Reflectance probe

Details Reflectance probe Reflectance probe

1975-05-27

1978-05-30

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

With means to add charged solid or liquid particles to...

96 48R, 96 90R, 250571, G03C 504, G03C 524

Patent

active

040921646

ABSTRACT:
A method and apparatus for monitoring the buildup of fog in a non-silver free radical film while a latent image in said film is being optically developed, wherein the buildup of fog is sensed by radiation directed at a non-image area of said film and reflected from said area to a sensing device. The reflected radiation is altered as the buildup of fog takes place.

REFERENCES:
patent: 3042517 (1962-07-01), Wainer
patent: 3510300 (1970-05-01), Fotland et al.
patent: 3573046 (1971-03-01), Fotland et al.
patent: 3618504 (1971-11-01), Fotland
patent: 3620748 (1971-11-01), Fichter

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