Carl Zeiss is a leading global and international company in the field of optics and optoelectronics, providing products and services to customers in the fields of semiconductor technology, industrial optics, life sciences, medicine, ophthalmology and optics. ZEISS operates in China with a focus on medical equipment, eyeglass lenses, industrial measurements, semiconductor industrial equipment, electron microscopes, and microscope equipment. ZEISS has a factory in Guangzhou that produces eyeglass lenses and sells ZEISS lenses, telescopes and astronomical demonstration systems through agents.