|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G03B-003/10 G03B-013/20 G05B-019/27|
|미국특허분류(USC)||354/404 ; 354/1951 ; 250/204 ; 318/601|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 19 인용 특허 : 9|
This invention presents a range finding device when 1st and 2nd detection images of an object are scanned by signal storing type image sensing means to obtain image scan signals, which are quantized by quantization means to produce quantized image data for said 1st and 2nd detection images. On the basis of the thus obtained quantized image data, the location within the 2nd detection images of one set of M successive elements of the 2nd detection image which is most similar to M successive elements of the 1st detection image is detected, and with the aid ...
A focus control system for automatically focusing objective lens means onto an object, comprising: (A) means for detecting deviation of the adjusted position of the objective lens means from an in-focus position at which the lens means is properly focused onto the object, said deviation detection means providing data on the deviation; (B) means for driving the objective lens means along an optical axis of the lens means; (C) means for controlling said driving means on the basis of the deviation data provided by said deviation detection means so as to pos...