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.:

US 6843566 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 18, 2005

Filed:

Feb. 27, 2003
Applicant:

Hisayuki Mihara, Kodama-gun, JP;

Inventor:

Hisayuki Mihara, Kodama-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2126 ; G03B 2100 ; G03B 2120 ;
U.S. Cl.
CPC ...
Abstract

A light device has a plurality of light sources, and laser beam sources are arranged near a discharge bulb so that the laser beam can be overlapped with illuminating light from the discharge bulb. By doing so, the illuminating light is irradiated as overlapped illuminating light reinforcing red component, so that color rendering and luminance can be improved.


Find Patent Forward Citations

Mihara, Hisayuki. (2005). Lighting device and projection type display apparatus using the same (U.S. Patent No. 6843566). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6843566

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