Light source device

Abstract

The utility model discloses a light source device which comprises a substrate, an LED array, a collimating lens assembly, a dodging assembly and a convergent lens assembly, the LED array is composed of LED light-emitting bodies arranged in an array mode, the collimating lens assembly is used for collecting and / or collimating light emitted by the LED light-emitting bodies, the convergent lens assembly is used for converging the light to a preset face to form light spots, and the dodging assembly is used for dodging light emitted by the LED light-emitting bodies. The collimating lens assembly, the dodging assembly and the convergent lens assembly are sequentially arranged in the light emitting direction of the LED array. The LED lamp further comprises a first adjusting mechanism, the light uniformizing assembly comprises a first light uniformizing piece enabling the illuminance of the light spots to be in Gaussian-like distribution and a second light uniformizing piece enabling the illuminance of the light spots to be in flat-top-like distribution, and the first adjusting mechanism is used for adjusting the first light uniformizing piece and the second light uniformizing piece so that the first light uniformizing piece and the second light uniformizing piece can move relatively and one of the first light uniformizing piece and the second light uniformizing piece can be located on a light path of the LED array. According to the light source device, the illuminance of emitted light spots can present at least two different effects, and the light source device is small in size and compact in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of stage light sources, and more specifically, to a light source device. Background Art

[0002] Stage lighting equipment is used for stage lighting. Its main function is to create an environment, render the atmosphere, highlight the central figure, create a sense of stage space and time, and shape the external image of the stage performance as the performance plot develops. Currently, most stage lights on the market achieve different stage light effects by using optical elements such as dimming sheets, CMY sheets, pattern sheets, and color sheets to process the light emitted by the light source. However, the effect of changing such optical elements is limited, and most of them can only change the pattern and color of the light. For example, a pattern sheet can only change the shape of the light spot, and it is difficult to change the color rendering index, illuminance, luminous flux, color temperature, light spot uniformity, etc. of the light spot itself. There has also been a light source module on the market that sets a single LED light-emitting body in an LED array as an RGBW four-in-one chip. However, in this multi-chip combination method, the light collection efficiency of each chip is very low because the collimating lens cannot achieve the best light collection for each chip. For example, for a four-in-one RGBW chip, the optical expansion amount of each chip is only about 25%. The small optical expansion amount results in poor light efficiency and low illuminance. In particular, it is difficult to change or effectively adjust the uniformity of the light spot or the illuminance distribution of the current stage light source products on the market. Therefore, it is necessary to further enrich the light-emitting effect of the stage light source module. Summary of the Utility Model

[0003] The utility model aims to overcome at least one defect of the above-mentioned prior art, and provides a light source device, the light source device can make the illuminance of the emitted light spot present at least two different effects, and the light source device has a small volume and a compact structure.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A light source device comprises a substrate, an LED array, a collimating lens assembly, a light homogenizing assembly and a converging lens assembly, wherein the LED array is composed of a plurality of LED light-emitting bodies arranged on the substrate and in an array, the collimating lens assembly is used to gather and / or collimate the light emitted by the LED light-emitting bodies, the converging lens assembly is used to converge the light to a preset surface to form a light spot, and the collimating lens assembly, the light homogenizing assembly and the converging lens assembly are arranged in sequence along the light emitting direction of the LED array; the light source device also comprises a first adjustment mechanism, the light homogenizing assembly comprises a first light homogenizing member that makes the illumination of the light spot present a Gaussian-like distribution and a second light homogenizing member that makes the illumination of the light spot present a flat-top-like distribution, and the first adjustment mechanism is used to adjust the first light homogenizing member and the second light homogenizing member so that the two are relatively displaced and one of them can be located on the light path of the LED array.

[0006] In one embodiment, the first adjustment mechanism includes a first guide member for guiding the directional movement of the first light diffuser, a second guide member for guiding the directional movement of the second light diffuser, and a driving member for driving the first light diffuser and the second light diffuser to move in opposite directions.

[0007] In one embodiment, the driving member includes a motor provided with a gear and a rack set meshing with the gear, and the rack set includes a first rack connected to the first light diffuser and a second rack connected to the second light diffuser.

[0008] In one embodiment, the motor with a gear is an ultrasonic motor, and the first rack and the second rack are located on two opposite sides of the gear and are arranged in parallel.

[0009] In one embodiment, the first guide member is two first linear optical axes arranged on two opposite sides of the first light homogenizer, and the second guide member is two second linear optical axes arranged on two opposite sides of the second light homogenizer, and the first linear optical axis is parallel to the second linear optical axis.

[0010] In one embodiment, the first light homogenizer includes a diffuser and a first bracket for mounting the diffuser, the first rack is fixedly connected to the first bracket, two opposite sides of the first bracket are provided with first connecting parts, the first connecting part is sleeved on the first linear optical axis and is slidably connected to the first linear optical axis; the second light homogenizer includes a fly-eye lens pair and a second bracket for mounting the fly-eye lens pair, the second rack is fixedly connected to the second bracket, two opposite sides of the second bracket are provided with second connecting parts, the second connecting part is sleeved on the second linear optical axis and is slidably connected to the second linear optical axis.

[0011] In one of the embodiments, the light source device further includes a positioning member for positioning the moving positions of the first light uniforming member and the second light uniforming member.

[0012] In one embodiment, the LED light-emitting body includes at least two different first LED light-emitting units and second LED light-emitting units, a plurality of first LED light-emitting units constitute a first LED array, and a plurality of second LED light-emitting units constitute a second LED array; the collimating lens assembly includes a plurality of lens units; the light source device also includes a second adjustment mechanism, and the second adjustment mechanism is used to adjust the collimating lens assembly so that the lens unit can be optionally aligned with the first LED array or the second LED array.

[0013] In one embodiment, the second adjustment mechanism includes a third guide member for guiding the directional movement of the collimating lens assembly, a second driving member for driving the collimating lens assembly to move directional along the third guide member, and a sliding member connected to the collimating lens assembly and slidably connected to the third guide member.

[0014] In one embodiment, the second driving member is a solenoid valve group, and the solenoid valve group includes at least two solenoid valves arranged on opposite sides of the collimating lens assembly.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the light homogenizing component of the present application includes a first light homogenizing component and a second light homogenizing component, the first light homogenizing component makes the illumination of the light spot present a Gaussian-like distribution, and the second light homogenizing component makes the illumination of the light spot present a flat-top-like distribution, and the two can be relatively displaced under the action of the first adjustment mechanism and one of them can be located on the light path of the LED array, so that the light of the LED array can obtain at least two light spots with different effects after the action of the light homogenizing component, enriching the function of the light source device, and because the first adjustment mechanism causes the first light homogenizing component and the second light homogenizing component to be relatively displaced, when one of the first light homogenizing component and the second light homogenizing component is located on the light path of the LED array, the other can be returned to the preset position, compared with the method of making the first light homogenizing component and the second light homogenizing component move synchronously in the same direction without relative displacement, this method of the present application can reduce the moving space occupied by the light homogenizing component, thereby reducing the volume of the light source device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded view of the light source device of Example 1.

[0017] Figure 2 This is an assembly diagram of the light source device of Example 1.

[0018] Figure 3 The figure is an assembly diagram of the light homogenizing component and the first linear optical axis and the second linear optical axis of Example 1.

[0019] Figure 4 This is an assembly diagram of the light homogenization component, the first adjustment mechanism, and the micro switch of Example 1.

[0020] Figure 5 It is a structural diagram of an ultrasonic motor.

[0021] Figure 6 It is an assembly drawing of the driving part.

[0022] Figure 7 It is an assembly drawing of the first light homogenizing part, the first linear optical axis and the first rack.

[0023] Figure 8 It is an assembly drawing of the second light homogenizing part, the second linear optical axis and the second rack.

[0024] Figure 9 It is a state diagram of the light homogenizing component in one mode.

[0025] Figure 10 It is a state diagram of the light homogenizing component in another mode.

[0026] Figure 11 It is a structural diagram of the LED array.

[0027] Figure 12 It is an assembly drawing of the substrate, the collimating lens assembly and the second adjusting mechanism.

[0028] Explanation of reference numerals: 1. Substrate; 2. LED array; 201. First LED light emitting unit; 202. Second LED light emitting unit; 3. Collimating lens assembly; 311. First collimating lens unit; 312. Second collimating lens unit; 32. Collimating lens bracket; 4. Light homogenizing component; 41. First light homogenizing part; 411. Diffusion sheet; 412. First bracket; 4121. First connecting part; 42. Second light homogenizing part; 421. Fly-eye lens pair; 422. Second bracket; 4221. Second connecting part; 5. Converging lens assembly; 51. Converging lens; 52. Lens retaining ring; 61. First linear optical axis; 62. Second linear optical axis; 63. Driving part; 631. Ultrasonic motor; 6311. Gear; 6321. First rack; 6322. Second rack; 7. Second adjusting mechanism; 71. Third linear optical axis; 72. Solenoid valve; 73. Sleeve; 74. Support base; 8. Microswitch; 9. Housing; 10. Mounting bracket. Detailed implementation manners

[0029] The drawings of the present utility model are only for illustrative purposes and should not be construed as a limitation to the present utility model. For better illustrating the following embodiments, some components in the drawings may be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] Embodiment 1

[0031] AsFigure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment 1 discloses a light source device, including a substrate 1, an LED array 2, a collimating lens assembly 3, a light homogenizing assembly 4 and a converging lens assembly 5, wherein the LED array 2 is composed of a plurality of LED light-emitting bodies arranged on the substrate 1 and arranged in an array, the collimating lens assembly 3 is used to gather and / or collimate the light emitted by the LED light-emitting bodies, the converging lens assembly 4 is used to converge the light to a preset surface to form a light spot, the collimating lens assembly 3, the light homogenizing assembly 4 and the converging lens assembly 5 are arranged in sequence along the light emitting direction of the LED array 2; the light source device also includes a first adjustment mechanism, the light homogenizing assembly 4 includes a first light homogenizing member 41 that makes the illumination of the light spot present a Gaussian-like distribution and a second light homogenizing member 42 that makes the illumination of the light spot present a flat-top-like distribution, the first adjustment mechanism is used to adjust the first light homogenizing member 41 and the second light homogenizing member 42 so that the two are relatively displaced and one of them can be located on the light path of the LED array 2.

[0032] In this embodiment, the substrate 1 is used to install the LED array 2 and carry other structures. The LED array 1 is composed of a number of LED light-emitting bodies. The light emitted by the LED light-emitting bodies is in a Lambertian distribution. Therefore, the collimating lens component 3 is used to gather and / or collimate the light with the Lambertian distribution to obtain nearly parallel light. The light-homogenizing component 4 homogenizes the nearly parallel light. The converging lens component 4 converges the homogenized light to a preset surface to form a light spot. In this embodiment, since the light-homogenizing component 4 includes a first light-homogenizing member 41 that makes the illumination of the light spot present a Gaussian-like distribution and a second light-homogenizing member 42 that makes the illumination of the light spot present a flat-top-like distribution, and the two can be relatively displaced under the action of the first adjustment mechanism and one of them can be located on the light path of the LED array 2, the light emitted by the LED light-emitting body can obtain at least two light spots with different effects after the light-homogenizing component 4 acts, enriching the function of the light source device. And because the first adjustment mechanism causes the first light homogenizer 41 and the second light homogenizer 42 to undergo relative displacement, when one of the first light homogenizer 41 and the second light homogenizer 42 is located on the light path of the LED array 2, the other can be returned to the preset position. Compared with the method of causing the first light homogenizer 41 and the second light homogenizer 42 to move synchronously in the same direction without causing relative displacement between the two, this method of the present embodiment can reduce the moving space occupied by the light homogenizer component 4, thereby reducing the volume of the light source device.

[0033] Further, in this embodiment, the first adjustment mechanism includes a first guide member for guiding the directional movement of the first light homogenizing member 41, a second guide member for guiding the directional movement of the second light homogenizing member 42, and a driving member 63 for driving the first light homogenizing member 41 and the second light homogenizing member 42 to move directionally in opposite directions. The driving member 63 provides driving force for the directional movement of the first light homogenizing member 41 and the second light homogenizing member 42. Since one driving member 63 can cause the first light homogenizing member 41 and the second light homogenizing member 42 to move in opposite directions, the components of the light source device can be simplified, the volume of the light source device can be reduced, and the structure of the light source device can be made more compact. The first guide member guides the movement of the first light homogenizing member 41, and the second guide member guides the movement of the second light homogenizing member 42.

[0034] Further, Figure 5 、 Figure 6 As shown, in this embodiment, the driving member 63 includes a motor provided with a gear 6311 and a rack group engaged with the gear 6311. The rack group includes a first rack 6321 connected to the first light homogenizing member 41 and a second rack 6322 connected to the second light homogenizing member 42. More specifically, the motor provided with the gear 6311 is an ultrasonic motor 631, and the first rack 6321 and the second rack 6322 are located on two opposite sides of the gear 6311 and are arranged in parallel. Since the rack group is engaged with the gear 6311, and the first rack 6321 and the second rack 6322 are located on two opposite sides of the gear 6311 and are arranged in parallel, when the ultrasonic motor works, the gear 6311 rotates, driving the first rack 6321 and the second rack 6322 to move in opposite directions. Also, since the first light homogenizing member 41 is connected to the first rack 6321 and the second light homogenizing member 42 is connected to the second rack 6322, the first light homogenizing member 41 and the second light homogenizing member 42 can be driven to move in opposite directions, so that one of them can be moved to the light path of the LED array 2. When it is necessary to move the other one to the light path of the LED array 2, the ultrasonic motor 631 can be reversed. Thus, the positions of the first light homogenizing member 41 and the second light homogenizing member 42 in the light homogenizing assembly 4 can be adjusted, different spot effects can be emitted, and finally the multi-functionality of the spot effect of the light source device can be realized.

[0035] Further, the first guide member is two first linear optical axes 61 arranged on two opposite sides of the first light homogenizing member 41, the second guide member is two second linear optical axes 62 arranged on two opposite sides of the second light homogenizing member 42, and the first linear optical axis 61 is parallel to the second linear optical axis 62.

[0036] More specifically, as Figure 1 、 Figures 3 to 8As shown, the first light homogenizing member 41 includes a diffusion sheet 411 and a first bracket 412 for mounting the diffusion sheet 411. The first rack 6321 is fixedly connected to the first bracket 412. Two opposite sides of the first bracket 412 are provided with first connecting portions 4121. The first connecting portions 4121 are sleeved on the first linear optical axis 61 and are slidably connected to the first linear optical axis 61. The second light homogenizing member 42 includes a fly-eye lens pair 421 and a second bracket 422 for mounting the fly-eye lens pair 421. The second rack 6322 is fixedly connected to the second bracket 422. Two opposite sides of the second bracket 422 are provided with second connecting portions 4221. The second connecting portions 4221 are sleeved on the second linear optical axis 62 and are slidably connected to the second linear optical axis 62.

[0037] Further, as Figure 4 , Figure 9 , Figure 10 shown, the light source device further includes a positioning member for positioning the moving positions of the first light homogenizing member 41 and the second light homogenizing member 42. Specifically, the positioning member is a microswitch 8. More specifically, in this embodiment, the number of microswitches 8 is two, which respectively realize the positioning of the first light homogenizing member 41 and the second light homogenizing member 42. Further, in this embodiment, the microswitch 8 is set to position the extreme positions when the first light homogenizing member 41 and the second light homogenizing member 42 move to the optical path of the LED array 2. Its working principle is as follows: A driving board is externally provided, and the two microswitches 8, the ultrasonic motor 631 and the driving board are connected. When the first light homogenizing member 41 touches one of the microswitches 8 during the movement process, the microswitch 8 will switch from the high-level mode to the low-level mode. After the driving board receives this level signal, it stops supplying power to the ultrasonic motor 631, and the ultrasonic motor 631 immediately stops working. At this time, the first light homogenizing member 41 moves into the optical path of the LED array 2, and the second light homogenizing member 42 moves out of the optical path of the LED array 2. When the second light homogenizing member 42 touches the other microswitch 8 during the movement process, the microswitch 8 will switch from the high-level mode to the low-level mode. After the driving board receives this level signal, it stops supplying power to the ultrasonic motor 631, and the ultrasonic motor 631 immediately stops working. At this time, the second light homogenizing member 42 moves into the optical path of the LED array 2, and the first light homogenizing member 41 moves out of the optical path of the LED array 2. In other embodiments, the microswitch 8 can also be set to position the extreme positions when the first light homogenizing member 41 and the second light homogenizing member 42 move out of the optical path of the LED array 2, that is, opposite to the positioning method of this Embodiment 1. When the first light homogenizing member 41 or the second light homogenizing member 42 touches the microswitch, it indicates that the second light homogenizing member 41 or the first light homogenizing member 42 moves into the optical path of the LED array 2.

[0038] Further, as Figure 1 , 11As shown, the LED light emitter includes two different first LED light-emitting units 201 and second LED light-emitting units 202. A number of first LED light-emitting units form a first LED array, and a number of second LED light-emitting units form a second LED array; the collimating lens assembly 3 includes a number of lens units; the light source device further includes a second adjusting mechanism 7, and the second adjusting mechanism 7 is used to adjust the collimating lens assembly 3 so that the lens units can optionally be aligned with the first LED array or the second LED array. In this embodiment, two types of LED light-emitting units are provided, and the second adjusting mechanism 7 is provided to adjust the relative position of the collimating lens assembly 3 and the LED light emitter, so that the collimation of the two different LED light-emitting units can be achieved through the collimating lens assembly 3, and two different light-effect rays can be emitted. Also, since the first adjusting mechanism can adjust the displacement of different light homogenizing members on the optical path of the LED array, at least 4 different light effects can be achieved, greatly enriching the functions of the light source device. In other embodiments, the LED light emitter may further include 3, 4 or even more types of LED light-emitting units, further enriching the functions of the light source device.

[0039] Further, the second adjusting mechanism 7 includes a third guiding member for guiding the directional movement of the collimating lens assembly 3, a second driving member for driving the collimating lens assembly 3 to move directionally along the third guiding member, and a sliding member connected to the collimating lens assembly 3 and slidably connected to the third guiding member.

[0040] Further, as Figure 1 、 Figure 12As shown, the second driving member is a solenoid valve group, and the solenoid valve group includes at least two solenoid valves 72 disposed on opposite sides of the collimating lens assembly. More specifically, in this embodiment, the solenoid valve group includes 4 solenoid valves 72, and the four solenoid valves 72 are pairwise opposite and located on opposite sides of the collimating lens assembly 3. The third guiding member is two third linear optical axes 71 disposed on two opposite sides of the collimating lens assembly 3. More specifically, in this embodiment, the third linear optical axes 71 are perpendicular to the first linear optical axis 61 and the second linear optical axis 62. The sliding member is a bushing 73 slidably connected to the two third linear optical axes 71. More specifically, in this embodiment, the number of bushings slidably connected to the third linear optical axes 71 is 4, and they are respectively located at positions close to the ends of the third linear optical axes 71. The bushing 73 is disposed on the collimating lens bracket 32 and fixedly connected to the collimating lens bracket 32. Further, in this embodiment, on two opposite sides of the collimating lens assembly 3, there are also support bases 74 for fixedly mounting the third linear optical axes 71, and the support bases 74 are fixedly disposed on the substrate 1. Since the two third linear optical axes 71 are fixedly disposed on the support bases 74, and the support bases 74 are fixedly disposed on the substrate 1, the third linear optical axes 71 are fixed. When the solenoid valve 72 drives the collimating lens assembly 3 to move, the bushing 73 can slide along the third linear optical axes 71, thereby realizing the directional movement of the collimating lens assembly 3. More specifically, in this embodiment, the precise positioning of the moving position of the collimating lens assembly 3 is achieved by the collision between the support base 74 and the collimating lens bracket 32. When the collimating lens bracket 32 collides with the support base 74 during movement, the collimating lens bracket 32 will no longer move and reaches the preset position.

[0041] Further, in this embodiment, the lens unit includes a first collimating lens unit 311 and a second collimating lens unit 312 that are optically centered one by one. The collimating lens bracket 32 is provided with a plurality of through holes for mounting the first collimating lens unit, and a plurality of the second collimating lens units 312 are integrally formed into an array lens, and the array lens is mounted on the collimating lens bracket 32.

[0042] Further, the converging lens assembly 5 includes a converging lens 51 and a lens retaining ring 52 for fixing the converging lens 51 on the housing 9.

[0043] Further, the first linear optical axis 61, the second linear optical axis 62, and the micro switch 8 are all mounted on the housing 9

[0044] Further, the light source device further includes a mounting bracket 10, and the substrate 1 and the housing 9 are both fixedly disposed on the mounting bracket 10, thereby realizing the fixed connection between the housing 9 and the substrate 1 and realizing the assembly of the entire light source device.

[0045] Obviously, the above embodiments of the present utility model are merely examples for clearly explaining the technical solutions of the present utility model, rather than limitations on the specific implementation manners of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the claims of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A light source device, comprising a substrate, an LED array, a collimating lens assembly, a light homogenizing assembly, and a converging lens assembly. The LED array is composed of a plurality of LED light emitters arranged in an array on the substrate. The collimating lens assembly is used to converge and / or collimate the light emitted by the LED light emitters. The converging lens assembly is used to converge the light to a preset surface to form a light spot. The collimating lens assembly, the light homogenizing assembly, and the converging lens assembly are arranged in sequence along the light-emitting direction of the LED array; characterized in that, The light source device further includes a first adjustment mechanism. The light homogenizing component includes a first light homogenizing member that makes the illuminance of the light spot present a quasi-Gaussian distribution and a second light homogenizing member that makes the illuminance of the light spot present a quasi-flat-top distribution. The first adjustment mechanism is used to adjust the first light homogenizing member and the second light homogenizing member to make them have a relative displacement and enable one of them to be located on the optical path of the LED array.

2. The light source device according to claim 1, wherein The first adjustment mechanism includes a first guiding member for guiding the directional movement of the first light homogenizing member, a second guiding member for guiding the directional movement of the second light homogenizing member, and a driving member for driving the first light homogenizing member and the second light homogenizing member to move directionally in opposite directions.

3. The light source device according to claim 2, wherein The driving member includes a motor provided with a gear and a rack group engaged with the gear. The rack group includes a first rack connected to the first light homogenizing member and a second rack connected to the second light homogenizing member.

4. The light source device according to claim 3, characterized in that, The motor provided with the gear is an ultrasonic motor. The first rack and the second rack are located on two opposite sides of the gear and are arranged in parallel.

5. The light source device according to claim 3, wherein The first guiding member is two first linear optical axes arranged on two opposite sides of the first light homogenizing member. The second guiding member is two second linear optical axes arranged on two opposite sides of the second light homogenizing member. The first linear optical axis is parallel to the second linear optical axis.

6. The light source device according to claim 5, wherein, The first light homogenizing member includes a diffuser and a first bracket for mounting the diffuser. The first rack is fixedly connected to the first bracket. First connecting portions are provided on two opposite sides of the first bracket. The first connecting portions are sleeved on the first linear optical axes and are slidably connected to the first linear optical axes. The second light homogenizing member includes a compound eye lens pair and a second bracket for mounting the compound eye lens pair. The second rack is fixedly connected to the second bracket. Second connecting portions are provided on two opposite sides of the second bracket. The second connecting portions are sleeved on the second linear optical axes and are slidably connected to the second linear optical axes.

7. The light source device according to claim 1, wherein, The light source device further includes a positioning member for positioning the moving positions of the first light homogenizing member and the second light homogenizing member.

8. The light source device according to any one of claims 1 to 7, characterized in that, The LED light emitter includes at least two different first LED light emitting units and second LED light emitting units. A plurality of first LED light emitting units form a first LED array, and a plurality of second LED light emitting units form a second LED array. The collimating lens assembly includes a plurality of lens units. The light source device further includes a second adjustment mechanism. The second adjustment mechanism is used to adjust the collimating lens assembly so that the lens units can optionally be aligned with the first LED array or the second LED array.

9. The light source device according to claim 8, wherein, The second adjustment mechanism includes a third guiding member for guiding the directional movement of the collimating lens assembly, a second driving member for driving the collimating lens assembly to move directionally along the third guiding member, and a sliding member connected to the collimating lens assembly and slidably connected to the third guiding member.

10. The light source device according to claim 9, characterized in that, The second driving member is a solenoid valve group. The solenoid valve group includes at least two solenoid valves arranged on opposite sides of the collimating lens assembly.

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