Thick-wall optical part, thick-wall optical assembly and lamp
By setting a combined structure of multiple optical surfaces and total reflective parts in the thick-walled optical member, the problem of requiring multiple LED lamp beads in the prior art to meet a large lighting range is solved, and the effect of a single LED lamp bead can cover a large range is achieved, reducing the cost and thermal management difficulty.
Patent Information
- Application Number
- CN202421765567.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-24
AI Technical Summary
In existing headlights, thick-walled optics and collimator systems require multiple LED beads to meet a larger lighting range, which not only increases costs but also increases thermal management difficulty.
By providing the side wall of the collimator in the thick-walled optical member with a plurality of optical surfaces and providing a total reflective portion in the length direction of the thick-walled optical member, a combined structure of these optical surfaces and total reflective portions can enable a single LED lamp bead to achieve a lighting range of a larger width.
A fewer LED lamp beads can meet a larger width lighting range, thereby reducing the cost and the difficulty of thermal management of thick-wall optical components and lamps.
Smart Images
Figure CN222977952U_ABST
Abstract
Description
Technical Field
[0001] This application relates to thick-walled optical components, thick-walled optical assemblies, and lamps. Background Art
[0002] In vehicle headlights, optical light distribution often uses a collimator and thick-walled components to achieve, which can also be called a collimator thick-walled system. For example, Figure 1 in the shown comparative solution, due to the relatively small width range of lighting, Figure 1 in the wall thickness optical component 1000a solution of the collimator thick-walled system shown, to meet the width requirement of the lighting range, the light incident surface 11a of each thick-walled optical component 100a corresponds to one LED, that is, a structure where five LED lamp beads correspond to five light incident surfaces 11a.
[0003] Figure 1 The shown solution uses a relatively large number of LED lamp beads, which is not conducive to cost reduction and thermal management of the lamp.
[0004] Therefore, there is a need in the art for a thick-walled optical component, a thick-walled optical assembly, and a lamp to solve at least one of the above problems. Summary of the Utility Model
[0005] The technical problem to be solved by this application is to provide a thick-walled optical component, a thick-walled optical assembly, and a lamp to achieve a lighting range with a larger width using fewer LED lamp beads, so as to reduce costs and the difficulty of thermal management of the thick-walled optical assembly and the lamp.
[0006] A thick-walled optical component according to the first aspect of the present application includes a thick-walled component having a light incident surface on one side in the thickness direction and a light exiting surface on one side in the length direction; a collimator that partially hollows out the thickness of the thick-walled component from the other side of the thick-walled component in the thickness direction toward the light incident surface; the side wall of the collimator has a first optical surface, a second optical surface, a third optical surface, and a fourth optical surface; the other side of the thick-walled component in the length direction has a first total reflection portion corresponding to the first optical surface, one side in the width direction has a second total reflection portion corresponding to the second optical surface, the other side in the width direction has a third total reflection portion corresponding to the third optical surface, and the fourth optical surface corresponds to the light exiting surface; wherein, the optical path provided by the thick-walled optical component includes: after the light incident surface receives the light emitted by the light source component and enters the thick-walled optical component, part of the light diverges after passing through the first optical surface of the collimator, and the diverging light propagates along the length direction in the thick-walled component after passing through the first total reflection portion and finally exits through the light exiting surface, part of the light passes through the second optical surface of the collimator, and the light propagates along the length direction in the thick-walled component after passing through the second total reflection portion and finally exits through the light exiting surface, part of the light passes through the third optical surface of the collimator, and the light propagates along the length direction in the thick-walled component after passing through the third total reflection portion and finally exits through the light exiting surface, part of the light passes through the fourth optical surface of the collimator, and the light propagates along the length direction in the thick-walled component and finally exits through the light exiting surface.
[0007] In one or more embodiments of the thick-walled optical component, the second optical surface, the third optical surface, and the fourth optical surface are convex surfaces protruding from the thick-walled component, and the first optical surface is a concave surface recessed from the thick-walled component.
[0008] In one or more embodiments of the thick-walled optical component, at least one of the surfaces of the first optical surface, the second optical surface, the third optical surface, the fourth optical surface, the first total reflection portion, the second total reflection portion, the third total reflection portion, and the light exiting surface has an optical pattern.
[0009] In one or more embodiments of the thick-walled optical component, the first total reflection portion includes a first total reflection surface and a second total reflection surface connected in the thickness direction, and the included angle a formed by the connection of the first total reflection surface and the second total reflection surface is 0° < a < 180°. Part of the light diverges after passing through the first optical surface of the collimator, and the diverging light forms a light propagating along the thickness direction after passing through the first total reflection surface. Then, the light propagating along the thickness direction propagates along the length direction in the thick-walled component after passing through the second total reflection surface and finally exits through the light exiting surface.
[0010] In one or more embodiments of the thick-walled optical component, the contour line of the first total reflection portion includes a continuous arc from one side to the other side in the width direction.
[0011] In one or more embodiments of the thick-walled optical component, the second total reflection portion includes a third total reflection surface, which extends from one side of the first total reflection portion in the width direction towards the direction of width expansion. The third total reflection portion includes a fourth total reflection surface, which extends from the other side of the first total reflection portion in the width direction towards the direction of width expansion.
[0012] A thick-walled optical component according to the second aspect of the present application includes the thick-walled optical component as described in the first aspect and a light source component, and the light emitted by the light source component is received by the light incident surface.
[0013] In one or more embodiments of the thick-walled optical component, the light source component is an LED lamp bead, and each light source component corresponds to each thick-walled optical component.
[0014] In one or more embodiments of the thick-walled optical component, a plurality of the thick-walled optical components are arranged in the width direction, and each thick-walled optical component is correspondingly provided with an independent light source component.
[0015] A lamp according to the third aspect of the present application includes the thick-walled optical component as described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following detailed description of the specific embodiments of the present application is provided in conjunction with the accompanying drawings, wherein:
[0017] Figure 1 is a schematic structural diagram of a thick-walled optical component of a comparative solution;
[0018] Figures 2A to 2D is a schematic structural diagram of a thick-walled optical component of an embodiment of the present application.
[0019] Figures 3A to 3C is a schematic structural diagram of a thick-walled optical component of an embodiment of the present application.
[0020] Figure 4 is a schematic structural diagram of the combination of a light source component and a thick-walled optical component of an embodiment of the present application.
[0021] Figure 5 is according to Figure 4 the optical path schematic diagram of the structure.
[0022] REFERENCE SIGNS:
[0023] 1000 - thick-walled optical component
[0024] 100 - thick-walled optical component
[0025] 1 - thick-walled part
[0026] 11 - Light incident surface
[0027] 12 - Light exit surface
[0028] 13 - First total reflection part
[0029] 131 - First total reflection surface
[0030] 132 - Second total reflection surface
[0031] 14 - Second total reflection part
[0032] 141 - Third total reflection surface
[0033] 15 - Third total reflection part
[0034] 151 - Fourth total reflection surface
[0035] 2 - Collimator
[0036] 211 - First optical surface
[0037] 212 - Second optical surface
[0038] 213 - Third optical surface
[0039] 214 - Fourth optical surface
[0040] 200 - Light source component. Detailed implementation manners
[0041] To make the above - mentioned objects, features, and advantages of the present application more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings.
[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0043] As shown in the present application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.
[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, top, bottom, left, right", "lateral, vertical, upright, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description. Without contrary statements, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0045] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application. In addition, although the terms used in the present application are selected from well-known and commonly used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant according to his or her judgment. Their detailed meanings are described in the relevant parts of the description herein. In addition, it is required to understand the present application not only through the actual terms used, but also through the meaning implied by each term.
[0046] The lamps introduced in the following embodiments take vehicle lamps as an example, but are not limited thereto, and can also be used for lamps in other scenarios.
[0047] Reference Figures 2A to 2D 、 Figures 3A to 3C and Figure 4 、 Figure 5 As shown in, the lamp can include a thick-wall optical component 1000 and a light source component 200. The light source component 200 can emit light beams, and the light emitted by each light source component 200 is received by the light incident surface 11 of the corresponding thick-wall optical component 100. The light source component 200 can be, for example, an LED lamp bead, integrated on a printed circuit board, that is, a PCB board. The number of light source components 200 can be multiple, that is, all the light source components 200 are integrally arranged on the same printed circuit board. A single light source component 200 can be a single LED lamp bead, corresponding to the light incident surface 11 of a single thick-wall optical component 100.
[0048] As Figure 2A and Figure 2B shown, the thick-wall optical component 1000 adopts the structure of the thick-wall optical component 100 to be introduced in detail in the following embodiments, so as to achieve a lighting range with a larger width with fewer LED lamp beads, thereby reducing costs and the difficulty of thermal management of the thick-wall optical component and the lamp. For example Figure 2A and Figure 2B shown, compared with Figure 1To meet the width requirement of the lighting range, for the same width, only five light-incident surfaces 11a need to be set, and five LED lamp beads are correspondingly configured. Figure 2A 、 Figure 2B In the embodiments shown, in the same thick-walled member, only two thick-walled optical members 100 need to be set, and only two LED lamp beads (light source members 200) need to be correspondingly set. Compared with the above, the number of LED lamp beads is reduced by more than half, reducing the cost and the difficulty of thermal management.
[0049] Continuing to refer to Figures 2A to 2D As shown, in some embodiments, a plurality of thick-walled optical members 100 are arranged in the width direction, and each thick-walled optical member 100 is correspondingly provided with an independent light source member 200, and the formed combined structure is as Figure 4 and Figure 5 As shown, in some embodiments, the light source member 200 is an LED lamp bead, and each light source member 200 corresponds to each thick-walled optical member 100. Such a structure is simple and easy to layout and control the corresponding lighting effects.
[0050] Continuing to refer to Figures 2A to 2D 、 Figures 3A to 3C and Figure 4 、 Figure 5 As shown, the thick-walled optical member 100 and the corresponding optical path structure will be introduced in detail below.
[0051] The thick-walled optical member 100 includes a thick-walled member 1 and a collimator 2 provided on the thick-walled member 1.
[0052] As Figure 4 and Figure 5 shown, the thick-walled member 1 has a light-incident surface 11 on one side in the thickness direction and a light-emitting surface 12 on one side in the length direction.
[0053] It can be understood that the meaning of the thick-walled member 1 here is similar to the general meaning in the art, that is, the thick-walled member is, as the name implies, a light-transmitting element with a very thick wall, and the thick-walled member is generally a wall-like structure. The material of the thick-walled member 1 can be common light-guiding materials such as transparent PC and PMMA, but it is not limited thereto.
[0054] The collimator 2 (collimator) partially hollowes out the thickness of the thick-walled member from the other side of the thick-walled member 1 in the thickness direction towards the light-incident surface 11; the side wall of the collimator 2 has a first optical surface 211, a second optical surface 212, a third optical surface 213, and a fourth optical surface 214.
[0055] The thick-walled member 1 has a first total reflection portion 13 corresponding to the first optical surface 211 on the other side in the length direction, a second total reflection portion 14 corresponding to the second optical surface 212 on one side in the width direction, a third total reflection portion 15 corresponding to the third optical surface 213 on the other side in the width direction, and the fourth optical surface 214 corresponds to the light-emitting surface 12.
[0056] Among them, the optical path provided by the thick-walled optical member 100 includes:
[0057] After the light incident surface 11 receives the light emitted by the light source member 200 and enters the thick-walled optical member 100, part of the light diverges after passing through the first optical surface 211 of the collimator 1, and the diverging light propagates along the length direction in the thick-walled member 1 after passing through the first total reflection portion 13 and finally exits through the light-emitting surface 12. After part of the light passes through the second optical surface 212 of the collimator 1, the light propagates along the length direction in the thick-walled member 1 after passing through the second total reflection portion 14 and finally exits through the light-emitting surface 12. After part of the light passes through the third optical surface 213 of the collimator 1, the light propagates along the length direction in the thick-walled member 1 after passing through the third total reflection portion 15 and finally exits through the light-emitting surface 12. After part of the light passes through the fourth optical surface 214 of the collimator 1, the light propagates along the length direction in the thick-walled member 1 and finally exits through the light-emitting surface 12.
[0058] It can be understood that the general meaning of the collimator 2 in the art is to collect the incident light and form collimated light, but it is not limited to directly collecting and collimating. For example, in the embodiments of this case, as Figure 5 shown, part of the light diverges after passing through the first optical surface 211 of the collimator 1 and forms collimated light after passing through the first total reflection portion 13, rather than directly forming collimated light like the light passing through the second optical surface 212, the third optical surface 213, and the fourth optical surface 214.
[0059] The beneficial effect of adopting the above embodiments is that by providing the side wall of the collimator 2 with the first optical surface 211, the second optical surface 212, the third optical surface 213, and the fourth optical surface 214 in the collimator, especially by setting the first optical surface to a structure of divergent rather than parallel light, the thick-walled optical member 100 can achieve a larger width of the lighting range corresponding to a single LED lamp bead, so as to achieve a larger width of the lighting range with fewer LED lamp beads, thereby reducing the cost and the difficulty of thermal management of the thick-walled optical component and the lamp.
[0060] Continue to refer to Figure 2A 、 Figure 2B and Figures 3A to 3C and Figure 4 、 Figure 5As shown, the specific structures of the first optical surface 211, the second optical surface 212, the third optical surface 213, and the fourth optical surface 214 may be that the second optical surface 212, the third optical surface 213, and the fourth optical surface 214 are convex surfaces protruding outward from the thick-walled member, and the first optical surface 211 is a concave surface recessed inward from the thick-walled member. Such a structure is simple and easy to implement.
[0061] In some embodiments, at least one of the surfaces of the first optical surface 211, the second optical surface 212, the third optical surface 213, the fourth optical surface 214, the first total reflection portion 13, the second total reflection portion 14, the third total reflection portion 15, and the light output surface 12 has an optical pattern, which can play a role in scattering and mixing light to achieve a beneficial effect of better uniformity.
[0062] Continue to refer to Figure 2A 、 Figure 2B and Figures 3A to 3C and Figure 4 、 Figure 5 As shown, in some embodiments, the specific structure of the first reflection portion 13 may include a first total reflection surface 131 and a second total reflection surface 132 connected in the thickness direction. The included angle a formed by the connection of the first total reflection surface 131 and the second total reflection surface 132 is 0° < a < 180°. Part of the light rays diverge after passing through the first optical surface 211 of the collimator 1, and the diverging light rays form light rays propagating in the thickness direction after passing through the first total reflection surface 131. Then, the light rays propagating in the thickness direction pass through the second total reflection surface 132 and propagate in the length direction within the thick-walled member 1 and finally exit through the light output surface 12. In this way, an optical path from a diverging light beam to parallel light output is realized through a simple structure. In some embodiments, the contour line of the first total reflection portion 13 includes a continuous arc from one side to the other side in the width direction. Adopting a structure with a continuous arc is easy to process.
[0063] Continue to refer to Figure 4 and Figure 5 As shown, in some embodiments, the structures of the second total reflection portion 14 and the third total reflection portion 15 may be that the second total reflection portion 14 includes a third total reflection surface 141, and the third total reflection surface 141 extends from one side of the first total reflection portion 13 in the width direction towards the direction of width expansion. The third total reflection portion 15 includes a fourth total reflection surface 151, and the fourth total reflection surface 151 extends from the other side of the first total reflection portion 13 in the width direction towards the direction of width expansion. Adopting a flared structure extending in the width expansion direction further optimizes the effect that fewer LED lamp beads can meet a larger lighting range in width.
[0064] In summary, the beneficial effects of the thick-walled optical component, thick-walled optical assembly, and lamp of the present application include, but are not limited to, achieving a large lighting range with a smaller number of LED lamp beads, thereby reducing costs and the difficulty of thermal management of the thick-walled optical assembly and the lamp. The principle lies in that by providing the side wall of the collimator 2 with a first optical surface 211, a second optical surface 212, a third optical surface 213, and a fourth optical surface 214 in the collimator, especially by setting the first optical surface to a structure that emits divergent rather than parallel light, the thick-walled optical component 100 can achieve a large lighting range corresponding to a single LED lamp bead, thus achieving a large lighting range with a smaller number of LED lamp beads, thereby reducing costs and the difficulty of thermal management of the thick-walled optical assembly and the lamp.
[0065] Although the present application has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions can be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the spirit of the present application, they will fall within the scope of the claims of the present application.
Claims
1. A thick-walled optical component (100), characterized in that: include: A thick-walled member (1) having a light incident surface (11) on one side in the thickness direction and a light emitting surface (12) on one side in the length direction; A collimator (2), wherein the thickness of the thick-walled member (1) is partially hollowed out from the other side of the thick-walled member (1) in the thickness direction in the direction of the light incident surface (11); the side wall of the collimator (2) comprises a first optical surface (211), a second optical surface (212), a third optical surface (213), and a fourth optical surface (214); The thick-walled member (1) has a first total reflection portion (13) corresponding to the first optical surface (211) on the other side in the length direction, a second total reflection portion (14) corresponding to the second optical surface (212) on one side in the width direction, and a third total reflection portion (15) corresponding to the third optical surface (213) on the other side in the width direction; the fourth optical surface (214) corresponds to the light emitting surface (12); Wherein, the optical path provided by the thick-walled optical component (100) comprises: After the light incident surface (11) receives the light emitted by the light source component (200) and enters the thick-walled optical component (100), part of the light passes through the first optical surface (211) of the collimator (2) and then diverges. The diverged light passes through the first total reflection portion (13) and then propagates along the length direction in the thick-walled component (1) and finally exits through the light exit surface (12). After part of the light passes through the second optical surface (212) of the collimator (2), the light passes through the second total reflection portion (14) and then exits through the thick-walled optical component (100). The light propagates along the length direction in the thick-walled component (1) and finally exits through the light exit surface (12); after part of the light passes through the third optical surface (213) of the collimator (2), the light passes through the third total reflection portion (15), propagates along the length direction in the thick-walled component (1) and finally exits through the light exit surface (12); after part of the light passes through the fourth optical surface (214) of the collimator (2), the light propagates along the length direction in the thick-walled component (1) and finally exits through the light exit surface (12).
2. The thick-walled optical component (100) according to claim 1, characterized in that: The second optical surface (212), the third optical surface (213), and the fourth optical surface (214) are convex surfaces protruding outward from the thick-walled component, and the first optical surface (211) is a concave surface concave inward from the thick-walled component.
3. The thick-walled optical component (100) according to claim 1, characterized in that: The surface of at least one of the first optical surface (211), the second optical surface (212), the third optical surface (213), the fourth optical surface (214), the first total reflection portion (13), the second total reflection portion (14), the third total reflection portion (15), and the light emitting surface (12) has an optical pattern.
4. The thick-walled optical component (100) according to claim 1, characterized in that: The first total reflection portion (13) comprises a first total reflection surface (131) and a second total reflection surface (132) connected in the thickness direction, the angle a formed by the connection between the first total reflection surface (131) and the second total reflection surface (132) being 0°<a<180°, part of the light is diverged after passing through the first optical surface (211) of the collimator (2), the diverged light passes through the first total reflection surface (131) to form light propagating in the thickness direction, and then the light propagating in the thickness direction passes through the second total reflection surface (132), propagates in the thick-walled component (1) along the length direction, and finally exits through the light emitting surface (12).
5. The thick-walled optical component (100) according to claim 1, characterized in that: The contour line of the first total reflection portion (13) includes an arc shape that is continuous from one side to the other side in the width direction.
6. The thick-walled optical component (100) according to claim 1, characterized in that: The second total reflection portion (14) comprises a third total reflection surface (141), and the third total reflection surface (141) extends from one side of the first total reflection portion (13) in the width direction in a direction of expanding width. The third total reflection portion (15) comprises a fourth total reflection surface (151), and the fourth total reflection surface (151) extends from the other side of the first total reflection portion (13) in the width direction in a direction of expanding width.
7. A thick-walled optical component (1000), characterized in that: It comprises a thick-walled optical component (100) as claimed in any one of claims 1 to 6, and a light source component (200), wherein the light emitted by the light source component (200) is received by the light incident surface (11).
8. The thick-walled optical component (1000) according to claim 7, characterized in that: The light source components (200) are LED lamp beads, and each of the light source components (200) corresponds to each thick-walled optical component (100).
9. The thick-walled optical component (1000) according to claim 7, characterized in that: A plurality of the thick-walled optical components (100) are arranged in a width direction, and each thick-walled optical component (100) is correspondingly provided with an independent light source component (200).
10. A lamp, characterized in that: Comprising the thick-walled optical component (1000) as described in any one of claims 7 to 9.