A variable dispersion compensator spherical aberrations of different orders for review of the surfaces the form of a aspherical mirror and its use.

摘要

The invention relates to a compensator variable of the various orders of spherical aberration in order to verify the shape of the surface of a mirror aspherical. / p & & p & the compensator is essentially constituted by a fixed assembly of lenses f1, f2 and a movable assembly of lenses, f3, f4 and f5, the two assemblies having the same optical axis and being disposed at a distance from each other. / p & & p & in particular, the invention applies to the verification of a telescope mirror.