Frame counter device

Details Frame counter device Frame counter device

1999-05-25

2000-12-12

Perkey, W. B.

Photography

Having camera indicator

Film condition indicator

116213, G01B 166

Patent

active

061609633

ABSTRACT:
A frame counter device includes a rotatable counter disk. A train of plural numbers are arranged on one face of the counter disk in an arc shape, and have an outermost point and an innermost point. The outermost point is the farthest from a rotational center of the counter disk and distant from the rotational center by a radius Ro. The innermost point is the nearest to the rotational center and distant from the rotational center by a radius Ri. The radius Ri is 60% or less of the radius Ro.

REFERENCES:
patent: 2401682 (1946-06-01), French
patent: 2682999 (1954-07-01), Grange
patent: 2700223 (1955-01-01), Stinson
patent: 2917981 (1959-12-01), Sewig
patent: 2987956 (1961-06-01), Planert et al.

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