G313205525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 725-1050nm

This is a G313205525 double-concave lens, sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics. The lens boasts a base shape of a circle and is designed for use in spherical geometry. It has a diameter of 22.4 mm and a center thickness of 1.5 mm, making it a compact yet robust option for various applications.

The lens has an effective focal length (EFL) of -20 mm, indicating its concave nature. This negative focal length is typical of concave lenses, which are designed to diverge light rays. The lens is made from N-BK7, a popular glass type known for its excellent optical properties, including a high Abbe number and low dispersion.

The G313205525 lens is designed for use within the wavelength range of 725-1050 nm, making it suitable for near-infrared (NIR) applications. It comes with a front and back coating of qio bbar arb2nirnbk7, which enhances its durability and performance in its intended wavelength range.

This lens is currently in stock and can be purchased directly from the Qioptiq Photonics website. Its detailed specifications, including its geometry and material properties, make it a reliable choice for users seeking high-quality optical components.