{
  "$type": "site.standard.document",
  "description": "A road lane marking crossing detection system has sensor units (2) with a light source and optical splitter, and lens chain integrated in the casing to produce two light beams (4, 6) lighting separate areas (10, 12) of the road (8), and a photo-detector sensing the reflected beams (14, 16) with…",
  "path": "/patents/1089871",
  "publishedAt": "2004-02-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R1/002",
    "EM MICROELECTRONIC MARIN SA [CH]"
  ],
  "textContent": "A road lane marking crossing detection system has sensor units (2) with a light source and optical splitter, and lens chain integrated in the casing to produce two light beams (4, 6) lighting separate areas (10, 12) of the road (8), and a photo-detector sensing the reflected beams (14, 16) with cable (20) connection (18) to an on board processor.",
  "title": "Lane drifting detection device"
}