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单词 Optical thickness
释义

Optical thickness

中文百科

光深度 Optical depth

(重定向自Optical thickness)

光深度是透明度的测量,在定义上是辐射或光在传输路径上被散射或吸收的比率。为了让光深度更加形象化,可以想一想雾。在观测者和物体之间的雾会立刻使得你前方的光深度为零。当物体远离时,光深度将会增加,直到该物体远至不能被看见为止。

英语百科

Optical depth 光深度

(重定向自Optical thickness)

In physics, optical depth or optical thickness, is the natural logarithm of the ratio of incident to transmitted radiant power through a material, and spectral optical depth or spectral optical thickness is the natural logarithm of the ratio of incident to transmitted spectral radiant power through a material. Optical depth is dimensionless, and in particular is not a length, though it is a monotonically increasing function of path length, and approaches zero as the path length approaches zero. The use of the term "optical density" for optical depth is discouraged.

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更新时间:2025/6/20 3:30:25