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随着电视接收机的普及,人们已不满足于只看电视台安排的节目,而希望有选择地观看一些自己欣赏的节目了。这一点,虽然电影和磁带录像机能做到,但是价格十分昂贵,不易普及。激光技术的发展,以及激光的单色性好,可聚焦成极细的光束,并有极高的光通密度等特点,给人以新的启迪。七十年代初,荷兰菲利浦公司首次将激光技术运用于电视唱片,并研制成功VLP(Video.Long Play)方式激光刻录、
With the popularization of television receivers, people are not satisfied with looking at the programs arranged by the television stations only, but prefer to watch some programs they enjoy. This point, although the film and video tape recorders can do, but the price is very expensive, not easy to popularize. The development of laser technology, and the monochromatic laser is good, can be focused into a very fine beam, and has a high luminous flux density and other characteristics, giving a new inspiration. The early seventies, the Netherlands Philips for the first time the laser technology used in television recording, and the successful development VLP (Video.Long Play) laser recording,