89-609 25mm Dia. Germanium Infrared Aspheric Lens; EFL=20mm; NA=0.63 BBAR 3-12µm

The 89-609 is a high-quality aspheric lens made from germanium burnett, sourced from the renowned optical components vendor, Edmund Optics. This lens is specifically designed for infrared applications, with a wavelength of 4000µm. The lens features a base shape of a circle, with a diameter of 25mm and a thickness edge of 2.5mm.

The lens has an effective focal length (EFL) of 20mm, providing a compact and efficient optical solution. The lens's design includes an inner radius of 0mm and an outer radius of 0mm, contributing to its high-performance capabilities. The lens's thickness at the center is 3.7mm, and it has a back focal length (BFL) of 19.08mm.

The 89-609 lens boasts a high numerical aperture (NA) of 0.63, which allows for a wide angle of view and increased light-gathering capabilities. The lens's front and back surfaces are coated with edm arcedgermanium31, providing excellent anti-reflection properties and ensuring optimal performance in the infrared spectrum.

This lens is available for purchase directly from the Edmund Optics website, and the link provided indicates that it is currently in stock. With its superior specifications and reliable performance, the 89-609 is an excellent choice for a wide range of infrared optical applications.