87-689 25 mm Dia. N-BK7 Plano-Convex Spherical Mirror; EFL=25mm Protected Gold 700-2000nm

This is a 25 mm diameter plano-convex spherical mirror from Edmund Optics, specifically designed for use in the 700-2000nm wavelength range. The mirror is made from N-BK7 Schott glass, a popular choice for its high refractive index and low dispersion, making it ideal for a wide range of optical applications.

The mirror's geometry features a 25mm effective focal length (EFL), which is the distance from the mirror's center to the focal point. The radius of curvature (R1) is 50mm, and the mirror's thickness varies from 1.41mm at the edge to 3mm at the center. This variation in thickness can help reduce optical aberrations and improve image quality.

The mirror's front surface is coated with a protected gold coating, which provides high reflectivity across the specified wavelength range. This coating is designed to be robust and durable, offering excellent protection against environmental factors and ensuring long-term performance.

The item data also indicates that this mirror is in stock, making it readily available for immediate use. For more detailed information, including technical specifications and purchasing options, please refer to the vendor's website using the provided weblink.