Microdensitometer with submicron resolution having dual diaphrag

Details Microdensitometer with submicron resolution having dual diaphrag Microdensitometer with submicron resolution having dual diaphrag

1990-08-23

1991-10-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250237R, 359385, 359368, G01V 904

Patent

active

050536290

ABSTRACT:
A microdensitometer capable of submicron resolution is achieved by incorporation of adjustable diaphragms situated outside the optics of the microdensitometer.

REFERENCES:
patent: 2612608 (1952-09-01), Miller
patent: 3876289 (1975-04-01), DeVeer et al.
patent: 4063797 (1977-12-01), Taira
patent: 4657198 (1987-04-01), Shimizu et al.

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