0　前言时光飞弛 ,《中国照明电器》创刊已有 30周年 ,2 0 0 1/11期又适逢刊物出版第 2 0 0期。这 30年光阴 ,也正好是电光源在国内外继续创新蓬勃发展的时期。众所周知 ,电光源是一门与国民经济紧密联系的综合性学科。在一个多世纪的岁月里 ,电光源发展取得了重大的成果 ,它体 0 Preface Time flies, “China Lighting Appliance” has been the 30th anniversary of the publication, 200 0 1/11 and coincides with Publication Publication No. 200. This 30 years time is just the time when electric light source continues to flourish at home and abroad. As we all know, electric light is a comprehensive discipline closely linked with the national economy. In more than a century, great progress has been made in the development of electric light sources