Hans Wolter (11 May 1911 in
Dramburg – 17 August 1978 in
Marburg) was a German physicist who designed an aplanatic system of grazing incidence mirrors that satisfied the Abbe sine condition (i.e. free of both spherical aberration and coma).
Wolter showed such a system could be produced using a combination of a
paraboloid with either a
hyperboloid or
ellipsoid secondary.
The three simplest designs are outlined and are known as
of types I, II and III.
External links
