In geometry, a lens is a shape comprising two circular arcs, joined at their endpoints. The Vesica piscis is one form of a symmetrical lens.

In common usage, the term "lens" is also used to describe the shape of a three-dimensional object obtained by rotating a two-dimensional lens about its narrow axis of symmetry. Such a shape is described as lenticular.

See also

• Mrs. Miniver's problem

References

• which in turn cites
  • page 11

Geometric shapes