LIGHTING APPARATUS Russian patent published in 2016 - IPC F21V8/00 

FIELD: lighting.

SUBSTANCE: invention relates to lighting engineering, in particular to lighting devices for colour interior decoration of premises. Lighting device comprising a light source, a hollow light guide with inner light-reflecting surface and optical slot, is equipped with a needle-like shaft installed with possibility of movement of particles of colored bulky translucent material, placed in the light guide. Side wall in the lower part of the light guide is composed of inclined planes, and optical slot has the shape of a channel with inner surface along the radius of needle shaft. As the colored bulky material can be used crushed colour glass, plastic or other translucent materials.

EFFECT: technical result is simplified design of the lighting device and provision of change in luminous power.

1 cl, 2 dwg