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.

Patent No.:

US 8227969 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 24, 2012

Filed:

Apr. 27, 2010
Applicants:

Masao Yamaguchi, Saitama, JP;

Yasuyuki Fukuda, Saitama, JP;

Inventors:

Masao Yamaguchi, Saitama, JP;

Yasuyuki Fukuda, Saitama, JP;

Assignee:

Enplas Corporation, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/16 (2006.01); H01J 61/40 (2006.01); H01K 1/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light emitting apparatus can prevent unevenness in illuminance from being produced. This light emitting apparatushas: light emitting elementsthat emit light; and light flux controlling membersthat control the traveling directions of light emitted from light emitting elements, and a plurality of grid convex partsare formed in back surface(i.e. lens bottom surface) of light flux controlling member. Grid convex partsvary the incident angles of light incident on back surfaceof light flux controlling member. Therefore, light incident from back surfaceis scattered without being concentrated, and is emitted from light flux controlling member


Find Patent Forward Citations

Yamaguchi, Masao. (2012). Light emitting apparatus, surface light source apparatus and display apparatus (U.S. Patent No. 8227969). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8227969

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