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:
May. 03, 2022
Filed:
Nov. 10, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Junichi Tanaka, Tochigi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A projection type display apparatus which includes an optical system having an adjuster configured to adjust a field curvature of an in-focus plane of a projection image includes at least one processor or circuit configured to execute a plurality of tasks including an acquisition task configured to acquire position information of a predetermined position in an imaging area of an image generator and an optical axis of the optical system, and a control task configured to acquire an adjusting amount of a tilt unit configured to tilt the in-focus plane, using information from the acquisition task, a field curvature amount of the in-focus plane based on a position of the adjuster, and information on a projection target.