| 摘要 |
A surveying apparatus includes an irradiation portion provided with an objective lens, and for irradiating a ranging light toward a measured object, a ranging portion for measuring a distance per unit time more than once based on a reflection light reflected by the measured object and entered through the objective lens, a collimation optical system portion for collimating the measured object through the objective lens, the collimation optical system portion being provided with an image processing device configured to obtain a collimation image obtained through the objective lens, and a determination device to determine whether or not a moving obstacle has passed a projection optical path of the ranging light during projecting the ranging light based on an image obtained by the image processing device.
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