Outline of the contents: M$9?{8m
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1. Basic Interferometers for Optical Testing m=hlim;P,
2. Phase-Shifting Interferometry R8*z}xy{
3. Specialized Optical Tests N'8u}WO
4. Long Wavelength Interferometry ?51Y&gOEZ
5. Testing of Aspheric Surfaces /.{q2]
6. Measurement of Surface Microstructure +4N7 _Y
7. Absolute Measurements =41g9UQ
8. Concluding Remarks