System for making multiple original holograms or copies of a hol

Details System for making multiple original holograms or copies of a hol System for making multiple original holograms or copies of a hol

1978-12-26

1980-06-24

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

355 30, G03B 2700, G03B 2752

Patent

active

042092507

ABSTRACT:
A system for making multiple copies of a hologram or multiple original holograms on successive segments of a continuous length of blank film is disclosed herein. In the former case, this system includes two support arrangements, one for maintaining the original hologram in a fixed planar position and the other for maintaining the successive segments of blank film in a fixed copying position behind the original. In this particular system, the original hologram is held in place between two light transparent support plates, a front plate and a back plate, with the aid of a refractive index matching liquid and each successive segment of blank film is located across the back plate and maintained in a fixed position laterally therefrom solely by means of a continuous layer of preselected liquid substance which, at the same time, functions as an index matching medium. In the latter case or making original holograms, the original hologram just recited and its means for support would not be used.

REFERENCES:
patent: 1709320 (1929-04-01), Powers
patent: 2982176 (1961-05-01), Kay
patent: 3408144 (1968-10-01), Cowan
patent: 3488121 (1970-01-01), Dassonville
patent: 3554641 (1971-01-01), Jeffee et al.
patent: 3578836 (1971-05-01), Hannan
patent: 3614223 (1971-10-01), Ott
patent: 4105329 (1978-08-01), Carter et al.

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