VORRICHTUNG ZUM BELEUCHTEN VON BAUTEILEN AUS TRANSPARENTEM MATERIAL BEI DER FEHLERPRUEFUNG.
摘要
The flow detector uses a movable light beam for point scanning of the optical component (6) during its rotation about its optical axis. The scanning beam is provided by a laser (1) and is deflected periodically across the surface of the optical component (6) via a facetted mirror drum (3) rotated at a higher rotation rate than the optical component. The mirror drum is followed by a convex lens (4) providing a parallel beam deflected onto the optical component via an angled planar mirror (5), with a detector (10) for the light passing through the component. Pref. the latter mirror is adjustable along the optical axis of the convex lens and can be rotated about an axis perpendicular to this.