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Proceedings Paper

Comparison of hard coatings on CR 39 ophthalmic lenses prepared by PECVD and other technologies
Author(s): Werner Klug; Rainer Gegenwart; Reinhard Herrmann; Roland Schneider
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Paper Abstract

Using a parallel plate reactor we optimized a PECVD process and coated Si02-films on CR 39 lenses with layer-thicknesses of 2,5 trn to 5 I_tIn. Besides high transmittance in the VIS-range we obtained refractive indices between n=1.46 and n=1.49 depending on the process parameters. We achieved deposition rates up to 30 A/s and thickness uniformities of 10 %. The abrasion resistance of these layers were tested with different inethodes and gave better results compared with techniques like lAD or lacquering.

Paper Details

Date Published: 1 August 1990
PDF: 7 pages
Proc. SPIE 1275, Hard Materials in Optics, (1 August 1990); doi: 10.1117/12.20525
Show Author Affiliations
Werner Klug, Leybold AG (Germany)
Rainer Gegenwart, Leybold AG (Germany)
Reinhard Herrmann, Leybold AG (Germany)
Roland Schneider, Leybold AG (Germany)

Published in SPIE Proceedings Vol. 1275:
Hard Materials in Optics
Carl-Gustaf Ribbing, Editor(s)

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