Switching device with DX contacts for a camera

Details Switching device with DX contacts for a camera Switching device with DX contacts for a camera

1998-06-11

1999-06-22

Blankenship, Howard B.

Photography

Exposure data from film container

Electrical component on or in film container

396543, G03B 724

Patent

active

059151340

ABSTRACT:
A release switch is directly activated by a self-timer button, and a shutter release button first activates a photometric switch, then the release switch. The self-timer operation is carried out in response to the activation of only the release switch, a photometric operation is carried out in response to the activation of only the photometric switch, and a shutter release operation is carried out in response to the secuential activation of both the photometric switch and the release switch.

REFERENCES:
patent: 4112447 (1978-09-01), Iwata
patent: 4200371 (1980-04-01), Suzuki et al.
patent: 4324472 (1982-04-01), Terada et al.
patent: 5539492 (1996-07-01), Higaki
patent: 5678107 (1997-10-01), Arai et al.

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