If you know the red, green, and blue components of the light that correspond to maximum reflectance, then you know the color of the object. Their sensor uses a four-lead RGB LED, but we suppose a ...

[Fjord Carver] brings together an RGB LED and CdS Photoresistor to make a color sensor. Those Cadmium Sulfide lights sensors usually have a very wide swing of resistance when exposed to varying ...

Sony has announced a new “next-generation display system” based upon a “high density LED backlight” with individual control over the red, green and blue primary colors. The new display ...

Some premium PC keyboards feature a more limited form of backlighting—LEDs that shine through and around each key—in one color, typically white, red, blue, or green. Changeable RGB lighting ...