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. 04, 2010
Filed:
Dec. 16, 2008
Youichi Iwasaki, Utsunomiya, JP;
Youichi Iwasaki, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical apparatus includes a magnification-varying lens, a controller configured to control an actuator, and to move the magnification-varying lens; and a temperature detector configured to detect a temperature of the optical apparatus, wherein the controller sets a telephoto end position of the magnification-varying lens to a first position when the temperature detected by the temperature detector is a first temperature, and the controller sets the telephoto end position of the magnification-varying lens to a second position closer to a wide-angle side than the first position when the temperature detected by the temperature detector is a second temperature higher than the first temperature.