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:
Oct. 16, 2012
Filed:
Feb. 01, 2010
Osamu Fujimaki, Matsumoto, JP;
Osamu Fujimaki, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes: a light valve configured to modulate light emitted from a light source according to image information to form image light; a support and drive unit configured to support a projection lens for projecting the image light formed by the light valve such that the projection lens can be replaced, and shift a mounted lens as the supported projection lens in a first direction within a plane perpendicular to a system optical axis of the entire projector; and a control unit configured to determine information concerning an allowable range of the shift of the mounted lens in the first direction, and control the operation of the support and drive unit such that the shift of the mounted lens lies within the determined allowable range.