Recent achievements in closing the loop in interferometric tool setting on a pneumo-precision MSG325 diamond-turning lathe

Peter R. Hall; David A. Page; John K. Myler

doi:10.1117/12.215585

2 August 1995 Recent achievements in closing the loop in interferometric tool setting on a pneumo-precision MSG325 diamond-turning lathe

Peter R. Hall, David A. Page, John K. Myler

Author Affiliations +

Proceedings Volume 2576, International Conference on Optical Fabrication and Testing; (1995) https://doi.org/10.1117/12.215585
Event: International Conferences on Optical Fabrication and Testing and Applications of Optical Holography, 1995, Tokyo, Japan

Abstract

On-machine laser unequal-path interferometry is used for setting the zero-point of the tool path in a single point diamond turning (SPDT) lathe. Experiments have been performed to determine the accuracy of such a technique, with the aim of using it to close the control loop. This would permit the complete tool-setting cycle to be performed under CNC control, and would result in significant man-power cost reductions. Also described is a novel form of optical system which uses the advantages of SPDT to create a zoom high power laser beam expander which is permanently aligned, has in-built reference planes and which has no moving dioptric components.

Citation Download Citation

Peter R. Hall, David A. Page, and John K. Myler "Recent achievements in closing the loop in interferometric tool setting on a pneumo-precision MSG325 diamond-turning lathe", Proc. SPIE 2576, International Conference on Optical Fabrication and Testing, (2 August 1995); https://doi.org/10.1117/12.215585

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