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:
Aug. 15, 2017
Filed:
Jul. 29, 2014
Boe Technology Group Co., Ltd., Beijing, CN;
Boe Optical Science and Technology Co., Ltd., Suzhou, CN;
Hongyun Wang, Beijing, CN;
Feng Zhou, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
BOE OPTICAL SCIENCE AND TECHNOLOGY CO., LTD., Suzhou, CN;
Abstract
The present invention discloses a light guide and a lighting device with parallel light source. The light guide comprises a body with a light incident side and a light emergent side. The body comprises: a light incident surface; light emergent surfaces; and a light guide surface group provided with a plurality of light guide surfaces and used for guiding at least a part of the rays of light guided into the body via the light incident surface by total reflection, and determine out-emitting positions of the part of the light rays guided by total reflection by the light guide surface group, on the light emergent surfaces, so that the body is formed with bright areas with guided-out rays of light and dark areas without guided-out rays of light on the light emergent surfaces.