Outline of the contents: U2A
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1. Basic Interferometers for Optical Testing r`.N?
2. Phase-Shifting Interferometry 7oWMjw\
3. Specialized Optical Tests Ff%V1BH[
4. Long Wavelength Interferometry YT
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5. Testing of Aspheric Surfaces )muNfs m
6. Measurement of Surface Microstructure
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7. Absolute Measurements :#pdyJQ_
8. Concluding Remarks