Patent ID: 9256079
Filing Date: 2016-02-09
CPC Classification: G01V,G02B

Claim Text:
1. A method of using a polarized beam director for separately directing first and second polarized incident light beams having respectively different planes of polarization from an incident beam path, wherein the polarized beam director comprises: a corner cube structure comprising first, second and third walls occupying a mutually perpendicular relationship with respect to one another and intersecting at one of an actual or virtual corner, the first wall comprises a polarized beam splitter which has polarization characteristics which pass the first incident light beam and which reflect the second incident light beam, and the first, second and third walls reflect the second incident light beam; and wherein the method comprises: impinging the first and second incident light beams on the first wall of the corner cube structure from the incident beam path; passing the first light beam through the beam splitter of the first wall and into a delivery beam path which is separate from the incident beam path; and reflecting the second light beam from the first, second and third walls and into a diverted beam path which is separate from the incident beam path and the delivery beam path.