Title:
SHAKE CORRECTION DEVICE AND OBSERVATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/196351
Kind Code:
A1
Abstract:
Provided are a shake correction device and an observation device which are capable of appropriately correcting image shake when a plurality of types of oscillation having different frequency bands are simultaneously imparted. A first correction signal creation unit (78) splits an angular velocity signal of a low-to-ultra low frequency band from an angular velocity signal of an x-axis angular velocity sensor (36), and outputs a first correction signal which is amplified on the basis of a signal output characteristic of the angular velocity sensor. A second correction signal creation unit (79) splits an angular velocity signal of a low-to-high frequency band from the angular velocity signal, and outputs a second correction signal which is amplified on the basis of the signal output characteristic of the angular velocity sensor. An addition computation unit (98) creates a composite correction signal wherein the first correction signal and the second correction signal are composited. A drive computation unit (99) creates a drive signal on the basis of the composite correction signal. A driver (74) drives an x-axis actuator (38) on the basis of the drive signal, displacing a corrective optical element, and correcting the image shake.
Inventors:
TAKANO SHIGEYUKI (JP)
ARAI MASAKI (JP)
YAMAGUCHI NAOKI (JP)
KABURAGI HIROMITSU (JP)
ARAI MASAKI (JP)
YAMAGUCHI NAOKI (JP)
KABURAGI HIROMITSU (JP)
Application Number:
PCT/JP2014/063306
Publication Date:
December 11, 2014
Filing Date:
May 20, 2014
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B23/00; G03B5/00; H04N5/232
Foreign References:
JP2004117418A | 2004-04-15 | |||
JP2011158535A | 2011-08-18 | |||
JP2000039640A | 2000-02-08 | |||
JP2010169817A | 2010-08-05 | |||
JP2007158772A | 2007-06-21 |
Attorney, Agent or Firm:
ODAHARA Shuichi et al. (JP)
Shuichi Odawara (JP)
Shuichi Odawara (JP)
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