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.:
Date of Patent:
Aug. 25, 2026
Filed:
Jan. 28, 2025
Applicant:
Enplas Corporation, Saitama, JP;
Inventors:
Yuki Fujii, Saitama, JP;
Hiroaki Kobayashi, Saitama, JP;
Assignee:
Enplas Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133606 (2013.01); G02F 1/133603 (2013.01);
Abstract
A surface light source device of the present invention includes: a plurality of light-emitting devices disposed on an XY plane of an XYZ coordinate that defines an X direction, a Y direction and a Z direction orthogonal to each other; and a light diffusion plate disposed at a distance from the XY plane in the Z direction. Each of the plurality of light-emitting devices includes a light-emitting element and a light flux controlling member configured to control light from the light-emitting element, and Condition 1, Condition 2, and Condition 3-1 or 3-2 are satisfied.