This is a 095-0115R-3000 Protected Aluminium Spherical Plano-Concave Mirror, sourced from EKSMA Optics. The mirror has a diameter of 50.8 mm and a thickness of 10 mm at the edge. It is designed for use with a wavelength of 300 nm and is made from N-BK7 Schott glass, a popular choice for its high refractive index and low dispersion.
The mirror's geometry is spherical, with a radius of curvature (R1) of -3000 mm, resulting in a focal length (EFL) of -1500 mm. This negative focal length indicates that the mirror is concave, meaning it will bring light rays to a focus.
The mirror is coated with EKS 0015PROTAL 3000 on the front surface, a protected aluminium coating that provides high reflectivity and durability. This coating is specifically designed for use with ultraviolet light, making it suitable for a wide range of applications in this spectrum.
For more information, including pricing and availability, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-aluminium-mirrors/.