diffraction grating
معنی فارسی
توري پراش
معنی کامل و مثالها
● (نورشناسی) پراش سنج، پراشنما
تعریف انگلیسی
noun
- optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum