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. 31, 2004
Filed:
Aug. 28, 2001
Applicant:
Inventor:
Yoshikazu Kataoka, Kyoto, JP;
Assignee:
Dainippon Screen Mfg. Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/47 ;
U.S. Cl.
CPC ...
B41J 2/47 ;
Abstract
A laser beam emitted from a laser light source passes through an illumination lens and is thereafter incident upon a total internal reflection prism. The total internal reflection prism bends the laser beam, which is applied to a Grating Light Valve™. The laser beam divided into a number of beams and modulated by the light valve is incident upon a focusing lens. The normal to the light valve forms an angle &thgr;xz with the optical axis of an illumination optical system including the total internal reflection prism and an illumination lens. The normal to the light valve also forms the angle &thgr;xz with the optical axis of a focusing optical system.