357610-A 6.325 mm Dia. D-LAK6 Molded Glass Aspheric Lenses; EFL=4 mm; NA=0.62 AR 350-700nm

The 357610-A is a high-quality aspheric lens from Thorlabs, designed with a 6.325 mm diameter and a center thickness of 2.953 mm. This lens is made from D-LAK6 glass, a molded glass material with exceptional optical properties, and features an effective focal length (EFL) of 4 mm and a numerical aperture (NA) of 0.62.

The lens's aspheric design, characterized by its radii of curvature (r1 and r2) and conic constant (k1), helps minimize spherical aberration, providing superior image quality. The front and back surfaces of the lens are coated with a broadband anti-reflection coating (AR 350-700nm), which enhances transmission and reduces unwanted reflections.

This lens is suitable for use in a wide range of applications, including imaging systems, beam shaping, and laser applications, particularly where high resolution, large aperture, and wide field of view are required. The lens's robust construction and high-performance characteristics make it an ideal choice for researchers and engineers in various fields, such as biomedical research, machine vision, and optical metrology.

Please note that the lens's geometry and coating specifications are optimized for the specified wavelength (410 nm). Always ensure that the lens is suitable for your specific application and wavelength requirements.