Lighting apparatus and method for controlling brightness and...

Details Lighting apparatus and method for controlling brightness and... Lighting apparatus and method for controlling brightness and...

G - Physics

05

D

G05D 25/02 (2006.01) G02F 1/13357 (2006.01) H05B 33/08 (2006.01) H05B 37/02 (2006.01)

Patent

CA 2551649

A lighting apparatus emitting polychromatic light comprising light of at least two light-channels with different colors, wherein each light-channel is controlled by one modified pulse-width-modulated signal (modified PWM-signal), and each modified PWM-signal results from the modulation of one color- pulse-width-modulated signal (color-PWM-signal) with an intensity-pulse-width-modulated signal (intensity-PWM-signal) in order to control the brightness and color location of the polychromatic light.

Il s'agit d'un appareil d'éclairage qui émet une lumière polychromatique constituée d'au moins deux canaux lumineux de couleurs différentes. Chaque canal lumineux est commandé par un signal de modulation d'impulsions en durée (PWM) modifié. Chaque signal PWM modifié résulte de la modulation d'un signal de modulation d'impulsions en durée (PWM) couleur avec un signal de modulation d'impulsions en durée (PWM) d'intensité, afin de commander la luminosité et l'emplacement des couleurs de la lumière polychromatique.

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