| 摘要 |
In a motion picture camera having a variable focal length lens system including a focal converter and a film exposure window formed therein, behind which film to be exposed passes, an image-movement compensation device is provided for improving the definition of images recorded by the camera when the camera is subjected to vibrations. The image movement compensation device includes a reflecting element mounted in the camera to reflect a collimated light beam from the focal converter to the film passing the exposure window. The reflecting element is mounted for pivotal movement in the camera at the point of incidence of the light beam therewith in the elevation and azimuth planes. A magnetically damped gyroscopic stabilization means controls the spatial position of the reflecting element in the camera through a transmission means operatively connected therebetween. By this arrangement the light beam reflected from the reflecting element to the film is substantially unaffected by vibrations to which the camera is subjected and the point of incidence of the reflected light beam on the surface of the film at the exposure window remains constant.
|
