About Very Large Air-Bearing Tables (3M O.D.) For Micromachining Of Aspherical And Fresnel Mirrors.

H. Geppert

doi:10.1117/12.964481

3 November 1986 About Very Large Air-Bearing Tables (3M O.D.) For Micromachining Of Aspherical And Fresnel Mirrors.

H. Geppert

Proceedings Volume 0645, Optical Manufacturing, Testing and Aspheric Optics; (1986) https://doi.org/10.1117/12.964481
Event: 1986 Technical Symposium Southeast, 1986, Orlando, United States

Abstract

The production task for very large metal mirrors by micromachining has been addressed by various manufacturors on this SPIE forum. We as a machine tool builder have since years focussed on providing air-bearing turn-tables of diameters from lm up to 5m diameter. With less than 1μm departure from planarity and roundness these - tables are used not only for metrology but for machining of such large mirrors specifically.

Citation Download Citation

H. Geppert "About Very Large Air-Bearing Tables (3M O.D.) For Micromachining Of Aspherical And Fresnel Mirrors.", Proc. SPIE 0645, Optical Manufacturing, Testing and Aspheric Optics, (3 November 1986); https://doi.org/10.1117/12.964481

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