LB1494-A N-BK7 Bi-Convex Lens; Dia:9.0 mm; f=12.0 mm ARC 350-700nm

The LB1494-A is a high-quality bi-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is fabricated from N-BK7 Schott glass, a popular material known for its excellent optical properties and versatility.

The lens features a diameter of 9.0 mm and a focal length of 12.0 mm, making it a compact yet powerful option for various setups. The edge thickness is 1.8 mm, while the center thickness measures 3.6 mm, providing a robust structure that can withstand typical handling and usage.

The LB1494-A boasts an effective focal length (EFL) of 12.0 mm, calculated as the distance from the lens's center to the point at which light rays converge or diverge. The front and back radii of curvature are 11.7 mm and -11.7 mm, respectively, contributing to the lens's overall optical performance.

This lens also features broadband anti-reflection (BBAR) coatings on both the front and back surfaces, designed to operate within the 350-700 nm wavelength range. These coatings help minimize surface reflections and increase transmission, thereby enhancing the overall efficiency and quality of your optical system.