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:
Nov. 11, 2008
Filed:
Jul. 16, 2004
Takashi Terai, Kanagawa, JP;
Yusuke Nanjo, Kanagawa, JP;
Kunioki Takahashi, Chiba, JP;
Koji Okajima, Kanagawa, JP;
Asuka Matsumoto, Kanagawa, JP;
Takashi Terai, Kanagawa, JP;
Yusuke Nanjo, Kanagawa, JP;
Kunioki Takahashi, Chiba, JP;
Koji Okajima, Kanagawa, JP;
Asuka Matsumoto, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
When a brightness level of an object is below a predetermined level, an ND filter is removed from an iris opening to fully open the iris opening, and when the brightness level of the object is above a predetermined level, the ND filter is placed to the iris opening to fully close the iris opening. When the ND filter is moved between the fully-opened state and the fully-closed state, an exposure change amount corresponding to an amount offsetting the exposure change amount due to a state transition is generated by controlling iris blades.