Patent ID: 7440192

Claim:
A system to produce orthogonal beams, the system comprising: a light source for generating a beam of laser light; a collimating lens producing a collimate beam of laser light; an optic to receive the collimated beam of laser light, reflecting and transmitting the collimated beam of laser light to produce at least three 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 three orthogonal beams of light being generally equal in power, wherein the optic comprises: a right angle triangular solid component, a first right angle trapezoidal solid component, wherein the right angle trapezoidal solid component is positioned to reflect one of said collimated parallel beams of laser light, and a second right angle trapezoidal solid component that is positioned adjacent to the right angle triangular solid component, the side adjacent to the right angle triangular solid component being coated with a partially reflective material both to reflect and to transmit the incoming portion of the collimated beam of laser light, wherein the right angle triangular solid component and the second right angle trapezoidal solid component have the same refraction index and wherein the second right angle trapezoidal solid component transmits without refraction the portion of the beam which is transmitted through the right angle triangular component; and printed aperture on the outer surfaces of said optic.