This is a G340334331 metallic mirror, offered by Qioptiq Photonics, a renowned vendor in the field of precision optics. The mirror has a base shape of a circle, with a diameter of 18 millimeters, making it suitable for a wide range of optical applications.
The mirror is thin, with a thickness of 4 millimeters, and is made of borofloat33, a material known for its excellent optical properties. The mirror is coated with a front coating of qio al ralvis aoi 45, which is designed to enhance its reflective properties in the wavelength range of 400-700 nanometers.
The mirror is designed to be used in a Thin Lens configuration, which allows for precise control over the light path. The web link provided leads to the product page on Qioptiq's website, where you can find more information about the mirror, including its current availability and pricing.