Field stop

{
  "id": "MLC-T-IND-002253",
  "term": "Field stop",
  "field": "Industrial and trades",
  "definition": "An aperture placed at or near an intermediate image plane in an optical system to define the extent of the field of view. It physically blocks light rays that would fall outside the desired viewing area, thereby eliminating stray light and improving image quality. The field stop determines the angular size of the object that can be observed.",
  "subject": "Optics and imaging",
  "translations": {
    "de": "Feldblende",
    "es": "diafragma de campo",
    "fr": "diaphragme de champ"
  },
  "url": "https://mlchart.com/terminology/industrial/field-stop/"
}