Plano-convex
Encyclopedia
Plano-convex may refer to:
- Plano-convex lenses, in optics; see Lens (optics)#Types of simple lenses
- The plano-convex type of mudbrickMudbrickA mudbrick is a firefree brick, made of a mixture of clay, mud, sand, and water mixed with a binding material such as rice husks or straw. They use a stiff mixture and let them dry in the sun for 25 days....
, used by the ancient Sumerians