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Optical Engineering

Aspherics: Precision Manufacturing By Vacuum Evaporation
Author(s): Jacques Angenieux; Andre Masson; Yvon Rouchouse
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Paper Abstract

The mastering of an industrial process to economically manufacture high precision aspherics is of utmost importance to obtain high performance infrared systems in the 3 to 5 and 10 to 13 i2m ranges. The research and the results of such a process are presented. Starting with a spherical surface very close to the desired profile, material is deposited by vacuum evaporation. Between the rotating lens and the source, one or several masks of specific shapes determines the aspherical curvature profile. Up to 50 um of material can thus be added to a sphere, with a precision of 0.1 µm.

Paper Details

Date Published: 1 June 1985
PDF: 3 pages
Opt. Eng. 24(3) 243499 doi: 10.1117/12.7973514
Published in: Optical Engineering Volume 24, Issue 3
Show Author Affiliations
Jacques Angenieux, Ets P. Angenieux (France)
Andre Masson, Ets P. Angenieux (France)
Yvon Rouchouse, Ets P. Angenieux (France)

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