This is a Plano-Convex Lens, a type of spherical lens, sourced from Standa. The lens has a base shape of a circle and is designed for use in the visible light spectrum, specifically at a wavelength of 546 nm. The lens is made from the material n-bk7 schott, a common choice for optical elements due to its excellent optical properties.
The lens has a diameter of 25.4 mm and a thickness at the edge of 2.7 mm. The center thickness of the lens is 3 mm. The effective focal length (EFL) of the lens is 450 mm, which is the distance over which the lens will focus parallel rays of light. The radius of curvature of the lens is 232.515 mm on the curved side.
The lens does not come with any coating, as indicated by the empty "coating" field in the item data. This means that the lens will not have any additional protective or enhancing layers, which could affect its performance in certain applications.
The lens is in stock and available for purchase, as indicated by the "weblink status" field in the item data. More information about this lens, including pricing and availability, can be found on the Standa website.