Led lamp light distribution system and illumination system

Patent metadata

Field	Value
Publication number	US-2019113205-A1
Application number	US-201816146115-A
Country	US
Kind code	A1
Filing date	Sep 28, 2018
Priority date	Oct 18, 2017
Publication date	Apr 18, 2019
Grant date	—

Abstract

An LED lamp light distribution system and illumination system, the illumination system comprises an LED lamp light distribution system, and at least one illuminated surface. The LED lamp light distribution system comprises an LED chip, a lens, and a light reflecting device. The lens comprises a lens optical axis, a light source setting groove, and an exit surface. The light source setting groove comprises a first contour line, and the exit surface comprises a first exit surface contour line. The first contour line and the first exit surface contour line complete the convergence of the emergent light of the LED chip toward the lens optical axis. The light source setting groove comprises a second contour line, the exit surface comprises a second exit surface contour line, and the second contour line and the second exit surface contour line complete the diffusion of the emergent light of the LED chip away from the lens optical axis. The illuminated surface is perpendicular to the reflecting plate and the lens optical axis. The illumination system can provide users with specific lighting effects to meet the needs of users.

First claim

1 . An LED lamp light distribution system, characterized in that: the LED lamp light distribution system comprises an LED chip, a lens disposed in a light emitting direction of the LED chip, and a light reflecting device disposed in the light emitting direction of the lens, the LED chip comprising a chip optical axis, the lens comprising a lens optical axis disposed coincident with the chip optical axis, and a light source setting groove intersecting the lens optical axis, and an exit surface for receiving the outgoing light of the light source setting groove, the light source setting groove is a plane symmetrical structure, in a section along the lens optical axis and parallel to the horizontal plane, the light source setting groove comprising a first contour line, and the exit surface comprising a first exit surface contour line , the first contour line and the first exit surface contour line completing the convergence of the outgoing light of the LED chip toward the lens optical axis, on a section along the lens optical axis and perpendicular to the horizontal plane, the light source setting groove comprising a second contour line, the exit surface including a second exit surface contour line , the second contour line and the second exit surface contour line completing diffusion of the outgoing light of the LED chip away from the lens optical axis, the light reflecting device comprising a reflecting plate perpendicular to a plane formed by the second contour line and the second exit surface contour line.

2 . An LED lamp light distribution system as claimed in claim 1 , wherein the curvature of the first exit surface contour line is greater than the curvature of the first contour line.

3 . An LED lamp light distribution system as claimed in claim 1 , wherein the curvature of the second exit surface contour line is smaller than the curvature of the first contour line.

4 . An LED lamp light distribution system as claimed in claim 1 , wherein on a section along the lens optical axis and parallel to the horizontal plane, the second exit surface contour line comprises two curved line and an intersection line formed by the intersection of the two curved lines and intersecting the lens optical axis, this intersection line is parallel to the horizontal plane.

5 . An LED lamp light distribution system as claimed in claim 1 , wherein the lens takes the plane where the intersection line and the lens optical axis are located as a symmetric plane.

6 . An LED lamp light distribution system as claimed in claim 1 , wherein the lens takes the plane perpendicular to the intersection line and the lens optical axis as a symmetric plane.

7 . An LED lamp light distribution system as claimed in claim 1 , wherein on the second exit surface contour line, the diffusion angle of the second exit surface contour line gradually decreases in the direction away from the intersection line so that the light obtained in the direction away from the intersection line gradually increases.

8 . An illumination system comprises at least one LED lamp light distribution system as described in claim 1 and at least one illuminated surface corresponding to the LED lamp light distribution system respectively, the illuminated surface perpendicular to the reflecting plate and the lens optical axis, on a section along the lens optical axis and parallel to the horizontal plane, the second exit surface contour line comprises two curved line and an intersection line formed by the intersection of the two curved lines and intersecting the lens optical axis, the intersection line is parallel to the horizontal plane, the boundary is the intersection line, and on a section along the lens optical axis and parallel to the horizontal plane, the emergent light of the second exit surface contour line close to the side of the reflecting plate is directed toward the reflecting plate, the reflected light of the reflecting plate overlaps with the light spot formed by the emergent light of the second exit surface contour line away from the side of the reflecting plate on the illuminated surface.

9 . The illumination system as claimed in claim 8 , wherein on the second exit surface contour line, the diffusion angle of the second exit surface contour line gradually decreases in the direction away from the intersection line so that the light obtained in the direction away from the intersection line gradually increases.

10 . The illumination system as claimed in claim 9 , wherein the side with the smaller diffusion angle is directed toward the side of the lens that is farthest from the illuminated surface.

11 . An illumination system as claimed in claim 8 , wherein the curvature of the first exit surface contour line is greater than the curvature of the first contour line.

12 . The illumination system as claimed in claim 11 , wherein on the second exit surface contour line, the diffusion angle of the second exit surface contour line gradually decreases in the direction away from the intersection line so that the light obtained in the direction away from the intersection line gradually increases.

13 . The illumination system as claimed in claim 12 , wherein the side with the smaller diffusion angle is directed toward the side of the lens that is farthest from the illuminated surface.

14 . An illumination system as claimed in claim 8 , wherein the curvature of the second exit surface contour line is smaller than the curvature of the first contour line.

15 . The illumination system as claimed in claim 14 , wherein on the second exit surface contour line, the diffusion angle of the second exit surface contour line gradually decreases in the direction away from the intersection line so that the light obtained in the direction away from the intersection line gradually increases.

16 . The illumination system as claimed in claim 15 , wherein the side with the smaller diffusion angle is directed toward the side of the lens that is farthest from the illuminated surface.

Assignees

• Lin Wanjiong
• Self Electronics Co Ltd
• Self Electronics Usa Corp

Inventors

• Zhang Fawei
• Xu Bozhang
• He Zuping

Classifications

• G02B5/0205

  characterised by the diffusing properties · CPC title

• F21V5/04 Primary

  of lens shape · CPC title

• F21V19/0015

  Fastening arrangements intended to retain light sources · CPC title

• F21V13/04

  the elements being reflectors and refractors {(for vehicle rear lights F21S43/40)} · CPC title

• F21V7/0025

  Combination of two or more reflectors for a single light source (array of reflectors for a cluster of light sources F21V7/0083) · CPC title