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LED photoelectric performance testing
Luminous flux
Method 1 Integrating sphere spectral radiometer
Reference standards:
CIE84:1989. The Measurement of Luminous Flux.
IESNA LM79-08 Electrical and Photometric Measurements of Solid-State Lighting Products
Method 2 Distribution photometer
Reference standards:
CIE84:1989. The Measurement of Luminous Flux.
IESNA LM79-08 Electrical and Photometric Measurements of Solid-State Lighting Products
Test items:
Beam angle | band light | through peak wavelength | color coordinate | light efficiency | spectral power distribution | lumen maintenance | color tolerance | luminous flux | chromatic aberration | color rendering index
Light intensity distribution (distribution curve flux)
Method: Distributed photometer
Reference standards:
IESNA LM79-08 Electrical and Photometric Measurements of Solid-State Lighting Products
CIE 121:1998 The Photometry and Goniophotometry of Luminaires
CIE 043:1979 Photometry of floodlights
GB/T 9468-2008 General Requirements for the Photometry and Goniophotometry of Luminaires
GB/T 7002:2008 Photometry of Floodlight
Test items:
Luminaire energy efficiency | luminance distribution | proposed curve of indoor luminaires | total luminous flux | plane equiillumination curve | rectangular equiillumination curve | beam angle | luminance limit curve | equiillumination distribution curve | circular band optical flux | circular equiillumination curve
Chroma test
Method 1 Integrating sphere spectral radiometer
Reference standards:
IESNA LM79-08 Electrical and Photometric Measurements of Solid-State Lighting Products
CIElS:2004 Chromaticity
CIE13.3:1995 Method of Measuring and Specifying Color Rendering Properties of Light Sources
Method 2 Distributed spectral radiometer
Reference standards:
IESNA LM79-08 Electrical and Photometric Measurements of Solid-State Lighting Products
CIElS:2004 Chromaticity
CIE13.3:1995 Method of Measuring and Specifying Color Rendering Properties of Light Sources
Test items:
Average color inhomogeneity | color width capacity (color tolerance) | color rendering index | color coordinate | color space inhomogeneity | maximum color inhomogeneity | correlation color temperature | color tolerance drift | color tolerance
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