V2EX diffuse light

Diffuse Light

Definition|释义

“漫射光 / 散射光”:指光线经过粗糙表面、雾气、云层或柔光材料等散射后,从多个方向较均匀地到达物体的光。特点是光线柔和、反差较小、阴影边缘不明显。
(注:diffuse 也可作动词表示“扩散、传播”,但此处为形容词短语。)

Pronunciation|发音

/dfjus lat/

Examples|例句

The room was filled with diffuse light from the window.
房间里充满了从窗户透进来的漫射光。

In the morning fog, the landscape appeared softer under diffuse light, making details look gentle and evenly lit.
在清晨的雾气中,景色在漫射光下显得更柔和,细节看起来温润且受光更均匀。

Etymology|词源

Diffuse 来自拉丁语 diffundere(向四处“倒出/散开”),由 **dis-**(分开、向四方)+ fundere(倾倒、流出)构成;因此 diffuse light 字面含义就是“向各处散开的光”,对应光学与摄影里“散射后变得柔和、方向更分散的光”。

Related Words|相关词

Literary Works|文学与著作例证

  • Eugene Hecht, Optics(《光学》):常用 diffuse light 讨论散射、漫反射与成像条件。
  • Max Born & Emil Wolf, Principles of Optics(《光学原理》):在光学理论语境中使用 diffuse light(或相关表述)讨论非定向/散射光场。
  • Fil Hunter, Steven Biver & Paul Fuqua, Light: Science & Magic(《光:科学与魔法》):摄影布光中频繁提到 diffuse light(柔光、漫射光)及其对阴影与质感的影响。
  • Ansel Adams, The Negative(《底片》):在暗房与曝光控制语境中讨论光的性质与扩散(含 diffuse light 等表述)。
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