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:
Jun. 28, 2011
Filed:
Oct. 04, 2007
Kiyoshi Harada, Kanagawa, JP;
Shinji Takemoto, Kanagawa, JP;
Masahito Kikuchi, Tokyo, JP;
Sony Corporation, , JP;
Abstract
It is intended to carry out a focusing operation suitably in each case of automatic focusing and manual focus adjustment. Therefore, in the present invention, there is provided a first focus ringmovable between a first position and a second position on an optical axis. Further, a first rotation-angle detection unit detecting a rotation amount of the first focus ringat the first position, a second focus ringcoupled to the first focus ringwhen the first focus ringis at the first position, and a second rotation-angle detection unit detecting a rotation amount of the second focus ringare provided. When the first focus ringis at the first position, a focus lens is driven based on the rotation amount detected by the first rotation-angle detection unit, and when the first focus ringis at the second position, the focus lens is driven based on the rotation amount detected by the second rotation-angle detection unit.