16-978 25mm Dia. N-BK7 Precision Aspheric Lens; EFL=37.5mm; NA=0.33 NIR-Plus 600-1050nm

The 16-978 is a high-precision asperic lens, boasting a 25mm diameter and a numerical aperture of 0.33, specifically designed for use within the near-infrared spectrum of 600-1050nm. This lens is sourced from Edmund Optics, a trusted vendor known for their quality optical components.

The lens is crafted from N-BK7, a type of borosilicate glass known for its excellent optical properties, including a high refractive index and low dispersion. This makes the lens ideal for applications that require high resolution and minimal chromatic aberration.

The asperic design of the lens, characterized by its non-spherical shape, allows for superior optical performance compared to traditional spherical lenses. This is achieved through the precise control of the lens's surface curvature, which significantly reduces spherical aberration and distortion.

The lens features an effective focal length (EFL) of 37.5mm, a crucial specification that determines the lens's magnification power. This EFL, combined with the lens's NA and diameter, makes it suitable for a wide range of applications, including imaging, beam shaping, and laser focusing.

The lens is coated with Edmund Optics' NIR-Plus 600-1050nm coating on both the front and back surfaces. This anti-reflective coating is specifically designed to enhance the lens's performance within the near-infrared spectrum, reducing surface reflections and improving transmission.