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. 19, 2023
Filed:
Jul. 08, 2022
Applicant:
Stanley Electric Co., Ltd., Tokyo, JP;
Inventors:
Lingwei Goh, Tokyo, JP;
Yoji Oki, Tokyo, JP;
Assignee:
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133615 (2013.01); G02F 1/133603 (2013.01); G02F 1/133607 (2021.01);
Abstract
A side-edge type surface light emitting apparatus includes: a light guide plate having a first light emitting surface, a light distribution controlling surface, and a light incident surface; a light source; an upper prism sheet disposed on the upper side of the light guide plate, the upper prism sheet having multiple first prisms on a lower side and a second light emitting surface on an upper side; and a first lower prism sheet disposed on the lower side of the light guide plate, the first lower prism sheet having multiple second prims on an upper side and a first flat surface on a lower side.