Development of an active-optics system for 27-inch thin mirror

Details Development of an active-optics system for 27-inch thin mirror Development of an active-optics system for 27-inch thin mirror

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.2003...88s&link_type=abstract

Proc. SPIE Vol. 2003, p. 88-97, Interferometry: Techniques and Analysis II, Osuk Y. Kwon; Gordon M. Brown; Malgorzata Kujawinska

Physics

Optics

Scientific paper

India is planning to build a large Optical/Infrared Telescope of 4 to 5 M in size. This telescope will adopt most of the features of the New Technology Telescope including active and adoptive optics corrections for achieving improved image quality. Keeping this in view a prototype active optics system for a 27 inch thin mirror is being developed at Indian Institute of Astrophysics. A new digital polarization shearing interferometer will be used for wavefront sensing. The paper describes in detail the procedure for wavefront sensing and the approach for the active correction.

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