Optical system and vehicle lamp suitable for small caliber

Abstract

The utility model discloses a kind of optical system and car light suitable for small caliber, the optical system suitable for small caliber includes: primary optical unit and imaging system;The primary optical unit is located on the light direction of light source, the primary optical unit is used to converge received light in a small area;The imaging system is located on the light direction of primary optical unit, the imaging system has virtual focus point, the virtual focus point of the imaging system is located on its light direction, the virtual focus point of the imaging system is located at the small area converged by primary optical unit, the imaging system collimates light at least in one direction, the utility model has the advantages that space size is occupied, and light utilization rate is high.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to optical systems, and more particularly to an optical system and automotive lighting suitable for small apertures. Background Technology

[0002] In line with the current trend of miniaturization in automotive headlights, small-aperture designs have attracted much attention. Typically, a primary optical unit focuses light onto a lens, which then projects the converged light to form an image. This design results in a large distance between the primary optical unit and the lens unit, requiring significant installation space. Furthermore, because the light diffuses before reaching the lens, some light fails to reach it, leading to considerable light loss. To improve light utilization, a small-aperture optical system and automotive headlight are proposed. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] Therefore, this utility model proposes an optical system and vehicle lamp suitable for small apertures. The optical system suitable for small apertures has the advantages of small space occupation and high light utilization.

[0005] An optical system suitable for small apertures according to an embodiment of the present invention includes: a primary optical unit and an imaging system; the primary optical unit is disposed in the light-emitting direction of the light source, and the primary optical unit is used to converge the received light into a small area; the imaging system is disposed in the light-emitting direction of the primary optical unit, the imaging system has a virtual focal point, the virtual focal point of the imaging system is located in its light-emitting direction, the virtual focal point of the imaging system is located at the small area converged by the primary optical unit, and the imaging system collimates the light in at least one direction.

[0006] According to one embodiment of the present invention, the imaging system includes a first imaging unit, the first imaging unit having a virtual focal point on its contour line in one direction, the virtual focal point coinciding with the convergence point of a primary optical unit, and the first imaging unit being able to collimate light in that direction, the first imaging unit being formed by extending the contour line.

[0007] According to one embodiment of the present invention, the imaging system further includes a second imaging unit, the second imaging unit having a virtual focal point on the contour line in another direction, the virtual focal point coinciding with the convergence point of the primary optical unit, and the second imaging unit being able to collimate light in that direction, the second imaging unit being formed by extending the contour line.

[0008] According to one embodiment of the present invention, the imaging system includes a third imaging unit having a virtual focal point that coincides with the convergence point of the primary optical unit and is capable of collimating light rays in all directions.

[0009] According to one embodiment of the present invention, the primary optical unit is a concentrator.

[0010] According to one embodiment of the present invention, the primary optical unit and the imaging system are integrally formed.

[0011] According to one embodiment of the present invention, the primary optical unit is a reflector.

[0012] According to one embodiment of the present invention, it further includes a diffusion pattern, which is disposed in the light-emitting direction of the imaging system.

[0013] A vehicle light comprising any of the aforementioned optical systems suitable for small apertures.

[0014] The beneficial effects of this invention are that it uses a primary optical unit to form the light convergence point in the light-emitting direction of the imaging system, so that the light rays converge inward when passing through the imaging system. In other words, most of the light rays pass through the imaging system and are refracted by the imaging system, ensuring the utilization rate of the light rays after refraction by the primary optical unit. In addition, this design avoids the need to form a focal point between the primary optical unit and the imaging system, thus shortening the distance between the primary optical unit and the imaging system, making the entire optical system structure more compact, reducing the overall volume, and reducing the space occupied.

[0015] 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.

[0016] 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

[0017] 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: Figure 1 This is a schematic diagram of the primary optical unit and imaging system of this utility model being integrally formed; Figure 2 This is a schematic diagram of the imaging system of this utility model, which consists of a first imaging unit and a second imaging unit, and the first imaging unit is integrally formed with the primary optical unit. Figure 3This is a schematic diagram of the reverse path of light rays when the imaging system of this utility model performs multi-directional imaging; Figure 4 This utility model imaging system consists of a first imaging unit and a second imaging unit, and the first imaging unit is integrally formed with the primary optical unit, which is a schematic diagram of the light propagation principle in the first direction. Figure 5 This is a schematic diagram of the light propagation principle in the second direction when the imaging system of this utility model consists of a first imaging unit and a second imaging unit, and the first imaging unit is integrally formed with the primary optical unit. Figure 6 This is a schematic diagram of the primary optical unit of this utility model, which is composed of a collimating component and a refractive component. Figure 7 This is a schematic diagram of the primary optical unit of this utility model being a reflector; Figure label: 1. Light source; 2. Primary optical unit; 21. Collimation component; 22. Refraction component; 3. Imaging system; 31. First imaging unit; 32. Second imaging unit; 33. Third imaging unit. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] The following describes in detail, with reference to the accompanying drawings, an optical system and vehicle lamp suitable for small apertures according to embodiments of the present invention.

[0022] like Figures 1-7 As shown, the optical system suitable for small aperture according to an embodiment of the present invention includes: a primary optical unit 2 and an imaging system 3; the primary optical unit 2 is disposed in the light-emitting direction of the light source 1, and the primary optical unit 2 is used to converge the received light into a small area; the imaging system 3 is disposed in the light-emitting direction of the primary optical unit 2, the imaging system 3 has a virtual focal point, the virtual focal point of the imaging system 3 is located in its light-emitting direction, the virtual focal point of the imaging system 3 is located at the small area converged by the primary optical unit 2, and the imaging system 3 collimates the light in at least one direction.

[0023] In this embodiment, the small area converged by the primary optical unit 2 can be a point or a small light distribution. By using the primary optical unit 2 to converge the light emitted from the light source 1, the effect of reducing the angle of the light rays is achieved; for example... Figure 3 As shown, by forming the convergence point in the light-emitting direction of the imaging system 3, the light rays converge inward when passing through the imaging system 3. In other words, most of the light rays pass through the imaging system 3 and are refracted out by the imaging system 3, ensuring the utilization rate of the light rays after refraction by the primary optical unit 2. In addition, this arrangement avoids the need to form a focal point between the primary optical unit 2 and the imaging system 3, thus shortening the distance between the primary optical unit 2 and the imaging system 3, making the entire optical system structure more compact, reducing the overall volume, and reducing the space occupied.

[0024] The imaging system 3 may include only the first imaging unit 31 or at least the first imaging unit 31. When the imaging system 3 includes only the first imaging unit 31, the first imaging unit 31 is a lens that is collimated in all directions, such as a spherical lens.

[0025] Specifically, the imaging system 3 includes a third imaging unit 33, which has a virtual focal point that coincides with the convergence point of the primary optical unit 2 and is capable of collimating light in that direction.

[0026] The imaging system 3 includes a first imaging unit 31. The contour line of the first imaging unit 31 in one direction has a virtual focal point, which coincides with the convergence point of the primary optical unit 2. The first imaging unit 31 is capable of collimating light in all directions. The first imaging unit 31 is formed by extending the contour line.

[0027] The imaging system 3 also includes a second imaging unit 32, the second imaging unit 32 having a virtual focal point on the contour line in another direction, the virtual focal point coinciding with the convergence point of the primary optical unit 2, and the second imaging unit 32 being able to collimate light in that direction, the second imaging unit 32 being formed by extending the contour line.

[0028] In this embodiment, when the imaging system 3 includes at least a first imaging unit 31, it also includes a second imaging unit 32. The first imaging unit 31 is a collimating lens in a first direction, such as a cylindrical lens, while the second imaging unit 32 is a cylindrical lens that collimates the received light in a second direction. The second imaging unit 32 is located in the light-emitting direction of the first imaging unit 31. In other words, when light passes through the first imaging unit 31, it is collimated in the first direction, but has almost no effect on the light in the other direction. When light passes through the second imaging unit 32, it collimates the light in the second direction, but has almost no effect on the light in the first direction. By dividing the imaging system 3 into a first imaging unit 31 and a second imaging unit 32, the light has different illumination sizes in the width and height directions.

[0029] The first and second directions are horizontal and vertical, respectively. The direction and angle can be adjusted according to needs during assembly, and are not limited to horizontal and vertical placement.

[0030] Primary optical unit 2 is a concentrator. It is suitable for applications where vertical installation space is limited.

[0031] The primary optical unit 2 and the imaging system 3 are integrally molded to simplify subsequent installation steps and reduce assembly tolerances.

[0032] like Figure 6 As shown, the primary optical unit 2 is composed of a collimating component 21 and a refractive component 22. The collimating component 21 can be a condenser, and the refractive component 22 can be a lens; that is, the light source 1 is collimated by the collimating component 21 and then focused by the refractive component 22.

[0033] Primary optical unit 2 is a reflector. This is suitable for applications where vertical installation space is limited.

[0034] It also includes a diffusion pattern, which is set in the light-emitting direction of the imaging system 3 to improve the uniformity of illumination.

[0035] A vehicle light, including any of the optical systems suitable for small apertures.

[0036] 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.

[0037] 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. An optical system suitable for small apertures, characterized in that, include: Primary optical unit (2), the primary optical unit (2) is located in the light-emitting direction of the light source (1), the primary optical unit (2) is used to focus the received light into a small area; An imaging system (3) is located in the light-emitting direction of the primary optical unit (2). The imaging system (3) has a virtual focal point located in its light-emitting direction. The virtual focal point of the imaging system (3) is located in a small area where the primary optical unit (2) converges. The imaging system (3) collimates the light in at least one direction.

2. The optical system suitable for small apertures according to claim 1, characterized in that, The imaging system (3) includes a first imaging unit (31), which has a virtual focal point on a contour line in one direction. The virtual focal point coincides with the convergence point of the primary optical unit (2), and the first imaging unit (31) is capable of collimating light in that direction. The first imaging unit (31) is formed by extending the contour line.

3. The optical system suitable for small apertures according to claim 2, characterized in that, The imaging system (3) further includes a second imaging unit (32), which has a virtual focal point on the contour line in another direction. The virtual focal point coincides with the convergence point of the primary optical unit (2), and the second imaging unit (32) is capable of collimating light in this direction. The second imaging unit (32) is formed by extending the contour line.

4. The optical system suitable for small apertures according to claim 1, characterized in that, The imaging system (3) includes a third imaging unit (33) having a virtual focal point that coincides with the convergence point of the primary optical unit (2) and is capable of collimating light in all directions.

5. The optical system suitable for small apertures according to claim 1, characterized in that, The primary optical unit (2) is a condenser.

6. The optical system suitable for small apertures according to claim 5, characterized in that, The primary optical unit (2) and the imaging system (3) are integrally formed.

7. The optical system suitable for small apertures according to claim 1, characterized in that, The primary optical unit (2) is a reflector.

8. The optical system suitable for small apertures according to claim 1, characterized in that, It also includes a diffusion pattern, which is located in the light-emitting direction of the imaging system (3).

9. A vehicle light, characterized in that, Includes the optical system suitable for small apertures as described in any one of claims 1-8.

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