This is a 095-0130R-150 50.8 mm Dia. N-BK7 Protected Gold Spherical Plano-Concave Mirror, sourced from EKSMA Optics. The mirror has a base shape of a circle with a diameter of 50.8 mm and a thickness edge of 10 mm. It is designed with a spherical geometry, featuring a radius of curvature (R1) of -150 mm, and an effective focal length (EFL) of -75 mm.
The mirror is made of N-BK7 Schott, a popular optical glass known for its excellent optical properties. It is coated with a protected gold coating (eks 0030protgold900) on the front side, specifically designed for a central wavelength of 900 nm. This coating ensures high reflectivity and durability, making it suitable for various applications.
For more information about this product, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-gold-mirrors/. The link is currently valid and indicates that the product is in stock.