Internal light with linear and selectively directional light component e.g. for lighting of shelves and box-offices etc, uses symmetrical double-sided active reflector in generation of optically directional light components

摘要

A light with a closed housing (12), two different types of filament (16,18) and electric ballast devices (20,21). In the housing (12) optically directional light components of the filament (18) are generated with the help of a symmetrical double-sided active reflector (17) and the selectively directional light components of the swiveling- and tilting-filament (16) are superposed so that a uniform low light density arises on the whole surface with somewhat higher values at the light exit surface of the light source (16).