LB1917-A N-BK7 Bi-Convex Lens; Dia:2 in; f=300.0 mm ARC 350-700nm

The LB1917-A is a high-quality bi-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 manufactured by Schott, a leading glass manufacturer.

The lens features a diameter of 2 inches (50.8 mm) and a focal length of 300.0 mm. The bi-convex design, with radii of curvature of 308.2 mm on both sides, provides a large clear aperture and excellent image quality. The lens has a center thickness of 5.1 mm and an edge thickness of 3 mm, providing robustness and durability.

The lens is coated with a broadband anti-reflection coating, designed to reduce surface reflections and increase transmission in the 350-700 nm range. This coating is applied to both the front and back surfaces of the lens, ensuring high-transmission performance.

The LB1917-A is available for purchase directly from Thorlabs, and the company's website indicates that it is currently in stock. This makes it an ideal choice for researchers and engineers who need a high-quality, readily available lens for their optical systems.