39-421 25 mm Dia. Zinc Selenide Protective Flat Window; t=5mm BBAR 8-12µm

This 39-421 Zinc Selenide (ZnSe) Protective Flat Window, offered by Edmund Optics, is a high-quality optical component designed for a wide range of applications. The window boasts a diameter of 25 mm and a thickness of 5 mm, providing a robust and durable platform for various optical systems.

The window is made from ZnSe, a material known for its excellent optical properties, including high transparency in the infrared region, making it ideal for applications such as thermal imaging and spectroscopy. The ZnSe material is also chemically stable and resistant to environmental factors, ensuring longevity and reliability in various operating conditions.

The window features a Broadband Anti-Reflection (BBAR) coating on both the front and back surfaces. This coating is designed to minimize reflection and maximize transmission across the 8-12 µm wavelength range. The BBAR coating ensures optimal performance in infrared applications, reducing losses and improving signal-to-noise ratios.

The window's geometry is defined as a Thin Lens, which is a simple lens with a very small thickness compared to its diameter. This geometry ensures minimal optical aberrations and distortions, providing clear and accurate optical paths.