Outline of the contents: 'aJgLws*w
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1. Basic Interferometers for Optical Testing Lf}8qB#Y
2. Phase-Shifting Interferometry AG"l1wz
3. Specialized Optical Tests W+>wu%[L
4. Long Wavelength Interferometry b=##A
5. Testing of Aspheric Surfaces dFW=9ru+MQ
6. Measurement of Surface Microstructure _v5t<_^N
7. Absolute Measurements ,+/zH'U}
8. Concluding Remarks