G313205329 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 1064nm

This is a G313205329 double-concave lens, sourced from the renowned optical components manufacturer, Qioptiq Photonics. The lens boasts a 22.4 mm diameter and a center thickness of 1.5 mm, making it a robust and compact solution for various optical applications.

The lens is designed with a high-quality N-BK7 glass, a popular choice in the optical industry due to its excellent optical properties and versatility. The N-BK7 glass is known for its low auto-fluorescence, making it suitable for applications that require high sensitivity and low background noise.

The lens features a double-concave geometry, with radii of curvature of -20.833 mm on both sides. This geometry results in a negative focal length of -20 mm, making it ideal for use in imaging systems that require a reduction in the size of the image.

The lens is coated with Qioptiq's high-performance AR coating, specifically designed for YAG lasers. This coating provides excellent anti-reflective properties, reducing surface reflections and increasing transmission, thereby enhancing the overall performance of the optical system.

The lens is available with a wavelength of 588 nm, making it suitable for a wide range of applications, including but not limited to, spectroscopy, interferometry, beam shaping, and imaging.