15 December 1978 Application Of Ronchi Interferometry To Testing Large Aperture Flat Mirrors
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Abstract
Utilizing the concept of Ronchi interferometry, a simple and inexpensive surface testing technique is described which allows the testing of large flat first surface optical mirrors. The system sensitivity is variable and responsive to a number of imaging defects introduced by imperfect mirrors. While easiest to use in a qualitative or semi-quantitative mode based on empirical measurements, the testing technique can be quantified to any required degree. When used qualitatively, the system functions best in a large volume testing environment as a screening comparator.
© (1978) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David E. Stoltzmann, "Application Of Ronchi Interferometry To Testing Large Aperture Flat Mirrors", Proc. SPIE 0153, Advances in Optical Metrology I, (15 December 1978); doi: 10.1117/12.938218; https://doi.org/10.1117/12.938218
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