Research Electro-Optics | 2,772 followers on LinkedIn. Acquired by Excelitas Technologies | Optics - Assemblies - Laser Products REO, an Excelitas Technologies Company, sets today’s standards for precision in optical components and assemblies with solutions that are engineered for superior reliability, durability, and cost-effectiveness. Incorporating ion beam sputtered thin films, superpolished substrates and precision assembly technologies, our products provide the ultimate in low loss and high quality. We are the partner you can depend on, now and in the future, to deliver unmatched performance and value.