LENS FOR FORMING BEAM PATTERN IN LOW-BEAM ZONE III, VEHICLE ILLUMINATOR, AND AUTOMOBILE
20220307667 · 2022-09-29
Assignee
Inventors
- Zhiping Qiu (Shanghai, CN)
- He Zhu (Shanghai, CN)
- Cong LI (Shanghai, CN)
- Dapan Zhang (Shanghai, CN)
- Wenhui Sang (Shanghai, CN)
Cpc classification
F21S41/32
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21S41/275
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21S41/255
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F21S41/255
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21S41/141
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A lens for forming a beam pattern in a low-beam zone III, a vehicle illuminator, and an automobile. The lens for forming the beam pattern in the low-beam zone III comprises a lens main body. A low-beam zone III formation structure is provided at or integrally formed with a light-entering surface of the lens main body. The low-beam zone III formation structure comprises multiple protrusions protruding from the light-entering surface and is used to diffuse light. The lens for forming the beam pattern in the low-beam zone III has a simple structure, a small volume and high optical efficiency.
Claims
1. A lens for forming a beam pattern in a low-beam zone III, comprising a lens main body, wherein a low-beam zone III formation structure is arranged or integrally formed on a light-entering surface of the lens main body, and comprises a plurality of multiple protrusions protruding from the light-entering surface for diffusing light.
2. The lens for forming the beam pattern in the low-beam zone III according to claim 1, wherein the low-beam zone III formation structure comprises a plurality of longitudinal strip-shaped multiple protrusions extending along an up-down direction (Z) of the lens main body; or the low-beam zone III formation structure comprises a plurality of horizontal strip-shaped multiple protrusions extending along a left-right direction (Y) of the lens main body; or the low-beam zone III formation structure comprises a plurality of block-shaped multiple protrusions formed by connection of convex curved surfaces.
3. The lens for forming the beam pattern in the low-beam zone III according to claim 1, wherein an upper and middle region of the light-entering surface of the lens main body is a plane in the up-down direction (Z), a lower region of the light-entering surface of the lens main body is a plane inclining toward a light emitting direction from top to bottom, and the low-beam zone III formation structure is arranged or integrally formed on the lower region of the light-entering surface.
4. The lens for forming the beam pattern in the low-beam zone III according to claim 2, wherein the low-beam zone III formation structure comprises the plurality of longitudinal strip-shaped multiple protrusions arranged from a left side edge to a right side edge of the light-entering surface in sequence, the longitudinal strip-shaped multiple protrusions are connected to form a strip-shaped structure, and a longitudinal section line of a light-entering surface of each of the longitudinal strip-shaped multiple protrusions inclines toward the light emitting direction from top to bottom; or the low-beam zone III formation structure comprises a multiple protrusions structure arranged on the light-entering surface and formed by connection of the plurality of longitudinal strip-shaped multiple protrusions, the width of a horizontal section of each of the longitudinal strip-shaped multiple protrusions is gradually decreased from middle to two sides, and the longitudinal section line of the light-entering surface of each of the longitudinal strip-shaped multiple protrusions inclines toward the light emitting direction from top to bottom.
5. The lens for forming the beam pattern in the low-beam zone III according to claim 2, wherein an outer edge of a horizontal section of each of the longitudinal strip-shaped multiple protrusions is a convex curve of which a central region is higher than two side regions, and an outer edge of a longitudinal section of each of the horizontal strip-shaped multiple protrusions is a convex curve of which a central region is higher than two side regions.
6. The lens for forming the beam pattern in the low-beam zone III according to claim 2, wherein the longitudinal strip-shaped multiple protrusions are equal in width, and the horizontal strip-shaped multiple protrusions are equal in width, and a central region of each of the block-shaped multiple protrusions is higher than surrounding regions.
7. (canceled)
8. The lens for forming the beam pattern in the low-beam zone III according to claim 1, wherein a light emitting surface of the lens main body is a convex curved surface, and a grid structure is arranged or integrally formed on the light emitting surface.
9. (canceled)
10. The lens for forming the beam pattern in the low-beam zone III according to claim 8, wherein a single grid unit in the grid structure is a convex curved surface, a concave curved surface or a plane, and the single grid unit in the grid structure is rectangular, square, triangular or polygonal.
11-12. (canceled)
13. A vehicle illuminator, wherein a light propagation path is formed in the vehicle illuminator, the vehicle illuminator comprises a light source, a primary optical element and a lens, and the lens is the lens forming the beam pattern in the low-beam zone III according to claim 1.
14. The vehicle illuminator according to claim 13, wherein the primary optical element is of a condenser structure or a reflector structure.
15. (canceled)
16. An automobile, comprising the vehicle illuminator according to claim 13.
17. The vehicle illuminator according to claim 13, wherein the low-beam zone III formation structure comprises a plurality of longitudinal strip-shaped multiple protrusions extending along an up-down direction (Z) of the lens main body; or the low-beam zone III formation structure comprises a plurality of horizontal strip-shaped multiple protrusions extending along a left-right direction (Y) of the lens main body; or the low-beam zone III formation structure comprises a plurality of block-shaped multiple protrusions formed by connection of convex curved surfaces.
18. The vehicle illuminator according to claim 13, wherein an upper and middle region of the light-entering surface of the lens main body is a plane in the up-down direction (Z), a lower region of the light-entering surface of the lens main body is a plane inclining toward a light emitting direction from top to bottom, and the low-beam zone III formation structure is arranged or integrally formed on the lower region of the light-entering surface.
19. The vehicle illuminator according to claim 17, wherein the low-beam zone III formation structure comprises the plurality of longitudinal strip-shaped multiple protrusions arranged from a left side edge to a right side edge of the light-entering surface in sequence, the longitudinal strip-shaped multiple protrusions are connected to form a strip-shaped structure, and a longitudinal section line of a light-entering surface of each of the longitudinal strip-shaped multiple protrusions inclines toward the light emitting direction from top to bottom; or the low-beam zone III formation structure comprises a multiple protrusions structure arranged on the light-entering surface and formed by connection of the plurality of longitudinal strip-shaped multiple protrusions, the width of a horizontal section of each of the longitudinal strip-shaped multiple protrusions is gradually decreased from middle to two sides, and the longitudinal section line of the light-entering surface of each of the longitudinal strip-shaped multiple protrusions inclines toward the light emitting direction from top to bottom.
20. The vehicle illuminator according to claim 17, wherein an outer edge of a horizontal section of each of the longitudinal strip-shaped multiple protrusions is a convex curve of which a central region is higher than two side regions, and an outer edge of a longitudinal section of each of the horizontal strip-shaped multiple protrusions is a convex curve of which a central region is higher than two side regions.
21. The vehicle illuminator according to claim 17, wherein the longitudinal strip-shaped multiple protrusions are equal in width, the horizontal strip-shaped multiple protrusions are equal in width, and a central region of each of the block-shaped multiple protrusions is higher than surrounding regions.
22. The vehicle illuminator according to claim 13, wherein a light emitting surface of the lens main body is a convex curved surface, and a grid structure is arranged or integrally formed on the light emitting surface.
23. The vehicle illuminator according to claim 22, wherein a single grid unit in the grid structure is a convex curved surface, a concave curved surface or a plane, and the single grid unit in the grid structure is rectangular, square, triangular or polygonal.
24. The automobile according to claim 16, wherein the low-beam zone III formation structure comprises a plurality of longitudinal strip-shaped multiple protrusions extending along an up-down direction (Z) of the lens main body; or the low-beam zone III formation structure comprises a plurality of horizontal strip-shaped multiple protrusions extending along a left-right direction (Y) of the lens main body; or the low-beam zone III formation structure comprises a plurality of block-shaped multiple protrusions formed by connection of convex curved surfaces.
25. The automobile according to claim 16, wherein an upper and middle region of the light-entering surface of the lens main body is a plane in the up-down direction (Z), a lower region of the light-entering surface of the lens main body is a plane inclining toward a light emitting direction from top to bottom, and the low-beam zone III formation structure is arranged or integrally formed on the lower region of the light-entering surface.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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TABLE-US-00001 Brief Description of the Symbols: 1. lens main body 11. upper and middle region of light-entering surface 12. lower region of light-entering 13. low-beam zone III formation surface structure 13a. longitudinal strip-shaped 13b. horizontal strip-shaped multiple protrusions multiple protrusions 13c. block-shaped multiple protrusions 14. light emitting surface 15. light-entering surface 2. primary optical element
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0055] Specific embodiments of the present disclosure will be illustrated in detail in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustrating and explaining the present disclosure, rather than limiting the present disclosure.
[0056] Firstly, it should be noted that in order to clearly illustrate the technical solutions of the present disclosure in the following description, some involved orientation words such as “rear end” and “front end” have meanings analogized according to orientations indicated by a light emitting path, for example, for a lens, an end, close to a light source, of the lens is a rear end, and an end, away from the light source, of the lens is a front end; or it also can be understood that an end where light enters is the rear end, and an end where light is emitted is the front end. A light emitting direction described in the present disclosure refers to a direction in which light emitted by the light source propagates to a lens through a primary optical element, i.e., a light propagation path. In addition, in order to facilitate the following description, according to the description about the overall orientation of an automobile by engineering technicians in the automobile industry, a direction Y represents a left-right direction of an automobile in normal use, a direction X represents a front-back direction of the automobile in normal use, and a direction Z represents an up-down direction of an automobile in normal use.
[0057] In the description of the present disclosure, it should be noted that unless otherwise definitely specified and defined, terms “installation” and “connection” should be interpreted in a broad sense, for example, the connection can be fixed connection, detachable connection or integral connection, may also be direct connection, or indirect connection by an inter-medium, and can be internal connection of two elements or interaction of the two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure based on specific situations.
[0058] As shown in
[0059] Further, as shown in
[0060] The upper and middle region 11 of the light-entering surface of the lens main body 1 is the plane arranged in the up-down direction Z, and the lower region 12 of the light-entering surface inclines toward the light emitting direction from top to bottom, and due to such a structure, light emitted to the low-beam zone III formation structure is refracted to a zone III of a low beam light shape, i.e., above a cutoff line, by a light emitting surface 14 of the lens main body 1. Meanwhile, the low-beam zone III formation structure 13 is arranged on the lower region 12 of the light-entering surface of the lens main body 1, so that light can be emitted into the lens main body 1 through the low-beam zone III formation structure 13, and is refracted by the light emitting surface 14 of the lens main body 1 to form the beam pattern in the low-beam zone III.
[0061] As shown in
[0062] More specifically, an outer edge of a horizontal section of each of the longitudinal strip-shaped multiple protrusions 13a is a convex curve of which a central region is higher than two side regions.
[0063] Further specifically, the longitudinal strip-shaped multiple protrusions 13a are equal in width.
[0064] As shown in
[0065] As shown in
[0066] More specifically, an outer edge of a longitudinal section of each of the horizontal strip-shaped multiple protrusions 13b is a convex curve of which a central region is higher than two side regions.
[0067] Further specifically, the horizontal strip-shaped multiple protrusions 13b are equal in width.
[0068] As shown in
[0069] As shown in
[0070] As a specific structure form of the optional specific embodiment, a central region of each of the block-shaped multiple protrusions 13c is higher than surrounding regions, and the block-shaped multiple protrusions 13c are convenient for diffusing light all around.
[0071] In the above three specific embodiments of the present disclosure, the multiple protrusions of the low-beam zone III formation structure 13 are respectively the longitudinal strip-shaped multiple protrusions 13a, the horizontal strip-shaped multiple protrusions 13b and the block-shaped multiple protrusions 13c, wherein the longitudinal strip-shaped multiple protrusions 13a can diffuse light passing through the longitudinal strip-shaped multiple protrusions 13a toward the left-right direction Y, the horizontal strip-shaped multiple protrusions 13b can diffuse light passing through the horizontal strip-shaped multiple protrusions 13b toward the up-down direction Z, and the block-shaped multiple protrusions 13c can diffuse light passing through the block-shaped multiple protrusions 13c all around. However, the multiple protrusions of the low-beam zone III formation structure 13 are not limited to the three forms, and can also adopt other shapes, and specific shapes are changed according to light shape demands.
[0072] As another specific embodiment of the present disclosure, the low-beam zone III formation structure 13 includes the plurality of longitudinal strip-shaped multiple protrusions 13a which are arranged from a left side edge to a right side edge of the light-entering surface 15 in sequence, the plurality of longitudinal strip-shaped multiple protrusions 13a are connected to form a strip-shaped structure, and a longitudinal section line of the light-entering surface of each of the longitudinal strip-shaped multiple protrusions 13a inclines toward the light emitting direction from top to bottom.
[0073] Optionally, the low-beam zone III formation structure 13 includes a multiple protrusions structure arranged on the light-entering surface 15 and formed by connection of the plurality of longitudinal strip-shaped multiple protrusions 13a, the width of a horizontal section of each of the longitudinal strip-shaped multiple protrusions 13a is gradually decreased from middle to two sides, and a longitudinal section line of a light-entering surface of each of the longitudinal strip-shaped multiple protrusions 13a inclines toward the light emitting direction from top to bottom.
[0074] As shown in
[0075] As shown in
[0076] As another specific structure form of the present disclosure, the light emitting surface 14 of the lens main body 1 is a convex curved surface.
[0077] As another specific embodiment of the present disclosure, a grid structure is arranged or integrally formed on the light emitting surface 14.
[0078] Further, a single grid unit in the grid structure is a convex curved surface, a concave curved surface or a plane.
[0079] More specifically, when being the plane, the single grid unit in the grid structure can be rectangular, square, triangular or polygonal, or can be in other irregular outline shapes. A grid structure shown in
[0080] Obviously, the grid structure can be arranged on the light emitting surface 14 and can enlarge lighting angle and improve light shape uniformity.
[0081] As another specific embodiment of the present disclosure, the light-entering surface 15 is a plane or a convex curved surface.
[0082] As shown in
[0083] The present disclosure also provides a vehicle illuminator in which a light propagation path is formed. The vehicle illuminator includes a light source, a primary optical element 2 and a lens, and the lens is the lens for forming the beam pattern in the low-beam zone III according to any one of above technical solutions.
[0084] Preferentially, the primary optical element 2 is of a condenser structure or a reflector structure.
[0085] In a specific embodiment shown in
[0086] In a specific embodiment shown in
[0087] Two specific embodiments in
[0088] More preferably, the light source can be an LED light source.
[0089] The LED light source, as a new energy source, gradually replaces traditional light sources, is not only energy efficient and environmentally friendly, but also long in service life, high in brightness, stable in performance and high in luminescence purity, so that the vehicle illuminator designed based on the LED light source has broad development prospect.
[0090] It should be noted herein that the light source of the present disclosure adopts the LED light source, which does not mean that the light source is only limited to the LED light source, and the use of a laser light source or other similar light sources is regarded as an equivalent replacement.
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[0092] Further, the present disclosure also provides an automobile which includes the vehicle illuminator in any one of the above technical solutions.
[0093] It can be seen from the above description that the lens for forming the beam pattern in the low-beam zone III of the present disclosure includes the lens main body 1, wherein the low-beam zone III formation structure 13 is arranged or integrally formed on the light-entering surface 15 of the lens main body 1, and includes the plurality of multiple protrusions protruding from the light-entering surface 15 for diffusing light. The low-beam zone III formation structure 13 is arranged or integrally formed on the light-entering surface 15 of the lens for forming the beam pattern in the low-beam zone III, can form the beam pattern in the low-beam zone III, is arranged on the light-entering surface 15 of the lens main body 1, and is simple and convenient to process. Meanwhile, the low-beam zone III formation structure 13 of the lens cannot interfere with other parts easily, and thus is more stable in optical performance.
[0094] The preferential embodiments of the present disclosure are described above in detail in combination with the accompanying drawings, but the present disclosure is not limited to the specific details in the above embodiments, various simple modifications can be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and these simple modifications fall within the scope of protection of the present disclosure.
[0095] In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manners in the case of no confliction. In order to avoid unnecessary repetition, various possible combinations are not described separately in the present disclosure.
[0096] Furthermore, the various embodiments of the present disclosure can also be combined optionally, and should be regarded as the content disclosed in the present disclosure as long as the concept of the present disclosure is not violated.