Ruike Optics is a leading manufacture of optical components and coatings, located in Changchun city. We have a 2000 square meter factory, and more than 30 engineers.the mainly products include: Spherical Lens, Cylindrical Lens,Aspheric Lens, Big Windows, Prisms, Mirrors,Filters and specical coating.We do cutting, grinding,polishing,coating, gule ourself,which can promise fast shipping. We have Zygo Inteferometer, Focal Length Meter,Angular Instruments.Our target is High Precision but not expensive.