Blur correction device, lens barrel and camera

Japanese Patent JP6299188

B2

PROBLEM TO BE SOLVED: To provide a tremor correction device that allows for a reference value correction excellent in accuracy.SOLUTION: According to the present invention, a tremor correction device 100 correcting tremors of optical members 1B and 6 comprises: an angular velocity sensor 12 that detects an angular velocity of the optical members 1B and 6; a reference value computation unit 34 that computes a reference value of an output signal of the angular velocity sensor 12; an image pickup element 3 that generates an image signal for each of continuous frames on the basis of input subject image light; a motion vector computation unit 41 that computes a motion vector of an image between the frames on the basis of the image signal; a reference value correction unit 42 that corrects the reference value on the basis of the motion vector; and a target position computation unit 36 that computes a target position of an optical element to be moved for causing the optical members 1B and 6 to perform a tremor correction on the basis of the output signal of the angular velocity sensor 12 and the post-corrected reference value. The target position computation unit 36 is configured to, during an exposure of the image pickup element 3, compute the target position on the basis of a post-corrected reference value in a pre-exposure.

Sankemoto Hideshi

JP2013248630A

March 28, 2018

November 29, 2013

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NIKON CORPORATION

G03B5/00; H04N5/225; H04N5/232

JP2007266771A
JP10148858A
JP2004226692A
JP2008236289A
JP4360147B2
JP2005151542A
JP9080500A

US5497191

Masao Sekiguchi
Takamasa Nakano

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