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:
Apr. 08, 2008
Filed:
Sep. 09, 2005
Wei-kuo Han, Hsinchu, TW;
Ra-min Tain, Jhonghe, TW;
Chin-lung Chen, Hsinchu, TW;
Shyi-ching Liau, Jhudong Township, Hsinchu County, TW;
Wei-Kuo Han, Hsinchu, TW;
Ra-Min Tain, Jhonghe, TW;
Chin-Lung Chen, Hsinchu, TW;
Shyi-Ching Liau, Jhudong Township, Hsinchu County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A structure of illuminating unit includes a point-like light-emitting device, having an optical axis. An initial-stage conoid-like reflective surface has a convergent opening end and a divergent opening end. The point-like light-emitting device is located at the convergent opening end and the optical axis is toward the divergent end for emitting light. The initial-stage conoid-like reflective surface and the optical axis include an initial-stage included angle. A final-stage conoid-like reflective surface has a convergent opening end and a divergent opening end. The convergent opening end of the final-stage conoid-like reflective surface is coupled with the divergent opening end of the initial-stage conoid-like reflective surface. The final-stage conoid-like reflective surface and the optical axis include a final-stage included angle. The initial-stage included angle is larger than the final-stage included angle.