Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1981-05-07
1982-07-27
Hix, L. T.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
354319, 250560, G03D 308
Patent
active
043414532
ABSTRACT:
An automatic replenisher control system for a photographic cine processor includes a film type sensor which identifies, by film type, the unprocessed film entering the processor. Replenishment of processor fluids is controlled as a function of the identified film type. The film type sensor includes an array of reflective infrared (IR) sensors which are positioned across a path of the film. Each infrared sensor provides a sensor signal indicative of whether the film is adjacent the infrared sensor. Signal processing circuitry, including a digital computer, first determines the width of the film by sampling the signals from the infrared sensors a series of times, and totalling the number of sensor signals indicating the film is adjacent the sensor. 110 format film and large format films (such as 46 mm, 120/220 and 70 mm format films), are identified solely on the basis of width. A perforation sensing routine is performed to distinguish between leader, 126 format film and 135 format film. The perforation sensing is performed by reading the output signals of selected IR sensors and determining the presence of perforations along each edge of the film.
REFERENCES:
patent: 4021832 (1977-05-01), Krehbiel et al.
patent: 4057817 (1977-11-01), Korb et al.
patent: 4222657 (1980-09-01), Leuchter
patent: 4300828 (1981-11-01), Kaufmann
Eastman Kodak Company, "New Kodacolor Continuous Film Processor, Model 1635."
Hix L. T,.
Mathews Alan
Pako Corporation
LandOfFree
Photographic film type sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photographic film type sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic film type sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2022855