{
  "$type": "site.standard.document",
  "description": "An apparatus (10) for producing an image of an object (12) which is illuminated by a pulse of artificial light and by ambient light. That apparatus (10) has a two dimensional array (15) of photodetector elements (20) each of which includes a semiconductor device (32) which responds to impingement…",
  "path": "/patents/1098751",
  "publishedAt": "2003-01-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R21/01538",
    "EATON CORP [US]"
  ],
  "textContent": "An apparatus (10) for producing an image of an object (12) which is illuminated by a pulse of artificial light and by ambient light. That apparatus (10) has a two dimensional array (15) of photodetector elements (20) each of which includes a semiconductor device (32) which responds to impingement of light by producing an electrical signal. A mechanism (30,60) is provided to remove the effects of the ambient light from the electrical signal to produce a resultant signal at an output terminal that corresponds only to the magnitude of the artificial light striking the semiconductor device (32). This apparatus (10) is immune from the semiconductor device (32) becoming saturated by intense ambient illumination and can be configured to detect high speed objects.",
  "title": "Optical imager circuit with tolerance of differential ambient illumination"
}