首页>
外国专利>
APPARATUS FOR PROJECTING VIDEO PICTURES ON A LARGE SCREEN
APPARATUS FOR PROJECTING VIDEO PICTURES ON A LARGE SCREEN
展开▼
机译:在大屏幕上投影视频图像的装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
The video image projection system of the invention includes two projecting devices formed by cathode ray tubes for projecting a green color onto a projection surface and two other projecting devices for projecting red and blue colors. The two green projecting devices project superimposed images. A circuit is provided for processing a video signal to supply a background signal without fine details to one of the green projection devices and a sharp contour signal to the other green projection device.
展开▼