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Proceedings Paper

Reactive low-voltage ion plating of optical coatings on ophthalmic lenses
Author(s): K. Balasubramanian; Jeff Richmond; X. Q. Hu; Karl H. Guenther
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Paper Abstract

Reactive low voltage ion plating (RLVIP) produces dense and hard coatings even on unheated substrates. These qualities are highly desirable for coating of plastic lenses. However, the thermal expansion coefficient of these dense coatings is much lower than that of plastic substrates. Hence, even a moderate temperature rise during deposition puts the coatings under extreme compressive stress because of the subsequent shrinking of the substrate during cool down. We report our experience and encouraging results with this coating process for the antireflection coating of ophthalmic lenses.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1529, Ophthalmic Lens Design and Fabrication, (1 December 1991); doi: 10.1117/12.50484
Show Author Affiliations
K. Balasubramanian, CREOL/Univ. of Central Florida (United States)
Jeff Richmond, CREOL/Univ. of Central Florida (United States)
X. Q. Hu, CREOL/Univ. of Central Florida (United States)
Karl H. Guenther, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 1529:
Ophthalmic Lens Design and Fabrication
Colin M. Perrott, Editor(s)

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