49-592 15mm Dia. UVFS Aspheric Lens; EFL=20mm; NA=0.38 NIR 600-1050nm

The 49-592 is a high-performance aspheric lens, designed and manufactured by Edmund Optics. This lens is characterized by its 15mm diameter and a numerical aperture (NA) of 0.38, making it suitable for a wide range of applications. The lens is made from UV fused silica, a material known for its excellent transparency across a broad spectrum, including the near-infrared (NIR) region of 600-1050nm.

The lens features an effective focal length (EFL) of 20mm, which is the distance over which incident light rays are brought to a focus. This EFL, combined with the lens's NA, allows for a wide field of view and high light-gathering capability. The lens also boasts a high-quality anti-reflective coating, specifically designed for the NIR region, which further enhances its performance by reducing surface reflections and increasing transmission.

The 49-592 lens has a unique aspheric surface geometry, which is designed to correct spherical aberration, a common optical defect that can lead to distorted or blurry images. This aspheric design ensures that the lens delivers sharp, clear images across its entire field of view.

In terms of dimensions, the lens has a thickness of 2.68mm at the edge and 6mm at the center. The front and back surfaces of the lens are coated with the same NIR coating, providing consistent performance across the entire lens.