Variable focus lens device in camera

Photography – Having variable focal length of camera objective – Automatic change of focal length

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Details

396349, G03B 1704

Patent

active

058191208

ABSTRACT:
An initial position of a variable focus lens is set substantially halfway between a wide and a telephotographing end. Thus, just after the initial position is set by turning on a power switch, both the wide photographing and the telephotographing can be performed quickly. The instantaneous change of a moving object can be quickly photographed in a desired visual field. In the present invention, a composition at the initial position which is set by turning on the power switch is not so different from a composition at the wide photographing side or the telephotographing side. Therefore the user is not confused by any composition during photographing.

REFERENCES:
patent: 5159364 (1992-10-01), Yanigisawa et al.
patent: 5515129 (1996-05-01), Miyazawa et al.

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