Assertion: lens | /r/HasProperty | plano-convex
Facets:
Source sentences:
text: If the lens is biconvex or plano-convex, a collimated beam of light passing through the lens converges to a spot (a focus) behind the lens.
text: If the lens is biconvex or plano-convex, the lens is called positive or converging.
text: If one of the surfaces is flat, the lens is plano-convex (or plano-concave depending on the curvature of the other surface).
text: If the lens is biconvex or plano-convex, a collimated beam of light passing through the lens converges to a spot (a focus) behind the lens.