Image blur correction apparatus

Details Image blur correction apparatus Image blur correction apparatus

2011-03-15

2011-03-15

Blackman, Rochelle-Ann J (Department: 2862)

Photography

Camera shake sensing

Having stabilization system

C348S208700, C348S208110, C359S557000

Reexamination Certificate

active

07907837

ABSTRACT:
In an image blur correction apparatus, rotation of a correction lens about an optical axis is regulated without special mechanism or drive unit. When displacing a third lens unit in a pitch and yaw directions, forces Bp, By driving a shift base are generated in the respective directions by Lorentz force, to generate forces Cp, Cy, Dp, Dy returning a magnet to an original position by attraction force. By, Cy and Bp, Dp, respectively, are exerted on the same axes, whereas Cp, Dy are not in the same axes as those of Bp, By, respectively, so that a rotational moment for the shift base is generated and the shift base is stabilized at a first angle. Since the first angle is smaller than a second angle regulated by a restriction portion for a shift movement frame, the shift base does not abut the shift movement frame to deteriorate image stabilization.

REFERENCES:
patent: 2005/0254806 (2005-11-01), Noguchi
patent: 6-242485 (1994-09-01), None
patent: 3229899 (2001-09-01), None

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