Patent ID: 6825923
Filing Date: 2004-11-30
Classification: G01C

Abstract:
A laser alignment system comprising:at least first and second lasers disposed for generating at least first and second laser beams aligned substantially parallel to one another; and a target assembly comprising a light sensitive target cell operative for producing electrical signals indicative of locations at which one of said first and second laser beams impinges on said target cell, said target cell being disposed substantially in alignment with the first laser beam such that signals produced by the target cell in response to the first laser beam identify displacement data of the target cell relative to the first laser beam, the target assembly further including at least one mirror assembly having a first mirror disposed for reflecting the second laser beam and producing a first reflection of the second laser beam, the mirror assembly further comprising a first reflection means disposed for reflecting the first reflection of the second laser beam along a path substantially parallel to the first laser beam and onto the target cell, impingement of the second laser beam on the target cell providing data for identifying angular alignments of the target cell relative to the first and second laser beams.