Abstract
Interferometric testing of tight tolerance optics commonly requires correction for the errors introduced into the system by the reference surface (commonly referred to as a 'transmission sphere' in commercially available Fizeau phase measuring interferometers (PMIs)). The process of subtracting the reference surface errors from the measured wavefront is commonly, if somewhat misleadingly, referred to as 'absolute testing'. Absolute testing of flats was discussed at the 1992 Optical fabrication and Testing workshop. Here we consider spherical optics.
© 1994 Optical Society of America
PDF ArticleMore Like This
Lars A. Selberg
OWB3 Optical Fabrication and Testing (OF&T) 1994
Chris J. Evans
JThD4 Optical Fabrication and Testing (OF&T) 1994
Katherine Creath and James C. Wyant
OThA2 Optical Fabrication and Testing (OF&T) 1990