This 092-0125R-250 mirror, sourced from EKSMA Optics, is a protected silver plano-concave spherical mirror with a diameter of 25.4 mm and a thickness of 6 mm at the edge. The mirror's concave shape, defined by a radius of curvature (R1) of -250 mm, results in a focal length of -125 mm, making it suitable for various optical applications.
The mirror is made of N-BK7 Schott glass, a popular choice due to its excellent optical properties and wide transmission range. This particular mirror is designed for use at a wavelength of 400 nm. The front surface of the mirror is coated with EKS 0025protsil 4000, a protected silver coating that offers high reflectivity and durability.
For more information, including pricing and availability, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-silver-mirrors/.