This is a 092-0130R-600 25.4 mm Dia. N-BK7 Protected Gold Spherical Plano-Concave Mirror, designed for use at a wavelength of 900nm. The mirror is sourced from EKSMA Optics, a reputable vendor known for their high-quality optical components.
The mirror is a curved mirror of the concave type, with a base shape of a circle. It has a diameter of 25.4mm and a thickness at the edge of 6mm. The mirror's effective focal length (EFL) is -300mm, and its radius of curvature (R1) is -600mm.
The mirror is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. The front surface of the mirror is coated with eks 0030protgold900, a protected gold coating that provides high reflectivity in the infrared region of the spectrum.
This mirror is a spherical mirror, meaning it has the same curvature across its entire surface. It is a protected gold mirror, which means that the gold layer is protected by a dielectric coating, enhancing its durability and resistance to environmental factors.
The mirror is currently in stock and available for purchase. For more information, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-gold-mirrors/.