Light-emitting structure and light-emitting system with the same

• US 10,738,969 B2
• Filed: 06/29/2016
• Issued: 08/11/2020
• Est. Priority Date: 06/29/2016
• Status: Active Grant

• Current Assignee: Shenzhen Ewinlight Technology Co., Ltd.
• Original Assignee: Shenzhen Ewinlight Technology Co., Ltd.
• Inventors: Li, Shihao
• Primary Examiner(s): Williams, Joseph L
• Assistant Examiner(s): Diaz, Jose M
• Application Number:
  US16/314,386
• Publication Number:
  US 20190154231A1
• Time in Patent Office: 1,504 Days
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21V 5/045 the lens having discontinuous faces, e.g. Fresnel lenses
• CPC Class Codes: F21V 7/0025 Combination of two or more reflectors for a single light source array of reflectors for a cluster of light sources F21V7/0083
• CPC Class Codes: F21V 7/0033 with successive reflections from one reflector to the next or following
• CPC Class Codes: F21V 7/0041 for avoiding direct view of the light source or to prevent dazzling
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21V 7/0091 using total internal reflection
• CPC Class Codes: F21V 7/04 Optical design
• CPC Class Codes: F21V 7/043 with cylindrical surface
• CPC Class Codes: F21V 7/06 with parabolic curvature
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/16 square or rectangular, e.g. for light panels
• CPC Class Codes: F21Y 2105/18 annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
• CPC Class Codes: F21Y 2115/30 Semiconductor lasers

Abstract

A light-emitting structure and a light-emitting system with the same are provided. The light-emitting structure includes a plurality of extension portions (10) and a plurality of light adjusting portions (20), and the plurality of extension portions (10) and the plurality of light adjusting portions (20) are sequentially alternately connected; the plurality of extension portions (10) controls the light-emitting range of the light-emitting structure, and the plurality of light adjusting portions (20) is disposed at a predetermined angle with respect to an incident light direction to control a light-emitting direction.

Claims

1. A light-emitting structure, comprising a plurality of extension portions and a plurality of light adjusting portions, wherein the plurality of extension portions and the plurality of light adjusting portions are sequentially alternately connected;

the plurality of extension portions controls the light-emitting range of the light-emitting structure, and the plurality of light adjusting portions is disposed at a predetermined angle with respect to an incident light direction to control a light-emitting direction,

wherein in a horizontal extending direction, the extension surfaces of the respective extension portions are parallel planes, and the extension surfaces of the respective extension portions extend in the same horizontal plane;

each of the light adjusting portions protrudes from the horizontal plane, and the extension surface of each of the extension portions is disposed at a second predetermined angle with a light adjusting surface of the adjacent light adjusting portion.

2. The light-emitting structure according to claim 1, wherein in a horizontal extending direction, extension surfaces of the respective extension portions are planes which are parallel and spaced apart from each other, and the extension surface of each of the extension portions is disposed at a first predetermined angle with a light adjusting surface of the adjacent light adjusting portion.

3. The light-emitting structure according to claim 1, wherein the extension surfaces of the respective extension portions extend in the same reference plane, and the reference plane is arranged at an angle with the horizontal plane;

each of the light adjusting portions protrudes from the reference plane, and the light adjusting surface of each of the light adjusting portions is disposed at a third predetermined angle with the horizontal plane.

4. The light-emitting structure according to claim 1, wherein the extension surface of each of the extension portions is a curved surface;

each of the light adjusting portion protrudes from the adjacent extension surface, and the light adjusting surface of the each of the light adjusting portions is disposed at a fourth predetermined angle with the horizontal plane.

5. The light-emitting structure according to claim 1, wherein the extension surface of each of the extension portions is a plane;

the extension surfaces of the adjacent extension portions are disposed at gradually increased angles with the horizontal plane;

each of the light adjusting portions protrudes from the adjacent extension surface, and the light adjusting surface of each of the light adjusting portions is disposed at a fifth predetermined angle with the horizontal plane.

6. A light-emitting system, comprising a light source portion and a light-emitting structure, wherein the light source portion comprises a light-emitting source, wherein the light-emitting structure is the light-emitting structure according to claim 1, and the light emitted from the light-emitting source is directionally output by the light-emitting structure.

7. The light-emitting system according to claim 6, wherein the light-emitting source is one of directional light sources of a laser light source, a LED laser light source, an optical fiber source, a spotlight light source, a parabolic aluminum reflector (PAR) light source, and an AR light source.

8. The light-emitting system according to claim 6, wherein the light source portion also comprises a reflection cup, and the light-emitting source is disposed inside a notch of the reflection cup;

a reflecting surface of the reflection cup reflects and converges light emitted from the light-emitting source and then emits the light, and the emitted light illuminates light adjusting surfaces of the light adjusting portions of the light-emitting structure for directional light output.

9. The light-emitting system according to claim 8, wherein the reflection cup is one of a light-converging TIR lens, a convex lens or a Fresnel lens which has a light converging function.

10. The light-emitting system according to claim 8, wherein the light source portion also comprises a first reflective mirror;

a reflective mirror surface of the first reflective mirror is disposed opposite to the reflecting surface of the reflection cup;

and the reflective mirror surface of the first reflective mirror reflects light emitted from the reflecting surface to light adjusting surfaces of the light adjusting portions.

11. The light-emitting system according to claim 10, wherein the light source portion also comprises a second reflective mirror;

a reflective mirror surface of the second reflective mirror is disposed opposite to the reflective mirror surface of the first reflective mirror; and

the reflective mirror surface of the second reflective mirror reflects light reflected from the first reflective mirror to light adjusting surfaces of the light adjusting portions.

12. The light-emitting system according to claim 8, wherein the number of the light source portions is plural, and the plurality of light source portions is arranged in a linear single row or a plurality of rows;

the extension surface of each of the extension portions of the light-emitting structure and the light adjusting surface of each of the light adjusting portions are strip-shaped planes, and each of the strip-shaped planes is parallel to a straight line formed by arrangement of the plurality of light source portions;

the extension surface of each of the extension portions and the light adjusting surface of each of the light adjusting portions form a step surface, and the light emitted from the light source portions directly illuminates the light adjusting surfaces of the light adjusting portions and then is reflected out directionally.

13. The light-emitting system according to claim 11, wherein the number of the light source portions is plural, and the plurality of light source portions is arranged in a linear single row or a plurality of rows;

an extension surface of each of the extension portions of the light-emitting structure and a light adjusting surface of each of the light adjusting portions are strip-shaped planes, and each of the strip-shaped planes is parallel to a straight line formed by arrangement of the plurality of light source portions;

the extension surface of each of the extension portions and the light adjusting surface of each of the light adjusting portions form a step surface;

each of the extension portions and each of the light adjusting portions are made of a transparent optical material; and

light emitted from the light source portions is transmitted through the transparent optical material and then illuminates the light adjusting surfaces of the light adjusting portions for directional total reflection.

14. The light-emitting system according to claim 11, wherein the number of the light source portions is plural, and the plurality of light source portions is arranged in a linear single row or a plurality of rows;

an extension surface of each of the extension portions of the light-emitting structure and a light adjusting surface of each of the light adjusting portions are strip-shaped planes, and each of the strip-shaped planes is parallel to a straight line formed by arrangement of the plurality of light source portions;

the extension surface of each of the extension portions and the light adjusting surface of each of the light adjusting portions form a step surface;

each of the extension portions and each of the light adjusting portions are made of a transparent optical material; and

the light emitted from the light source portions is transmitted through the transparent optical material and then is refracted by the light adjusting surfaces of the light adjusting portions.

15. The light-emitting system according to claim 13, wherein the transparent optical material has a light incident surface disposed opposite to the light adjusting surface;

or the transparent optical material has a plurality of light incident surfaces which sequentially form a step shape.

16. The light-emitting system according to claim 8, wherein each of the extension portions and each of the light adjusting portions are concentrically disposed with a center point being a circle center, and the extension surface of each of the extension portions and the light adjusting surface of each of the light adjusting portions form a step surface;

the plurality of light source portions is circumferentially arranged with the center point being the circle center, and the plurality of light source portions is disposed around the light-emitting structure.

17. The light-emitting system according to claim 8, wherein each of the extension portions and each of the light adjusting portions are concentrically disposed with a center point being the circle center, and the extension surface of each of the extension portions and the light adjusting surface of each of the light adjusting portions form a step surface;

the plurality of light source portions is circumferentially arranged with the center point being the circle center, and the light-emitting structure is disposed around the light source portions.

18. The light-emitting system according to claim 14, wherein the transparent optical material has a light incident surface disposed opposite to the light adjusting surface;

or the transparent optical material has a plurality of light incident surfaces which sequentially form a step shape.