Photographing number change-over device for two lens camera

Details Photographing number change-over device for two lens camera Photographing number change-over device for two lens camera

1988-07-08

1989-07-25

Hix, L. T.

354125, G03B 160

Patent

active

048518670

ABSTRACT:
A photographing number change-over device for a two lens camera having two photographing lenses equipped with shutters, respectively, is capable of photographing two pictures on a film. The photographing number change-over device comprises a driving member moving to two different positions alternately every time shutter charge is effected, a light cut-off plate rotatable about an axis substantially in parallel with optical axes of the photographing lenses, a regulating member engaging the light cut-off plate and detachably engaging the driving member for anchoring the light cut-off plate at either of first and second positions where the light cut-off plate shuts off either of the two photographing lenses and anchoring the light cut-off plate at a third position where the light cut-off plate shuts off neither of the two photographing lenses, and a change-over member for causing the regulating member and driving member to engage and disengage from each other. The photographing number change-over device further comprises a counter device for displaying the number of photographing times, which comprises a counter dial device for advancing and retracting marks one by one to be displayed in a counter window and respectively interlocking with the change-over member and the driving member, and a counter window opening member for concealing and revealing the marks to be displayed in the counter window interlocking with operations of the change-over member.

REFERENCES:
patent: 3443499 (1969-05-01), Gianino
patent: 4101913 (1978-07-01), Gallistel et al.
patent: 4751537 (1988-06-01), Saita

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