Edmund Optics is offering hemispherical lenses made from sapphire. The lenses are well suited for a wide variety of applications, including use in fibre communications equipment, endoscopes, microscopes, optical pick-up devices, and laser measurement systems.
The lenses are made from Sapphire, a hard, tough material that can withstand exposure to harsh chemicals and extreme temperatures, making the lenses particularly suitable for use is severe environments.
Sapphire also features a high index of refraction and excellent broadband transmission characteristics. These half-ball lenses offer a very short back focal length, along with a flat surface that facilitates easy mounting.