43-840 50 mm Dia. N-BK7 Concave-Convex Spherical Mirror; EFL=50mm Protected Gold 700-10000nm

This 43-840 optical mirror, sourced from Edmund Optics, is a high-quality concave mirror with a 50mm diameter and a 50mm effective focal length (EFL). The mirror is made from N-BK7 Schott glass, a popular choice for its excellent optical properties and high damage threshold.

The mirror's base shape is circular, and it features a protected gold coating on the front surface, specifically designed for use in the 700-10000nm wavelength range. This coating ensures high reflectivity and durability, making it suitable for various applications, including but not limited to, beam expanding, focusing, and imaging.

The mirror has a thickness of 6mm at the edge, which provides rigidity and stability. Its geometry, including a radius of curvature of -100mm for both the front and back surfaces, classifies it as a concave-convex spherical mirror. This unique geometry allows for a wide range of optical applications, making it a versatile addition to any optical system.