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:
Jun. 10, 2008
Filed:
Oct. 27, 2005
Applicants:
Mitsuhiro Wada, Osaka, JP;
Tomohisa Tajiri, Osaka, JP;
Inventors:
Mitsuhiro Wada, Osaka, JP;
Tomohisa Tajiri, Osaka, JP;
Assignees:
Quanta Display Inc., , TW;
Quanta Display Japan Inc., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 4/00 (2006.01); G09F 13/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lighting device including a frame, at least one U-shaped fluorescent tube, a diffusing plate, and a prism sheet having a plurality of prisms and being positioned between the fluorescent tube and the diffusing plate with the prism apices aligned in the axial direction of the fluorescent tube. The prism sheet covers the bent portion of the fluorescent tube to eliminate uneven luminance.