| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel optical transceiver without collision with other infrared ray device. SOLUTION: The data transceiver 100 utilizing optical radiation includes a transmitter assembly 104 provided with a light emitting device 108 operated at a wavelength band of 850-950nm and a light emitting device 112 operated at a wavelength band of 1300-1500nm and a receiver assembly 116 provided with a broad band optical detector 120 receiving a signal sent at both the bands, or the receiver 116 includes the broad band optical detector 120 and a 2nd photo detector operated only at either of both the bands, and the receiver subtracts the signal received by the 2nd photo detector from the signal received by the broad band optical detector 120 to separate the received signal by the 1st and 2nd bands. |
