Patent ID: 7719766

Claim:
A light source comprising: a light circuit configured to process light and propagate light, wherein the light circuit propagates light using light guides, the light circuit comprising: an integrated light processing element formed on the substrate, the light processing element configured to process light from the lighting element, the light processing element comprising: a first coupler having a first input and a second input, the first coupler to combine a first light beam at the first input and a second light beam at the second input into a first combined light beam at a first output; a second coupler having a third input and a fourth input coupled to the first coupler, the second coupler to combine a third light beam at the third input and the first combined light beam at the fourth input into a second combined light beam at a second output; a first modulator coupled between a first lighting element and the first input of the first coupler, the first modulator configured to selectively block a transmission of the first light beam; a second modulator coupled between a second lighting element and the second input of the first coupler, the second modulator configured to selectively block a transmission of the second light beam; and a third modulator coupled between a third lighting element and the third input of the second coupler, the third modulator configured to selectively block a transmission of the third light beam; an integrated waveguide formed on the substrate, the waveguide to propagate light from the lighting element to the light processing element; and a lighting element optically coupled to the light circuit, the lighting element to provide multiple colors of light.