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Proceedings Paper

Ultrasonic Precision Cleaning Of Optical Components Prior To And After Vacuum Coating
Author(s): K H Guenther; H Enssle
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Paper Abstract

The degree of cleanliness of optical surfaces to be coated with an interference film or a metallic layer by means of high vacuum deposition is of crucial importance to the coating result. Among the various possible cleaning technologies, ultrasonic precision cleaning has proved to be economical and technically efficient. This paper explains the type of cleaning requirements that can be satisfied with a modern ultrasonic cleaning plant. It is, for example possible to clean sensitive glasses (up to acid resistance class 52) sufficiently well so that they are suitable for coating. The influence of the polishing condition on the surfaces to be cleaned is discussed in detail. The limits of ultrasonic cleaning technology are also pointed out.

Paper Details

Date Published: 13 October 1986
PDF: 8 pages
Proc. SPIE 0652, Thin Film Technologies II, (13 October 1986); doi: 10.1117/12.938355
Show Author Affiliations
K H Guenther, Balzers AG (Liechtenstein)
H Enssle, Balzers AG (Liechtenstein)

Published in SPIE Proceedings Vol. 0652:
Thin Film Technologies II
J. Roland Jacobsson, Editor(s)

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