16-268 12.5mm Dia. N-BK7 NIR Aspheric Lens; EFL=25mm; NA=0.25 VIS Plus 350-700nm

This is a high-quality 16-268 12.5mm Dia. N-BK7 NIR Aspheric Lens, designed for use in the near-infrared (NIR) spectrum with a wavelength of 780nm. The lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase through their website.

The lens is made from N-BK7, a popular borosilicate glass known for its excellent optical properties, including a high Abbe number and low dispersion. This makes it an ideal choice for applications that require high image quality and color correction.

The lens features a 12.5mm diameter and a numerical aperture (NA) of 0.25, which allows for a wide field of view and high light-gathering capability. The effective focal length (EFL) of the lens is 25mm, providing a moderate magnification and a relatively compact optical system.

The lens is coated with Edmund Optics' VIS Plus 350-700nm coating, which enhances its transmission in the visible and near-infrared spectrum. This coating reduces surface reflections and improves the overall efficiency and contrast of the optical system.

The lens has a aspheric shape, which helps to reduce spherical aberration and improve the overall image quality. The lens has a center thickness of 4mm and an edge thickness of 2.43mm, providing a robust and durable design.