Dimming device

Abstract

The utility model provides a dimming device which comprises a light source, a shell, a collimation piece and a light guide piece, the collimation piece can rotate or translate relative to the shell under the action of external force so that the axis of the collimation piece can be aligned with the optical axis of the light source, and the light guide piece can rotate or translate relative to the shell under the action of external force so that light emitted from the light guide piece can be emitted in the preset direction. When the emergent angle of the emergent light needs to be adjusted, the positions of the collimation piece and the light guide piece are adjusted through the adjusting device under the action of external force, the light adjusting effect of the collimation piece and the light guide piece is changed accordingly, and the propagation angle of the emergent light of the dimming device is adjusted so as to adapt to more environments. In the period, the light guide piece and the collimating piece do not need to be disassembled, the propagation angle of the light can be adjusted only through external force, and the assembling efficiency and application universality of the dimming device are improved.

Description

Technical Field

[0001] This application relates to the technical field of light source devices, and particularly to a dimming device. Background Art

[0002] With the continuous upgrading and optimization of light source technologies, installers' pursuit of the color gamut, contrast ratio, and color of light sources is also increasing. The light source devices in the prior art combine the emitted lights of multiple monochromatic light sources and emit them, so that the light source device can have a wider color gamut, a higher contrast ratio, and more vivid colors.

[0003] The position of the dimming device of the light source device is fixed, and thus the emission angle of the combined light is relatively fixed. When it is necessary to adjust the emission angle of the light source device, it is often necessary to change the layout of multiple monochromatic light sources and the dimming device and re-assemble them. This adjustment method seriously affects the assembly efficiency of the light source device and reduces the application universality of the light source device. Utility Model Content

[0004] Embodiments of this application provide a dimming device to at least partially improve the above technical problems.

[0005] Embodiments of this application are implemented through the following technical solutions.

[0006] On the one hand, embodiments of this application provide a dimming device, including a light source, a housing, a collimator, and a light guide. The light source is used to emit light into the housing; the housing has an accommodation space, and after the light enters the accommodation space, it is received and collimated by the collimator. The light guide is used to guide the collimated light out of the accommodation space; the collimator and the light guide are movably matched with the housing. The collimator can rotate or translate relative to the housing under the action of an external force so that the axis of the collimator is aligned with the optical axis of the light source; the light guide can rotate or translate relative to the housing under the action of an external force so that the light emitted from the light guide can be emitted in a predetermined direction.

[0007] In one embodiment, the collimator includes a collimating optical part and a collimating adjustment part. The collimating adjustment part penetrates through the housing, and the collimating optical part is located in the accommodation space.

[0008] In one embodiment, the light guide includes a light guiding optical part and a light guiding adjustment part. The light guiding adjustment part penetrates through the housing, the light guiding optical part is located in the accommodation space, and the light guiding optical part is arranged above the collimating optical part.

[0009] In one embodiment, a first through hole and a second through hole are formed in the housing. At least a part of the collimating adjustment part is located in the first through hole, and at least a part of the light guiding adjustment part is located in the second through hole.

[0010] In one embodiment, the second through-hole includes a first part and a second part that communicate with each other. The first part is a circular hole, and the second part is a square hole. The second part of the second through-hole is disposed close to the accommodation space. The light guiding and adjusting part has a first part and a second part. The first part of the light guiding and adjusting part is matched with the first part of the second through-hole, and the second part of the light guiding and adjusting part is correspondingly disposed and has a clearance fit with the second part of the second through-hole. A connection structure adapted to be detachably connected to the adjusting device is provided on the first part of the light guiding and adjusting part.

[0011] In one embodiment, the connection structure provided on the first part of the light guiding and adjusting part is configured as a magnetic attraction member, and the magnetic attraction member is used for magnetic attraction with the adjusting device.

[0012] In one embodiment, the housing includes a first side plate and a second side plate. The first side plate and the second side plate enclose the accommodation space. The first through-hole is located on the first side plate, and the second side plate is provided with a third hole corresponding to the first through-hole. One end of the light guiding and adjusting part is embedded in the first through-hole, and the other end of the light guiding and adjusting part is embedded in the third hole.

[0013] In one embodiment, the number of the light sources is multiple, and the numbers of the collimating members and the light guiding members are both multiple. The multiple light sources are used for emitting light rays into the accommodation space and are incident on one of the collimating members one by one. The numbers of the first through-holes and the second through-holes are both multiple. The first through-holes are arranged in one-to-one correspondence with the collimating members, and the second through-holes are arranged in one-to-one correspondence with the light guiding members.

[0014] In one embodiment, the multiple light sources are respectively used for emitting a first light ray, a second light ray, and a third light ray. The multiple collimating members include a first collimating member, a second collimating member, and a third collimating member. The multiple light guiding members include a first light guiding member, a second light guiding member, and a third light guiding member. The first collimating member is used for receiving and collimating the first light ray. The first light guiding member is used for receiving the first light ray emitted by the first collimating member and reflecting the first light ray to the second light guiding member. The second collimating member is used for receiving and collimating the second light ray. The second light guiding member is used for receiving the second light ray emitted by the second collimating member and emitting the first light ray emitted by the first light guiding member and the second light ray after combining the light. The third collimating member is used for receiving and collimating the third light ray. The third light guiding member is used for receiving the third light ray emitted by the third collimating member and emitting the first light ray and the second light ray and the third light ray after combining the light emitted by the second light guiding member. The wavelength ranges of the first light ray, the second light ray, and the third light ray are different.

[0015] In one embodiment, the housing includes a first side plate and a second side plate, the first side plate and the second side plate enclose the accommodation space, the plurality of second through holes include a first sub-through hole, a second sub-through hole and a third sub-through hole, the first sub-through hole and the third sub-through hole are formed in the first side plate, the second sub-through hole is formed in the second side plate, at least a part of the light guiding and adjusting portion of the first light guiding member is disposed in the first sub-through hole, at least a part of the light guiding and adjusting portion of the second light guiding member is disposed in the second sub-through hole, and at least a part of the light guiding and adjusting portion of the third light guiding member is disposed in the third sub-through hole.

[0016] In the dimming device provided by the embodiment of the present application, after the light source emits light, the collimating member can collimate and transmit the light, and the light guiding member can guide the light transmitted through the collimating member so that it can propagate along a specified path. In addition, when it is necessary to adjust the emission angle of the emitted light, the positions of the collimating member and the light guiding member are adjusted by an external force acting on the adjusting device, and the adjusting effect of the collimating member and the light guiding member on the light changes accordingly, and the propagation angle of the emitted light of the dimming device is adjusted to adapt to more environments. During this period, it is not necessary to remove the light guiding member and the collimating member, and the propagation angle of the light can be adjusted only by an external force, which improves the assembly efficiency and application universality of the dimming device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0018] Figure 1 is a schematic structural diagram of a dimming device proposed by an embodiment of the present application;

[0019] Figure 2 is a schematic structural diagram of a bottom plate proposed by an embodiment of the present application;

[0020] Figure 3 is a schematic structural diagram of a dimming device from another perspective proposed by an embodiment of the present application;

[0021] Figure 4 is a side view of a housing proposed by an embodiment of the present application;

[0022] Figure 5 is a schematic structural diagram of a light guiding member proposed by an embodiment of the present application;

[0023] Figure 6 is Figure 4 a cross-sectional view taken along line A-A in

[0024] Figure 7Schematic optical path diagram of a dimming device according to another embodiment of the present application;

[0025] Figure 8 Schematic structural diagram of an optical detection system according to still another embodiment of the present application.

[0026] Reference numerals: optical detection system 1, dimming device 100, light source 110, bottom plate 111, mounting groove 112, first light source 113, second light source 114, third light source 115, housing 120, connecting plate 121, first side plate 122, second side plate 123, first through hole 124, second through hole 125, first part 125a, second part 125b, first sub-through hole 1251, second sub-through hole 1252, third sub-through hole 1253, third hole 126, accommodating space 127, collimator 130, collimating optical part 131, collimation adjusting part 132, first collimator 133, second collimator 134, third collimator 135, light guiding member 140, light guiding optical part 141, light guiding adjusting part 142, rotating part 142a, carrying part 142b, groove 143, first light guiding member 144, second light guiding member 145, third light guiding member 146, aperture 200, optical receiver 300, adjusting device 2. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

[0029] In this embodiment, a dimming device 100 is provided. Please refer to Figure 1 and Figure 2 , the dimming device 100 may include a light source 110 ( Figure 1(not shown), a housing 120, a collimator 130, and a light guide 140. The light source 110 is configured to emit light into the housing 120. The housing 120 has an accommodation space 127. After the light enters the accommodation space 127, it is received and collimated by the collimator 130. The light guide 140 is configured to guide the collimated light out of the accommodation space. The collimator 130 and the light guide 140 are movably engaged with the housing 120 and at least partially disposed within the housing 120. Under the action of an external force, the collimator can rotate or translate relative to the housing so that the axis of the collimator is aligned with the optical axis of the light source. Under the action of an external force, the light guide can rotate or translate relative to the housing so that the light emitted from the light guide exits the accommodation space in a predetermined direction.

[0030] The light source 110 can be a laser light source, a fluorescent light source, etc. Among them, the laser light source is used to emit laser light, and the laser has characteristics such as high coherence. The fluorescent light source is used to emit fluorescent light. The fluorescent light source has a lower cost and a wider application. The present embodiment does not limit the type and quantity of the light source 110, etc. The housing 120 can be a metal housing, such as stainless steel, aluminum alloy, copper, etc. The metal housing has characteristics such as high strength and high thermal conductivity. The metal housing can further improve the protection effect of the collimator 130 and the light guide 140. It can also dissipate the surface heat of the collimator 130 and the light guide 140, avoiding heat accumulation in the collimator 130 and the light guide 140, and improving the use safety of the dimming device 100. In addition, in some other embodiments, the housing 120 can also be a plastic housing, a ceramic housing, etc., which will not be elaborated in this embodiment.

[0031] Please continue to refer to Figure 2 , the dimming device further includes a bottom plate 111. The light source is mounted on the bottom plate 111. The bottom plate 111 is provided with mounting holes 112. The shape of the mounting holes 112 can be circular, rectangular, triangular, or other irregular shapes, etc. This embodiment does not limit it. The light source is mounted on the bottom plate 111 through the mounting holes 112. The bottom plate 111 communicates with the accommodation space 127 of the housing 120. The light emitted by the light source 110 can directly enter the accommodation space 127.

[0032] The collimator 130 is at least partially located within the accommodation space 127, and is configured to receive and collimate the light incident on the accommodation space 127. The collimator 130 is also movably engaged with the housing 120, and the collimator can rotate or translate relative to the housing under an external force so that the axis of the collimator is aligned with the optical axis of the light source. Specifically, the collimator 130 is an element that can adjust the propagation direction and propagation range of the light beam, which can improve the collimation and directivity of the light, and reduce the diffusion and energy loss of the light. Exemplarily, the collimator 130 can include a transmissive collimator, such as a collimating lens; or it can be a reflective collimator, such as a collimating mirror, and the present embodiment does not limit this. For ease of understanding, the collimator 130 is described as a lens collimator in this article.

[0033] Further, the collimator 130 can include a collimating optical portion 131 and a collimating adjustment portion 132. The collimating optical portion 131 includes, but is not limited to, a collimating lens, a collimating mirror, etc. The collimating adjustment portion 132 can be a slider, a rotating block, etc., and its specific structure can be a cylinder or a cube, etc., and the present embodiment does not limit this. The collimating adjustment portion 132 is passed through the housing 120, and the collimating optical portion 131 is located within the accommodation space 128. The collimating adjustment portion 132 is connected to the collimating optical portion 131, and the collimating optical portion 131 can rotate or translate under the drive of the collimating adjustment portion 132. The installer can directly push the collimating adjustment portion 132 with a finger or use other devices to drive the collimating adjustment portion 132 to move, so as to change the position of the collimating optical portion 131, and further align the axis of the collimator with the optical axis of the light source. Further, the collimating optical portion includes a collimator mounting base and a collimating lens, and the collimator mounting base is provided with a light-transmitting hole, and the collimating lens is mounted within the light-transmitting hole.

[0034] In this embodiment, please refer back to Figure 1 , at least a part of the light guiding member 140 is located within the accommodation space 127, and is configured to receive and guide the collimated light emitted from the collimator 130 to exit from the accommodation space 127. The light guiding member 140 can rotate or translate relative to the housing 120 under an external force so that the light emitted from the light guiding member 140 can be emitted along a predetermined direction. The position adjustable setting of the light guiding member 140 in this embodiment can change the guiding effect of the light guiding member 140 on the light, so that the light meets the subsequent usage requirements.

[0035] Further, the light guiding member 140 may include a light guiding optical portion 141 and a light guiding adjustment portion 142. The light guiding adjustment portion 142 passes through the housing 120, and the light guiding optical portion 141 is located within the accommodation space 127. The light guiding optical portion 141 is disposed above the collimating optical portion 131. Exemplarily, the light guiding optical portion 141 may be a mirror or a beam splitter. The beam splitter can achieve control of reflection and transmission of different light beams. The beam splitter can transmit light in the first wavelength band and reflect light in the second wavelength band, and the wavelength ranges of the first wavelength band and the second wavelength band are different. Exemplarily, the beam splitter may be a red-reflecting and green / blue-transmitting beam splitter, which can reflect light in the red wavelength band and transmit light in the green and blue wavelength bands. The red wavelength band may refer to light with a wavelength range of 625 nm - 740 nm, the green wavelength band may refer to light with a wavelength range of 492 nm - 577 nm, and the blue wavelength band may refer to light with a wavelength range of 440 nm - 475 nm.

[0036] In this embodiment, a first through hole 124 and a second through hole 125 are formed in the housing 120. The first through hole 124 and the second through hole 125 can be used to mount the collimating member 130 and the light guiding member 140. Specifically, at least a part of the collimating adjustment portion is located within the first through hole, and at least a part of the light guiding adjustment portion is located within the second through hole. The first through hole 124 and / or the second through hole 125 can be configured as a circular hole, a square hole, a triangular hole, or other irregular shapes, etc., and this embodiment does not limit it.

[0037] In a more specific implementation manner, please continue to refer to Figure 1 , at least a part of the collimating adjustment portion 132 is embedded in the first through hole 124 of the housing 120, and the collimating adjustment portion 132 can be slidably disposed relative to the housing. Further, the collimating adjustment portion 132 can translate along the axis direction of the first through hole 125 or slide around the axis direction of the first through hole 125. In addition, the collimating adjustment portion 132 can also be in interference fit with the first through hole 125. The interference fit setting can cause a certain resistance when the collimating adjustment portion 132 slides, slow down the sliding speed of the collimating adjustment portion 132, avoid excessive sliding of the collimating adjustment portion 132, and facilitate the installer to adjust the collimating member 130.

[0038] Preferably, the collimating optical portion 131 can be disposed with a gap from the housing, and this gap can ensure that the collimating member 130 has a certain adjustment space, avoid interference of the housing with the movement of the collimating member 130, and ensure the adjustability of the collimating member 130 within a certain range.

[0039] In a more specific implementation manner, please refer to Figure 1, the light guiding adjustment part 142 is at least partially embedded in the second through hole 125, and the light guiding adjustment part 142 is movable relative to the housing 120. For example, the light guiding adjustment part 142 can be rotatably arranged around the second through hole 125. When at least part of the light guiding adjustment part 142 is embedded in the second through hole 125, one end of the light guiding optical part 141 can abut against the housing, so that the light guiding part 140 is constrained between the housing walls. This setting further improves the stability of the light guiding part 140. It can be understood that the installer can use the light guiding part 140 to change the outgoing direction of the combined light and ensure the light combining effect of the light guiding part 140. After determining the position of the beam splitting part, the light guiding part 140 is fixed to the housing 120 by means of bonding or fastening connection, etc. In other embodiments, refer to Figure 3 , there may also be a certain gap between the light guiding optical part 141 and the housing to facilitate the smooth rotation of the light guiding part 140.

[0040] In a specific implementation manner of this embodiment, refer to Figure 4 , Figure 4 is a schematic structural diagram of the housing in the embodiment of the present application. The second through hole 125 may include a first part 125a and a second part 125b that communicate with each other. The first part 125a may be arranged on the side of the second part 125b away from the second side plate 123, and the second part of the second through hole is close to the accommodating space. The first part 125a is a circular hole, and the second part 125b is a square hole, and the circular hole and the square hole communicate with each other. In other words, the cross section of the first part 125a is circular, and the cross section of the second part 125b is square.

[0041] Please refer to Figure 5, the light guide adjustment part 142 has a first part and a second part. The first part of the light guide adjustment part 142 cooperates with the first part 125a of the second through hole 125, and the second part of the light guide adjustment part 142 is correspondingly arranged with the second part 125b of the second through hole 125 and has a clearance fit. In a specific embodiment, the first part of the light guide member 140 may be a rotating part 142a, and the second part of the light guide member 140 may be a bearing part 142b. Specifically, the cross-section of the rotating part 142a may be circular and is correspondingly arranged with the first part 125a. At least part of the rotating part 142a is embedded in the first part 125a of the second through hole, and the cooperation between the rotating part 142a and the first part 125a of the second through hole can determine that the light guide adjustment part 142 rotates in the second through hole. The cross-section of the bearing part 142b may be a square hole and is correspondingly arranged with the second part 125b of the second through hole. At least part of the bearing part 142b is embedded in the second part 125b of the second through hole and has a clearance fit with the second part 125b of the second through hole. Since it is set as a square hole, the second part 125b of the second through hole can limit the rotation range of the light guide adjustment part 142, and the second part 125b of the second through hole can abut against the bearing part 142b to prevent the light guide member 140 from easily shifting its position due to uneven gravity distribution. And, because of the clearance fit setting, the light guide adjustment part 142 can have a certain degree of adjustability, improving the stability and use effect of the light guide member 140.

[0042] In addition, a connection structure adapted to be detachably connected to the adjustment device 2 is provided on the first part of the light guide adjustment part 142. Among them, since it is not convenient for the installer to manually rotate the light guide member 140, the installer can adjust the light guide member 140 through the adjustment device 2. When in use, the installer connects the adjustment device 2 to the connection structure and drives the light guide adjustment part 142 to rotate through the adjustment device 2 to change the inclination angle of the light guide optical part, further change the guiding effect of the light guide optical part on the light, and make the light meet the subsequent use requirements, which is convenient for the installer to make a small amount of adjustment. After the light guide member 140 is installed, the installer can disassemble between the adjustment device 2 and the light guide member 140 to prevent the adjustment device 2 from interfering with the assembly of the subsequent dimming device 100.

[0043] In a specific embodiment, refer to Figure 1, the connection structure provided on the light guiding adjustment part 142 is specifically a groove 143, and the groove 143 faces the side of the light guiding adjustment part 142 away from the light guiding optical part 141. Among them, the groove 143 can be a rectangular groove, a flat groove, a wavy groove, or other irregularly shaped grooves, etc., and this implementation does not enumerate them. The adjusting device 2 can be correspondingly provided with bumps of the same shape, and the adjusting device 2 can be inserted into the groove 143. The adjusting device 2 inserted into the groove 143 selectively drives the light guiding adjustment part 142 to rotate the light guiding adjustment part 142 around the axis direction of the second through hole 126, thereby completing the position adjustment of the light guiding optical part 141. The groove 143 structure is simpler and more reliable, and the operation mode of the adjusting device 2 is simple and convenient to operate.

[0044] In addition, the collimation adjustment part 132 can also be provided with a connection structure suitable for being detachably connected to the adjusting device 2, and this implementation does not limit it.

[0045] In one implementation, at least one of the connection structures of the collimation adjustment part 132 and the light guiding adjustment part 142 can be configured as a magnetic attracting member, and the magnetic attracting member is used for magnetic adsorption with the adjusting device 2. The magnetic attracting member can be a metal or a magnet, and the adjusting device 2 can be correspondingly made of a magnet or a metal, and can be specifically set according to actual situations. The magnetic attracting member and the adjusting device 2 are magnetically adsorbed, and the adjusting device 2 can drive the connection structure of the collimation adjustment part 132 and / or the light guiding adjustment part 142 to translate or rotate, so that the collimating member 130 and / or the light guiding member 140 are adjusted. The magnetically adsorbed structure can reduce the friction between the adjusting device 2 and the connection structure, and improve the service life of the light regulating device 100. At the same time, the adjusting device 2 can be an electromagnet, and its magnetism is controllable, which is convenient for the subsequent detachment of the adjusting device 2 and the light regulating device 100, and avoids the adjusting device 2 detaching from the connection structure and affecting the position accuracy of the light regulating device 100 after adjustment.

[0046] In another implementation, at least one of the connection structures provided on the collimation adjustment part 132 and the light guiding adjustment part 142 is configured as a vacuum suction nozzle (not shown in the figure), and the vacuum suction nozzle is used for vacuum adsorption with the adjusting device 2. The vacuum adsorption structure can reduce the friction between the adjusting device 2 and the connection structure, and improve the service life of the light regulating device 100. The vacuum adsorption method can also facilitate the subsequent detachment of the adjusting device 2 and the light regulating device 100, and avoid the adjusting device 2 affecting the position accuracy of the light regulating device 120 after adjustment. In addition, the vacuum adsorption structure can also be applied to more special scenarios, such as high-temperature scenarios, etc.

[0047] After the adjustment of the optical guide 140 is completed, the adjustment device 2 is detached from the optical guide adjustment part 142. During this period, the adjustment device 2 may take the optical guide adjustment part 142 away from the second through hole 126, thereby affecting the assembly accuracy of the optical guide 140. Preferably, please continue to refer to Figure 2 , in this embodiment, the optical guide adjustment part 142 can be threadedly connected to the second through hole 126. The optical guide adjustment part 142 can rotate around the axis of the second through hole 126 and will not directly slide along the axis of the second through hole 126, which prevents the optical guide adjustment part 142 from being directly taken away from the second through hole 126 by the adjustment device 2. In addition, the optical guide adjustment part 142 can also limit the movement range of the optical guide adjustment part 142 through a limiting structure, etc., improving the position accuracy of the optical guide 140.

[0048] In addition, in another case, the installer can directly twist or push the collimation adjustment part 132 and the optical guide adjustment part 142 by hand, reducing the installation process, improving the installation speed, and further improving the installation efficiency of the installer.

[0049] Further, please continue to refer to Figure 1 , the housing 120 may further include a first side plate 122 and a second side plate 123, and the first side plate 122 and the second side plate 123 enclose the accommodation space 128. The first through hole 124 and the second through hole 125 are both opened on the first side plate 122 or the second side plate 123, that is, the first through hole 124 and the second through hole 125 are opened on the same side of the accommodation space 127. In another specific implementation manner, one of the first through hole 124 and the second through hole 125 is opened on the first side plate 122, and the other is opened on the second side plate 123, that is, the first through hole 124 and the second through hole 125 are respectively arranged on both sides of the accommodation space 127, and this embodiment does not limit it. In a specific implementation manner, the first through hole is located on the first side plate, please refer to Figure 6, a third hole 126 is further formed in the second side plate, and the third hole 126 is arranged corresponding to the first through hole 124. The shapes, size parameters, etc. of the first through hole 124 and the third hole 126 can be configured to be the same. For example, both the first through hole 124 and the third hole 126 are rectangular holes. At least part of the collimation adjustment part 132 is embedded in the third hole 126. In other words, the opposite ends of the collimation adjustment part 132 can be respectively arranged in the first through hole and the third hole 126. The first through hole 125 and the third hole 126 cooperate with each other, enabling the collimation adjustment part 132 to have a more definite sliding path and ensuring that the collimation adjustment part 132 can be stably adjusted. In addition, the third hole 126 can prevent the second side plate 123 from interfering with the movement of the collimation member 130 relative to the first side plate 122, so that the collimation member 130 has a larger adjustment range. Moreover, when fixing the collimation member 130 subsequently, the installer can also bond the hole wall of the third hole 126 and the collimation member 130 to further improve the fixing effect of the collimation member 130.

[0050] In a specific embodiment, the housing 120 further includes a connecting plate 121. The first side plate 122 and the second side plate 123 are both connected to the connecting plate 121, and the first side plate 122 and the second side plate 123 are arranged opposite to each other. The connecting plate 121, the first side plate 122, and the second side plate 123 can be integrally formed to further improve the structural strength and stability of the housing 120. In another case, the first side plate 122 and the second side plate 123 are detachably connected to the connecting plate 121. The detachably arranged housing 120 can reduce the maintenance difficulty and cost of the housing 120, and also facilitate the installation of the collimation member 130 and the light guiding member 140. In other embodiments, the housing 120 may not be provided with the connecting plate 121, and the first side plate 122 and the second side plate 123 can be directly installed on the bottom plate.

[0051] In the dimming device provided by the embodiment of the present application, after the light source emits light, the collimation member can collimate and transmit the light, and the light guiding member can guide the light transmitted through the collimation member so that it can propagate along a specified path. In addition, when it is necessary to adjust the emission angle of the emitted light, the positions of the collimation member and the light guiding member are adjusted through an external force acting on the adjusting device, and the adjustment effects of the collimation member and the light guiding member on the light change accordingly, adjusting the propagation angle of the emitted light of the dimming device to adapt to more environments. During this period, it is not necessary to remove the light guiding member and the collimation member, and only by applying an external force can the propagation angle of the light be adjusted, improving the assembly efficiency and application versatility of the dimming device.

[0052] In another embodiment of this case, please refer to Figure 7, the number of light sources 110 can be multiple, and the number of collimators and light guides are both multiple. The multiple light sources 110 are used to emit light towards the accommodation space 127 and are incident on one collimator 130 in a one-to-one correspondence. The number of the first through holes and the second through holes are both multiple. The multiple first through holes are arranged in one-to-one correspondence with the multiple collimators, and the multiple second through holes are arranged in one-to-one correspondence with the multiple light guides. The multiple light rays emitted by the multiple light sources can be collimated by the multiple collimators 130. At the same time, the multiple light rays can also be guided by the multiple light guides 140 into a specified path, so that the multiple light rays are combined and propagate along the specified path to meet subsequent usage requirements.

[0053] In a more specific embodiment, the multiple light sources 110 are respectively used to emit a first light ray, a second light ray, and a third light ray. Exemplarily, the multiple light sources 110 include a first light source 113, a second light source 114, and a third light source 115. The first light source 113 is used to emit the first light ray, the second light source 114 is used to emit the second light ray, and the third light source 115 is used to emit the third light ray. The wavelength ranges of the first light ray, the second light ray, and the third light ray are different. For example, the first light ray can be a red light with a wavelength range of 625 nm - 740 nm, the second light ray can be a green light with a wavelength range of 492 nm - 577 nm, and the first light ray can be a blue light with a wavelength range of 440 nm - 475 nm.

[0054] Correspondingly, please refer back to Figure 7 , the multiple collimators 130 include a first collimator 133, a second collimator 134, and a third collimator 135, and the multiple light guides 140 include a first light guide 144, a second light guide 145, and a third light guide 146. The first collimator 133 can be arranged corresponding to the first light guide 144, the second collimator 134 can be arranged corresponding to the second light guide 145, and the third collimator 135 can be arranged corresponding to the third light guide 146.

[0055] The first collimator 133 is used to receive and collimate the first light ray. The first light guide 144 is used to receive the first light ray emitted by the first collimator 133 and reflect the first light ray to the second light guide 145. The second collimator 134 is used to receive and collimate the second light ray. The second light guide 145 is used to receive the second light ray emitted by the second collimator 134 and emit the first light ray and the second light ray after combining the first light ray emitted by the first light guide 144. The third collimator 135 is used to receive and collimate the third light ray. The third light guide 146 is used to receive the third light ray emitted by the third collimator 135 and emit the first light ray and the second light ray and the third light ray after combining the first light ray and the second light ray emitted by the second light guide 145.

[0056] Exemplarily, the first light ray is red light, and the first light guiding member 144 can be a green and blue transmitting and red reflecting beam splitter. The green and blue transmitting and red reflecting beam splitter can transmit green light and blue light and reflect red light. The second light ray is green light, and the second light guiding member 145 can be a red and blue transmitting and green reflecting beam splitter. The red and blue transmitting and green reflecting beam splitter can transmit red light and blue light and reflect green light. The third light ray is blue light, and the third light guiding member 146 can be a red and green transmitting and blue reflecting beam splitter. The red and green transmitting and blue reflecting beam splitter can transmit red light and green light and reflect blue light. Thus, the plurality of light guiding members 140 can combine and emit the first light ray, the second light ray, and the third light ray. In addition, since the light rays are collimated before being combined by the corresponding plurality of collimating members 130, the directivity and power of the combined light beam are higher, and the lighting effect is stronger.

[0057] It can be understood that to ensure the light combining effect of the dimming device 100, based on the foregoing various embodiments, in this embodiment, the light guiding members 140 and the collimating members 130 can be adjusted manually or by an adjusting device 2. When the number of the light guiding members 140 and the collimating members 130 is multiple, one of the plurality of collimating members 130 is preferentially adjusted. Based on the specific position of this collimating member 130 and the propagation path of the light ray guided by it, the remaining other collimating members 130 are adjusted in sequence. Then, the light guiding members 140 are set corresponding to the propagation paths of the light rays guided by the plurality of collimating members 130. In this embodiment, the adjustment sequence and adjustment method of the plurality of light guiding members 140 and the plurality of collimating members 130 are not unique, and will not be elaborated here too much.

[0058] In a specific implementation manner of this embodiment, the housing 120 also includes a first side plate 122 and a second side plate 123. The first side plate 122 and the second side plate 123 enclose the accommodating space 127. The plurality of second through holes 125 include a first sub-through hole 1251, a second sub-through hole 1252, and a third sub-through hole 1253. The first sub-through hole 1251 and the third sub-through hole 1253 are opened on the first side plate 122, the second sub-through hole 1252 is opened on the second side plate 123, and at least a part of the light guiding and adjusting portion 142 of the first light guiding member 144 is disposed in the first sub-through hole 1251, at least a part of the light guiding and adjusting portion 142 of the second light guiding member 145 is disposed in the second sub-through hole 1252, and at least a part of the light guiding and adjusting portion 142 of the third light guiding member 146 is disposed in the third sub-through hole 1253. Since the volume of the light guiding and adjusting portion 142 is smaller than that of the light guiding optical portion 141, this setting can make the light guiding and adjusting portions 142 of the second light guiding members be arranged in a staggered manner with the other two, thereby reducing the volume of the dimming device 100 and increasing its application range and usage scenarios.

[0059] In another embodiment, the first sub-through hole 1261, the second sub-through hole 1262, and the third sub-through hole 1263 are all formed in the first side plate 122 or the second side plate 123, and all of them are located on the same side of the accommodating space 128, which facilitates the installer to complete all installation operations on one side of the dimming device 100, improving the installation efficiency.

[0060] The dimming device 100 provided in this embodiment includes a plurality of light sources, a plurality of collimators, and a plurality of light guides. The plurality of collimators, the plurality of light guides, and the plurality of light sources are arranged in one-to-one correspondence. When it is necessary to adjust the exit angle of the emitted light, the positions of the respective collimators 130 and light guides 140 are adjusted by an external force acting on the adjusting device 2 to achieve the combined light of the light rays emitted by the plurality of light sources, so as to adapt to more environments. During this period, it is not necessary to remove the light guide 140 and the collimator 130. Only by applying an external force can the propagation angle of the light rays be adjusted, improving the assembly efficiency and application versatility of the dimming device 100.

[0061] Another embodiment of this case further provides an optical detection system 1. Please refer to Figure 8 , the optical detection system 1 may include the dimming device 100, the diaphragm 200, and the photoreceiver 300 described above. The diaphragm 200 is located in the optical path between the dimming device 100 and the photoreceiver 300.

[0062] The size of the diaphragm 200 may be the same as the designed light spot, where the designed light spot may be the light spot required for subsequent optical elements. The dimming device 100 emits light rays, and the diaphragm 200 is located in the exit optical path of the dimming device 100. The diaphragm 200 can limit the size of the light spot entering the photoreceiver 300. The photoreceiver 300 is used to receive the light rays passing through the diaphragm 200, and the photoreceiver 300 can detect the light power of the light rays emitted by the dimming device 100 along a specified direction to ensure that the emitted light of the dimming device 100 can meet the usage requirements of the subsequent optical path.

[0063] For the optical detection system 1 applying the above dimming device 100, the dimming device 100 emits light rays, the diaphragm 200 is arranged in the exit optical path of the dimming device 100, and the photoreceiver 300 is used to receive the light rays passing through the diaphragm 200, so that the photoreceiver 300 can detect the power of the light rays emitted by the dimming device 100 along a specified direction to ensure that the emitted light of the dimming device 100 can meet the usage requirements of the subsequent optical path.

[0064] In addition, terms such as "first" and "second" are only used for descriptive distinction and should not be construed as specific or special structures. The description of "some embodiments" 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 utility model. In the present utility model, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in the present utility model and the features of different embodiments or examples.

[0065] The above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model and should all be included in the protection scope of the present utility model.

Claims

1. A dimming device, characterized in that, The dimming device includes a light source, a housing, a collimator, and a light guide; The light source is used to emit light into the housing; The housing has an accommodation space. After the light enters the accommodation space, it is received and collimated by the collimator, and the light guide is used to guide the collimated light to exit from the accommodation space; The collimator and the light guide are movably engaged with the housing. Under the action of an external force, the collimator can rotate or translate relative to the housing so that the axis of the collimator is aligned with the optical axis of the light source; Under the action of an external force, the light guide can rotate or translate relative to the housing so that the light emitted from the light guide can be emitted in a predetermined direction.

2. The dimming device according to claim 1, wherein The collimator includes a collimating optical part and a collimating adjustment part. The collimating adjustment part penetrates through the housing, and the collimating optical part is located in the accommodation space.

3. The dimming device according to claim 2, characterized in that, The light guide includes a light guiding optical part and a light guiding adjustment part. The light guiding adjustment part penetrates through the housing, and the light guiding optical part is located in the accommodation space. The light guiding optical part is arranged above the collimating optical part.

4. The dimming device according to claim 3, characterized in that, A first through hole and a second through hole are formed in the housing. At least part of the collimating adjustment part is located in the first through hole; at least part of the light guiding adjustment part is located in the second through hole.

5. The dimming device according to claim 4, characterized in that, The second through hole includes a first part and a second part that are communicated with each other. The first part is a circular hole, and the second part is a square hole. The second part of the second through hole is arranged close to the accommodation space; the light guiding adjustment part has a first part and a second part. The first part of the light guiding adjustment part is matched with the first part of the second through hole, and the second part of the light guiding adjustment part is correspondingly arranged with the second part of the second through hole and has a clearance fit. A connecting structure adapted to be detachably connected to the adjusting device is provided on the first part of the light guiding adjustment part.

6. The dimming device according to claim 5, characterized in that The connecting structure provided on the first part of the light guiding adjustment part is configured as a magnetic attracting member, and the magnetic attracting member is used for magnetic attraction with the adjusting device.

7. The dimming device according to any one of claims 4-6, characterized in that, The housing includes a first side plate and a second side plate. The first side plate and the second side plate enclose the accommodation space. The first through hole is located on the first side plate. A third hole is formed in the second side plate, and the third hole is correspondingly arranged with the first through hole. One end of the light guiding adjustment part is embedded in the first through hole, and the other end of the light guiding adjustment part is embedded in the third hole.

8. The dimming device according to any one of claims 4-6, characterized in that, The number of the light sources is multiple, and the number of the collimators and the light guides is also multiple. The multiple light sources are used to emit light into the accommodation space and are incident on one of the collimators one by one. The number of the first through holes and the second through holes is multiple. The multiple first through holes are correspondingly arranged with the multiple collimators one by one, and the second through hole is correspondingly arranged with the light guide one by one.

9. The dimming device according to claim 8, characterized in that, A plurality of the light sources are respectively configured to emit a first light ray, a second light ray, and a third light ray. The plurality of collimators include a first collimator, a second collimator, and a third collimator. The plurality of light guides include a first light guide, a second light guide, and a third light guide. The first collimator is configured to receive and collimate the first light ray. The first light guide is configured to receive the first light ray emitted by the first collimator and reflect the first light ray to the second light guide. The second collimator is configured to receive and collimate the second light ray. The second light guide is configured to receive the second light ray emitted by the second collimator and emit the first light ray emitted by the first light guide and the second light ray after combining the lights. The third collimator is configured to receive and collimate the third light ray. The third light guide is configured to receive the third light ray emitted by the third collimator and emit the first light ray and the second light ray and the third light ray emitted by the second light guide after combining the lights. The wavelength ranges of the first light ray, the second light ray, and the third light ray are different.

10. The dimming device according to claim 9, characterized in that, The housing includes a first side plate and a second side plate. The first side plate and the second side plate enclose the accommodation space. The plurality of second through holes include a first sub-through hole, a second sub-through hole, and a third sub-through hole. The first sub-through hole and the third sub-through hole are formed in the first side plate. The second sub-through hole is formed in the second side plate. At least a part of the light guide adjustment portion of the first light guide is disposed in the first sub-through hole. At least a part of the light guide adjustment portion of the second light guide is disposed in the second sub-through hole. At least a part of the light guide adjustment portion of the third light guide is disposed in the third sub-through hole.

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