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:
Nov. 05, 2019

Filed:

May. 30, 2019
Applicant:

Nichia Corporation, Anan-shi, JP;

Inventors:

Kazuhiro Kamada, Tokushima, JP;

Yusaku Achi, Tokushima, JP;

Tomohisa Kishimoto, Anan, JP;

Satoshi Yoshinaga, Yoshinogawa, JP;

Assignee:

NICHIA CORPORATION, Anan-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02F 3/00 (2006.01); G02B 5/00 (2006.01); G02B 3/00 (2006.01); F21V 7/00 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133611 (2013.01); F21V 7/0083 (2013.01); G02B 3/0062 (2013.01); G02B 5/045 (2013.01); G02F 1/133603 (2013.01); G02F 1/133606 (2013.01); G02F 2001/133607 (2013.01);
Abstract

A base has a base surface. Light emitting elements are disposed on the base surface along an X-axis with an X pitch and along the Y axis with a Y pitch to form a matrix. The X pitch is smaller than the Y pitch. Lenses has a batwing illumination distribution. Each of the lenses covers each of the light emitting elements. A first lenticular lens sheet is provided on the base such that a first lenticular lens sheet lower surface is opposite to the base surface. A second lenticular lens sheet is provided on the first lenticular lens sheet such that a second lenticular lens sheet lower surface is opposite to a first lenticular lens sheet upper surface. A third lenticular lens sheet is provided on the second lenticular lens sheet such that a third lenticular lens sheet lower surface is opposite to a second lenticular lens sheet upper surface.


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