The addition of a metal reflector round the arc source directed a very broad sweep of light in the desired direction.

With a metal reflector (30 cm of steel), the critical masses of the odd isotopes are about 3-4 kg.

It can be lowered to 3-5 kg with a metal reflector and should become even smaller with a water reflector.

Tubes need to be mounted near an earthed metal reflector in order for them to strike.

The metal reflector high up outside swung silently and invisibly, its movement compensating for the motion of the earth.

It might have been the automatic timer, or the metal reflector on the lamp heating up.

Finally, a protective coating of a photo-polymerizable lacquer is applied on top of the metal reflector and cured with UV-light.

In the center of the grove was an open space with a stone altar and a metal reflector for the ceremonial fire behind it.

As he joined in the Chant for the Dead, Blade again saw the flames light up the metal reflector behind the altar.

Behind the chairs were two huge, free-standing lights, their bulbs backed by metal reflectors.