| http://www.w3.org/ns/prov#value | - A light emitting face 101d oriented in one or more directions to direct a beam or beams of light visible to the naked eye typically would be transparent or, alternatively, may be tinted or colored, and is made of glass, plastic or other smooth surface having an inwardly facing smooth surface 101d-l upon which the phosphor is placed to provide the coating 102.
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