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Proceedings Paper

Simulation and optimization of aspheric lenses for advanced small sensor heads of large numerical aperture
Author(s): Zhanping Xu; Bernhard O. Bundschuh; Ferdinand Klaus; Reinhold Vogt
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Paper Abstract

A fast and accurate optimization of an aspheric lens of large numerical aperture (ALLNA) is useful as a tool in optical simulation software packages. A series of analytical formulas is obtained from solving differential equations. An ALLNA with two aspheric surfaces and another one with a spherical surface and an aspheric surface are analytically optimized. A Monte Carlo method and a Newton-Raphson method are adapted to simulate an optical sensor consisting of a transmitting and a receiving sensor head. The transmission characteristics and other optical simulations from these two methods are in good agreement with each other as well as with experimental results. The optimized ALLNA with minimum power losses and minimum angle of divergence is significant for high performance optical collimator lens cap design. Optimization and simulation of ALLNA provides an important contribution to the design of advanced sensor heads and the development of optical range finders, e.g., the transmission characteristics are a crucial factor for sensor pre-amplifier circuitry design.

Paper Details

Date Published: 9 November 1994
PDF: 7 pages
Proc. SPIE 2247, Sensors and Control for Automation, (9 November 1994); doi: 10.1117/12.193953
Show Author Affiliations
Zhanping Xu, Univ. Siegen (Germany)
Bernhard O. Bundschuh, Univ. Siegen (Germany)
Ferdinand Klaus, Univ. Siegen (Germany)
Reinhold Vogt, Univ. Siegen (Germany)

Published in SPIE Proceedings Vol. 2247:
Sensors and Control for Automation
Markus Becker; R. W. Daniel; Otmar Loffeld, Editor(s)

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