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:
May. 23, 2017
Filed:
Sep. 09, 2015
Citizen Electronics Co., Ltd., Yamanashi-ken, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Junji Miyashita, Yamanashi-ken, JP;
CITIZEN ELECTRONICS CO., LTD., Yamanashi-Ken, JP;
CITIZEN WATCH CO., LTD., Tokyo, JP;
Abstract
In a first aspect of the present inventive subject matter, a planar light guide device includes light-emitting elements arranged on a surface of a substrate to be an alignment on a center line between two long edges of the surface of the substrate; and a light-transmitting resin including a region in which optical elements are arranged at a first side and a second side of the light-transmitting resin, and the optical element includes a first surface and a second surface that is smaller in area than the first surface, and the first surface of the optical element is inclined with an angle that is in a range of one to 40 degrees with respect to a surface that is perpendicular to the mounting surface of the substrate with an edge of the surface in parallel with the center line between the two long edges of the surface of the substrate.