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.
回折格子の角分散は波長によって異なる。
The angular dispersion of a diffraction grating varies with wavelength.
Compound of 角 (angle) and 分散 (dispersion), directly corresponding to the English term 'angular dispersion'.