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:
Jan. 31, 2023
Filed:
Nov. 22, 2021
Light flux controlling member, light-emitting device, surface light source device and display device
Enplas Corporation, Saitama, JP;
Yuki Fujii, Saitama, JP;
ENPLAS CORPORATION, Saitama, JP;
Abstract
A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that θis smaller than θwhere L is a line connecting a gravity center Gof the light flux controlling member and a center Gof the reflection surface, Lis a line connecting a center Pof a light-emitting surface of the light-emitting element and a point Pon the side surface where light emitted from the center PLis a line along light emitted from the point Pto outside, θis an angle between L and Land θis an angle between Land a line L' that is parallel to L.