LA1740-A N-BK7 Plano-Convex Lens; Dia:75.0 mm; f=85.0 mm ARC 350-700nm

The LA1740-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 glass type known for its excellent optical properties, and is Schott-manufactured, ensuring a high level of precision and reliability.

The lens has a diameter of 75.0 mm and a focal length of 85.0 mm, making it suitable for use in systems where a long focal length is required. The edge thickness of the lens is 3.0 mm, while the center thickness is 24.2 mm, providing a robust and durable design.

The LA1740-A is coated with a broadband anti-reflection coating, designed to reduce surface reflections and increase transmission in the 350-700 nm range. This makes it ideal for use in systems that require high transmission and low loss, such as imaging systems, spectroscopy, and beam shaping applications.

The lens has a spherical shape, with a radius of curvature of 43.8 mm on the convex side. This shape, combined with the high-quality glass and precise manufacturing, ensures excellent image quality and low distortion.