The Israelis were using barrier-penetrating optics to view activities inside, behind the walls of the building.

It is not possible to explain their existence using classical geometric optics.

This protocol was recently implemented in free space using optics.

Higher efficiencies (around 30%) can be obtained by using optics to concentrate the incident light.

In the future, we will be able to use optics at all levels of electronic systems.

We were therefore required to plot the Alderson entry point using optics alone.

Using adaptive optics recovers much of the information that is lost.

The process by which light propagates and reflects off surfaces is explained using optics.

Can we not get these data with large telescopes on the ground, using adaptive optics?

But he said that his company has been able to do it by using optics rather than electricity.