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:
Apr. 10, 2012
Filed:
Nov. 25, 2008
Ying Bao Yang, Kanagawa, JP;
Masaru Higuchi, Tokyo, JP;
Tsutomu Tanaka, Kanagawa, JP;
Kazunori Yamaguchi, Kanagawa, JP;
Masumitsu Ino, Kanagawa, JP;
Ying Bao Yang, Kanagawa, JP;
Masaru Higuchi, Tokyo, JP;
Tsutomu Tanaka, Kanagawa, JP;
Kazunori Yamaguchi, Kanagawa, JP;
Masumitsu Ino, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A surface emission apparatus includes a first light source for emitting invisible light rays; a second light source for emitting visible light rays; a light guide having a light entrance surface for entering therethrough into the light guide the invisible light rays emitted from the first light source and the visible light rays emitted from the second light source, and a light exit surface for emitting the invisible light rays and the visible light rays therethrough out of the light guide; and a plurality of optical devices disposed on a surface of the light guide which confronts the light exit surface, for scattering more of the invisible light rays than the visible light rays.