This is a G312355329 12.7 mm diameter Plano-Convex lens, manufactured by Qioptiq Photonics. The lens is made of N-BK7, a popular type of glass used in optical systems due to its excellent optical properties. The lens has a focal length (EFL) of 150mm and is designed to operate at a wavelength of 1064nm.
The lens features a spherical shape, with a planar surface on one side and a convex surface on the other. The radius of curvature (R1) of the convex surface is 77.18mm. The lens has a thickness of 2.7mm at the edge and 3mm at the center.
The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, making the lens more efficient in transmitting light.
The lens is unmounted, meaning it does not come with any housing or mounting mechanism. It is available for purchase from the Qioptiq Photonics website, where it is currently in stock. The website also provides further technical specifications and datasheets for the lens.