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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

artifact, artefact go
a man-made object taken as a whole

instrumentation, instrumentality go
an artifact (or system of artifacts) that is instrumental in accomplishing some end

device go
an instrumentality invented for a particular purpose

optical device go
a device for producing or controlling light

lens, lense, lens system go
a transparent optical device used to converge or diverge transmitted light and to form images

camera lens, optical lens
a lens that focuses the image in a camera

noun.artifact

4 Subcategories

closeup lens go
a photographic lens with a short focal length used to take pictures at short ranges
portrait lens go
a compound camera lens with a relatively high aperture
telephoto lens, zoom lens go
a camera lens that magnifies the image
wide-angle lens, fisheye lens go
a camera lens having a wider than normal angle of view (and usually a short focal length)