The 16-994 is a high-precision aspheric lens, 15mm in diameter, designed for use in the shortwave infrared (SWIR) range of 900-1700nm. This lens is manufactured by Edmund Optics, a leading provider of optical components, and is available for purchase through their website.
The lens is made from N-SF6 Schott glass, a material known for its excellent transmission properties in the SWIR range. It features a numerical aperture (NA) of 0.66, which is significantly higher than many other lenses in its class, allowing for greater light-gathering capability and improved image resolution.
The lens has an effective focal length (EFL) of 11.25mm, making it suitable for a wide range of applications where compactness and high performance are required. The aspheric design of the lens helps to correct spherical aberration, a common issue in traditional spherical lenses, resulting in improved image quality and reduced distortion.
The lens is coated with Edmund Optics' SWIR-Plus coating, which is specifically designed for use in the 900-1700nm range. This coating helps to enhance the lens's transmission properties, reducing reflection and improving overall light transmission.
The lens has a center thickness of 10mm and an edge thickness of 6.67mm, providing a robust and durable construction. The front and back surfaces of the lens are coated with the same SWIR-Plus coating, ensuring optimal performance from all angles.