30Z20ER.2 76.2 mm Dia. Zerodur Broadband Metallic Mirror; t=14.7mm Protected Silver 480-20000nm

This is a 30Z20ER.2 metallic mirror, boasting a broadband coating suitable for a wide range of wavelengths, from 480nm to 20000nm. The mirror is manufactured by MKS/Newport, a trusted name in the optical industry, and is currently in stock, as indicated by its weblink status.

The mirror is circular in shape, with a diameter of 76.2mm and a thickness of 14.7mm. It is made of Zerodur, a high-quality glass-ceramic material produced by Schott AG, known for its excellent thermal stability and low thermal expansion coefficient. This makes the mirror an ideal choice for applications requiring high precision and stability over a wide temperature range.

The mirror's coating is a new ER.2 coating, which is a protected silver coating. This type of coating is known for its high reflectivity and durability, making it suitable for a wide range of optical applications. The coating is applied to the front surface of the mirror.

The mirror is shaped as a thin lens, which is a type of lens where the thickness is much less than the diameter. This shape is often used in optical systems where a flat field is required, or where the lens needs to be as lightweight as possible.