严济慈教授是我国现代物理学研究工作开创者之一,我国光学仪器工业奠基者之一,也是我国著名的教育家和老一辈科普作家。今年1月23日是严济慈教授90诞辰,谨以此文表示对严济慈教授的祝贺与敬意。严济慈教授,字慕光,号厂佛,清光绪庚子年12月初4(1901年1月23日)出生在浙江省东阳县下湖严村一个农民家庭。1918年考入南京高等师范学校, Professor Yan Jici is one of the pioneers of modern physics research in China, one of the founders of China’s optical instrument industry, and a famous educator and science writer of the older generation in China. January 23 this year, Professor Yan Jici 90 birthday, would like to express his congratulations and respect for Professor Yan Jici. Professor Yan Jici, the word Mu Guang, No. Factory Buddha, Qing Guangxu Gansu early December 4 (January 23, 1901) was born in a village of farmers under the auspices of Lake Village, Dongyang County, Zhejiang Province. In 1918 admitted to Nanjing higher normal school,