Patent ID: 8238030

Claim:
An apparatus comprising: first and second optical fibers that receive light from first and second light sources, respectively, said light from said first and second light sources being characterized by first and second wavelengths, respectively, said first wavelength being different from said second wavelength; a fixture that maintains said first and second optical fibers in a fixed relationship with respect to one another, light from each of said first and second optical fibers diverging from said fixture, said relationship being characterized by a spacing of said fibers on a face of said fixture; and a collimating lens that generates first and second collimated non-coincident light beams from said light leaving said face, wherein said collimating lens has a first focal length for light of said first wavelength and a second focal length for light of said second wavelength, wherein said first optical fiber terminates at a first distance from said collimating lens, wherein said first distance equals to said first focal length, wherein said second optical fiber terminates at a second distance from said collimating lens, wherein said second distance equals to said second focal length.