角かく分ぶん散さん

noun

angular dispersion

Technical term in physics and optics referring to the spreading of light or waves as a function of angle, often in the context of diffraction gratings or prisms.

• 回かい折せつ格こう子しの角かく分ぶん散さんは波は長ちょうによって異ことなる。

  The angular dispersion of a diffraction grating varies with wavelength.