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目前,有关部门发出通知,禁止营业性放映激光视盘(也称 VCD)故事片。那么,激光视盘是怎么回事呢?这就要说到集现代通信技术、计算机技术和激光电子技术之大成的新技术——激光电视系统。与现有的磁带录像机相比,激光电视系统具有存储量大(一面激光视盘可存储54000幅静止图像或可播放1小时的活动图像),信息保存时间长(50-100年),图像清晰度高,双声道立体声等突出的优点。激光电视系统主要由激光视盘、放送机和电视机三部分构成。直径30厘米的光盘是用特殊的光敏材料制成的
At present, the relevant departments issued a circular banning the commercial display of laser disc (also known as VCD) feature film. So, laser disc is how the case? This is about the modern communications technology, computer technology and laser electronics technology culmination of the new technology - laser TV system. Compared with the existing video tape recorders, the laser TV system has a large storage capacity (54,000 still images can be stored on a laser disc or can play a 1-hour moving image), long information retention time (50-100 years), image sharpness High, two-channel stereo and other prominent advantages. Laser TV system is mainly composed of laser disc, transmitter and TV three parts. Discs 30 cm in diameter are made of a special light-sensitive material