?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F663%2F&rft.title=Non-imaging+Optics+for+LED-Lighting&rft.creator=Bouwe+van+den+Berg%2C+J.&rft.creator=Castro%2C+R.&rft.creator=Draisma%2C+J.&rft.creator=Evers%2C+J.&rft.creator=Hendriks%2C+M.&rft.creator=Krehel%2C+O.&rft.creator=Kryven%2C+I.&rft.creator=Mora%2C+K.&rft.creator=Szab%C3%B3%2C+B.&rft.creator=Zwiernik%2C+P.&rft.subject=None%2FOther&rft.subject=Technology%2FDevices&rft.description=In+this+report%2C+several+methods+are+investigated+to+rapidly+compute+the+light+intensity+function%2C+either+in+the+far+field+or+on+a+finite-distance+screen%2C+of+light+emanating+from+a+light+fixture+with+a+given+shape.+Different+shapes+are+considered%2C+namely+polygonal+and+(piecewise)+smooth.+In+the+first+case%2C+analytic+methods+are+sought+to+circumvent+the+use+of+Monte+Carlo+methods+and+ray-tracing+with+large+sample+size.+In+the+second+case%2C+refinements+of+the+Monte+Carlo+method+(notably+using+a+bootstrap+procedure)+are+devised+to+minimize+the+number+of+samples+needed+for+a+good+approximation+of+the+intensity+function.&rft.date=2012&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F663%2F1%2Fp4.pdf&rft.identifier=++Bouwe+van+den+Berg%2C+J.+and+Castro%2C+R.+and+Draisma%2C+J.+and+Evers%2C+J.+and+Hendriks%2C+M.+and+Krehel%2C+O.+and+Kryven%2C+I.+and+Mora%2C+K.+and+Szab%C3%B3%2C+B.+and+Zwiernik%2C+P.++(2012)+Non-imaging+Optics+for+LED-Lighting.++%5BStudy+Group+Report%5D+++++