87-690 25 mm Dia. N-BK7 Plano-Convex Spherical Mirror; EFL=50mm Protected Gold 700-2000nm

The 87-690 is a 25 mm diameter Plano-Convex Spherical Mirror, designed and manufactured by Edmund Optics. This mirror is part of their extensive catalog of optical elements, sourced from various vendors worldwide. The mirror features a convex base shape, constructed from N-BK7 Schott glass, a popular choice for its excellent optical properties and high damage threshold.

The mirror's geometry includes a 25 mm diameter, with a thickness of 2.22 mm at the edge and 3 mm at the center. The effective focal length (EFL) is 50 mm, making it suitable for a wide range of optical applications. The mirror's curvature is spherical, with a radius of curvature (R1) of 100 mm.

The mirror's front surface is coated with a protected gold coating, designed to enhance its performance in the 700-2000nm wavelength range. This coating provides high reflectivity and durability, making it ideal for use in demanding environments.

The mirror is currently in stock and available for purchase through the Edmund Optics website. For more detailed information, including technical specifications and pricing, please refer to the provided weblink.