electrically excited, e.g. electroluminescence

Full Title

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light (G01N3/00 - G01N19/00 take precedence) > Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light > electrically excited, e.g. electroluminescence

Child Classifications

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• G01N 21/67 using electric arcs or discharges
• G01N 21/68 using high frequency electric fields
• G01N 21/69 specially adapted for fluids