Technical Reports and Guides

CIE TN 014:2023(免費下載)

CIE TN 014:2023

CIE Technical Note“Example Luminance Measurement Setup for UGR

Full Description

Technical Report CIE 232:2019 specifies a supplement to the Unified Glare Rating (UGR) method to determine the glare source area in case the glare source has a non-uniform luminance. The method requires high dynamic range (HDR) luminance images of the glare source.

 

Authors:

•Vissenberg, M.C.J.M (Reporter), The Netherlands

•Embrechts, M, The Netherlands

•Ohno, Y., The Netherlands

•Klej, A., Germany

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CIE 251:2023

CIE 251:2023

LED Reference Spectrum for Photometer Calibration

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Full Description

CIE standard illuminant A was introduced in 1932 to represent typical tungsten-filament lighting in colorimetry, and for decades it has been used as a reference spectrum in photometer calibrations. In 2018, CIE published new LED illuminants in CIE 015:2018 Colorimetry, 4th Edition. Based on one of the new LED illuminants, this Technical Report publishes a recommendation for an LED reference spectrum, named "CIE reference spectrum L41", for photometer calibration that complements CIE standard illuminant A. Specifically, this document includes the tabulated data of CIE reference spectrum L41 and a quality metric for selection of white LEDs for physical LED standard sources. Information is provided about typical magnitudes of spectral mismatch errors with V()-filtered photometers in measurements of LEDs, as well as other types of light sources, when CIE reference spectrum L41 is used for photometer calibration instead of CIE standard illuminant A.

Product Details

Published: 01/01/2023

Number of Pages: 24

File Size: 1 file , 5 MB

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