This is a 091-3125R-100 12.7 mm Dia. UVFS Protected Silver Plano-Concave Spherical Mirror, a high-quality optical component sourced from EKSMA Optics. The mirror has a diameter of 12.7 mm and a thickness of 6 mm at the edge, making it suitable for various optical applications.
The mirror's geometry is plano-concave, meaning it has a flat front surface and a curved back surface. The curvature of the back surface is spherical, with a radius of curvature (R1) of -100 mm. This curvature results in a negative effective focal length (EFL) of -50 mm, which is typical for concave mirrors.
The mirror is made from UVFS material, specifically UVFS mal- 1965, and is designed to operate at a wavelength of 400 nm. The front surface of the mirror is coated with EKS 0025protsil 4000, a protected silver coating that enhances its reflectivity and durability.
This mirror is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-silver-mirrors/.