| 摘要 |
A rotary laser irradiating system, comprising a laser projector for performing rotary irradiation of a laser beam, a collimating telescope having a collimation axis in a projecting direction of the laser beam, and a rotation base where the collimating telescope can be rotated around an axial line running perpendicularly to the collimation axis and can be fixed at a predetermined position, whereby the collimating telescope is used for the setting of a tilting direction, and the collimating telescope is rotated when necessary, and collimation can be performed at least in two directions.
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