The house plunged into a darkness only interrupted by the stray light from the Valley below.

He leaned closer, cupping hands on both sides of his eyes to keep out stray light.

The river was night black and smooth, stray lights caught in the surface barely moving.

There's too much stray light in a city.

Though in most places there was a fringe of trees between the road and the canyon, any stray light could give them away.

If necessary, use a shield to prevent stray light from reaching the detector.

One method to reduce stray light is the use of double monochromators.

This might be the first cause to come to mind, but as this list shows, it is hardly the only source of stray light.

The pond is covered to prevent stray light from setting off the phototubes.

A black cloth is required to keep stray light out while observing the image on the ground glass focusing screen.