BICV-FS15 25.4 mm Dia. x -250 mm FL; Uncoated; Double-Concave Lens

The BICV-FS15 is a high-precision double-concave lens, 25.4 mm in diameter, and featuring a focal length of -250 mm. This lens is sourced from WTS Photonics, a reputable vendor in the optical industry. The lens is uncoated, providing a clear, unaltered view of the light passing through it.

The lens is designed with a base shape of a circle and has a spherical geometry. The thickness at the edge of the lens is 2.7 mm, while the center thickness is 2 mm. The effective focal length (EFL) is -250 mm, and the radii of curvature for the first and second surfaces are -230.36 mm and 230.36 mm, respectively. The back focal length (BFL) is 250.69 mm.

The lens is made from fused silica (mal-1965), a material known for its high transparency and resistance to thermal shock. This makes the lens suitable for use in various applications, including lasers, beam shaping, and imaging systems.

The lens is designed to operate at a wavelength of 546.1 nm. It is important to note that the performance of the lens can vary depending on the wavelength of the light it is intended to focus. Therefore, it is crucial to ensure that the lens is suitable for the specific wavelength of your application.