This is a 091-3125R-200 12.7 mm Dia. UVFS Protected Silver Plano-Concave Spherical Mirror, with a thickness of 6mm and a center wavelength of 400nm. The mirror is sourced from EKSMA Optics, a reputable vendor in the optical components industry.
The mirror is a Curved Mirror (Concave) type, with a base shape of Circular. It has a diameter of 12.7 mm and a thickness edge of 6 mm. The effective focal length (EFL) is -100 mm, and the radius of curvature (R1) is -200 mm.
The mirror is made of UVFS material, specifically UVFS Mal- 1965. The coating on the front surface is EKS 0025protsil 4000, which is a protected silver coating. The mirror's shape is Spherical.
For more information and to check the availability of this product, please visit the vendor's website using the provided weblink: https://eksmaoptics.com/optical-components/metallic-mirrors/protected-silver-mirrors/. The weblink has been verified and is currently valid, indicating that the product is in stock.