37-432 30mm Dia. N-SF6 Precision Aspheric Lens; EFL=17.5mm; NA=0.86 Uncoated

This is the 37-432 model from Edmund Optics, a high-precision aspheric lens with a 30mm diameter and a numerical aperture of 0.86. The lens is made from N-SF6 Schott, a high-refractive index glass often used in optical applications due to its excellent transmittance in the visible and near-infrared regions.

The lens features an effective focal length of 17.5mm, making it suitable for applications that require a compact, high-performance lens. The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional spherical lenses, thereby improving the overall image quality.

The lens has a high numerical aperture (NA) of 0.86, which allows for a larger light-gathering capacity and a greater depth of field. This makes the lens ideal for applications that require a wide field of view or high resolution.

The lens is uncoated, meaning it does not have any anti-reflective coatings. While this may result in a higher reflectance loss, it also means that the lens is less susceptible to damage from environmental factors, making it a durable choice for various applications.

The lens has a center thickness of 13mm and an edge thickness of 4.17mm, providing structural integrity and resistance to deformation. The front diameter of the lens is 30mm, and the front surface has a radius of curvature of 14.091mm.