BICC-50.8/200.0UV 50.8 mm Dia. x -197 mm FL; Uncoated; Double-Concave Lens

This is a Spherical Lens (Concave-Concave) type optical component with a diameter of 50.8 mm, sourced from the reputable vendor Laser Components. The lens features a double-concave design, with radii of curvature R1 and R2 set at -200 mm and 200 mm respectively. This specific model is uncoated, offering a unique set of properties and applications.

The lens has an edge thickness of 7.7 mm and a center thickness of 4.5 mm, providing structural integrity and precision. The effective focal length (EFL) is -197 mm, indicating that it is a diverging lens, which spreads out light rays that pass through it. This can be useful in various applications where beam expansion is required.

The material used for this lens is fused sil mal-1965, which is known for its high transparency and durability. The lens is designed to operate at a wavelength of 248 nm, making it suitable for use in ultraviolet (UV) applications.

Please note that the lens is uncoated, which means it does not have any additional layers to enhance its optical properties or protect it from environmental factors. This could result in higher susceptibility to damage and lower light transmission compared to coated lenses. However, uncoated lenses can offer other advantages, such as lower cost and the ability to customize coatings based on specific application needs.

For more detailed information, including datasheets and availability status, please refer to the provided weblink: https://www.lasercomponents.com/fileadmin/user_upload/home/Datasheets/lc-optics/substrates/biconvex_biconcave_lenses.pdf