This is a Plano-Convex Lens, type of spherical lens, sourced from Qioptiq Photonics. The lens has a circular base shape with a diameter of 7 mm and a thickness edge of 0.8 mm. The thickness at the center of the lens is 3.5 mm, and the effective focal length (EFL) is 7 mm. The lens is made of N-BK7 Schott, a popular optical glass, and is uncoated.
The lens's inner radius is 0, and the outer radius is also 0, indicating a plano surface on one side and a curved surface on the other. The curvature of the curved surface is defined by a radius of 3.62 mm. The lens is designed to operate at a wavelength of 588 nm.
This lens is available for purchase from the Qioptiq Photonics website, where it is listed as in stock. The provided weblink leads directly to the product page for easy access.