This is a 092-3225R+300 protected silver plano-convex spherical mirror, sourced from EKSMA Optics. The mirror has a diameter of 25.4 mm and a thickness of 6 mm at the center. It is designed for use with a wavelength of 400 nm and features a UVFS material ID (1965).
The mirror's geometry includes an effective focal length (EFL) of 150 mm and a radius of curvature (R1) of 300 mm. The front surface of the mirror is coated with EKS 0025protsil 4000, a protective silver coating. This mirror is a curved mirror of the convex type, with a base shape that is circular.
According to the vendor's website, this item is currently in stock. For more detailed information, you can refer to the weblinks provided, which include a direct link to the product page on EKSMA Optics' website.