48-928 76.2 mm Dia. Float Glass High Efficiency Protective Flat Window; t=1 mm BBAR 425-700nm

This 48-928 optical window, sourced from Edmund Optics, is a high-efficiency protective flat window designed for use in optical systems. The window boasts a diameter of 76.2 mm and a thickness of 1 mm, making it a robust and reliable component in various applications.

The window is made of soda lime glass, a common material in optical systems due to its excellent optical properties and durability. The glass is ru clear, ensuring high transparency and minimal distortion of light passing through it.

The window features a broadband anti-reflection (BBAR) coating on both the front and back surfaces. This coating is designed to reduce reflection across the spectral range of 425-700 nm, enhancing the transmission of light and improving the overall performance of the optical system. The BBAR coating is particularly useful in applications where high light transmission is critical, such as in imaging systems, spectroscopy, and laser applications.

The window's geometry is that of a thin lens, which can be beneficial in certain applications where the window needs to focus or collimate light. However, in this case, the lens power is zero, meaning it does not alter the divergence or convergence of light passing through it.