OSLO is software used by scientists and engineers to design lenses, reflectors, optical instruments, laser collimators, and illumination systems. It is also used for simulation and analysis of optical systems using both geometrical and physical optics. In addition to optical design and analysis, OSLO provides a complete technical software development system including interactive graphics, math, and database libraries. There is a free version of OSLO intended for educational use, which can be downloaded from the Lambda Research Corp web site. Download OSLO-EDU (formerly OSLO LT)!