This is a Plano-Convex Lens, type of Spherical Lens, offered by Standa. The lens has a circular base shape 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 2.9 mm. The center thickness of the lens is 3 mm. The effective focal length (EFL) of the lens is 1300 mm, which is the distance over which the lens will focus parallel rays of light. The radius of curvature (R1) of the lens is 671.71 mm.
The lens does not come with any coating, as indicated by the empty 'coating' parameter in the item data. This means that it is uncoated, which may affect its performance in certain applications. However, uncoated lenses can be advantageous in some situations, such as when cost or simplicity is a major concern.
The lens is currently in stock and more information about it can be found on Standa's website.