LIGHTING SYSTEM Russian patent published in 2002 - IPC

FIELD: optics. SUBSTANCE: given lighting system has at least two light-optical systems placed in symmetry with reference to radiation source, each comprising two-components condenser and optical deflector. First component of condenser comes in the form of single-lens collector with paraboloid surface. Second component is manufactured in the form of positive lens. In this case relations between focal distances of condenser, first and second components and distance between first and second components specified in formula of invention are fulfilled. Optical deflector can be mounted between first and second components of condenser. It can come in the form of interference mirror or prism of total internal reflection. Diaphragm can be put on second component to impart bundle of rays with form different from round shape. EFFECT: collection of light beam from source in solid angle greater than π. 4 cl, 1 dwg