Camera capable of correcting camera-shake
AssigneeMinolta Camera Kabushiki Kaisha
InventorsMasataka Hamada, Hisayuki Masumoto, Takashi Okada, Hiroshi Ootsuka
Life of this patent
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Abstract
A camera comprises an angular velocity sensor for detecting camera-shake. The angular velocity sensor takes a certain time to be stabilized after its operation is started. When correction of camera-shake is required during the certain period, it is displayed that correction of camera-shake is not possible. As a result, a photographer using the camera with the camera-shake detection sensor refrains from photographing when correction of camera-shake is not possible.
Claims12
A camera system having a camera body and a lens interchangeably provided to said camera body,
- said camera body comprising:
- a) detection means for detecting camera-shake;
- b) first calculation means responsive to output of said detection means for calculating an amount of camera-shake on a film plane;
- and
- c) data output means for outputting the amount of camera-shake calculated by said first calculation means;
- and
- said lens comprising:
- d) an optical system operable to correct camera-shake and movable on a plane perpendicular to optical axis of said lens;
- e) driving means for driving said camera-shake correcting optical system;
- f) data input means for inputting the amount of camera-shake from said data output means;
- g) coefficient producing means for producing a coefficient converting the amount of camera-shake into amount of drive of said camera-shake correcting optical system, the coefficient being specific to said optical system;
- and
- h) second calculation means for calculating the amount of drive to be driven by said driving means based on the coefficient produced by said producing means and the amount of camera-shake inputted to said data inputting means.
A camera comprising:
- a) detection means for detecting camera-shake;
- b) first calculation means responsive to output of said detection means for calculating an amount of camera-shake on a film plane;
- c) an optical system operable to correct camera-shake and movable on a plane perpendicular to optical axis of a taking lens;
- d) driving means for driving said optical system;
- e) means for producing a coefficient converting the amount of camera-shake into an amount of drive of said optical system, the coefficient being specific to said optical system;
- and
- f) second calculation means for calculating an amount of drive to be driven by said driving means based on the coefficient produced by said producing means and the amount of camera-shake calculated by said first calculation means.
A camera comprising:
- a) detection means for detecting camera-shake;
- b) calculation means responsive to output of said detection means for calculating an amount of camera-shake on a film plane;
- c) correction means for correcting the camera-shake;
- d) producing means for producing a data representing a photographing magnification;
- e) comparing means whether or not the photographing magnification exceeds a predetermined value;
- and
- f) means for inhibiting the camera-shake correction by said correction means when the photographing magnification exceeds the predetermined value.
A camera comprising:
- a) detection means for detecting camera-shake;
- b) calculation means responsive to output of said detection means for calculating an amount of camera-shake on a film plane;
- c) means for producing a data representing a photographing magnification and for determining whether or not the photographing magnification is less than a predetermined value;
- and
- d) means for adopting the calculated amount of camera-shake as a data to correct the camera-shake only when the photographing magnification is less than the predetermined value.
Dependencies are inferred from the claim text.