Patent ID: 8579795

Claim:
A light modulation device for generating modulated color component output signals adapted for use by a light projection device for modulating light projected thereby, the light modulation device comprising: an electronic circuit, comprising: a light modulator generating said color component output signals according to an intensity parameter for controlling a brightness of said light and a color parameter for controlling a hue of said light, the color parameter being controlled by a modulated color signal; and a color modulation generator for generating the modulated color signal, the color modulation generator being in communication with the light modulator for providing the modulated color signal thereto, said color modulation generator having: a main Low Frequency Oscillator (LFO) generating an oscillating signal; and a color mixer performing a summation of said oscillating signal of the main LFO with a base color signal, thereby providing said modulated color signal, said color mixer comprising a modulo summation element such that: C combined ( t )=( C b ( t ) +C lfo ( t ))modulo C range ; wherein t represents time, C combined (t) is the modulated color signal, C b (t) is the base color signal, C lfo (t) is the oscillating signal and C range is a maximum authorized value for C b (t) and C lfo (t).