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Real-time detection of surface damage by direct assessment of the BRDF

: Rothe, H.; Duparre, A.; Truckenbrodt, H.; Timm, M.

Stover, J.C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Optical scattering. Applications, measurement and theory II : 15-16 July 1993, San Diego/Calif.
Bellingham, Wash.: SPIE, 1993 (SPIE Proceedings Series 1995)
ISBN: 0-8194-1244-9
Conference "Optical Scattering: Applications, Measurement, and Theory" <1993, San Diego/Calif.>
Fraunhofer IOF ()
Lichtstreuung; light scattering; Oberflächenrauheit; surface roughness

An approach is presented which allows to develop an in-process fiber optic stray light sensor and adapted real-time signal processing procedures for quality control of polished optical glass surfaces. The power of this new method is illustrated by presenting an instructive example in great detail.