LA1608-633 N-BK7 Plano-Convex Lens; Dia:1 in; f=75.0 mm 633nm V-Coat

This LA1608-633 N-BK7 Plano-Convex Lens, offered by Thorlabs, is a high-quality optical component designed for a wide range of applications. The lens boasts a diameter of 1 inch (25.4 mm) and a focal length of 75.0 mm at a wavelength of 633 nm, making it suitable for various optical systems.

The lens is made of N-BK7, a popular glass type in the optical industry due to its excellent optical properties. The plano-convex geometry, where one side is flat and the other is curved, allows for efficient light focusing. The lens's center thickness is 4.1 mm, while the edge thickness is 2 mm, providing robustness and durability.

The LA1608-633 features a V-coat on both the front and back surfaces at 633 nm. This anti-reflection coating reduces surface reflections, enhancing transmission and improving overall system performance. The coating is specifically designed for the 633 nm wavelength, ensuring optimal performance in red light applications.

The item data also provides information about the lens's geometry, including an inner radius of 0 mm and an outer radius of 0 mm. The radius of curvature (r1) is 38.6 mm, and the back focal length (bfl) is 72.02 mm. These parameters are crucial for precise optical system design and simulation.