354280-C 6.5 mm Dia. D-ZK3 Molded Glass Aspheric Lenses; EFL=18.4 mm; NA=0.15 AR 1050-1700nm

The 354280-C is a high-quality aspheric lens, precision-molded from D-ZK3 glass, a unique type of glass known for its excellent optical properties. This lens boasts a 6.5 mm diameter and is designed for use in the 1050-1700nm wavelength range, making it suitable for a variety of applications in the infrared spectrum.

The lens features an effective focal length (EFL) of 18.4 mm, which is the distance from the lens's center to the focal point where light rays converge. This EFL, combined with the lens's 0.15 numerical aperture (NA), allows for a wide field of view and high light-gathering capability.

The 354280-C's aspheric design is a significant advantage over traditional spherical lenses. Aspheric lenses have a more complex surface profile, which reduces spherical aberration and distortion, resulting in sharper images and more accurate light transmission.

The lens is coated with a broadband anti-reflection (AR) coating, which reduces unwanted reflections and increases transmission efficiency. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance in both directions.

The 354280-C is available from Thorlabs, a leading global manufacturer of photonics equipment. According to the vendor's website, the lens is currently in stock, indicating quick and easy availability for users.