354430-C 2 mm Dia. D-ZK3 Molded Glass Aspheric Lenses; EFL=5 mm; NA=0.15 AR 1050-1700nm

The 354430-C is a high-quality aspheric lens from Thorlabs, designed with a 2 mm diameter and a focal length of 5 mm. This lens is made from D-ZK3 glass, a molded glass material known for its excellent optical properties. The lens features a high numerical aperture (NA) of 0.15, which allows for a wide angle of acceptance and increased light-gathering capability.

The lens is coated with a broadband anti-reflection coating, specifically designed for the 1050-1700nm wavelength range. This coating reduces surface reflections, thereby increasing transmission and improving overall system performance. The lens has a center thickness of 0.991 mm and an edge thickness of 0.862 mm, providing excellent mechanical stability and resistance to optical distortion.

The aspheric design of the lens helps to correct spherical aberration, a common issue in traditional spherical lenses. This results in improved image quality, making the 354430-C an ideal choice for applications that require high-resolution imaging or laser beam shaping.