Abstract

Lockheed has developed a two-wavelength, simultaneous phase shifting interferometer that is being used as a truth sensor in the Eastman Kodak Active Optics System Demonstration (AOSD). The AOSD test bed consists of a 2.6 meter segmented primary mirror with a static center piece and 6 active petals of which one is currently in place. The petal surface is deformable as well as adjustable in tilt and piston. The Lockheed interferometer is being used to measure tilt, piston and surface figure for comparison with other instruments in the AOSD.

© 1992 Optical Society of America