Test tube projection system and method

Details Test tube projection system and method Test tube projection system and method

1977-07-11

1978-10-17

Stephan, Steven L.

Optics: image projectors

Microprojector

353 75, 356197, G02B 2136, G03B 2122, G01N 2100

Patent

active

041205758

ABSTRACT:
A system for the projection of the magnified image of the liquid contents on the wall of a test tube includes a light-tight cabinet, a light source, a test tube holding means which preferably positions the test tube at an angle of 10.degree.-40.degree. from the horizontal, a projection lens and a rear viewing screen.

REFERENCES:
patent: 2731725 (1956-01-01), Stefacek
patent: 3208337 (1965-09-01), Appeldorn
patent: 3240113 (1966-03-01), Stechemesser et al.
patent: 3850516 (1974-11-01), Mallinson et al.

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