| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain a high speed optical radio communication function by video signal light with narrow directivity, a light axis adjustment function of the video signal light and an optical radio communication function of an audio signal with simple device constitution. <P>SOLUTION: This optical radio video/audio signal transmitter includes: video signal light emission means 11, 12, 13 for emitting video signal light LB; audio pilot light emission means 14, 15 for superimposing the audio signal light on transmitting side pilot light PB1 to emit light as a transmitting side audio pilot light MPB1; optical axis position detection means 13, 16, 17, 18 for receiving either of receiving side pilot light PB2 or receiving side audio pilot light MPB2 formed by superimposing the audio signal light on receiving side pilot light to detect positional information of an optical axis on the side of the optical radio video signal receiver 2; and optical axis adjustment means 19, 20, 21 for adjusting an emission optical axis so that the emission light axis of the video signal light LB matches to an incident light axis of the video signal light LB in the optical radio video signal receiver 2 based on the detected positional information of the optical axis. <P>COPYRIGHT: (C)2008,JPO&INPIT |
