Camera having zoom lens system

Details Camera having zoom lens system Camera having zoom lens system

1990-06-13

1993-04-20

Perkey, W. B.

Optical: systems and elements

Prism

With reflecting surface

3541951, 359698, 358227, G03B 500, G03B 1336, H04N 5232

Patent

active

052047105

ABSTRACT:
A camera having a zoom lens system and detecting means for detecting photographic conditions such as distance to an object, a photographic magnification and like. Differentiation between a focal length range enabling a power zoom operation and a focal length range not enabling the power zoom operation is provided by the detecting means.
The zooming operation is permitted only to a short focal length side in a particular region determined by the distance to the object, the focal length and the like. Further, an auto zooming operation is permitted only in the particular region.

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patent: 4896177 (1990-01-01), Kazami et al.
patent: 4942417 (1990-07-01), Miyazawa et al.
patent: 4951075 (1990-08-01), Tokumaru et al.
patent: 4962400 (1990-10-01), Otani et al.
patent: 4994842 (1991-02-01), Itoh et al.
patent: 5010358 (1991-04-01), Miyamoto

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