Int. J. Metrol. Qual. Eng.
Volume 6, Number 1, 2015
|Number of page(s)||5|
|Published online||23 February 2015|
Spectral and photopic studies for high intensity discharge (HID) lamps
National Institute for Standards (NIS), Photometry and Radiometry
Division Tersa St., El- Haram –
P.O. Box: 136 Code No.12211, Giza, Egypt
Accepted: 15 January 2015
Outdoor lighting sources such as High Intensity Discharge lamps (HID) are common in these days. This research is focusing on the relation between the spectral power distribution and luminous efficiency function V(λ), which describes the average spectral sensitivity of human visual perception of brightness. The most useable HID lamps inside Egyptian markets are high pressure mercury (HPM), high pressure sodium (HPS) and metal halide (MH). A set up based on single monochromator and integrating sphere for relative spectral power distribution and absolute luminous flux measurements are used, respectively. The accompanied standard uncertainties with the measurements are evaluated.
Key words: Outdoor sources / luminous efficiency function / spectral power distribution / Uncertainty
© EDP Sciences 2015
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