# illuminance

> luminous flux incident on a surface per area

**Wikidata**: [Q194411](https://www.wikidata.org/wiki/Q194411)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Illuminance)  
**Source**: https://4ort.xyz/entity/illuminance


## References

1. Nuovo soggettario
2. Freebase Data Dumps. 2013
3. Integrated Authority File
4. ISO 80000-7:2019 Quantities and units — Part 7: Light and radiation
5. SI Brochure (9th edition): Concise summary
6. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)