LA1085-B N-BK7 Plano-Convex Lens; Dia:18.0 mm; f=30.0 mm ARC 650-1050nm

The LA1085-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 manufactured by Schott, a leading glass manufacturer.

The lens has a diameter of 18.0 mm and a focal length of 30.0 mm, making it a versatile choice for many setups. The edge thickness is 1.8 mm, while the center thickness is 4.7 mm, providing a robust and durable structure. The effective focal length (EFL) is also 30.0 mm, and the radius of curvature (ROC) of the curved surface is 15.5 mm. The back focal length (BFL) is 26.8 mm.

The LA1085-B is coated with a broadband anti-reflection coating (ARC) that covers the wavelength range of 650-1050nm. This coating reduces unwanted reflections and increases the transmission of light through the lens, enhancing the overall performance of your optical system.

The lens is spherical in shape, which is a common and reliable choice for many applications. The lack of an inner or outer radius indicates that this lens is a simple plano-convex design, with one flat surface and one curved surface.