LIGHTING SYSTEM ENABLING COMBINATION OF SEVERAL LIGHT BEAMS

摘要

The invention relates to a lighting system enabling the combination of two light beams (12.1, 12.2). The system comprises a prism (20) defined by two input surfaces (20.1, 20.2) forming a diehdral. An integrator device (30) is coupled to an output surface (20.3) of the prism. The prism is penetrated by each beam via one of the input surfaces. Said beam is reflected towards the output surface (20.3) by internal reflection on the other input surface. Said beams or essentially focussed onto the input surface of the integrator device such that a practically homogeneous output beam (40) is provided. The invention can be used for projection and overhead projection devices.