CN104808273B - Optical wavelength converter and light source system suitable for same - Google Patents

Abstract

The present invention relates to an optical wavelength converter, which is suitable for converting light of a first wavelength band and includes a first substrate, a first wavelength conversion material and a second substrate, wherein the first substrate has a first section. The first wavelength conversion material is arranged in the first section to convert the light of the first wavelength band into light of a second wavelength band, and the first section reflects the light of the second wavelength band. The second substrate is arranged adjacent to the first substrate and has a second section, wherein the second section and the first section are arranged alternately to allow the light of the first wavelength band to penetrate. In this way, the laser spot can uniformly and stably penetrate the optical wavelength converter of the present invention, which can not only effectively and accurately control the optical wavelength converter, but also avoid the ratio error of the light spot, thereby stabilizing the light output intensity and chromaticity, and achieving the effect of improving the light output quality.

Description

Optical wavelength converter and its applicable light source system

technical field

The present invention relates to an optical wavelength converter, in particular to an optical wavelength converter providing a stable and high-quality light source and an applicable light source system.

Background technique

Optical wavelength converter is an optical transduction element, which is mainly used to convert more than one wavelength of light to generate specific visible light wavelength as a light source. It is usually used in special lighting, such as spotlights, headlights, display light sources or projector display. Like wait.

Generally speaking, the traditional optical wavelength converter is based on the fluorescent pink wheel, which aims to cooperate with the laser light source and convert the laser light into colored light with different wavelengths. projection. Under high power operation, the light wavelength conversion efficiency of the fluorescent pink wheel can greatly improve the photoelectric conversion and lumen output of the projector, and has become an important light source for the new generation of projection technology in recent years.

Please refer to FIG. 1A , which is a schematic diagram showing the structure of a conventional optical wavelength converter. As shown in FIG. 1A , a conventional optical wavelength converter 1 is coupled with a motor 2 , and phosphor powder 4 is coated on a partial area 30 of a substrate 3 . For example, the more common traditional optical wavelength converters can be divided into two types: transmissive and reflective based on the type of substrate. Please refer to FIG. 1B and FIG. The schematic diagram of its optical path and the schematic diagram of a reflective traditional optical wavelength converter and its optical path. As shown in FIG. 1B , the substrate 3 of the transmissive traditional optical wavelength converter 1 mainly uses spectroscopic glass, so that the incident light I1 directly penetrates the substrate 3 and is excited by the phosphor 4 to generate and output the excited light O1, wherein The traveling directions of the incident light I1 and the excited light O1 are the same. As shown in FIG. 1C, the substrate 3 of the reflective traditional light wavelength converter 1 mainly adopts a highly reflective substrate such as mirror glass or bright aluminum, so that after the incident light I2 is excited by the phosphor powder 4 to generate the excited light O2, The excited light O2 is output through the reflection of the substrate 3, wherein the incident direction of the incident light I2 is opposite to the output direction of the excited light O2.

In view of the demand for high-lumen projectors, the high optical power of lasers combined with phosphors often overheats the substrate of the traditional optical wavelength converter of the transmission type, resulting in a decrease in the wavelength conversion efficiency of the phosphors, which in turn affects the overall light output. Therefore, the current market is based on Reflective traditional optical wavelength converters are the mainstream.

Currently, common projectors on the market mainly use blue lasers and reflective traditional optical wavelength converters. Please refer to FIG. 2 , which shows a schematic diagram of a traditional optical wavelength converter with a notch. As shown in Figure 2, in order to make the light source system directly use the blue light source as the blue light source, a gap 31 is usually designed on the substrate 3 of the traditional optical wavelength converter 1 to control the penetration of the blue laser through the gap 31, and by The size of the notch 31 can adjust the ratio of blue laser reflection. However, because the traditional optical wavelength converter 1 is a rotating part, it is difficult to accurately control the swing amount of the motor 2 at a high speed, and when the radius of the substrate 3 is large , is often accompanied by the error problem of the proportion of the blue light spot and the gap 31 and the rotation balance problem of the traditional optical wavelength converter 1, resulting in unstable blue light output intensity and chromaticity, seriously affecting the light output quality.

Therefore, it is necessary to develop an optical wavelength converter that provides a stable and high-quality light source and an applicable light source system to improve the above-mentioned shortcomings and problems, and further enhance its industrial practicability.

Contents of the invention

The main purpose of the present invention is to provide an optical wavelength converter and its applicable light source system to solve the problem that traditional optical wavelength converters cannot accurately control the swing amount at high speeds, and blue light spots are prone to occur when the substrate radius is large. Ratio error and rotation balance problems lead to disadvantages such as poor light quality caused by unstable blue light output intensity and chromaticity.

Another object of the present invention is to provide an optical wavelength converter and its applicable light source system. With the setting of the second substrate, the laser spot can penetrate the optical wavelength converter uniformly and stably, which can not only effectively and accurately Controlling the light wavelength converter can avoid the ratio error of the light spot, thereby stabilizing the light intensity and chromaticity, and achieving the effect of improving the light quality.

Another object of the present invention is to provide an optical wavelength converter and its applicable light source system. The first section of the first substrate and the second section of the second substrate are alternately arranged to optimize the rotation balance. Furthermore, the deflection or vibration of the optical wavelength converter is avoided to provide a complete and stable light source output.

In order to achieve the above object, a preferred embodiment of the present invention is to provide an optical wavelength converter suitable for converting light in a first wavelength band, comprising: a first substrate having at least a first section; a first A wavelength converting material is arranged in the first section to convert the light of the first wavelength band into light of a second wavelength band, and the first section reflects the light of the second wavelength band; a second substrate is adjacent to the The first substrate has at least one second section, wherein the second section and the first section are arranged alternately so as to allow light in the first wavelength band to pass through.

To achieve the above object, another preferred embodiment of the present invention is to provide a light source system, including: a solid-state light-emitting element, structured to emit light in a first wavelength band; an optical wavelength converter, including: a first substrate , having at least one first section; a first wavelength conversion material disposed on the first section for converting the first wavelength band light into a second wavelength band light, and the first section reflects the second wavelength Waveband light to a first optical path; a second substrate, adjacent to the first substrate and having at least one second section, wherein the second section and the first section are arranged alternately, so that the first The wavelength band light passes through the second section and is output to a second light path.

Description of drawings

FIG. 1A shows a schematic diagram of the structure of a conventional optical wavelength converter.

FIG. 1B shows a schematic diagram of a pass-through traditional optical wavelength converter and its optical path.

FIG. 1C shows a schematic diagram of a reflective conventional optical wavelength converter and its optical path.

Figure 2 shows a schematic diagram of a conventional optical wavelength converter with notches.

FIG. 3A is a schematic diagram showing the structure of an optical wavelength converter according to a preferred embodiment of the present invention.

FIG. 3B shows the structure diagram of the light source system of the preferred embodiment of the present invention.

FIG. 4 shows a schematic diagram of the second substrate of the optical wavelength converter of the present invention and the transmission spectrum of the spectroscope on the first optical path of the light source system.

FIG. 5A shows a schematic structural diagram of an optical wavelength converter according to another preferred embodiment of the present invention.

FIG. 5B shows a structural diagram of a light source system in another preferred embodiment of the present invention.

FIG. 6A shows a schematic structural diagram of an optical wavelength converter according to another preferred embodiment of the present invention.

FIG. 6B shows a structure diagram of a light source system in another preferred embodiment of the present invention.

FIG. 7A shows a schematic structural diagram of an optical wavelength converter according to another preferred embodiment of the present invention.

FIG. 7B shows a structure diagram of a light source system in another preferred embodiment of the present invention.

Wherein, the reference signs are explained as follows:

1: Traditional optical wavelength converter

2: Motor

3: Substrate

30: Some areas

31: Gap

4: Phosphor powder

5: Optical wavelength converter

51: First Substrate

511: first section

512: The first undertaking department

52: Second substrate

521: Second segment

522: The second undertaking department

53: The first wavelength conversion material

54: Fixed element

55: Second wavelength conversion material

56: The third wavelength conversion material

6: Light source system

61: Solid state light emitting element

62: The first beam splitter

63: Second beam splitter

64: First Mirror

65: Second mirror

7: Optical machine

F1, F2: Spectrum

G: green light

I1, I2: incident light

L1: the first band light

L2: second wave band light

L3: the third band light

L3': part of the third band light

L4: the fourth band light

O1, O2: stimulated light

P1: first optical path

P2: Second light path

P3: third light path

R: red light

S1: first surface

S2: second surface

Y: yellow light

detailed description

Some typical embodiments embodying the features and advantages of the present invention will be described in detail in the description in the following paragraphs. It should be understood that the present invention can have various changes in different aspects, all of which do not depart from the scope of the present invention, and the description and drawings therein are used as illustrations in nature rather than limiting the present invention .

Please refer to FIG. 3A and FIG. 3B , wherein FIG. 3A shows a schematic structural diagram of an optical wavelength converter according to a preferred embodiment of the present invention, and FIG. 3B shows a structure diagram of a light source system according to a preferred embodiment of the present invention. As shown in FIG. 3A and FIG. 3B, the optical wavelength converter 5 of the present invention is suitable for the light source system 6, and is structured to convert the first-band light L1 emitted by the solid-state light-emitting element 61 of the light source system 6. The optical wavelength converter 5 can be For example but not limited to a phosphor color wheel or a phosphor pink wheel, and includes a first substrate 51 , a second substrate 52 and a first wavelength conversion material 53 . The first substrate 51 has at least one first section 511, the first wavelength conversion material 53 is disposed on the first section 511, and is used to convert the first wavelength band light L1 into the second wavelength band light L2, and the first section 511 Reflecting the second wavelength band light L2 to the first light path P1. The second substrate 52 is adjacent to the first substrate 51 and has at least one second section 521, wherein the second section 521 is arranged alternately with the first section 511, so that the light L1 of the first wavelength band passes through the second section 521 And output to the second optical path P2. In short, during the rotation process of the optical wavelength converter 5, the light source system 6 of the present invention continuously makes the light L1 of the first wavelength band penetrate the second section 521 and output it to the second optical path P2, or makes the light L1 of the first wavelength band The light L1 is converted into the light L2 of the second wavelength band and output to the first optical path P1 by being reflected by the first section 511 , so that the time-division projection of the light L1 of the first wavelength band and the light L2 of the second wavelength band is uninterrupted. Therefore, through the arrangement of the second substrate 52 in the present invention, the laser spot can penetrate the optical wavelength converter 5 uniformly and stably, not only can effectively and accurately control the optical wavelength converter 5, but also can avoid the ratio error of the optical spot , so as to stabilize the light intensity and chromaticity, and achieve the effect of improving the light quality.

In some embodiments, each first segment 511 is disposed between adjacent second segments 521, or each second segment 521 is disposed between adjacent first segments 511, and the first The substrate 51 and the second substrate 52 are made of different materials, for example, the first substrate 51 is an aluminum substrate and the second substrate 52 is a glass substrate, and are spliced together to form a wheel-shaped body. In other words, the sum of the central angles corresponding to the first substrate 51 and the second substrate 52 is 360 degrees. In some other embodiments, the first substrate 51 has a first receiving portion 512, the second substrate 52 has a second receiving portion 522, and the first receiving portion 512 and the second receiving portion 522 are preferably respectively formed on the first substrate 51 and the centroid of the second substrate 52, but not limited thereto. Wherein, the optical wavelength converter 5 of the present invention further includes a fixing element 54, the fixing element 54 is connected with the first receiving portion 512 and the second receiving portion 522, and is used to fix the first receiving portion 512 and the second receiving portion 522, and The fixing method can be, for example, clamping or sticking, and the frame can be rotated coaxially after the fixing is completed.

According to the idea of the present invention, the thicknesses of the first substrate 51 and the second substrate 52 are the same or different, and the thickness value of each first substrate 51 or each second substrate 52 is greater than or equal to 0.1 mm and less than or equal to 2 mm, That is to say, the thickness values of the first substrate 51 and the second substrate 52 can be different, but they are all between 0.1 millimeter and 2 millimeters, but not limited thereto, and it mainly depends on the configuration of the substrates when rotating. Heavy, preferably should make the rotation can be stabilized.

Please refer to FIG. 3A and FIG. 3B again. The light source system 6 of the present invention includes a solid-state light emitting element 61 and the aforementioned optical wavelength converter 5 . The solid-state light-emitting element 61 is configured to emit light L1 of the first wavelength band, and the optical wavelength converter 5 is configured to convert the light L1 of the first wavelength band into the first wavelength conversion material 53 disposed on the first section 511 of the first substrate 51. second-waveband light L2, and reflect the second-waveband light L2 to the first optical path P1 through the first section 511, and use the second substrate 52 such as a glass substrate to make the first-waveband light L1 pass through the second substrate 52 of the second substrate 52. The second section 521 is output to the second optical path P2. Wherein, the first substrate 51 and its first section 511 are shiny metal plates or matte metal plates, the surface diffusion half angle of the first substrate 51 is greater than or equal to 0 degrees and less than or equal to 80 degrees, and the first substrate 51 is opposite to The reflectivity of light with a wavelength greater than or equal to 400 nanometers and less than or equal to 700 nanometers is preferably greater than 85%; in addition, the second substrate 52 and its second section 521 are glass substrates or diffused glass substrates, and the second substrate 52 The surface diffusion half angle is greater than or equal to 0 degree angle and less than or equal to 80 degree angle to homogenize the first waveband light L1. It should be understood and explained that the implementation of the above substrates can still be changed according to actual needs.

In this embodiment, the first wavelength band light L1 is blue light, and the first wavelength conversion material 53 includes at least one phosphor, that is, more than one phosphor powder to form the first wavelength conversion material 53 with different segments, so as to Converting the first-wavelength light L1 into red light R and green light G respectively can also be a single type of fluorescent agent, which is structured to convert the first-wavelength light L1 into yellow light Y including red R and green G bands. In a nutshell, in a preferred embodiment of the present invention, the first wavelength band light L1 is preferably blue light, and the second wavelength band light L2 is preferably red light R, green light G or yellow light Y. In addition, the first optical path P1 and the second optical path P2 of the light source system 6 of the present invention meet the third optical path P3 after being turned by the optical path design, and are sent to the optical machine 7 for back-end application, so the three primary colors (blue light) , red light, and green light) for projection, or three primary colors plus yellow light for projection, and time-sharing projection is preferred, which all belong to the teaching scope of the present invention.

Please refer to FIG. 4 together with FIG. 3A and FIG. 3B , wherein FIG. 4 shows the second substrate of the optical wavelength converter of the present invention and the transmission spectrum of the spectroscope on the first optical path of the light source system. In some other embodiments, as shown in FIG. 3A, FIG. 3B and FIG. 4, the light source system 6 of the present invention is provided with a first beam splitter 62 and a second beam splitter 63 on the first light path P1, wherein the first beam splitter The mirror 62 is disposed between the solid state light emitting device 61 and the light wavelength converter 5 , and the transmission spectrum of the first beam splitter 62 is shown as the spectrum F1 shown in FIG. 4 . Spectrum F1 shows that the first beam splitter 62 reflects light with a wavelength greater than 460 nm and transmits light with a wavelength less than or equal to 460 nm, so as to transmit the first-wavelength light L1 and reflect the second-wavelength light L2 . The second beam splitter 63 is arranged between the first beam splitter 62 and the optical engine 7, that is, it is arranged between the first optical path P1 and the third optical path P3 and is arranged between the second optical path P2 and the third optical path P3 In between, the first optical path P1 and the second optical path P2 are integrated and output to the third optical path P3. The penetration spectrum of the second beam splitter 63 is shown in the spectrum F2 shown in Figure 4, that is, the second beam splitter 63 makes the light with a wavelength greater than 460 nm penetrate and makes the light with a wavelength less than or equal to 460 nm reflect, mainly It is used to reflect the light of the first wavelength band L1 and transmit the light of the second wavelength band L2. In this embodiment, the light of the first wavelength band L1 is blue light, and the light of the second wavelength band L2 is other visible light with a wavelength greater than 460 nm.

In some other embodiments, the second substrate 52 of the optical wavelength converter 5 of the present invention can be selected from materials with optical functions or optical properties, such as optical attenuation sheets or optical filters, to be used for selecting, for example, a light wavelength of 445 nanometers When Mi’s solid-state light-emitting element 61 emits the first-band light L1, with the corresponding light source system architecture, the light color of the first-band light L1, which is blue-purple, can be adjusted to the standard Rec.709 blue light color rendering coordinates (0.15 ,0.06). Of course, in some other embodiments, the second substrate 52 may also use an optical attenuation film with an optical density (Optical Density, OD) value greater than or equal to 1 and less than or equal to 2, but it is not limited thereto.

However, in this embodiment, the solid-state light-emitting device 61 is preferably a laser device that emits light with a wavelength of about 445 nm, and is configured to emit blue and slightly purple colored light. The optical wavelength converter 5 further includes a second wavelength conversion material 55, and the second wavelength conversion material 55 is disposed on the second section 521 of the second substrate 52 to convert part of the light L1 of the first wavelength band into light of the third wavelength band L3, wherein the third waveband light L3 is preferably cyan light with a wavelength greater than or equal to 460 nm and less than or equal to 520 nm, and a main peak at 490 nm, but not limited thereto.

Please refer to FIG. 4 , FIG. 5A and FIG. 5B , wherein FIG. 5A shows a schematic structural diagram of the optical wavelength converter of this embodiment, and FIG. 5B shows a structure diagram of a light source system of this embodiment. In this embodiment, the second substrate 52 is made of a light attenuating film or a filter, and the solid-state light-emitting element 61 generates the first waveband light L1 with a wavelength of about 445 nanometers, and then excites the cyan fluorescence with a luminous peak at 490 nanometers. The powder produces the third waveband light L3, which is used for light color adjustment. Since the second substrate 52 is made of a light-transmitting material such as a light-attenuating film or a filter, the third-band light L3 used for light color adjustment can be designed to be output to the first optical path P1 or the second optical path after conversion. P2, in accordance with the structure of the light source system corresponding to the path, can combine the light through the second beam splitter 63 and output it to the optical machine 7 .

This embodiment illustrates the implementation when the third wavelength band light L3 is output to the first light path P1 after conversion. In this embodiment, the second substrate 52 is configured to only allow the color light with a wavelength of less than 460 nm to pass through. As shown in FIG. 5A and FIG. 5B, the optical wavelength converter 5 of the present invention is suitable for the light source system 6, and is structured to convert the first-band light L1 emitted by the solid-state light emitting element 61 of the light source system 6. The optical wavelength converter 5 can be For example but not limited to a phosphor color wheel or a phosphor pink wheel, and includes a first substrate 51 , a second substrate 52 and a first wavelength conversion material 53 . Wherein the light source system further includes a first reflector 64 and a second reflector 65, and the first reflector 64 and the second reflector 65 are sequentially arranged on the second optical path P2 and are located at the optical wavelength on the second optical path P2. The structure between the converter 5 and the second beam splitter 63 is configured to reflect the first wavelength band light L1 (such as blue light) and allow other colored light to pass through. The first substrate 51 and the first wavelength conversion material 53 of the optical wavelength converter 5 are the same as those of the foregoing embodiments, and will not be repeated here.

In this embodiment, the second substrate 52 is a filter, and the transmission spectrum of the second substrate 52 is as shown in the spectrum F1 shown in FIG. The transmittance is at least greater than 85%, and the transmittance of the second substrate 52 to light with a wavelength greater than or equal to 460 nm is at least less than 1%. The excited light L3 of the third wavelength band is reflected by the first beam splitter 62 to the second beam splitter 63 through the first light path P1 and then passes through. The first beamsplitter 62 adopts the F1 penetration spectrum of Figure 4, and is structured to make the wavelength less than 460 nanometers penetrate; the second beamsplitter 63 adopts the F2 penetration spectrum of Figure 4, and is structured to make the wavelength greater than 460 nanometers. Shade penetrates.

Since the second substrate 52 is a light-transmitting filter, the remaining part of the first wavelength band light L1 is output to the second optical path P2, and finally reflected to the second light splitter after passing through the first reflector 64 and the second reflector 65 mirror 63, and then the first wavelength band light L1 with a wavelength smaller than 460 nanometers is reflected to the third optical path P3, and finally the above-mentioned first wavelength band light L1 is combined with the third band light L3 passing through the second beam splitter 63 and enters The optical machine 7 can be adjusted to the blue light of the Rec.709 standard by the above-mentioned combination of light.

Please refer to FIG. 6A and FIG. 6B , wherein FIG. 6A shows a schematic structural diagram of an optical wavelength converter according to another preferred embodiment of the present invention, and FIG. 6B shows a structure diagram of a light source system according to another preferred embodiment of the present invention. As shown in Fig. 6A and Fig. 6B, another embodiment of the present invention shows that the third wavelength band light L3 is output to the second optical path P2 after conversion. In this embodiment, the optical wavelength converter of the present invention The first substrate 51, the second substrate 52, and the first wavelength conversion material 53 of 5, and the solid-state light emitting element 61, the first beam splitter 62, the second beam splitter 63, the first reflector 64, and the second reflector of the light source system 6 The mirror 65 is similar to the above-mentioned embodiments, and will not be repeated here, but the difference is that the second substrate 52 is configured to only transmit the colored light with a wavelength of less than 500 nm. In this embodiment, the second substrate 52 is a filter, and the transmission spectrum of the second substrate 52 is shown in the spectrum F1' shown in FIG. The transmittance of the light is at least greater than 85%, and the transmittance of the second substrate 52 to the light with a wavelength greater than or equal to 500 nm is at least less than 1%. The excited third-waveband light L3 and the remaining first-wavelength light L1 pass through the second substrate 52 and are combined into fourth-waveband light L4 to the second optical path P2 to the second beam splitter 63 and then reflected to the optical machine 7. The second beam splitter 63 adopts the F3 transmission spectrum in FIG. 4 , and is configured to reflect the colored light with a wavelength smaller than 500 nm.

Since the second substrate 52 is made of a light-transmitting material such as a light-attenuating film or a filter, part of the converted third-band light L3 (above 500 nm) is output to the first optical path P1 to the first beam splitter 62 , so the first beamsplitter 62 can adopt the F1' penetration spectrum in FIG. '(above 500nm) is not mixed with the first light path P1 and the first wavelength band light L1.

In this embodiment, the second wavelength conversion material 55 disposed on the second section 521 of the second substrate 52 mainly converts part of the first wavelength band light L1 into the third wavelength band light L3 and outputs it to the first optical path P1 and the second light path P1. Path P2, and then integrate the first waveband light L1 and the third waveband light L3 on the third light path P3, so as to adjust the hue of the first waveband light L1, and make the blue and slightly purple first waveband light L1 It is better to integrate with the cyan third-wavelength light L3 to make the blue of the first-wavelength light L1 closer to a pure color, but not limited thereto. In addition, since the optical properties of the second substrate 52 can directly transmit the third wavelength band light L3, the second wavelength conversion material 55 can be disposed on the first surface S1 of the second section 521 of the second substrate 52, or can be disposed On the second surface S2 of the second section 521 of the second substrate 52 , the second surface S2 is, for example, the back side of a fluorescent pink wheel or a fluorescent color wheel, but it is not limited thereto.

Please refer to FIG. 7A and FIG. 7B , wherein FIG. 7A shows a schematic structural diagram of an optical wavelength converter according to another preferred embodiment of the present invention, and FIG. 7B shows a structure diagram of a light source system according to another preferred embodiment of the present invention. The similarities between this embodiment and the foregoing embodiments will not be repeated here. The difference is that the optical wavelength converter 5 of this embodiment includes a third wavelength conversion material 56, and the third wavelength conversion material 56 is disposed on the second surface S2 of the second section 521 of the second substrate 52, for converting the first The first-wavelength light L1 is converted into the fourth-wavelength light L4, wherein the fourth-wavelength light L4 is preferably green light with a wavelength greater than or equal to 470 nm and less than or equal to 530 nm, but not limited thereto.

Since the green color light of the fourth waveband light L4 substantially contains part of the cyan color light, the second substrate 52 can adopt the combined transmission spectrum of the F1 transmission spectrum and the F3 transmission spectrum of FIG. The transmittance of light with a wavelength of less than or equal to 460 nm to light with a wavelength of greater than or equal to 500 nm is at least greater than 85%, and the transmittance of the second substrate 52 to light with a wavelength of 460 nm to 500 nm is at least less than 1%. According to this, the optical characteristics of the second substrate 52 can reflect the cyan light range of 500-530 nm in the fourth wavelength band light L4 to the second optical path P2, and on the other hand, it is used to adjust the fourth wavelength band light L4 of the first wavelength band light L1 tone (cyan light range 470-500nm) can pass through the second substrate 52 and output to the first light path P1, and then use the first spectroscope 62 to collect the F1 penetration spectrum in FIG. The four-band light L4 (cyan light range 470-500nm) is reflected to the second beam splitter 63, and then passes through the second beam splitter 63 to combine with the first-band light L1 from the second optical path P2 and go to the third optical path P3. Therefore, the third wavelength conversion material 56 is preferably disposed on the second surface S2 of the second section 521 of the second substrate 52 , such as the back of the fluorescent pink wheel or the phosphor color wheel, but not limited thereto.

In detail, after the first wavelength band light L1 is converted into the fourth wavelength band light L4 by the third wavelength conversion material 56, it is filtered by the second substrate 52, so that the cyan light in the fourth wavelength band L4 in the range of 470-500nm can pass through. The second substrate 52 is output to the first optical path P1, and the remaining part of the fourth wavelength band light L4, that is, part of the light in the range of 470-500nm and 500-520nm, passes through the second substrate 52 to output the second optical path P2, and then Go to the second beam splitter 63 through the first reflector 64 and the second reflector 65, the second beam splitter 63 will adopt the F2 penetration spectrum of the fourth figure, so that the wavelength of the remaining fourth band light L4 is greater than or equal to 460 nanometers The light rays of m penetrate through without entering the third light path P3. In other words, this embodiment mainly uses the third wavelength conversion material 56 disposed on the second surface S2 of the second section 521 of the second substrate 52 to convert the first wavelength band light L1 into the fourth wavelength band light L4 and output a wavelength range of 470 The light of ~500nm reaches the first optical path P1, and then integrates the first-wavelength light L1 and the above-mentioned fourth-wavelength light L4 with a wavelength range of 470-500nm on the third optical path P3, so as to adjust the color tone of the first-wavelength light L1 , and it is better to integrate the blue and slightly purple first wavelength band light L1 with the cyan fourth wavelength band light L4 so that the blue color of the first wavelength band light L1 is closer to a pure color, but it is not limited thereto.

To sum up, the present invention provides an optical wavelength converter and its applicable light source system. With the setting of the second substrate, the laser spot can penetrate the optical wavelength converter uniformly and stably, which can not only effectively and accurately Controlling the light wavelength converter can avoid the ratio error of the light spot, thereby stabilizing the light intensity and chromaticity, and achieving the effect of improving the light quality. In addition, by interlacing the first section of the first substrate and the second section of the second substrate, the rotation balance can be optimized, thereby avoiding the deflection or vibration of the optical wavelength converter, so as to provide a complete and stable light source output. At the same time, by selecting other wavelength conversion materials different from the first wavelength conversion material and setting them on the second section of the second substrate, the structure is configured to emit a third wavelength band for color mixing or light combination with the first wavelength band light The light makes it possible for the present invention to use non-pure color solid-state light-emitting elements as light sources to meet the actual needs of various light machines in a variety of ways, and is highly flexible in design.

Even though the present invention has been described in detail by the above-mentioned embodiments, various modifications can be devised by those skilled in the art without departing from what is intended to be protected by the appended claims.

Claims (20)

1. a kind of optical transponder unit, it is adaptable to change a first band light, including：

One first substrate, with least one first section；

One first wave length transition material, is arranged at first section, the first band light is converted into a second band light, And first section reflects the second band light；And,

One second substrate, is adjacent to the first substrate and with least one second section, wherein second section and firstth area Section is staggered, so that the first band light is penetrated,

Wherein, each first section is arranged between adjacent second section, or each second section be arranged at it is adjacent First section between.

2. optical transponder unit according to claim 1, the wherein first substrate and the second substrate are made with different material And a wheel-type body is spliced to form each other, and first section and the corresponding central angle summation of second section are 360 degree.

3. optical transponder unit according to claim 1, the wherein first substrate have one first carrier, second substrate tool There is one second carrier, and first carrier and second carrier are respectively formed in the first substrate and the second substrate Barycenter.

4. optical transponder unit according to claim 3, in addition to a retaining element, the retaining element and first carrier and Second carrier is connected, to fix first carrier and second carrier.

5. optical transponder unit according to claim 1, the wherein thickness of the first substrate and the second substrate are identical or phase It is different, and the thickness value of each first substrate or each second substrate is more than or equal to 0.1 millimeter and less than or equal to 2 millimeters.

6. optical transponder unit according to claim 1, the wherein first substrate are a bright face metallic plate or a cloudy surface metallic plate, The diffusion into the surface half-angle of the first substrate is more than or equal to 0 degree of angle and less than or equal to 80 degree angles, and the first substrate is more than to wavelength It is more than 85% equal to 400 nms and less than or equal to the reflectivity of the light of 700 nms.

7. optical transponder unit according to claim 1, the wherein second substrate are a light decay piece, and the light of the second substrate is inhaled Receive density value and be more than or equal to 1 and less than or equal to 2.

8. optical transponder unit according to claim 1, the wherein second substrate are an optical filter, and the second substrate is to wavelength Penetrance less than the light of 460 nms is more than 85%, and the second substrate is more than or equal to wearing for the light of 460 nms to wavelength Saturating rate is less than 1%.

9. optical transponder unit according to claim 1, the wherein second substrate are an optical filter, and the second substrate is to wavelength Penetrance less than the light of 500 nms is more than 85%, and the second substrate is more than or equal to wearing for the light of 500 nms to wavelength Saturating rate is less than 1%.

10. optical transponder unit according to claim 1, the wherein second substrate are an optical filter, and the second substrate is to ripple The penetrance of the long light for being more than or equal to 500 nms less than or equal to 460 nms and wavelength is more than 85%, and the second substrate pair Wavelength is less than 1% between the penetrance of 460 nms to the light of 500 nms.

11. optical transponder unit according to claim 1, in addition to a second wave length transition material, and second wave length conversion Material is arranged at second section of the second substrate, the first band light is converted into one the 3rd band of light, wherein should 3rd band of light is that wavelength is more than or equal to 460 nms and less than or equal to 520 nms, and major peaks are the cyan light of 490 nms.

12. optical transponder unit according to claim 11, wherein the second wave length transition material are arranged at second section One first surface or a second surface.

13. optical transponder unit according to claim 1, in addition to one the 3rd material for transformation of wave length, and the 3rd wavelength convert Material is arranged at a second surface of second section of the second substrate, the first band light is converted into one the 4th ripple Duan Guang, wherein the 4th band of light are that wavelength is more than or equal to 470 nms and less than or equal to the green light of 530 nms.

14. in optical transponder unit according to claim 13, wherein the 4th band of light, wavelength is more than or equal to 470 nms simultaneously Coloured light less than or equal to 500 nms is closed with the first band finishing.

15. a kind of light-source system, including：

One solid-state light emitting element, framework is in sending a first band light；And,

One optical transponder unit, including：

One first substrate, with least one first section；

One first wave length transition material, is arranged at first section, the first band light is converted into a second band light, And first section reflects the second band light to one first light path；And,

One second substrate, is adjacent to the first substrate and with least one second section, wherein second section and firstth area Section is staggered, so that the first band light penetrates second section and exported to one second light path,

Wherein, each first section is arranged between adjacent second section, or each second section be arranged at it is adjacent First section between.

16. light-source system according to claim 15, also with one the 3rd light path, be arranged at first light path and this second On light path, and first light path and second light path meet at the 3rd light path, by the first band light and should The light path of second band finishing merga pass the 3rd is exported to a ray machine.

17. light-source system according to claim 16, in addition to：

One first spectroscope, is arranged between the solid-state light emitting element and the optical transponder unit, with framework in making the first wave Duan Guang is penetrated and is reflected the second band light；And

One second spectroscope, is arranged between first spectroscope and the ray machine, so that framework is in the reflection first band light and makes The second band light is penetrated, and first light path and second light path are integrated and exported to the 3rd light path.

18. light-source system according to claim 17, wherein first spectroscope make wavelength be more than the light reflection of 460 nms simultaneously Wavelength is set to be less than or equal to the light penetration of 460 nms, second spectroscope makes light penetration of the wavelength more than 460 nms and reflection Wavelength is less than or equal to the light of 460 nms.

19. light-source system according to claim 18, wherein the first band light are blue light, and the second band light is that wavelength is big In the visible ray of 460 nms.

20. light-source system according to claim 17, in addition to one first speculum and one second speculum, first speculum And second speculum be sequentially arranged on second light path and on second light path be located at the optical transponder unit and Between second spectroscope, so that framework is in the reflection first band light and penetrates other coloured light.