LD7503-E3 25.4 mm Dia. ZnSe Double-Concave Lens; EFL=-50mm 7-12µm

The LD7503-E3 is a high-quality double-concave lens, boasting a 25.4 mm diameter and a center thickness of 2 mm. Manufactured by Thorlabs, this lens is designed for use with a wavelength of 10600 nm and is crafted from ZnSe (Zinc Selenide) material, specifically the ZnSe CONNOLLY variant. The lens features an effective focal length (EFL) of -50 mm, making it suitable for a variety of applications.

The LD7503-E3's concave-concave design is spherical, with radii of curvature R1 and R2 measured at -140.8 mm and 140.8 mm, respectively. The lens's inner and outer radii are both 0, indicating a uniform curvature. The lens's coating, THo E3ZnSeARC7000120, is applied to both the front and back surfaces, enhancing its performance and durability.

This lens is a versatile optical component, ideal for use in the mid-infrared region of the spectrum. Its double-concave design and high-quality construction make it a reliable choice for a wide range of applications. The lens's specifications, as detailed above, make it an excellent match for systems operating at 10.6 µm, such as CO2 lasers.

For more information, including availability and pricing, please refer to the vendor's website at https://www.thorlabs.com/thorproduct.cfm?partnumber=LD7503-E3.