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:
Sep. 20, 2016
Filed:
Jun. 05, 2013
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Suguru Matsumura, Okayama, JP;
Yoshihiro Kawasaki, Okayama, JP;
Kazuhiro Hayashi, Okayama, JP;
Akihisa Yamada, Osaka, JP;
Masahiko Hirata, Nara, JP;
Keiichi Zaitsu, Osaka, JP;
Abstract
A surface light source apparatus includes an end face for taking in light emitted from a light source and a main surface for emitting the light. The surface light source apparatus further includes a plurality of structure bodies formed on an opposed surface disposed opposite to the main surface in the surface light source apparatus, each of which has a reflecting surface facing the point light source. Each structure body has a cut-off portion which removes a portion on the reflecting surface in a longitudinal direction of the structure body and in a height direction.