LA1708-A N-BK7 Plano-Convex Lens; Dia:1 in; f=200.0 mm ARC 350-700nm

The LA1708-A is a high-quality plano-convex lens, manufactured by Thorlabs, a leading global supplier of photonics equipment. This lens is designed for use in the visible spectrum, with a focal length of 200.0 mm and a diameter of 1 inch (25.4 mm).

The lens is made from N-BK7, a popular optical glass due to its excellent optical properties and wide transmission range. The plano-convex shape, where one side is flat and the other is curved, is ideal for a variety of applications, including beam shaping and focusing.

The lens has a front and back coating of tho a bbar, which is a broadband anti-reflection coating designed to reduce surface reflections and increase transmission in the 350-700 nm range. This coating enhances the lens's performance, making it suitable for use in high-precision optical systems.

The geometry of the lens includes a thickness of 2 mm at the edge and 2.8 mm at the center. The inner and outer radii are 0, indicating a flat inner surface and a curved outer surface. The effective focal length (EFL) is 200 mm, and the back focal length (BFL) is 197.5 mm.