Ion Figuring of Light-Weighted Aspherical Mirrors

High accuracy surface figuring of light-weighted aspherical optical mirrors using conventional polishingtechniques becomes increasingly difficult with size as problems such as tool footprint, edge turndown become severe. Hence, a non-contact polishing process called “ion figuring” was evolved where...

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Bibliographic Details
Published inJournal of optics (New Delhi) Vol. 37; no. 4; pp. 115 - 121
Main Authors Rao, M. V. Hanumantha, Venkateswaran, R., Mahale, Nikhil, Ravi, V. C., Singh, Satraj, Sriram, K. V., Chakraborty, P., Nagendra, C. L.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.12.2008
Subjects
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
aspheric surface
Ion figuring
non-contact polishing
light-weighted mirror
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Summary:High accuracy surface figuring of light-weighted aspherical optical mirrors using conventional polishingtechniques becomes increasingly difficult with size as problems such as tool footprint, edge turndown become severe. Hence, a non-contact polishing process called “ion figuring” was evolved where in material removal is done by energetic ion bombardment. In this paper the development of an ion figuring system based on ion beam sputtering process shall be described and demonstrated with a few examples.
ISSN:0972-8821
0974-6900
DOI:10.1007/BF03354846