Led based light guide for aircraft formation lighting

摘要

A lighting device ( 1 ) includes one or more diode light sources ( 32 ), which are configured to emit light into the peripheral edges of a light guide ( 20 ). The light guide ( 20 ) includes a set of diffusing elements ( 22 ) for scattering the emitted light in a plurality of directions out of the front surface of the light guide ( 20 ). The diffusing elements ( 22 ) are distributed on the light guide ( 20 ) so that the scattered light achieves a particular characteristic, e.g., improved uniformity.