This is a Plano-Concave Lens from Standa, a renowned vendor in the optical industry. The lens, which is part of the Spherical Lens category, is specifically designed with a Base Shape of Circular for versatile applications.
The lens has a diameter of 12.7 mm and a thickness edge of 3 mm, ensuring durability and stability. The thickness center is 2.7 mm, indicating a slight concavity. The Effective Focal Length (EFL) is -150 mm, which is typical for Plano-Concave lenses and contributes to its light-bending properties.
The lens is made from CAF2 (Calcium Fluoride) material, identified as mal-1963 in the Material ID. This material is known for its excellent transparency in the infrared region, making it suitable for applications involving longer wavelengths such as 2940 nm, as specified in the item data.
Notably, this lens does not have any coating, as indicated in the coating parameter of the item data. This means that the lens will not have any additional protective or enhancing layers, which could affect its performance in certain applications.