67-280 25mm Dia. UVFS Aspheric Lens; EFL=20mm; NA=0.63 NIR 600-1050nm

The 67-280 is a high-performance aspheric lens, designed and manufactured by Edmund Optics. This lens, with a diameter of 25mm, is constructed from UV fused silica, a material known for its excellent transparency across a wide spectrum, including the ultraviolet and infrared regions.

The lens boasts a high numerical aperture (NA) of 0.63, indicating its ability to gather and focus light efficiently. This makes it an ideal choice for applications that require high light-gathering capabilities, such as imaging and laser systems.

The aspheric design of the lens helps to reduce spherical aberration, a common optical issue that can lead to distorted images. This is achieved through the precise shaping of the lens, which deviates from the traditional spherical shape. The result is an improved image quality, with less distortion and greater clarity.

The lens is coated with Edmund Optics' NIR coating, designed for the 600-1050nm range. This coating enhances the lens's performance in the near-infrared region, increasing its versatility and applicability in various fields.

The 67-280 lens has an effective focal length (EFL) of 20mm, a crucial specification that determines the lens's magnification power. This EFL, combined with the lens's high NA, makes the 67-280 a versatile lens suitable for a wide range of applications.