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Qualitätsprüfung in der Glasindustrie

: Großer, J.; Mischo, H.; Ottermann, C.; Pfeifer, T.

Qualität und Zuverlässigkeit : QZ 42 (1997), No.6, pp.693
ISSN: 0033-5126
ISSN: 0720-1214
Journal Article
Fraunhofer IPT ()
Asphärenprüfung; automatisierte Justierung; Glasdickenmessung; Glasprüfung; Hindle-Test; interferometrische Formprüfung; Welligkeitsmessung

An optical, nondestructive measuring process using laser technology. Presentday requirements applicable to the surface of special types of glass call for a non-destructive measuring technique. With very low contact forces, this cannot be achieved with conventional, tactile measuring systems. Here, the potential of optical measuring systems for non-destructive measuring purposes is presented with reference to two industrial applications, namely the quality testing of display window glass and the ultra-precise measurement of mirrors.