Method of manufacturing inverse filters by holographic technique

Details Method of manufacturing inverse filters by holographic technique Method of manufacturing inverse filters by holographic technique

1980-01-30

1982-05-11

Corbin, John K.

350 37, 350320, G02B 532

Patent

active

043290205

ABSTRACT:
Disclosed is a method of making an inverse filter wherein a single photographic plate is illuminated by the object and reference waves so as to expose the photographic material in the logarithmic portion of its transmittance versus illumination curve to thereby form a holographic image which upon development forms the inverse filter.

REFERENCES:
patent: 3096176 (1963-07-01), Craig
patent: 3767284 (1973-10-01), Dammann

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