noun Spectography. a diffraction grating designed to reflect infrared radiation.
echelette 🔊 Listen to this noun Spectography. a diffraction grating designed to reflect infrared radiation. Echelette | Article about Echelette by The Free Dictionary View of one echelette mirrors developed by Winlight Optics for CNES technology-echelette-design | Dimitri Eye Surgery Blazed grating – Wikipedia Profile of the echelette cavity. | Download Scientific Diagram Share Facebook Twitter Google +