Assertion: concave mirror | /r/CapableOf | collect light
Facets:
value: from a large area
type: LOCATION
Source sentences:
text: In illumination applications, concave mirrors are used to gather light from a small source and direct it outward in a beam as in torches, headlamps and spotlights, or to collect light from a large area and focus it into a small spot, as in concentrated solar power.