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Patent Searching and Data


Title:
IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2019035819
Kind Code:
A
Abstract:
To provide an imaging apparatus capable of making a frame speed faster by shortening the drive time of a mirror, when the mirror is driven by a lead screw.SOLUTION: The imaging apparatus includes a mirror 202 which is rotated between an up position and a down position by the straight movement of a slider 264 which has a follower 266 engaged with the lead groove of a lead screw 262 and is moved straight by the rotation of the lead screw 262 by a motor 260 and control means 13 which can switch a first drive mode in which current application to the coil of the motor 260 is switched according to a time and a second drive mode in which the rotational phase of the motor 260 is detected and the current application to the coil of the motor 260 is switched. The control means 13 controls the motor 260, so that when the follower 266 is engaged with a second lead groove 262c or a third lead groove 262d, the follower 266 is moved to a position close to a first lead groove 262b in the first drive mode and when the follower 266 is engaged with the first lead groove 262b, the follower 266 is moved in the second drive mode.SELECTED DRAWING: Figure 14

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Inventors:
SUDO KAORU
SUGIHARA HIROYASU
Application Number:
JP2017156004A
Publication Date:
March 07, 2019
Filing Date:
August 10, 2017
Export Citation:
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Assignee:
CANON KK
International Classes:
G03B19/12; H02P8/14; H04N5/225; H04N5/232
Attorney, Agent or Firm:
Another role Shigehisa