Title:
SHUTTER DEVICE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2023005849
Kind Code:
A
Abstract:
To increase the degree of freedom related to adjustment of travel curve and curtain speed in a shutter device.SOLUTION: A shutter device has: a blade unit (2); a driving member (11) that is attached to the blade unit and drives the blade unit; deceleration means (15, 17, 21) that decelerate power from a motor (19); first connection means (15) that is connected with the deceleration means; second connection means (13) that is attached to the driving member at one end and attached to the first connection means at the other end; first position detection means (23) that detects passing through a predetermined position on a movement locus of the driving member or the first connection means; and second position detection means (25) that detects a relative difference from a result of detection performed by the first position detection means. The drive of the motor is controlled according to results of detection performed by the first detection means and second detection means.SELECTED DRAWING: Figure 1
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Inventors:
FUKUOKA TATSUNARI
Application Number:
JP2021108061A
Publication Date:
January 18, 2023
Filing Date:
June 29, 2021
Export Citation:
Assignee:
CANON KK
International Classes:
G03B9/36; H04N23/55
Attorney, Agent or Firm:
Takuma Abe
Sougo Kuroiwa
Sougo Kuroiwa