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Measuring color quality of light sources

机译：测量光源的颜色质量

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The successful commercialization of solid-state lighting for general illumination will require an effective method to characterize the color quality of these sources. The distinctive spectral characteristics of solid-state lighting sources present both unique challenges and opportunities with regards to color quality. Color quality is difficult to define, much less measure. Several aspects of color quality, including color fidelity (rendering), chromatic discrimination, and general population preferences must be considered. In some instances, these factors are contradictory. For example, observers tend to prefer lamps that increase object color chroma (vividness), though such chroma increases are deviations from color fidelity. In addition to devising a way to balance the influence of these different dimensions of color quality, consideration must be given to ways of communicating color quality in a simple way, which permits comparison between products. At NIST we're approaching this problem by developing a computational method that takes inspiration from the Color Rendering Index (CRI), but incorporates other aspects of color quality. The output of this Color Quality Scale (CQS) is a composite score incorporating a lamp's ability to accurately render object colors, permit precise discrimination between different colors, and display object colors in a way that is visually pleasing to typical consumers. Visual experimentation will be vital to improve and validate this method, which was initially developed with colorimetric simulations. Preliminary experimentation has begun, focusing on the issues most relevant to the development of commercial standards for color quality.
机译：固态照明用于常规照明的成功商业化将需要一种有效的方法来表征这些光源的颜色质量。固态光源的独特光谱特性在色彩质量方面既面临着独特的挑战，也带来了机遇。颜色质量很难定义，更不用说度量了。必须考虑色彩质量的几个方面，包括色彩保真度（渲染），色差和总体总体偏好。在某些情况下，这些因素是矛盾的。例如，观察者倾向于偏爱增加物体颜色色度（鲜艳度）的灯，尽管这种色度增加是与颜色保真度的偏差。除了设计一种方法来平衡颜色质量的这些不同维度的影响之外，还必须考虑以一种简单的方式传达颜色质量的方法，该方法允许在产品之间进行比较。在NIST，我们正在通过开发一种计算方法来解决这个问题，该方法可以从显色指数（CRI）中汲取灵感，但又可以融合色彩质量的其他方面。该颜色质量等级（CQS）的输出是一个综合评分，该评分综合了灯泡的能力，可以准确地呈现对象颜色，允许对不同颜色进行精确区分，并以视觉上令人满意的方式显示对象颜色。视觉实验对于改进和验证此方法至关重要，该方法最初是通过比色模拟开发的。初步实验已经开始，重点放在与开发颜色质量商业标准最相关的问题上。

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