A new methodology to realise primary spectral radiance scale for supporting LED and SSL characterisation

Junqiang Zhou; Yuanjie Liu

doi:10.1117/12.2021562

22 June 2013 A new methodology to realise primary spectral radiance scale for supporting LED and SSL characterisation

Junqiang Zhou, Yuanjie Liu

Proceedings Volume 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013); 876936 (2013) https://doi.org/10.1117/12.2021562
Event: International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 2013, Singapore, Singapore

Abstract

A new methodology is developed for the realisation of primary spectral radiance scale for supporting high power LED and solid state lighting (SSL) characterisation. The scale is realised using a multi-wavelength filter radiometer (MWFR) and a variable high temperature black body (VTBB) as reference source. The MWFR contains 24 band pass filters with centre wavelengths from 250 nm to 1600 nm. It is used to determine the spectral radiance of the black body at different wavelengths so as to estimate the black body temperature and calculate the continuous spectral radiance of the black body. With the known continuous spectral radiance, the black body can be employed to calibrate the system response of a double grating monochromator and detectors. The calibrated values will be transferred to a set of standard lamps. These standard lamps will then be used to calibrate commercial spectroradiometers for measuring the spectral radiance of sample lamps such as LED and SSL. The results obtained will allow characterisation of the LED/SSL to be done with proper traceability to the primary standard.

Citation Download Citation

Junqiang Zhou and Yuanjie Liu "A new methodology to realise primary spectral radiance scale for supporting LED and SSL characterisation", Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 876936 (22 June 2013); https://doi.org/10.1117/12.2021562

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KEYWORDS

Black bodies

Calibration

Lamps

Sensors

Solid state lighting

Light emitting diodes

Monochromators

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