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:
Jan. 13, 2015
Filed:
Apr. 28, 2010
Fumio Nidaira, Chigasaki, JP;
Yasufumi Nakaaki, Yokohama, JP;
Fumio Nidaira, Chigasaki, JP;
Yasufumi Nakaaki, Yokohama, JP;
JVC Kenwood Corporation, Yokohama-shi, Kanagawa, JP;
Abstract
A light intensity control device includes a fixed opening, an aperture stop partfor controlling a light flux of incident light, a light intensity aperture partfor changing the size of an opening by moving a plurality of aperture blades to limit a light intensity of transmitted light and a ND filterhaving a transparent areaand a light blocking area, which is arranged to be movable between a first light blocking state where the transparent areafaces the fixed openingof the aperture stop partand a second light blocking state where the light blocking areafaces the fixed opening. The moving of the ND filteris carried out when the opening area of the light intensity aperture partis a maximum.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile