PURPOSE: To easily carry the system and further to enlarge a screen size by coupling the calling part and video part of a radio video telephone with optical modulated signals, thereby making signals noncontact and separating them.

CONSTITUTION: The radio video telephone system is roughly divided into a speaking part side 1 and a video part side 5 and composed of a telephone numeral key 3, a speaker 2, a microphone 4 on the speaking part side 1, and lens 6 for video projection on the image video part side 5. A projective screen 9 utilizes a plane capable of screen projection such as a dedicated screen or walls. Then, between the speaking part side 1 and the video part side 5, an electric signal is connected to an optical connector 10 in noncontact state with the optical modulated signal or connected in contact state by the connector. In this case, voice speaking is performed by the speaking part 1, and the separated video part is put on a desk and projected on the screen 9 or projected on the nearby wall.