fringes
in physics, fringes are bands of contrasting brightness or darkness produced by diffraction or interference of radiation with a measurable wavelength
en-GB/ˈfɹɪnd͡ʒɪz/
en-US/ˈfɹɪnd͡ʒɪz/
in physics, fringes are bands of contrasting brightness or darkness produced by diffraction or interference of radiation with a measurable wavelength