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. 14, 2017
Filed:
Feb. 20, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hiroshi Ohno, Yokohama, JP;
Mitsuaki Kato, Kawasaki, JP;
Tomonao Takamatsu, Kawasaki, JP;
Yuichiro Yamamoto, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
A light guiding body that guides light includes, a light guiding portion, and an introducing portion including a plane of incidence and a curvature surface connected to the plane of incidence to guide the light to the light guiding portion by being connected to the light guiding portion, wherein an angle θformed by a line segment connecting a first point on the plane of incidence and a second point on the curvature surface and a normal of the curvature surface at the second point satisfies θ≧sin(1/n), where n is an index of refraction of the light guiding body.