Coma of modified Gregorian and Cassegrainian mirror systems

Details Coma of modified Gregorian and Cassegrainian mirror systems Coma of modified Gregorian and Cassegrainian mirror systems

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976cwrj.nasa..885j&link_type=abstract

In its Collected Works of Robert T. Jones p 885-894 (SEE N76-19059 10-02)

Physics

Optics

Coma, Paraboloid Mirrors, Surface Geometry, Cassegrain Optics, Focusing, Optical Correction Procedure, Telescopes

Scientific paper

The equivalence of the classical Newtonian, Cassegrainian, and Gregorian mirror systems with respect to the first two Seidel aberrations is rederived by means of a simple congruence. The effects of arbitrary small modifications of the two mirror systems are then studied and general formulas are derived for the effects of such modifications on the spherical aberration and coma. Spherical aberration is corrected to the third order if the amount of glass removed from one surface is replaced at the corresponding zone of the other surface. Modifications in which one surface is made spherical while the other is adjusted to eliminate spherical aberration result in large increases of coma for systems having the usual amplifying ratios.

Affiliated with

Also associated with

No associations

Rating

Coma of modified Gregorian and Cassegrainian mirror systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Coma of modified Gregorian and Cassegrainian mirror systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coma of modified Gregorian and Cassegrainian mirror systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1297996