The G312259000 is a plano-convex lens with a diameter of 18 mm, sourced from Qioptiq Photonics. This lens is designed for use with a wavelength of 355 nm and is uncoated. The lens features a focal length of 30 mm (EFL), making it suitable for a variety of applications.
The lens has a base shape of circular and is spherical in geometry. The thickness at the edge of the lens is 1.5 mm, while the thickness at the center is 4.4 mm. The inner radius of the lens is 0, and the outer radius is also 0. The lens is made from UVFS material with the ID of "uvfs mal- 1965".
The lens is available for purchase directly from the Qioptiq Photonics website, where it is currently in stock. The website link for this product is: https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Plano-Convex-Lenses/Plano-convex-lenses-unmounted-fused-silica.html