LB1437-B N-BK7 Bi-Convex Lens; Dia:1 in; f=150.0 mm ARC 650-1050nm

The LB1437-B N-BK7 Bi-Convex Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of precision photonics. This lens, with a diameter of 1 inch, is designed for use in the spectral range of 650-1050nm, making it suitable for a wide range of applications in the near-infrared region.

The lens features a bi-convex geometry, meaning it has two spherical surfaces that are both convex, or outwardly curved. This design is often used to achieve specific optical properties, such as a particular focal length or dispersion characteristic. In this case, the effective focal length (EFL) of the LB1437-B is 150mm, providing a moderate level of magnification.

The lens is made from N-BK7, a type of borosilicate glass that is widely used in optical systems due to its excellent optical properties and chemical resistance. The base shape of the lens is circular, with a thickness of 2mm at the edge and 3.1mm at the center. The inner and outer radii are both 0, indicating a symmetrical design.

The LB1437-B is coated with a broadband anti-reflection coating, denoted as "tho b bbar" for both the front and back surfaces. This coating is designed to reduce reflection and increase transmission across the specified wavelength range, enhancing the performance of the lens in its intended application.