
A torchère ( ; french: torchère ; also variously spelled "torchèr", "torchière", "torchièr", "torchiere" and "torchier" with various interpretative pronunciations), also known as a torch lamp or floor lamp, is a
lamp with a tall stand of
wood
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of ligni ...
or
metal
A metal (from Greek μέταλλον ''métallon'', "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typi ...
. Originally, torchères were
candelabra
A candelabra (plural candelabras) or candelabrum (plural candelabra or candelabrums) is a candle holder with multiple arms.
Although electricity has relegated candleholders to decorative use, interior designers continue to model light fixtures ...
, usually with two or three lights. When it was first introduced in
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan ar ...
towards the end of the 17th century the torchère mounted one candle only, and when the number was doubled or tripled the improvement was regarded almost as a revolution in the lighting of large rooms.
Background
Today, torchère lamps use
fluorescent
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore a lower photon energy, th ...
,
halogen, or
LED light bulb
An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the so ...
s. By adjusting the
pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a method of reducing the average power delivered by an electrical signal, by effectively chopping it up into discrete parts. The average value of voltage (and current) fed ...
in the electronic ballast can allow the fluorescent torchères to be dimmed.
Halogen torchères usually came with a simple switch. Some more expensive models have a
TRIAC
A TRIAC (triode for alternating current; also bidirectional triode thyristor or bilateral triode thyristor) is a three terminal electronic component that conducts current in either direction when triggered. The term TRIAC is a genericised trad ...
dimmer circuit built into the stem. Early lamps with 300W bulbs tended to fail quickly. Retrofitting the lamp with a 100W bulb resulted in a substantial improvement in bulb life with minimal loss in brightness.
Halogen torchères have been banned in some places, such as
dormitories, because of the large numbers of fires they have caused. The torchère was held responsible by the
US Consumer Product Safety Commission
The United States Consumer Product Safety Commission (USCPSC, CPSC, or commission) is an independent agency of the United States government. The CPSC seeks to promote the safety of consumer products by addressing “unreasonable risks” of in ...
for 100 fires and 10 deaths since 1992.
Halogen bulbs operate at high
temperature
Temperature is a physical quantity that expresses quantitatively the perceptions of hotness and coldness. Temperature is measured with a thermometer.
Thermometers are calibrated in various temperature scales that historically have relied on ...
s and the tall height of the lamps brings them near
flammable
A combustible material is something that can burn (i.e., ''combust'') in air. A combustible material is flammable if it ignites easily at ambient temperatures. In other words, a combustible material ignites with some effort and a flammable mat ...
materials, such as
curtain
A curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or (in the case of a shower curtain), water. A curtain is also the movable screen or theater curtain, drape in a theatre that separates the stage fro ...
s.
See also
*
Mogul lamp
References
Light fixtures
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