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:
Apr. 25, 2017

Filed:

May. 05, 2014
Applicants:

Lite-on Electronics (Guangzhou) Limited, Guangzhou, CN;

Lite-on Technology Corp., Taipei, TW;

Inventors:

Jun-Feng Lin, Taipei, TW;

Wei-Chung Cheng, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 3/00 (2006.01); H04N 1/028 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0096 (2013.01); G02B 3/0056 (2013.01); G02B 6/001 (2013.01); H04N 1/02835 (2013.01); H04N 1/02895 (2013.01); G02B 6/0006 (2013.01); G02B 6/0038 (2013.01); G02B 6/0055 (2013.01);
Abstract

A linear light source emits light beams for illuminating a target. The linear light source includes a light guide, and a light-emitting unit. The light guide has a bottom surface, first and second reflecting surfaces extending from opposite side edges of the bottom surface, and a light converging convex surface extending between the first and second reflecting surfaces, curved outward, and having multiple radii of curvature. The light-emitting unit emits light beams that exit through the light converging convex surface to converge at multiple points distributed at distinct positions in a direction perpendicular to a surface of the target, such that the target to be disposed within a range defined by the multiple points is evenly illuminated.


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