Outline of the contents: guN4-gGDr<
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1. Basic Interferometers for Optical Testing go)p%}s
2. Phase-Shifting Interferometry 8dT'xuch
3. Specialized Optical Tests a!Yb1[
4. Long Wavelength Interferometry .BTx&AqU
5. Testing of Aspheric Surfaces |U[y_Y\a
6. Measurement of Surface Microstructure Pn TZ/|
7. Absolute Measurements o6j"OZcv
8. Concluding Remarks