67-282 50mm Dia. UVFS Aspheric Lens; EFL=50mm; NA=0.5 NIR 600-1050nm

This is the 67-282 model from Edmund Optics, a 50mm Dia. UVFS Aspheric Lens with an effective focal length (EFL) of 50mm and a numerical aperture (NA) of 0.5, designed for use in the near-infrared spectrum of 600-1050nm.

The lens is made from high-quality UV fused silica (HPFS7980 Corning), a material known for its excellent transparency and durability. The aspheric design of the lens allows for superior optical performance, reducing spherical aberration and distortion compared to traditional spherical lenses.

The lens has a diameter of 50mm and a thickness of 3.49mm at the edge, with a center thickness of 19.5mm. The front and back surfaces of the lens are coated with Edmund Optics' NIR coating, specifically designed for the 600-1050nm spectrum, ensuring optimal light transmission and reducing unwanted reflections.

The lens's geometry includes an inner radius of 0mm, an outer radius of 0mm, and a clear aperture of 50mm. The lens has a back focal length (BFL) of 36.63mm and a k1 value of -1.215776, indicating a moderate degree of negative curvature.

This lens is ideal for applications that require high-quality imaging in the near-infrared spectrum, such as night vision, thermal imaging, and scientific research. With its superior optical performance, robust construction, and wide spectral range, the 67-282 model from Edmund Optics is a versatile and reliable choice for a variety of optical systems.