LA1540-A N-BK7 Plano-Convex Lens; Dia:0.5 in; f=15.0 mm ARC 350-700nm

The LA1540-A 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 optical glass known for its excellent optical properties and high damage threshold. The lens has a diameter of 0.5 inches (12.7 mm) and a focal length of 15.0 mm, making it suitable for use in systems where a long focal length is required.

The lens features an antireflection coating, designed to reduce surface reflections and increase transmission in the 350-700 nm spectral range. This coating is applied to both the front and back surfaces of the lens, ensuring high transmission and low loss over the entire spectral range. The lens has a clear aperture of 0.5 inches (12.7 mm), providing a wide field of view and high light gathering capability.

The LA1540-A has a spherical surface geometry, with a radius of curvature of 7.7 mm on the convex side. This geometry provides excellent imaging performance, with low spherical aberration and high resolution. The lens has a thickness of 1.8 mm at the edge and 5.1 mm at the center, providing excellent mechanical stability and resistance to damage.