{
  "$type": "site.standard.document",
  "description": "A surveying instrument (1) for projecting a distance measuring light (3) to an object to be measured (2) and for measuring a distance from a reflected light, comprising at least an image pickup unit for picking up an image of a spreading area of the distance measuring light, and a control unit for…",
  "path": "/patents/1071775",
  "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 instrument (1) for projecting a distance measuring light (3) to an object to be measured (2) and for measuring a distance from a reflected light, comprising at least an image pickup unit for picking up an image of a spreading area of the distance measuring light, and a control unit for performing edge extraction from the image captured by the image pickup unit and for judging whether there is an edge or not within the spreading area.",
  "title": "Surveying instrument"
}