LA1422-B N-BK7 Plano-Convex Lens; Dia:1 in; f=40.0 mm ARC 650-1050nm

The LA1422-B is a high-quality plano-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, and is specifically designed for use in the 650-1050nm wavelength range.

The lens has a diameter of 1 inch (25.4mm) and a focal length of 40.0mm, making it a versatile choice for many setups. The plano-convex design features a flat front surface and a curved back surface, with a radius of curvature of 20.6mm. This design allows for efficient light collection and focusing, making it ideal for use in imaging systems, beam shaping, and other applications where precise light control is required.

The LA1422-B is coated with Thorlabs' BBAR coating on both the front and back surfaces, which reduces reflection and increases transmission in the specified wavelength range. This coating enhances the lens's performance, making it suitable for use in high-performance optical systems.

The lens has a thickness of 2mm at the edge and 6.4mm at the center, providing rigidity and durability. The inner and outer radii are both 0mm, indicating a uniform curvature. The effective focal length (EFL) of the lens is 40mm, which is a common choice for many optical systems due to its versatility.