LB1757-A N-BK7 Bi-Convex Lens; Dia:1 in; f=30.0 mm ARC 350-700nm

The LB1757-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, a popular borosilicate glass known for its excellent optical properties, making it an ideal choice for applications that require high-performance optical components.

The lens features a diameter of 1 inch (25.4 mm) and a focal length of 30.0 mm, providing a moderate magnification and field of view. The bi-convex design, characterized by two convex surfaces, offers superior focusing capabilities and a wide range of applications, including imaging, beam shaping, and laser focusing.

The LB1757-A is coated with an anti-reflective coating (ARC) optimized for the 350-700 nm wavelength range. This coating reduces surface reflections, enhancing transmission and improving overall system performance. The coating is applied to both the front and back surfaces of the lens, ensuring minimal loss of light and improved signal-to-noise ratio.

The lens has a central thickness of 7.7 mm and an edge thickness of 2 mm, providing robustness and durability. The lens's geometry, including inner and outer radii, is optimized for high-performance applications, ensuring excellent image quality and minimal aberrations.