This is a G312401322 Plano-Convex Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, which has a base shape of a circle, is designed for use in the 450-700nm wavelength range, making it suitable for a wide range of optical applications.
The lens has a diameter of 31.5mm and a thickness at the edge of 2mm. The center thickness is 8.3mm, providing a decent depth for mounting and integration into optical systems. The effective focal length (EFL) of the lens is 40mm, making it a medium to long-focus lens.
The lens is made of N-BAK4, a high-quality optical glass known for its excellent optical properties. The lens has a spherical shape, with a radius of curvature (R1) of 22.87mm on the convex side. The inner radius is 0mm, and the outer radius is also 0mm, indicating a plano surface on the other side.
The lens is coated with Qio Bbar Arb2visnbk7 on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, enhancing the performance of the lens in its intended application.