22-779 12.5mm Dia. Germanium Infrared Aspheric Lens; EFL=9.5mm; NA=0.65 BBAR 8-12µm

This is a high-quality 22-779 Germanium Infrared Aspheric Lens, sourced from the renowned optical vendor, Edmund Optics. The lens boasts a 12.5mm diameter and an effective focal length of 9.5mm, making it suitable for a wide range of infrared applications.

The lens is crafted from Germanium burnett, a material known for its excellent transmission properties in the infrared spectrum, particularly between 8 and 12µm. This makes the lens ideal for use in thermal imaging, night vision, and other infrared-based technologies.

The lens features a high numerical aperture (NA) of 0.65, which allows for a wide angle of view and increased light-gathering capabilities. This can be particularly beneficial in low-light conditions or where high-resolution imaging is required.

The lens also features an advanced broadband anti-reflection (BBAR) coating on both the front and back surfaces. This coating reduces surface reflections, thereby improving transmission and enhancing the overall performance of the lens.

The lens geometry includes a range of parameters, such as a 28.564mm radius of curvature (R1), a 0mm radius of curvature (R2), and an 8.25mm back focal length (BFL). The lens also has a center thickness of 5mm and an edge thickness of 4.36mm.

The lens is available for purchase through the Edmund Optics website, where it is listed as being in stock. For more detailed specifications and purchasing information, please refer to the provided weblink.