A calibrated integrating sphere setup to determine the infrared spectral radiant flux of high-intensity discharge lamps

A.J. Rijke, S. Nijdam, M. Haverlag, J.F.J. Janssen, J.J.A.M. Mullen, van der, G.M.W. Kroesen

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Abstract

A setup that aims to determine the infrared radiation fraction of the energy balance of high intensity discharge (HID) lamps has been designed, constructed and calibrated. It consists of a high-resolution integrating sphere that can cover a wide spectral range. New in this work is that the integrating sphere measurements can be used in the infrared part of the spectrum up to 10 µm and that we have calibrated the absolute intensity in that range. No calibration standards for spectral radiant flux are readily available in the infrared. Therefore, we have used a resistive heated platinum ribbon as absolute intensity reference. As a first test case, this new setup was used to determine the energy balance of a Philips CDM-T 70W/830 lamp, which is a type of metal halide HID lamp.
Original languageEnglish
Article number224007
Pages (from-to)224007-1/8
JournalJournal of Physics D: Applied Physics
Volume44
Issue number22
DOIs
Publication statusPublished - 2011

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