CN119103498A

CN119103498A - Lighting modules and automobiles

Info

Publication number: CN119103498A
Application number: CN202310628897.1A
Authority: CN
Inventors: 鲁宁; 罗宇哲
Original assignee: Shenzhen Yinwang Intelligent Technology Co ltd
Current assignee: Shenzhen Yinwang Intelligent Technology Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2024-12-10

Abstract

The present disclosure provides a lamp module and a car, belonging to the field of lamp technology. The lamp module includes a light source module, a reflector, a spatial light modulator, a lens and a driving device; the light source module is used to emit a light beam to the reflector, the reflector is used to reflect the incident light beam to the spatial light modulator, and the spatial light modulator is used to transmit the incident light beam to the lens; the lamp module has multiple working modes, the reflector has multiple reflecting surfaces, and the reflecting surfaces correspond to the working modes one by one, and the driving device is used to drive the reflector to move so that the light beam emitted by the light source module is incident on different reflecting surfaces. The use of the present disclosure can reduce energy loss and relieve the heat dissipation pressure of the lamp module.

Description

Lamp module and automobile

Technical Field

The disclosure relates to the technical field of lamps, in particular to a lamp module and an automobile.

Background

The lamp module can be an intelligent lamp module, and can be an intelligent car lamp module applied to an automobile.

For example, during night driving, the light module may switch to a lighting mode, and during an entertainment scene, such as outdoor camping, the light module may switch to a projection mode, where the light module is used as a projector.

The lamp module emits non-uniform light beams outwards in a lighting mode, for example, light beams with central positions brighter than edge positions are emitted outwards, and emits uniform light beams outwards in a projection mode.

Therefore, the lamp module switches the working mode, that is, switches the light distribution of the light beam emitted outwards, and the current lamp module mainly switches the light distribution through the spatial light modulator inside the lamp module. The spatial light modulator is usually a digital micro-mirror device (DMD), which is one type of optical switch, and the principle of the DMD is to control the opening and closing and the opening and closing time length of each micro-mirror in each frame to form different light distribution effects. For example, in the illumination mode, the micromirrors corresponding to the center positions of the light outlets may be controlled to be in an on state so that light reflected by the micromirrors enters the light outlets, and the micromirrors corresponding to the edge positions of the light outlets may be controlled to be in an off state so that light reflected by the micromirrors does not enter the light outlets, so that the center positions of the light beams are brighter than the edge positions.

The micromirror in the off state in the DMD reflects the incident light to other components except the light outlet, and the light is incident to other components and absorbed by the components, which will cause energy loss.

Disclosure of Invention

The disclosure provides a lamp module and car, can solve the light distribution of lamp module among the correlation technique, mainly adjust by spatial light modulator, and lead to the problem of energy loss, technical scheme is as follows:

in one aspect, a luminaire module is provided that includes a light source module, a reflector, a spatial light modulator, a lens, and a driving device.

The light source module is used for emitting light beams to the reflecting mirror, the reflecting mirror is used for reflecting the incident light beams to the spatial light modulator, and the spatial light modulator is used for transmitting the incident light beams to the lens.

In the solution shown in the present disclosure, the spatial light modulator may be a reflective spatial light modulator, which is configured to reflect an incident light beam to a lens. Alternatively, the spatial light modulator may be a transmissive spatial light modulator for transmitting an incident light beam to a lens. In this embodiment, the spatial light modulator is a reflective spatial light modulator or a transmissive spatial light modulator is not specifically limited, and may be flexibly selected according to practical situations.

The lamp module is provided with a plurality of working modes, the reflecting mirror is provided with a plurality of reflecting surfaces, the reflecting surfaces are in one-to-one correspondence with the working modes, and the driving device is used for driving the reflecting mirror to move so that light beams emitted by the light source module are incident to different reflecting surfaces.

According to the scheme disclosed by the disclosure, the reflecting mirror of the lamp module is provided with a plurality of reflecting surfaces, and the reflecting surfaces correspond to the working modes of the lamp module one by one, so that the light distribution of the light beam reflected by the reflecting surfaces is relatively close to the light distribution of the corresponding working modes.

For example, when the working mode is an illumination mode, the driving device can drive the reflector to move, and the first reflecting surface corresponding to the illumination mode is switched to be positioned on the light emitting path of the light source module, so that the light beam emitted by the light source module is reflected by the first reflecting surface, and the formed light distribution effect corresponds to the illumination mode, for example, the light distribution effect is bright in the center and dark in the edge.

For example, when the working mode is the projection mode, the driving device can drive the reflector to move, and the second reflecting surface corresponding to the projection mode is switched to be positioned on the light emitting path of the light source module, so that the light beam emitted by the light source module is reflected by the second reflecting surface, the formed light distribution effect corresponds to the projection mode, and if the light distribution effect is equivalent to the brightness of the center and the edge, the light distribution is uniform.

Therefore, the light distribution effect of the light beam can be almost not adjusted by the spatial light modulator or the spatial light modulator can be finely adjusted in the illumination mode, so that most of the micromirrors of the spatial light modulator can be in an on state, and only a small part of the micromirrors are in an off state. In the projection mode, the spatial light modulator only needs to control the switch of the micromirror according to the projected picture.

The micro mirror in the open state transmits incident light to the lens for normal use, and the micro mirror in the closed state transmits the incident light to other components outside the lens for absorption to result in energy loss.

Therefore, the lamp module can reduce the number of the micromirrors in the off state in the illumination mode, so that the energy loss can be reduced.

In addition, when the lamp module is in an illumination mode, once most of the micromirrors are in an on state, the energy absorbed by other components except the lens is less, and the generated heat is low, so that the heat dissipation pressure of the lamp module can be relieved.

In one possible implementation, the facets of the different reflective surfaces are different.

The surface shape is a type to which the reflection surface belongs, and may include a spherical surface shape, an aspherical surface shape, a free-form surface shape, and the like.

In the solution shown in the present disclosure, the surface form of one reflecting surface may be an aspherical surface form, and the surface form of the other reflecting surface may be a free-form surface form.

In one possible implementation, the two reflective surfaces of the same surface type have different surface type parameters.

The surface type parameter is a parameter in a surface type formula for representing the surface type, for example, the surface type formula has a curvature radius and a high-order coefficient.

In the solution shown in the present disclosure, the surface types of the two reflecting surfaces are the same, for example, both are aspherical surface types, or both are free-form surface types, but the surface type parameters in the surface type formulas characterizing the two reflecting surfaces are different. For example, two reflecting surfaces which are aspherical surfaces are different in radius of curvature and higher-order coefficient. For example, two reflection surfaces which are free-form surface surfaces are different in radius of curvature and higher-order coefficient.

In one possible implementation manner, the working modes of the lamp module include an illumination mode and a projection mode, and the plurality of reflecting surfaces include a first reflecting surface and a second reflecting surface, wherein the first reflecting surface corresponds to the illumination mode, and the second reflecting surface corresponds to the projection mode.

In the scheme shown in the disclosure, the light beam emitted by the light source module is incident to the first reflecting surface and is reflected by the first reflecting surface, and the formed light distribution is relatively close to the light distribution of the illumination mode. The light beam emitted by the light source module is incident on the second reflecting surface and is reflected by the second reflecting surface, and the formed light distribution is relatively close to the light distribution of the projection mode, for example, the light distribution of the projection mode is uniform light, and the intensity of the light beam at the central position and the edge position is basically equivalent.

Therefore, the light distribution of the lamp module is adjusted through the first reflecting surface, so that most of micromirrors of the spatial light modulator are in an open state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

In one possible implementation, the illumination modes are one or more, the first reflecting surface is one or more, and one first reflecting surface corresponds to one illumination mode.

For example, the illumination mode is a high beam illumination mode, and the mirror has a first reflecting surface corresponding to the high beam illumination mode.

For example, the illumination mode is a low beam illumination mode, and the reflector has a first reflecting surface corresponding to the low beam illumination mode.

For example, the illumination mode is a light blanket illumination mode, then the mirror has a first reflective surface corresponding to the light blanket illumination mode.

For example, the illumination modes include a high beam illumination mode and a low beam illumination mode, and then the mirror has two first reflective surfaces, one corresponding to the high beam illumination mode and the other corresponding to the low beam illumination mode.

For example, the illumination modes include a high beam illumination mode and a blanket illumination mode, and then the mirror has two first reflective surfaces, one corresponding to the high beam illumination mode and the other corresponding to the blanket illumination mode.

For example, the illumination modes include a low beam illumination mode and a blanket illumination mode, and then the reflector has two first reflective surfaces, one corresponding to the low beam illumination mode and the other corresponding to the blanket illumination mode.

For example, the illumination modes include a high beam illumination mode, a low beam illumination mode, and a blanket illumination mode, and then the mirror has three first reflective surfaces, one corresponding to the high beam illumination mode, one corresponding to the low beam illumination mode, and the other corresponding to the blanket illumination mode.

In one possible implementation, the illumination mode is one, the first reflective surface is located on a first side of the mirror, and the second reflective surface is located on a second side of the mirror, wherein the first side and the second side are located opposite to each other.

The illumination mode is, for example, a high beam illumination mode, and then the light beam emitted by the light source module is incident on the first reflecting surface and reflected by the first reflecting surface, and the formed light distribution is relatively close to the light distribution of the high beam illumination mode.

For example, when the illumination mode is a low beam illumination mode, the light beam emitted by the light source module is incident on the first reflecting surface and reflected by the first reflecting surface, and the formed light distribution is relatively close to the light distribution of the low beam illumination mode.

For example, the illumination mode is a light blanket illumination mode, and then the light beam emitted by the light source module is incident on the first reflection surface and reflected by the first reflection surface, and the formed light distribution is relatively close to the light distribution of the light blanket illumination mode.

In the scheme shown in the disclosure, the reflecting mirror is provided with a first reflecting surface and a second reflecting surface which are opposite, and the driving device can drive the reflecting mirror to rotate so as to switch the first reflecting surface or the second reflecting surface, and the reflecting mirror is positioned on an optical path between the light source module and the spatial light modulator.

For example, in the illumination mode, the driving device drives the reflecting mirror to rotate until the first reflecting surface is positioned on the light path between the light source module and the spatial light modulator, and the light distribution of the lamp module is adjusted through the first reflecting surface, so that most of the micromirrors of the spatial light modulator are in an open state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

In one possible implementation, the illumination modes are two, and the first reflecting surfaces are two;

One of the first reflecting surfaces is positioned on a first side of the reflecting mirror, the second reflecting surface is positioned on a second side of the reflecting mirror, the other of the first reflecting surfaces is positioned on a third side of the reflecting mirror, wherein the first side is opposite to the second side in position, and the second side is adjacent to the third side in position.

In the solution shown in the present disclosure, the second reflecting surface and the two first reflecting surfaces are located on different sides of the reflecting mirror, and then the driving device may drive the reflecting mirror to rotate so as to switch the different reflecting surfaces, and the three reflecting surfaces are located on the optical path between the light source module and the spatial light modulator.

Wherein the operating modes comprise two lighting modes, for example, the operating modes comprise a high beam lighting mode and a low beam lighting mode.

Then, in the high beam illumination mode, the driving device drives the reflecting mirror to rotate to a first reflecting surface corresponding to the high beam illumination mode, the first reflecting surface is positioned on a light path between the light source module and the spatial light modulator, and the light distribution of the lamp module is adjusted to be close to that of the high beam illumination mode, so that most of the micromirrors of the spatial light modulator are in an on state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

Under the low beam illumination mode, the driving device drives the reflecting mirror to rotate to a first reflecting surface corresponding to the low beam illumination mode, the first reflecting surface is positioned on a light path between the light source module and the spatial light modulator, and the light distribution of the lamp module is adjusted through the first reflecting surface and is close to that of the low beam illumination mode, so that most of micromirrors of the spatial light modulator are in an on state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

In one possible embodiment, the different reflecting surfaces are located on opposite sides of the mirror, and the drive means are for driving the mirror in a rotational movement.

In the solution shown in the present disclosure, for example, the reflector has two reflecting surfaces, where the two reflecting surfaces are opposite, and then the driving device may drive the reflector to rotate to switch different reflecting surfaces, and the reflecting surfaces are located on the optical path between the light source module and the spatial light modulator, so that the light beam emitted by the light source module is incident on the different reflecting surfaces.

For another example, the reflecting mirror has more than two reflecting surfaces, which may be arranged along the circumferential direction of the reflecting mirror, i.e. the reflecting surfaces are located at different sides of the reflecting mirror, and the driving device may drive the reflecting mirror to rotate so as to switch different reflecting surfaces, and the reflecting surfaces are located on the optical path between the light source module and the spatial light modulator, so that the light beam emitted by the light source module is incident on different reflecting surfaces.

In a possible implementation, the illumination mode is one, the first reflecting surface is one, and the first reflecting surface and the second reflecting surface are located on the same side of the reflector.

In the scheme shown in the disclosure, the reflecting mirror is provided with a first reflecting surface and a second reflecting surface which are arranged on the same side, and the driving device can drive the reflecting mirror to move in a translation mode so as to switch the first reflecting surface or the second reflecting surface, and the reflecting mirror is positioned on an optical path between the light source module and the spatial light modulator.

For example, in the illumination mode, the driving device drives the reflector to translate to the first reflecting surface located on the light path between the light source module and the spatial light modulator, and the light distribution of the lamp module is adjusted through the first reflecting surface, so that most of micromirrors of the spatial light modulator are in an open state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

The two first reflecting surfaces and the second reflecting surface are positioned on the same side of the reflecting mirror.

Then, in the high beam illumination mode, the driving device drives the reflecting mirror to move in a translational mode to a first reflecting surface corresponding to the high beam illumination mode, the first reflecting surface is positioned on a light path between the light source module and the spatial light modulator, and the light distribution of the lamp module is adjusted to be close to that of the high beam illumination mode, so that most of the micromirrors of the spatial light modulator are in an on state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

Under the low beam illumination mode, the driving device drives the reflector to move in a translational mode to a first reflecting surface corresponding to the low beam illumination mode, the first reflecting surface is positioned on a light path between the light source module and the spatial light modulator, and the light distribution of the lamp module is adjusted to be close to that of the low beam illumination mode, so that most of micromirrors of the spatial light modulator are in an on state, most of light beams emitted by the light source module can be emitted from the lens, energy loss is reduced, light rays outside the lens are reduced, and heat dissipation pressure of the lamp module is relieved.

In one possible implementation, the different reflecting surfaces are located on the same side of the mirror, and the driving means is used for driving the mirror in translational movement.

In the solution shown in the present disclosure, for example, the reflecting mirror has two reflecting surfaces, and the two reflecting surfaces are located on the same side of the reflecting mirror, and then the driving device may drive the reflecting mirror to move in a translational manner to switch different reflecting surfaces, and the reflecting surfaces are located on the optical path between the light source module and the spatial light modulator, so that the light beam emitted by the light source module is incident on the different reflecting surfaces.

For another example, the reflecting mirror has more than two reflecting surfaces, and the reflecting surfaces are located on the same side of the reflecting mirror, so that the driving device can drive the reflecting mirror to move in a translation manner to switch different reflecting surfaces, and the reflecting surfaces are located on the optical path between the light source module and the spatial light modulator, so that the light beam emitted by the light source module is incident on the different reflecting surfaces.

In one possible implementation manner, the first reflecting surface and the spatial light modulator are used for adjusting the light distribution of the lamp module to the light distribution of the illumination mode corresponding to the first reflecting surface.

In the scheme shown in the disclosure, in an illumination mode, the first reflecting surface and the spatial light modulator jointly adjust the light distribution of the lamp module to the light distribution of the illumination mode. For example, in the illumination mode, the light distribution of the lamp module is mainly adjusted by the first reflecting surface and is secondarily adjusted by the spatial light modulator. Therefore, the light distribution effect of the illumination mode can be better realized, the energy loss can be reduced, and the heat dissipation pressure of the lamp module is relieved.

In one possible implementation, the light source module includes a light source, a light bar, and a transmissive mirror;

The light source is used for emitting light beams to the light homogenizing rod, the light homogenizing rod is used for homogenizing the incident light beams, so that the light beams are uniformly transmitted to the transmission mirror, the transmission mirror is used for reducing the beam angle of the incident light beams, and the light beams with the reduced beam angle are transmitted to the reflection mirror.

The light source may be an LED lamp, for example, the light source module may include a circuit board, and the LED lamp as the light source is located on a surface of the circuit board.

Wherein the number of transmissive mirrors may be one or more.

According to the scheme disclosed by the disclosure, the light beam emitted by the light source can be incident to the light homogenizing rod, and after being subjected to homogenization treatment by the light homogenizing rod, the light beam is incident to the transmission mirror, and after the transmission mirror compresses and reduces the beam angle of the light beam, the light beam is concentrated and converged on the reflecting mirror.

Thus, the light source module composed of the light source, the light homogenizing rod and the transmission mirror can be called as a collimation light source module, and the concentrated and uniform light beams are emitted outwards and are incident on the reflection mirror.

On the other hand, still provide an automobile, the automobile includes above-mentioned lamps and lanterns module.

In the scheme shown in the disclosure, the reflecting mirror of the lamp module of the automobile is provided with a plurality of reflecting surfaces, and the reflecting surfaces are in one-to-one correspondence with the working modes of the lamp module, so that the light distribution of the light beam reflected by the reflecting surfaces is relatively close to the light distribution of the corresponding working modes.

Therefore, the lamp module can be almost adjusted without the spatial light modulator or can be finely adjusted in the illumination mode, so that most of the micromirrors of the spatial light modulator can be in an on state, and only a small part of the micromirrors are in an off state. In the projection mode, the spatial light modulator only needs to control the switch of the micromirror according to the projected picture.

Drawings

Fig. 1 is a schematic structural diagram of a lamp module provided in the present disclosure;

fig. 2 is a schematic structural diagram of a lamp module provided in the present disclosure;

fig. 3 is a schematic structural diagram of a lamp module provided in the present disclosure;

fig. 4 is a schematic structural diagram of a lamp module provided in the present disclosure;

fig. 5 is a schematic structural diagram of a lamp module provided in the present disclosure;

fig. 6 is a schematic structural diagram of a lamp module provided in the present disclosure;

Fig. 7 is a schematic structural diagram of a lamp module provided in the present disclosure;

FIG. 8 is a schematic view of a mirror structure provided by the present disclosure;

fig. 9 is a schematic structural diagram of a lamp module provided in the present disclosure;

Fig. 10 is a schematic structural diagram of a lamp module provided by the present disclosure.

Description of the reference numerals

1. 10 Parts of light source module, 11 parts of circuit board, 12 parts of light source, 12 parts of light homogenizing rod, 13 parts of transmission mirror.

2. Mirror, 21, reflecting surface, 211, first reflecting surface, 212, second reflecting surface.

3. Spatial light modulator, 4, lens.

Detailed Description

While the description of the present disclosure will be presented in conjunction with some embodiments, it is not intended that the features of this application be limited to only this embodiment. Rather, the purpose of the application described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the disclosure. The following description will contain numerous specific details in order to provide a thorough understanding of the present disclosure. The present disclosure may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the focus of the disclosure. It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

In the presently disclosed embodiments, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", "a third" and a fourth "may explicitly or implicitly include one or more such feature.

In the embodiment of the present disclosure, "and/or" is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate that a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In describing the embodiments of the present disclosure, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted" and "connected" should be interpreted broadly, and for example, "connected" may be detachably connected, or may be non-detachably connected, or may be directly connected, or may be indirectly connected through an intermediary. References to directional terms in the embodiments of the present disclosure, such as "upper", "lower", "left", "right", "inner", "outer", etc., are only with reference to the directions of the drawings, and thus, the directional terms are used in order to better and more clearly describe and understand the embodiments of the present disclosure, rather than to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present disclosure. "plurality" means at least two.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the disclosure. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

The embodiment relates to a lamp module, which can be an intelligent lamp module applied to an automobile. As shown in fig. 1, the lamp module mainly includes a light source module 1, a reflector 2, a spatial light modulator 3 and a lens 4, wherein an arrow in fig. 1 indicates a light propagation direction, the reflector 2 is located on an outgoing light path of the light source module 1, the spatial light modulator 3 is located on a reflection light path of the reflector 2, and the lens 4 is located on an optical path of the spatial light modulator 3.

The lens 4 is located on the optical path of the spatial light modulator 3, for example, as shown in fig. 1, the lens 4 is located on the reflection optical path of the spatial light modulator 3, and the spatial light modulator 3 acts as a reflection type spatial light modulator for reflecting the incident light beam to the lens 4. For another example, the spatial light modulator 3 may be a transmissive spatial light modulator, and the lens 4 is located on a transmission path of the spatial light modulator 3, and the spatial light modulator 3 is configured to transmit an incident light beam to the lens 4.

In this embodiment, the spatial light modulator 3 is not particularly limited, and may be flexibly selected according to practical situations.

In this way, the light beam emitted from the light source module 1 may be incident on the mirror 2, reflected by the mirror 2 to the spatial light modulator 3, and then transmitted to the lens 4 via the spatial light modulator 3, and emitted from the lens 4.

The light source module 1 includes a light source 11, and the light source 11 may be a light-emitting diode (LED) lamp.

For example, as shown in fig. 2, the light source module 1 may include a circuit board 10, and an LED lamp as a light source 11 is located on a surface of the circuit board 10.

In one example, since the beam angle of the light source 11 is relatively large, such as 180 degrees, in order to reduce the beam angle of the light source 11, the light beam emitted from the light source module 1 is converged into the reflecting mirror 2, and accordingly, as shown in fig. 1, the light source module 1 may further include a transmission mirror 13, where the transmission mirror 13 has a converging function, so that the beam angle of the light source 11 can be reduced.

The number of the transmission mirrors 13 may be one or more, and this embodiment is not limited thereto.

In one example, in order to make the light incident on the reflecting mirror 2 relatively uniform, correspondingly, as shown in fig. 2, the light source module 1 may further include a light homogenizing rod 12, where the light homogenizing rod 12 is located on an outgoing light path of the light source 11, and the transmitting mirror 13 is located on an outgoing light path of the light homogenizing rod 12.

Thus, the light source module 1 composed of the light source 11, the light homogenizing rod 12 and the transmission mirror 13 may be called a collimated light source module, and emits a concentrated and uniform light beam to the outside and is incident on the reflection mirror 2.

The reflecting mirror 2 is used for changing the path of the light path, so that the light beam emitted by the light source module 1 can enter the spatial light modulator 3, and illumination light is provided for the spatial light modulator 3.

The spatial light modulator 3 may be a digital micro-mirror device (DMD), among others.

In one example, the spatial light modulator 3 includes a plurality of micromirrors, one for each pixel, and by controlling each micromirror to rotate, a different image frame is formed, and the lens 4 can image the spatial light modulator 3, thereby performing projection and illumination.

For example, in the projection mode, the light fixture module emits a uniform light beam outwards, and the spatial light modulator 3 may be in a fully-opened state, that is, each micromirror is in an opened state, and the light beam incident on the spatial light modulator 3 is transmitted into the lens 4 and is projected onto the front projection screen via the lens 4.

For another example, in the illumination mode, the lamp module emits a non-uniform light beam, and a part of the micromirrors of the spatial light modulator 3 are in an on state (e.g., the micromirrors around the center position are in an on state), and a part of the micromirrors are in an off state (e.g., the micromirrors around the edge position are in an off state).

The micromirror in the on state can transmit light to the lens 4, and the micromirror in the off state transmits light to other members than the lens 4 and is absorbed by the members.

And once the light is absorbed by components other than the lens 4, a loss of energy will result.

In addition, the light-absorbing member also heats up, which in turn brings about a certain heat dissipation pressure for the lamp module.

In the lighting mode, the lamp module provided by the embodiment can reduce energy loss and weaken heat dissipation pressure of the lamp module.

In one example, the light fixture module has a plurality of operating modes, wherein the plurality of operating modes includes at least one lighting mode. For example, the operation modes of the lamp module comprise a projection mode and at least one illumination mode. For another example, the operation modes of the lamp module include a plurality of illumination modes.

The illumination modes can be a high beam illumination mode, a low beam illumination mode and a blanket illumination mode.

For example, the luminaire module may have one of a high beam lighting mode, a low beam lighting mode and a light blanket lighting mode.

As another example, the luminaire module may have any two of a high beam lighting mode, a low beam lighting mode, and a blanket lighting mode.

As another example, the luminaire module may have three of a high beam lighting mode, a low beam lighting mode, and a blanket lighting mode.

In an example, the lamp module may switch different operation modes by switching different reflection surfaces of the reflector 2, and accordingly, as shown in fig. 2 to 6, the reflector 2 may have a plurality of reflection surfaces 21, and the reflection surfaces 21 correspond to the operation modes one by one.

For switching the reflecting surfaces 21 of the reflector 2, correspondingly, as can be seen with reference to fig. 2 and 3, the luminaire module may further comprise driving means (not shown in the figures) for driving the reflector 2 in motion so that the light beams emitted by the light source module 1 are incident on the different reflecting surfaces 21 of the reflector 2.

For example, the driving device is configured to drive the mirror 2 to move to the reflective surface 21 corresponding to the current operation mode, and is located on the optical path between the light source module 1 and the spatial light modulator 3, so that the light beam emitted by the light source module 1 is incident on the reflective surface 21 corresponding to the current operation mode, and is reflected to the spatial light modulator 3 via the reflective surface 21.

For example, as shown in fig. 2 to 6, at least one first reflecting surface 211 is included in the plurality of reflecting surfaces 21 of the reflecting mirror 2, and the first reflecting surface 211 corresponds to an illumination mode. For example, the illumination modes are plural, the first reflection surfaces 211 are plural, and the first reflection surfaces 211 and the illumination modes are in one-to-one correspondence. The driving device is used for driving the reflecting mirror 2 to move to the first reflecting surface 211 corresponding to the current illumination mode, and is located on the optical path between the light source module 1 and the spatial light modulator 3, so that the light beam emitted by the light source module 1 is incident to the first reflecting surface 211 corresponding to the current illumination mode, and is incident to the spatial light modulator 3 through the first reflecting surface 211.

As another example, as shown in fig. 2 to 6, the plurality of reflecting surfaces 21 of the reflecting mirror 2 may further include a second reflecting surface 212, where the second reflecting surface 212 corresponds to the projection mode, and thus the driving device is further configured to drive the reflecting mirror 2 to move to the second reflecting surface 212 corresponding to the projection mode, and be located on the optical path between the light source module 1 and the spatial light modulator 3, so that the light beam emitted by the light source module 1 is incident on the second reflecting surface 212 and is incident on the spatial light modulator 3 via the second reflecting surface 212.

In one example, the light distribution for each mode of operation is different, e.g. the light distribution for the different illumination modes is different, and the light distribution in the projection mode is related to the projected image content, so that in the projection mode the luminaire module achieves the desired light distribution effect by the on-off state of the micromirrors in the spatial light modulator 3.

In the lighting mode, the light distribution effect of the lighting mode corresponding to the first reflecting surface 211 can be achieved through the first reflecting surface 211, and accordingly, the first reflecting surface 211 is used for adjusting the light distribution of the lighting module to the light distribution of the corresponding lighting mode.

For example, the light distribution characteristics of one illumination mode of the light fixture module are that the brightness near the center is relatively strong, and the brightness near the edge is relatively weak, so that the light reflected by the first reflecting surface 211 is realized by the surface design of the first reflecting surface 211 opposite to the illumination mode, most of the light is incident on the micro-mirror near the center of the spatial light modulator 3, and the small part of the light is incident on the micro-mirror near the edge of the spatial light modulator 3, so that the light distribution effect of the illumination mode can be achieved.

It can be seen that the light distribution effect of the illumination mode corresponding to the first reflecting surface 211 can be basically achieved by the light fixture module through the first reflecting surface 211, and then the micro-mirrors in the spatial light modulator 3 can be in a fully-opened state, or most micro-mirrors in the spatial light modulator 3 are in an opened state, and a small part of micro-mirrors are in a closed state. In this case, since the light beam directed to the members other than the lens 4 is greatly reduced compared with the case where the light distribution of the illumination mode is adjusted by the spatial light modulator 3 alone, most of the light beam emitted from the light source module 1 can be emitted from the lens 4 and used effectively, and further, the energy loss can be reduced.

In addition, as the light rays which are transmitted to other components except the lens are greatly reduced, the energy of the components except the lens for absorbing the light rays is reduced, and the generated heat is smaller, so that the heat dissipation pressure of the lamp module can be relieved.

In one example, since the first reflecting surface 211 has a design deviation, there is some ingress and egress from the actual effect in achieving the light distribution adjustment, the adjustment of the light distribution by the first reflecting surface 211 can be assisted by the spatial light modulator 3. Then, the first reflecting surface 211 and the spatial light modulator 3 are correspondingly used together to adjust the light distribution of the lamp module to the light distribution of the illumination mode corresponding to the first reflecting surface 211, where the first reflecting surface 211 may be primary and the spatial light modulator 3 may be secondary.

Therefore, the energy loss can be reduced, the heat dissipation pressure of the lamp module is relieved, and the light distribution requirements of all illumination modes can be met more ideally.

In an example, the operation modes of the lamp module may include an illumination mode and a projection mode, wherein the number of illumination modes is one, and accordingly, as shown in fig. 2 and 3, the plurality of reflecting surfaces 21 of the reflector 2 includes a first reflecting surface 211 and a second reflecting surface 212, and the number of first reflecting surfaces 211 is one.

Then, when the lamp module is operated in the illumination mode, the driving device can drive the reflector 2 to move until the first reflecting surface 211 is located on the optical path between the light source module 1 and the spatial light modulator 3, as shown in fig. 2. When the lamp module is operated in the projection mode, the driving device can drive the reflecting mirror 2 to move to the second reflecting surface 212 located on the optical path between the light source module 1 and the spatial light modulator 3, as shown in fig. 3.

In another example, the operation modes of the lamp module may include an illumination mode and a projection mode, where the number of illumination modes is plural, and then, the plurality of reflecting surfaces 21 of the reflector 2 includes a first reflecting surface 211 and a second reflecting surface 212, respectively, the number of the first reflecting surfaces 211 is plural, and the plurality of first reflecting surfaces 211 are different from each other.

For example, as shown in fig. 4 to 6, the operation modes of the lamp module include a projection mode and two illumination modes, and then the reflector 2 has two first reflecting surfaces 211 and one second reflecting surface 212. Fig. 4 illustrates that a first reflecting surface 211 corresponding to one illumination mode is located on an optical path between the light source module 1 and the spatial light modulator 3, fig. 5 illustrates that a second reflecting surface 212 corresponding to a projection mode is located on an optical path between the light source module 1 and the spatial light modulator 3, and fig. 6 illustrates that a first reflecting surface 211 corresponding to another illumination mode is located on an optical path between the light source module 1 and the spatial light modulator 3.

In one example, the driving means may drive the mirror 2 in a rotational movement such that a certain reflecting surface 21 is located on the optical path between the light source module 1 and the spatial light modulator 3.

For example, the reflecting surfaces of the reflecting mirror 2 are located on different sides of the reflecting mirror 2, and the driving means may drive the reflecting mirror 2 to rotate to realize the reflecting surface corresponding to each operation mode, which is located on the optical path between the light source module 1 and the spatial light modulator 3.

As an example, as shown in fig. 2 and 3, the mirror 2 has a first reflecting surface 211 and a second reflecting surface 212, the first reflecting surface 211 is located on a first side of the mirror 2, the second reflecting surface 212 is located on a second side of the mirror 2, wherein the first side and the second side of the mirror 2 are located opposite to each other, and then the driving means may implement the first reflecting surface 211 or the second reflecting surface 212 by driving the mirror 2 to rotate, on an optical path between the light source module 1 and the spatial light modulator 3.

As another example, as shown in fig. 4 to 6, the mirror 2 has two different first reflecting surfaces 211 and one second reflecting surface 212, one first reflecting surface 211 is located at a first side of the mirror 2, the other first reflecting surface 211 is located at a third side of the mirror 2, and the second reflecting surface 212 is located at a second side of the mirror 2, wherein the first side and the second side of the mirror 2 are located opposite to each other, and the second side and the third side are located adjacent to each other, and it is seen that the three reflecting surfaces 21 of the mirror 2 are located at three sides of the mirror 2, and then the driving means can realize one reflecting surface by driving the mirror 2 to rotate, which is located on the optical path between the light source module 1 and the spatial light modulator 3.

In another example, the driving means may also drive the mirror 2 in a translational motion so that a certain reflecting surface is located on the optical path between the light source module 1 and the spatial light modulator 3.

For example, as shown in fig. 7 to 10, the reflecting surfaces of the reflecting mirror 2 are located on the same side of the reflecting mirror 2, and then the driving device may drive the reflecting mirror 2 to translate to implement the reflecting surface corresponding to each operation mode, and is located on the optical path between the light source module 1 and the spatial light modulator 3.

As shown in fig. 8, the mirror 2 has a first reflecting surface 211 and a second reflecting surface 212, which are located on the same side of the mirror 2, and as shown in fig. 7, the direction of translation of the mirror 2 is the direction outside the paper in fig. 7.

As shown in fig. 9 and 10, the mirror 2 has a first reflecting surface 211 and a second reflecting surface 212, which are located on the same side of the mirror 2, and the direction of translation of the mirror 2 is the direction indicated by the dashed arrow in fig. 9 and 10.

Fig. 9 shows that the first reflecting surface 211 is located on the optical path between the light source module 1 and the spatial light modulator 3, and fig. 10 shows that the second reflecting surface 212 is located on the optical path between the light source module 1 and the spatial light modulator 3.

It should be noted that fig. 7 to 10 only illustrate the scheme in which the reflecting mirror 2 includes one first reflecting surface 211 and one second reflecting surface 212, and the scheme in which the reflecting mirror 2 includes more first reflecting surfaces 211 is also applicable, and the structure is similar and will not be repeated.

It should be noted that, in the scheme that the driving device drives the mirror 2 to move in a translational manner, the translational direction of the mirror 2 is not limited in particular, and different reflecting surfaces of the mirror 2 may be implemented by translation and may be located on the optical path between the light source module 1 and the spatial light modulator 3.

It should be noted that the above-mentioned driving means drive the mirror 2 in a rotational movement and in a translational movement to switch the reflecting surface on the optical path between the light source module 1 and the spatial light modulator 3, and in some possible embodiments the switching effect may also be achieved by a combined rotational and translational movement.

Therefore, the movement mode of the mirror 2 is not particularly limited in this embodiment, and it is sufficient to switch different reflection surfaces.

In one example, the reflective surfaces are different from each other, e.g., the first reflective surface 211 and the second reflective surface 212 are different, and the first reflective surface 211 is also different. The two reflection surfaces 21 may be different in surface shape, or the same in surface shape and different in surface shape parameters.

Each of the surface types may be represented using a corresponding surface type formula, for example, a spherical surface type may be represented using a spherical surface type formula, an aspherical surface type may be represented using an aspherical surface type formula, and a freeform surface type may be represented using a freeform surface type formula.

The surface type parameters are parameters in a surface type formula corresponding to the surface type, such as curvature radius and high-order coefficients.

For example, of the two reflection surfaces 21, one reflection surface 21 has an aspherical surface shape, and the other reflection surface 21 has a free-form surface shape, and the two reflection surfaces 21 are different from each other by the surface shape.

For another example, the surface shapes of the two reflection surfaces 21 are both aspherical surface shapes or are both free-form surface shapes, but the surface shape parameters in the surface shape formulas that characterize the two reflection surfaces 21 are different, for example, the curvature radius in the two aspherical surface shape formulas is different, the higher order coefficient is different, or the curvature radius in the two free-form surface shape formulas is different, the higher order coefficient is different.

As an example, in a case where the plurality of first reflecting surfaces 211 are different, the plurality of first reflecting surfaces 211 may be different, wherein the different first reflecting surfaces 211 may be different in surface shape, for example, the surface shape of one first reflecting surface 211 is an aspherical surface, and the surface shape of the other first reflecting surface 211 is a free-form surface.

As another example, it is also possible to implement a plurality of first reflective surfaces 211 that are different from each other, in which the different first reflective surfaces 211 have the same surface shape but different surface shape parameters.

For example, the surface types of the different first reflection surfaces 211 are all aspherical, but the surface type parameters of the different first reflection surfaces 211 are different. For another example, the surface types of the different first reflection surfaces 211 are free curved surfaces, but the surface type parameters of the different first reflection surfaces 211 are different.

In one example, since the first reflective surfaces 211 and the illumination modes are in one-to-one correspondence, each first reflective surface 211 is designed according to the light distribution of the corresponding illumination mode.

For example, in the design stage, each first reflecting surface 211 may first select a surface shape, such as an aspheric surface or a free-form surface, of the first reflecting surface 211, and then obtain the light distribution of the illumination mode corresponding to the first reflecting surface 211, for example, if the first reflecting surface 211 is intended to correspond to the high beam illumination mode, obtain a light spot of the high beam illumination mode, and extract the light intensities at various positions from the light spot, so as to obtain the light distribution of the high beam illumination mode. Then, the surface type parameters in the surface type formula corresponding to the selected surface type are adjusted, for example, the curvature radius and the higher order coefficient in the surface type formula are adjusted until the light distribution formed by the first reflection surface 211 is substantially coincident with the light distribution of the corresponding illumination mode.

Also, for the design of the second reflecting surface 212, the surface type parameters in the surface type formula of the second reflecting surface 212 are adjusted according to the light distribution required by the projection mode, so as to realize the light distribution formed by the second reflecting surface, which is basically consistent with the light distribution required by the projection mode.

In this embodiment, the reflecting mirror of the lamp module has a plurality of reflecting surfaces, and the reflecting surfaces are in one-to-one correspondence with the working modes of the lamp module, so that the light distribution of the light beam reflected by the reflecting surfaces is relatively close to the light distribution of the corresponding working modes.

The embodiment also provides an automobile, which may include the lamp module set described above, for example, a headlight of an automobile may include the lamp module set described above.

As described above, the reflecting mirror of the automobile has a plurality of reflecting surfaces, and the reflecting surfaces are in one-to-one correspondence with the working modes of the automobile, so that the light distribution of the light beam reflected by the reflecting surfaces is relatively close to the light distribution of the corresponding working modes.

The foregoing description of the embodiments is merely exemplary in nature and is not intended to limit the disclosure, so that any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the disclosure are intended to be included within the scope of the disclosure.

Claims

1. A lamp module, characterized in that it comprises a light source module (1), a reflector (2), a spatial light modulator (3), a lens (4) and a driving device;

The light source module (1) is used to emit a light beam to the reflector (2), the reflector (2) is used to reflect the incident light beam to the spatial light modulator (3), and the spatial light modulator (3) is used to transmit the incident light beam to the lens (4);

The reflector (2) has a plurality of reflective surfaces (21), the plurality of reflective surfaces (21) corresponding one to one with the working modes of the lamp module, and the driving device is used to drive the reflector (2) to move so that the light beam emitted by the light source module (1) is incident on different reflective surfaces (21).

2. The lamp module according to claim 1, characterized in that the different reflective surfaces (21) have different surface shapes.

3. The lamp module according to claim 1 is characterized in that the two reflecting surfaces (21) with the same surface shape have different surface parameters.

4. The lamp module according to any one of claims 1 to 3 is characterized in that the working mode of the lamp module includes a lighting mode and a projection mode, and the multiple reflection surfaces (21) include a first reflection surface (211) and a second reflection surface (212), the first reflection surface (211) corresponds to the lighting mode, and the second reflection surface (212) corresponds to the projection mode.

5. The lamp module according to claim 4, characterized in that the lighting mode is one or more, the first reflection surface (211) is one or more, and one first reflection surface (211) corresponds to one lighting mode.

6. The lamp module according to claim 5, characterized in that the lighting mode is one, and the first reflection surface (211) is one;

The first reflecting surface (211) is located on a first side of the reflecting mirror (2), and the second reflecting surface (212) is located on a second side of the reflecting mirror (2), wherein the first side and the second side are located opposite to each other.

7. The lamp module according to claim 5, characterized in that there are two lighting modes and there are two first reflection surfaces (211);

One of the first reflecting surfaces (211) is located on a first side of the reflecting mirror (2), the second reflecting surface (212) is located on a second side of the reflecting mirror (2), and another of the first reflecting surfaces (211) is located on a third side of the reflecting mirror (2), wherein the first side and the second side are opposite to each other, and the second side and the third side are adjacent to each other.

8. The lamp module according to claim 6 or 7, characterized in that the driving device is used to drive the reflector (2) to rotate.

9. The lamp module according to claim 5, characterized in that the lighting mode is one, the first reflection surface (211) is one, and the first reflection surface (211) and the second reflection surface (212) are located on the same side of the reflector (2).

10. The lamp module according to claim 5, characterized in that there are two lighting modes, there are two first reflection surfaces (211), and the two first reflection surfaces (211) and the second reflection surface (212) are located on the same side of the reflector (2).

11. The lamp module according to claim 9 or 10, characterized in that the driving device is used to drive the reflector (2) to move in translation.

12 . The lamp module according to claim 4 , wherein the lighting mode comprises at least one of a high beam lighting mode, a low beam lighting mode and a light blanket lighting mode.

13. The lamp module according to any one of claims 4 to 12, characterized in that the first reflecting surface (211) and the spatial light modulator (3) are used to adjust the light distribution of the lamp module to the light distribution of the lighting mode corresponding to the first reflecting surface (211).

14. The lamp module according to any one of claims 1 to 13, characterized in that the light source module (1) comprises a light source (11), a light homogenizing rod (12) and a transmission mirror (13);

The light source (11) is used to emit a light beam to the light homogenizing rod (12); the light homogenizing rod (12) is used to perform a homogenizing process on the incident light beam so that the light beam is uniformly transmitted to the transmission mirror (13); the transmission mirror (13) is used to reduce the beam angle of the incident light beam so that the light beam with the reduced beam angle is transmitted to the reflector (2).

15. An automobile, characterized in that the automobile comprises the lamp module according to any one of claims 1 to 14.