Patent ID: 6424412
Filing Date: 2002-07-23
Classification: G01B,G02B,H01S,H04N

Abstract:
A system for detecting deviations of a component beam from an axis, said component beam associated with plural beams comprising:first means for automatically selectively isolating individual component beams from said plural beams and providing each of said individual component beams as output in response thereto, said first means including means for redirecting a sample of said plural beams and providing separated plural beams in response thereto, said individual component beams including a red beam, a green beam, and a blue beam; and second means for detecting misaligmnent relative to said axis of an individual component beam output from said first means, wherein said first means includes a color wheel for automatically selectively isolating said red, green, and or blue beams from said separated plural beams and providing an isolated component beam as output in response thereto.