LIGHTING DEVICE AND METHOD OF CONTROLLING DIMMING

摘要

PURPOSE: A lighting device and a dimming control method thereof are provided to improve the visibility of a user by varying the brightness of a lighting device nonlinearly through generating driving current signals. CONSTITUTION: A user input part(150) receives a dimming signal. The dimming signal is varied linearly. A lighting control part generates the dimming signal and a nonlinear drive current signal. A lighting part(130) generates lighting according to the nonlinear drive current signal. A PWM(Pulse Width Modulation) signal generating part generates a PWM signal. [Reference numerals] (110) Power supply part; (120) Lighting control circuit; (130) Lighting part; (140) Sensing part; (150) User input part;