Diamond Turning Large Optics

H. L. Gerth; R. E. Hewgley

doi:10.1117/12.955112

16 December 1976 Diamond Turning Large Optics

H. L. Gerth, R. E. Hewgley

Proceedings Volume 0093, Advances in Precision Machining of Optics; (1976) https://doi.org/10.1117/12.955112
Event: 20th Annual Technical Symposium, 1976, San Diego, United States

Abstract

The High-Energy Gas Laser Fusion Program requires several large optical elements containing aspheric surfaces. A fabrication process utilizing diamond turning for figuring has been chosen as the most feasible when considering cost and allowable. time for fabrication. To diamond turn optics of this size (80-inch diameter), a two-axis horizontal spindle, numerical control turning machine was chosen. Improvements in vibration control, tool path control, and size capability were needed to achieve the desired capability. This paper describes some basic criteria needed for diamond turning. In addition, the major modifications required to achieve these criteria in a machine tool are discussed.

Citation Download Citation

H. L. Gerth and R. E. Hewgley "Diamond Turning Large Optics", Proc. SPIE 0093, Advances in Precision Machining of Optics, (16 December 1976); https://doi.org/10.1117/12.955112

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