| 摘要 |
PURPOSE:To allow an inverse reflector of an opposite side to return an inverse reflecting optical beam in response only to a calling of a specific side, by providing an optical beam communication device tracking an angle of an optical axis of transmission/receiving automatically in the inverse reflector provided for the opposite side, for the own side. CONSTITUTION:On a two-axis movable stand 12 of the own ship, an optical beam transmission section 11 and a sighting TV camera 13 are provided. The oppsite ship is provided with an omnidirectional receiver 1 receiving optical beams transmitted and a photo diode 4 is fitted to receive the optical beam and to convert the beam into electric signals. The receiver 1 is controlled for the revolution with a potentiometer 3 and a motor 2 and the azimuth is changed. The optical beam detected at the photo diode 4 is photo-electric converted and transmitted to a code discriminating section 6, where a calling signal from the friend ships only is discriminated and transmitted to a storage section 5. Further, the inverse reflector 7 is provided, which is driven with an azimuth drive servo motor 8 and tracks with an output of the storage section 5 automatically. |
