This is a 092-3230R+400 25.4 mm Dia.UVFS Protected Gold Spherical Plano-Convex Mirror, designed and manufactured by EKSMA Optics. The mirror has a base shape of a circle with a diameter of 25.4 mm and a thickness at the center of 6 mm. It features a spherical geometry with a radius of curvature (R1) of 400 mm, providing a focal length of 200 mm.
The mirror is made from UVFS material with the ID 1965, specifically designed for use in the 900 nm wavelength range. The front surface of the mirror is coated with EKSMA's 0030protgold900 coating, which is a protected gold coating, enhancing its reflectivity in the specified wavelength range.
This mirror is a curved mirror of the convex type, meaning that the concave side is facing the incoming light. It is a protected gold mirror, which means that the gold coating is protected by a layer of dielectric material, increasing the durability and longevity of the mirror.
The mirror is currently in stock and available for purchase. More information about this product can be found on the EKSMA Optics website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-gold-mirrors/.