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. 28, 2009
Filed:
Jun. 28, 2007
Teng-chao Hou, Hsinchu, TW;
Tzeng-ke Shiau, Hsinchu, TW;
Wen-bin Chou, Hsinchu, TW;
Ching-shiang LI, Hsinchu, TW;
Teng-Chao Hou, Hsinchu, TW;
Tzeng-Ke Shiau, Hsinchu, TW;
Wen-Bin Chou, Hsinchu, TW;
Ching-Shiang Li, Hsinchu, TW;
Coretronic Corporation, Hsinchu, TW;
Abstract
A direct type illuminating device includes a light source unit, a reflector plate, a diffuser plate, and a lens module. The light source unit provides source light beams. The reflector plate and the diffuser plate are spaced at an interval from each other, and the light source unit is interposed between the reflector plate and the diffuser plate. The lens module surrounds the light source unit such that the lens module is interposed between the light source unit and the reflector and diffuser plates. An outer curved surface of the lens module has a radius of curvature different from a radius of curvature of an outer curved surface of the light source unit such that the source light beams provided by the light source unit are refracted by the lens module to result in change of traveling directions of the source light beams.