This is the 16-996 model from Edmund Optics, a high-precision aspheric lens with a 20mm diameter and a numerical aperture of 0.8. The lens is designed for use in the shortwave infrared (SWIR) region, specifically between 900 and 1700nm.
The lens is made from N-SF6 Schott, a material known for its excellent transmission properties in the SWIR region. It has an effective focal length (EFL) of 12.5mm, making it suitable for a variety of imaging applications. The lens also features a high numerical aperture (NA), which allows for a greater light-gathering capability and improved resolution.
The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional spherical lenses. This results in improved image quality, with less distortion and greater sharpness. The lens has a center thickness of 10.5mm and an edge thickness of 5.01mm, providing structural integrity and resistance to deformation.
The lens is coated with Edmund Optics' SWIR-Plus coating, which is specifically designed for use in the 900-1700nm region. This coating helps to enhance the transmission properties of the lens, reducing reflection and increasing the amount of light that passes through.
The lens is currently in stock and available for purchase through the Edmund Optics website. The provided weblink leads directly to the product page for easy access and ordering.