{
  "$type": "site.standard.document",
  "description": "A distance measuring unit includes a light emitting unit (2211) to emit laser light in a scanning direction of target. A cylinder Fresnel lens (2215) expands the fan beam laser light in fan-shaped manner for distance measurement. The light reflected from the target is received by a light receiving…",
  "path": "/patents/1087835",
  "publishedAt": "2004-04-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C15/002",
    "TOPCON CORP [JP]"
  ],
  "textContent": "A distance measuring unit includes a light emitting unit (2211) to emit laser light in a scanning direction of target. A cylinder Fresnel lens (2215) expands the fan beam laser light in fan-shaped manner for distance measurement. The light reflected from the target is received by a light receiving unit of the distance measurement unit.",
  "title": "Surveying and position measuring instrument with a fan-shapped light beam"
}