This is a high-precision aspheric lens, catalog number 16-974, offered by Edmund Optics. The lens is designed for use in the near-infrared spectrum, specifically for wavelengths between 600 and 1050nm. It is made from N-SF6 Schott, a material known for its excellent optical properties in this spectral range.
The lens has a diameter of 15mm and a numerical aperture (NA) of 0.66, indicating a high light-gathering capacity. The effective focal length (EFL) is 11.25mm, suggesting a moderate magnification. The lens is coated with Edmund Optics' NIR-Plus 600-1050nm coating, which is specifically designed to enhance performance in the near-infrared spectrum.
The lens geometry is also noteworthy. It has an inner radius of 0mm, an outer radius of 0mm, and a thickness at the edge of 6.67mm. The thickness at the center is 10mm. The aspheric surface is defined by a conic constant of -0.8308645 and a series of aspheric coefficients.
The lens is available for purchase through the Edmund Optics website, and as of the time of data collection, it is in stock. For more detailed information, including technical drawings and performance data, please refer to the product webpage.