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All About LED Technology

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  • About Phosphor-converted near-infrared LED
    May 8, 2019 Liao Zhang

    About Phosphor-converted near-infrared LED

    Near-infrared spectroscopy history and principle Infrared light is a portion between the visible and microwave regions of the electromagnetic spectrum ranging from 700 nm to 1 mm. Infrared light was discovered by a German-British astronomer named William Herschel in 1800...

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  • Understanding CIE1931 and CIE 1976
    April 19, 2019 Daniel Han

    Understanding CIE1931 and CIE 1976

    CIE 1931 The CIE 1931 were created by the International Commission on Illumination (CIE) in 1931. And this is the first time human created an explanation between distributions of wavelengths in the visible spectrum, and colors can be perceived in...

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  • What is human centric lighting?
    April 19, 2019 Jasmine Yang

    What is human centric lighting?

    Scientific research indicates that light is one of the main driving forces of the circadian system, whether it is natural sunlight or artificial light sources, they are all can trigger a series of physiological rhythm reactions. As we all know,...

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  • Color Quality Scale: The definition of CQS
    April 19, 2019 Anthony Wan

    Color Quality Scale: The definition of CQS

    Background Generally, in order to meet the new demand of solid-state lighting (SSL) market and communicate with consumers about the color quality of lighting products, NIST (National Institute of Standards and Technology) has developed the light color quality meter, which...

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  • LED Lighting Technology in Plant Growth - Part.5
    April 3, 2018 Liao Zhang

    LED Lighting Technology in Plant Growth - Part.5

    PART V: “LIFETIME” Lifetime is a critical index for evaluating lighting fixtures. Conventional lighting fixtures are relatively inexpensive, of which the most widely adopted type is the fluorescent light, with only 3000 hours’ longevity. Compared to that, LED lights are...

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  • LED Lighting Technology in Plant Growth - Part.4
    October 27, 2017 Liao Zhang

    LED Lighting Technology in Plant Growth - Part.4

    PART IV: “COLD LIGHT SOURCE” Before LED lighting technology came to maturity, greenhouses were the major form of artificial plant factories. In greenhouses, temperature condition can be better controlled than plants grown outside, and sunlight is obtained during the day...

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