Technology
Technology
Technology
Why high color rendering index (CRI)?
Color rendering index (CRI) demonstrates a quantitive measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a higher CRI are more desirable to human eyes for comfortness and vision protection. In high-end applications, such as medical lighting and cinematography, an extreme high CRI close to 100 is a must. Currently, the LED lighting is a indoubtable tendency to replace the low-efficient incandescent and the mercury-containing hazard influorescent lighting. However, a CRI over 80 are strictly demanded by the lighting industries to let this happen. LEDs with a lower CRI can only be used for low-end applications as the low color quality is believed to be harmful to humen eye's vision.
False color rendering effect
Why high-CRI phosphors?
Most LED packaging companies manufacture their high-CRI LEDs by mixing single-color phosphors together into optical silicone during the packaging stage. It can be a long dreary tuning process as the packaging engineers must react to the variation of each raw material among different lots. It is more desirable to have pre-mixed high-CRI phosphors during mass production for most of the LED manufacturers. It does not just save labor costs, but also eliminate the uncertainties caused by raw materials variation.
Fulight products offer:
To meet the LED industry's needs, Fulight has developed a special material mixing and processing technology to manufacture compact high-CRI phosphors for LED packagers. Our phosphors provide the following features/advantages:
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extremely high color consistency, only about ±0.001 variation in the 1931 CIE xy charts among different lots.
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easy to use & no addition of anti-settling agents are needed
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high packaging yield to confine all the xy dots into one single color bin
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high efficiency: ~5-10% higher than commercial similars or manufacturer's own mixing method