20世纪发展起来的电话、电视和电脑在21世纪将走向融合,多媒体通信把语音、图象和信息处理融为一体,以电传输为主转向以光传输为主的远程通信和数据通信是信息交换的重要手段,传输方式仍然基于电/光和光/电转换,光电测试仪器成为关键的测试工具。 In the 21st century, telephones, televisions and computers, which developed in the 20th century, will converge. Multimedia communications integrate voice, image and information processing, and telegraphy and telegraphy are mainly information transmission An important means of exchange, transmission is still based on electrical / optical and optical / electrical conversion, photoelectric test equipment as a key test tool.