On still another, highly polished mirrors were mounted to focus sunlight upon the solar-battery production lines.

The design is based on a high altitude Airship which uses its envelope to focus sunlight onto a tube.

The required temperature can be achieved by using a chamber containing a mirror to focus sunlight on the gas.

The lens is said to be able to focus sunlight although the focus is far from perfect.

Its primary purpose was to focus sunlight on the green photosynthetic node at its center.

Ice can be used to start a fire by carving it into a lens which will focus sunlight onto kindling.

These mirrors align themselves and focus sunlight on the receiver at the top of tower, collected heat is transferred to a power station below.

The structure itself acts as a series of lenses, which focus sunlight.

This effect was caused by the heliostats focusing sunlight onto a specific point.

One answer is to make the cell smaller and focus sunlight from a wider area on to it.