45-658 12.5 mm Dia. N-BK7 Precision Protective Flat Window; t=3 mm VIS-NIR 400-1000nm

This 45-658 optical window, sourced from Edmund Optics, is a high-precision component designed for use in the visible (VIS) and near-infrared (NIR) spectrum, specifically covering the wavelength range of 400-1000nm. The window is fabricated from N-BK7, a popular borosilicate crown glass known for its excellent optical properties, making it an ideal choice for various applications.

The window boasts a generous 12.5 mm diameter, providing a substantial aperture for beam transmission. With a thickness of 3 mm, it offers sufficient structural integrity while maintaining minimal optical distortion. The geometry of the window is defined as a flat window, ensuring excellent light transmission and minimal aberration.

The window features a thin lens shape, allowing it to be easily integrated into optical systems. Both the front and back surfaces of the window are coated with the EDM VisNIR0SP2002000 coating, a broadband anti-reflection coating specifically designed for the VIS-NIR range. This coating reduces surface reflections, enhancing the overall transmission efficiency of the window.