Electronic storage, indicator and exposure time control device f

Details Electronic storage, indicator and exposure time control device f Electronic storage, indicator and exposure time control device f

1976-03-15

1977-09-06

Adams, Russell E.

354 24, 354 50, 354 53, 354 60A, 354 60L, G03B 708

Patent

active

040471896

ABSTRACT:
An electronic device for storing and indicating illumination parameters and for controlling the exposure time for photographic cameras having an exposure meter and a timer. The exposure meter includes an analog/digital converter with a digital storage part having a plurality of binary stages. These various stages correspond to different intensities of illumination of an object. The timer includes a combination of binary ratio reducers and logic gates and these are adapted to be selected by the analog/digital converter or by manual adjustment. A generator produces impulses which control the timer.

REFERENCES:
patent: 3824608 (1974-04-01), Toyoda
patent: 3843249 (1974-10-01), Kitaura
patent: 3868704 (1975-02-01), Yamada et al.
patent: 3879118 (1975-04-01), Kiyohara et al.
patent: 3900855 (1975-08-01), Stempeck
patent: 3903528 (1975-09-01), Kee
patent: 3909137 (1975-09-01), Kisanuki
patent: 3945025 (1976-03-01), Stempeck

Affiliated with

Also associated with

Rating

Electronic storage, indicator and exposure time control device f does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic storage, indicator and exposure time control device f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic storage, indicator and exposure time control device f will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2166243