AR Coating for Optical Lenses: What Engineers Need to Specify AR coating for optical lenses is used to reduce unwanted Fresnel reflections at lens surfaces and improve the amount of useful light transmitted through an optical system. For engineering applications, however, “AR coated” is not…

A split ratio only means something when wavelength range, angle of incidence and polarization state are written next to it. Plates shift the transmitted beam and separate the ghost; cubes stay on axis but add glass path and a cemented interface. Non-polarizing, broadband and low-absorption…