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. 07, 2015
Filed:
Dec. 27, 2011
Yasumasa Sawai, Yamatotakada, JP;
Yasumasa Sawai, Yamatotakada, JP;
Konica Minolta CPTO, Inc., Tokyo, JP;
Abstract
Assuming that a normal line of an image display surface of a DMD is a normal line Ax of the image display surface, that a direction in which a light beam specularly reflected by a mirror is outputted is a specular reflection direction R, and that an angle that the specular reflection direction R forms with respect to the normal line Ax of the image display surface is denoted by γ, an image projection apparatus satisfies the following conditional expression: β≧2·γ−β≧β, where βand βrepresent a diffraction angle of an odd-order diffracted light, and βrepresents a diffraction angle of an even-order diffracted light.