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OVERRUN LAMP [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2004-08-04

English

Subject field(s)
  • Lamps
  • Photography
DEF

A filament lamp designed to be overrun to give brilliant light(about 36 lumens per watt with colour temperature of 3400 K).

CONT

[The] photoflood lamp [is an] incandescent lamp of especially high color temperature, often of the reflector type, for lighting objects to be photographed.

OBS

Typically, the smallest type of photoflood lamp rated at about 275 watts gives a light equivalent to 500 to 250 watts of normally run tungsten filament lamps, and has a burning life of about two or three hours in intermittent use.

French

Domaine(s)
  • Lampes
  • Photographie
DEF

Lampe incandescente à filament, dotée d'une grande puissance d'éclairage, employée particulièrement en photographie et pour éclairer les endroits sombres.

Spanish

Save record 1

Record 2 2004-08-04

English

Subject field(s)
  • Lamps
  • Photography
DEF

An incandescent filament lamp designed to burn at an appreciably higher temperature (by making the filament carry an appropriately higher current density) than general purpose filament lamps of smaller voltage.

OBS

This increases the light output and colour temperature, but shortens the burning life of the lamp to a few hours.

French

Domaine(s)
  • Lampes
  • Photographie
DEF

Lampe incandescente à filament conçue pour éclairer à une température nettement supérieure aux lampes à filament courantes dotées d'un faible voltage.

OBS

Une telle puissance a pour effet cependant d'en écourter la vie utile.

OBS

On rencontre aussi le vocable «lampe survoltée» comme équivalent de «photoflood lamp», laquelle est plus spécifiquement une lampe d'un éclairage moyen de 36 lumens par watt employée surtout en photographie.

Spanish

Save record 2

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