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US 5,850,576 AGranted
Blur prevention system for optical apparatus
AssigneeOlympus Optical Co., Ltd.
InventorYoshinori Matsuzawa
Life of this patent
Estimating the term…
Abstract
A blur prevention system for an optical apparatus includes a camera body having combined unitedly a viewfinder for observing an object image and a photography unit including a photography optical system for exposing film or electrically recording an object image, a holding unit separated from the camera body and used to hold the camera body, a blur detector incorporated in the camera body for detecting a magnitude of trembling of the camera body, and a blur prevention drive unit incorporated in the holding unit and including a driving mechanism for displacing the camera body relative to the holding unit according to the magnitude of trembling detected by the blur detector so that the tremble of the camera body can be canceled.
Claims47
A blur prevention system for a camera, comprising:
- a camera body having a viewfinder for observing an object image, and a photography unit, including a photography optical system, for exposing film or electrically recording the object image;
- a holding unit separated from said camera body and used to hold said camera body;
- a blur detector, incorporated in said camera body, for detecting a magnitude of trembling of said camera body;
- and
- a blur prevention drive unit incorporated in said holding unit and including a driving mechanism for displacing said camera body relative to said holding unit according to the magnitude of trembling detected by said blur detector so that the trembling of said camera body can be canceled.
2 more elements
A blur prevention system for a camera, comprising:
- a camera body having a strobe unit for irradiating illumination light to an object, and a photography unit, including a photography optical system, for exposing film or electrically recording an object image;
- a holding unit separated from said camera body and used to hold said camera body;
- a blur detector, incorporated in said camera body, for detecting a magnitude of trembling of said camera body;
- and
- a blur prevention drive unit incorporated in said holding unit and including a driving mechanism for displacing said camera body relative to said holding unit according to the magnitude of trembling detected by said blur detector to cancel the tremble of said camera body.
2 more elements
A blur prevention system for a camera, comprising:
- a camera body having a range finder unit for use in measuring a distance to an object or a photometry unit for use in measuring luminance of the object, and a photography unit, including a photography optical unit, for exposing film or electrically recording an object image;
- a holding unit separated from said camera body to hold said camera body;
- a blur detector, incorporated in said camera body, for detecting a magnitude of trembling of said camera body;
- and
- a blur prevention drive unit incorporated in said holding unit and including a driving mechanism for displacing said camera body relative to said holding unit according to the magnitude of trembling detected by said blur detector to cancel the tremble of said camera body.
2 more elements
A blur prevention system for a camera, comprising:
- a camera body having a photography unit, including a photography optical system, for exposing film or electrically recording an object image;
- a blur detector, incorporated in said camera body, for respectively detecting magnitudes of trembling of said camera body about a first axis and a second axis;
- a first grip including a first blur preventing mechanism for directly displacing said camera body via a first drive shaft according to the magnitude of trembling about said first axis detected by said blur detector so that the tremble of said camera body can be canceled;
- and
- a second grip including a second blur preventing mechanism for directly displacing said camera body via a second drive shaft according to the magnitude of trembling about said second axis detected by said blur detector so that the tremble of said camera body can be canceled.
2 more elements
An optical apparatus for use in observing an object, comprising:
- an observation optical system for use in observing an object;
- a holding unit by which a photographer holds said optical system;
- a blur detector, incorporated in said holding unit, for detecting a magnitude of trembling of said observation optical system derived from a tremble of the photographer;
- and
- a blur prevention drive unit for displacing said observation optical system relative to said holding unit according to an output of said blur detector so that tremble of said observation optical system can be canceled.
2 more elements
A blur prevention system for a camera, comprising:
- a blur detector, incorporated in a camera body, for detecting a magnitude of trembling applied to said camera body;
- a first vibration isolator for alleviating an adverse effect of a tremble in a simplified manner according to an output of said blur detector;
- and
- a second vibration isolator, separated from said camera body, for receiving a blur signal from said blur detector and driving said camera body so that the tremble applied to said camera body can be canceled.
1 more element
A blur prevention system for a camera, comprising:
- a camera body;
- a blur detector, incorporated in said camera body, for detecting a magnitude of trembling applied to said camera body;
- a simplified vibration isolator for alleviating an adverse effect of a tremble in a simplified manner based on an output of said blur detector;
- and
- an output terminal through which a blur signal sent from said blur detector or a signal proportional to said blur signal is outputted externally to said camera body.
2 more elements
A blur prevention system for a camera, comprising:
- a camera body;
- a blur detector, incorporated in said camera body, for detecting a magnitude of trembling applied to said camera body;
- a grip separated from said camera body and including an input terminal through which a blur signal sent from said blur detector is received;
- and
- a vibration isolator, incorporated in said grip, for driving said camera body to cancel a tremble applied to said camera body.
2 more elements
A blur prevention system for a hand-held optical apparatus including an optical system for observation or photography, comprising:
- a blur detector, incorporated in a main unit of said optical apparatus, for detecting a magnitude of trembling applied to said main unit of said optical apparatus;
- an actuator for canceling trembling;
- a driving force output member, partly exposed to an exterior of said optical apparatus, for outputting a driving force exerted by said actuator;
- and
- a control unit for responding to an output signal of said blur detector and outputting a control signal to said actuator so that a movement made by the entire optical apparatus due to a tremble can be canceled.
2 more elements
A blur prevention system for a camera, comprising:
- a detector for detecting a magnitude of trembling of said camera;
- and
- a drive unit for driving said camera according to a magnitude of trembling detected by said detector so that a tremble of said camera can be canceled, said drive unit including a rotating member, and including a first rotating mechanism for rotating said rotating member in a first direction of rotation and a second rotating mechanism for rotating said rotating member in a second direction of rotation,
- wherein said first rotating mechanism and second rotating mechanism work to clear a backlash of a gear train for conveying a driving force exerted by said drive unit to said rotating member.
1 more element
A blur prevention system for a camera, comprising:
- a blur detecting means, incorporated in a camera body, for detecting a magnitude of trembling of a camera;
- a blur preventing means for enabling exposure when an output of said blur detecting means becomes equal to or smaller than a given value;
- a grip freely attachable or detachable to or from said camera;
- and
- a driving means, incorporated in said grip, for moving said camera relative to said grip in a direction, in which the tremble can be canceled, according to an output of said blur detecting means.
2 more elements
A hand-held optical apparatus for observation or photography, comprising:
- a blur detecting means for detecting a magnitude of trembling applied to said optical apparatus;
- a rotating member located at a position at which said rotating member comes into contact with a hand of an operator when said optical apparatus is held with the operator's hands;
- and
- a blur prevention system for rotating said rotating member in response to an output of said blur detecting means and moving said optical apparatus relative to the hands holding said optical apparatus.
1 more element
Dependencies are inferred from the claim text.