最終更新日：2025/12/06

(optics) A bright point that appears at the centre of a circular object's shadow due to Fresnel diffraction.

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Arago spot

元となった辞書の項目

Arago spot

(optics) A bright point that appears at the centre of a circular object's shadow due to Fresnel diffraction.

日本語の意味

円形の物体の影の中心に、フレネル回折によって現れる明るい点

During the demonstration, the laser beam produced a clear Arago spot at the center of the circular disk's shadow.

実演では、レーザービームがフレネル回折により円形物体の影の中心に鮮明な明るい点を作り出した。

意味（1）

(optics) A bright point that appears at the centre of a circular object's shadow due to Fresnel diffraction.

The Arago spot played an important role in the discovery of the wave nature of light and is a common way to demonstrate that light behaves as a wave.

Arago spots

（ plural ）