LA1074-A N-BK7 Plano-Convex Lens; Dia:0.5 in; f=20.0 mm ARC 350-700nm

The LA1074-A is a plano-convex lens made of N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. This lens, sourced from Thorlabs, has a diameter of 0.5 inches (12.7 mm) and a focal length of 20.0 mm. The lens's geometry includes a thickness of 1.8 mm at the edge and 4 mm at the center, with a back focal length of 17.3 mm and a radius of curvature of 10.3 mm.

The lens is designed for use in the visible spectrum, specifically at a wavelength of 587.6 nm. It features an anti-reflection coating (ARC) for the wavelength range of 350-700 nm on both the front and back surfaces, which helps to minimize losses due to reflection. This coating enhances the lens's performance, making it suitable for various applications that require high transmission and low reflection.

The lens's shape is spherical, a common geometry in optical systems due to its ease of manufacturing and versatility. The LA1074-A is available for purchase from Thorlabs, as indicated by the "weblink status" field, and it comes with detailed product information on the vendor's website.