| 摘要 |
A hinge structure coupling housing halves and of a device rotatably. The hinge structure comprises a first shaft fixed to the first housing half, a first gear provided on the first shaft, a second shaft fixed to the second housing half, and a second gear provided on the second shaft. The first gear meshes with the second gear such that the first and second gears rotate simultaneously in opposite directions. When the device is an image pickup device 1, its housing halves that have an image pickup unit and a display unit, respectively, are coupled rotatably through the hinge structure.
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