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Main Title: The photometry of hollow light guides
Author(s): Rosemann, A.
Kloss, S.-H.
Müller, T.
Aydinli, Sirri
Kaase, Heinrich
Type: Article
Language Code: en
Abstract: Light-pipes described in this paper guide light along an axis allowing it to escape from its surface for illumination purposes. Light is coupled into them by a beamer luminaire. The performance of a hollow light guide very much depends on the quality of the materials used to guide the light. The luminous characteristics of these materials influence a light-pipe’s overall performance. The first section of this paper describes measurement techniques for light incidence resolved measurements on materials. Common co-ordinate systems for describing the geometry and a data format to store the data are shown. The second section of this paper deals with light-pipe goniophotometry. A goniophotometer for light-pipes has been constructed at the Technical University of Berlin. To evaluate the results measurements are compared to these from a real installation.
Issue Date: 2005
Date Available: 8-Jan-2019
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): photometry
hollow light guides
Journal Title: Lighting Research & Technology
Publisher: SAGE Publications
Publisher Place: Washington, DC
Volume: 37
Issue: 1
Publisher DOI: 10.1191/1365782805li129oa
Page Start: 60
Page End: 72
EISSN: 1477-0938
ISSN: 1477-1535
Notes: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
Appears in Collections:FG Lichttechnik » Publications

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