Large mirrors and telescopes : 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies : 19-21 November 2008, Chengdu, China / by International Symposium on Advanced Optical Manufacturing and Testing Technologies (4th : 2008 : Chengdu, China), Jiang, Wenhan, 1936-, Zhongguo guang xue xue hui, Zhongguo ke xue yuan. Institute of Optics and Electronics, SPIE (Society), State Key Laboratory of Optical Technology for Microfabrication (China), Sichuan Optical Society, Zhongguo guang xue xue hui. Committee of Optical Manufacturing Technology, Guo jia zi ran ke xue ji jin wei yuan hui (China), Zhongguo ke xue yuan