|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||250/201 ; 354/25|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 2 인용 특허 : 0|
The invention relates to an arrangement for automatically focusing the image of an object, obtained by an objective lens system onto an image plane, wherein a setting device is provided which is controlled by photo-electric sensors and which determines the optimum distances of the objective lens system from the image plane. In accordance with the invention, a CTD image sensor is disposed in the image plane, the read-out signals of which are obtained for a sequence of objective settings, integrated and compared with one another. The time or point of occur...
In an arrangement for focusing the image of an object into an image plane, wherein the image is derived by means of an objective lens system, and a cooperable setting device which varies the distance between at least a portion of the lens system and the image plane, the combination of a CTD image sensor having a plurality of image points aligned with a part of the image plane, means forming an output for said sensor for providing a sequential read-out of the image point values, an evaluating circuit to which the output of said sensor is supplied, means i...