ELECTRONIC LIGHT BEAM TESTER

摘要

The invention concerns an opto-electrical device allowing to check or to measure the orientation and the characteristic luminous intensities of light beams. The device is essentially characterized by containing at least a screen on which photo-electric transducers are situated, a positioning device according to a reference direction, amplifiers and voltage dividers which give signals proportional to the characteristic luminous intensities and comparators comparing these signals and the maxima of sub-sets.