{
  "$type": "site.standard.document",
  "description": "The present invention comprises an illumination portion (11), and a light receiving portion (12) having an image sensor (27) which are disposed in a surveying machine body (8), arithmetic means (38) for calculating a position of a reflection light image (MO) from a reflector (2) in an area of the…",
  "path": "/patents/1086939",
  "publishedAt": "2004-05-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C15/002",
    "TOPCON CORP [JP]"
  ],
  "textContent": "The present invention comprises an illumination portion (11), and a light receiving portion (12) having an image sensor (27) which are disposed in a surveying machine body (8), arithmetic means (38) for calculating a position of a reflection light image (MO) from a reflector (2) in an area of the image sensor (27) based on a received light of the image sensor (27), a rotation mechanism for rotating the surveying machine body (8) so as to position the reflector (2) on a light receiving optical axis of the light receiving portion (12) based on the position obtained by the arithmetic means (38), a storing portion (45) for storing a quantity of light of each pixel in the image sensor (27), and an edge position detecting portion (46) for detecting a beginning edge position (La) and end edge portion (Lb) of the reflection light image (MO) every scanning line in the image sensor (27).",
  "title": "Automatic reflector tracking apparatus"
}