39-269 40 mm Dia. AR Coated Sapphire Protective Flat Window; t=2 mm NIR II 750-1550nm

The 39-269 is a high-quality protective flat window, boasting a generous 40 mm diameter and a thickness of 2 mm. This window is constructed from sapphire, a material renowned for its exceptional durability and resistance to scratching, making it an ideal choice for applications requiring robust protection.

The window features an Anti-Reflective (AR) coating on both the front and back surfaces, specifically designed for the Near-Infrared II (NIR II) spectrum, covering the wavelength range of 750-1550nm. This coating significantly reduces reflective losses, enhancing the transmission of light through the window. The coating is standard, as indicated by the 'edm nir-ii std curve' specification.

The 39-269 is sourced from the reputable vendor, Edmund Optics, and is currently in stock, as per the 'weblink status' information. The window's 'Thin Lens' shape and 'Circular' base shape add to its versatility, making it suitable for a wide range of optical systems.

For more detailed information, including technical specifications and purchasing options, please refer to the provided weblink: https://www.edmundoptics.com/p/40mm-diameter-nir-ii-ar-coated-sapphire-window/40159/