The 87-371 is a 25mm diameter dielectric mirror, specifically designed for broadband usage within the 400-750nm wavelength range. This mirror is sourced from the reputable optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The mirror's geometry is circular, with a thickness of 4mm, making it a thin lens. It is made from fused silica, identified as mal-1965 in the Material ID. The coating on the front surface is edm dmirror400750ave, which is specifically designed for the mentioned wavelength range.
This mirror is a part of the broader category of dielectric mirrors, which are known for their high reflectivity and durability. They are commonly used in various applications, including laser systems, interferometers, and optical spectroscopy.