Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/15680

TitleDesign, simulation and fabrication of optical filters for narrow band imaging in endoscopic capsules
Author(s)Silva, M. F.
Ferreira, D. S.
Ribeiro, J. F.
Gonçalves, L. M.
Carmo, João Paulo Pereira
Silva, C. A.
Minas, Graça
Correia, J. H.
KeywordsOptical filters
Endoscopic capsules
Narrow band imaging
Issue date22-Jun-2011
PublisherVestfold University College
Abstract(s)This paper presents the design, simulation and fabrication of two optical filters that could be integrated in endoscopic capsules (EC) to perform narrow band imaging (NBI) analysis. The thin-film optical filters were designed for two specific spectral regions (blue, centered at 415 nm, and green, centered at 540 nm) and will be placed on top of current EC white light emitting diodes (LEDs). The filters are composed by 7 thin-film layers of titanium dioxide (TiO2) and silicon dioxide (SiO2) and will be deposited using RF-sputtering technique. The integration of NBI functions in EC represents an important clinical and technological advance, since it will improve the EC diagnostic functions, e.g. enhanced visibility of capillaries and veins for the diagnosis of dysplasia, as a complement to the current capsule vision based in white light.
TypeAbstract
URIhttp://hdl.handle.net/1822/15680
ISBN978-82-7860-224-9
Publisher versionhttp://www.mme2011.org/proceedings.htm
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CAlg - Artigos em livros de atas/Papers in proceedings
CAlg - Resumos em livros de atas/Abstracts in proceedings
DEI - Artigos em atas de congressos internacionais

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