13-496 10mm Diameter S-LAH64 NIR Aspheric Lens with EFL=8mm and NA=0.63 Uncoated

The 13-496 is a high-quality aspheric lens offered by Edmund Optics, designed for use in the near-infrared (NIR) spectrum with a wavelength of 780nm. This lens is made from S-LAH64, a material known for its excellent optical properties in the NIR range.

The lens features a 10mm diameter and a relatively large numerical aperture (NA) of 0.63, indicating a wide acceptance angle and high light-gathering capability. The effective focal length (EFL) of this lens is 8mm, making it suitable for applications that require a moderate focal length.

The lens is uncoated, which means it does not have any anti-reflective coatings. While this may result in higher reflective losses, it can also make the lens more cost-effective and suitable for applications where such coatings are not necessary or desirable.

The lens's geometry is defined by several parameters, including its inner and outer radii, thickness at the edge and center, and various aspheric coefficients. These parameters contribute to the lens's unique optical performance and make it suitable for a wide range of applications.

Please note that the lens's front surface has a very small but non-zero radius of curvature (0.00019329m), which may need to be considered in certain applications. The lens also has a very small aspheric term (j front), indicating a high degree of sphericity.