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Proceedings Paper

Novel nonimaging lens for photodiode receivers with a prescribed angular response and maximum integrated sensitivity
Author(s): Pablo Benitez; Juan Carlos Minano; Maikel Hernandez; Kazutoshi Hirohashi; Satoru Toguchi; Masahisa Sakai
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Paper Abstract

12 In this work we present a novel optical lens that can be designed to provide any specified angular sensitivity to a receiver, illuminating the sensitive area almost isotropically. This lens, which has been designed in the framework of nonimaging optics, consists in a single dielectric piece that encapsulates the receiver (as conventional epoxy packages of photodiodes), whose interface with air is an aspheric refractive surface. Several trial products have been manufactured with different angular sensitivities (linear response, cos-1(theta) and cos-2(theta) ). The experimental results have shown that the trial devices have the specified angular sensitivity with +/- 5% accuracy.

Paper Details

Date Published: 6 February 2001
PDF: 10 pages
Proc. SPIE 4214, Optical Wireless Communications III, (6 February 2001); doi: 10.1117/12.417500
Show Author Affiliations
Pablo Benitez, Univ. Politecnica de Madrid (Spain)
Juan Carlos Minano, Univ. Politecnica de Madrid (Spain)
Maikel Hernandez, Univ. Politecnica de Madrid (Spain)
Kazutoshi Hirohashi, HITS Laboratories, Inc. (Japan)
Satoru Toguchi, HITS Laboratories, Inc. (Japan)
Masahisa Sakai, HITS Laboratories, Inc. (Japan)

Published in SPIE Proceedings Vol. 4214:
Optical Wireless Communications III
Eric J. Korevaar, Editor(s)

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