This is a Plano-Concave Lens from Standa, a renowned vendor in the optical industry. The lens, which has a base shape of a circle, is designed with a diameter of 12.7 mm and a thickness of 2.4 mm at both the edge and the center. The effective focal length (EFL) of this lens is -60 mm, making it a concave lens.
The lens is made of n-BK7 Schott, a popular optical glass known for its excellent optical properties. The wavelength for this lens is 546 nm. The lens's geometry is spherical, and it does not have any coating, as indicated in the item data.
This lens is suitable for various applications that require a concave lens. It can be used in imaging systems, beam shaping, or any application where light needs to be focused or diverged. The uncoated version of this lens is ideal for applications where low reflection is not a critical factor.
Please note that the link provided in the item data leads to Standa's website, where you can find more information about this lens and other products from the vendor. The link's status indicates that the lens is in stock, ensuring quick delivery upon order.