Optical data recording circuit for a photographic camera

Details Optical data recording circuit for a photographic camera Optical data recording circuit for a photographic camera

1997-03-20

1999-02-09

Metjahic, Safet

Photography

With data recording

Optical

396205, 396303, G03B 1724, G03B 1503, G03B 300

Patent

active

058706399

ABSTRACT:
Data bits representing different aspect ratio formats of film image frames are optically recorded on photographic film by means of light emitting devices energized from the flash charge storage capacitor. The light emitting devices are driven by a constant current source control circuit, the control circuit and light emitting devices being coupled to the capacitor by the flash sync switch. Data bit format selection is achieved by either user operated light emitting device selection switches or by means of an optical bit forming mask having plural aperture selectable by means of a movable slide shutter.

REFERENCES:
patent: 4085412 (1978-04-01), Yoshino
patent: 4112444 (1978-09-01), Yonemoto et al.
patent: 4140378 (1979-02-01), Suzuki et al.
patent: 4174165 (1979-11-01), Hohda et al.
patent: 4181416 (1980-01-01), Ohtaki et al.
patent: 4183646 (1980-01-01), Tsunefuji
patent: 4235544 (1980-11-01), Yamada et al.
patent: 4323305 (1982-04-01), Satoh
patent: 4332445 (1982-06-01), Hosono
patent: 4362369 (1982-12-01), Kazami et al.
patent: 4656574 (1987-04-01), Salchli
patent: 4973997 (1990-11-01), Harvey
patent: 5249007 (1993-09-01), Tanaka
patent: 5471265 (1995-11-01), Shibata et al.
patent: 5486885 (1996-01-01), Matsumoto
patent: 5519463 (1996-05-01), Nakamura et al.
patent: 5619737 (1997-04-01), Horning et al.

Affiliated with

Also associated with

Rating

Optical data recording circuit for a photographic camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical data recording circuit for a photographic camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical data recording circuit for a photographic camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1959356