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:
Mar. 03, 2015
Filed:
Aug. 24, 2012
Chih-peng Wang, Taipei, TW;
Huang-chang Chen, Taipei, TW;
Kuo-hsuan Hsu, Taipei, TW;
Jui-wen Lee, Taipei, TW;
Chih-Peng Wang, Taipei, TW;
Huang-Chang Chen, Taipei, TW;
Kuo-Hsuan Hsu, Taipei, TW;
Jui-Wen Lee, Taipei, TW;
E-Pin Optical Industry Co., Ltd., Taipei, TW;
Abstract
The present invention discloses an LED lens and a light source device using the same. The light source device includes the LED lens and a LED. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a recession portion disposed at the central thereof and a convex portion connected to the recession portion. The light incident surface is a concave surface and comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface; the second optically active area is connected to the first optically active area and the bottom surface. At the junction between the first optically active area and the second optically active area, it is an optical path inversion point that is disposed satisfying specific condition.