Patent ID: 6441895
Filing Date: 2002-08-27
Classification: G02B

Abstract:
An apparatus for precision alignment of a first component with a second component that is optimally aligned with a reference signal, comprising:a detector, positioned to receive the reference signal for measuring a characteristic of said reference signal in response to changes in the position of said first component; a mounting structure to which said first component is attached after said first component is aligned to the reference signal, said mounting structure being attached to a first motion stage that can be controlably moved to adjust the distance between said first and said second components; and a second motion stage, mounted on said first motion stage so as to move therewith, and attached to said first component, said second motion stage being controlably moveable in response to the changes in said characteristic determined by said detector such that a location of said first component is adjusted until said measured characteristic of said reference signal is optimized.