Camera

Photography – Exposure control system responsive to distance

Patent

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Details

396166, 396241, 396276, G03B 718, G03B 1503

Patent

active

061379581

ABSTRACT:
In a camera having a camera body part and a lens barrel part, an optical filter arranged to be rotatable around an axis located inside a lens optical path derived from the lens barrel part (for example, around an axis substantially parallel with an optical axis of the lens barrel part), and a filter rotating part having a drive source (for example, an electric motor) for rotating the optical filter are contained in the camera body part.

REFERENCES:
patent: 3766841 (1973-10-01), Finnegan et al.
patent: 4040067 (1977-08-01), Kondo
patent: 4937609 (1990-06-01), Wakabayashi et al.

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