Diamond turning of silicon optics

Philip Michael Parr-Burman; Paul Shore

doi:10.1117/12.246793

19 August 1996 Diamond turning of silicon optics

Philip Michael Parr-Burman, Paul Shore

Proceedings Volume 2775, Specification, Production, and Testing of Optical Components and Systems; (1996) https://doi.org/10.1117/12.246793
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

In the 3 to 5 micron waveband the material that gives the best ratio of optical power to density is silicon. Optics using this material would tend to be the lightest possible. Unfortunately it has high dispersion so that optical systems need achromatizing. A diffractive surface can achromatize a lens without having the disadvantages of an extra element that will have both extra mass and will lead to tight tolerances between the two halves of the doublet. Silicon is a notoriously difficult material to a machine, however recent trials have enabled this to be carried out satisfactorily on a lens of 125 mm diameter.

Citation Download Citation

Philip Michael Parr-Burman and Paul Shore "Diamond turning of silicon optics", Proc. SPIE 2775, Specification, Production, and Testing of Optical Components and Systems, (19 August 1996); https://doi.org/10.1117/12.246793

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