光深度 Optical depth
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。
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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