This is a 095-0130R-100 50.8 mm Dia. N-BK7 Protected Gold Spherical Plano-Concave Mirror, a high-quality optical component sourced from EKSMA Optics. The mirror has a base shape of a circle with a diameter of 50.8 mm and a thickness of 10 mm at the edge.
The mirror's geometry is spherical, with a radius of curvature (R1) of -100 mm, making it a concave mirror. The effective focal length (EFL) of this mirror is -50 mm. The mirror is made of N-BK7 Schott, a popular optical glass known for its excellent optical properties and wide transmission range.
The mirror is coated with a protected gold coating, specifically EKS 0030protgold900, which is designed for use at a 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.