| 摘要 |
PROBLEM TO BE SOLVED: To easily vary the sizes of the bearing of a gimbal by varying the shape of an external-diameter spacer and internal-diameter spacer. SOLUTION: A light guide device has a constitution which can secure a specified pre-load quantity with a pre-load spring (61) even when the bearings (40, 50) are replaced by varying the shapes of the external-diameter spacers (41, 72) and internal-diameter spacers (52, 70) holding the bearings (40, 50) of a couple of gimbals (4, 7). COPYRIGHT: (C)2003,JPO
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