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:
Dec. 04, 2018
Filed:
Feb. 13, 2015
Seiko Epson Corporation, Tokyo, JP;
Yoshitaka Nakashin, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A projector includes a projection optical system adapted to project an image on a screen, a lens drive section adapted to perform a focus adjustment in accordance with an operation, a shooting section adapted to shoot the screen, an evaluation value calculation section adapted to calculate an evaluation value used to evaluate contrast of a shot image of the shooting section, and a display control section adapted to make the projection lens project an image, which corresponds to a difference between the evaluation value calculated by the evaluation value calculation section after the focus adjustment and a maximum value of the evaluation values having been calculated by the evaluation value calculation section before the focus adjustment, on the screen in a case in which the lens drive section has performed the focus adjustment in accordance with the operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile