2022-03-082022-03-081999https://publica.fraunhofer.de/handle/publica/304430NOVELTY - The system has an optical detection system (2) and a Coblentz sphere (1). Scattered light is measured in a transmission and a reflection direction rotatable relative to a light source. The Coblentz sphere and the optical detection system together can be swivelled through 180 deg. , about an axis (A) parallel to the sample plane. The combined system is held exactly in both end bearings with a securing unit (5). USE - Measurement of scattered light at a sample selectively in transmission and reflection direction also determines illuminating light in both directions. ADVANTAGE - Facilitates measurement of scattered light in reflection and in transmission direction, reproducible under the same conditions, without extensive adjustments. DESCRIPTION OF DRAWING(S) - The figure shows an example of the system with which the scattered light part is measured in a position, with this scattered light in a reflection direction. Coblentz sphere 1 Detection system 2 Securing unit 5 Axis of r otation Ade608620patent1999-29904098