Planoconcave

{
  "id": "MLC-T-IND-004357",
  "term": "Planoconcave",
  "field": "Industrial and trades",
  "definition": "A type of lens that has one flat surface and one inwardly curved, or concave, surface. This lens design causes parallel light rays to diverge, making it useful for expanding a beam or increasing the focal length of an optical system. The focal length of a planoconcave lens is negative.",
  "subject": "Optics and imaging",
  "see_also": [
    "planoconvex"
  ],
  "translations": {
    "de": "plankonkav",
    "es": "planocóncavo",
    "fr": "planoconcave"
  },
  "url": "https://mlchart.com/terminology/industrial/planoconcave/"
}