37-702 30 mm Dia. AR Coated Sapphire Protective Flat Window; t=1 mm VIS-NIR 400-1000nm

The 37-702 is a high-quality protective flat window offered by Edmund Optics, designed for use in the visible (VIS) and near-infrared (NIR) spectrum range of 400-1000nm. This window boasts a diameter of 30mm and a thickness of 1mm, making it a versatile and robust solution for various optical applications.

The window is made from sapphire, a highly durable and scratch-resistant material with a Mohs hardness of 9, ensuring longevity and resistance to wear and tear. Sapphire also offers excellent optical properties, including a high refractive index of 1.76 and low absorption, making it an ideal choice for applications that require high transmittance and clarity.

The 37-702 window features anti-reflective (AR) coatings on both the front and back surfaces, specifically the edm visnir0sp2002000 coating. This coating is designed to reduce surface reflections and increase transmission, enhancing the overall performance of the window in its intended application.

The window is shaped as a thin lens, which can be beneficial in applications where a flat window is required but a lens-like effect is desirable. This shape can help to minimize optical aberrations and improve the overall optical performance of the system.