It was used in some of the first infrared detectors.

This is done with infrared detectors that sense the difference between the heat from the Earth and the cold of space.

Earlier, he'd given Daily a crash course on how to read the infrared detector.

Luke turned up the screen of his infrared detector to see the green against black clearly.

It is used as a semiconductor and an infrared detector.

Don't go any closer, the infrared detectors will pick us up."

In those few seconds they hoped hard that the enemy did not have infrared detectors.

Solentse-1P infrared detectors were carried on either side of the superstructure.

Infrared detectors worked by sensing the heat difference between an object and its surroundings.

The simplest infrared detector would have spotted a flight of this size.

No, he didn't have an infrared detector, but the astronomers on Farside might be able to help.

Angelo went in first to make sure there were no infrared detectors or lasers.

"According to the infrared detectors," the man at the console said, "they aren't down there yet."

Experts attributed the trouble to a problem with infrared detectors used to position the craft for landing.

This narrow bandwidth of radiation falls on an infrared detector.

Nowhere could the craft's infrared detectors see any point brighter than its surroundings by even one part in 25,000.

The craft's infrared detectors might also catch brightness changes.

Now the police spread out with infrared detectors.

But if he stayed, those infrared detectors... He'd have to chance it.

In addition the infrared detectors have proved to be much more stable than anyone had dared to predict.

An infrared detector is protected from thermal background radiation outside its optical field of view.

"Infrared detectors picked up four large blasts in eastern Libya last night.

PbS is one of the oldest and most common detection element materials in various infrared detectors.

Now it is mainly used in infrared detectors.

"Not much into the night, my own infrared detector began to register a source, stronger than living bodies could account for.