一、初始的三显象管方法 在彩色电视发展行,并没有彩显管,只是用红、绿、兰三个单色显象管,通过光学方法重合三基色的扫描图象,可以像见,这种设备比较凡杂庞大,很难重合在致,而且,图象得很深,视听范围受到很大限制。 First, the initial three kinescope method in the development of color TV line, and no color tube, but with red, green and blue three monochromatic kinescope, through the optical method to coincide with the three primary colors of the scanned image, you can see This kind of equipment is quite complicated and complicated, so it is hard to coincide. In addition, the image is very deep and the viewing area is greatly restricted.