46-099 50.8 x 50.8 mm Float Glass High Efficiency Protective Flat Window; t=3 mm BBAR 425-700nm

The 46-099 is a high-efficiency protective flat window, designed and manufactured by Edmund Optics. This window is a crucial component in various optical systems, providing a transparent barrier that protects the system from environmental hazards while minimally affecting the light path.

The window measures 50.8 mm in both width and length, making it suitable for applications that require a large aperture. It has a thickness of 3 mm, providing a robust structure that can withstand moderate pressures and impacts. The window is made of soda lime glass, a common material in optical systems due to its excellent optical properties and affordability.

The 46-099 window features a broadband anti-reflection (BBAR) coating on both the front and back surfaces. This coating is designed to reduce reflection across a wide range of wavelengths, from 425 nm to 700 nm. By doing so, it enhances the transmission of light through the window, improving the overall efficiency of the optical system.

The window is shaped as a thin lens, which means it has been ground and polished to a precise curvature. However, in this case, the lens is not designed to focus light but rather to provide a flat, transparent surface. This shape also minimizes the weight and thickness of the window, making it easier to integrate into various optical systems.