This is a Plano-Convex Lens, type G312009400, sourced from Qioptiq Photonics. It is a Spherical Lens with a Sub Type of Spherical Lens (Plano-Convex). The lens has a circular base shape and is designed for use with a wavelength of 588 nm.
The lens has a diameter of 7 mm and a thickness at the edge of 0.8 mm. The thickness at the center is 3.5 mm, and the Effective Focal Length (EFL) is 7 mm. The radius of curvature (R1) is 3.62 mm, while the Inner Radius and Outer Radius are both 0 mm.
The lens is made of N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties. It is coated with Qio Silver Ragv 45 on both the front and back surfaces.
This lens is currently in stock and can be purchased from the Qioptiq Photonics website. For more information, please refer to the provided weblink.