16-294 18mm Dia. S-LAH64 NIR Aspheric Lens; EFL=15mm; NA=0.6 SWIR-Plus 900-1700nm

The 16-294 is a high-performance aspheric lens designed for use in the near-infrared (NIR) spectrum, specifically for wavelengths between 900 and 1700nm. This lens is manufactured by Edmund Optics, a leading provider of optical components, and is available for purchase through their website.

The lens features a diameter of 18mm and a numerical aperture (NA) of 0.6, making it suitable for a wide range of applications. The effective focal length (EFL) of the lens is 15mm, which is a common choice for many optical systems due to its versatility.

The lens is made from S-LAH64, a high-quality optical glass from Ohara that offers excellent transmission in the NIR spectrum. The lens is coated with Edmund Optics' SWIR-Plus 900-1700nm coating on both the front and back surfaces, which further enhances its performance in the NIR range.

The geometry of the lens includes a center thickness of 6.2mm and an edge thickness of 2.55mm. The front and back radii of curvature are 11.65mm and 0mm, respectively, and the lens has a conic constant of -1.002. These parameters contribute to the lens's high optical quality and low distortion.