This is the 10SD520ER.4, a 25.4 x 25.4 mm Borofloat 33 Economy Broadband Metallic Mirror with a thickness of 6mm. This mirror is sourced from the reputable vendor MKS/Newport, and it is currently in stock with a valid web link provided for easy accessibility.
The mirror is a rectangular broadband metallic mirror, designed with a thin lens shape. It is made of Borofloat 33, a high-quality glass material known for its excellent thermal stability and chemical resistance. The mirror's coating is a new ER.4 coating on the front, providing a protected gold surface that reflects light in the wavelength range of 650-20000nm.
This mirror is an ideal choice for applications that require a broadband metallic mirror with high reflectivity and durability. Its protected gold coating ensures longevity and resistance to tarnish, making it suitable for use in various environments. The mirror's thin lens shape allows for easy integration into optical systems, while its rectangular base shape provides versatility in design and application.