These spherical lenses, crafted from germanium, are ideal for infrared applications such as thermal imaging and gas analysis systems. They feature diverse configurations including plano-concave, plano-convex, and bi-convex designs, with options for anti-reflective coatings. Suppliers like Henan UM Optics offer high-purity germanium lenses tailored to specific optical needs. On FindLight, buyers can compare specifications, request pricing, and connect directly with manufacturers without any registration required.