Patent ID: 7006298

Claim:
A system to produce orthogonal beams, the system comprising: a light source for generating a beam of laser light; a collimating lens and aperture arrangement producing at least three collimated, apertured parallel beams of laser light; and an optic to receive the three collimated parallel beams of laser light, reflecting and transmitting the three collimated parallel beams of laser light to produce at least four orthogonal beams of light, said orthogonal beams of light being oriented and positioned so as to appear to have originated at a single coincident point, and said four orthogonal beams of light being generally equal in power, wherein the power of two of said collimated, apertured, parallel beams of laser light is approximately one fourth of the total power of the apertured beams of laser light produced by said light source, and another of said collimated, apertured, parallel beams of laser light has approximately half the total power of the apertured beams of laser light produced by said light source.