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:
Apr. 25, 2006
Filed:
Aug. 24, 2004
Hideki Nakamura, Oume, JP;
Hideki Nakamura, Oume, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
A projection display system includes a reflection display device, an optical member for projecting an illumination beam toward the reflection display device from a direction inclined relative to a front surface direction of the reflection display device, an optical member for projecting an image beam projected from the reflection display device a onto a projection surface, and a relay lens disposed on a front surface side of the reflection display device. The relay lens corrects the illumination beam into a parallel beam that enters the reflection display device, and causes the image beam from the reflection display device to enter the optical member for projecting the image beam, and causes a part of the illumination beam that is surface reflected on a surface thereof facing the optical member to be reflected in a direction other than the direction in which the image beam is projected by the projection system optical member.