MLchartDataset catalogue

Arago spot

Term · Industrial and trades · MLC-T-IND-000263

A bright spot that appears at the center of the shadow of a circular opaque object when illuminated by a point source of light. This phenomenon is a direct consequence of the wave nature of light and demonstrates Fresnel diffraction. The Arago spot, also known as Poisson's spot, provides evidence for the wave theory of light.

Table 1. Record
IdentifierMLC-T-IND-000263
FieldIndustrial and trades
SubjectOptics and imaging
SynonymsFresnel spot; Poisson spot
TranslationsGerman: Arago-Fleck; Spanish: punto de Arago; French: tache d'Arago
Record as JSON 
{
  "id": "MLC-T-IND-000263",
  "term": "Arago spot",
  "field": "Industrial and trades",
  "definition": "A bright spot that appears at the center of the shadow of a circular opaque object when illuminated by a point source of light. This phenomenon is a direct consequence of the wave nature of light and demonstrates Fresnel diffraction. The Arago spot, also known as Poisson's spot, provides evidence for the wave theory of light.",
  "synonyms": [
    "Fresnel spot",
    "Poisson spot"
  ],
  "subject": "Optics and imaging",
  "translations": {
    "de": "Arago-Fleck",
    "es": "punto de Arago",
    "fr": "tache d'Arago"
  },
  "url": "https://mlchart.com/terminology/industrial/arago-spot/"
}

Record 282 of 7,361 in Industrial and trades terminology (MLC-0113). Request the full dataset.