354430-B 2 mm Dia. D-ZK3 Molded Glass Aspheric Lenses; EFL=5 mm; NA=0.15 AR 600-1050nm

The 354430-B 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 numerical aperture (NA) of 0.15, which is ideal for applications requiring a wide angle of view and high light-gathering capability.

The lens is coated with a broadband anti-reflective coating, specifically designed for the 600-1050nm wavelength range. This coating enhances the lens's transmission efficiency and reduces unwanted reflections, making it suitable for use in various applications, including beam shaping, collimation, and imaging.

The lens's geometry is defined by its inner and outer radii, both of which are 0 in this case. The lens has a thickness of 0.862 mm at the edge and 0.991 mm at the center. The aspheric design of the lens is defined by its conic constant (k1) of 0 and its aspheric coefficients (a2 to a16), all of which are 0 in this case.