Optical windows are used as protective elements between two environments and their impact on the passage of visible light is neutral. They are simple sheets of material, polished on both faces to be flat and parallel. The optimal glass type is established based on your desired application. Armed with knowledge, expertise and technology, Glass Dynamics, LLC can meet your precise machined specifications within the materials of BK7, Fused silica, Sapphire, Quartz, and Silicon. If you need assistance please contact us at sales@glassdynamicsllc.com.