# echelle grating

> type of diffraction grating used in spectrometers

**Wikidata**: [Q910407](https://www.wikidata.org/wiki/Q910407)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Echelle_grating)  
**Source**: https://4ort.xyz/entity/echelle-grating


## References

1. Freebase Data Dumps. 2013