Title:
ボイスコイルシャッタ
Document Type and Number:
Japanese Patent JP7246472
Kind Code:
B2
Abstract:
A shutter assembly comprises a base coupled to a photosensor assembly, a flexure device supported by the base, and a shutter arm rotatably coupled to the base via the flexure device. An actuation mechanism is coupled to the shutter arm via the flexure device, and is operable, upon application of an electric field, to rotate the shutter arm from a first position to a second position (or to a third position) to manage light relative to a photosensitive device of the photosensor assembly. Upon rotation of the shutter arm to the second position, the flexure device stores energy such that, upon removal of the electric field, the flexure device releases the stored energy to return the shutter arm to the first position. A keeper magnet can be provided to maintain the shutter arm in the second (actuated) position, so that the electric field can be removed while the keeper magnet maintains a magnetic force to keep the shutter arm in the second position.
Inventors:
Balaban, Scott
Cox, Christopher A.
Bullard, Andrew El.
Cox, Christopher A.
Bullard, Andrew El.
Application Number:
JP2021521750A
Publication Date:
March 27, 2023
Filing Date:
August 22, 2019
Export Citation:
Assignee:
Raytheon Company
International Classes:
G03B9/10; G03B11/00; H04N23/55
Domestic Patent References:
| JP3003488A | ||||
| JP2006284995A | ||||
| JP11338001A | ||||
| JP2008224822A |
Foreign References:
| US20080304021 | ||||
| US8556533 | ||||
| US20200124086 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Osamu Miyazaki
Tadahiko Ito
Osamu Miyazaki
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