This is the G052318331 model from Qioptiq Photonics, a 12.7 mm diameter Plano-Concave Lens with a mounted fused silica. The lens is designed with a negative focal length (EFL) of -200mm, making it suitable for applications that require light convergence.
The lens's geometry is characterized by a center thickness of 5.8mm, an inner radius of 0mm, and an outer radius of 0mm. The base shape is circular, and the lens is spherical, ensuring excellent optical performance.
The lens is made from UVFS material with a Mal-1965 ID. It is designed to work with a wavelength of 355nm and is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces, enhancing its durability and optical properties.
The item data indicates that this lens is in stock and available for purchase on the Qioptiq Photonics website. For more information, you can visit the provided weblink: https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Plano-Concave-Lenses/Plano-concave-lenses-mounted-fused-silica.html