Patent ID: 8056245

Claim:
An optical bench assembly, comprising: an optical bench structure; a first light source disposed within the optical bench structure and configured to generate a first light beam; a second light source disposed within the optical bench structure and configured to generate a second light beam; a first lens secured to the optical bench structure a spaced distance from the first light source for focusing the first light beam into a first collimated light beam; a second lens secured to the optical bench structure a spaced distance from the second light source for focusing the second light beam into a second collimated light beam; a first prism aligned with the first collimated light beam, the first prism rotatable about a first axis to generate a first ring of possible angular directions of light with the first collimated light beam; and a second prism aligned with the second collimated light beam, the second prism rotatable about a second axis to generate a second ring of possible angular directions of light with the second collimated light beam, the first and second prisms secured to the optical bench structure when a first angle on the first ring aligns with a second angle on the second ring.