uklon099 - Version 0.99 UKLON0.99 is an educational computer software in the field of physics of light. You can observe photorealistic Fraunhofer diffraction patterns on different apertures, also You can find something about the photoeffect or wave properties of particles passing through different apertures. On advanced level You can study intensity distribution, form factor and grating factor (interference) at various intersections through diff. pattern. This software CAN be freeware in certain cases (individuals, non-profit, self educational use on one domestic PC)