67-283 50mm Dia. UVFS Aspheric Lens; EFL=60mm; NA=0.42 NIR 600-1050nm

The 67-283 is a high-performance aspheric lens, designed and manufactured by Edmund Optics. This lens boasts a 50mm diameter and a numerical aperture (NA) of 0.42, 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 60mm, which is the distance from the lens's principal point to its focal point. This EFL makes the lens suitable for moderate magnification applications. The lens also has a high refractive index, which contributes to its ability to focus light to a small spot, increasing its resolution and light-gathering capability.

The 67-283 lens has a unique aspheric surface geometry, which helps to correct spherical aberration, a common issue in traditional spherical lenses. This aspheric design allows for a more compact and lightweight lens while maintaining high image quality.

The lens is coated with Edmund Optics' NIR coating, designed specifically for the 600-1050nm region. This coating enhances the lens's transmission in the NIR region, reducing reflection and improving overall light throughput.