V2EX thin lens

Thin Lens

释义 Definition

薄透镜:在光学中指厚度相对于曲率半径很小、可把透镜的折射作用近似看作发生在一个平面上的透镜模型。常用于推导与使用薄透镜公式(如焦距、物距、像距关系)。

发音 Pronunciation (IPA)

/θn lnz/

例句 Examples

A thin lens can form a clear image on the screen.
薄透镜可以在屏幕上形成清晰的像。

Using the thin lens approximation, we can relate focal length to object and image distances to predict where the image will appear.
使用薄透镜近似,我们可以把焦距与物距、像距联系起来,从而预测像会出现在哪里。

词源 Etymology

thin 来自古英语 ynne,表示“薄的、细的”;lens 源自拉丁语 lens,原意是“扁豆”,因为早期双凸透镜外形像扁豆。thin lens 作为术语常见于经典几何光学中,用来强调“薄”这一近似条件,便于计算与建模。

相关词 Related Words

文学与经典作品 Literary Works

  • Optics(Eugene Hecht):以薄透镜近似与薄透镜公式作为入门与推导核心内容之一。
  • The Feynman Lectures on Physics(Richard P. Feynman):在讲解成像与几何光学时会使用薄透镜模型进行直观说明。
  • Principles of Optics(Max Born & Emil Wolf):在系统光学理论中涉及透镜近似与成像分析(薄透镜作为常用理想化模型)。
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