# Friedrich von Hefner-Alteneck

> Friedrich Heinrich Philipp Franz von Hefner-Alteneck was a German electrical engineer and one of the closest aides of Werner von Siemens. He is largely remembered for the invention of the Hefner lamp, which provided the measure of luminous intensity used in Germany, Austria and Scandinavia from 1890 to 1942. The measure was called the Hefnerkerze (HK). The Hefnerkerze was superseded in the 1940s by the modern SI unit, the candela.

*German engineer (1845–1904)*

**Canonical URL:** https://fame.am/person/friedrich-von-hefner-alteneck

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** Germany
- **Born:** 1845-04-27
- **Died:** 1904-01-07
- **Status:** deceased
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 43.4 / 100
- **Momentum:** 7.1 / 100  (trend: RISING)
- **Historical depth:** 10.1 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 70.0 / 100

## Sources
- [பிரெடெரிக் வோன் எஃப்னெர் - ஆல்டெனக்](https://ta.wikipedia.org/wiki/%E0%AE%AA%E0%AE%BF%E0%AE%B0%E0%AF%86%E0%AE%9F%E0%AF%86%E0%AE%B0%E0%AE%BF%E0%AE%95%E0%AF%8D_%E0%AE%B5%E0%AF%8B%E0%AE%A9%E0%AF%8D_%E0%AE%8E%E0%AE%83%E0%AE%AA%E0%AF%8D%E0%AE%A9%E0%AF%86%E0%AE%B0%E0%AF%8D_-_%E0%AE%86%E0%AE%B2%E0%AF%8D%E0%AE%9F%E0%AF%86%E0%AE%A9%E0%AE%95%E0%AF%8D)
- [فريدريش فون هيفنر التنيك](https://arz.wikipedia.org/wiki/%D9%81%D8%B1%D9%8A%D8%AF%D8%B1%D9%8A%D8%B4_%D9%81%D9%88%D9%86_%D9%87%D9%8A%D9%81%D9%86%D8%B1_%D8%A7%D9%84%D8%AA%D9%86%D9%8A%D9%83)
- [Friedrich von Hefner-Alteneck](https://ca.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://da.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://de.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://en.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://it.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://mg.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://nl.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Friedrich von Hefner-Alteneck](https://pt.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Хефнер-Альтенек, Фридрих фон](https://ru.wikipedia.org/wiki/%D0%A5%D0%B5%D1%84%D0%BD%D0%B5%D1%80-%D0%90%D0%BB%D1%8C%D1%82%D0%B5%D0%BD%D0%B5%D0%BA%2C_%D0%A4%D1%80%D0%B8%D0%B4%D1%80%D0%B8%D1%85_%D1%84%D0%BE%D0%BD)
- [Friedrich von Hefner-Alteneck](https://sv.wikipedia.org/wiki/Friedrich_von_Hefner-Alteneck)
- [Wikidata](https://www.wikidata.org/wiki/Q68095)

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