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Understanding
Halogen Bulbs
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Halogen
bulb means incandescencent bulbs
into which insered halogen gas. Incandescent
bulb heats up itself by heating
unit and use light caused by
itself. Incandescent bulb usually
use tungsten filament which
is characteristic of high melting
point(3,400 degree). When
the bulb light up, tungsten
filament is evaporated and it
cause black status due to sticking
itself on tungsten tube. It
cause to decrease 20% of light
output and make tungsten filament
slender and blow out in the
end. Halogen makes it not to
evaporate tungsten and stable
light and make it longer average
life of halogen lamp.
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Evaporated
tungsten(zone 1) from filament
become halogen chemical compound
after combine(zone2) with halogen
gas. Tungsten chemical compound
keeps 250 ~ 1,400 degree(zone3). It
should keep not less than 250
degree not to be black.
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Halogen
Cycle
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When the filament is heated in a glow, tungsten in it is evaporated and stuck to
the inner bulb wall. And this tungsten stuck to the wall results in the
blackening phenomenon and gets the filament evaporation. But halogen bulb having
evaporated tungsten combines with the molecule of halogen gas in the bulb wall
in the ratio of 1 to 2 and forms halogen tungsten. So, the filament wears slowly
and the blackening phenomenon doesn't appear on the inner bulb wall. The gas
near the heated moves fast. So, on the one hand, halogen gas combines with
tungsten, on the other hand, halogenized tungsten transported by the convection
with in the bulb gets separated and comes into the filament and gets combined
again. This series of combination and separation is so called the halogen cycle.
We can prevent tungsten of filament from sticking to the inner bulb wall by the
halogen cycle. |
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The
Characteristics of Halogen Bulbs
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1.
Stable
Color Temperature
Thanks
to the halogen cycle, light
inteensity and color temperature
remain stable through the life
of the lamp. 2.
Longer
Life
The halogen cycle makes
it long lamp life.
3.
Compact
Size
4.
Heat
Impact Resistence
Quartz
halogen lamps are much more
resistant to heat impact than
ordinary incandescent lamps.
A
lit halogen lamp will not break
even if it should come into
contact with cold water.
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Head office & Factory
5-201, 24-5, Samjeong-dong, Ojeong-gu, Bucheon-si, Gyeonggi-do, Korea
¢Ï : 82-32-556-2654 FAX : 82-32-556-2658
E-mail : autobulb@kornet.net
oceansa@hanmail.net
Copyright¨Ï 2006 OCEAN LIGHT CO., LTD. All right reserved. |
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