Skylight: a hollow prismatic CPC

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dc.book.titleProceedings of the SPIE
dc.contributor.authorGarcía Fernández, Berta
dc.contributor.authorGarcía Botella, Angel
dc.contributor.authorÁlvarez Fernández-Balbuena, Antonio
dc.contributor.authorVázquez Molini, Daniel
dc.contributor.authorBernabéu Martínez, Eusebio
dc.contributor.editorWinston, Roland
dc.contributor.editorGordon, Jeffrey M.
dc.date.accessioned2024-02-12T18:32:33Z
dc.date.available2024-02-12T18:32:33Z
dc.date.issued2009-08-21
dc.descriptionEvent: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States. © (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE).
dc.description.abstractMany applications involve the use of a compound parabolic concentrator (CPC) like, natural lighting, thermal applications, optics for illuminators, optical fibre coupling and solar energy. The use of a CPC in reverse mode for natural lighting gives the chance to use it as a lighting skylight in ceilings because light output is controlled inside the design angle, on the contrary having a low flux transfer ratio because of the reduced area of the entrance pupil regarding exit pupil. The authors propose an innovative 3D hollow prismatic CPC (HPCPC) made of a dielectric material, which has a high efficiency comparing it with aluminium CPC. The basic idea is to use a hollow prismatic light guide with CPC shape. This paper reports 2D, 3D design and numerical analysis by raytracing software, also experimental results are shown. The system works almost like a true CPC when light enters through standard entrance pupil and also collect light that enters outside entrance pupil. Performance and efficiency of the prismatic CPC is in average 300% higher than standard aluminium CPC for collimated light in a range from 0º to 85º. A prototype has been developed and tested.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Óptica y Optometría
dc.description.refereedTRUE
dc.description.statuspub
dc.identifier.citationFernandez-Balbuena, A. A., Vázquez-Moliní, D., Garcia-Fernandez, B., Garcia-Botella, A., & Bernabeu, E. (2009, August). Skylight: a hollow prismatic CPC. In Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI (Vol. 7423, pp. 239-250). SPIE.
dc.identifier.doi10.1117/12.825818
dc.identifier.issn0277-786X
dc.identifier.officialurlhttps://doi.org/10.1117/12.825818
dc.identifier.relatedurlhttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/7423/74230T/Skylight-a-hollow-prismatic-CPC/10.1117/12.825818.short
dc.identifier.urihttps://hdl.handle.net/20.500.14352/101327
dc.issue.number74230T
dc.language.isoeng
dc.page.final12
dc.page.initial1
dc.page.total12
dc.publisherSPIE
dc.relation.ispartofseriesNonimaging Optics: Efficient Design for Illumination and Solar Concentration VI
dc.rights.accessRightsopen access
dc.subject.cdu535.1
dc.subject.cdu628.9
dc.subject.cdu681.7.03
dc.subject.keywordcompound parabolic concentrator
dc.subject.keywordnonimaging optics
dc.subject.keywordnatural lighting
dc.subject.keywordprismatic film
dc.subject.keyworddaylight
dc.subject.keywordhollow light guide
dc.subject.ucmÓptica (Física)
dc.subject.ucmFísica de materiales
dc.subject.unesco2209.19 Óptica Física
dc.subject.unesco2209.11 Luz
dc.titleSkylight: a hollow prismatic CPC
dc.typebook part
dc.type.hasVersionVoR
dc.volume.number7423
dspace.entity.typePublication
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relation.isAuthorOfPublication304d36ea-328b-4b93-843f-a5f0da3323f8
relation.isAuthorOfPublication37745430-863e-41b2-94e9-eaffe06fdc53
relation.isAuthorOfPublication.latestForDiscovery66947707-bb8e-476d-8178-cd98a8796992
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