- Tower Optical is a low cost manufacturer of high quality precision optics. We stock thousands of Waveplates, Lenses, Micro Lenses, Prisms, Micro Prisms, Substrates, UV Mirrors, Window, Polarizers, Beam Expanders, Beam Splitters, and Microscope Objectives. Optics for Electro Optics, Laser Components, Telecommunications, Medical Instruments, Fiber Optics, Optical Imaging and Optical Computing.www.toweroptical.com