For the first time, a flat telescope lens has been produced that represents colors accurately, offering a way to make less ...

For centuries, telescopes have relied on curved lenses and mirrors to observe the Universe. A team of researchers has ...

A team of scientists at the University of Utah has designed a flat lens that matches the power of traditional curved lenses ...

Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object through the centre of the lens. Some ray diagrams may also show a third ray.

For centuries, the optic lens has bent light through translucent, curved material, but now flat lenses are reimagining the ...