Light emitting diode lighting system having haze-changeable film

摘要

Disclosed is an LED lighting system comprising a housing equipped with a transparent substrate as an illuminating side, an LED light source located in the housing, and a haze-changeable film attached to the transparent substrate, wherein the transparency of the haze-changeable film changes depending on the application of electric power and the haze-changeable film has a haze on light varying with the intensity of an applied voltage/current. The LED lighting system may be useful for interior emotional lighting because a direct/indirect lighting and a mixed lighting thereof can be provided with a single system and various correlated color temperatures can be produced with a single LED light source.

主权项

1. A light emitting diode (LED) lighting system comprising:
a housing comprising a transparent substrate as an illuminating side; an LED light source located in the housing; and a haze-changeable film attached to the transparent substrate, wherein the transparency of the haze-changeable film changes depending on the application of electric power, and the haze-changeable film has a haze on light varying with the intensity of an applied voltage or an applied current, wherein a change in a haze of the haze-changeable film is related to a change in one of a voltage and a current applied to the haze-changeable film and a change in a color temperature of the haze-changeable film is related to a change in the other of the voltage and the current applied to the haze-changeable film.