Method and apparatus for production of holographic optical eleme

Details Method and apparatus for production of holographic optical eleme Method and apparatus for production of holographic optical eleme

1980-08-18

1985-07-23

Corbin, John K.

350 385, 350 372, G42B 532, G43H 122

Patent

active

045305641

ABSTRACT:
System holographic optical element 22 has a substrate 24 and developed grating carrying layer 26 and is for use in an optical system. It is exposed from a coherent point source 50 with the aid of a fabrication holographic optical element 40 having a grating layer 44 so that the photosensitive emulsion (i.e., point 38) is exposed both directly from the point source 50 and by reflection from a point 56 in the grating in the fabrication holographic optical element.

REFERENCES:
patent: 3639031 (1972-02-01), Lin
patent: 3647289 (1972-03-01), Weber
patent: 3758186 (1973-09-01), Brumm
patent: 3940204 (1976-02-01), Withrington
patent: 4312559 (1982-01-01), Kojima et al.

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