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:
Oct. 05, 2010
Filed:
Jan. 16, 2008
Applicant:
Hideo Ohkuma, Tokyo, JP;
Inventor:
Hideo Ohkuma, Tokyo, JP;
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B 9/08 (2006.01); G03B 9/20 (2006.01); G03B 9/26 (2006.01); G02B 26/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is a light amount adjustment apparatus, including: a shutter blade and a filter blade each configured to operate in a predetermined direction to adjust the amount of light transmitted through a lens group; a first magnet configured to drive the shutter blade; a first core and a first coil; a second magnet configured to drive the filter blade; and a second core and a second coil. The filter blade has a control portion for controlling and adjusts the amount of light transmitted through the lens group. The filter blade has at least one hole or one cutaway portion formed at a portion of the filter blade other than the control portion.