37-415 10mm Dia. N-SF6 Precision Aspheric Lens; EFL=10mm; NA=0.5 Uncoated

The 37-415 is a high-precision aspheric lens offered by Edmund Optics. This lens, with a catalog number 37-415, is made from N-SF6 Schott material, a high-index glass known for its excellent optical properties. The lens is uncoated, which means it does not have any additional layers to enhance its optical performance or protect it from environmental factors.

The lens has a diameter of 10mm and a numerical aperture (NA) of 0.5. The NA is a measure of the light-gathering ability of the lens and indicates its ability to resolve fine details. A higher NA allows for a larger cone of light to be collected, resulting in a brighter and clearer image.

The lens has an effective focal length (EFL) of 10mm, which is the distance from the lens's principal point to the focal point when the lens is focused at infinity. This EFL makes the lens suitable for applications that require a wide field of view and low distortion.

The lens's geometry is defined by several parameters. The inner radius is 0, and the outer radius is also 0, indicating that the lens is a simple lens without any complex structures. The thickness at the edge is 6.18mm, and the thickness at the center is 7.8mm. The lens's shape is aspheric, meaning it has a surface profile that deviates from a simple sphere or cylinder. This shape helps to correct spherical aberration, a common optical problem that can degrade image quality.

The lens's aspheric surface is defined by several coefficients. The first coefficient (k1) is -0.7095932, and the second coefficient (k2) is 0. There are no other coefficients (k3, k4, etc.) specified, indicating that the lens's aspheric surface is a conic section.