Patent ID: 8243359

Claim:
A window blind ( 10 ) with at least one lamella ( 25 ) and at least one lighting element ( 20 ), wherein the lamella ( 25 ) comprises an illuminating body ( 30 ), the lighting element ( 20 ) injects an artificial light ( 21 ) into the illuminating body ( 30 ), the illuminating body ( 30 ) comprises a light guiding material, configured to transport the artificial light ( 21 ), the illuminating body ( 30 ) comprises a light extraction means ( 40 ), configured to receive and to deflect the artificial light ( 21 ) out of the illuminating body ( 30 ), characterized in that, the light extraction means ( 40 ) is embedded within the illuminating body ( 30 ), and the light extraction means ( 40 ) is controllable, in order to vary the degree of deflection of the artificial light ( 21 ).