| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser communication device in which a partner receiver located in a distant place and having a narrow light receiving range, can surely receive thin laser light when the thin laser light is transmitted in an arrival direction of partner beacon light.SOLUTION: Laser spot light intensity sensors 50a, 50b, 50c, and 50d are provided to detect what kind of a position a laser spot for communication is received at. In accordance with information of the detected position, beacon light is modulated and sent to a partner laser communication device by a beacon transmitter 40. The laser communication device that receives the information, controls a direction of communication laser light to be transmitted on the basis of the information. |
