This is a Plano-Convex lens with a diameter of 3 mm, sourced from Qioptiq Photonics. The lens is designed for use with a wavelength of 588 nm and features a front and back coating of qio hp nbar arhs-yag. The lens's geometry includes a thickness edge of 0.34 mm, a thickness center of 1.5 mm, and an effective focal length (EFL) of 3 mm. The lens is made of N-BK7 Schott material, a popular choice for its high refractive index and low dispersion. The lens's base shape is circular, and its shape is spherical. The lens's geometry suggests its use in compact optical systems where space is a constraint. The lens's coating and material make it suitable for use in high-power laser applications. The lens's availability and stock status can be verified through the provided weblink.