Assertion: led's light | /r/CapableOf | travel to the substrate
Facets:
value: from the active layer
type: OTHER
value: back as useful light output
type: PURPOSE
Source sentences:
text: Toshiba, using the MOCVD (Metal Oxide Chemical Vapor Deposition) growth process, was able to produce a device structure that reflected 90% or more of the generated light traveling from the active layer to the substrate back as useful light output (Figure 4).