355440-C 4.7 mm Dia. D-ZLAF52LA Molded Glass Aspheric Lenses; EFL=2.8 mm; NA=S1:0.26; S2:0.52 AR 1050-1700nm

The 355440-C is a high-quality aspheric lens from Thorlabs, designed with a 4.7 mm diameter and a molded glass construction using D-ZLAF52LA material. This lens is specifically engineered for use in the 980 nm wavelength range, offering exceptional performance and precision.

The lens boasts an effective focal length (EFL) of 2.8 mm, providing a compact and efficient optical solution. The aspheric design of the lens helps to minimize spherical aberration, ensuring superior image quality and resolution. The lens has a high numerical aperture (NA) of 0.26 for S1 and 0.52 for S2, enabling a wide field of view and excellent light-gathering capabilities.

The 355440-C lens features advanced anti-reflective (AR) coatings on both the front and back surfaces, optimized for the 1050-1700 nm wavelength range. These coatings significantly reduce surface reflections, improving transmission and enhancing overall system performance.

This lens is available for purchase directly from Thorlabs, with the weblink provided in the item data indicating a valid product page with the lens currently in stock. The 355440-C is an excellent choice for a wide range of optical applications, offering a combination of high performance, compact design, and versatile wavelength compatibility.