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:
Aug. 05, 2003
Filed:
May. 30, 2002
Applicant:
Inventors:
Yasuyuki Miyata, Saitama, JP;
Hitoshi Shimizu, Saitama, JP;
Assignee:
Fuji Photo Film Co., Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 2/128 ; G03B 2/120 ; G02F 1/00 ; F21V 2/126 ; G02B 5/08 ;
U.S. Cl.
CPC ...
G03B 2/128 ; G03B 2/120 ; G02F 1/00 ; F21V 2/126 ; G02B 5/08 ;
Abstract
The thickness of the projector device can be reduced by making the direction of irradiation of a digital micromirror device (DMD) with illuminating light by an illuminating optical system variable depending on whether the projector device is used or not used. As an illuminating optical system is provided rotatably around an optical axis of a projecting optical system, the position of the illuminating optical system can be varied depending on whether the projector device is used or not used, and the overall thickness of the projector device can be thereby reduced.