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Fresnel lens

compact composite lens
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Summary

Fresnel lens ranks in the top 1% of general entities by monthly Wikipedia readership (8,509 views/month).[1]

Key Facts

  • Discoverer or inventor: Augustin-Jean Fresnel[2]
  • Named after: Augustin-Jean Fresnel[3]
  • Subclass of: optic[4]
  • Part of: lighthouse[5]
  • Commons category: Fresnel lenses[6]
  • Described by source: Meyers Konversations-Lexikon, 4th edition (1885–1890)[7]
  • Has list: list of Fresnel lighthouse lens sizes[8]
  • Permanent duplicated item: Q116617671[9]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[10]

Why It Matters

Fresnel lens has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[11] It is known by 27 alternative names across languages and contexts.[12]

Related Entities

Augustin-Jean Fresnel

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [11] ↑ . Wikidata sitelinks. wikidata.org.
  3. [12] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Fresnel lens. Retrieved October 14, 2026, from https://4ort.xyz/entity/fresnel-lens
MLA “Fresnel lens.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/fresnel-lens.
BibTeX @misc{4ortxyz_fresnel-lens_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Fresnel lens}}, year = {2026}, url = {https://4ort.xyz/entity/fresnel-lens}, note = {Accessed: 2026-10-14}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Fresnel lens — https://4ort.xyz/entity/fresnel-lens (retrieved 2026-10-14)

Canonical URL: https://4ort.xyz/entity/fresnel-lens · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 11d ago · GeertivpBot bot · 2026-10-05 view diff on Wikidata ↗
    Wikipedia languages → ['als', 'ar', 'ast', 'ba', 'bg', 'ca', 'commons', 'cs', 'da', 'de', 'en', 'eo',
    Part of → lighthouse
    Claims rich → —
    "/* wbsetclaim-create:2||1 */ Part of: lighthouse, #pwb Copy label Add onderdeel van (P361)"
  2. 21w ago · Twofivesixbot bot · 2026-05-23 view diff on Wikidata ↗
    Permanent duplicated item → Q116617671
    Has list → list of Fresnel lighthouse lens sizes
    Named after → Augustin-Jean Fresnel
    Discoverer or inventor → Augustin-Jean Fresnel
    + 6 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|2 */ National library of israel j9u id: 987007553003705171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.