39-509 12.7mm Dia. ZnSe Aspheric Lens; EFL=12.7mm; NA=0.5 BBAR 8-12µm

The 39-509 is a high-quality aspheric lens offered by Edmund Optics, designed for use in the 8-12µm spectral range. This lens, with a diameter of 12.7mm and a focal length of 12.7mm, is made from ZnSe (Zinc Selenide) material, a popular choice for its excellent optical properties and durability.

The lens features a BBAR (Broadband Anti-Reflection) coating on both the front and back surfaces, which significantly reduces reflection losses and improves transmission across the entire spectral range. This coating enhances the lens's performance in various applications, including infrared (IR) imaging, spectroscopy, and beam shaping.

The lens's geometry includes an inner radius of 0mm, an outer radius of 0mm, a thickness at the edge of 2.39mm, and a thickness at the center of 3.5mm. The effective focal length (EFL) is 11.25mm, and the numerical aperture (NA) is 0.5. The aspheric design of the lens helps correct spherical aberration, providing superior image quality and improving the system's overall performance.

The 39-509 lens is currently in stock and available for immediate shipping. For more information, including technical drawings and specifications, please refer to the provided weblink.