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:
Oct. 24, 2017
Filed:
Aug. 20, 2015
Keio University, Tokyo, JP;
Nittoh Inc., Suwa-shi, Nagano, JP;
Yasuhiro Koike, Yokohama, JP;
Akihiro Tagaya, Yokohama, JP;
Keiichi Mochizuki, Suwa, JP;
Takashi Iwamoto, Suwa, JP;
Kazumasa Osumi, Suwa, JP;
KEIO UNIVERSITY, , JP;
NITTOH INC., , JP;
Abstract
Provided is an illumination module capable of preventing a light exit surface from being darker along peripheral edge portions as though having borders. An illumination module () includes: a light guiding plate (), which has an end surface () and a first principal surface (); a light source () configured to emit light that enters the end surface (); and a diffusion plate (), which has alight incident surface () and a light exit surface (). The diffusion plate () includes a protruding part (), which protrudes toward the light guiding plate () side and the light source (), which is positioned so as to face a peripheral edge portion () on the end surface () side of the light guiding plate (), and which has a light incident surface () into which light exiting the peripheral edge portion () enters.