An arc lamp operated in this way is called an enclosed arc lamp (fig. 8).
To illustrate this, let us take an arc lamp designed to use a 50-volt current.
And now Rhoda Gray was in the radius of the arc lamp, and distinctly visible to any one coming down the yard.
The point between reality and unreality is the arc lamp in the street.
All such commonly used expressions as “an arc lamp of 2000 candle-power” are, therefore, perfectly meaningless.
The arc lamp has shone like a sun to-day over a happy company.
Smith turned to me, and his face was tragic in the light of the arc lamp swung hard by.
This is simply an arc lamp with reflectors behind it and lenses in front of it.
Once a curiously-hatted policeman stared blankly at them under an arc lamp as the staff car clanked and rumbled past him.
He touched the photograph she had given him, and held it up as he passed under an arc lamp to be sure of it.
|arc lamp |
An electric light in which a current produces light when an arc traverses the gap between two incandescent electrodes in a container filled with a gas, such as xenon. The two electrodes are usually made of carbon and are eventually vaporized by the heat they generate. Arc lamps are used to produce intense light (as in spotlights) and to produce heat for welding.