| 摘要 |
PURPOSE:To magnify and project an original mentioned on usual paper, too, by providing a television receiver for displaying a video caught by a television camera on a transmission type surface display element, and a projecting optical device for projecting this video on a screen. CONSTITUTION:An object to be photographed 4 is photographed by a TV camera 1, and its video is converted to a time series electric signal, and transmitted to a TV receiver 2 by a wired cable or a radio. The receiver 2 usually has a transmission type surface display element 2a instead of the cathode ray tube of a TV receiver, formed by many picture elements, an electro-optical element such as a liquid crystal element, etc. is incorporated in each picture element, the quantity of a light source light transmitting through each picture element can be controlled by controlling an electric signal supplied to each picture element by driving an X-Y matrix, and as a result, a static picture or a dynamic picture can be displayed on the transmission type surface display element 2a. |
