lecture: inkohärente lichtquellen ss2013€¦ · 1990:discovery: discovery by m. ury and c. wood...
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Lecture:Inkohärente Lichtquellenq
SS2013
The Sulfur Lamp Wiebke Dörries1
The Sulfur Lamp Wiebke Dörries
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History History Functional Principle
Properties Properties◦ Pros and Cons
Comparison to other Light Sources Comparison to other Light Sources Application areas
R h Research References
The Sulfur Lamp Wiebke DörriesThe Sulfur Lamp Wiebke Dörries2
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1990: Discovery 1990: Discovery◦ by M. Ury and C. Wood (Fusion Systems
Corporation)Corporation) 1994-1997: 2 types of Sulfur Lamps (Solar
1000; Light Drive 1000) by Fusion Lighting1000; Light Drive 1000) by Fusion Lighting 1998: Production stop; Patents were licensed
to LGto LG 2006: LG start of production (PLS) Today: Research on Sulfur Lamps with Today: Research on Sulfur Lamps with
electrodes
The Sulfur Lamp Wiebke DörriesThe Sulfur Lamp Wiebke Dörries3
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Construction: Construction:◦ Fused quartz bulb (30 mm)
filled with argon (1 bar) and mgfilled with argon (1 bar) and mg of sulfur powder◦ Bulb on a spindel rotation◦ Magnetron: sends out
microwaves (@ 2,45 GHz)P b li fl t◦ Parabolic reflector
The Sulfur Lamp Wiebke DörriesThe Sulfur Lamp Wiebke Dörries4
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Microwave induction lamp Microwave induction lamp(without electrodes)
Microwaves excite the Microwaves excite theargon 5 bar pressure
Plasma of sulfur many Plasma of sulfur manyexcited states (molecularemission)emission)⇒Many lines in the
spectraspectra
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How to use and distribute the light? How to use and distribute the light?Light pipes
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Typical Parameter:Typical Parameter: Power: 1.400 W
Diameter of the bulb: ca 30 mm Diameter of the bulb: ca. 30 mm Luminous flux: 135.000 Lumen
Off i 25 Offset time: 25 s Lifetime (Illuminant): 60.000 h Lifetime (Magnetron): 20.000 h Luminous efficiency: 95 lm/W
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Color temperature: Color temperature: ~6.000 K
Nearly solar spectra Nearly solar spectra Low emission in UV and
IR Dimmable Relatively long lifetime Does not harm the
environment Reduce the required
amount of energy
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Maximum at 536 nm (eye Maximum at 536 nm (eye ensitive curve) greenish (adjustment due to use of ( jother materials or color filter)
High voltages are required Short lifetime of the
magnetron Magnetron consumes the
most energy Need of rotation and cooling
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Compared parameter: lm/W Compared parameter: lm/W◦ Sulfur lamp 80 – 1353◦ Sodium low pressure 100 – 200Sodium low pressure 100 200◦ White LED 20 – 150◦ Energy saving lamp 35 – 75gy g p◦ Mercury high pressure 30 – 60◦ Halogen lamp 14 – 25◦ Incandescent lamp 5 - 16
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Incandescent lamp White LED
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Sulfur lamp
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h h Light therapy
Horticultural Research Horticultural Research
Light pipes Architectual highlights
TV studios
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Hill Air Force Base Utah Hill Air Force Base, Utah (1998)
Sundsvall-Härnösand Airport, Swedenp
U.S. Air and Space Museum, Washington D.C.
Headquarter of DONG Energy, Denmark
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Cheap efficient microwave source with long Cheap, efficient microwave source with long lifetime
Low wattage sulfur lamps Low wattage sulfur lamps How to get rid of rotating an cooling
S lf l ith l t d ( i 2006) Sulfur lamps with electrodes (since 2006)◦ German Patent (2011)
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http://eetd.lbl.gov/newsletter/cbs_nl/nl06/cbs-nl6-slamp.htmlp g p http://www.energieinfo.de/eglossar/schwefellampe.html http://www.wundersamessammelsurium.info/optisches/lumi/index.html#Sc
hwefellampenT d ilib i i l l l h lf l “ C W „Transport and equilibrium in molecular plasmas: the sulfur lamp“; C.W.
Johnston; Technische Universität Eidhoven; 2003 http://ecmweb.com/content/rf-lighting-tunes-improved-illumination http://en wikipedia org/wiki/Sulfur lamp http://en.wikipedia.org/wiki/Sulfur_lamp http://www.plasma-i.com/index.html Offenlegungsschrift DE 10 2011 012 829 A1; V. Beck; 02.03.2011 „Plasmalichtquellen – Stand und Ausblick“; H.Hess, K.D. Weltmann; Vakuum „ as a c tque e Sta d u d usb c ; ess, e t a ; a uu
in Forschung und Praxis; 2006, 4, pp. 7-11 „Chemie in Lampen – Elektrische Lichtquellen“; M. Born, T. Jüstel; Chemie
Unserer Zeit; Wiley-VCH-Verlag; 2006, 40, pp. 294-305S i t I k hä t Li ht ll “ T Jü t l t 2013 Script „Inkohärente Lichtquelle“, T. Jüstel; summer term 2013
http://www.led-info.de/uploads/pics/luco-led_01.gif http://de.wikipedia.org/wiki/Natriumdampflampe
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Thank you for your Attention
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