| 摘要 |
<p>A reliable driving control is obtained without any special structure for a corrective optical system for correcting an image deviation resulting from vibrations or shake or unsteady motions caused by a manual holding. A corrective optical system is movably supported in a plane rectangular to the optical axis. There are provided driving means for driving this system and a movable frame operated by this driving means to give a motion accompanying rotational component when it is driven. An angle velocimeter is fixed to this movable frame for detecting its angle variations with respect to the inertial system and for controlling the operation of the driving means. The shifting amount D' for correcting an image deviation d (= f . theta ) (variation angle theta , focal length f) is D' = D/A (where A = a proportional coefficient and D = an image shifting amount). In response thereto, the movable member is controlled to make its angle variation - theta with respect to the optical system. This performs the correction of an image deviation. <IMAGE></p> |
