6 February 2001 Novel nonimaging lens for photodiode receivers with a prescribed angular response and maximum integrated sensitivity
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Proceedings Volume 4214, Optical Wireless Communications III; (2001) https://doi.org/10.1117/12.417500
Event: Information Technologies 2000, 2000, Boston, MA, United States
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.
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Pablo Benitez, Juan Carlos Minano, Maikel Hernandez, Kazutoshi Hirohashi, Satoru Toguchi, Masahisa Sakai, "Novel nonimaging lens for photodiode receivers with a prescribed angular response and maximum integrated sensitivity", Proc. SPIE 4214, Optical Wireless Communications III, (6 February 2001); doi: 10.1117/12.417500; https://doi.org/10.1117/12.417500
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