Complementary mask image digitizer method and apparatus

Details Complementary mask image digitizer method and apparatus Complementary mask image digitizer method and apparatus

1975-12-16

1977-08-02

Lieberman, Eli

Radiant energy

Photocells; circuits and apparatus

Interference pattern analysis

250237R, 350162SF, G02B 2738, H01J 3912

Patent

active

040398439

ABSTRACT:
A scanning microdensitometer comprising complementary sampling aperture components which produce positive and negative contributions to the sample measurements.

REFERENCES:
patent: 3836254 (1974-09-01), Barringer

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