Collimation testing using slit Fresnel diffraction
Collimation testing using slit Fresnel diffraction is a scholarly work, published in 2018 in ''Review of Scientific Instruments''. The main subjects of the publication include materials science, optics, diffraction, Fresnel number, physics, diode, digital image correlation, beam, laser, dimensional metrology, Fresnel diffraction, surface roughness, collimated light, and Slit family. Simulations show that the wide spectrum of LED has the effect of smooth filtering to provide higher accuracy.