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 8157398 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2012

Filed:

Mar. 25, 2010
Applicant:

Kyo Yamamoto, Higashimurayama, JP;

Inventor:

Kyo Yamamoto, Higashimurayama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/08 (2006.01); F21V 9/16 (2006.01); G03B 21/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A projector including a light source unit, a display device and a projector control means, wherein the light source unit includes a fluorescent plateincluding fluorescent material layersdisposed adjacent for emitting light in predetermined wavelength ranges by absorbing light, a diffusion plateincluding a diffusion layerdisposed adjacent to the fluorescent material layersfor emitting light in a diffusing fashion, a light source for shining light on the layers, a driving device for rotating the plates, and a light cut-off platehaving a light cut-off portion, the light cut-off platecapable of rotating together with the platesand movable so that the light cut-off portioncovers an area on the diffusion platewhere light is to be shone by the locked state being released when the diffusion platecomes off.


Find Patent Forward Citations

Yamamoto, Kyo. (2012). Light source unit utilizing laser for light source and projector (U.S. Patent No. 8157398). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8157398

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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