"Eight Large Items": The Cornerstone of China's Optical Engineering
Changchun Institute of Optics, Fine Mechanics and Physics
To improve the country's lagging situation in optical instrument manufacturing, a research team led by WANG Daheng from the Changchun Institute of Optics, Fine Mechanics and Physics began developing China's own precision optical instruments.
By 1958, the research team had developed eight optical instruments, also called the "Eight Large Items" (Badajian), marking the important beginning of China's optical instrument manufacturing industry.