37-429 25mm Dia. N-BK7 Precision Aspheric Lens; EFL=31.25mm; NA=0.4 Uncoated

This is a high-precision aspheric lens, catalog number 37-429, sourced from the renowned optical vendor, Edmund Optics. The lens is designed for use with a wavelength of 587.6 nm and is made from N-BK7 Schott, a popular material known for its excellent optical properties.

The lens features a base shape of a circle, with a diameter of 25 mm. It has an outer radius of 0 mm and an inner radius of 0 mm. The lens has a thickness of 6.3 mm at the edge and 11.5 mm at the center. The effective focal length (EFL) of the lens is 31.25 mm.

The lens's geometry is defined by its aspheric shape, with a first radius (r1) of 16.15 mm and a second radius (r2) of 0 mm. The back focal length (BFL) of the lens is 23.67 mm. The lens has a numerical aperture (NA) of 0.4.

The lens does not come with any coating, as indicated by the empty 'coating' parameter in the item data. However, it is important to note that coatings can significantly enhance the performance of optical elements, depending on the specific application.

The lens's status is 'in stock' as of the last update, and it is available for purchase through the provided weblink. This lens could be an ideal choice for applications that require high precision and a wide field of view.