Specular gloss level

Japanese: 鏡面光沢度 - きょうめんこうたくど
Specular gloss level

… Glossiness is a quantitative expression of glossiness measured in some way. There are two types of glossiness: one related to the intensity of specularly reflected light and the other related to the clarity of specularly reflected light. The former includes specular glossiness and relative glossiness, while the latter includes clarity glossiness. Specular glossiness is a method of expressing glossiness using the reflection intensity in the direction of specular reflection, while relative glossiness uses the ratio of specularly reflected light intensity to diffuse light intensity. …

*Some of the terminology that refers to "specular gloss" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 光沢をなんらかの方法で計測して,量的に表示したものを光沢度と呼んでいる。光沢度には,主として正反射光の強度に関係したものと正反射光の鮮明度に関係したものがあり,前者には鏡面光沢度,対比光沢度,後者には鮮明度光沢度がある。鏡面光沢度とは,正反射方向での反射強度で光沢を表す方法,対比光沢度は,拡散光強度に対する正反射光強度の比を用いる方法である。…

※「鏡面光沢度」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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