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. 10, 2012
Filed:
Apr. 20, 2009
Applicant:
Ryuhei Amano, Hirakata, JP;
Inventor:
Ryuhei Amano, Hirakata, JP;
Assignee:
SANYO Electric Co., Ltd., Moriguchi-shi, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01); H04N 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A projection display device has an imager that modulates light from a light source in accordance with an image signal, a projection optical system that enlarges and projects the light modulated by the imager onto a projection plane, a focus adjustment part disposed in the projection optical system, and a displacement part that displaces the imager in a direction vertical to a light axis of the projection optical system, in conjunction with the focus adjustment part.