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. 04, 2013
Filed:
Jun. 13, 2011
Naoto Yumiki, Osaka, JP;
Hideo Onishi, Osaka, JP;
Yoshiharu Araki, Osaka, JP;
Fumio Muramatsu, Kyoto, JP;
Masato Murayama, Osaka, JP;
Naoto Yumiki, Osaka, JP;
Hideo Onishi, Osaka, JP;
Yoshiharu Araki, Osaka, JP;
Fumio Muramatsu, Kyoto, JP;
Masato Murayama, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An interchangeable lens unit comprises a second lens group unit, a focus lens unit, a fourth lens group unit, a zoom ring unit, and a focus motor. The zoom ring unit mechanically transmits operational force inputted to a zoom ring to the second lens group unit and the fourth lens group unit. The focus motor electrically drives the focus lens unit in the Z axis direction with respect to the second lens group unit. When the zoom ring is operated in a state in which no power is being supplied to the focus motor, a gap is always ensured in the Z axis direction between the focus lens unit and the second lens group unit.