The LB5774 is a high-quality spherical lens from Thorlabs, featuring a double-convex design with a diameter of 25.4 mm. This lens is made from Calcium Fluoride (CaF2) material, specifically identified as "caf2 mal-1963" in the material database. The lens's base shape is circular, and it has a center thickness of 11 mm and an edge thickness of 2 mm, providing a robust structure.
The lens's effective focal length (EFL) is 25.4 mm, which is the same as its diameter, making it a versatile choice for various optical applications. The first and second radii of curvature (R1 and R2) are 20.2 mm and -20.2 mm, respectively, indicating a symmetric double-convex design. The lens does not have any coating specified, which means it is delivered uncoated.
This lens is sourced from Thorlabs, a reputable vendor known for its wide range of optical components. According to the vendor's information, the lens is currently in stock, ensuring quick delivery upon order. The product's webpage provides additional details and specifications, which can be accessed via the provided link.