Assertion: led | /r/CapableOf | emit coloured light
Facets:
value: at a particular spectral wavelength
type: OTHER
value: based on the semiconductor material
type: OTHER
Source sentences:
text: Based on the semiconductor material used and the amount of doping, an LED will emit a coloured light at a particular spectral wavelength when forward biased.
text: The above described structures are all using ultra violet light crystalline granule for their basic material, and a reflection layer 12 is applied to the front and back surfaces of the chip surroundings, and at last a wave length converting layer 13 is plated on the ultra violet light emitting surface to assure that the LED can emit various colored light.