我是在今年的“五·一”节前往复旦宿舍蔡教授家采访他的。选定这样一个全世界劳动者的节日采访一位全国老劳模,倒也不是我的刻意安排,而实在是因为他的忙。虽说蔡教授早已于1992年办了离休,但他是一位卓有成就的电光源专家,而这几年上海城市的发展当然又离不开照明,于是南浦大桥、杨浦大桥等上海一些标志性建筑的照明上,都留下了蔡教授智慧和汗水的印迹。除此之外,他还要著书立说,把他几 I interviewed Professor Cai at the Fudan University quarters this (May 1) time this year. The selection of such a festival of laborers around the world as an interview with a national model worker is not my intentional arrangement, but because of his busy schedule. Although Professor Cai had already retired in 1992, he is an accomplished electric light source expert. In recent years, of course, the development of Shanghai’s urban area can not be achieved without lighting. Therefore, some iconic Shanghai landmark such as Nanpu Bridge and Yangpu Bridge Architectural lighting, have left Professor Cai wisdom and sweat marks. In addition, he also wrote a book, put him a few