Light source apparatus and vehicle lamp

Abstract

The present application relates to the technical field of optical imaging, and discloses a light source apparatus and a vehicle lamp. The light source apparatus comprises a light-emitting module, a light modulator, a lens module, and a controller. A plurality of micro-mirrors comprised in the light modulator are rotatably arranged on an optical path in which a specified light beam is located. When the micro-mirrors are respectively located at a first rotation position and a second rotation position, the specified light beam forms a first reflected light beam and a second reflected light beam after being reflected by the micro-mirrors. The lens module is used for respectively imaging the first reflected light beam and the second reflected light beam to generate a first emergent light beam and a second emergent light beam, and angles of emergence of the first emergent light beam and the second emergent light beam respectively belong to a first angle interval and a second angle interval. Because the two emergent light beams exiting from the lens module correspond to different angles of emergence, the angle of emergence of the second emergent light beam can be expanded on the basis of the first emergent light beam, so as to expand the illumination angle of the vehicle lamp provided with the light source apparatus.

Description

Light source device and vehicle lamp TECHNICAL FIELD

[0001] The present application relates to the technical field of optical imaging, and more particularly to a light source device and a vehicle lamp. BACKGROUND

[0002] With the increasing popularity and development of vehicles, adaptive high beams are increasingly favored by consumers due to their intelligent headlight systems. Existing adaptive high beams can automatically adjust the brightness, illumination range and other parameters of the high beams according to changes in the road, weather and surrounding environment, so as to improve the safety of vehicles during driving.

[0003] Specifically, in order to realize the intelligent lighting of adaptive high beams, researchers will use digital light processing technology (DLP) in adaptive high beams. The core of DLP technology is a digital micro-mirror chip (DMD), which is composed of millions of micro-mirrors. Each micro-mirror can be individually controlled to deflect at an angle, thereby reflecting the light emitted by the light source to achieve intelligent lighting of the high beam.

[0004] However, the existing high beam has the problem of small field of view (FOV). SUMMARY

[0005] The present application provides a light source device and a vehicle lamp.

[0006] According to a first aspect of the present application, a light source device is provided, which comprises a light-emitting module, a light modulator, a lens module and a controller. The light-emitting module is configured to generate a specified light beam. The light modulator comprises a plurality of micro-mirrors, which are rotatably arranged on an optical path of the specified light beam. Each micro-mirror has a first rotation position and a second rotation position. When the micro-mirror is in the first rotation position, the specified light beam is reflected by the light modulator to form a first reflected light beam. When the micro-mirror is in the second rotation position, the specified light beam is reflected by the micro-mirror to form a second reflected light beam. The lens module is arranged on an optical path of the first reflected light beam and the second reflected light beam. The lens module is configured to image the first reflected light beam to generate a first exit light beam having an exit angle belonging to a first angle interval. The lens module is configured to image the second reflected light beam to generate a second exit light beam having an exit angle belonging to a second angle interval. The second angle interval does not overlap at least part of the first angle interval. The controller is electrically connected to the light modulator and is configured to control at least one micro-mirror to switch between the first rotation position and the second rotation position.

[0007] According to a second aspect of the present application, the present application further provides a light source device, which comprises a light emitting module, a reflector, a lens module and a controller. The light emitting module is configured to generate a specified light beam. The reflector is rotatably arranged on an optical path of the specified light beam. The reflector has a first rotation position and a second rotation position. When the reflector is in the first rotation position, the specified light beam is reflected by the reflector to form a first reflected light beam. When the reflector is in the second rotation position, the specified light beam is reflected by the reflector to form a second reflected light beam. The lens module is arranged on an optical path of the first reflected light beam and the second reflected light beam. The lens module is configured to image the first reflected light beam to generate a first exit light beam with an exit angle belonging to a first angle interval. The lens module is configured to image the second reflected light beam to generate a second exit light beam with an exit angle belonging to a second angle interval. The second angle interval does not overlap with at least part of the first angle interval. The controller is electrically connected with the reflector and is configured to control the reflector to switch between the first rotation position and the second rotation position, so that the first reflected light beam and the second reflected light beam are incident on the lens module in a time-division manner.

[0008] According to a third aspect of the present application, the present application further provides a vehicle lamp, which comprises a housing and the above-mentioned light source device. The light source device is arranged in the housing.

[0009] The present application provides a light source device and a vehicle lamp. The controller in the light source device is capable of controlling a plurality of micro-mirrors included in a light modulator to switch between a first rotation position and a second rotation position. When the micro-mirrors are rotated to the first rotation position, the exit angle of a first exit light beam formed by imaging via the lens module belongs to a first angle interval. When the micro-mirrors are rotated to the second rotation position, the exit angle of a second exit light beam formed by imaging via the lens module belongs to a second angle interval. The second angle interval does not overlap with at least part of the first angle interval.

[0010] Since the exit angles corresponding to the first exit light beam and the second exit light beam emitted from the lens module are at least partially different, the second exit light beam can play a role in expanding the exit angle on the basis of the first exit light beam. Therefore, when the light source device is applied to a vehicle lamp, the illumination angle of the vehicle lamp can be expanded, so as to improve the illumination effect of the vehicle lamp. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0012] FIG. 1 is a structural schematic diagram of a vehicle lamp according to an embodiment of the present application.

[0013] Fig. 2 is a structural schematic diagram of a light source device in the vehicle lamp shown in Fig. 1.

[0014] Fig. 3 is a structural schematic diagram of a light modulator in the light source device shown in Fig. 2.

[0015] Fig. 4 is a structural schematic diagram of a light emitting module in the light source device shown in Fig. 2.

[0016] Fig. 5 is another structural schematic diagram of a light source device in the vehicle lamp shown in Fig. 1.

[0017] Fig. 6 is a schematic diagram of an exit angle range corresponding to a first exit light beam and a second exit light beam according to an embodiment of the present application.

[0018] Fig. 7 is a structural schematic diagram of a lens module in the light source device shown in Fig. 5.

[0019] Fig. 8 is a schematic diagram of an energy intensity corresponding to a first exit light beam and a second exit light beam according to an embodiment of the present application.

[0020] Fig. 9 is still another structural schematic diagram of a light source device in the vehicle lamp shown in Fig. 1.

[0021] Fig. 10 is yet another structural schematic diagram of a light source device in the vehicle lamp shown in Fig. 1.

[0022] Fig. 11 is a structural schematic diagram of a lens module in the light source device shown in Fig. 10. DETAILED DESCRIPTION

[0023] In order to make the personnel in the technical field better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0024] Please refer to Fig. 1, the present application provides a light source device 100 and a vehicle lamp 200 configured with the light source device 100, the vehicle lamp 200 is used to provide road lighting and send driving signal (for example, turn signal) for vehicle. Specifically, the vehicle lamp 200 can be a high beam, for example, an adaptive high beam based on DLP technology.

[0025] In the embodiment, the vehicle lamp 200 can include the light source device 100 and a housing 210, wherein the light source device 100 is arranged in the housing 210, and the housing 210 serves to fix and protect the light source device 100. The light source device 100 is configured to generate a specified light beam L, and the specified light beam L can be emitted to the outside through a light exit window arranged on the housing 210.

[0026] Referring to FIG. 2 and FIG. 3, the first embodiment of the present application provides a light source device 100, which can include a light emitting module 10, a light modulator 30, a lens module 50, and a controller 70. The light emitting module 10 is configured to generate a specified light beam E. The light modulator 30 can include a plurality of micro-mirrors 310, which are rotatably arranged on an optical path of the specified light beam E. Each micro-mirror 310 has a first rotation position and a second rotation position. When the micro-mirror 310 is in the first rotation position, the specified light beam E is reflected by the micro-mirror 310 to form a first reflected light beam F1. When the micro-mirror 310 is in the second rotation position, the specified light beam E is reflected by the micro-mirror 310 to form a second reflected light beam F2. The second reflected light beam F2 and the first reflected light beam F1 do not coincide with each other.

[0027] The lens module 50 is arranged on an optical path of the first reflected light beam F1 and the second reflected light beam F2. The lens module 50 is configured to image the first reflected light beam F1 to generate a first exit light beam O1 having an exit angle belonging to a first angle interval. The lens module 50 is also configured to image the second reflected light beam F2 to generate a second exit light beam O2 having an exit angle belonging to a second angle interval. The second angle interval does not coincide with at least part of the first angle interval. The controller 70 is electrically connected to the light modulator 30, and is configured to control the at least one micro-mirror 310 to switch between the first rotation position and the second rotation position.

[0028] Since the first exit light beam O1 and the second exit light beam O2 emitted from the lens module 50 correspond to at least partially different exit angles, the second exit light beam O2 can expand the exit angle on the basis of the first exit light beam O1. Therefore, when the light source device 100 is applied to the vehicle lamp 200, the illumination angle of the vehicle lamp 200 can be expanded, so as to improve the illumination effect of the vehicle lamp 200.

[0029] It should be noted that the lens module 50 can include one or more lenses for respectively imaging the first reflected light beam F1 and the second reflected light beam F2. Wherein, the "imaging" of the first reflected light beam F1 can be understood as that there is a one-to-one mapping relationship between the spatial position of the micromirror in the first rotation position on the light modulator and the spatial angle of the first exit light beam, and the mapping relationship can be understood as the imaging rule of the lens. Similarly, the "imaging" of the second reflected light beam F2 can be understood as that there is a one-to-one mapping relationship between the spatial position of the micromirror in the second rotation position on the light modulator and the spatial angle of the second exit light beam, and the mapping relationship can be understood as the imaging rule of the lens. In summary, the first exit light beam O1 and the second exit light beam O2 in the embodiment are respectively the light beams emitted after imaging via one or more lenses, and the specific implementation of the lens module 50 will be described in the following embodiments.

[0030] The specific implementation of the light source device 100 will be introduced below.

[0031] Please refer to FIG. 4, the light emitting module 10 can include a light emitting unit 120 and a converging lens 140. Wherein, the light emitting unit 120 is used to generate a specified light beam E. Specifically, the light emitting unit 120 can include one or more of a laser generator, an LED chip, a fluorescent conversion device. The specified light beam E can be a laser beam, an LED beam, a laser and LED mixed beam, a laser and fluorescent light mixed beam, etc., and the specific implementation of the light emitting unit 120 is not limited in the embodiment.

[0032] The converging lens 140 is arranged on the light path of the specified light beam E, which is used to converge and collect the specified light beam E to ensure that the specified light beam E can be accurately incident to the area where the light modulator 30 is located, and to improve the energy utilization efficiency of the specified light beam E. Specifically, the number of converging lenses 140 can be one or more, and in the embodiment shown in FIG. 4, the number of converging lenses 140 is four. Of course, the number of converging lenses 140 can also be two, three, five, etc. according to the actual needs of the light source device 100.

[0033] In some possible embodiments, the light source device 100 is suitable for application to a high beam, and thus the center energy intensity of the specified light beam E needs to be greater than the edge energy intensity. That is, the specified light beam E corresponds to a light spot energy distribution in which the energy intensity of the light spot center of the specified light beam E is greater than the energy intensity of the light spot edge, so as to achieve a high beam lighting effect that meets the requirements of traffic regulations. Therefore, in this embodiment, the light emitting module 10 can further include a Gaussian scattering sheet (not shown in the figure) that is disposed on the light path of the specified light beam E. For example, the Gaussian scattering sheet can be disposed between the light emitting unit 120 and the converging lens 140; in the case where the converging lens 140 is multiple, the Gaussian scattering sheet can also be disposed between adjacent converging lenses 140. Since the light intensity of the light rays that exit via the Gaussian scattering sheet can be Gaussian distributed, the light spot energy of the specified light beam E can be non-uniformly distributed in which the middle is strong and the periphery is weak, so as to meet the regulations of traffic regulations.

[0034] Referring back to FIG. 2, the light source device 100 can further include a guide 320. The guide 320 is disposed on the light path of the specified light beam E, and is used to guide the specified light beam E to the light modulator 30, so that the specified light beam E can be smoothly incident to the area where the light modulator 30 is located. In the embodiment shown in FIG. 2, the guide 320 can be a third reflecting mirror 3210 that is disposed on the light path of the specified light beam E, and is used to reflect the specified light beam E to the light modulator 30. In this embodiment, the guide 320 adopts a prism-free implementation manner, which can reduce the hardware cost of the light source device 100. Specifically, the third reflecting mirror 3210 deviates from the light path of the first reflected light beam F1 and the second reflected light beam F2, so as to ensure that the first reflected light beam F1 and the second reflected light beam F2 generated by reflection of the light modulator 30 can be smoothly incident to the lens module 50.

[0035] Referring to FIG. 5, the guide 320 can also be a total internal reflection (TIR) prism 3230 that is disposed on the light path of the specified light beam E, and is used to reflect the specified light beam E to the light modulator 30. The total internal reflection prism 3230 is also disposed on the light path of the first reflected light beam F1 and the second reflected light beam F2 generated by reflection of the light modulator 30, and is used to transmit the first reflected light beam F1 and the second reflected light beam F2 to the lens module 50. Specifically, the total internal reflection prism 3230 can be composed of two triangular prisms.

[0036] In the embodiment, the light modulator 30 can include a plurality of micro-mirrors 310, which can be arranged in an M*N array. Each micro-mirror 310 has a first rotation position and a second rotation position, where the first rotation position can correspond to the On state of the micro-mirror 310, and the second rotation position can correspond to the Off state of the micro-mirror 310. That is, when the micro-mirror 310 is in the first rotation position, the first reflected light beam F1 formed by reflecting the specified light beam E via the micro-mirror 310 can be understood as the On light corresponding to the On state. When the micro-mirror 310 is in the second rotation position, the second reflected light beam F2 formed by reflecting the specified light beam E via the micro-mirror 310 can be understood as the Off light corresponding to the Off state. Specifically, the light modulator 30 can be a Digital Micro-mirror Device (DMD), and the embodiment does not limit the specific implementation of the light modulator 30.

[0037] In some possible embodiments, each micro-mirror 310 can be controlled individually by the controller 70. Specifically, the controller 70 can control all micro-mirrors 310 to switch from the current position to another position; the controller 70 can also control a part of the micro-mirrors 310 to switch from the current position to another position, and control the remaining micro-mirrors 310 to maintain in the current position.

[0038] It should be noted that the plurality of micro-mirrors 310 in the On state and the Off state respectively can only reflect light, and do not modulate the specified light beam E. Therefore, when the spot energy of the specified light beam E is in a non-uniform distribution of strong in the middle and weak at the four corners, the spot energy of the first reflected light beam F1 and the second reflected light beam F2 generated by reflecting via the plurality of micro-mirrors 310 is also in a non-uniform distribution of strong in the middle and weak at the four corners.

[0039] In the embodiment, the lens module 50 can include a first lens assembly 520, a second lens assembly 540, and a reflecting assembly 560. The first lens assembly 520 is arranged on the optical path of the first reflected light beam F1, and is used to adjust the exit angle of the first reflected light beam F1. The reflecting assembly 560 and the second lens assembly 540 are arranged on the optical path of the second reflected light beam F2 in sequence, the reflecting assembly 560 is used to reflect the second reflected light beam F2 to the second lens assembly 540, and the second lens assembly 540 is used to adjust the exit angle of the second reflected light beam F2.

[0040] In the embodiment shown in FIG. 5, the optical axis of the first lens assembly 520 and the optical axis of the second lens assembly 540 are parallel. The first lens assembly 520 is also configured to image the first reflected light beam Fl to generate a first exit light beam Ol. The second lens assembly 540 is also configured to image the second reflected light beam F2 to generate a second exit light beam 02. Here, the exit angle of the first exit light beam Ol belongs to a first angle interval, and the exit angle of the second exit light beam 02 belongs to a second angle interval.

[0041] Here, the "exit angle" is explained. In the case that the light source device 100 is applied to a high beam, the specified light beam L generated by the light source device 100 needs to meet the angle range required by traffic regulations. Specifically, in the horizontal direction, the horizontal exit angle (H FOV) needs to cover at least -12° to +12°, and in the vertical direction, the vertical exit angle (V FOV) needs to cover at least 0° to 2°. Here, the "horizontal direction" refers to the direction parallel to the horizontal plane, and the "vertical direction" refers to the direction perpendicular to the horizontal plane. The "horizontal plane" can be the plane on which the vehicle is located in the normal driving state. The "exit angle" in the present application refers to the horizontal exit angle (H FOV) in the horizontal direction.

[0042] Specifically, the second angle interval does not overlap at least part of the first angle interval. For example, the second angle interval and the first angle interval can be two completely non-overlapping intervals, for example, the second angle interval is [-16°, 0°], and the first angle interval is (0°, +16°]. For another example, the second angle interval and the first angle interval can be two partially overlapping intervals, the second angle interval is [-16°, +2°], and the first angle interval is [-2°, +16°].

[0043] In some possible embodiments, the absolute value of the angle value in the first angle interval is less than or equal to the absolute value of the angle value in the second angle interval. For example, the second angle interval can include two sub-intervals, and the first angle interval is located between the two sub-intervals. Exemplarily, the second angle interval can be [-16°, -8°] and [+8°, +16°], and the first angle interval can be [-8°, +8°]. It should be noted here that the positive and negative signs of the angle value represent the propagation direction of the light. For example, a light with an exit angle of -6° and a light with an exit angle of +6° are axisymmetric about the optical axis of the lens.

[0044] Referring to FIG. 6, FIG. 6 is a diagram of the range of the exit angles corresponding to the first exit light beam O1 and the second exit light beam O2 according to the embodiment. The first exit light beam O1 can correspond to region A1 and region A2 in FIG. 6, and the second exit light beam O2 can correspond to region B1 and region B2 in FIG. 6. Specifically, the vertical exit angles corresponding to region B1, region A1, region A2 and region B2 are -2° to +6°; the horizontal exit angle corresponding to region B1 is -16° to -8°; the horizontal exit angle corresponding to region A1 is -8° to 0°; the horizontal exit angle corresponding to region A2 is 0° to +8°; and the horizontal exit angle corresponding to region B2 is +8° to +16°.

[0045] It should be noted that region B1, region A1, region A2 and region B2 in FIG. 6 only represent the range of the exit angles, and do not represent the imaging positions and the light beam intensity distribution. For example, the light beam corresponding to region B1 and the light beam corresponding to region A1 are not adjacent in the spatial position, and the two light beams can coincide or partially coincide.

[0046] The specific optical path corresponding to the lens module 50 will be described below.

[0047] Referring to FIG. 3 and FIG. 7, the light modulator 30 can have a first reflection region 302 and a second reflection region 304, which can be two adjacent reflection regions on the light modulator 30. Specifically, a part of the micromirrors 310 included in the light modulator 30 can be located in the first reflection region 302, and another part of the micromirrors 310 included in the light modulator 30 can be located in the second reflection region 304. Specifically, the area of the first reflection region 302 and the second reflection region 304 can be the same, and the first reflection region 302 and the second reflection region 304 can be symmetrically arranged about a specified axis K.

[0048] In the embodiment shown in FIG. 7, the specified light beam E can include a first specified sub-light beam E1 and a second specified sub-light beam E2. Here, the first specified sub-light beam E1 and the second specified sub-light beam E2 are named for the convenience of describing the optical path below. Specifically, the part of the specified light beam E incident to the first reflection region 302 is referred to as the first specified sub-light beam E1, and the part of the specified light beam E incident to the second reflection region 304 is referred to as the second specified sub-light beam E2.

[0049] The first specified sub-beam E1 is reflected by the plurality of micro-mirrors 310 in the first rotation position corresponding to the first reflection region 302 to form a first reflected sub-beam F11, and the second specified sub-beam E2 is reflected by the plurality of micro-mirrors 310 in the first rotation position corresponding to the second reflection region 304 to form a second reflected sub-beam F12. Further, the first lens assembly 520 is configured to image the first reflected sub-beam F11 to generate a first exit sub-beam O11 having an exit angle belonging to a first angle sub-interval. The first lens assembly 520 is also configured to image the second reflected sub-beam F12 to generate a second exit sub-beam O12 having an exit angle belonging to a second angle sub-interval, the second angle sub-interval and the first angle sub-interval are non-overlapping and both belong to a first angle interval.

[0050] For example, when the first angle interval is [-8°, +8°], the first angle sub-interval can be [0°, +8°] and the second angle sub-interval can be [-8°, 0°]. It can be found that the exit angle of the first exit sub-beam O11 can correspond to the region A2 in FIG. 6, and the exit angle of the second exit sub-beam O12 can correspond to the region A1 in FIG. 6.

[0051] Specifically, the first lens assembly 520 can include one or more lenses, which can be positive lenses, compound lenses, spherical lenses, aspherical lenses, etc. The specific implementation of the first lens assembly 520 is not limited in the embodiment.

[0052] Therefore, when the plurality of micro-mirrors 310 are in the first rotation position, the first exit beam O1 exiting from the first lens assembly 520 can correspond to the regions A1 and A2 in FIG. 6. When the spot energy of the first reflected beam F1 is non-uniformly distributed with the middle strong and the four corners weak, the overall energy distribution corresponding to the regions A1 and A2 is also non-uniformly distributed with the middle strong and the four corners weak. That is, the smaller the exit angle, the greater the spot energy. Please refer to FIG. 8, which schematically shows the overall energy distribution corresponding to the regions A1 and A2, wherein the “white squares” correspond to regions with relatively strong energy intensity, and the “gray squares” correspond to regions with relatively weak energy intensity.

[0053] Please refer to FIG. 7 again, the first specified sub-beam E1 is reflected by the plurality of micro-mirrors 310 in the second rotation position corresponding to the first reflection region 302 to form a third reflected sub-beam F21, and the second specified sub-beam E2 is reflected by the plurality of micro-mirrors 310 in the second rotation position corresponding to the second reflection region 304 to form a fourth reflected sub-beam F22.

[0054] Specifically, the reflecting assembly 560 can include a first mirror 5610 and a second mirror 5630. The first mirror 5610 is disposed on an optical path of the third reflected sub-beam F21 and is configured to reflect the third reflected sub-beam F21 to the second lens assembly 540. The second lens assembly 540 is configured to image the third reflected sub-beam F21 to generate a third emergent sub-beam O21 having an emergent angle belonging to a third angle sub-interval. The second mirror 5630 is disposed on an optical path of the fourth reflected sub-beam F22 and is configured to reflect the fourth reflected sub-beam F22 to the second lens assembly 540. The second lens assembly 540 is configured to image the fourth reflected sub-beam F22 to generate a fourth emergent sub-beam O22 having an emergent angle belonging to a fourth angle sub-interval. The third angle sub-interval and the fourth angle sub-interval are non-overlapping and both belong to the second angle interval.

[0055] For example, when the second angle interval is [-16°, -8°] and [+8°, +16°], the third angle sub-interval can be [-16°, -8°] and the fourth angle sub-interval can be [+8°, +16°]. It can be found that the emergent angle of the third emergent sub-beam O21 corresponds to the region B1 in FIG. 6 and the emergent angle of the fourth emergent sub-beam O22 corresponds to the region B2 in FIG. 6. Therefore, when the plurality of micromirrors 310 are in the second rotation position, the second emergent beam O2 emitted by the second lens assembly 540 can correspond to the region B1 and the region B2 in FIG. 6.

[0056] It should be noted that the third reflected sub-beam F21 and the fourth reflected sub-beam F22 are named for the convenience of describing the optical path. In the actual optical path, the third reflected sub-beam F21 and the fourth reflected sub-beam F22 correspond to the same light beam (i.e., the second reflected beam F2). When the second reflected beam F2 is incident on the first mirror 5610 and the second mirror 5630, the first mirror 5610 and the second mirror 5630 need to divide the second reflected beam F2 equally to ensure that the angles covered by the region B1 and the region B2 are consistent.

[0057] Specifically, the second lens assembly 540 can include one or more lenses, which can be positive lenses, compound lenses, spherical lenses, aspherical lenses, etc. The specific implementation of the second lens assembly 540 is not limited in the present embodiment.

[0058] In some possible embodiments, the at least partial second angle subinterval is located between the at least partial third angle subinterval and the at least partial first angle subinterval, and the at least partial first angle subinterval is located between the at least partial second angle subinterval and the at least partial fourth angle subinterval. Specifically, the second angle subinterval [-8°, 0°] is located between the third angle subinterval [-16°, -8°] and the first angle subinterval [0°, +8°]. The first angle subinterval [0°, +8°] is located between the second angle subinterval [-8°, 0°] and the fourth angle subinterval [+8°, +16°].

[0059] In addition, since the first reflected sub-beam F11 and the third reflected sub-beam F21 correspond to the same reflection region (i.e., the first reflection region 302), and the first mirror 5610 is arranged on the light path of the third reflected sub-beam F21, the spot pattern of the third outgoing sub-beam O21 is axially symmetrical to the spot pattern of the first outgoing sub-beam O11. As shown in FIG. 8, the pattern of the region A2 (corresponding to the first outgoing sub-beam O11) is axially symmetrical to the pattern of the region B1 (corresponding to the third outgoing sub-beam O221), so that in the region B1, the smaller the outgoing angle, the greater the spot energy.

[0060] Similarly, since the second reflected sub-beam F12 and the fourth reflected sub-beam F22 correspond to the same reflection region (i.e., the second reflection region 304), and the second mirror 5630 is arranged on the light path of the fourth reflected sub-beam F22, the spot pattern of the fourth outgoing sub-beam O22 is axially symmetrical to the spot pattern of the second outgoing sub-beam O12. As shown in FIG. 8, the pattern of the region A1 (corresponding to the second outgoing sub-beam O12) is axially symmetrical to the pattern of the region B2 (corresponding to the fourth outgoing sub-beam O22), so that in the region B2, the smaller the outgoing angle, the greater the spot energy.

[0061] Further, in the embodiment, the controller 70 is configured to: control the micromirror 310 to rotate to the second rotation position when the time length during which the micromirror 310 is in the first rotation position is greater than or equal to the first time length; and control the micromirror 310 to rotate to the first rotation position when the time length during which the micromirror 310 is in the second rotation position is greater than or equal to the second time length. The second time length is less than the first time length. Specifically, the ratio between the second time length and the first time length can be greater than or equal to 0.15 and less than or equal to 0.85, for example, the ratio between the second time length and the first time length can be 3 / 17, 1 / 4, 1 / 3, 1 / 2, and the like. The controller 70 can be a microcontroller unit (MCU), or a control circuit integrated with a control chip, or the like, which is not limited in the embodiment.

[0062] In one aspect, the controller 70 is configured to control the micro-mirror 310 to continuously switch between the first rotation position and the second rotation position, so that the light source device 100 generates a specified light beam L which is a light beam in which the first exit light beam O1 and the second exit light beam O2 are superimposed in time, so that the second exit light beam O2 can play a role of expanding the exit angle on the basis of the first exit light beam O1.

[0063] In another aspect, since the micro-mirror 310 is in the second rotation position for a time shorter than the time in the first rotation position, the overall energy intensity of the first exit light beam O1 can be greater than the overall energy intensity of the second exit light beam O2. That is, in FIG. 8, the overall energy intensity of the regions A1 and A2 is stronger than the overall energy intensity of the regions B1 and B2, and the darker the color of the "gray square", the weaker the corresponding energy intensity, so that the overall energy intensity corresponding to the regions A1, A2, B1 and B2 can be an energy distribution of middle strong and periphery weak.

[0064] It should be noted here that in the prior art, in order to achieve the exit angle of -16° to +16° horizontally and -2° to +6° vertically required by regulations, and to meet the energy distribution of "middle strong and periphery weak", most of the light energy will be concentrated in the local area of the DMD. And when the light brightness is higher and the spatial exit angle range is larger, the light power density of the local DMD is higher. Therefore, in this case, the local light power density of the DMD has exceeded the safety threshold of the device, and there is a risk of reducing the service life of the DMD.

[0065] Therefore, in order to solve the above problems, the inventors of the present application propose the light source device 100 in the embodiment, since the first exit light beam O1 and the second exit light beam O2 are time-sharingly emitted and the respective corresponding exit angles are different, the exit angle range of the first exit light beam O1 can be reduced to reduce the light power density of the local DMD to ensure the service life of the DMD. Specifically in the present application, the first exit light beam O1 only needs to cover the exit angle of -8° to +8° horizontally, and the exit angles of -16° to -8° and +8° to +16° horizontally are covered by the second exit light beam O2, and the second reflected light beam F2 can play a role of expanding the exit angle, so that the light beam after superimposition of the first exit light beam O1 and the second exit light beam O2 can meet the requirements of regulations.

[0066] In some possible embodiments, the controller 70 is specifically configured to control the light modulator 30 to switch between a first working mode and a second working mode, in the first working mode, at least part of the plurality of micro-mirrors 310 is in the first rotational position, and in the second working mode, at least part of the plurality of micro-mirrors 310 is in the second rotational position, so that the first reflected light beam F1 formed by the at least part of the micro-mirrors 310 and the second reflected light beam F1 formed by the at least part of the micro-mirrors 310 are incident to the lens module in time division.

[0067] As an example, in the first working mode, all the micro-mirrors 310 included in the light modulator 30 are in the first rotational position. Similarly, in the second working mode, all the micro-mirrors 310 included in the light modulator 30 are in the second rotational position. At this time, the light modulator 30 can be equivalent to a mirror.

[0068] As another example, in the first working mode, part of the micro-mirrors 310 included in the light modulator 30 are in the first rotational position, and the other part of the micro-mirrors 310 are in the second rotational position. Similarly, in the second working mode, part of the micro-mirrors 310 included in the light modulator 30 are in the second rotational position, and the other part of the micro-mirrors 310 are in the first rotational position. That is, the controller 70 can control the light modulator 30 to adjust the other part of the micro-mirrors 310 corresponding to a specific exit angle, so as to realize the adaptive driving beam (ADB) function. Specifically, the controller 70 can automatically change the light pattern of the high beam according to the current road driving condition, and only close (or greatly weaken) the illumination light in the direction of the oncoming vehicle, while keeping the illumination light in other directions unchanged, so as to effectively improve the safety of driving.

[0069] However, since the micro-mirrors 310 are switched between the On state and the Off state to realize switching between the first rotational position and the second rotational position, when the region A1 needs to reduce the light intensity of part of the region to realize the ADB function, since the region A1 and the region B2 correspond to the same reflection region on the DMD, the light intensity of the part of the region corresponding to the region B2 will be increased, that is, the regions A1 and B2 will exhibit complementary brightness characteristics. Similarly, the regions A2 and B1 will exhibit complementary brightness characteristics.

[0070] The inventors of the present application solve the above problems by designing the optical path of the lens module 50 to separate the corresponding exit angles of the regions A1 and B2 as much as possible, and to separate the corresponding exit angles of the regions A2 and B1 as much as possible. Specifically, in the present application, the region A1 corresponds to an exit angle of -8° to 0°, the region B2 corresponds to an exit angle of +8° to +16°, and the mapping relationship between the regions A1 and B2 is left-right flipping. Similarly, the region B1 corresponds to an exit angle of -16° to -8°, the region A2 corresponds to an exit angle of 0° to +8°, and the mapping relationship between the regions A2 and B1 is left-right flipping, so that when the ADB function is enabled, the exit angles of the On light and the Off light are separated as much as possible, so as to reduce the probability that the light intensity of the two regions needs to be reduced at the same time, and to ensure the illumination effect of the high beam.

[0071] In summary, the light source device 100 in the present embodiment can realize high illumination brightness and large illumination angle ADB performance under the premise of meeting the reliability and service life of the light modulator 30 (for example, a DMD device).

[0072] In some possible embodiments, referring to FIG. 9, the optical axis of the first lens assembly 520 and the optical axis of the second lens assembly 540 coincide. The second lens assembly 540 is located on the side of the first lens assembly 520 away from the light modulator 30, and the second lens assembly 540 is also arranged on the optical path of the first reflected light beam F1.

[0073] The first lens assembly 520 and the second lens assembly 540 are also used to sequentially image the first reflected light beam F1 to generate the first exit light beam O1. The second lens assembly 540 is also used to image the second reflected light beam F2 to generate the second exit light beam O2. Of course, the "first lens assembly 520 and the second lens assembly 540" here can be regarded as the same lens assembly, and the first lens assembly 520 is the front group lens assembly in the lens assembly, and the second lens assembly 540 is the rear group lens assembly in the lens assembly.

[0074] It can be found here that the first exit light beam O1 and the second exit light beam O2 are both emitted from the second lens assembly 540, so that the external light exit window is smaller, and the overall structure of the vehicle lamp 200 can be more compact. In addition, the exit angle of the second exit light beam O2 can also be matched with the low beam, assisting the adaptive adjustment of the low beam light pattern, so that the vehicle lamp 200 can realize high beam illumination and low beam illumination at the same time. Specifically, for the specific description of the first lens assembly 520, the second lens assembly 540, the reflection assembly 560 and the optical path in the embodiment shown in FIG. 9, reference can be made to the related description in the above embodiments, which will not be repeated here.

[0075] The first embodiment of the present application provides a light source device 100, which can include a light emitting module 10, a light modulator 30, a lens module 50, and a controller 70. The light emitting module 10 is configured to generate a specified light beam E. The light modulator 30 can include a plurality of micro-mirrors 310, which are rotatably arranged on an optical path of the specified light beam E. Each micro-mirror 310 has a first rotation position and a second rotation position. When the micro-mirror 310 is in the first rotation position, the specified light beam E is reflected by the micro-mirror 310 to form a first reflected light beam F1. When the micro-mirror 310 is in the second rotation position, the specified light beam E is reflected by the micro-mirror 310 to form a second reflected light beam F2. The second reflected light beam F2 and the first reflected light beam F1 do not overlap.

[0076] The lens module 50 is arranged on an optical path of the first reflected light beam F1 and the second reflected light beam F2. The lens module 50 is configured to image the first reflected light beam F1 to generate a first outgoing light beam O1 having an outgoing angle belonging to a first angle interval. The lens module 50 is also configured to image the second reflected light beam F2 to generate a second outgoing light beam O2 having an outgoing angle belonging to a second angle interval. The second angle interval does not overlap at least part of the first angle interval. The controller 70 is electrically connected to the light modulator 30 and is configured to control the at least one micro-mirror 310 to switch between the first rotation position and the second rotation position.

[0077] Since the outgoing angles of the first outgoing light beam O1 and the second outgoing light beam O2 emitted from the lens module 50 are at least partially different, the second outgoing light beam O2 can expand the outgoing angle on the basis of the first outgoing light beam O1. Therefore, when the light source device 100 is applied to a vehicle lamp 200, the illumination angle of the vehicle lamp 200 can be expanded to improve the illumination effect of the vehicle lamp 200.

[0078] Referring to FIG. 10, the second embodiment of the present application provides a light source device 300, which can include a light emitting module 20, a reflecting member 40, a lens module 60, and a controller 80. The light emitting module 20 is configured to generate a specified light beam E. The reflecting member 40 is rotatably arranged on an optical path of the specified light beam E. The reflecting member 40 has a first rotation position and a second rotation position. When the reflecting member 40 is in the first rotation position, the specified light beam E is reflected by the reflecting member 40 to form a first reflected light beam F1. When the reflecting member 40 is in the second rotation position, the specified light beam E is reflected by the reflecting member 40 to form a second reflected light beam F2. The second reflected light beam F2 and the first reflected light beam F1 do not overlap.

[0079] The lens module 60 is disposed on the light path of the first reflected light beam F1 and the second reflected light beam F2, and is configured to image the first reflected light beam F1 to generate a first emergent light beam with an emergent angle belonging to a first angle interval. The lens module 60 is also configured to image the second reflected light beam F2 to generate a second emergent light beam with an emergent angle belonging to a second angle interval. The second angle interval does not overlap with at least part of the first angle interval. The controller 80 is electrically connected to the reflective member 40, and is configured to control the reflective member 40 to switch between the first rotation position and the second rotation position, so that the first reflected light beam F1 and the second reflected light beam F2 are incident to the lens module 60 in time division.

[0080] Since the emergent angles corresponding to the first emergent light beam O1 and the second emergent light beam O2 emitted from the lens module 60 are at least partially different, the second emergent light beam O2 can play a role in expanding the emergent angle on the basis of the first emergent light beam O1. Therefore, when the light source device 300 is applied to the vehicle lamp 200, the illumination angle of the vehicle lamp 200 can be expanded to improve the illumination effect of the vehicle lamp 200.

[0081] In the present embodiment, the reflective member 40 can be a mirror. It can be found that the reflective member 40 is used in the present embodiment to replace the light modulator 30 in the first embodiment, which can reduce the hardware cost of the light source device 300 and the vehicle lamp 200 provided with the light source device 300. Specifically, the reflective member 40 has a first reflection region 401 and a second reflection region 403. The first reflection region 401 and the second reflection region 403 can be adjacent to each other, and the area of the first reflection region 401 and the area of the second reflection region 403 can be the same.

[0082] Specifically, the features of the light emitting module 20 and the controller 80 can refer to and use the features of the light emitting module 10 and the controller 70 in the first embodiment, respectively. For the sake of brevity, the features will not be described again.

[0083] Referring to FIG. 11, the lens module 60 can include a first lens assembly 610, a second lens assembly 630, and a reflecting assembly 650. The first lens assembly 610 is disposed on the light path of the first reflected light beam F1, and is configured to adjust the emergent angle of the first reflected light beam F1. The reflecting assembly 650 and the second lens assembly 630 are sequentially disposed on the light path of the second reflected light beam F2. The reflecting assembly 650 is configured to reflect the second reflected light beam F2 to the second lens assembly 630, and the second lens assembly 630 is configured to adjust the emergent angle of the second reflected light beam F2.

[0084] Specifically, the specified light beam E can include a first sub-specified sub-light beam E1 and a second sub-specified sub-light beam E2, in the case where the reflector 40 is in the first rotation position, the first sub-specified sub-light beam E1 is reflected by the first reflection region 401 to form a first reflected sub-light beam F11, and the second sub-specified sub-light beam E2 is reflected by the second reflection region 403 to form a second reflected sub-light beam F12. The first lens assembly 610 is configured to image the first reflected sub-light beam F11 to generate a first exit sub-light beam O11 with an exit angle belonging to a first angle sub-interval, and the first lens assembly 610 is configured to image the second reflected sub-light beam F12 to generate a second exit sub-light beam O12 with an exit angle belonging to a second angle sub-interval, the second angle sub-interval and the first angle sub-interval do not overlap and both belong to the first angle interval.

[0085] In some possible embodiments, in the case where the reflector 40 is in the second rotation position, the first sub-specified sub-light beam E1 is reflected by the first reflection region 401 to form a third reflected sub-light beam F21, and the second sub-specified sub-light beam E2 is reflected by the second reflection region 403 to form a fourth reflected sub-light beam F22. The reflection assembly 650 includes a first mirror 6520 and a second mirror 6540, the first mirror 6520 is disposed on an optical path of the third reflected sub-light beam F21 and is configured to reflect the third reflected sub-light beam F21 to the second lens assembly 630, and the second lens assembly 630 is configured to image the third reflected sub-light beam F21 to generate a third exit sub-light beam O21 with an exit angle belonging to a third angle sub-interval. The second mirror 6540 is disposed on an optical path of the fourth reflected sub-light beam F22 and is configured to reflect the fourth reflected sub-light beam F22 to the second lens assembly 630, and the second lens assembly 630 is configured to image the fourth reflected sub-light beam F22 to generate a fourth exit sub-light beam O22 with an exit angle belonging to a fourth angle sub-interval, the fourth angle sub-interval and the third angle sub-interval do not overlap and both belong to the second angle interval.

[0086] In some possible embodiments, at least part of the second angle sub-interval is located between at least part of the third angle sub-interval and at least part of the first angle sub-interval, and at least part of the first angle sub-interval is located between at least part of the second angle sub-interval and at least part of the fourth angle sub-interval.

[0087] Specifically, the features of the first lens assembly 610, the second lens assembly 630 and the reflecting assembly 650 can refer to and follow the features of the first lens assembly 520, the second lens assembly 540 and the reflecting assembly 560 in the first embodiment respectively, and will not be repeated here for the sake of brevity. Similarly, the features of the plurality of light beams can also refer to and follow the features of the plurality of light beams with the same names in the first embodiment respectively, and will not be repeated here for the sake of brevity. For example, the features of the first exit sub-beam O11 in the present embodiment can refer to and follow the features of the first exit sub-beam O11 in the first embodiment respectively. For another example, the features of the first angle sub-interval in the present embodiment can refer to and follow the features of the first angle sub-interval in the first embodiment respectively.

[0088] It should be noted here that, in the case of no conflict, any one or more features of the light source device 100 corresponding to the first embodiment can be incorporated into the light source device 300 corresponding to the second embodiment, and will not be repeated here for the sake of brevity.

[0089] In the present application, some terms are used in the specification and claims to refer to certain components. Those skilled in the art should understand that hardware manufacturers may use different names to refer to the same component. The specification and claims do not distinguish components by name difference, but by functional difference. As mentioned throughout the specification and claims, "including" is an open term, which should be interpreted as "including but not limited to"; "approximately" means that those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0090] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to simplify the description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0091] In the present application, unless otherwise explicitly specified or limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly. For example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements, or only surface contact. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0092] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0093] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0094] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not drive the essence of the corresponding technical solutions out of the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A light source apparatus, characterized by comprising: The application relates to a light source device. The light source device comprises: a light-emitting module for generating a specified light beam; a light modulator comprising a plurality of micro-mirrors rotatably arranged on an optical path of the specified light beam, each micro-mirror having a first rotation position and a second rotation position; when the micro-mirror is in the first rotation position, the specified light beam is reflected by the micro-mirror to form a first reflected light beam; when the micro-mirror is in the second rotation position, the specified light beam is reflected by the micro-mirror to form a second reflected light beam; a lens module arranged on an optical path of the first reflected light beam and the second reflected light beam; the lens module is used for imaging the first reflected light beam to generate a first outgoing light beam having an outgoing angle belonging to a first angle interval; the lens module is used for imaging the second reflected light beam to generate a second outgoing light beam having an outgoing angle belonging to a second angle interval; the second angle interval does not overlap at least part of the first angle interval; 2. The light source apparatus according to claim 1, wherein and a controller electrically connected to the light modulator and configured to control at least one micro-mirror to switch between the first rotation position and the second rotation position.

3. The light source apparatus according to claim 1, wherein The light source device is suitable for application in a high beam, and the specified light beam has a central energy intensity greater than an edge energy intensity. An absolute value of an angle value in the first angle interval is less than or equal to an absolute value of an angle value in the second angle interval; the controller is configured to: control the micro-mirror to rotate to the second rotation position when a time length during which the micro-mirror is in the first rotation position is greater than or equal to a first time length; control the micro-mirror to rotate to the first rotation position when a time length during which the micro-mirror is in the second rotation position is greater than or equal to a second time length; and 4. The light source apparatus according to claim 1, wherein the second time length is less than the first time length. A spatial position of a micro-mirror in the first rotation position on the light modulator has a one-to-one mapping relationship with a spatial angle of the first outgoing light beam; 5. The light source apparatus according to claim 1, wherein a spatial position of a micro-mirror in the second rotation position on the light modulator has a one-to-one mapping relationship with a spatial angle of the second outgoing light beam. The lens module comprises a first lens assembly, a second lens assembly and a reflecting assembly; the first lens assembly is arranged on an optical path of the first reflected light beam and used for adjusting an outgoing angle of the first reflected light beam; 6. The light source apparatus according to claim 5, wherein the reflecting assembly and the second lens assembly are arranged on an optical path of the second reflected light beam in sequence; the reflecting assembly is used for reflecting the second reflected light beam to the second lens assembly, and the second lens assembly is used for adjusting an outgoing angle of the second reflected light beam. optical axes of the first lens assembly and the second lens assembly are parallel to each other; the first lens assembly is also used for imaging the first reflected light beam to generate the first outgoing light beam; and the second lens assembly is also used for imaging the second reflected light beam to generate the second outgoing light beam.

7. The light source apparatus according to claim 5, wherein An optical axis of the first lens assembly coincides with an optical axis of the second lens assembly; the second lens assembly is located on a side of the first lens assembly away from the light modulator, and is further disposed on an optical path of the first reflected light beam; The first lens assembly and the second lens assembly are further configured to sequentially image the first reflected light beam to generate the first exit light beam; and the second lens assembly is further configured to image the second reflected light beam to generate the second exit light beam.

8. The light source apparatus according to claim 5, wherein The light modulator has a first reflection region and a second reflection region; the specified light beam includes a first specified sub-light beam and a second specified sub-light beam; The first specified sub-light beam is reflected by a plurality of micro-mirrors corresponding to the first reflection region and located at the first rotation position to form a first reflected sub-light beam, and the second specified sub-light beam is reflected by a plurality of micro-mirrors corresponding to the second reflection region and located at the first rotation position to form a second reflected sub-light beam; The first lens assembly is configured to image the first reflected sub-light beam to generate a first exit sub-light beam with an exit angle belonging to a first angle sub-interval, and is configured to image the second reflected sub-light beam to generate a second exit sub-light beam with an exit angle belonging to a second angle sub-interval, the second angle sub-interval and the first angle sub-interval do not overlap and both belong to the first angle interval.

9. The light source apparatus according to claim 8, wherein The first specified sub-light beam is reflected by a plurality of micro-mirrors corresponding to the first reflection region and located at the second rotation position to form a third reflected sub-light beam, and the second specified sub-light beam is reflected by a plurality of micro-mirrors corresponding to the second reflection region and located at the second rotation position to form a fourth reflected sub-light beam; The reflection assembly includes a first reflector and a second reflector, the first reflector is disposed on an optical path of the third reflected sub-light beam and is configured to reflect the third reflected sub-light beam to the second lens assembly; the second lens assembly is configured to image the third reflected sub-light beam to generate a third exit sub-light beam with an exit angle belonging to a third angle sub-interval; The second reflector is disposed on an optical path of the fourth reflected sub-light beam and is configured to reflect the fourth reflected sub-light beam to the second lens assembly; the second lens assembly is configured to image the fourth reflected sub-light beam to generate a fourth exit sub-light beam with an exit angle belonging to a fourth angle sub-interval, the fourth angle sub-interval and the third angle sub-interval do not overlap and both belong to the second angle interval.

10. The light source apparatus according to claim 9, wherein At least part of the second angle sub-interval is located between at least part of the third angle sub-interval and at least part of the first angle sub-interval; At least part of the first angle sub-interval is located between at least part of the second angle sub-interval and at least part of the fourth angle sub-interval.

11. The light source apparatus according to claim 9, wherein The spot pattern of the third exit sub-light beam is axially symmetric to the spot pattern of the first exit sub-light beam; The spot pattern of the fourth exit sub-light beam is axially symmetric to the spot pattern of the second exit sub-light beam.

12. The light source apparatus according to any one of claims 1 to 11, wherein The controller is specifically configured to: The light modulator is controlled to switch between a first operation mode and a second operation mode; in the first operation mode, at least part of the plurality of micro-mirrors is in the first rotation position, and in the second operation mode, the at least part of the plurality of micro-mirrors is in the second rotation position, so that a first reflected light beam formed by the at least part of the micro-mirrors and a second reflected light beam formed by the at least part of the micro-mirrors are incident to the lens module in time division.

13. The light source apparatus according to any one of claims 1 to 11, wherein The light source device further comprises a guide arranged on an optical path of the specified light beam, for guiding the specified light beam to the light modulator.

14. The light source apparatus according to claim 13, wherein The guide is a total internal reflection prism arranged on an optical path of the specified light beam, for reflecting the specified light beam to the light modulator; the total internal reflection prism is also arranged on an optical path of the first reflected light beam and the second reflected light beam, for transmitting the first reflected light beam and the second reflected light beam to the lens module; or The guide is a third mirror arranged on an optical path of the specified light beam, for reflecting the specified light beam to the light modulator; the third mirror is offset from an optical path of the first reflected light beam and the second reflected light beam.

15. A light source arrangement, characterized by Comprise: a light-emitting module for generating a specified light beam; a reflecting element rotatably arranged on an optical path of the specified light beam, the reflecting element having a first rotation position and a second rotation position; in the case that the reflecting element is in the first rotation position, the specified light beam forms a first reflected light beam after being reflected by the reflecting element; in the case that the reflecting element is in the second rotation position, the specified light beam forms a second reflected light beam after being reflected by the reflecting element; a lens module arranged on an optical path of the first reflected light beam and the second reflected light beam; the lens module is used for imaging the first reflected light beam to generate a first emergent light beam with an emergent angle belonging to a first angle interval; the lens module is used for imaging the second reflected light beam to generate a second emergent light beam with an emergent angle belonging to a second angle interval; the second angle interval does not overlap at least part of the first angle interval; and a controller electrically connected with the reflecting element, for controlling the reflecting element to switch between the first rotation position and the second rotation position, so that the first reflected light beam and the second reflected light beam are incident to the lens module in time division.

16. The light source apparatus according to claim 15, wherein The lens module comprises a first lens assembly, a second lens assembly and a reflecting assembly; the first lens assembly is arranged on an optical path of the first reflected light beam, for adjusting the emergent angle of the first reflected light beam; the reflecting assembly and the second lens assembly are arranged in sequence on an optical path of the second reflected light beam; the reflecting assembly is used for reflecting the second reflected light beam to the second lens assembly, and the second lens assembly is used for adjusting the emergent angle of the second reflected light beam.

17. The light source apparatus according to claim 16, wherein The reflecting element has a first reflection region and a second reflection region; the specified light beam comprises a first specified sub-light beam and a second specified sub-light beam; In a case where the reflecting member is in the first rotational position, the first specified sub-beam forms a first reflected sub-beam after being reflected by the first reflection region, and the second specified sub-beam forms a second reflected sub-beam after being reflected by the second reflection region; The first lens assembly is configured to image the first reflected sub-beam to generate a first emergent sub-beam having an emergent angle belonging to a first angle sub-interval, and is configured to image the second reflected sub-beam to generate a second emergent sub-beam having an emergent angle belonging to a second angle sub-interval, the second angle sub-interval and the first angle sub-interval are non-overlapping and both belong to the first angle interval.

18. The light source apparatus according to claim 17, wherein In a case where the reflecting member is in the second rotational position, the first specified sub-beam forms a third reflected sub-beam after being reflected by the first reflection region, and the second specified sub-beam forms a fourth reflected sub-beam after being reflected by the second reflection region; The reflecting assembly includes a first reflector and a second reflector, the first reflector is arranged on an optical path of the third reflected sub-beam and is configured to reflect the third reflected sub-beam to the second lens assembly; the second lens assembly is configured to image the third reflected sub-beam to generate a third emergent sub-beam having an emergent angle belonging to a third angle sub-interval; The second reflector is arranged on an optical path of the fourth reflected sub-beam and is configured to reflect the fourth reflected sub-beam to the second lens assembly; the second lens assembly is configured to image the fourth reflected sub-beam to generate a fourth emergent sub-beam having an emergent angle belonging to a fourth angle sub-interval, the fourth angle sub-interval and the third angle sub-interval are non-overlapping and both belong to the second angle interval.

19. The light source apparatus according to claim 18, wherein At least part of the second angle sub-interval is located between at least part of the third angle sub-interval and at least part of the first angle sub-interval; At least part of the first angle sub-interval is located between at least part of the second angle sub-interval and at least part of the fourth angle sub-interval.

20. A vehicle light, characterized by Comprising: a housing; and the light source device as claimed in any one of claims 1 to 19, the light source device being arranged in the housing.

Images