39-253 12.7 mm Dia. AR Coated Sapphire Protective Flat Window; t=3.2 mm NIR I 600-1050nm

The 39-253 is a high-quality protective flat window offered by Edmund Optics, designed for use in the near-infrared (NIR) spectrum. This window features a diameter of 12.7 mm and a thickness of 3.2 mm, making it a compact yet robust solution for various optical applications.

The window is made from sapphire, a highly durable and scratch-resistant material, ensuring longevity and reliability in demanding environments. Sapphire, with the chemical formula Al2O3, is known for its excellent optical properties, including a high refractive index and low absorption, making it an ideal choice for NIR applications.

The 39-253 window is coated with Edmund Optics' standard NIR-I anti-reflective (AR) coating on both the front and back surfaces. This coating is specifically designed to minimize reflection and increase transmission in the 600-1050nm wavelength range, enhancing the window's performance in NIR applications.

The window's thin lens shape further adds to its versatility, allowing for easy integration into various optical systems. With its robust construction, superior optical properties, and advanced AR coating, the 39-253 12.7 mm Dia. AR Coated Sapphire Protective Flat Window is an excellent choice for users seeking a reliable and high-performing NIR window.