Light source device

Abstract

The light source device comprises an LED light emitting array, a collimation assembly, a light uniformizing assembly and a convergence assembly, the collimation assembly, the light uniformizing assembly and the convergence assembly are sequentially arranged on a light emitting path of light rays of the LED light emitting array, the collimation assembly is used for collecting and / or collimating the light rays, and the convergence assembly is used for converging the light rays to a preset face to form light spots. The light source device further comprises an adjusting assembly used for adjusting the relative position of the light uniformizing assembly and the LED light-emitting array, the light uniformizing assembly at least comprises a first light uniformizing piece and a second light uniformizing piece, the first light uniformizing piece is used for enabling illuminance of emergent light spots to be in Gaussian-like distribution, and the second light uniformizing piece is used for enabling illuminance of the emergent light spots to be in Gaussian-like distribution. The second light uniformizing part is used for enabling the illuminance of emitted light spots to be distributed like a flat top, and the first light uniformizing part and the second light uniformizing part can be selectively aligned with the LED light-emitting array under the action of the adjusting assembly. The light source device can present light spots with at least two illumination effects, and light emitting modes meet diversified requirements.

Description

Technical Field

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

[0002] The structure of the core light source module of the existing high-power stage lighting devices on the market usually includes an LED array light source, a collimating lens structure, a compound eye lens pair structure and a converging lens structure, wherein the LED array light source is composed of a number of LED light emitters, each of which emits a light beam with a Lambertian distribution. The collimating lens structure collimates the light beam emitted by each LED light emitter, and collimates the light originally with a Lambertian distribution into parallel light or nearly parallel light. The compound eye lens pair structure homogenizes the light beam after being collimated by the collimating lens structure, and the converging lens is used to converge the homogenized light to a predetermined focal plane to obtain a light spot with uniform illumination. This light source module can obtain a light beam with a long irradiation distance and high illumination, and can present a very strong sense of light beam. However, the light emission mode of this light source module is relatively single, and it is difficult to meet the market demand for diversified light beam effects. Utility Model Content

[0003] The utility model aims to overcome at least one defect of the above-mentioned prior art and provide a light source device, wherein the light source device can present light spots with at least two illumination effects, and the light emission modes meet diverse needs.

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

[0005] A light source device comprises an LED light array, a collimating component, a light homogenizing component and a converging component which are sequentially arranged on the light emitting path of the light of the LED light array, wherein the collimating component is used to gather and / or collimate the light, and the converging component is used to converge the light to a preset surface to form a light spot. The light source device also comprises an adjusting component for adjusting the relative position of the light homogenizing component and the LED light array, and the light homogenizing component comprises at least a first light homogenizing member and a second light homogenizing member, wherein the first light homogenizing member is used to make the illumination of the emitted light spot present a Gaussian-like distribution, and the second light homogenizing member is used to make the illumination of the emitted light spot present a flat-top-like distribution, and the first light homogenizing member and the second light homogenizing member can be selectively aligned with the LED light array under the action of the adjusting component.

[0006] In one embodiment, the first light homogenizer is a diffuser, the second light homogenizer is a fly-eye lens pair, the light homogenizer assembly further includes a light homogenizer bracket, and the diffuser and the fly-eye lens pair are both arranged on the light homogenizer bracket.

[0007] In one embodiment, the adjustment component includes a main adjustment component, which includes an adjustment member fixedly connected to the light-homogenizing bracket, a first guide mechanism for guiding the movement of the adjustment member, and a driving member for driving the adjustment member to move in a directional manner along the first guide mechanism.

[0008] In one embodiment, the first guiding mechanism includes a fixing seat and a first linear optical axis disposed on the fixing seat, and the first linear optical axis passes through the adjusting member.

[0009] In one embodiment, the driving member is a screw motor, and the adjusting member is threadedly connected to the screw of the screw motor.

[0010] In one embodiment, the main adjustment component is a motor slide group.

[0011] In one embodiment, the adjustment component further includes a second linear optical axis for guiding the movement of the light homogenizing bracket, and a connecting member slidably connected to the second linear optical axis, and the connecting member and the adjustment member are respectively located on two opposite sides of the light homogenizing bracket.

[0012] In one embodiment, the light source device further includes a housing, the first guide mechanism and the connecting member are fixedly disposed on the housing, the second linear optical axis is fixedly disposed on the light homogenizing bracket, and the adjusting member is fixedly connected to the light homogenizing bracket.

[0013] In one embodiment, the adjustment component also includes a micro switch for limiting the extreme moving position of the light homogenizing component, and the micro switch includes a first micro switch and a second micro switch. When the light homogenizing component touches the first micro switch, the first light homogenizing component is aligned with the LED light array. When the light homogenizing component touches the second micro switch, the second light homogenizing component is aligned with the LED light array.

[0014] In one embodiment, the direction in which the light homogenizing component moves is parallel to the array plane of the LED light emitting array.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the light homogenizing component of the technical solution includes a first light homogenizing component and a second light homogenizing component, the first light homogenizing component makes the illumination of the light spot formed on the preset plane after the convergence component acts in a Gaussian-like distribution, the second light homogenizing component makes the illumination of the light spot on the preset plane in a flat-top-like distribution, the adjustment component adjusts the light homogenizing component so that the first light homogenizing component or the second light homogenizing component can be selectively aligned with the LED light array, then the light of the LED light array can be homogenized into at least two light rays with different effects through the light homogenizing component, so that at least two light spots with different illumination effects can be emitted through the convergence lens component, enriching the function 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 a structural diagram of the light homogenization component.

[0018] Figure 3 for Figure 2 Exploded diagram.

[0019] Figure 4 This is the assembly diagram of the adjustment component and the homogenization component.

[0020] Figure 5 for Figure 4 Another perspective structural diagram.

[0021] Figure 6 for Figure 4 Exploded diagram.

[0022] Figure 7 This is the structural diagram of the motor slide group.

[0023] Explanation of the reference numerals: 1. LED light-emitting array; 2. collimating assembly; 21. first collimating lens; 22. second collimating lens; 23. collimating lens bracket; 3. homogenizing assembly; 31. diffuser; 32. compound-eye lens pair; 33. homogenizing bracket; 4. converging assembly; 41. converging lens; 42. lens pressure ring; 51. motor slide group; 511. adjusting member; 512. first linear optical axis; 513. lead screw motor; 514. fixing seat; 5131. lead screw; 521. connecting member; 522. second linear optical axis; 523. bearing; 53. micro switch; 531. first micro switch; 532. second micro switch; 6. housing; 7. mounting seat. DETAILED DESCRIPTION

[0024] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size 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.

[0025] Example 1

[0026] like Figure 1As shown, the present embodiment discloses a light source device, comprising an LED light-emitting array 1, a collimating component 2, a light homogenizing component 3 and a converging component 4 which are sequentially arranged on the light emitting path of the light of the LED light-emitting array 1, the collimating component 2 being used to gather and / or collimate the light, the converging component 4 being used to converge the light to a preset surface to form a light spot, the light source device also comprising an adjusting component for adjusting the relative position of the light homogenizing component 3 and the LED light-emitting array 1, the light homogenizing component 3 comprising at least a first light homogenizing component and a second light homogenizing component, the first light homogenizing component being used to make the illumination of the emitted light spot present a Gaussian-like distribution, the second light homogenizing component being used to make the illumination of the emitted light spot present a flat-top-like distribution, and the first light homogenizing component and the second light homogenizing component can be selectively aligned with the LED light-emitting array 1 under the action of the adjusting component.

[0027] In this embodiment, the LED light-emitting array 1 is used to emit light, and the light has a Lambertian distribution. The collimation component 2 is used to gather and / or collimate the light with the Lambertian distribution to obtain nearly parallel light. The light homogenization component 3 homogenizes the nearly parallel light to increase the mixing uniformity of the light. The converging component 4 is used to converge the homogenized light to a preset surface to form a light spot. In this embodiment, the light homogenization component 3 includes a first light homogenization component and a second light homogenization component. The first light homogenization component is used to make the illumination of the emitted light spot have a Gaussian distribution, and the second light homogenization component is used to make the illumination of the emitted light spot have a flat-top distribution. An adjustment component is provided so that the first light homogenization component and the second light homogenization component can be selectively aligned with the LED light-emitting array 1. The light of the LED light-emitting array 1 can be homogenized into at least two light rays with different effects through different light homogenization components, so that at least two light spots with different illumination effects can be emitted through the converging lens component, thereby enriching the function of the light source device.

[0028] Furthermore, if Figure 2 , Figure 3 As shown, in this embodiment, the first light homogenizer is a diffuser 31, the second light homogenizer is a fly-eye lens pair 32, and the light homogenizer assembly 3 further includes a light homogenizer bracket 33, and the diffuser 31 and the fly-eye lens pair 32 are both arranged on the light homogenizer bracket 33. More specifically, in this embodiment, the fly-eye lens pair 32 is a double fly-eye lens, that is, it includes two fly-eye lens sheets. In other embodiments, the fly-eye lens pair 32 can also be a single-piece structure with the same structure on both sides.

[0029] Furthermore, if Figures 4 to 7As shown, the adjustment component described in this embodiment includes a main adjustment component, and the main adjustment component includes an adjustment member 511 fixedly connected to the light homogenizing bracket 33, a first guide mechanism for guiding the movement of the adjustment member 511, and a driving member for driving the adjustment member 511 to move in a directional manner along the first guide mechanism. Specifically, in this embodiment, the first guide mechanism includes a fixed seat 514 and a first linear optical axis 512 arranged on the fixed seat 514, and the first linear optical axis 512 passes through the adjustment member 511. The driving member is a screw motor 513, and the adjustment member 511 is threadedly connected to the screw 5131 of the screw motor 513. More specifically, as Figure 7 As shown, the main adjustment component is a motor slide group, which can be purchased in its entirety on the market.

[0030] Furthermore, the adjustment component further includes a second linear optical axis 522 for guiding the movement of the light homogenizing bracket 33, and a connecting member 521 slidably connected to the second linear optical axis 522, and the connecting member 521 and the adjusting member 511 are respectively located at two opposite sides of the light homogenizing bracket 33. More specifically, the connecting member 521 is a metal block, a through hole is provided inside the metal block, a bearing 523 is provided inside the through hole, and the second linear optical axis 522 passes through the bearing 523. By providing the bearing 523 between the second linear optical axis 522 and the connecting member 521, the relative movement between the connecting member 521 and the second linear optical axis 522 can be smoother.

[0031] Furthermore, the light source device further comprises a housing 6, the first guide mechanism and the connecting member 521 are fixedly arranged on the housing 6, the second linear optical axis 522 is fixedly arranged on the light homogenizing bracket 33, and the adjusting member 511 is fixedly connected to the light homogenizing bracket 33. Compared with the method of fixing the second linear optical axis 522 on the housing 6 and fixing the adjusting member 511 to the light homogenizing bracket 33, the method of fixing the second linear optical axis 522 on the light homogenizing bracket 33 and fixing the adjusting member 511 on the housing 6 can shorten the length of the second linear optical axis 522, and the structure is more compact.

[0032] Furthermore, the adjustment component also includes a micro switch 8 for limiting the extreme movement position of the light homogenizing component 3, and the micro switch 8 includes a first micro switch 81 and a second micro switch 82. When the light homogenizing component touches the first micro switch, the first light homogenizing member is aligned with the LED light array 1, and when the light homogenizing component touches the second micro switch, the second light homogenizing member is aligned with the LED light array. More specifically, in this embodiment, the first micro switch 81 and the second micro switch 82 are respectively arranged on both sides of the end of the second linear optical axis. More specifically, its working principle is as follows: a driving board is arranged outside, and the first microswitch 81, the second microswitch 82 and the motor slide group 51 are all connected to the driving board. When the light homogenizing bracket 33 touches the first microswitch 81 during movement, the first microswitch 81 is changed from a high level mode to a low level mode, and a signal is immediately sent to the driving board, and the driving board sends a signal to the screw motor 513 of the motor slide group 51, and the screw motor 513 stops working immediately, at which time the diffuser 31 is aligned with the LED light array 1; when the light homogenizing bracket 33 touches the second microswitch 82 during movement, the second microswitch 82 is changed from a high level mode to a low level mode, and a signal is immediately sent to the driving board, and the driving board sends a signal to the screw motor 513, and the screw motor 513 stops working immediately, at which time the compound eye lens pair 32 is aligned with the LED light array 1.

[0033] Furthermore, in this embodiment, the moving direction of the light homogenizing component 4 is parallel to the array surface of the LED light emitting array 1, that is, the light homogenizing component moves in a cutting-in and cutting-out manner relative to the light emitting direction of the LED light emitting array.

[0034] Furthermore, the collimating assembly 2 in this embodiment includes a collimating lens holder 23 and a first collimating lens 21 and a second collimating lens 22 arranged on the collimating lens holder 23, wherein the first collimating lens 21 is composed of a plurality of first small lens units, and the collimating lens holder 23 is provided with a plurality of through holes, and the first small lens units are fixed in the through holes by dispensing. The second collimating lens 22 is an integrally formed array lens sheet.

[0035] Furthermore, the converging assembly 4 of this embodiment includes a converging lens 41 and a lens pressing ring 42 for pressing the converging lens 41 onto the housing 6 .

[0036] Furthermore, the LED light array is arranged on the light source substrate. The light source device of this embodiment further includes a mounting seat 7, on which the light source substrate and the housing 6 are fixedly arranged, specifically by screws, to achieve a fixed connection between the housing 6 and the light source substrate.

[0037] In other embodiments, the light homogenizing component may further include a third light homogenizing member, or part of the structure of the light homogenizing component 4 may be hollowed out to achieve more function switching, and the specific requirements may be set according to actual needs.

[0038] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A light source device, comprising an LED light array, a collimating component, a light homogenizing component and a converging component sequentially arranged on the light emitting path of the light of the LED light array, wherein the collimating component is used to gather and / or collimate the light, and the converging component is used to converge the light to a preset surface to form a light spot, characterized in that: The light source device also includes an adjustment component for adjusting the relative position of the light homogenizing component and the LED light array, and the light homogenizing component includes at least a first light homogenizing member and a second light homogenizing member, the first light homogenizing member is used to make the illumination of the emitted light spot present a Gaussian-like distribution, and the second light homogenizing member is used to make the illumination of the emitted light spot present a flat-top-like distribution, and the first light homogenizing member and the second light homogenizing member can be selectively aligned with the LED light array under the action of the adjustment component.

2. The light source device according to claim 1, characterized in that: The first light homogenizing element is a diffuser, the second light homogenizing element is a fly-eye lens pair, the light homogenizing assembly further comprises a light homogenizing bracket, and the diffuser and the fly-eye lens pair are both arranged on the light homogenizing bracket.

3. The light source device according to claim 2, characterized in that: The adjustment component includes a main adjustment component, which includes an adjustment member fixedly connected to the light homogenizing bracket, a first guide mechanism for guiding the movement of the adjustment member, and a driving member for driving the adjustment member to move in a directional manner along the first guide mechanism.

4. The light source device according to claim 3, characterized in that: The first guiding mechanism includes a fixing seat and a first linear optical axis arranged on the fixing seat, and the first linear optical axis passes through the adjusting member.

5. The light source device according to claim 3, characterized in that: The driving member is a screw motor, and the adjusting member is threadedly connected to the screw of the screw motor.

6. The light source device according to any one of claims 3 to 5, characterized in that: The main adjustment component is a motor slide group.

7. The light source device according to claim 3, characterized in that: The adjustment component further includes a second linear optical axis for guiding the movement of the light homogenizing bracket, and a connecting member slidably connected to the second linear optical axis, wherein the connecting member and the adjustment member are respectively located at two opposite sides of the light homogenizing bracket.

8. The light source device according to claim 7, characterized in that: The light source device further comprises a housing, the first guide mechanism and the connecting member are fixedly arranged on the housing, the second linear optical axis is fixedly arranged on the light homogenizing bracket, and the adjusting member is fixedly connected to the light homogenizing bracket.

9. The light source device according to claim 3, characterized in that: The adjustment component also includes a micro switch for limiting the extreme movement position of the light homogenizing component, and the micro switch includes a first micro switch and a second micro switch. When the light homogenizing component touches the first micro switch, the first light homogenizing component is aligned with the LED light array. When the light homogenizing component touches the second micro switch, the second light homogenizing component is aligned with the LED light array.

10. The light source device according to any one of claims 1 to 5 and 7 to 9, characterized in that: The moving direction of the light homogenizing component is parallel to the array surface of the LED light emitting array.

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