彩色投影电视在七十年代得到了新生和发展。近年来,日本、美国、西德等国每年投入市场的各种不同类型的彩色投影电视设备不下10万台,日本几乎所有生产家用电器的主要公司都在对它进行研制或生产,大有方兴未艾之势。究其根源,主要有以下两方面: 其一,彩色电视机的普及、彩色电视节目 Color projection television was reborn and developed in the seventies. In recent years, Japan, the United States, West Germany and other countries each year into the market of different types of color projection television equipment no less than 100,000 units, almost all of Japan’s major home appliances production companies are developing or producing it, in the ascendant The trend. The root causes, mainly in the following two aspects: First, the popularity of color television sets, color television programs