Lighting device for generating a rectangular pattern at the work area, e.g. for illuminating pedestrian crossings

摘要

There is described a lighting device, which can be used for example for illuminating pedestrian crossings or in other applications where it is necessary to form a defined and uniform rectangular pattern, which comprises a reflector element (2) and a screen (4) with either one or both surfaces having an array of cylindrical microlenses (5) or microprisms (6). <IMAGE>