The double convex lens/mirror is symmetrical across both its horizontal and vertical axis. Each of the lens's two faces can be thought of as originally being part of a sphere. The fact that a double ...

A double-convex lens is compose of two convex surfaces, has a positive focal length. Normally Bi-Convex lenses are most suitable where the object and image are on opposite sides of the lens, and are ...

By creating a dramatic look with one relatively inexpensive piece of equipment, the convex lens reflects a D.I.Y. ethos that is timeless among the young, edgy and broke.