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CGH Null-test Design and Fabrication for Off-axis Aspherical Mirror Tests

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Abstract

A null-lens based on Computer Generated Hologram is designed to test the primary mirror of GAIA telescope. The null-test has multiple-zones to achieve simultaneous self-alignment and wavefront verification. The RMS wavefront error is estimated to 7.33 nm.

© 2006 Optical Society of America

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