Telephotometer

{
  "id": "MLC-T-MET-009517",
  "term": "Telephotometer",
  "field": "Meteorology and atmospheric science",
  "definition": "An instrument designed to measure the luminance of a distant object or a specific area within a larger scene. It operates by focusing light from the target onto a detector, often incorporating a narrow field of view to isolate the desired measurement area. This device is frequently used in atmospheric optics to quantify sky brightness or the visibility of distant targets.",
  "see_also": [
    "visibility meter"
  ],
  "url": "https://mlchart.com/terminology/meteorology/telephotometer/"
}