CN85101257B - Discharge lamp with a discharge lamp - Google Patents
Discharge lamp with a discharge lamp Download PDFInfo
- Publication number
- CN85101257B CN85101257B CN85101257A CN85101257A CN85101257B CN 85101257 B CN85101257 B CN 85101257B CN 85101257 A CN85101257 A CN 85101257A CN 85101257 A CN85101257 A CN 85101257A CN 85101257 B CN85101257 B CN 85101257B
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- CN
- China
- Prior art keywords
- discharge lamp
- neon
- pressure
- gas
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052754 neon Inorganic materials 0.000 claims abstract description 38
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims abstract description 38
- 230000015556 catabolic process Effects 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 29
- 239000008246 gaseous mixture Substances 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 230000005764 inhibitory process Effects 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 241001657674 Neon Species 0.000 description 35
- 238000001816 cooling Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 4
- 229910052805 deuterium Inorganic materials 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910001507 metal halide Inorganic materials 0.000 description 3
- 150000005309 metal halides Chemical class 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 150000005827 chlorofluoro hydrocarbons Chemical class 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 241000258971 Brachiopoda Species 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- KALSPHNHKOWPQI-UHFFFAOYSA-I tantalum(5+) pentaiodate Chemical compound [Ta+5].I(=O)(=O)[O-].I(=O)(=O)[O-].I(=O)(=O)[O-].I(=O)(=O)[O-].I(=O)(=O)[O-] KALSPHNHKOWPQI-UHFFFAOYSA-I 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- Discharge Lamp (AREA)
Abstract
A discharge lamp has an inner bulb of an arc tube and an outer envelope enclosing the inner bulb. The case is filled with neon gas having a pressure of 0.1 atmosphere or more, or with a mixture of neon gas having a pressure ratio of 80% or more and a breakdown suppressing gas.
Description
What the present invention relates to is a kind of discharge lamp with an arc-tube Nei Pao and a shell, especially is designed to a kind of discharge lamp that is operated under the high pipe load.
For a long time, people are always with deuterium lamp or the xenon short-arc lamp ultraviolet light source as physics or chemical devices (as the fluorescence detector in the liquid chromatograph).These Device Testing limit depend on the radiance of light source, and analyze the light source of the high radiant rate of a kind of continuous discharge stably of micro-material require.Normally used is deuterium lamp about 30 watts, but the ultraviolet radiation rate of this lamp is not high enough, cannot analyse micro-material.Although can use powerful deuterium lamp to solve this problem, yet this powerful deuterium lamp also has shortcoming, as owing to the increase of power dissipation and need that water-cooling structure produces bulky etc.Though the xenon short-arc lamp can provide high ultraviolet radiation rate, have but that strength stability is poor, short shortcomings such as (about 150 hours) of working life.
Another kind of high radiant rate ultraviolet light source is the metal halide lamp (open in the Japanese patent application that proposed on April 9th, 1977, number of patent application is № 52-45391) that has filled the halogenation tantalum.But, the metal halide lamp that designs for this high capacity purpose work when 1000 degrees centigrade of pipe Wen Gaoda.Like this, as long as pipe contains a bit impurity in manufacturing process, perhaps as long as electrode has any small bending, all the arc-tube that work plays drum.
An object of the present invention is to provide a kind of discharge lamp with an arc-tube Nei Pao and a shell, this discharge lamp can provide high radiant power, and reliable operation.
In order to achieve the above object, the discharge lamp of being invented includes a Nei Pao and a shell that steeps in encasing, and wherein, is filled with the gaseous mixture that neon or neon and inhibition puncture the gas of usefulness in the shell; In gaseous mixture, the pressure of neon is than being 80%(or higher), the pressure that suppresses puncture gas is 0.1 atmospheric pressure (or higher), discharges so that steep the rising of temperature in suppressing and prevent to produce in shell.
Fig. 1 is the profile that adopts discharge lamp of the present invention.
Fig. 2 is a curve chart.Shown in this figure is to fill neon partial pressure in the gaseous mixture and the relation between the discharge lamp puncture voltage in above-mentioned discharge lamp shell.
Below with reference to accompanying drawings, one embodiment of the invention are done to describe.High radiant rate ultraviolet discharge lamp shown in Figure 1 has one and can be steeped in the arc-tube of ultraviolet (uv) transmission.Bubble is that to be that 4 millimeters free hydroxyl group (consolidation) is quartzy constitute for 1.7 millimeters, inside radius by thickness in this arc-tube.The main electrode 2 and 2 of a pair of tungsten system ' quilt is distinguished top and the bottom of sealing-in at arc-tube 1; The spacing of two electrodes is 10 millimeters.Electrode 2 and 2 ' by molybdenum foil 3 and 3 ' respectively and molybdenum lead-in wire 4 and 4 ' link to each other.What charge in the arc-tube 1 is mercury, iodate tantalum and the xenon that is used as the starting inert gas.By the support bar 6 and 6 in the shell 5 ', arc-tube 1 is fixed.Shell 5 has at least a part can see through ultraviolet ray.
The tube wall temperature of arc-tube 1 is by discharge lamp being charged into work under the situation of all kinds of gases in shell 5 and tested come out.Test result is listed in table 1; Value when wherein, air pressure is room temperature.
| Charge into the gas (pressure) of shell | The tube wall temperature of arc-tube |
| Vacuum nitrogen (0.1～1 atmospheric pressure) argon (0.1～1 atmospheric pressure) carbon dioxide (0.1～1 atmospheric pressure) neon (0.1～1 atmospheric pressure) neon (90%) and nitrogen (10%) (0.1～1 atmospheric pressure) neon (90%) and carbon dioxide (10%) (0.1～1 atmospheric pressure) neon (90%) and sulphur hexafluoride (10%) (0.1～1 atmospheric pressure) | 1010 degrees centigrade 970 degrees centigrade 980 degrees centigrade 970 degrees centigrade 900 degrees centigrade 910 degrees centigrade 910 degrees centigrade 910 degrees centigrade |
When the gas that charges in the shell 5 was not neon, the tube wall temperature of arc-tube 1 was input as 60 watts lamp to power, was about 970 degrees centigrade.Although this temperature is more lower slightly than the tube wall temperature when shell 5 is in vacuum condition, the non-neon body that is charged into does not almost have cooling effect to arc-tube 1.When what charge in the shell 5 is neon or when being the gaseous mixture of main component with the neon, the tube wall temperature of arc-tube 1 is about 910 degrees centigrade, and the temperature when being in vacuum than shell 5 is low approximately by 10%, and cooling effect has obtained enhancing.The cooling effect of neon depends on its higher heat conductivity, and has been found that in 0.1～1 barometric pressure range, and air pressure does not change the influence that cooling arc-tube 1 is produced.The gas of the high thermal conductivity that other are known has hydrogen and helium.Yet concerning this purpose, hydrogen but there is no saving grace.This is because hydrogen is high to the permeability of 1 li of arc-tube from shell 5, causes the starting voltage of discharge lamp to increase.Helium is difficult to it is existed in the shell because diffusivity is strong, therefore can not be used for this purpose.When using neon and since the low pressure neons that charged in the shell 5 be easy to cause lead-in wire 4 and 4 ' discharge, therefore, its pressure must be not less than 0.1 atmospheric pressure.
Fig. 2 shows be in the device of Fig. 1, spacing be 4 millimeters lead-in wire 4 and 4 ' between the test result of puncture voltage.These results measure when the neon that has charged into the different blended composition and division in a proportion in the shell 5 and carbon dioxide mix gas, neon and sulphur hexafluoride gaseous mixture.As can be seen, what charge into shell is that the situation of pure neon is compared from curve chart, and the shell that has charged into gaseous mixture has increased puncture voltage.That is to say that carbon dioxide and sulphur hexafluoride are equivalent to suppress to puncture the gas of usefulness.When shell charge into be neon and carbon dioxide mix gas the time, in gaseous mixture, add a spot of carbon monoxide, can prevent the oxidation that goes between effectively.Other gas that can be used for suppressing to puncture has nitrogen, fluorocarbon and CFC.
The lead-in wire 4 and 4 ' between puncture voltage must to be 1000 volts at least usually greater than the starting voltage of discharge lamp, low pressure discharge at starting lamp is worked when starting voltage is lower than 200 volts; This discharge lamp has one, and to be filled with neon argon-mixed or with the arc-tube of a starting electrode; At this moment the puncture voltage between the lead-in wire must be higher than 200 volts.What go into is pressure when being the neon of 50 torrs (Torr) when envelope filled, and puncture voltage can reach 200 volts; The pressure of neon is increased to 100 torrs and 200 torrs, and puncture voltage just can correspondingly increase to 240 volts and 300 volts.Equally, charge in the shell, can make puncture voltage be higher than starting voltage at an easy rate by pressure being about 0.1 atmospheric neon.Consider because the different needed margin of safety of each discharge lamp starting voltage, discharge lamp outside the above-mentioned low starting voltage discharge lamp, especially discharge lamp of the present invention as having adopted, high radiant rate must be filled with pressure than for 0.1%(or higher) the inhibition gas breakdown; This inhibition when several punctures effect significantly (as shown in Figure 2).The preferable practice is than for 1%(or higher with pressure) the inhibition gas breakdown charge in the shell, with the effect of guaranteeing to suppress to puncture.
To being main component with the neon, nitrogen, fluorocarbon or CFC are approximate with the result shown in Fig. 2 for the test result of the gaseous mixture of interpolation gas.Add the pressure ratio and surpass 20% inhibition puncture gas in neon, the thermal conductivity of gaseous mixture is reduced, thereby weakened the cooling effect to arc-tube 1, therefore, the pressure ratio that suppresses the gas of puncture usefulness must be lower than 20%.The pressure of gas that suppress to puncture usefulness is than less than 10% the cooling effect that gaseous mixture produced, when being pure neon with the gas that is charged into similar (as shown in table 1).
By in the shell 5 of discharge lamp, charging into neon, can suppress the rising of arc-tube 1 tube wall temperature; And by in neon, adding pressure than the inhibition gas breakdown that is 0.1%～20%, can increase lead-in wire 4 and 4 ' between puncture voltage, thereby strengthened the radiance of discharge lamp, prevented the bulging of arc-tube 1, and avoided the discharge in shell 5.By in neon, adding pressure than being 1%(or higher) the inhibition gas breakdown, one avoid surely in shell 5 lead-in wire 4 and 4 ' between discharge; And increase to 10% by the pressure ratio that will suppress gas breakdown, the tube wall temperature of arc-tube can reduce to envelope filled go into be pure neon the time the similar level of tube wall temperature.In a word, the Zui Jia practice is to add pressure than the inhibition gas breakdown between 1%～10% in neon.
Although metal halide lamp is described as a kind of high radiant rate ultraviolet discharge lamp in the above-described embodiment, yet mercury vapor lamp, High Voltage sodium vapor lamp and compact fluorescent lamp with the interior bubble of arc-tube and shell mechanism, can be by charging into the neon that pressure is 0.1 atmospheric pressure (or higher) in the enclosure, or charge into pressure than for 80%(or higher) neon and suppress to puncture the gaseous mixture of gas, and arc-tube is produced cooling effect, thereby can make above-mentioned all kinds of discharging lamp structure compactness, radiance increases, and has prevented discharge in the enclosure.
As mentioned above, the discharge lamp of being invented has an arc-tube Nei Pao and a shell; This envelope filled neon that 0.1 atmospheric pressure (or higher) arranged, perhaps be filled with pressure than for 80%(or higher) neon and suppress to puncture the gaseous mixture of gas, suppress to puncture the rising that gas can suppress interior bubble temperature effectively, improve the load of discharge lamp, and can prevent effectively in bubble rise at work the drum and avoid discharging in the enclosure, thereby can obtain the discharge lamp of a kind of compact conformation, radiance height and dependable performance.
Claims (3)
1, a kind of have a Nei Pao and one seal described in the discharge lamp of shell of bubble, it is characterized in that, only being filled with pressure in the described shell is 0.1 atmospheric pressure or higher neon, or is filled with by neon (the pressure ratio is 80% or higher) and a kind of gaseous mixture that suppresses to puncture the gas composition of usefulness.
2, a kind of discharge lamp as claimed in claim 1, wherein, described inhibition gas breakdown comprises pressure than a kind of gas in nitrogen, carbon dioxide, sulphur hexafluoride, fluorocarbon and the fluorine carbonitride between 0.1%～20%, perhaps the gaseous mixture of above-mentioned gas.
3, a kind of discharge lamp as claimed in claim 2, wherein, said inhibition gas breakdown is in the scope of 1%～10% pressure ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101257A CN85101257B (en) | 1985-04-01 | 1985-04-01 | Discharge lamp with a discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101257A CN85101257B (en) | 1985-04-01 | 1985-04-01 | Discharge lamp with a discharge lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101257A CN85101257A (en) | 1987-01-10 |
| CN85101257B true CN85101257B (en) | 1988-03-16 |
Family
ID=4791724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101257A Expired CN85101257B (en) | 1985-04-01 | 1985-04-01 | Discharge lamp with a discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85101257B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636816B (en) * | 2007-03-12 | 2011-09-14 | 皇家飞利浦电子股份有限公司 | Low power discharge lamp with high efficacy |
-
1985
- 1985-04-01 CN CN85101257A patent/CN85101257B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101636816B (en) * | 2007-03-12 | 2011-09-14 | 皇家飞利浦电子股份有限公司 | Low power discharge lamp with high efficacy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101257A (en) | 1987-01-10 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |