Edmund Optics Inc. 488nm Notch Filter, OD4 Blocking, 50mm Diameter NT67-126

Low Cost Design >OD 4.0 Rejection of Laser Wavelength Broad Transmission Range Our TECHSPEC® OD4 Notch Filters are low-cost alternatives to Rugate Notch Filters. They feature narrow rejection bands of just ±2.5% of the CWL while offering >99% reflection of the laser wavelength. The filters are fabricated utilizing our hard sputtered APRS technology, guaranteeing durable coatings that will not degrade with time, temperature, or humidity. All filters are mounted in black anodized rings which have been engraved to ease filter handling, identification, and orientation.