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. 01, 2015
Filed:
Jul. 15, 2013
Konica Minolta, Inc., Chiyoda-ku, JP;
Masahiko Tanaka, Toyokawa, JP;
KONICA MINOLTA, INC., Chiyoda-Ku, Tokyo, JP;
Abstract
A light guide with a bar-like shape that extends in a predetermined direction, having: a reflective surface that reflects light inside the light guide within the light guide; a first output surface that causes light inside the light guide to exit the light guide, the first output surface, when viewed in plan from the predetermined direction, constituting a first are of an ellipse that has a first focal point, along with a second focal point located on the reflective surface, and the first are being closer to the first focal point than to the second focal point; and a second output surface that causes light inside the light guide to exit the light guide, the second output surface, when viewed in plan from the predetermined direction, constituting a second arc of an ellipse that has a third focal point, along with a fourth focal point coinciding with the second focal point, and the second arc being closer to the third focal point than to the fourth focal point.