Optics & Imaging
| Fri 24 Jul 2026
Beijing, July 24 -- Changqing Eng Design Co Ltd and China National Petroleum have submitted a patent application for Lens Light Condensing and Heat Collecting Device and Using Method Thereof. Wang Jiqiang, Li Junjie, Ren Peiqi, Lei Wenxian, Zhao Qing, Li Huashan, Song Xiao, Fu Hao, Lai Chengzhen, Kang Zhen, Jiang Yunhua, Li Kexi..