V2EX fraunhofer

Fraunhofer

释义 Definition

Fraunhofer(弗劳恩霍夫)通常指与德国光学家约瑟夫冯弗劳恩霍夫(Joseph von Fraunhofer)相关的光学现象或概念,最常见于:

  • Fraunhofer diffraction:远场衍射(当光源与观察屏“足够远”,或用透镜在焦平面观察到的衍射图样)。
  • Fraunhofer lines:弗劳恩霍夫谱线(太阳光谱中一系列暗线,对光谱学发展极重要)。
    (在英语中它也可指 Fraunhofer Society/Institute:德国弗劳恩霍夫应用研究协会/研究所体系。)

发音 Pronunciation (IPA)

/franhofr/

词源 Etymology

该词源自人名:Joseph von Fraunhofer(17871826)。他在光学玻璃、棱镜与光栅制造、以及太阳光谱研究方面成就突出;因此后来许多与光谱与衍射有关的术语以其姓氏命名(如“Fraunhofer lines / diffraction”)。

例句 Examples

Fraunhofer diffraction is often taught in introductory optics.
弗劳恩霍夫衍射常在光学入门课程中讲授。

Using a lens, we can observe the Fraunhofer diffraction pattern in the focal plane and relate it to the Fourier transform ofthe aperture.
借助透镜,我们可以在焦平面观察到弗劳恩霍夫衍射图样,并将其与孔径的傅里叶变换联系起来。

相关词 Related Words

文学与著作中的出现 Notable Works

  • Principles of Optics(Born & Wolf)讨论弗劳恩霍夫衍射与衍射理论框架。
  • Optics(Eugene Hecht)以教学方式介绍 Fraunhofer diffraction、光栅与成像关系。
  • Introduction to Modern Optics(Grant R. Fowles 等教材传统)常用“Fraunhofer/Fresnel”对比讲解近场与远场衍射。
  • The Feynman Lectures on Physics(费曼物理学讲义,相关章节)在波动、干涉与光学主题中提及衍射与光谱现象(含相关术语语境)。
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