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:
Jul. 12, 2022
Filed:
May. 09, 2020
Applicants:
Hefei Boe Optoelectronics Technology Co., Ltd., Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Inventors:
Assignees:
HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02B 6/005 (2013.01); G02F 1/133524 (2013.01); G02F 1/133605 (2013.01); G02F 1/133607 (2021.01);
Abstract
A collimating device includes at least one microstructure portion. Each microstructure portion includes a bottom surface; a side surface connected to the bottom surface, an angle between the side surface and the bottom surface being an obtuse angle; and a top surface opposite to the bottom surface and connected to the side surface, the top surface being a convex free-form surface.