Light was forcing its way past the shutters and bars on the windows, making pencil beams into the room as Angela stirred.

As she moved to the door, two pencil beams of light sliced through the grimy air, and struck her arm.

Unless the narrow pencil beam was pointed precisely at Earth, they could neither receive nor transmit.

But a pencil thin beam would be a lot less noisy, and less of a drain.

The lamp began clacking, the pencil beam cleaving the dusk.

I made a quick traverse of the cabin with the pencil beam.

Consciousness was down to a narrow pencil beam.

I hooded the torch to a small pencil beam and played it over the deck head.

He turned the overhead light out, shone a pencil beam into each eye, taking his time.

A "pencil beam" can be created by using an array of such 1D radiators.