{
  "$type": "site.standard.document",
  "description": "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…",
  "path": "/patents/1071768",
  "publishedAt": "2005-12-14T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C15/002",
    "TOPCON CORP [JP]"
  ],
  "textContent": "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.",
  "title": "Surveying apparatus"
}