IJ Research produces a wide variety of hermetic windows and hermetic window assemblies. Windows can be made with sapphire, optical spinel, quartz, fused silica, BK7, grin lenses, or other transparencies. Hermetically sealed ceramic windows are ideal for applications which experience high temperatures or pressures. IJ Research has successfully developed and produced a wide variety of hermetic window assemblies for many different end-users. Our customers include major defense OEM’s, aerospace start-ups, oil and gas exploration companies, medical device & surgical equipment manufacturers, and a host of industrial and instrumentation customers.