VEHICLE LIGHTS BLACKOUT DEVICE Russian patent published in 1995 - IPC

FIELD: road transport; vehicle lighting system; blackout devices. SUBSTANCE: blackout device has non-transparent housing which covers light lens. Holes in housing opposite to light lamp and reflector are overlapped by light filter and non-transparent holder with diaphragming holes. Light filter is made of optically transparent material and has chamber and spherical recess in center of lower part pointed towards light filter external side. Diaphragming holes in holder of light filter are arranged opposite to chamber which is located out of the limits of light hole in blackout device housing. Diameter of diaphragming holes in light filter holder is less than length of chamber, and depth of spherical recess in center of light filter lower part is less than height of chamber. EFFECT: enhanced blackout. 2 dwg