Surface reflectivity device and method

Details Surface reflectivity device and method Surface reflectivity device and method

1982-09-27

1985-11-12

Rosenberger, R. A.

Optics: measuring and testing

Of light reflection

By comparison

G01N 2148

Patent

active

045524599

ABSTRACT:
A device and method for measuring the reflectivity of the tungsten oxide surface coating on cathode ray tube heaters are described, in which selected small areas of an illuminated heater wire turns are scanned by a microscope, and the collected reflected light converted to voltage values by a photomultiplier tube and compared to a standard value.

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patent: 4029420 (1977-06-01), Simms
patent: 4030837 (1977-06-01), Kojima et al.
patent: 4050820 (1977-09-01), Hanny
patent: 4054391 (1977-10-01), Witte
patent: 4260262 (1981-04-01), Webster
patent: 4406545 (1983-09-01), Montone et al.
patent: 4444499 (1984-04-01), Akiyama et al.

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