Study device of the properties of light emission of a light-emitting surface.

摘要

The system includes two collector lenses(L1, D1) designed to collect the light beams emitted from the surface, and to select from them a power level. A field diaphragm (D2) designed selectS a part of the objects surface to observe and a field lens (L3) designed minimises the angular distance between the beams emitted from the surface being studied. The system has also detectors(M, N) designed to determine the characteristic values of the light beam emitted from the surface part being studied.