43-336 25.4 mm Dia. Borofloat λ/4 Precision Concave Spherical Mirror; EFL=25.4mm Protected Aluminum 400-2000nm

This is a 43-336 25.4 mm Dia. Borofloat λ/4 Precision Concave Spherical Mirror, a high-quality optical component sourced from Edmund Optics. The mirror has a diameter of 25.4 mm and a thickness at the edge of 6.35 mm, making it a compact and robust option for various applications.

The mirror's effective focal length (EFL) is 25.4 mm, which is the same as its diameter, indicating a relatively flat curvature. This makes it suitable for applications that require minimal optical distortion. The mirror's radius of curvature (R1) is -50.8 mm, which is typical for concave mirrors.

The mirror is made of Borofloat33, a low-expansion borosilicate glass that offers excellent thermal stability and chemical resistance. This makes it an ideal choice for applications involving extreme temperatures or corrosive environments.

The mirror's front surface is coated with a protected aluminum coating, designated as edm dprotal300200000. This coating provides high reflectivity across a broad spectrum, from 400 nm to 2000 nm, making it suitable for a wide range of applications, including near-infrared (NIR) and mid-infrared (MIR) spectroscopy.