"Dalian Cornerstone Laser Optics" is a laser solution provider which is jointly founded by senior optics engineers and experienced administrators in the field of laser products, especially infrared laser. We are very experienced in lens design and production, research and practical application.In additional to stock of optical lenses in all kinds of common specifications,we can also accept customer customized precision grinding, polishing, coating and other businesses , the materials mainly include zinc selenide,zine sulfide, calcium fluoride ,GE,SI,quartz .Our company could also provide many standard products that are commonly used,such as focusing lens,mirrow,protect window,f-theta lens, carystalline material,beam combiner,beam expanders,prism, aspheric lenses, optical filter and so on.Looking forward to cooperating with you,and what would we rewards you will be high quality and prompt shipments.