Title: Process of coding indicia and product produced thereby

Abstract: A printed sheet of material has indicia thereon in scrambled or coded form produced by operation of an auto-stereoscopic camera using a lenticular screen. The indicia which appear inchoate to ordinary vision, can be decoded or unscrambled by viewing the same through a lenticular screen matched to that used in the scrambling process.

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Inventors: Alasia, Alfred V. (Whitestone, NY, US)

Application Number: 475951
Filing Date: 1974-06-03
Publication_date: 1976-02-10
Assignee:
Primary Class(es): 380/54 273/153R, 355/52, 359/462, 359/619, 359/900, 396/330, 396/338, 434/322
Other Classes:
US Patent Ref:

3178993	Apr, 1965	Ferris et al.	350/167.
3524395	Aug, 1970	Alasia	354/112.
3676000	Jul, 1972	Mayer et al.	350/167.

Other Refs:
Primary Examiner: Corbin, John K.
Assistant Examiner:
Attorney: Schiller & Pandiscio