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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Metodologia de otimização de lentes para lâmpadas de LED / Lenses optimization methodology for LED lamps

Barbosa, José Luiz Ferraz 14 June 2013 (has links)
Submitted by Erika Demachki (erikademachki@gmail.com) on 2014-09-25T20:32:22Z No. of bitstreams: 3 Dissertacao_JLFB_VFinal.pdf: 18601269 bytes, checksum: ec6c9955a2f1d95120cab2f797232e97 (MD5) Capa Dissertacao_JLFB_VFinal.pdf: 4769532 bytes, checksum: 3d15c52d57be870999449e2a7b78fbb3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2014-09-26T11:57:17Z (GMT) No. of bitstreams: 3 Dissertacao_JLFB_VFinal.pdf: 18601269 bytes, checksum: ec6c9955a2f1d95120cab2f797232e97 (MD5) Capa Dissertacao_JLFB_VFinal.pdf: 4769532 bytes, checksum: 3d15c52d57be870999449e2a7b78fbb3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2014-09-26T11:57:17Z (GMT). No. of bitstreams: 3 Dissertacao_JLFB_VFinal.pdf: 18601269 bytes, checksum: ec6c9955a2f1d95120cab2f797232e97 (MD5) Capa Dissertacao_JLFB_VFinal.pdf: 4769532 bytes, checksum: 3d15c52d57be870999449e2a7b78fbb3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2013-06-14 / The purpose of this work is to present a methodology for optimizing the geometry of the Light Emitting Diode (LED) secondary lens, in non-imaging applications, which focuses on the distribution of illuminance on a target plane. The simulation of Ray Tracing is produced by stochastic method and the optimization process based on heuristic search interacts with Ray Tracing to nd the optimized parameters of the LED secondary lens geometry. / O propósito deste trabalho e apresentar uma metodologia para otimiza ção da geometria da lente secund ária de Light Emitting Diode (LED) para aplica ção em iluminação, tendo como enfoque a distribuição da iluminância sobre um plano alvo. A simulação do Ray Tracing e produzida através do m etodo estoc astico e o processo de otimização interage com o Ray Tracing através de um m étodo heur ístico na busca dos parâmetros otimizados da geometria da lente secundária do LED.

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