... Lighting, Telescopes, Collimators, Condenser systems, Optical Transceivers, Emitters, Detectors, Lasers, Fiber Optics, Optical Display Systems, Projection Optics Systems, Imaging Optics Systems, Laser Measurement Systems, etc ... light, and is a ideal optical element in the application of emitters, detectors, lasers, and fiber optics.Specifications:Material: BK7, Fused Silica ...