CN101123164A - A non Hg or low Hg porcelain metal halogen lamp - Google Patents
A non Hg or low Hg porcelain metal halogen lamp Download PDFInfo
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- CN101123164A CN101123164A CNA200610036969XA CN200610036969A CN101123164A CN 101123164 A CN101123164 A CN 101123164A CN A200610036969X A CNA200610036969X A CN A200610036969XA CN 200610036969 A CN200610036969 A CN 200610036969A CN 101123164 A CN101123164 A CN 101123164A
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Abstract
The present invention is to provide a mercury-free or low mercury ceramic metal halide lamp comprising a ceramic electric arc tube, a ceramic sleeve for supporting electrode on two ends of a tube shell and a sealing interface at the outer end of the ceramic sleeve. Both ends of the electric arc tube are respectively provided with an electrode system, the arc tube is filled with a metal halide and an inert gas, the present invention is characterized in that: the ceramic electric arc tube of the lamp is added with selenium and/or mercury selenide to replace fully or partly the mercury of the ceramic metal halide lamp. The dosage of selenium and/or mercury selenide of the ceramic metal halide lamp is to be determined by the lamp power, the metal halide and other component are to be determined by prior art, thereby obtaining suitable electrooptical and spectral characteristic as well as a very high color rendering index. The present invention is capable of fully canceling mercury or greatly lowering mercury dosage, which complies with environmental protection requirement and is a very promising new lamp type.
Description
Technical field:
The present invention relates to a kind of ceramic gold-halogen lamp that does not have mercury or low mercury.
Background technology:
High-intensity discharge lamp such as metal halide lamp, high-pressure mercury lamp, high-pressure sodium lamp, ultrahigh pressure mercury lamp, mercury-xenon lamp etc. are still at a large amount of liquid mercury that use at present.And mercury is the noxious substance of a kind of atmosphere pollution, water source and soil, enter in the people, animal body after extremely difficult the eliminating, and with the serious harm human body, cause that people's physique is weak, aging in advance, dementia, fetal anomaly, retarded, life shortening etc.Therefore in recent years, the gesture of prohibiting mercury is gradually strict, estimates according to this trend, will forbid the production and selling of all mercurous article in the several years, the row that various light sources are also being forbidden certainly.
Before about ten years, people have promptly begun not have the research and development of mercury high-intensity discharge lamp such as anhydrous silver halide lamp, also do not succeed so far.Someone proposes to replace mercury with xenon, and still, the lamp pressure drop will be low excessively like this, and lamp current is very big, and in addition light efficiency is very low, and for reaching same illuminating effect, power consumption will significantly increase, and does not fit into as general lighting.The someone proposes with zinc for mercury again, and still, the fusing point of zinc is 420 ℃, and boiling point is then up to 907 ℃.Form sufficiently high zinc fume pressure for zinc is evaporated in a large number, the electric arc tube working temperature needs up to more than the 1400K.The quartz ampoule that is operated under such high-temperature is not only corroded under the bombardment of a large amount of metals, alkali metal and halide ion, and crystallization and cause devitrification, bubbling, burst very easily, and the lamp life-span is very short, is difficult to practical value.The somebody proposes with some metal halide such as ScI
3, ZnI
2Replace mercury, but also because the discharge pressure drop is low and other problems are difficult to practicality.
Publication number is that the patent (open day is on September 28th, 2005) of CN1674206A discloses " a kind of high-intensity discharge lamp that does not have mercury or low mercury ", this patent utilization chemical element seleno is made buffer gas for mercury, successfully made the no mercury Metal halogen lamp of quartz glass electric arc tube, complete compliance with environmental protection requirements of this patent and development trend.
Semitransparent ceramics is a best electric arc pipe shell material of making Metal halogen lamp class light source, is quartzy regeneration product, all can obtain significantly to promote in order to make the Metal halogen lamp various performance parameters, but this lamp still will cause serious mercury pollution after losing efficacy, need draw attention.
Summary of the invention
The purpose of this invention is to provide a kind of ceramic gold-halogen lamp that does not have mercury or low mercury.
For reaching above purpose, the present invention is achieved by the following technical solutions:
Selenium will all evaporate under the working temperature of arc tube for ceramic metal halide lamp, can form sufficiently high pressure steam pressure (being decided by loading) thereby can be used for replacing mercury to do buffer gas in the ceramic gold-halogen lamp.It is 493K that the melt temperature of selenium is 220 ℃, and boiling point is 688 ℃ is 961K, though this temperature is higher than mercury, but because ceramic arc tube shell wall load is big, temperature is high, can bear 1200 ℃ high temperature, and ceramic cartridge have the ability and the bigger ability of bearing pressure of the anti-metal halide corrosion of the high temperature stronger than quartzy shell.Compare the requirement of the easier satisfied no mercury Metal halogen lamp of ceramic gold-halogen lamp with traditional quartz metal halide lamp.
The effect of selenium is to replace mercury to make buffer gas, produces enough selenium vapour densities, and with electrical quantitys such as adjusting electron energy and lamp pressure drops, and its luminous effect is unessential, and luminescence process is still mainly and is finished by metal halide.
Should determine according to the power of lamp with the consumption of selenium and/or mercury selenide replacement mercury in the ceramic gold-halogen lamp of the present invention.
Referring to implementing illustration: the present invention includes an envelope of quartz glass 9, ceramic arc tube 1, ceramic sleeve 3a, 3b that electric arc tube two end supports electrode is used, pottery oversleeve pipe outer end is ceramic seal scolder 5a, 5b, electrode system 4a, 4b respectively are equipped with in the electric arc tube two ends, and electric arc tube electrode 2a, 2b draw support wire and support 6 after 4a, 4b draw electric arc tube, 7 connect two lamp base 11a under the lamp holder 10 again, and 11b draws.Except that selenium, also be filled with metal halide and inert gas in the electric arc tube.
In the ceramic arc tube of described lamp, add selenium and/or make buffer gas with whole replacement mercury, certainly for keeping the former also available an amount of selenium of parameter that fills mercury lamp, part replaces the mercury pollution seriousness after the mercury that charged into originally in the ceramic gold-halogen lamp fills mercury amount and lamp and lost efficacy with minimizing.
The total atom mole that adds selenium or mercury selenide in the semi-transparent ceramic arc tube of described lamp equals substituted mercury mole, substituted mercury can former fill the mercury mole 5%～100% between control.
For the ceramic gold-halogen lamp below the 50W, can fully phase out the mercury that charges into and replace the selenium or the 50% mole mercury selenide of same molar.
For the ceramic gold-halogen lamp more than the 50W, can reduce the mercury that routine charges into the 5%-100% mole, and replace the selenium of same molar or replace 50% mercury selenide of the mole of the mercury that has been substituted.
For the ceramic gold-halogen lamp more than the 100W, can reduce conventional 10%～60% the mole that charges into mercury, and 50% the mercury selenide that fills the mercury mole that replaces the selenium of same molar or reduced.
Can in electric arc tube, add or not add the halogen compounds of selenium.The mole that adds the selenium halogen compounds is less than 10% of the mole that adds selenium.Described selenium halogen compounds is selenium bromine compounds and/or selenium iodine compound.
Its ceramic arc tube shell is a spheroidal shown in Figure 2 or shown in Figure 3 cylindrical.
Its ceramic arc tube shell can be Fig. 2, one-piece type Fig. 4 that also can be shown in Figure 3, syllogic shown in Figure 5.
The ceramic gold-halogen lamp that the present invention does not have mercury or low mercury in use, determine that according to the watt level of lamp only selenium and/or mercury selenide consumption are partially or completely to replace mercury, and determine other compositions such as metal halide according to prior art, then can obtain suitable photoelectricity and spectral characteristic, and have very high color rendering index.
The ceramic gold-halogen lamp that the present invention does not have mercury or low mercury can fully phase out or significantly reduce the consumption of mercury; the development trend of compliance with environmental protection requirements; it is a kind of up-and-coming novel lamp kind; this kind light source can be made various structures such as single-ended, both-end or projection-type and compact, reflection-type and anti-riot type structure or other structures, no matter which kind of structure all belongs to this patent protection range.
Description of drawings
Fig. 1 is a ceramic gold-halogen lamp structural representation of the present invention (monofocal)
Fig. 2 elliposoidal one arc tube for ceramic metal halide lamp structural representation
The cylindrical one of Fig. 3 does not have mercury arc tube for ceramic metal halide lamp shell structural representation
Fig. 4 elliposoidal trisome arc tube for ceramic metal halide lamp shell structural representation
The cylindrical trisome arc tube for ceramic metal halide lamp of Fig. 5 shell structural representation
Description of reference numerals
Embodiment
Below in conjunction with drawings and Examples the present invention is done and to describe in further detail
As Fig. 1～shown in Figure 3, a kind of ceramic gold-halogen lamp that does not have mercury or low mercury, comprise a shell 9, electric arc tube 1, support 6,7, getter 8, electrode system 4a, 4b respectively are equipped with in the electric arc tube two ends, and electric arc tube electrode 2a, 2b are after 4a, 4b draw electric arc tube, two lamp base 11a under the lamp holder 10 again, 11b draws.Be filled with required metal halide of conventional ceramic gold-halogen lamp and inert gas in the electric arc tube.
Ceramic gold-halogen lamp power is 35W in the present embodiment, fully phases out mercury in the electric arc tube, replaces the Se of same molar, according to the prior art standard, matches other metal halide compositions in right amount, can regulate required colour temperature.
Embodiment 2
The present embodiment modulated structure adopts three stage structure as shown in Figure 4, and just the lamp power selection is 70W, is filled with required metal halide of conventional ceramic gold-halogen lamp and inert gas in the electric arc tube.
According to the prior art standard, suitably reduce the mercury amount that charges into, the ratio that reduces is former 50% of the mercury mole that charges into, replace the selenium simple substance of same molar, or fully phase out mercury and replace the HgSe of mercury mole 50%, and match other metal halide compositions, make no mercury mercury selenide ceramic gold-halogen lamp.
Embodiment 3
The present embodiment structure as shown in Figure 5, the lamp power selection is 150W, is filled with required metal halide of conventional ceramic gold-halogen lamp and inert gas in the electric arc tube.
According to the prior art standard, suitably reduce charging into the mercury amount, the ratio of minimizing is former 30% of the mercury mole that charges into, replace the selenium simple substance of same molar, or reduce and fill 60% of mercury amount, replace the HgSe of mercury mole 15%, and match other metal halide compositions.
Embodiment 4
Other conditions are identical with above embodiment 1, just add 5% the Se that charges into the Se mole in the electric arc tube again
2I
2, to strengthen the halogen tungsten circulation, prolonging lamp tube service life is improved the lamp behaviour parameter.
Embodiment 5
Other conditions are identical with above embodiment 2, just add 5% the Se that charges into the Se mole in the electric arc tube again
2Br
2, to strengthen the halogen tungsten circulation, prolonging lamp tube service life is improved the lamp behaviour parameter.
Other conditions are identical with above embodiment 5, just add 5% the Se that charges into the Se mole in the electric arc tube again
2I
2, Se
2Br
2The mixing circulation agent is to replace Se
2I
2Or Se
2Br
2
Claims (10)
1. ceramic gold-halogen lamp that does not have mercury or low mercury, include ceramic arc tube, the ceramic sleeve that shell two end supports electrode is used (3a, 3b), there is sealing sealing-in mouth (5a, 5b) pottery oversleeve pipe outer end, electrode system (4a, 4b) respectively is equipped with at the electric arc tube two ends, be filled with metal halide and inert gas in the electric arc tube, it is characterized in that: in the ceramic arc tube of described lamp, add selenium and/or the mercury of mercury selenide to charge into originally in all or part of replacement ceramic gold-halogen lamp.
2. the ceramic gold-halogen lamp of no mercury as claimed in claim 1 or low mercury, it is characterized in that: the total atom mole that adds selenium and/or mercury selenide in the electric arc tube of described lamp equals described substituted mercury mole, substituted mercury be former fill the mercury mole 5%～100%.
3. the ceramic gold-halogen lamp of no mercury as claimed in claim 1 or 2 or low mercury is characterized in that: for the following ceramic gold-halogen lamp of 50W, fully phase out the mercury that charges into and replace the selenium or the 50% mole mercury selenide of same molar.
4. the ceramic gold-halogen lamp of no mercury as claimed in claim 1 or 2 or low mercury, it is characterized in that: for the metal halide lamp more than the 50W, reduced the conventional mercury that charges into the 5%-100% of mole, and replaced the selenium of same molar or replace 50% mercury selenide of the mole of substituted mercury.
5. the ceramic gold-halogen lamp of no mercury as claimed in claim 3 or low mercury, it is characterized in that: for the above ceramic gold-halogen lamp of 100W, reduced and conventional filled 10%～60% of mercury mole, and replaced 50% the mercury selenide that fills the mercury mole of the selenium of same molar or minimizing.
6. as the ceramic gold-halogen lamp of arbitrary described no mercury of claim 1 to 5 or low mercury, it is characterized in that: also in electric arc tube, add or do not add the selenium halogen compounds.
7. as the ceramic gold-halogen lamp of arbitrary described no mercury of claim 1 to 6 or low mercury, it is characterized in that: the mole that adds the selenium halogen compounds is less than 10% of the mole that adds selenium.
8. as the ceramic gold-halogen lamp of arbitrary described no mercury of claim 1 to 7 or low mercury, it is characterized in that: described selenium halogen compounds is selenium bromine compounds and/or selenium iodine compound.
9. as the ceramic gold-halogen lamp of arbitrary described no mercury of claim 1 to 8 or low mercury, it is characterized in that: its ceramic arc tube shell is a spheroidal or cylindrical.
10. the ceramic gold-halogen lamp of arbitrary described no mercury of claim 1 to 8 or low mercury, it is characterized in that: its ceramic arc tube shell can be the one-piece type syllogic that also can be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610036969XA CN101123164A (en) | 2006-08-08 | 2006-08-08 | A non Hg or low Hg porcelain metal halogen lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610036969XA CN101123164A (en) | 2006-08-08 | 2006-08-08 | A non Hg or low Hg porcelain metal halogen lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101123164A true CN101123164A (en) | 2008-02-13 |
Family
ID=39085434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610036969XA Pending CN101123164A (en) | 2006-08-08 | 2006-08-08 | A non Hg or low Hg porcelain metal halogen lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101123164A (en) |
-
2006
- 2006-08-08 CN CNA200610036969XA patent/CN101123164A/en active Pending
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Open date: 20080213 |