Camera

Details Camera Camera

1994-06-23

1996-02-27

Mathews, A. A.

Optical: systems and elements

Prism

With reflecting surface

359694, 359696, G03B 1334, G02B 1514

Patent

active

054953090

ABSTRACT:
A camera has a two lens group zoom system composed of a front lens group and a rear lens group, and a home position check apparatus of the rear lens group driven by a stepping motor. The home position check apparatus is so arranged that a detection as to if the rear lens group is located at the home position is started only when the rear lens group reaches the predetermined position before the home position. Before the rear lens group reaches the predetermined position, only the movement of rear lens group to the home position is carried out but the home position check of rear lens group is not.

REFERENCES:
patent: 5196963 (1993-03-01), Sato et al.
patent: 5223981 (1993-06-01), Kaneda
patent: 5298933 (1994-03-01), Chigira

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