Outline of the contents: B"Ttr+
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1. Basic Interferometers for Optical Testing ;<s0~B#9}
2. Phase-Shifting Interferometry F t;[>o
3. Specialized Optical Tests ds'7zxy/
4. Long Wavelength Interferometry (x8D ]a
5. Testing of Aspheric Surfaces =\x(Rs3
6. Measurement of Surface Microstructure 6F?U:N#<
7. Absolute Measurements h~.z[
8. Concluding Remarks