66-198 40 mm Dia. N-BK7 Ultra-Thin Protective Flat Window; t=0.2 mm MgF2 400-700nm

The 66-198 is a high-quality Flat Window, measuring 40 mm in diameter, sourced from the renowned optical components vendor, Edmund Optics. This protective window is fabricated from N-BK7, a popular borosilicate crown glass known for its excellent optical properties, including low dispersion and high homogeneity, making it an ideal choice for various optical applications.

The window boasts a thin profile, with a thickness of just 0.2 mm, ensuring minimal optical path deviation while providing sufficient robustness and protection for the optical system it serves. The front and back surfaces of the window are coated with EDM MgF2 standard curve coatings, designed to enhance the system's performance by reducing reflection losses within the 400-700 nm spectral range. This coating ensures optimal transmission and minimal scatter, contributing to improved signal-to-noise ratios and overall system efficiency.

The 66-198 Flat Window is designed following the Thin Lens geometry, allowing for seamless integration into various optical systems and configurations. With its impressive combination of material, coating, and geometrical properties, this window is an excellent choice for applications demanding high-performance optical components, such as imaging systems, beam delivery, and laser applications.