A demonstration of aspheric polishing with a full size stressed lap.

Details A demonstration of aspheric polishing with a full size stressed lap. A demonstration of aspheric polishing with a full size stressed lap.

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988vlti....1..363w&link_type=abstract

ESO Conference on Very Large Telescopes and their Instrumentation, Vol. 1, p. 363 - 372

Physics

Mirrors

Scientific paper

The authors present a new approach to generating and figuring aspheric surfaces which utilizes a full size stressed lap. The lap specifications are chosen to generate a specific amount of spherical aberration to which the polishing automatically converges. A lap has been constructed to grind and polish a 20 cm glass blank. This experiment serves as both a first successful test of the stressed lap concept and as a demonstration of a method for generating aspheric secondary mirrors in its own right.

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