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Shenzhen Northtest Testing Technology Co., Ltd. Northtest group Third party certification body

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Hot Line 400-800-6106
Northtest group · headquarters
Tel:0755-36995505 Q Q: Email:ntek@ntek.org.cn Blocks B, C and E of Fenda Science and Technology Creative Park, Xixiang, Baoan District, Shenzhen

LED module and light distribution curve detection

Basic introduction

LED light sources are used in the lighting field due to their low energy consumption and high light efficiency. With the advancement of technology, this type of lighting is deployed among users in multiple sectors. The lamps highlight the advantages of energy saving and have a long service life. The color of the light emitted by this type of lamps is highly variable. If the light distribution method is flexibly used, and the unique advantage of energy saving, it can be widely used in various types of environmental lighting. It is also due to the direct characteristics of LED light sources, how to design a scientific and reasonable light distribution on the lamp is very important. The luminous characteristics of the lamp are closely related to the lighting source, light transmission and reflection, and various types of dimming accessories. The final light distribution curve of the lamp has a huge impact. The choice of new light source lamps such as LED cannot be separated from the choice of light distribution curve.

Technical characteristics

Measure the spatial light intensity distribution curve, light intensity data, regional luminous flux, lamp efficiency, brightness distribution, utilization factor, and brightness limit curve of the lamp. Glare level, approximate curve, large allowable distance ratio, effective luminous angle, upward light flux, light flux, illuminance curve, light intensity curve and other photometric parameters

Chromaticity test

Method 1 integrating sphere spectroradiometer
Guideline:
IESNA LM79-08 "Electrical and Photometric Measurements of Solid-State Lighting Products"
CIE15: 2004 Chroma
CIE13.3: 1995 "Evaluation of the color rendering of light sources"
Method 2 distributed spectroradiometer
Guideline:
ESNA LM79-08 "Electrical and Photometric Measurements of Solid-State Lighting Products"
CIE15: 2004 Chroma
CIE13.3: 1995 "Evaluation of the color rendering of light sources"
Test items:
Average color unevenness
Color wide capacity (color tolerance)
Correlated color temperature
Color rendering index
Color shift
Color coordinates
Color tolerance
Color space non-uniformity

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