title: Light curtain for 2D large-area object detection.
abstract: Fluorescent foils are used with silicon photodiodes for large-area detection of objects, when combined with lasers forming a light curtain. An object entering the detection area penetrates the light curtain and casts shadows onto the fluorescent foils. Using a simple mathematical algorithm, the position of the object is detected with high speed. The device is suitable for security applications and can be used as a touch input device for computers, gaming and presentations.
authors.affiliation: Institute for Microelectronics and Microsensors, JKU Linz, Altenbergerstrasse 69, 4040 Linz, Austria. petr.bartu@hotmail.com
authors.forename: Petr
authors.initials: P
authors.lastname: Bartu
authors.forename: Anton
authors.initials: A
authors.lastname: Neulinger
authors.forename: Bernhard
authors.initials: B
authors.lastname: Jakoby
authors.forename: Siegfried
authors.initials: S
authors.lastname: Bauer
authors.forename: Robert
authors.initials: R
authors.lastname: Koeppe
mesh_terms: D000465:Algorithms; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D010363:Pattern Recognition, Automated / Q000379:methods*; D010783:Photometry / Q000295:instrumentation*; D012666:Semiconductors