The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 13, 2025

Filed:

Sep. 04, 2024
Applicants:

Shanghai Sansi Electronic Engineering Co. Ltd., Shanghai, CN;

Shanghai Sansi Technology Co. Ltd., Shanghai, CN;

Jiashan Sansi Optoelectronic Technology Co. Ltd., Jiaxing, CN;

Pujiang Sansi Optoelectronic Technology Co. Ltd., Jinhua, CN;

Zhejiang Puzhao Photoelectric Technology Co.,ltd., Jinhua, CN;

Inventors:

Guoli Zhu, Shanghai, CN;

Min Han, Shanghai, CN;

Defeng Ni, Shanghai, CN;

Congyi Lin, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/00 (2006.01); F21S 6/00 (2006.01); F21V 17/10 (2006.01); F21V 21/26 (2006.01); F21V 23/00 (2015.01); F21V 29/70 (2015.01); F21V 29/89 (2015.01);
U.S. Cl.
CPC ...
F21V 7/0025 (2013.01); F21S 6/003 (2013.01); F21V 17/10 (2013.01); F21V 21/26 (2013.01); F21V 23/008 (2013.01); F21V 29/70 (2015.01); F21V 29/89 (2015.01);
Abstract

A reflective illumination structure is provided. It includes a heat dissipation base, a lighting unit disposed at a top of the heat dissipation base, and a reflective lampshade enclosing the lighting unit. An inner wall of the reflective lampshade is provided with a specular reflection arc surface disposed at a bottom end of the inner wall of the reflective lampshade and a diffuse reflection arc surface disposed at a top end of the inner wall of the reflective lampshade. A part of light emitted from the lighting unit is directly emitted to the diffuse reflection arc surface, and another part of the light is reflected by the specular reflection arc surface and then is emitted to the diffuse reflection arc surface. The light reflected by the diffuse reflection arc surface is emitted through a bottom of the reflective lampshade and forms a uniform rectangular light spot.


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