SUN-RAYS CONCENTRATOR FOR PHOTOELECTRIC MODULES Russian patent published in 2000 - IPC

FIELD: solar-electric power engineering. SUBSTANCE: concentrator is made of optically transparent material and has larger radiation-input surface area and smaller radiation output area; concentrator material is enclosed between symmetrical parabolic side walls covered with reflecting material. Novelty is that side walls covered with reflecting material have varying thickness of optically transparent material expanding towards radiation output surface. The latter is uniformly illuminated. Concentrator may have symmetry axis or plane. Optical material input for concentrator manufacture is brought to minimum. EFFECT: enhanced efficiency and rays concentration on output surface, reduced mass of concentrator. 1 cl, 3 dwg