MLchartDataset catalogue

Negative crystal

Term · Industrial and trades · MLC-T-IND-003868

A uniaxial birefringent crystal in which the extraordinary refractive index is lower than the ordinary index, so that light polarized along the optic axis travels faster than light polarized across it. Calcite is the standard example, and quartz is a positive crystal, in which the relation is reversed.

Table 1. Record
IdentifierMLC-T-IND-003868
FieldIndustrial and trades
SubjectOptics and imaging
TranslationsGerman: negative Kristall; Spanish: cristal negativo; French: cristal négatif
Record as JSON 
{
  "id": "MLC-T-IND-003868",
  "term": "Negative crystal",
  "field": "Industrial and trades",
  "definition": "A uniaxial birefringent crystal in which the extraordinary refractive index is lower than the ordinary index, so that light polarized along the optic axis travels faster than light polarized across it. Calcite is the standard example, and quartz is a positive crystal, in which the relation is reversed.",
  "subject": "Optics and imaging",
  "translations": {
    "de": "negative Kristall",
    "es": "cristal negativo",
    "fr": "cristal négatif"
  },
  "url": "https://mlchart.com/terminology/industrial/negative-crystal/"
}

Record 4,206 of 7,291 in Industrial and trades terminology (MLC-0113). Request the full dataset.