Performance characterisations were carried out before and after a modification to the optics of the Condor Instruments’ ActTrust light and activity data loggers to improve the spectral performance for measuring melanopic-weighted irradiance in non-visual studies. The results confirm the intended improvement, so that the device provides the best-known single-sensor match to the melanopic response. In addition, the device includes a separate sensor which remained well-matched for illuminance logging.
Price, L.L.A. and Lyachev, A., 2017. Research Note: Modification of a personal dosimetry device for logging melanopic irradiance. Lighting Research & Technology, p.1477153517695862.
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