Shutter speed setting and display apparatus

Details Shutter speed setting and display apparatus Shutter speed setting and display apparatus

1979-12-26

1982-08-24

Gellner, Michael L.

354 50, 354 60L, 354234, 354289, G03B 962, G03B 1718

Patent

active

043458262

ABSTRACT:
A shutter speed setting and display apparatus for use with a single-lens reflex camera comprises a shutter speed variation apparatus, a shutter speed setting apparatus and a shutter speed display apparatus. The shutter speed variation apparatus produces count signals and applies the signals to the shutter speed setting apparatus for setting the shutter speed and, as the shutter speed display apparatus, a digital display apparatus can be employed, which displays either a shutter speed set by the shutter speed variation apparatus or a shutter speed determined by an automatic exposure measurement circuit or both. To this shutter speed setting and display apparatus, a flashlight source detecting apparatus and a shutter speed restricting apparatus can be attached for restricting the shutter speed to be set by the shutter speed which is to be set by the shutter speed variation apparatus in a synchronizing range of the flashlight source with a shutter of the camera.

REFERENCES:
patent: 3593637 (1971-07-01), Fahlenberg et al.
patent: 3995284 (1976-11-01), Kitaura et al.
patent: 4021828 (1977-05-01), Jura et al.
patent: 4083059 (1978-04-01), Tsunekawa et al.
patent: 4091396 (1978-05-01), Sahara et al.
patent: 4107708 (1978-08-01), Saito et al.
patent: 4117499 (1978-09-01), Strauss
patent: 4121231 (1978-10-01), Taguchi et al.
patent: 4153358 (1979-05-01), Yamada

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