发明名称 |
Optische Übertragungsvorrichtung |
摘要 |
An optical transmission device for providing stable communication with a partner device by reducing errors in optical axis misalignment. The errors are caused by uneven distribution of the light intensity in a received light beam resulting from atmospheric microscopic fluctuations. One embodiment includes a transmission and receiving unit, which employs two photodetectors, one aligned with and the other misaligned with the optical axis of the optical transmission device. Other embodiments employ a movable means for shifting a photodetector or a lens unit relative to the optical axis of the optical transmission device. |
申请公布号 |
DE102004014465(B4) |
申请公布日期 |
2010.05.12 |
申请号 |
DE20041014465 |
申请日期 |
2004.03.24 |
申请人 |
CANON K.K. |
发明人 |
USUI, FUMIAKI;OHMURO, RYUJI |
分类号 |
H04B10/10;H04B10/02;H04B10/18;H04B10/22 |
主分类号 |
H04B10/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|