36-197 5 mm Dia. AR Coated Sapphire Protective Flat Window

The 36-197 is a 5 mm diameter Sapphire Protective Flat Window, featuring a thickness of 1 mm and an Anti-Reflective (AR) coating of MgF2 for the wavelength range of 400-700nm. This window is sourced from the reputable vendor, Edmund Optics, and is currently in stock with a valid weblink for direct purchase.

The window is designed in a flat configuration with a circular base shape, making it suitable for a wide range of applications that require a transparent optical medium. The geometry of the window includes a diameter of 5 mm and a thickness of 1 mm, providing a balance between durability and light transmission.

The material of the window is Sapphire, specifically identified as al2o3 mal-1972-n-o in the Material ID. Sapphire is known for its exceptional hardness, second only to diamond, making it highly resistant to scratches and abrasions. It also exhibits excellent optical properties, including high transparency across a broad spectrum and a low coefficient of thermal expansion.

The window is coated with MgF2 on both the front and back surfaces, following the standard curve from Edmund Optics. This coating reduces reflective losses at the air-glass interface, enhancing the transmission of light through the window. The wavelength for this AR coating is 587.6 nm, which is within the visible light spectrum.

The window is shaped as a thin lens, which can have a focusing effect on light passing through it, depending on the curvature and thickness of the lens. However, as a flat window, it primarily serves to protect the optical system behind it without introducing any additional optical power.