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Proceedings Paper

Lens design with suppressed first order reflections
Author(s): Jan Buchheister; Christopher Weth
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Paper Abstract

Optical systems with a reflected light condition, e.g. microscopes with reflected light illumination or fundus cameras, need to have weak first order ghosts or even to be completely free from them. Sequential ray tracing can be used to control optical performance and reflections on a ray basis during optimization. This is significantly more efficient in computation time and convergence than the usual approaches with non-sequential ray tracing or reconfigured optical systems to cover all critical ghosts. An ophthalmic lens for a fundus camera was designed with first order reflections stripped out by applying sequential ray tracing. The merit-function only had to be completed under certain conditions guaranteeing the absence of any reflections. No additional reconfiguration of the optical system in the design software was necessary.

Paper Details

Date Published: 9 September 2010
PDF: 9 pages
Proc. SPIE 7652, International Optical Design Conference 2010, 76522V (9 September 2010); doi: 10.1117/12.868917
Show Author Affiliations
Jan Buchheister, Carl Zeiss AG (Germany)
Christopher Weth, Carl Zeiss AG (Germany)

Published in SPIE Proceedings Vol. 7652:
International Optical Design Conference 2010
Julie Bentley; Anurag Gupta; Richard N. Youngworth, Editor(s)

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