The LA7542-E4 is a 25.4 mm diameter Plano-Convex lens made of ZnSe material, sourced from Thorlabs. This lens is designed for use with a wavelength of 10600 nm and features a front and back coating of tho e4znsearc2000130.
The lens has a plano-convex geometry, meaning one side is flat while the other is curved. The curvature of the lens is defined by a radius (R1) of 35.6 mm. The lens's thickness at the edge is 2 mm, while the center thickness is 4.3 mm.
The Effective Focal Length (EFL) of this lens is 25.4 mm, which is also its diameter. The lens does not have an inner or outer radius. The material ID for this lens is znse marple-1964.
According to the vendor's website, this item is currently in stock, making it readily available for immediate use. The link to the product page on the vendor's website is provided for further reference and detailed specifications.