A simple null test for a Schmidt camera aspheric corrector

Details A simple null test for a Schmidt camera aspheric corrector A simple null test for a Schmidt camera aspheric corrector

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.192..455w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 192, Aug. 1980, p. 455-466.

Computer Science

Performance

1

Asphericity, Mirrors, Optical Correction Procedure, Performance Tests, Schmidt Cameras, Spectroscopic Telescopes, Diffraction Limited Cameras, Ray Tracing, Tables (Data)

Scientific paper

Existing accurate optical tests of the aspheric corrector of a Schmidt camera generally require auxiliary optics of good quality and large diameter. The test described, which is believed to be original, requires only the spherical mirror which is to be used in the camera, and is accurate to the diffraction limit if the camera is not so fast that the profile of the corrector requires a term in r to the 6th power in addition to the usual terms in r-squared and r to the 4th power. Another attractive feature of the test is that it may be carried out in yellow or red light although the corrector is to be figured for use in the blue or ultraviolet spectrum.

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