Abstract

The method FAUST (Fabrication of Aspherical Ultraprecise Surfaces using a Tube) has been described in a separate paper [Fäh95]: a modified curve generator, which uses a tubular element with a non-circular cross-section, applies loose abrasive ductile grinding with subsequent bowl feed polishing and is employed for the generation of rotationally symmetric optical surfaces. In this paper we apply FAUST for the generation of rotationally symmetric surfaces which have a longitudinal section in the shape of a conic section (in the following these surfaces will be referred to as conic surfaces [Mal92]). Figure 1 shows a vertical cross-section of the production and defines two systems of coordinates, one with respect to the workpiece (r-,y- and f-axes), the other to the tube (x-, y- and z- axes).

© 1996 Optical Society of America