87-685 50 mm Dia. N-BK7 Plano-Convex Spherical Mirror; EFL=100mm Protected Silver 450-10000nm

This is a high-quality 87-685 Plano-Convex Spherical Mirror, sourced from the renowned optical components vendor, Edmund Optics. The mirror boasts a 50 mm diameter and a focal length of 100 mm, making it suitable for a wide range of optical applications.

The mirror is made from N-BK7, a popular optical glass known for its excellent optical properties. This material, also known as Schott glass, is characterized by its low dispersion and high Abbe number, making it an ideal choice for applications that require high image quality and minimal chromatic aberration.

The mirror's geometry is another notable feature. It has a thickness of 3.43 mm at the edge, increasing to 5 mm at the center, providing robustness and stability. The mirror's spherical shape, with a radius of curvature of 200 mm, ensures excellent light reflection and focusing capabilities.

The mirror's coating is a protected silver coating, designed to provide high reflectivity across a broad spectrum, from 450 nm to 10000 nm. This makes it suitable for a wide range of applications, including infrared and visible light systems. The 'protected' nature of the coating ensures durability and resistance to tarnish, further enhancing the mirror's longevity and reliability.