This is a 15-492 First Surface Flat Mirror, measuring 50 x 50 mm with a thickness of 3mm. The mirror is made of soda lime ru clear glass, a common material in optical applications due to its excellent clarity and durability.
The mirror's coating is rhodium, a noble metal known for its high reflectivity and resistance to corrosion. The rhodium coating covers the front surface of the mirror and is designed to reflect light within the wavelength range of 400-10000nm. This broad spectral range makes the mirror suitable for a wide range of applications, from visible light to near-infrared and even some parts of the ultraviolet spectrum.
The mirror is shaped as a thin lens, which can be beneficial in certain optical systems where minimal thickness is required. The mirror is sourced from Edmund Optics, a reputable vendor in the optical industry, and is currently in stock, as indicated by its valid weblink status.