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:
Dec. 09, 2008
Filed:
Jul. 11, 2006
Shih Kuei Wang, Ping-Cheng, TW;
Chinmau James Hwang, San Jose, CA (US);
Chen-ho Wu, Los Altos Hills, CA (US);
Shih Kuei Wang, Ping-Cheng, TW;
Chinmau James Hwang, San Jose, CA (US);
Chen-Ho Wu, Los Altos Hills, CA (US);
Leotek Electronics Corporation, Lung-Tan, Tao-Yuam County, TW;
Abstract
A high power LED lamp and method for retrofitting conventional traffic signal lamps. The LED lamp includes a housing, a power supply disposed in the housing, a plurality of LEDs mounted to a substantially planar mounting surface in the housing and electrically connected to the power supply for producing diverging light, and a threaded electrical connector extending from the housing. The method includes replacing a convention incandescent light bulb with the LED lamp, and installing a Fresnel lens inside the traffic signal lamp that collimates and just fills and illuminates the outer lens of the traffic signal lamp.