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Proceedings Paper

Plastic substrate hardening by PE-CVD
Author(s): Stefania Menichella; Carlo Misiano; Enrico Simonetti; L. De Carlo
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Paper Abstract

The usage of plastic substrates has known a big enhancement driven by ophthalmic applications, but a further spreading can be foreseen in higher technological fields too. As known, two drawbacks are outlined when using these substrate: low scratching resistance; high thermal expansion coefficient, thus bad compatibility with the optical coatings made of inorganic layers. The most widespread solution up to now is a hardening and mechanical matching lacquer coating by dipping, which is well accepted in ophthalmics, but cannot be utilized in precision optics due to its intrinsic thickness disuniformity. Recently similar layers have been realized by Plasma Enhanced Chemical Vapor Deposition. This paper describes Ce.Te.V.'s activities and results in setting up this coating by RF PE-CVD, aimed to both ophthalmics and precision optics. The two different functions (hardening and mechanical matching) and the performances of the coating-with special attention to scratch and thermal shock resistance-are examined. The experimental equipment and the optical and environmental characteristics are described.

Paper Details

Date Published: 7 September 1994
PDF: 6 pages
Proc. SPIE 2262, Optical Thin Films IV: New Developments, (7 September 1994); doi: 10.1117/12.185801
Show Author Affiliations
Stefania Menichella, Centro Tecnologie del Vuoto (Italy)
Carlo Misiano, Centro Tecnologie del Vuoto (Italy)
Enrico Simonetti, Centro Tecnologie del Vuoto (Italy)
L. De Carlo, Centro Tecnologie del Vuoto (Italy)

Published in SPIE Proceedings Vol. 2262:
Optical Thin Films IV: New Developments
James D. Rancourt, Editor(s)

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