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Proceedings Paper

Infrared Lens Centering Machine
Author(s): Michael S. Petty; Michael J. Brookfield
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Paper Abstract

The design and development of an infrared lens centering machine is described. The device works in transmission mode so that access is not required to the rear surface of the test component. Although developed for the centration of germanium lenses it works equally in the visible and also with other IR materials, allowing centration accuracies better than 2 arc sec to be achieved. A theoretical analysis is given and an expression for the noise equivalent decentration (NED) is derived. A design example is given followed by a calculation of expected performance. The method of discriminating between front and rear surfaces is described.

Paper Details

Date Published: 1 May 1986
PDF: 9 pages
Proc. SPIE 0590, Infrared Technology and Applications, (1 May 1986); doi: 10.1117/12.951974
Show Author Affiliations
Michael S. Petty, Vinten Scientific Systems Ltd. (England)
Michael J. Brookfield, Consultants (England)

Published in SPIE Proceedings Vol. 0590:
Infrared Technology and Applications
Lionel R. Baker; Andre Masson, Editor(s)

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