G063060322 22.4 mm Dia. N-BK7 Mounted Double-Concave Lens; EFL=-40mm 450-700nm

This is a G063060322 model double-concave lens, manufactured by Qioptiq Photonics, featuring a 22.4 mm diameter and a center thickness of 1.5 mm. The lens is made of N-BK7 glass, a popular material in the optical industry due to its excellent optical properties and wide transparency range.

The lens's effective focal length (EFL) is -40mm, indicating its concave nature. This type of lens is often used to diverge light beams or to reduce the convergence of a converging lens system. The lens is designed to operate within the wavelength range of 450-700nm, making it suitable for a wide range of applications, including but not limited to, imaging systems, beam shaping, and laser applications.

The lens is coated with Qio Bbar Arb2visnbk7 on both the front and back surfaces. This coating is designed to enhance the lens's performance by reducing reflection and increasing transmission, thereby improving the overall efficiency of the optical system.

The lens's geometry is spherical, a common shape in optical lenses due to its ease of manufacturing and good optical performance. The lens's radii of curvature are -41.867mm and 41.867mm, respectively, for the first and second surfaces. The lens's inner and outer radii are both zero, indicating that the lens has a uniform thickness across its diameter.