In a ray diagram, a concave lens is drawn as a vertical line with inward facing arrows to indicate the shape of the lens.

Sir Isaac Newton once wrote, in what must be one of the most oft-quoted lines in the history of ... he discovered that plano-convex and plano-concave lenses worked best—that is, lenses with ...

Concave Convex Mirror has been created for the Alt Material exhibition, part of NGV's Melbourne Design Week 2020. The framework of Concave Convex Mirror is made of mild steel spun over a custom ...