CIE Position Statement on Colour Quality Metrics, 2nd Edition
國際照明委員會（CIE）發布關於色彩品質指標的第二版立場聲明
CIE PS 002:2025
This CIE Position Statement is the second edition on this topic, updating its 2015 predecessor.
Key take-away points from this Position Statement are described below:
- The CIE General Colour Fidelity Index (Rf) was developed in 2017 to remedy previously identified technical problems with the CIE General Colour Rendering Index (Ra).
- At the time, the writers of CIE 224:2017 CIE 2017 Colour Fidelity Index for accurate scientific use recommended that the new metric be used for scientific purposes rather than industrial applications.
- The new metric, Rf, has been used extensively with no evidence emerging to contradict its use.
- The CIE recommends that the lighting community begin to adopt the CIE General Colour Fidelity Index, Rf, and to replace the CIE General Colour Rendering Index in relevant regulations, specifications, and standards.
- In the interests of an orderly transition, the CIE recommends that both metrics be reported in parallel until the new metric is widely established.
- A complete understanding of colour quality will require the development of additional new metrics for colour preference. This work is ongoing.
The full document of this CIE Position Statement can be viewed and downloaded here.
這份立場聲明是此主題的第二版，用以更新 2015 年發布的前一版。
重點摘要如下：
- CIE 通用色彩保真度指數(Rf) 於 2017 年開發，旨在修正先前 CIE 演色性指數(Ra)所發現的技術問題。
- 當時，《用於精確科學用途的 CIE 2017 色彩保真度指數》(CIE 2017 Colour Fidelity Index for accurate scientific use)標準的作者群，建議將此新指標用於科學目的，而非工業應用。
- 新指標 Rf 現已被廣泛使用，且未出現任何證據反駁其使用。
- CIE 建議照明領域開始採用 CIE 通用色彩保真度指數(Rf)，並在相關法規、規範和標準中取代 CIE 演色性指數(Ra)。
- 為了確保過渡順利，CIE 建議在新指標廣泛建立之前，應同時報告並列標示這兩個指標。
- 要對色彩品質有完整的理解，還需要開發針對色彩喜好度的額外新指標。這項工作目前正在進行中。
可點擊此處檢視並下載這份CIE立場聲明的完整文件。