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:
Jul. 21, 2020
Filed:
Oct. 26, 2015
Sony Corporation, Tokyo, JP;
Toshiro Hayashi, Chiba, JP;
Takahiro Kobayashi, Tokyo, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
An effect that drive of one of a first magnetic driving unit and a second magnetic driving unit prevents a movement of the other magnetic driving unit is not generated to appropriately control movements of first opening and closing blades and second opening and closing blades. A blade opening and closing device includes a base body which includes an opening for transmitting light, a first magnetic driving unit which includes a first magnet and a first coil, a second magnetic driving unit which includes a second magnet and a second coil, first opening and closing blades which are moved by the first magnetic driving unit relative to the base body and to open and close the opening, and second opening and closing blades which are moved by the second magnetic driving unit relative to the base body and to open and close the opening. A magnetic flux direction of the first magnetic driving unit is opposite to a magnetic flux direction of the second magnetic driving unit.