Luminance

{
  "id": "MLC-T-MET-007060",
  "term": "Luminance",
  "field": "Meteorology and atmospheric science",
  "definition": "A photometric quantity that quantifies the amount of visible light emitted, transmitted, or reflected from a given surface per unit solid angle and per unit projected area. It describes the perceived brightness of an object to a human observer, taking into account the sensitivity of the eye to different wavelengths of light. The standard unit for luminance is the candela per square meter (cd/m²), sometimes referred to as a nit.",
  "see_also": [
    "illuminance"
  ],
  "url": "https://mlchart.com/terminology/meteorology/luminance/"
}