The 39-541 is a Plano-Convex lens with a diameter of 50.8mm and a focal length of 200mm, sourced from Edmund Optics. This lens is made of ZnSe material, specifically identified as 'znse marple-1964'. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties.
The lens's geometry includes a thickness of 2.35mm at the edge and 3.5mm at the center. The inner radius is 0mm, and the outer radius is also 0mm, indicating a plano surface on one side and a curved surface on the other. The lens's shape is spherical, and it is designed to operate at a wavelength of 10600nm.
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