LB1056 N-BK7 Bi-Convex Lens; Dia:1 in; f=250.0 mm Uncoated

The LB1056 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 at a focal length of 250.0 mm, making it suitable for a wide range of optical applications.

The lens is made from N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is characterized by a high refractive index and low dispersion, making it an ideal choice for applications that require high-precision imaging or light manipulation. The N-BK7 designation indicates that this particular lens is made from Schott glass, a renowned manufacturer known for its consistent quality and precision.

The LB1056 features a bi-convex geometry, meaning it has a convex shape on both sides. This design provides a high degree of focusing power, making the lens ideal for use in imaging systems, beam shaping, and other applications where precise light control is required. The lens has an effective focal length (EFL) of 250.0 mm, which is the distance from the lens at which a beam of light will be focused to a point.

The lens has a center thickness of 2.6 mm and an edge thickness of 2 mm, providing a robust and durable construction. The inner and outer radii are 0, indicating a symmetrical design that can help to minimize optical aberrations.

Please note that this lens is uncoated. While uncoated lenses can be more cost-effective, they may be more susceptible to surface reflections and other optical losses. Coatings can be applied to reduce these effects, but they may also increase the cost of the lens.

This lens is currently in stock, according to the vendor's website. For more information, including pricing and availability, please refer to the provided weblink.