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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||354/409 ; 354/1951 ; 354/19513|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 9 인용 특허 : 8|
This specification discloses a camera which comprises a lens driven by an electric motor and a distance detecting circuit and in which change-over is automatically effected between an automatic focus adjusting mode in which the lens is usually driven by a signal from the distance detecting circuit and a manual focus adjusting mode in which the lens is driven manually when a signal for driving the lens is not put out from the distance detecting circuit, that is, in the case of the concurrence of far focus and near focus of an object to be photographed or ...
A focus adjusting apparatus comprising: (a) a photo-taking lens whose imaging position is adjustable by varying the lens position. (b) manually operated switch means for moving the lens position of said photo-taking lens; (c) drive means for varying the lens position of said photo-taking lens by the signal of said manually operated switch means; (d) a detecting circuit for detecting the focus state varied by movement of said photo-taking lens, putting out an in-focus signal when the in-focus state is brought about, putting out a near-focus signal when sa...