Outline of the contents: E\QSU88^
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1. Basic Interferometers for Optical Testing LNj|t)O v
2. Phase-Shifting Interferometry 3vy5JTCz~
3. Specialized Optical Tests @sVBG']p
4. Long Wavelength Interferometry h7g9:10
5. Testing of Aspheric Surfaces <#c2Hg%jh
6. Measurement of Surface Microstructure Z*JZUbo-Q
7. Absolute Measurements ?)9 6YX'
8. Concluding Remarks