87-997 50mm Dia. Germanium Infrared Aspheric Lens; EFL=25mm; NA=1 BBAR 8-12µm

This is the 87-997 model from Edmund Optics, a 50mm diameter Germanium Aspheric Lens, specifically designed for infrared applications with a wavelength of 4000nm. The lens boasts an effective focal length of 25mm and a numerical aperture of 1, ensuring high-resolution imaging and efficient light collection.

The lens is made of Germanium burnett, a high-refractive index material, which is ideal for infrared applications. It features a unique aspheric design, which eliminates spherical aberration and provides superior image quality. The lens has a center thickness of 7.75mm and an edge thickness of 2.5mm, offering excellent durability and resistance to mechanical stress.

The lens is coated with BBAR 8-12µm, a broadband anti-reflection coating that reduces surface reflections and increases transmission in the infrared spectrum. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance and longevity.

The 87-997 model is currently in stock and available for purchase on the Edmund Optics website. With its advanced features and high-quality construction, this lens is an excellent choice for a wide range of infrared imaging applications.