Apparatus for inspecting blur correction camera, blur correction

Details Apparatus for inspecting blur correction camera, blur correction Apparatus for inspecting blur correction camera, blur correction

1997-02-25

1998-09-01

Lee, Eddie C.

Photography

Camera shake sensing

With accelerometer

396 55, G03B 708

Patent

active

058024034

ABSTRACT:
A blur correction camera includes an optical axis changing unit to change an optical axis of a photographing optical system to correct a blur generated by vibration, a displacement detecting unit to detect displacement of the photographing optical system by the optical axis changing unit, a calculation unit to calculate a displacement velocity of the photographing optical system on the basis of a detection result from the displacement detecting unit, a centering unit to drive the optical axis of the photographing optical system to a central position based on the displacement detected by the displacement detecting unit, and a maximum displacement velocity detecting unit to detect a maximum displacement velocity upon movement of the photographing optical system by the centering unit. Whether a blur correction function is normal is discriminated on the basis of a detection result from the maximum displacement velocity detecting unit.

REFERENCES:
patent: 5155520 (1992-10-01), Nagasaki et al.
patent: 5192964 (1993-03-01), Shinohara et al.
patent: 5285313 (1994-02-01), Kobayashi et al.
patent: 5389997 (1995-02-01), Ohishi
patent: 5463443 (1995-10-01), Tanaka et al.
patent: 5479236 (1995-12-01), Tanaka

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