tungsten lamp

American  

noun

1. an incandescent electric lamp in which the filament is made of tungsten.

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tungsten lamp British  

noun

1. a lamp in which light is produced by a tungsten filament heated to incandescence by an electric current. The glass bulb enclosing the filament contains a low pressure of inert gas, usually argon. Sometimes small amounts of a halogen, such as iodine, are added to improve the intensity ( tungsten-halogen lamp )

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tungsten lamp Scientific  

1. An incandescent electric lamp having a tungsten filament.

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Etymology

Origin of tungsten lamp

First recorded in 1905–10

Example Sentences

The achievements which combined to perfect the tungsten lamp to the point where it has become the mainstay of electric lighting are not attached to names in the Hall of Fame.

From Artificial Light Its Influence upon Civilization by Luckiesh, Matthew

In order to make an accurate artificial north skylight for color-work by means of colored glass, from 75 to 85 per cent. of the light from a tungsten lamp must be filtered out.

From Artificial Light Its Influence upon Civilization by Luckiesh, Matthew

However, it was not until 1914, when the gas-filled tungsten lamp appeared, that this type of light-source could compete with arc-lamps on the basis of efficiency.

From Artificial Light Its Influence upon Civilization by Luckiesh, Matthew

Then Ruth touched the trigger of the big tungsten lamp, and the spotlight shot the herd at about the middle of its advance wave.

From Ruth Fielding In the Saddle College Girls in the Land of Gold by Emerson, Alice B.

The filament is capable of subdivision, with the result that such lamps vary from the minutest spark of the smallest miniature lamp to the enormous output of the largest gas-filled tungsten lamp.

From Artificial Light Its Influence upon Civilization by Luckiesh, Matthew