46-232 10 mm Dia. N-BK7 λ/4 Concave Spherical Mirror; EFL=20mm Protected Aluminum 400-2000nm

This is a 10 mm diameter concave spherical mirror from Edmund Optics, specifically designed for use in optical systems requiring high-quality reflective elements. The mirror's concave shape, defined by a radius of curvature (R1) of -40 mm, is ideal for focusing or collimating light in various applications.

The mirror is made from N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transmission range. The mirror's thickness varies from 3 mm at the center to 3.31 mm at the edge, providing structural rigidity while minimizing weight.

The mirror's protective aluminum coating, identified as EDM PROTAL452008000, is designed for use in the 400-2000 nm wavelength range. This coating provides high reflectivity and durability, making it suitable for a wide range of applications.

The mirror's effective focal length (EFL) is 20 mm, which, combined with its diameter, allows for a wide field of view while maintaining a compact form factor. This makes it an excellent choice for applications where space is a constraint but high optical performance is required.