Title: Folding system with photoelectric detection means

Abstract: A system comprising a light source, a plurality of fiber form optical light guides each having one end proximate to said light source and in a position to operatively receive light input therefrom; light projector means proximate to and in a position to receive light from the other end of at least some of said light guides; photodetector means spaced from and optically aligned with said projector means adopted and positioned to receive light projected from said light projection means; sheet or film form material intermittently disposed in moving contact with said light projector means and disposed between said light projector and said photo-detector; and means, operative in response to the modulating effect of said sheet form material on said light projector-photo-detector combination, for performing a function on said sheet form material.

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Inventors: Sussman, Arthur (Teaneck, NJ, US)

Application Number: 762274
Filing Date: 1977-01-25
Publication_date: 1978-04-25
Assignee:
Primary Class(es): 493/14 250/227.21, 250/559.4, 493/19, 493/405
Other Classes:
US Patent Ref:

3773315	Nov, 1973	Tsien	270/69.
3806730	Apr, 1974	Tirkkonen et al.	250/227.

Other Refs:
Primary Examiner: Smith, Alfred E.
Assistant Examiner: Moore, David K.
Attorney: