This is a 092-3230R+800 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 is a curved mirror with a Sub Type of Convex, featuring a geometry with an effective focal length (EFL) of 400 mm and a radius of curvature (R1) of 800 mm.
The mirror is made of UVFS material, identified as UVFS Mal- 1965 in the item data. It is designed to operate at a wavelength of 900 nm. The front surface of the mirror is coated with EKS 0030protgold900, a protected gold coating, which enhances its reflectivity and durability.
The item data also indicates that this mirror is in stock and available for immediate purchase. For more information, you can refer to the vendor's website through the provided weblink, which has been validated and found to be in stock.