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=== Daylight redirection === {{Main|Anidolic lighting}} * Laser cut acrylic panels have been used to redirect sunlight into a [[light tube#Light tube with reflective material|light pipe]] or tubular skylight and, from there, to spread it into a room.<ref>Yeang, Ken. [http://www.trhamzahyeang.com/features/img/Light%20pipe%20paper.pdf Light Pipes: An Innovative Design Device for Bringing Natural Daylight and Illumination into Buildings with Deep Floor Plan] {{webarchive|url=https://web.archive.org/web/20090305001322/http://www.trhamzahyeang.com/features/img/Light%20pipe%20paper.pdf |date=2009-03-05}}, Nomination for the Far East Economic Review Asian Innovation Awards 2003</ref> Their developers Veronica Garcia Hansen, [[Ken Yeang]], and Ian Edmonds were awarded the [[Far Eastern Economic Review#Awards presented by the Review|Far East Economic Review Innovation Award]] in bronze for this technology in 2003.<ref>{{cite web|website = Fresh Innovators|url = http://www.scienceinpublic.com/freshinnovators/2005/Veronica/veronicagarciahansen.htm |title = Lighting up your workplace |archiveurl=https://web.archive.org/web/20050702103235/http://www.scienceinpublic.com/freshinnovators/2005/Veronica/veronicagarciahansen.htm |archive-date=2 July 2005|date = May 9, 2005}}</ref><ref>[http://www.worldcities.com.sg/speaker3.htm#kenneth01 Kenneth Yeang] {{webarchive|url=https://web.archive.org/web/20080925033953/http://www.worldcities.com.sg/speaker3.htm |date=2008-09-25}}, World Cities Summit 2008, June 23β25, 2008, Singapore</ref> * Attenuation being quite strong for distances over one meter (more than 90% intensity loss for a 3000 K source),<ref>{{cite journal |doi=10.1582/LEUKOS.01.04.003 |first1=Victor |last1=Gerchikov |first2=Michele |last2=Mossman |first3=Lorne |last3=Whitehead |year=2005 |title=Modeling Attenuation versus Length in Practical Light Guides |journal=LEUKOS |volume=1 |issue=4 |pages=47β59 |s2cid=220306943}}</ref> acrylic broadband light guides are then dedicated mostly to decorative uses. * Pairs of acrylic sheets with a layer of microreplicated prisms between the sheets can have reflective and refractive properties that let them redirect part of incoming sunlight in dependence on its [[angle of incidence (optics)|angle of incidence]]. Such panels act as miniature [[architectural light shelf|light shelves]]. Such panels have been commercialized for purposes of [[Daylighting (architecture)|daylighting]], to be used as a [[window]] or a [[canopy (building)|canopy]] such that sunlight descending from the sky is directed to the ceiling or into the room rather than to the floor. This can lead to a higher illumination of the back part of a room, in particular when combined with a white ceiling, while having a slight impact on the view to the outside compared to normal glazing.<ref>[http://www.bendinglight.co.uk/assets/pdf_downloads/How_Serraglaze_Works.pdf How Serraglaze works] {{webarchive|url=https://web.archive.org/web/20090305001319/http://www.bendinglight.co.uk/assets/pdf_downloads/How_Serraglaze_Works.pdf |date=2009-03-05}}. Bendinglight.co.uk. Retrieved 2012-05-09.</ref><ref>[http://www.bdonline.co.uk/story.asp?sectioncode=453&storycode=3088579&c=1 Glaze of light] {{webarchive|url=https://web.archive.org/web/20090110100911/http://www.bdonline.co.uk/story.asp?sectioncode=453&storycode=3088579&c=1 |date=2009-01-10}}, Building Design Online, June 8, 2007</ref>
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