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Proceedings Paper

Understanding HID lamp properties
Author(s): Hermann Giese; Thomas Kruecken; U. Niemann; Folke C. Noertemann
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Paper Abstract

Light sources represent the input quantity for all design processes of projection and illumination systems and often there are features of the light source that are unsatisfying in the optical engineer's view. However, just as the design of an optical system may be understood and improved with the help of modeling tools, the development of a light source may also greatly benefit from physical models of the discharge. This paper tries to provide a basic understanding on how HID lamps work and how they can be modeled. This covers the major processes within the plasma discharge as well as the heat balance of the discharge within the burner and in particular the influence of the burner shape on the discharge behavior. Questions concerning the arc shape or the presence of a liquid melt at certain areas of the burner wall which are of vital interest to the optical designer will be addressed together with an assessment of the possibilities to influence these phenomena. Finally, a discussion on how and to which degree of reliability light technical properties can be obtained from a lamp model is presented.

Paper Details

Date Published: 16 August 2002
PDF: 21 pages
Proc. SPIE 4775, Modeling and Characterization of Light Sources, (16 August 2002); doi: 10.1117/12.479641
Show Author Affiliations
Hermann Giese, Philips Research Labs. (Germany)
Thomas Kruecken, Philips Research Labs. (Germany)
U. Niemann, Philips Research Labs. (Germany)
Folke C. Noertemann, Philips Research Labs. (Germany)

Published in SPIE Proceedings Vol. 4775:
Modeling and Characterization of Light Sources
C. Benjamin Wooley, Editor(s)

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