LB5766 12.7 mm Dia. CaF2 Double-Convex Lens; EFL=15mm Uncoated

The LB5766 is a spherical lens with a base shape of a circle, sourced from the reputable vendor Thorlabs. This lens is a double-convex type, featuring two convex surfaces. The lens has a diameter of 12.7 mm, making it suitable for applications requiring compact optical components.

The lens's geometry includes a thickness of 2 mm at the edge and 5.6 mm at the center. The effective focal length (EFL) is 15 mm, which is a crucial parameter for determining the lens's focusing power. The first radius of curvature (R1) is 12.1 mm, while the second radius of curvature (R2) is -12.1 mm, indicating the lens's double-convex nature.

The lens is made of Calcium Fluoride (CaF2), identified by the Material ID "caf2 mal-1963". This material is known for its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum. The wavelength of 588 nm suggests that this lens is designed for use in the visible light spectrum.

Notably, this lens is uncoated. Coatings are often applied to lenses to enhance their performance by reducing reflections, increasing transmission, or providing other desirable optical properties. However, this lens is in its bare form, offering users a blank slate for customization or specific application requirements.

For more information, including current availability and purchasing details, please refer to the vendor's website using the provided weblink.