Patent ID: 9414457
Filing Date: 2016-08-09
CPC Classification: H05B

Claim Text:
1. A lighting device comprising: a first input terminal for receiving an AC voltage phase-controlled by a first phase-control dimmer; a first current supply unit configured to supply a first current to a first light source unit which emits light of a first color; a second current supply unit configured to supply a second current to a second light source unit which emits light of a second color different from the first color; a control circuit which controls a total light amount and a color of combined light by adjusting a level of the first current and a level of the second current, the total light amount being a total amount of the light emitted from the first light source unit and the light emitted from the second light source unit, the combined light including the light emitted from the first light source unit and the light emitted from the second light source unit; and a signal supply unit configured to supply a control signal to the control circuit, wherein the control signal includes first control information and second control information, the first control information is information for controlling either one of the total light amount and the color of the combined light, and corresponds to a conduction angle of the first phase-control dimmer, and the second control information is information for controlling an other one of the total light amount and the color of the combined light.