CN205992115U - Light-source system and projector equipment - Google Patents

Abstract

The utility model provides a light source system and projection equipment. The light source system includes an excitation light source, a first supplementary light source, a first light guiding component, a wavelength conversion device and a second light guiding component. The excitation light source is used to emit excitation light; the first supplementary light source is used to emit first supplementary light. The first light guiding component is used to guide the excitation light to the wavelength conversion device. The wavelength conversion device is used to convert the excitation light into the subject light, and emit the subject light to the first light guiding component. The first light guiding component is also used to guide the received light so that the received light is directed to the second light guiding component. At least part of the components of the second light guide assembly are arranged on the light path after the received light exits from the first light guide assembly. The second light guiding component is used to guide one or both of the subject light and the first supplementary light, so that the first supplementary light and at least part of the subject light exit from the same exit channel. The utility model can greatly improve the light utilization rate of the first supplementary light.

Description

Light source system and projection equipment

technical field

The utility model relates to the field of optical technology, more specifically, to a light source system and projection equipment.

Background technique

At present, solid-state light sources have been widely used in general lighting, special lighting and projection display due to their long life and environmental protection. Among them, the white light solid-state light source has great development potential in the field of lighting.

The prior art provides a white light source that uses laser to excite phosphor powder to achieve ultra-high brightness. The white light source uses a blue-violet laser with a wavelength of 440nm-455nm to excite yellow phosphor powder of YAG:Ce material to generate high-efficiency yellow fluorescence. A blue laser with a wavelength of 440nm-470nm is then used to form a blue laser complementary to the yellow fluorescence, and the yellow fluorescence and the blue laser combine to form a white light source.

The white light source can be used in the field of projection display requiring a high-brightness light source. For example, single-chip, double-chip, three-chip DLP, LCD or LCOS projectors, etc. The white light emitted by this white light source is divided into three primary colors of red light, green light and blue light in the spectrum, which are respectively incident on one or more light modulation devices, such as DMD, LCD chip or LCOS chip. The three primary colors of red, green and blue light modulated by the light modulation device are combined in the spectrum and then output to the screen through a projection lens to form a color image.

Due to the relatively high efficiency of the blue-violet laser, thermal stability and long-term reliability are good. The fluorescent powder of YAG: Ce material has high luminous quantum efficiency and good thermal stability, so the combination of blue-violet laser and YAG: Ce phosphor forms a high-efficiency, high-reliability, and high-brightness white light source. That is to say, for two-chip and three-chip projectors, the combination of blue-violet laser and yellow phosphor is generally used to realize the white light source.

However, in a white light source that uses a blue-violet laser to excite YAG:Ce material phosphor powder to form white light, since the yellow light spectral intensity of YAG:Ce material phosphor powder stimulated emission is weakened in the red segment, so that this kind of white light The light source has a white balance problem, that is, the white light balance point deviates from the Planckian black body curve, showing a greenish white.

In order to avoid the white balance problem of two-chip and three-chip projectors, the existing technology provides a method to filter the excess green light component in the synthesized white light, so that the white balance point can be restored to the Planck black body curve to solve the problem of white balance. question. However, this method reduces the light extraction efficiency of the white light source because the green light component is filtered.

The existing technology provides another method of adding red laser light to yellow or red light to solve the white balance problem of white light sources. The red component, thus solving the white balance problem.

As shown in FIG. 1 , the structure of a light source system in which red laser light is added to yellow fluorescent light provided by the prior art. The light source system includes a blue excitation light source 11 , a red supplementary light source 12 , a spectral filter 13 with a central area and an edge area, a color wheel 14 , a condenser lens 15 and a uniform light device 16 . The central area of the spectral filter 13 transmits blue light and red light, reflects green light, and the edge area reflects red light, green light and blue light. In this way, the blue excitation light emitted by the blue laser light source 11 and the red light emitted by the red supplementary light source 12 are transmitted to the color wheel 14 through the central area of the spectral filter 13, and the yellow phosphor on the color wheel 14 absorbs the blue excitation light. Simultaneously, the red light is scattered, and yellow fluorescent light and scattered red light are emitted, and the yellow fluorescent light and scattered red light are incident to the spectral filter 13 through the condenser lens 15, and the yellow light that is incident to the center area of the spectral filter 13 The green light in the fluorescence is reflected to the uniform light device 16, and the yellow fluorescent light and red light incident to the edge area of the spectral filter 13 are also reflected to the uniform light device 16, while the incident light to the central area of the spectral filter 13 The red light in the yellow fluorescent light and the scattered red light are transmitted and lost.

In the above-mentioned existing white light source, the red light emitted by the red supplementary light source is scattered by the fluorescent material, resulting in a loss of about 5%-10%. After the Lambertian light distribution is formed, it is collected by the condenser lens and causes a loss of about 10%, and then it is transmitted by the central area of the spectral filter and loses a part of the light, about 10%, resulting in the loss of red light emitted by the red supplementary light source. The loss is relatively large, and the light utilization rate of red light is low, about 60-70%. However, due to the high cost of red supplementary light sources, and high requirements for heat dissipation, harsh heat dissipation conditions are required, so the utilization rate of red light Low will lead to a substantial increase in cost, which is unfavorable. Similarly, in order to obtain better green light, the method of adding green lasers to the light source will also be used, similar to the above method of increasing red lasers, and there is also a utilization rate low problem.

For a single-chip projector, the blue, green, and red segments of the blue-violet laser excitation sequence are generally used to generate the sequential red, green, and blue light to form white light. The blue light is provided by the blue-violet laser itself, and the green light is excited by the blue-violet laser. The green phosphor is produced, and the red segment is produced by blue-violet laser excitation of red phosphor, and the red phosphor has a serious efficiency attenuation problem under the condition of high energy density, resulting in a low proportion of red light, which affects white balance and image quality .

In order to avoid the white balance problem of the single-chip projector, in the prior art, the method of increasing the color segment of the red light is generally used to maintain the white balance, but this will reduce the brightness of the white light and the overall light effect.

Therefore, in view of the deficiencies of the prior art, it is urgent to propose a technical solution capable of improving the utilization rate of supplementary light sources such as red and green.

Utility model content

In view of this, the utility model provides a light source system and projection equipment to solve the problem of low light utilization efficiency of red light or other colored light emitted by supplementary light sources including red supplementary light sources in the prior art.

In order to achieve the above one purpose, the utility model provides the following technical solution: a light source system, which includes an excitation light source, a first supplementary light source, a first light guide assembly, a wavelength conversion device and a second light guide assembly, wherein: the excitation light The light source is used to emit excitation light; the first supplementary light source is used to emit first supplementary light. The first light guide component is used to guide the excitation light to the wavelength conversion device; the wavelength conversion device is used to convert the excitation light into the subject light, and emit the subject light to the first light guide component. The first light guide assembly is also used to guide the received light so that the received light travels to the second light guide assembly; at least some components of the second light guide assembly are arranged on the optical path after the received light exits from the first light guide assembly. The second light guiding component is used to guide one or both of at least part of the received light and the first supplementary light, so that the first supplementary light and at least part of the received light exit from the same output channel.

Further, the first light guiding component includes a light splitting component and a light reflecting component, the light splitting component transmits/reflects the excitation light and correspondingly reflects/transmits at least part of the stimulated light, and the light reflecting component further guides at least part of the stimulated light to the second light guide component.

Further, the second light guiding assembly includes a selective optical component, the selective optical component reflects/transmits the first supplementary light, or reflects/transmits the first supplementary light and correspondingly transmits/reflects at least part of the stimulated light.

Still further, the selective optical component is a filter that reflects the first supplementary light and transmits at least part of the received light, or is a reflective sheet or a polarizer that reflects the first supplementary light and does not reflect at least part of the received light, or is an area setting Coated or field-set polarizer filters.

Still further, the second light guiding assembly further includes a scattering component or/and a light homogenizing component disposed between the first supplementary light source and the selective optical component.

Still further, the second light guide assembly also includes a second condenser lens, the second condenser lens is used for converging the first supplementary light of the diffuser or/and uniform light component to the selective optical component, and the first supplementary The focal point of the light is on the selective optics.

Further, the light source system further includes a filter device, and the filter device is located between the first light guide assembly and the second light guide assembly, or located on the same exit channel.

Still further, the wavelength conversion device is a reflective color wheel, the filter device is a filter wheel, and the filter wheel is arranged on the outer or inner circumference of the reflective color wheel to form an integral structure with each other.

Still further, the second light guide assembly is located between the first light guide assembly and the filter wheel, or located downstream of the light path of the light emitted from the filter wheel.

Still further, the wavelength conversion device is a transmissive color wheel, the filter device is a filter wheel, the filter wheel and the transmissive color wheel are arranged separately, and at least some parts of the second light guiding assembly are located between the filter wheel and the transmissive color wheel. in the gap between the wheels.

Still further, the rotation axes of the filter wheel and the transmissive color wheel are parallel or coincident.

Still further, the light source system also includes a dodging device, and the dodging device is located on the same output channel.

Further, the light source system also includes a filter device and a light homogenization device, the filter device is located between two parts of the first light guide assembly, the light homogenization device is located on the exit channel of the received light after passing through the filter device, the first The supplementary light source and the second light guiding component are on the exit channel after the received light passes through the light homogenizing device.

Further, the excitation light is blue light, purple light or ultraviolet light.

Further, the first supplementary light is one or more of red light, green light or blue light.

Still further, the first supplementary light source includes two, and the two first supplementary light sources respectively emit the first supplementary light as red light and green light, and the second light guide assembly also includes a light splitting element, and the red light and green light pass through the light splitting element Exit to selective optics.

Further, the wavelength conversion device includes a wavelength conversion material, and the wavelength conversion material is yellow phosphor.

Further, the etendue of the first supplementary light is smaller than the etendue of the receiving light.

To achieve the above another object, the utility model provides a projection device, which includes the above-mentioned light source system.

Compared with the prior art, the technical solution provided by the utility model has the following advantages:

The utility model can increase the proportion of the first supplementary light in the combined light by supplementing the first supplementary light in the received light, and at the same time, at least part of the received light is directly emitted from the same exit channel through the second light-light guiding component, and The first supplementary light is not scattered by the wavelength conversion device, thereby avoiding the light loss of the first supplementary light due to the scattering of the wavelength conversion device, and greatly improving the light utilization efficiency of the first supplementary light.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a light source system provided by the prior art;

Fig. 2 is a schematic structural diagram of the light source system provided by the first embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the light source system provided by the second embodiment of the present invention;

4 is a schematic diagram of the corresponding relationship between the reflectance of the coating of the selective optical component in the embodiment shown in FIG. 3 and the spectra of the first supplementary light and the received light;

5 is a schematic diagram of the corresponding relationship between the light transmittance of the coating of the selective optical component and the spectra of the first supplementary light and the received light in another implementation of the second embodiment of the present invention;

Fig. 6 is a schematic structural diagram of the light source system provided by the third embodiment of the present invention;

7 is a schematic diagram of the corresponding relationship between the light transmittance of the coating of the selective optical component and the spectra of the first supplementary light and the received light in another embodiment of the third embodiment of the present invention;

Fig. 8 is a schematic structural diagram of the light source system provided by the fourth embodiment of the present invention;

Fig. 9 is a schematic structural diagram of the light source system provided by the fifth embodiment of the present invention;

Fig. 10 is a schematic structural diagram of the light source system provided by the sixth embodiment of the present invention;

Fig. 11 is a schematic structural diagram of the light source system provided by the seventh embodiment of the present invention.

detailed description

The utility model provides a light source system, which includes at least two light sources, a wavelength conversion device, a first light guiding component and a second light guiding component. The at least two light sources include an excitation light source and a first supplementary light source, wherein: the excitation light source is used to emit excitation light, and the first supplementary light source emits first supplementary light. The first light guiding component is used to guide the excitation light emitted by the excitation light source to the wavelength conversion device. The excitation light can be converted into the subject light by the wavelength conversion device, and the subject light is emitted to the first light guiding component, and the first light guiding component is also used to guide the subject light to the second light guiding component. Preferably, the etendue of the first supplementary light is smaller than the etendue of the receiving light. The second light guiding component is used to guide one or both of at least part of the received light and the first supplementary light, so that the first supplementary light and at least part of the received light exit from the same output channel.

Preferably, the structural size of the selective optical component included in the second light guiding assembly can be based on the amount of light loss when the excitation light passes through the selective optical component, the amount of light loss when the first supplementary light passes through the selective optical component, the affected One or more combinations of the amount of light loss when the laser passes through the selective optical components are set.

The utility model also provides a projection device, which includes the above-mentioned light source system.

The light source system provided by the utility model includes at least two light sources. The at least two light sources include an excitation light source and a first supplementary light source. The conversion device can see that the excitation light is converted into the subject light, and the subject light is guided to the second light guide component through the first light guide assembly, the etendue emitted by the first supplementary light source is smaller than the etendue of the subject light, and the first supplementary light passes through the second The light guiding component combines light with at least part of the received light and further guides it to the same exit channel for emission, so that the first supplementary light in the combined light can be supplemented by supplementing the first supplementary light in the combined light, and at the same time due to the same A dodging device or a dodging device and a light filtering device can be set on the exit channel of the light guide assembly, and the second light guide component can directly guide the first supplementary light to the dodging device or guide the first supplementary light to the dodging device through the filtering device , without being scattered by the wavelength conversion device, thereby avoiding the light loss of the first supplementary light due to the scattering of the wavelength conversion device, and greatly improving the light utilization efficiency of the first supplementary light such as red light, red The light utilization efficiency of light can be increased to more than 80%.

The above is the core idea of the utility model. In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings.

In the following description, a lot of specific details have been set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways that are different from those described here, and those skilled in the art can do so without violating the connotation of the utility model. Under the circumstances, similar applications are made, so the utility model is not limited by the specific embodiments disclosed below.

Secondly, the utility model is described in detail in combination with schematic diagrams. When describing the embodiments of the utility model in detail, for the convenience of explanation, the cross-sectional view showing the structure of the device will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it will not be described here. The protection scope of the utility model should be limited. In addition, the three-dimensional space dimensions of length, width and depth should be included in actual production.

The following describes in detail through several embodiments.

Embodiment one

This embodiment provides a light source system 20. As shown in FIG. Device 24 , second light guide assembly 25 . In this embodiment, the wavelength conversion device is a reflective color wheel 24 (such as a wavelength conversion layer directly coated on a reflective substrate) as an example, of course, the wavelength conversion device may also be a transmission wavelength conversion device (such as including a transparent substrate and a wavelength conversion material doped inside the transparent substrate). The wavelength conversion material includes but not limited to phosphor powder, quantum dot material and the like. The wavelength conversion layer is a layer of wavelength conversion material or a diaphragm formed by sintering the wavelength conversion material and an adhesive, or the like. Preferably, the wavelength converting material may be yellow phosphor, yellow-green phosphor, green phosphor, etc. As a specific implementation, the first light guide assembly 23 includes a light splitting component such as a total reflection sheet 231 coated for an area and a reflective component such as a reflective mirror 232 that are oppositely arranged as the total reflection sheet 231 and the reflective mirror 232. In a specific arrangement, the total reflection sheet 231 and the reflective mirror 232 are arranged at different angles of 45° relative to the horizontal plane. The total reflection sheet 231 is provided with a coating corresponding to the incident area of the excitation light to transmit the excitation light and reflect the received light, and the other areas are set to reflect the received light, the excitation light or both. Further, in order to improve the light purity of the subject light or the subject light and the first supplementary light (further described below), an annular filter wheel can be arranged on the outer or inner periphery of the circular color wheel, that is to say, a reflective color wheel It has an integrated structure with the filter wheel. In the present invention, the reflective color wheel and the filter wheel with an integrated structure take an example of setting a ring-shaped filter wheel on the outer periphery of a circular color wheel. The type and division of the wavelength conversion material on the reflective or transmissive color wheel, and the type and division of the filter of the corresponding integral or split (further explained below) filter wheel can be determined according to the actual situation. And the respective rotation angles of the divisions of the color wheel and the filter wheel match. In order to improve the utilization rate of the excitation light and the received light, the first light guide assembly 23 can also be included between the total reflection sheet 231 and the reflective color wheel 24, between the total reflection sheet 231 and the reflection mirror 232, between the reflection mirror 232 and the filter The first condenser lens 233 that is arranged between the light wheels 26 and between the filter wheel 26 and the second light guide assembly 25, the first condenser lens 233 can be a convex lens, a concave lens or a combination of the two, etc., and the first The number of condenser lenses 233 can be determined according to actual needs.

The excitation light source 21 and the first supplementary light source 22 are used to emit excitation light and first supplementary light respectively. The excitation light source 21 and the first supplementary light source 22 respectively include a solid state light emitting component, and the solid state light emitting component is a single solid state light emitting device or an array of solid state light emitting devices including a plurality of solid state light emitting devices. The solid state light emitting device may be a laser diode (LD) or a light emitting diode (LED). The excitation light is blue light, purple light or ultraviolet light. The spectral range of the first supplementary light is different from the spectral range of the excitation light, and the spectral range of the first supplementary light is narrower than that of the subject light, so as to improve the color saturation of combined light of the subject light and the first supplementary light. Preferably, the etendue of the first supplementary light is smaller than the etendue of the receiving light. For example, the color of the first supplementary light emitted by the first supplementary light source 22 can be set according to different requirements for the received light. For example, when there is a lack of or insufficient light of a certain color in the received light, the first supplementary light That is, the light of this color, such as the first supplementary light can be one or more of red light, green light, blue light, etc., preferably, the color of the first supplementary light is the same as that of the above-mentioned received light that is lacking or insufficient. A certain color of the light is consistent. The first supplementary light is, for example, the laser emitted by the solid-state light source, and the received light is, for example, the fluorescence generated by the excitation of the wavelength conversion material. Since the spectra of the laser and the fluorescence overlap, it can be obtained by pairing The two perform etendue combined light, so as to obtain better image quality and higher fill light efficiency.

The second light guide assembly 25 includes a selective optical component 251. In addition, in order to obtain a better light output effect of the first supplementary light, the second light guide assembly 25 also includes a Between the scattering sheet 252 that can be used as a scattering component and the fly-eye lens pair 253 that can be used as a uniform light component, wherein the scattering sheet 252 can perform decoherence processing on the first supplementary light emitted by the solid-state light emitting component included in the first supplementary light source 22, The scattering sheet 252 can be a rotating scattering sheet, a vibrating scattering sheet, etc. Since the first supplementary light emitted by the solid-state light-emitting component is decoherently processed through the scattering sheet 252, the combination of the received light and the first supplementary light is avoided. The speckle phenomenon that exists. In addition, preferably, a second condenser lens 254 is arranged between the fly-eye lens pair and the selective optical component 251, so that the first supplementary light homogenized by the fly-eye lens pair can be converged to the selective optical component 251, preferably What is, the mutual position of the second condenser lens 254 and the selective optical component 251 is set so that the converging point of the first supplementary light is on the selective optical component 251, because the converging point of the first supplementary light is on the selective optical component 251 , and the selective optical component 251 reflects the first supplementary light to the exit channel, thereby reducing the area on the selective optical component 251 for reflecting the first supplementary light, and correspondingly, reducing the spectral range of the first supplementary light. The light loss caused by the reflection of the received light or the part of the light containing the similar spectral range when passing through the area improves the light utilization efficiency. In addition, the first light guide assembly can also include a square rod (not shown) that can be used as a uniform light device, and the square rod is arranged between the filter wheel 26 and the first condenser lens 233 and the second light guide assembly 25 Between filter wheels 26.

The selective optical components are described in detail below, and it can be understood that any of the following selective optical components can be applied not only to this embodiment, but also to other embodiments, unless otherwise specified illustrate. The selective optic reflects the first supplemental light or reflects the first supplemental light and transmits at least part of the stimulated light. As a practicable manner, the selective optical component is an optical filter including a central diaphragm and an edge diaphragm, wherein the size of the central diaphragm is smaller than that of the edge diaphragm. The central diaphragm and the edge diaphragms can be integral diaphragms, or separate diaphragms respectively. The size of the central diaphragm can be based on one of the light loss when the first supplementary light passes through the central diaphragm, the light loss when the exciting light passes through the central diaphragm, the light loss when the receiving light passes through the central diaphragm, or Various combinations can be set. As yet another practicable manner, the selective optical component is a separate reflector or polarizer, or the selective optical component includes a reflector or polarizer and a fixing member for fixing the reflector or polarizer (not shown in the figure) shown), a coating is set on the reflector or polarizer, so that the reflector or polarizer reflects the first supplementary light, and at least part of the received light is transmitted without being reflected by the reflector. Preferably, the size of the reflector and polarizer Matching the light spot of the first supplementary light incident on one of the two, that is, the entire area of the reflector or polarizer is coated, so that the adverse effect of the reflector or polarizer on the laser light, such as reflection, can be reduced. In addition, the reflective sheet may not include a coating, and part of the received light that is incident on the reflective sheet will be completely reflected and cannot be transmitted. Therefore, this part of the received laser light will have a large loss of light, but compared with that on the reflective sheet In terms of setting the coating, the cost can be reduced. As yet another practicable manner, the selective optical component is an optical filter, and the optical filter is provided with a first coating or a polarizer in the central area. For the case where the central area of the optical filter is provided with a coating, the coating of the optical filter One side of the area reflects the first supplementary light, and the other side transmits the received light or a part of the received light but reflects the light in the received light which is close to the spectral range of the first supplementary color, thereby causing a certain loss. For the case where a polarizer is set in the central area of the optical filter, the edge area of the optical filter transmits the received light, and the polarizer is a polarizer for the first supplementary light, that is, the polarizer reflects the first supplementary light with the first polarization state , transmits the second supplementary light having the second polarization state, but it can be known that, in general, for the first supplementary light source 22 comprising a solid-state light-emitting component, the first supplementary light emitted by it can be controlled to basically have a A polarization state of light, such as P state, therefore, the above-mentioned polarizer reflects the first supplementary light with P polarization state, and at the same time transmits part of the received light with S polarization state in the received light, and can be used, for example, as The fluorescence of the subject light includes two polarization states of P state and S state. Therefore, by setting a polarizer in the optical filter corresponding to the incident area of the first supplementary light, it is possible to guide the part of the subject light with a polarization state different from that of the first supplementary light. The light and the first supplementary light exit from the same exit channel, therefore, only the light of the P polarization state will be reflected and lost when the receiving light passes through the polarizer area, thus reducing the loss of the receiving light passing through the polarizer, and the utilization of the receiving light higher efficiency. As another practicable manner, the selective optical component is provided with a wavelength filter of a second coating in the central area, and the second coating has different filtering curves for light of different polarization states, for example, for the first supplementary light In the case of P-polarized red light, and the received light includes green light, blue light, and red light with two polarization states, the second coating can reflect the first supplementary light that is P-polarized red light, and transmit The green light of P and S polarization state, the blue light of P and S polarization state and the red light of S polarization state in the receiving light, only the red light of P polarization state in the receiving light will be reflected and lost by the second coating, so compared with In the case where a polarizer is arranged in the central area of the above-mentioned filter, and the polarizer only allows one of the two polarization states of light included in each light to transmit, the second coating can allow part of the light included in each light to transmit. Both polarization states of the light are transmitted, so the loss of the received light passing through the second coating can be further reduced. Preferably, the area of the central diaphragm, the first coating in the central area, the polarizer in the central area, or the area of the second coating in the central area of the wavelength filter in each of the above-mentioned embodiments is less than 50% of the useful spot area. The useful spot area refers to the area of the spot formed on the entire filter by the received light emitted by the wavelength conversion device. In addition, it can be understood that the above descriptions about the location of the center and the central area are not mandatory, and the locations can also be adjusted according to actual needs. It should also be pointed out that the above describes the situation that the selective optical component reflects the first supplementary light or reflects the first supplementary light and transmits at least part of the received light. However, according to the needs of the optical path design and optical component arrangement, it can also The selective optical component transmits the first supplementary light or transmits the first supplementary light and reflects at least part of the received light by making appropriate adjustments with reference to any one of the above selective optical components.

Referring to Fig. 2, a specific example will be used to describe the above-mentioned light source system provided by the embodiment of the present invention. Assume that the excitation light emitted by the excitation light source 21 is blue excitation light B, and the first supplementary light emitted by the first supplementary light source 22 is red light R. In addition, the first supplementary light can also be green light, or the second supplementary light can be implemented. A supplemental light may include red light and green light. The wavelength conversion device is a reflective wavelength conversion device, and the wavelength conversion material is yellow fluorescent powder, then the optical path principle of the above light source system 20 is as follows: the blue excitation light B passes through the total reflection sheet 231 coated in the area and the first condenser lens in sequence 233 is incident to the color wheel 24, and the yellow light Y generated by the yellow fluorescent powder that excites the color wheel 24 or the yellow light Y and the unconverted blue excitation light B are reflected to the first condenser lens 233, and then further, The yellow stimulated light Y is reflected by the total reflection sheet 231, and the unconverted blue excitation light B is reflected by other areas of the total reflection sheet except the coating area corresponding to the incidence of the excitation light. Then, the yellow stimulated light Y or The yellow converted light Y and the unconverted blue excited light B are guided to the first condenser lens 233 and the mirror 232 and then incident on the filter wheel 26, and further incident on the filter wheel 26, which can be used as a selective optical The central area of the component is provided with the filter 251 of the polarizer 251A. Among the yellow received light Y emitted on the polarizing plate 251A, the light having a polarization state different from that of the first supplementary light is transmitted and the light having the same polarization state as the first supplementary light is reflected by the polarizing plate 251A to be lost, thereby reducing In the received light, the light reflected by the polarizer and having a polarization state different from that of the first supplementary light improves the utilization rate of the received light. The yellow received light beam Y emitted to the region of the filter 251 other than the polarizing plate 251A is transmitted. The red light R emitted by the first supplementary light source 22 is decoherently processed by the diffuser 252 and homogenized by the fly-eye lens pair 253 , then converges to the polarizer 251A and is reflected to the output channel. In this way, the red light R can be supplemented in the received light, and the red light R of the first supplementary light and the red received light can realize etendue combination through the polarizer 251A. Since the red light R is not scattered by the wavelength conversion device, it is directly guided to the exit channel through the polarizer 251A, thereby reducing the light loss of the red light R and improving the light utilization rate of the red light R. It can be seen that the red light R and the yellow received light Y can enter the light modulation device through the same output channel, such as a one-chip or three-chip DMD light modulation device.

In this embodiment, the excitation light emitted by the excitation light source is guided to the wavelength conversion device through the first light guide component, and the subject light emitted by the wavelength conversion device is guided to the filter device and then directed to the second light guide component, and The first supplementary light emitted by the first supplementary light source is guided by the second light guide assembly to be combined with the received light directed to the second light guide assembly and injected into the exit channel. Since the first supplementary light has not been scattered by the wavelength conversion device, Therefore, the light loss of the first supplementary light is greatly reduced, and the supplementary light efficiency of the first supplementary light is improved.

It should be emphasized that, in order to make the description more concise, the following descriptions of other embodiments and the components and structures in the corresponding drawings that are the same as those in Embodiment 1 will not be repeated one by one and the reference signs can be obtained by referring to the above content Know.

Embodiment two

This embodiment provides another light source system 30, as shown in FIG. 3, the main difference between this light source system 30 and the light source system 20 shown in FIG. Compared with Embodiment 1, the light guide assembly 35 does not have a scattering component and a light homogenizing component between the selective optical component 351 and the first supplementary light source 32, further, the first supplementary light and the same exit channel of the received light A dodging device 37 is arranged on it. The above-mentioned light source system 30 provided in this embodiment will be described below with a specific example, assuming that the excitation light emitted by the excitation light source 31 is blue excitation light B, and the first supplementary light emitted by the first supplementary light source 32 is red light R, The wavelength conversion device is a reflective color wheel 34, and the wavelength conversion material is excited by the excited light to generate one or more of the blue B, green G, and red R light. The specific conditions of the light can be determined according to the light modulation device Depending on the quantity and type, the subject light is guided by the first light guide assembly 33, exits the reflective color wheel 34 and enters the filter wheel 36, and the subject light emitted from the filter wheel 36 is further directed to the second light guide assembly 35 of the selective optical component 351, and together with the red light R which can be used as the first supplementary light, exit to the fly-eye lens pair 37 which can be used as a uniform light device. Furthermore, in this embodiment, the first supplementary light source 32 adopts a red laser array, which emits red laser light R, and the excitation light source 31 adopts a blue laser array, which emits blue laser light B, which excites the reflective color wheel 34 The above-mentioned fluorescent material that can be used as a wavelength conversion material produces one or more of the above-mentioned fluorescences. The red laser R and the red fluorescence adopt the method of expanding light at the coating of the selective optical component 351, see FIG. 4, and FIG. 4 schematically shows the red laser spectrum RL and the red fluorescence spectrum RP and the reflectance curve CR of the coating of the selective optical component 351. Since the wavelength range of the red laser spectrum is narrow, the wavelength range of the red fluorescence spectrum is wide. Within a certain range of the peak wavelengths of the red laser spectrum RL and the red fluorescence spectrum RP, the wavelength range corresponding to the part of the red fluorescence spectrum RP1 (as shown in the bold curve in Figure 4) is related to the reflectance curve CR and the reflectance curve CR. The wavelength ranges all have overlapping parts. It can be seen that the coating will inevitably reflect the red fluorescence with more corresponding wavelengths in the overlapping part while reflecting the red laser light, resulting in a certain loss of red fluorescence. However, due to the red fluorescence The wavelength range of the spectrum is wide, and by reasonably setting the bandpass and bandstop of the coating, the red fluorescence corresponding to the wavelength range of the part of the red fluorescence spectrum RP2 on the right side of the thickened curve RP1 (as shown by the dotted line in Figure 4) does not It will be reflected and transmitted and emitted together with the red laser, which improves the utilization rate of the received light. In addition, the red laser light occupies a relatively small central area of the fly-eye lens pair 37, and one or more of the above-mentioned blue B, green G, and red R fluorescences occupy the rest of the area, and are finally imaged on the light modulation device. Fluorescence can form a well-uniform spot, and the spot is finally formed into an image by the projection lens and observed by the human eye. Therefore, the fly-eye lens is fully utilized to uniformly light the light to form a good surface distribution. Optical components such as scattering components and uniform light components are added to reduce costs while still ensuring that the outgoing light is within an acceptable range. In addition, with further reference to FIG. 5 , as yet another embodiment, for the above-mentioned coated selective optical component 351 having the characteristics shown in FIG. 4 , the selective optical component 351 can be further improved to increase the Polarization state characteristics, such as a feasible improvement, the improved selective optical component can be obtained by setting a coating on the polarizer, and the improved selective optical component has the reflectivity and transmittance shown in Figure 4 and Figure 5 above rate characteristics. When the red laser light R is S polarization state light, and the received light is red fluorescence and includes two polarization states of P state and S state, the improved selective optical component reflects the red light R of S polarization state, and, for all but the same In addition to the loss caused by the light reflection of the S polarization state in the red fluorescent light corresponding to the wavelength range corresponding to the R spectral range of the red laser light, the red fluorescent light outside the above roughly the same wavelength range has two polarizations, P state and S state. All the light in the state can be transmitted through the improved selective optical component 351, so that the loss of red fluorescence can be greatly reduced while ensuring the red laser light R has a high supplementary light efficiency. Therefore, from the above, through the improved The selective optical component 351 can achieve etendue light combination and polarization state light combination for the red laser light and red fluorescent light incident thereon.

Embodiment three

This embodiment provides another light source system 40, as shown in FIG. 6, the main difference between this light source system 40 and the light source system 30 shown in FIG. A supplementary light source 42 is arranged on the same side of the selective optical component 451 as the first supplementary light source 42 ′, and the first supplementary light source 42 ′ and the first supplementary light source 42 are located on both sides of the light splitting element 455 included in the second light guide assembly 45 , the light splitting element 455 utilizes wavelength splitting so that one of the light emitted by the first supplementary light source 42' and the first supplementary light source 42 is transmitted and reflected by the other and is emitted to the selective optical component 451 from the same optical path. Therefore, even if two For the first supplementary light source, the area of the incident area of the selective optical component 451 corresponding to all the first supplementary light does not need to be enlarged accordingly, so that the increase of light loss passing through the selective optical component 451 can be avoided. In addition, it should be known that, for two or more first supplementary light sources that emit light of two or more different colors, these first supplementary light sources can also be emitted through different second light guide components corresponding to them, for example , assuming that two first supplementary light sources emit light of two different colors, relative to the light path direction of the received light passing through the filter wheel, one of the first supplementary light sources and its corresponding second light guide assembly are arranged in front of the filter wheel, and the other A first supplementary light source and its corresponding second light guide assembly are arranged behind the filter wheel. In addition, it should be known that a solid-state light source capable of emitting light of two different colors may also be provided in a first supplementary light source, and the light of two different colors emits to the second light guide assembly along a substantially parallel direction. The above-mentioned light source system 40 provided by this embodiment will be described below with a specific example, assuming that the excitation light emitted by the excitation light source 41 is blue excitation light B, and the first supplementary light emitted by the first supplementary light source 42 is red light R, The first supplementary light emitted by the first supplementary light source 42' is green light G, the wavelength conversion device is a reflective color wheel 44, and the wavelength conversion material is excited by the excitation light to generate the yellow subject light Y or the yellow subject light Y and the unconverted yellow light Y. Converted blue excitation light (not shown). The received light is guided by the first light guide assembly 43, emerges from the reflective color wheel 44 and enters the filter wheel 46, and the received light emitted from the filter wheel 46 is further directed to the second light guide assembly 45, and is combined with the selected The red light R or/and the green light G reflected by the optical component 451 are jointly emitted to the fly-eye lens pair 47 which can be used as a uniform light device. In this embodiment, since there are two first supplementary light sources, and they respectively emit the first supplementary light of red light R and green light G, according to actual needs, for example, the received light of red fluorescence and green fluorescence can be respectively Complementary red light R and green light G to obtain better image quality.

In addition, as yet another embodiment, the color emitted by the first supplementary light source 42' can be replaced from green to blue, that is, the two first supplementary light sources emit supplementary blue laser light and supplementary red laser light respectively. The excitation blue laser light emitted by the excitation light source 41 excites the wavelength conversion material to generate yellow fluorescence. Preferably, when the first supplementary light source emitting blue laser light is working, the excitation light source 41 that does not excite the wavelength conversion material is not working. Further referring to FIG. 7, FIG. 7 schematically shows the light transmittance curve of the excitation blue laser spectrum BE, the supplementary blue laser spectrum BL, the supplementary red laser spectrum RP, the yellow fluorescence spectrum YP, and the coating of the selective optical component 451 CT, the wavelength range of the blue laser light emitted by the first supplementary light source is greater than the wavelength range of the blue laser light emitted by the first light source 41. Specifically, a blue laser light close to blue-violet is used as the excitation blue laser to excite the phosphor, because the blue-violet The excitation efficiency of the blue laser is higher than that of other wavelengths of blue lasers. Therefore, the short-wavelength blue laser is used to excite the phosphor, and the slightly longer-wavelength supplementary blue laser is used as the blue primary color light of the light source system, which not only realizes efficient fluorescence excitation, It also ensures the purity of the color gamut. Moreover, by setting the light transmittance curve of the coating reasonably, the coating can transmit most of the yellow fluorescence while transmitting the blue laser light for excitation, reflecting the supplementary blue laser light and the supplementary red laser light. Therefore, the light transmittance shown in Figure 7 The coating with curved characteristics can reduce the loss of the received laser light as much as possible while ensuring the supplementary light efficiency. In addition, since the blue laser light B emitted by the excitation light source 41 excites the yellow fluorescent light Y produced by the reflective color wheel 44, basically no blue light is included. Therefore, by setting a first supplementary light source that emits blue laser light, the color coordinates of the blue light are set To be closer to the color gamut requirement, when part or all of the blue light of the light source system is provided by the blue light emitted by the first supplementary light source, the color coordinates of the blue light will be better, and of course, the utilization rate will be higher. In addition, both the exciting blue laser light and the first supplementary light can be reflected by the selective optical component 451 and output to the same output channel as the yellow subject laser light Y, and the supplementary blue laser light emitted by the first supplementary light source is relatively close to the subsequent optical path, so , the supplementary blue laser light does not need to pass through the first light guide assembly, thereby reducing a certain amount of light loss inevitably caused by the supplementary blue laser light passing through various components of the first light guide assembly, and can meet the situation that the light source system 40 needs a large amount of blue light.

Embodiment four

This embodiment provides another light source system 50, as shown in FIG. 8, the main difference between this light source system 50 and the light source systems shown in FIGS. position, the components included in the second light guide assembly 55, specifically, with respect to the light path of the filter wheel that can be used as a filter device when the incident light is incident on the light, the second light guide assembly 55 in the above embodiments is all It is arranged behind the filter wheel, while the second light guide assembly 55 in this embodiment is arranged in front of the filter wheel 56 . For a specific example of the light source system 50 provided in this embodiment, the conditions of the excitation light and the receiving light are the same as those in the first embodiment, and will not be repeated here. 8, the red light R, which can be used as the first supplementary light, is reflected by the selective optical component 551 of the second light guide assembly 55 and combined with the yellow converted light Y or the yellow converted light Y and the unconverted blue excited light B Commonly output to the filter wheel 56, in this embodiment, the selective optical component 551 of the second light guide assembly 55 is arranged between the mirror 532 and the filter wheel 56, the selective optical component 551 guides the red light reflected by it The light R and the yellow converted light Y reflected by the reflector 532 or the yellow converted light Y and the unconverted blue excitation light B jointly exit to the filter wheel 56 . In addition, as an alternative implementation, the selective optical component 551 of the second light guide assembly 55 can also be arranged between the total reflection sheet 531 and the reflective mirror 532 (not shown), and the selective optical The component 551 guides the red light R reflected by it and the yellow received light Y reflected by the total reflection sheet 531 or the yellow received light Y and the unconverted blue excited light B to exit to the mirror 532 and further exit to the filter Wheel 56. Moreover, the received light and the first supplementary light after passing through the filter wheel 56 are further incident on the third condenser lens 59 and a uniform light device (not shown). Preferably, in this embodiment, the second light guide assembly 55 further includes a diffusion sheet 552 and a fourth condensing lens 554 arranged between the first supplementary light source 52 and the selective optical component 551. Regarding the arrangement of the diffusion sheet The advantages of the lens 552 and the third condenser lens 554 can be known by referring to the relevant content in the first embodiment above. In this embodiment, since the positions of the first supplementary light source and the second light guide assembly utilize the gap between the reflector 532 and the filter wheel 56 , the structure of the light source system can be made more compact.

Embodiment five

This embodiment provides another light source system 60, as shown in FIG. 9, the main difference between this light source system 60 and the light source system 50 shown in FIG. The components included in the guiding assembly 63, the positions of the first supplementary light source 62 and the second light guiding component 65, specifically, the transmissive color wheel 64 that can be used as a wavelength conversion device and the optical filter that can be used in this embodiment The filter wheel 66 is a split structure, and the two are respectively arranged on the outgoing light path of the blue excitation light B emitted by the excitation light source 61 and the outgoing light of the received light, and at least some parts of the second light guide assembly 65 are arranged on a separate transmission type In the gap between the color wheel 64 and the filter wheel 66. The above-mentioned light source system 60 provided by this embodiment is described below with a specific example, assuming that the excitation light source 61 emits blue excitation light B, and the first supplementary light emitted by the first supplementary light source 62 is red light R. The blue excitation light first passes through the first condensing lens 631 included in the first light guide assembly 63 and enters the above-mentioned transmissive color wheel 64 to generate the received light. The color of the received light can be any one of the other above-mentioned embodiments. In this case, the received light is transmitted to the selective optical component 651 of the second light guide assembly 65 after being transmitted through the transmissive color wheel 64 and is emitted to the filter wheel 66 together with the red light R. Preferably, in the transmissive color wheel 64 The first condenser lens 631 included in the first light guide assembly 63 is arranged between the selective optical component 651 assembly, and the received light and red light R passed through the filter wheel 66 are further incident on the compound eye that can be used as a uniform light device Lens pair 67. In this embodiment, by disposing the selective optical component 651 of the second light guide assembly 65 in the gap between the separate transmissive color wheel 64 and the filter wheel 66, the gap is fully utilized, therefore, there is Helps to reduce the overall space occupied by the optical system 60. In addition, in general, the filter wheel 66 also has the function of scattering or decoherence, so compared with Embodiment 4, in this embodiment, the scattering between the first supplementary light source and the selective optical component can also be correspondingly reduced. pieces, thereby saving costs.

Embodiment six

This embodiment provides another light source system 70, as shown in FIG. 10, the main difference between this light source system 70 and the light source system 50 shown in FIG. The components included in the second light guide assembly 75, therefore, the same components and optical paths as those in FIG. 8 and Embodiment 4 will not be repeated. Specifically, referring to FIG. A selective optical component 751, which is a filter that transmits the first supplementary light and reflects the converted light or the converted light and the unconverted excitation light to be jointly emitted to the outside of the color wheel 74 and integrated with the color wheel 74 As for the wheel 76 , it can be seen that the second light guide assembly 75 may also include a diffusion sheet 752 and a fourth condenser lens 754 disposed between the first supplementary light source 72 and the selective optical component 751 . The above-mentioned light source system 70 provided by this embodiment is described below with a specific example. The red light R that can be used as the first supplementary light passes through the total reflection sheet 751 that can be used as a selective optical component to set the coating film. The total reflection sheet 751 The central area is provided with a coating that transmits the red light R and reflects the yellow received light Y or the yellow received light Y and the unconverted blue excited light B, and the edge area of the total reflection sheet 751 reflects the yellow received light Y or the yellow received light Y and The unconverted blue excitation light B, thus, the total reflection sheet 751 guides the red light R and the received light Y, or the red light R, the yellow received light Y and the unconverted blue excitation light B to jointly exit to the filter wheel 76 on. In addition, similarly, with reference to the arrangement of the first supplementary light source 72 relative to the selective optical component 751, the first supplementary light source 72 can also be arranged relative to the total reflection sheet 731 with a coating in the area. In this case, the first supplementary light source 72 is transmitted through the coating of the total reflection sheet 731, and the received laser light or the excited light that has not been converted is reflected by the area 731 of the total reflection sheet except for the coating, so as to jointly exit to the mirror. This mirror is the same as that in Embodiment 4. The mirrors described act the same. That is to say, the above-mentioned total reflection sheet 731 can transmit the first supplementary light and the excitation light and reflect the converted light or the converted light and the unconverted excitation light. From the above, in this embodiment, the arrangement position of the first supplementary light source is more flexible. In addition, compared with the other embodiments above, it can be understood that the first light guide assembly and the second light guide assembly actually include The same components, that is, share the same components, thus helping to reduce the cost of the light source system.

Embodiment seven

This embodiment provides another light source system 80. As shown in FIG. 11, since the first supplementary light inevitably has a certain amount of light loss when it passes through the optical components, in order to further improve the supplementary light efficiency of the first supplementary light , to reduce the number of optical components that the first supplementary light passes through, the first supplementary light source 82 and the second light guide assembly 85 in this embodiment are arranged on the exit channel of the received light after passing through the uniform light device 87 . Hereinafter, a specific example will be used to describe this embodiment in more detail, and the same components and optical paths as those in FIG. 3 and Embodiment 2 will not be repeated. The received light emitted from the filter wheel 86 arranged outside the color wheel 84 and integrated with the color wheel 84 exits to the fly-eye lens pair 87 that can be used as a light homogenizing device, and the received light after being uniformed can be used as the first supplementary light The red light R is jointly emitted under the guidance of selective optical components such as the total reflection sheet 851 coated for the area. Specifically, the red light R can be transmitted through the coating of the total reflection sheet 851, and the receiving The laser light or the received light and the unconverted excitation light can be reflected by the area other than the coating of the total reflection sheet 851, and the above-mentioned coating area can also reflect the wavelength range corresponding to the spectrum of the red light R that is incident on it or is different from the red light R. The spectrum of the light R corresponds to part of the received light with different wavelength ranges and different polarization states, so that they are emitted together. The specific structure and function of the total reflection sheet 851 can be obtained by referring to the above, and will not be described in detail. The above-mentioned jointly emitted light enters the light valve 88 through the same exit channel, and reflectors, condenser lenses, etc. can be arranged on the same exit channel, and the light valve can be DMD, LCD, LCOS, etc. In this embodiment, with respect to the light path where the received light enters the light homogenizing device 87 through the first condenser lens 833, the first supplementary light source 82 and the second light guide assembly 85 of the optical system 80 are both arranged behind the light homogenizing device 87, which can The number of optical components passed by the red light R is reduced to a large extent, the light loss of the red light R is reduced, and the light utilization rate of the red light R can be increased to more than 90%. It can be seen that, in this embodiment, the first light guiding assembly 83 includes a first condenser lens 833 and a light homogenizing device 87, that is to say, the filter wheel 86 is located in two parts of the first light guiding assembly, that is, two between the first condenser lenses 833 . In addition, in order to decoher and homogenize the first supplementary light, a diffusion sheet 852 and a fly-eye lens pair 853 can also be arranged between the first supplementary light source 82 and the total reflection sheet 851, so even if the first supplementary light has not been homogenized The homogenization effect of the device 87 can still ensure high uniformity.

Based on the above-mentioned embodiments, it can be known that the main inventive point of the utility model is that by rationally setting the coating film on the selective optical component or the coating film adopted by the selective optical component as a whole, according to the etendue of the first supplementary light is smaller than the optical Etendue, so that the two perform the optical combination of the etendue at the coating place, on this basis, further according to the wavelength spectrum of the first supplementary light is smaller than the wavelength spectrum of the received light, so that the two also perform wavelength combination at the coating place, In addition, it can further be based on the fact that the polarization of the first supplementary light is better (for example, the polarization state of the laser can be controlled to be basically one), while the received light includes light of two polarization states (for example, the polarization state of the fluorescence includes two kind), therefore, it is also possible to combine the two polarization states, that is to say, by rationally setting the characteristics of the coating, for the first supplementary light and the receiving laser light, the two can be combined only by the amount of expansion, or they can be combined at the same time. On the basis of achieving extended light combination, wavelength light combination or/and polarization state light combination is further carried out, thereby not only improving the supplementary light efficiency of the first supplementary light but also reducing the loss of the received light. Furthermore, the co-exiting of the first supplementary light and the subject light described herein includes the situation that the first supplementary light and part of the subject light pass through the coating and emerge together by using any of the light combining methods described above. Regarding the reasonable setting of the above-mentioned coating, it can be obtained by referring to the second embodiment and Fig. 4 and 5, and the third embodiment and Fig. 7 in combination with the existing process and method for making the coating in the art. In addition, it can be seen that for the The central diaphragm of the optical filter, the polarizer provided in the central area of the optical filter, the second coating film provided in the central area of the wavelength filter, and the coating of a separate reflector or polarizer can be obtained by referring to the above-mentioned descriptions. Set their reflectance or transmittance curves to obtain corresponding technical effects. In addition, the coating film described in this article is only a specific example and should not be taken as a limitation. As long as it can play the role of the coating film in this article, it can selectively transmit and reflect different lights. within the scope of protection.

The utility model also provides a projection device, which includes the light source system in any one of the above embodiments.

It should be noted that, according to the actual situation, the dodging component and the dodging device mentioned above can respectively use a dodging rod or a fly-eye lens pair. The above description mainly takes the first supplementary light as red light as an example. It should be limited to this, and the first supplementary light can also be green light, blue light, etc. In addition, the structure and position of the filter device can also be set according to the actual needs of the color of the light passing through the filter device and the direction of the common outgoing light path. For example, the rotation axis of the filter wheel is different from that described in this specification. In the case of being coincident with or parallel to the rotation axis of the color wheel, the rotation axis of the filter wheel can also be set to form a certain angle, preferably 45°, with the rotation axis of the color wheel. Furthermore, the selective optical component can selectively transmit or/and reflect at least part of the received light according to the wavelength, polarization state or combination of the two of the light incident thereon. In addition, the combination of the reflection and transmission technical means of the excitation light and the subject light adopted in the above-mentioned optical path can be changed according to actual needs. For example, the total reflection sheet can be replaced by an X mirror. At this time, the excitation light can be It is reflected by the X mirror to the color wheel, and the received light can also be reflected by the X mirror to the reflector. In addition, an integrated transmissive color wheel and filter wheel may also be used. In this case, the first light guiding assembly further includes a reflective component arranged on the optical path of the received light for reflecting the received light to the filter wheel. In addition, the common emission mentioned above can be understood as two or more lights emitted at the same time, or more than one light is emitted in time sequence. The description of the common emission is mainly intended to explain the exit channel of each light are the same and should not be construed as limiting.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of patents of the present utility model. Any equivalent structure made using the description of the utility model and the contents of the accompanying drawings or directly or indirectly used in other related technical fields, All are deemed to be included in the patent protection scope of the present utility model.

Claims (16)

1. a kind of light-source system is it is characterised in that include exciting light sources, the first supplementary light source, the first smooth guide assembly, wavelength Conversion equipment and the second smooth guide assembly, wherein：

Described exciting light sources are used for sending exciting light；

Described first supplements light source is used for sending the first supplementary light；

Described first smooth guide assembly is used for guiding described exciting light to described Wavelength converter；

Described Wavelength converter is used for for described exciting light being converted into Stimulated Light, and by described Stimulated Light outgoing to described first Light guide assembly；

Described first smooth guide assembly is additionally operable to guide described Stimulated Light so that the second light guiding group described in described Stimulated Light directive Part；

At least part of part of described second smooth guide assembly is arranged at described Stimulated Light from the described first smooth guide assembly outgoing In light path afterwards；

Described second smooth guide assembly is used for guiding at least partly described Stimulated Light and described first to supplement one of light or two Person is so that the described first supplementary light and at least partly described Stimulated Light are from identical exit channel outgoing.

2. light-source system according to claim 1 it is characterised in that described first smooth guide assembly include light splitting part and Reflecting part, exciting light described in described light splitting part transmission/reflection/angle and corresponding reflection/transmission at least partly described Stimulated Light, institute State reflecting part and guide the second smooth guide assembly described in described at least part of Stimulated Light directive further.

3. light-source system according to claim 1 is it is characterised in that described second smooth guide assembly includes selectivity optics Part, the first supplementary light described in described selectivity opticses reflection/transmission, or the first supplementary light and phase described in reflection/transmission Answer transmission/reflection/angle at least partly described Stimulated Light.

4. light-source system according to claim 3 is it is characterised in that described selectivity opticses are reflection described first Supplement the optical filter of at least part of described Stimulated Light of light and transmission, or supplement light and not at least part of for reflection described first At least part of region of described Stimulated Light reflection arranges reflector plate or the polaroid of plated film, or arranges plated film or region for region The optical filter of setting polaroid.

5. light-source system according to claim 3 is it is characterised in that described second smooth guide assembly also includes being arranged at institute State first and supplement scattering part or/and even smooth part between light source and described selectivity opticses.

6. light-source system according to claim 3 is it is characterised in that described second smooth guide assembly also includes the second optically focused Lens, described second collecting lenses are described for converging to the be scattered part or/and even smooth part described first supplementary light Selectivity opticses, and the converging focal point of described first supplementary light is on described selectivity opticses.

7. light-source system according to claim 1 is it is characterised in that described light-source system also includes filtering apparatus, described Filtering apparatus are located between the described first smooth guide assembly and the second smooth guide assembly, or are located at described identical exit channel On.

8. light-source system according to claim 7 it is characterised in that described Wavelength converter be reflective colour wheel, institute Stating filtering apparatus is filter wheel, and described filter wheel is arranged on the periphery of described reflective colour wheel or inner circumferential and knot integral with one another Structure.

9. light-source system according to claim 8 is it is characterised in that described second smooth guide assembly is located at described first light Between guide assembly and described filter wheel, or the downstream being located at the light path of Stimulated Light from filter wheel outgoing.

10. light-source system according to claim 7 it is characterised in that Wavelength converter be transmission-type colour wheel, described filter Electro-optical device is filter wheel, and described filter wheel is arranged with described transmission-type colour wheel split, at least portion of described second smooth guide assembly Sub-unit is located in the gap between described filter wheel and described transmission-type colour wheel.

11. light-source systems according to claim 10 it is characterised in that described filter wheel and described transmission-type colour wheel each The axis of rotation is parallel or overlaps.

12. light-source systems according to claim 7 are it is characterised in that described light-source system also includes dodging device, described Dodging device is located on described identical exit channel.

13. light-source systems according to claim 1 are it is characterised in that described light-source system also includes filtering apparatus and even Electro-optical device, described filtering apparatus are located between the two of which part of the described first smooth guide assembly, and described dodging device is located at On exit channel after described filtering apparatus for the described Stimulated Light, the described first supplementary light source and the second smooth guide assembly are located at On exit channel after described dodging device for the described Stimulated Light.

14. according to claim 1 light-source system it is characterised in that described first supplement light be HONGGUANG, in green glow or blue light One or more.

15. according to claim 3 light-source system it is characterised in that described first supplement light source include two, described two First supplementary light source sends the first supplementary light for HONGGUANG and green glow respectively, and described second smooth guide assembly also includes light splitting unit Part, described HONGGUANG and described green glow are through described beam splitter outgoing to described selectivity opticses.

A kind of 16. projector equipments are it is characterised in that described projector equipment includes the light source described in any one of claim 1 to 15 System.