circle of confusion

blurry region in optics
Thing optical_phenomenon Q196727
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circle of confusion

Summary

circle of confusion is an optical phenomenon[1]. It draws 237 Wikipedia views per month (optical_phenomenon category, ranking #9 of 20).[2]

Key Facts

  • circle of confusion's instance of is recorded as optical phenomenon[3].
  • circle of confusion's subclass of is recorded as motion blur[4].
  • circle of confusion's Freebase ID is recorded as /m/016jyp[5].
  • circle of confusion's has cause is recorded as defocus aberration[6].
  • circle of confusion's Encyclopædia Britannica Online ID is recorded as technology/circle-of-confusion[7].
  • circle of confusion's different from is recorded as Airy disk[8].
  • circle of confusion's Quora topic ID is recorded as Circle-of-Confusion[9].
  • circle of confusion's Microsoft Academic ID is recorded as 160540625[10].
  • circle of confusion's Encyclopedia of China is recorded as 42580[11].

Why It Matters

circle of confusion draws 237 Wikipedia views per month (optical_phenomenon category, ranking #9 of 20).[2] It has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[12] It is known by 6 alternative names across languages and contexts.[13]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . Freebase Data Dumps. wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . Quora. wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [12] . Wikidata sitelinks. wikidata.org.
  3. [13] . 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). circle of confusion. Retrieved May 3, 2026, from https://4ort.xyz/entity/circle-of-confusion
MLA “circle of confusion.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/circle-of-confusion.
BibTeX @misc{4ortxyz_circle-of-confusion_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{circle of confusion}}, year = {2026}, url = {https://4ort.xyz/entity/circle-of-confusion}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): circle of confusion — https://4ort.xyz/entity/circle-of-confusion (retrieved 2026-05-03)

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