Photographic camera with multi-purpose exposure-parameter adjust

Details Photographic camera with multi-purpose exposure-parameter adjust Photographic camera with multi-purpose exposure-parameter adjust

1979-03-14

1981-08-18

Hix, L. T.

354 53, 354202, 354268, 354273, 354289, G03B 700, G03B 902, G03B 1700, G03B 1738

Patent

active

042843421

ABSTRACT:
A slide member is slid by the user for adjusting the value of an exposure parameter, such as exposure-aperture size or exposure duration. The slide member has an inoperative setting and various operative settings, some of which are associated with different exposure-parameter values, others of which are additionally or alternatively associated with other functions and/or operating modes, the user necessarily often referring to the slide member because of its multi-purpose control actions. Electrical switch means are furthermore responsive to the setting of the slide member. A mechanical indicator mechanism of simple design, involving in the preferred embodiment a blocking blade coupled to the slide member and moving into and out of a little indicator window, quickly indicates to the user whether the slide member is in its inoperative setting or one of its various operative settings. Preferably, battery-connect action for a variety of camera circuits occurs when the slide member is moved out of its inoperative setting.

REFERENCES:
patent: 3368468 (1968-02-01), Reutschler
patent: 3648581 (1972-03-01), Umemura
patent: 3921187 (1975-11-01), Kobori
patent: 4041508 (1977-08-01), Edamoto et al.
patent: 4198149 (1980-04-01), Nomura et al.

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