This is a high-quality Double-Concave Lens from Standa, a renowned vendor in the optical industry. The lens, which is part of Standa's spherical lens collection, is designed with a base shape of a circle and a Sub Type of Spherical Lens (Concave-Concave).
The lens has a diameter of 25.4 mm and a thickness edge of 5 mm. The thickness at the center of the lens is 2.6 mm. The effective focal length (EFL) of the lens is -60 mm, indicating its concave nature. The first radius of curvature (r1) is -62.68488192 mm, and the second radius of curvature (r2) is 62.68488192 mm. The lens does not have an inner or outer radius.
The lens is made of n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The lens is designed to work with a wavelength of 546 nm. It is important to note that the lens does not have any coating, which may affect its performance in certain applications.
This lens is in stock and available for immediate purchase. For more information, please visit the vendor's website using the provided weblink.