The 39-542 is a high-quality Plano-Convex lens, boasting a 12.7mm diameter and a focal length of 12.7mm, specifically designed for use in the 8-12µm wavelength range. This lens is sourced from the reputable vendor, Edmund Optics, and is readily available for immediate use.
The lens is constructed from ZnSe (Zinc Selenide) material, identified by the catalog number "znse connolly". This material is renowned for its excellent optical properties, making it an ideal choice for infrared applications. The lens features a front and back coating of "edm dbbarl znse 812", which is a broadband anti-reflection (BBAR) coating, further enhancing its performance in the specified wavelength range.
The lens geometry includes a thickness of 1.83mm at the edge and 3mm at the center. The inner and outer radii are 0mm, indicating a plano surface on both sides. The effective focal length (EFL) is 12.7mm, which is also the same as the focal length.
This lens is a Spherical Lens, with a Sub Type of Plano-Convex and a Base Shape of Circular. It is available directly from the vendor's website, with the weblink provided in the item data. The weblink status indicates that it is currently in stock, making it an ideal choice for immediate optical needs.