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:
Feb. 15, 2022
Filed:
Sep. 05, 2018
Enplas Corporation, Saitama, JP;
Toshihiko Mochida, Saitama, JP;
Hiroaki Okuyama, Saitama, JP;
Enplas Corporation, Saitama, JP;
Abstract
This light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incident surface, an emission surface, a back surface, a protruding portion and a scattering portion. In a cross section including a central axis, an angle formed by two beams, which are emitted from the light emitting device and have a maximum luminous intensity, is 150° or more. In a cross section including a central axis, predetermined light is made incident at an incident angle of 60° and an average angle, which is formed by, among the light reflected by the scattering portion, a light ray having a maximum light amount and a light ray having a light amount of 50% of the maximum light amount, is 5° or more.