V2EX optical axis

Optical Axis

释义 Definition

光轴:在光学系统(如透镜、显微镜、望远镜)中,用来描述系统对称性与成像方向的基准直线;通常指通过关键光学元件中心、并与系统旋转对称轴重合的那条线。也常用于描述晶体或光纤中与光传播与折射性质相关的主要方向(不同语境下定义会略有差别)。

发音 Pronunciation (IPA)

/ptkl kss/

例句 Examples

The camera lens is aligned with the optical axis.
相机镜头与光轴对齐。

If the sample is tilted away from the optical axis, the image may become blurred and distorted due to aberrations.
如果样品偏离光轴倾斜,图像可能会因像差而变得模糊并产生畸变。

词源 Etymology

optical 来自希腊语 optikos(与“看、视觉”有关),经拉丁语与法语进入英语,表示“光学的、视觉的”。axis 来自拉丁语 axis(轴、车轴),引申为“中心线/基准线”。合起来 optical axis 就是“光学系统的中心轴线(光轴)”。

相关词 Related Words

文学与经典作品 Literary Works

  • Optics(Eugene Hecht)常用“optical axis”讲解透镜与成像系统的几何关系。
  • Principles of Optics(Max Born & Emil Wolf)在物理光学与成像理论中涉及“optical axis/axis”作为系统基准方向。
  • Introduction to Modern Optics(Grant R. Fowles)讨论光学仪器与近轴(paraxial)成像时频繁使用该术语。
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