title: An analytical model for the illuminance distribution of a power LED.
abstract: Light-emitting diodes (LEDs) will play a major role in future indoor illumination systems. In general, the generalized Lambertian pattern is widely used as the radiation pattern of a single LED. In this letter, we show that the illuminance distribution due to this Lambertian pattern, when projected onto a horizontal surface such as a floor, can be well approximated by a Gaussian function.
authors.affiliation: Department of Electrical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands. h.m.yang@tue.nl
authors.forename: Hongming
authors.initials: H
authors.lastname: Yang
authors.forename: Jan W M
authors.initials: JW
authors.lastname: Bergmans
authors.forename: Tim C W
authors.initials: TC
authors.lastname: Schenk
authors.forename: Jean-Paul M G
authors.initials: JP
authors.lastname: Linnartz
authors.forename: Ronald
authors.initials: R
authors.lastname: Rietman