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:
Oct. 18, 2011
Filed:
Aug. 03, 2010
Chun-yu Ko, Kaohsiung, TW;
Chien-liang LU, Tainan, TW;
Chun-Yu Ko, Kaohsiung, TW;
Chien-Liang Lu, Tainan, TW;
Chi Lin Technology Co., Ltd., Tainan County, TW;
Abstract
A light guiding film has a film body and a micro-structured portion. The film body has a first side, a second side and a reference horizontal level vertical to the second side. The micro-structured portion is set on the second side and has a plurality of V-shaped grooves, and each one of the V-shaped grooves has a first sub-face and a second sub-face. The first sub-face has a first included angle between 16° and 22° with respect to said reference horizontal level, and the second sub-face has a second included angle between 8° and 17° with respect to said reference horizontal level. When an incident light beam injects downwardly on said micro-structured portion in a predetermined incident angle range, a predetermined percentage of said incident light beam emit an emissive light beam projected out in an included angle range between 0° and 90° with respect to said reference horizontal level.