ELECTRIC LIGHT OF RESCUE FACILITY Russian patent published in 2002 - IPC

FIELD: rescue facilities. SUBSTANCE: rescue facility has electric lamp with filament and safety cap. Reflectors mounted between lamp and cap on the way of light flux running to lower hemisphere convey portions of light flux incident on them to insufficiently illuminated parts of light sectors of upper hemisphere. Reflectors conveying light to central parts of ball sectors whose axes are aligned with direction of lamp filament greatest clearance and also reflectors conveying light to central part of upper hemisphere are conical in shape. Outlines and dimensions of reflectors are chosen to ensure maximal utilization of direct light flux running to lower hemisphere and reflected light fluxes completely fill up ball sectors insufficiently illuminated by direct light. EFFECT: improved equalizing of light intensity in all directions of upper hemisphere due to re- distribution of light flux. 2 dwg