Physicists have demonstrated a new type of tunable liquid lens whose focus can be changed simply by varying the pressure on it. The lens is formed from the curved interface between a liquid and air at ...

Optical Lenses are optical components designed to focus or diverge light. Optical Lenses, which may consist of a single or multiple elements, are used in a wide variety of applications from microscopy ...

A novel configuration of electro-optical lenses is helping researchers in the US to focus light in two dimensions. What's more, the optical power of the lens can be continuously tuned from - 129 m-1 ...

We compare and contrast concave and convex lenses by drawing ray diagrams. In this Closer Look segment on Lenses, we compare and contrast concave and convex lenses by drawing ray diagrams and ...