LB1157-A N-BK7 Bi-Convex Lens; Dia:6.0 mm; f=10.0 mm ARC 350-700nm

The LB1157-A is a high-quality bi-convex lens from Thorlabs, designed with a spherical surface on both sides. This lens is fabricated from N-BK7, a popular glass type known for its excellent optical properties, making it an ideal choice for various applications.

The lens boasts a 6.0 mm diameter, providing a decent field of view while maintaining a manageable size. It has a center thickness of 2.4 mm and an edge thickness of 1.5 mm, ensuring robustness and resistance to damage. The effective focal length (EFL) of this lens is 10.0 mm, which is a common choice for many optical systems due to its versatility.

The LB1157-A features an anti-reflection coating (ARC) optimized for the 350-700 nm wavelength range. This coating reduces surface reflections, enhancing the transmission of light through the lens. The coating is applied to both the front and back surfaces, ensuring optimal performance from all directions.

This lens is a convex-convex (CC) type, meaning both surfaces are convex, or outwardly curved. This design provides a strong focusing power, making it suitable for use in imaging systems, beam shaping, and other applications where precise focusing is required.