Micro-imaging array optical system and vehicle lamp with same

Abstract

The utility model discloses a micro-imaging array optical system and a car lamp with the same. The micro-imaging array optical system comprises a light source, a plurality of light gathering assemblies and a plurality of imaging units. The multiple condensation assemblies are located in the light emitting direction of the light source, each condensation assembly is a curved surface with a focus, and the condensation assemblies are used for converging light rays, emitted by the light source, of a partial area to one point; the imaging unit comprises a primary optical unit and a refraction unit, the focus of the primary optical unit coincides with the convergent point of the corresponding light gathering assembly, the primary optical unit is used for forming light distribution near the focus of the refraction unit, and the refraction unit is used for imaging the light distribution near the focus of the refraction unit. The automobile lamp has the advantages of meeting the automobile lamp projection performance and being good in road surface projection uniformity.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle lighting technology, specifically relating to a micro-imaging array optical system and a vehicle light having the same. Background Technology

[0002] In the field of automotive lighting technology, common lens modules use lenses for projection imaging; however, this approach usually requires complex and time-consuming optimization to achieve uniform road illumination. To improve the uniformity of road illumination, a micro-imaging array optical system and an automotive light incorporating it are proposed. This system uses multiple tiny units for joint projection imaging, because the smaller the size, the more uniform the light distribution. Thus, the uniform road projection effect is ultimately achieved through the superposition of multiple uniform light distributions. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] Therefore, this utility model proposes a micro-imaging array optical system and a vehicle lamp having the same, which has the advantage of improving the uniformity of road surface projection.

[0005] The micro-imaging array optical system according to an embodiment of the present invention includes: a light source, multiple light-concentrating components, and multiple imaging units; the multiple light-concentrating components are located in the light-emitting direction of the light source, each light-concentrating component is a curved surface with a focal point, and the light-concentrating component is used to converge light from a portion of the light emitted by the light source to a single point; the imaging unit includes a primary optical unit and a refractive unit, the focal point of the primary optical unit coincides with the convergence point of the corresponding light-concentrating component, the primary optical unit is used to form a light distribution near the focal point of the refractive unit, and the refractive unit is used to image the light distribution near its focal point.

[0006] According to one embodiment of the present invention, a collimation unit is provided between the focusing component and the light source. The focusing component is a refractive component or a reflective component. The collimation unit is used to collimate the light emitted by the light source and direct the collimated light towards multiple focusing components.

[0007] According to one embodiment of the present invention, when the light-concentrating component is a refractive component, the plurality of light-concentrating components and the collimating unit are integrally formed.

[0008] According to one embodiment of the present invention, the primary optical unit is a reflective surface, the refractive unit is a refractive surface, and the primary optical unit is located in the light-emitting direction of the light-concentrating component to receive the light emitted by its corresponding light-concentrating component and reflect it to the refractive unit.

[0009] According to one embodiment of the present invention, the imaging unit further includes a thick-walled member, wherein the reflective surface and the refracting surface are respectively formed at both ends of the thick-walled member.

[0010] According to one embodiment of the present invention, both the primary optical unit and the refractive unit are refractive surfaces. The primary optical unit is used to form a light distribution at the focal point of the refractive unit, and the refractive unit is used to project and image the light distribution at its focal point.

[0011] According to one embodiment of the present invention, the light-concentrating component is a reflective component, the light-concentrating component is located in the light-emitting direction of the light source, and the light-concentrating component is used to reflect the received light and converge the light to a point.

[0012] According to one embodiment of the present invention, a light-blocking component is also included, which is located between the light-concentrating component and the imaging unit or between the primary optical unit and the refractive unit to form the desired light and dark cutoff line.

[0013] According to one embodiment of the present invention, the light source is an LED lamp bead.

[0014] A vehicle lamp with a micro-imaging array optical system, employing any one of the micro-imaging array optical systems described above, includes a housing, wherein the light source, multiple light-concentrating components, and multiple imaging units are all disposed within the housing.

[0015] The beneficial effects of this utility model are that it uses multiple light-concentrating components combined with multiple imaging units to adjust the projection angle according to the needs of the projection area to meet the road illumination performance. At the same time, it superimposes multiple projection areas to form a uniform total projection area, thus achieving a uniform road surface projection effect.

[0016] By employing multiple focusing components, one light source can correspond to multiple imaging units, reducing the requirement for the focal length of the imaging units and thus shrinking the overall size of the micro-imaging array optical system.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments with accompanying drawings, in which:

[0020] Figure 1This is a three-dimensional structural diagram of the imaging unit of this utility model, which includes a reflective surface and a refracting surface;

[0021] Figure 2 This is a schematic diagram of the light path in a vertical plane when the imaging unit of this utility model includes a reflective surface and a refracting surface;

[0022] Figure 3 This is a three-dimensional schematic diagram showing the positional relationship between the focusing component and the collimating unit of this utility model;

[0023] Figure 4 This is a schematic diagram of the light path in the vertical plane when the imaging unit of this utility model includes a refractive surface;

[0024] Figure 5 This is a schematic diagram of the reflection path after parallel incident light rays in a vertical plane when the light-concentrating component of this utility model is a reflective component;

[0025] Figure 6 This is a schematic diagram of the light reflection path when the light-concentrating component of this utility model is a reflective component and the light source is set at one of the focal points in the vertical plane;

[0026] Figure label:

[0027] 1. Light source; 2. Concentrating component; 3. Imaging unit; 31. Primary optical unit; 32. Refraction unit; 4. Collimation unit; 5. Light blocking component. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The micro-imaging array optical system and the vehicle lamp having the same are described in detail below with reference to the accompanying drawings.

[0032] like Figures 1-6 As shown, the micro-imaging array optical system according to an embodiment of the present invention includes: a light source 1, multiple light-concentrating components 2, and multiple imaging units 3; the multiple light-concentrating components 2 are located in the light-emitting direction of the light source 1, and the light-concentrating components 2 are curved surfaces with focal points, and the light-concentrating components 2 are used to converge the light emitted from a portion of the area of ​​the light source 1 to a point; the imaging unit 3 includes a primary optical unit 31 and a refraction unit 32, the focal point of the primary optical unit 31 coincides with the convergence point of the corresponding light-concentrating component 2, the primary optical unit 31 is used to form a light distribution near the focal point of the refraction unit 32, and the refraction unit 32 is used to image the light distribution near its focal point.

[0033] In this embodiment, the focusing component 2 can be a refractive focusing component or a reflective focusing component; such as Figure 5-6 As shown, when the focusing component 2 is a reflective focusing component, multiple focusing components 2 are arranged closely to avoid light waste caused by gaps between them. The focal length and focal position of multiple focusing components 2 can be adjusted as needed to adjust the angle of the emitted light. The light emitted by the light source 1 is dispersed onto multiple focusing components 2. Each focusing component 2 receives the light in its corresponding area and reflects the received light to form multiple different convergence points or convergence areas. Multiple imaging units 3 project and image the light distribution of the convergence points or convergence areas. The projection areas formed by multiple imaging units 3 are superimposed, or the projection areas formed by some imaging units 3 are superimposed, and the projection angle of the projection areas formed by other imaging units 3 is adjusted according to the projection requirements, which satisfies the road illumination performance and forms a uniform total projection area to achieve a uniform road projection effect. By using multiple focusing components 2, one light source 1 corresponds to multiple imaging units 3, reducing the requirement for the focal length size of the imaging unit 3, thus reducing the overall volume of the micro-imaging array optical system.

[0034] A collimation unit 4 is provided between the focusing component 2 and the light source 1. The focusing component 2 is a refractive component or a reflective component. The collimation unit 4 is used to collimate the light emitted by the light source 1 and direct the collimated light towards multiple focusing components 2. When the focusing component 2 is a refractive component, the light source 1 can be an LED. The collimation unit 4 is provided between the focusing component 2 and the light source 1 to collimate the light emitted by the light source 1 and direct the collimated light towards multiple focusing components 2. The multiple focusing components 2 then form converging points or converging regions from the received light. The multiple focusing components 2 and the collimation unit 4 can be integrally formed or separately set; for example... Figure 5 As shown, when the light-concentrating component 2 is a reflective component, the light rays are emitted in parallel after passing through the collimating unit 4 and are focused onto multiple light-concentrating components 2. After passing through the light-concentrating components 2, they are converged to a point. With this setting, the imaging unit 3 can be located on one side of the light-concentrating component 2, so as to shorten the dimension of the optical system in the height direction and improve the flexibility of assembly.

[0035] The primary optical unit 31 is a reflective surface, and the refractive unit 32 is a refractive surface. The primary optical unit 31 is located in the light-emitting direction of the light-concentrating component 2, so as to receive the light emitted by its corresponding light-concentrating component 2 and reflect it to the refractive unit 32.

[0036] In this embodiment, as Figure 1-2 As shown, the light emitted from the light source 1 is collimated by the collimating unit 4 and then reaches multiple focusing components 2. Each focusing component 2 refracts the light in its corresponding region, converging the light in that region to the focal point of the primary optical unit 31. The primary optical unit 31 shapes the light at the convergence point to form the desired light distribution at the focal point of the refraction unit 32. The refraction unit 32 projects the light distribution at the focal point into an image. In this embodiment, a reflective surface is used to reflect the light from the focusing components 2, allowing both the light source 1 and the focusing components 2 to be positioned above or below the imaging unit 3, avoiding them being on the same plane and shortening the front-to-back space.

[0037] Furthermore, the imaging unit 3 also includes a thick-walled component, with a reflective surface and a refractive surface formed at both ends of the thick-walled component. This facilitates the use of integral molding methods such as injection molding, simplifying subsequent installation steps. In this case, multiple focusing components 2 can be integrally molded with the imaging unit 3.

[0038] Both the primary optical unit 31 and the refractive unit 32 are refractive surfaces. The primary optical unit 31 is used to form a light distribution at the focal point of the refractive unit 32, and the refractive unit 32 is used to project and image the light distribution at its focal point.

[0039] In this embodiment, as Figure 4As shown, the light emitted by the light source 1 is collimated by the collimating unit 4 and then converged by multiple focusing components 2 to focus the light to the focal point of its corresponding primary optical unit 31. The primary optical unit 31 shapes the light at its convergence point, thereby forming the desired light distribution at the focal point of the refraction unit 32. Then, the refraction unit 32 projects the light distribution at its focal point into an image.

[0040] The focusing component 2 is a reflective component. The focusing component 2 is located in the light-emitting direction of the light source 1. The focusing component 2 is used to reflect the received light and focus the light to a point.

[0041] In this embodiment, as Figure 6 As shown, the light-concentrating component 2 includes an elliptical outline, and one of the focal points of each elliptical outline is common. At this time, the light source 1 is placed at the focal point so that the light is concentrated to another focal point after being reflected by the light-concentrating component 2, so that the imaging unit 3 can project an image. This setting reduces the number of collimating units 4 and saves installation space.

[0042] It also includes a light-blocking component 5, which is located between the light-concentrating component 2 and the imaging unit 3 or between the primary optical unit 31 and the refractive unit 32. The light-blocking component 5 can be set according to the shape required for the light and dark cutoff line to form the required light and dark cutoff line.

[0043] Light source 1 is an LED lamp bead.

[0044] A vehicle lamp with a micro-imaging array optical system, comprising a housing, a light source 1, multiple light-concentrating components 2, and multiple imaging units 3, all housed within the housing.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A microimaging array optical system characterized by, include: Light source (1); Multiple light-concentrating components (2) are located in the light-emitting direction of the light source (1). The light-concentrating components (2) are curved surfaces with focal points. The light-concentrating components (2) are used to focus the light emitted from a portion of the light source (1) to a single point. Multiple imaging units (3) are provided, each including a primary optical unit (31) and a refractive unit (32). The focal point of the primary optical unit (31) coincides with the convergence point of the corresponding focusing component (2). The primary optical unit (31) is used to form a light distribution near the focal point of the refractive unit (32), and the refractive unit (32) is used to image the light distribution near its focal point.

2. The microimaging array optical system of claim 1, wherein, A collimation unit (4) is provided between the light-concentrating component (2) and the light source (1). The light-concentrating component (2) is a refractive component or a reflective component. The collimation unit (4) is used to collimate the light emitted by the light source (1) and direct the collimated light to multiple light-concentrating components (2).

3. The microimaging array optical system of claim 2, wherein, When the light-concentrating component (2) is a refractive component, the plurality of light-concentrating components (2) and the collimating unit (4) are integrally formed.

4. The microimaging array optical system of claim 3, wherein, The primary optical unit (31) is a reflective surface, and the refractive unit (32) is a refractive surface. The primary optical unit (31) is located in the light-emitting direction of the light-concentrating component (2) to receive the light emitted by its corresponding light-concentrating component (2) and reflect it to the refractive unit (32).

5. The microimaging array optical system of claim 4, wherein, The imaging unit (3) also includes a thick-walled member, wherein the reflective surface and the refractive surface are respectively formed at both ends of the thick-walled member.

6. The microimaging array optical system of claim 3, wherein, Both the primary optical unit (31) and the refractive unit (32) are refractive surfaces. The primary optical unit (31) is used to form a light distribution at the focal point of the refractive unit (32) with the light at its focal point. The refractive unit (32) is used to... right The light distribution at its focal point is used for projection imaging.

7. The microimaging array optical system of claim 1, wherein, The light-concentrating component (2) is a reflective component. The light-concentrating component (2) is located in the light-emitting direction of the light source (1). The light-concentrating component (2) is used to reflect the received light and focus the light to a point.

8. The microimaging array optical system of claim 1, wherein, It also includes a light-blocking component (5), which is located between the light-concentrating component (2) and the imaging unit (3) or between the primary optical unit (31) and the refractive unit (32) to form the desired light and dark cutoff line.

9. The microimaging array optical system of claim 1, wherein, The light source (1) is an LED lamp bead.

10. A vehicle lamp having a microimaging array optical system, characterized by comprising: The micro-imaging array optical system as described in any one of claims 1-9 includes a housing, wherein the light source (1), multiple light-concentrating components (2), and multiple imaging units (3) are all disposed within the housing.

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