V2EX thick lens

Thick Lens

Definition / 释义

厚透镜:在几何光学中指厚度不可忽略的透镜(与“薄透镜”相对)。分析厚透镜时,不能把折射简化为发生在同一平面上,通常要用主平面(principal planes)等效焦距等概念来更准确描述成像与光线传播。(在工程光学、镜头设计中更常见。)

Pronunciation / 发音

/θk lnz/

Examples / 例句

A thick lens is harder to model than a thin lens.
厚透镜比薄透镜更难建模。

In camera design, a thick lens often requires using principal planes to predict the image position accurately.
在相机设计中,厚透镜常常需要借助主平面来更准确地预测像的位置。

Etymology / 词源

thick 源自古英语 icce,表示“厚的、稠密的”。lens 源自拉丁语 lens,本义是“扁豆”,因为早期透镜的形状像扁豆而得名;后来“lens”专指“透镜”。合起来 thick lens 即“厚(的)透镜”。

Related Words / 相关词汇

Literary Works / 文献与作品中的用例

  • Optics(Eugene Hecht)在透镜成像章节中讨论厚透镜与主平面等概念。
  • Principles of Optics(Max Born & Emil Wolf)以更严格的方式处理复杂光学系统,包含厚透镜/等效系统思想。
  • Modern Optical Engineering(Warren J. Smith)面向工程与镜头设计,常用厚透镜与等效焦距等术语。
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