... related subjects: 1.The diffraction phenomenon of filaments, single slit, double slits,multi-slits and small holes can ... 1.2mm. 3. Slit components: it contains filament, single slit, double slit, multi-slit, grating and many other ... , laser power indicator, one-dimensional displacement plane probe light + 12 steps light detector and etc..\ Diffraction of light Intensity distribution slitting line