Optics: measuring and testing – Of light reflection – With diffusion
Patent
1980-04-03
1982-12-28
Rosenberger, R. A.
Optics: measuring and testing
Of light reflection
With diffusion
356239, 356341, G01N 2147
Patent
active
043658962
ABSTRACT:
Light operative apparatus is located inside electro-optical instrument viewing window, such as that used by a radiation pyrometer or dimensional gage in a steel mill environment, to detect and compensate for optically attenuating objects which may accumulate on the outside surface of the viewing window. Light beam irradiates viewing window from inside and optics collects light radiation backscatter which varies as a function of light-scattering attenuating objects that have accumulated on the viewing window outside surface. A light backscatter detector feeds display, alarm and instrument compensation functions.
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Bethlehem Steel Corp.
Delaney Michael J.
Dower George G.
O'Keefe Joseph J.
Rosenberger R. A.
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