Advanced interferometry at Carl Zeiss (Summary Only)

Details Advanced interferometry at Carl Zeiss (Summary Only) Advanced interferometry at Carl Zeiss (Summary Only)

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1720..452k&link_type=abstract

Proc. SPIE Vol. 1720, p. 452-455, Intl Symp on Optical Fabrication, Testing, and Surface Evaluation, Jumpei Tsujiuchi; Ed.

Astronomy and Astrophysics

Astronomy

Scientific paper

Research at Carl Zeiss has led to some innovative solutions in the field of optical test methods and interferometry. One example is the method of `direct measuring interferometry' (DMI), which was developed to overcome the problems of vibration and air turbulence when testing big astronomical primaries and is now the heart of the Carl Zeiss laser-interferometer DIRECT 100. Since DMI offers real-time capabilities for the wavefront evaluation, a built-in frame-memory can act as an `electronic hologram' and opens very elegant ways for in-situ correction of small residual errors, for easy aspherical testing, a very simple way of two- wavelength-interferometry, or a new discipline of time-resolved interferometry.

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