초록 ▼

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 a

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 in a case where the object to be photographed is of a low contrast, and in which even during the manual focus adjusting mode, the distance detecting circuit is operated and when an in-focus signal is put out from the distance detecting circuit, the lens is stopped for a predetermined time.

대표청구항 ▼

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

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 said photo-taking lens is in the near-focus state, and putting out a far-focus signal when said photo-taking lens is in the far-focus state; (e) a display portion for displaying the in-focus signal, the near-focus signal and the far-focus signal put out by said distance detecting circuit; and (f) control means for temporarily stopping the driving of said drive means in response to the in-focus signal from said detecting circuit for detecting the in-focus state.