PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Accordingly, it is good practice to locate each surface at a position close to the stop to such an extent that the on-axial light beam and the off-axial light beam do not separate spatially from each other, specifically, at a position such as to satisfy the condition:
http://www.w3.org/ns/prov#wasQuotedFrom
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