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:
Jun. 29, 2010
Filed:
Mar. 20, 2006
Tomokazu Masubuchi, Osaka, JP;
Atsushi Matsuura, Sakai, JP;
Satoshi Onishi, Amagasaki, JP;
Kohei Watasru, Sakai, JP;
Takashi Ohta, Sakai, JP;
Tomokazu Masubuchi, Osaka, JP;
Atsushi Matsuura, Sakai, JP;
Satoshi Onishi, Amagasaki, JP;
Kohei Watasru, Sakai, JP;
Takashi Ohta, Sakai, JP;
Konica Minolta Opto, Inc., Hachioji-shi, JP;
Abstract
A projection type image display apparatus has: an illumination optical system generating illumination light; a projection optical system projecting an image light onto a screen; a digital micromirror device (DMD) modulating the illumination light so as to form the image light; and a reflection mirror arranged in a position opposite to an optical path of the illumination light entering the DMD. The reflection mirror reflects an off-light reflected by the DMD in an 'OFF' state in a direction separated from a projection light reflected by the DMD in an 'ON' state.