Flashlight photographing device

Details Flashlight photographing device Flashlight photographing device

1981-04-21

1983-02-15

Adams, Russell E.

354 60F, 354149, 354196, G03B 708, G03B 716

Patent

active

043737927

ABSTRACT:
A flashlight photographing device includes a phototaking lens barrel capable of operatively associating an aperture setting member and a distance adjust member so that the product of an aperture value set by the aperture setting member and an object distance given by the distance adjust member maintains a predetermined value related to the quantity of emitted light of a flash device. The phototaking lens barrel includes structure for releasing the operative association between the aperture setting member and the distance adjust member. The releasing structure is capable of restraining the operation of one of the aperture setting member and the distance adjust member during the operation of the other of such members.

REFERENCES:
patent: 3009407 (1961-11-01), Brown
patent: 4275953 (1981-06-01), Watanabe et al.

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