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.

Date of Patent:
Feb. 23, 2010

Filed:

Oct. 24, 2008
Applicants:

Shinji Ono, Nagoya, JP;

Teruaki Nabeno, Nagoya, JP;

Inventors:

Shinji Ono, Nagoya, JP;

Teruaki Nabeno, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 15/00 (2006.01); F21V 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To achieve both uniform illumination and a reduction in the LED light sources, after simplifying illumination control of the light sources. In an illumination unit 130, when arranging LED light sources in a linear arrangement on a light source base plateinstallation thereof will be thinned out in the center, while providing the base plate left and right ends with LED light sourcesLand Land LED light sourcesRand RThe light emitted by the LED light sourceLand the LED light sourceRwill be reflected by a left inside wall faceLS and a right inside wall faceRS respectively, and directed onto the table upper face. The light emitted by the LED light sourceLand the LED light sourceRlying towards the center zone of the light source array where the light source placement has been thinned out will be reflected by a left outside wall faceLS and a right outside wall faceRS respectively, and directed onto the table upper face.


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