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定义白光LED的颜色特性

消耗积分:0 | 格式:rar | 大小:0.27 MB | 2017-06-21

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  定义白光LED的颜色特性

  颜色相关的温度(CCT)的光被定义为“对普朗克辐射体的感知颜色最接近的一个给定的刺激在同一亮度在特定的观察条件下的温度。”

  这是工程师的一个有用的定义,并帮助他们对白光LED的输出为“冷白这样的分组下,“中性白色”和“暖白”。消费者是在科学的定义不感兴趣,但对照明的LED供电照明用如此挑剔的国内业务,或工业厂房。

  本文解释了什么是CCT,并说明它是如何用于分类商业白光LED用于照明应用。最后,我们将研究固态照明制造商为什么要提供覆盖全系列CCT光源的设备。

  定义白光LED的颜色特性

  How white is white?

  Despite their obvious benefits over traditional lighting – such as efficacy, lifetime, and compactness – LEDs have faced some resistance to adoption for consumer lighting. Although the evidence is somewhat anecdotal, detractors claim that “harshness” of the light given off by a white LED-based lighting fixture is not as pleasant to live with as the “warmth” of an incandescent bulb.

  LED makers, keen to meet the aspiration of their customers, have worked hard to develop LEDs that more closely match the color (or “temperature”) of the illumination given out by traditional sources.

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