Title:
ACTUATION DEVICE, LENS UNIT AND IMAGING DEVICE
Document Type and Number:
Japanese Patent JP2015105988
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an actuation device, a lens unit and an imaging device that enable suppression of an amount of change of a relative position between a detection member of a position detection sensor and a detected member, and enable suppression of reduction in position detection accuracy of the position detection sensor.SOLUTION: An actuation device 10 according to the present invention comprises: an actuator 3 that includes an actuation shaft 32; a moving member 4 that frictionally engages with the actuation shaft 32 movably in a shaft direction of the actuation shaft 32; a substantially rectangle-shape holding member 2 that holds the actuator 3; and a position detection sensor 53 that includes a hall element 53b detecting a position of the moving member 4 in the shaft direction with respect to the holding member 2 and a magnet 53a. The actuator 3 is configured to be arranged at a first corner part 2a of the holding member 2, and the hall element 53b is configured to be provided between the first corner part 2a in the holding member 2 and a fourth corner part 2d therein.
Inventors:
MORIKAWA TAKUMA
NAMIKAWA TAKETO
NAMIKAWA TAKETO
Application Number:
JP2013246983A
Publication Date:
June 08, 2015
Filing Date:
November 29, 2013
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
G02B7/04; H04N5/225; H04N5/232
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Satoshi Sakurai
Masataka Otani
Satoshi Sakurai
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