Interferometric testing of high-numerical-aperture convex surfaces.
Interferometric tests of convex surfaces for large-N.A. lens systems often present problems. We show how such surfaces can be tested with a reference surface having a much smaller N.A. by making use of the aplanatic imaging properties of a spherical surface.
Creath
K
K
Gilliand
Y A
YA
Hariharan
P
P