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Precision cutting processes for manufacturing of optical components

: Weck, M.; Hennig, J.; Hilbing, R.


Kley, E.-B. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Lithographic and micromachining techniques for optical component fabrication : 29 -30 July 2001, San Diego, USA
Bellingham/Wash.: SPIE, 2001 (SPIE Proceedings Series 4440)
ISBN: 0-8194-4154-6
Conference on Lithographic and Micromachining Techniques for Optical Component Fabrication <2001, San Diego/Calif.>
Conference Paper
Fraunhofer IPT ()
ultra precision machining; diamond machining; fast tool servo system; nonrotationally symmetric surface; optical component; micro structure

The importance of complex optical components increases permantly. In the past most applications could be solved by spherical optics. Spherical optics can be manufactured by conventional and established grinding and polishing processes. In the last years aspherical and microstructured optical components became more and more important. These components can only partly be manufactured by conventional processes. One reason is the lack of dimensional accuracy after the polishing process. Precision cutting with diamond tools on ultraprecision machines offers the possibility to manufacture complex optical components in one step. Therefore both high surface quality and dimensional accuracy can be obtained. The ultra precision cutting is suitable for the manufacture of both moulds and optical components itself. In this paper different precision cutting processes and there possibilities and limitations are discussed. Furthermore different types of ultra precision machine tools and there main applications are introduced.