Alkor Technologies - Russian manufacturer of crystal optics. Optical components including: windows, lenses, prisms, mirrors, filters, substrates, wedges for ultraviolet, visible and infrared spectral regions made from KBr, NaCl, KCl, CsI, CaF2, BaF2, LiF, MgF2, ZnSe, Sapphire, Si, Ge, optical glasses and Fused Silica ( IR,UV grade).We are one of the largest manufacturer CaF2 and BaF2 optics. We have our own machines for crystal growth. That is why we always offer best prices on our optical parts! Please visit our web page for more info!