Outline of the contents: H=SMDj)s+
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1. Basic Interferometers for Optical Testing 7)It1i-
2. Phase-Shifting Interferometry v&/-&(+
3. Specialized Optical Tests N*)8L[7_;
4. Long Wavelength Interferometry =d4',[O
5. Testing of Aspheric Surfaces ^0?cyv\>LA
6. Measurement of Surface Microstructure Ty`=U>K|
7. Absolute Measurements !rmo*-=^=
8. Concluding Remarks