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. 05, 2011
Filed:
Apr. 22, 2009
Mei-chun Lin, Taipei Hsien, TW;
Chun-hsiang Huang, Taipei Hsien, TW;
Kuang-wei Lin, Taipei Hsien, TW;
Kuan-ting Chen, Taipei Hsien, TW;
Hsin-tsung Yeh, Taipei Hsien, TW;
Wei-hsiu Chang, Taipei Hsien, TW;
Mei-Chun Lin, Taipei Hsien, TW;
Chun-Hsiang Huang, Taipei Hsien, TW;
Kuang-Wei Lin, Taipei Hsien, TW;
Kuan-Ting Chen, Taipei Hsien, TW;
Hsin-Tsung Yeh, Taipei Hsien, TW;
Wei-Hsiu Chang, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A light guide is a quarter of cylinder in shape and includes a cylindrical emitting surface, an incident surface adjacent to and facing away from the cylindrical emitting surface, and a connecting surface connecting the cylindrical emitting surface and incident surface. The light guide defines five a number of grooves in the incident surface. Each groove is bounded by two surfaces. The inclined angle of the two surface is designed to satisfy a set of conditions to improve light uniformity of the cylindrical emitting surface.