WO2001067488A1 - Lampe a decharge electrique - Google Patents
Lampe a decharge electrique Download PDFInfo
- Publication number
- WO2001067488A1 WO2001067488A1 PCT/JP2001/001837 JP0101837W WO0167488A1 WO 2001067488 A1 WO2001067488 A1 WO 2001067488A1 JP 0101837 W JP0101837 W JP 0101837W WO 0167488 A1 WO0167488 A1 WO 0167488A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- discharge lamp
- tube
- ceramic
- alloy
- lamp according
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 137
- 230000005611 electricity Effects 0.000 claims abstract description 111
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 239000011521 glass Substances 0.000 claims abstract description 36
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 34
- 150000002367 halogens Chemical class 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims description 46
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 38
- 239000000463 material Substances 0.000 claims description 38
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 32
- 229910052750 molybdenum Inorganic materials 0.000 claims description 30
- 239000011733 molybdenum Substances 0.000 claims description 30
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical group [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 27
- 229910052758 niobium Inorganic materials 0.000 claims description 26
- 239000010955 niobium Substances 0.000 claims description 26
- 239000003566 sealing material Substances 0.000 claims description 26
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 20
- 239000010937 tungsten Substances 0.000 claims description 14
- 229910001507 metal halide Inorganic materials 0.000 claims description 13
- 150000005309 metal halides Chemical class 0.000 claims description 13
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 13
- 229910052721 tungsten Inorganic materials 0.000 claims description 13
- 239000011195 cermet Substances 0.000 claims description 12
- 229910001182 Mo alloy Inorganic materials 0.000 claims description 10
- 229910052715 tantalum Inorganic materials 0.000 claims description 10
- 229910001362 Ta alloys Inorganic materials 0.000 claims description 9
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000002356 single layer Substances 0.000 claims description 8
- 229910001257 Nb alloy Inorganic materials 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052596 spinel Inorganic materials 0.000 claims description 4
- 239000011029 spinel Substances 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910001080 W alloy Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910000575 Ir alloy Inorganic materials 0.000 claims description 2
- 229910000629 Rh alloy Inorganic materials 0.000 claims description 2
- 239000002365 multiple layer Substances 0.000 claims 2
- 229910052738 indium Inorganic materials 0.000 claims 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 14
- 230000037431 insertion Effects 0.000 abstract description 14
- 239000000565 sealant Substances 0.000 abstract 2
- 239000005394 sealing glass Substances 0.000 description 102
- 230000035882 stress Effects 0.000 description 62
- 238000007789 sealing Methods 0.000 description 61
- 239000000872 buffer Substances 0.000 description 59
- 239000004020 conductor Substances 0.000 description 41
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 21
- 230000004907 flux Effects 0.000 description 16
- 239000007789 gas Substances 0.000 description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- 238000003466 welding Methods 0.000 description 14
- 229910044991 metal oxide Inorganic materials 0.000 description 10
- 150000004706 metal oxides Chemical class 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008646 thermal stress Effects 0.000 description 10
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 9
- 229910052753 mercury Inorganic materials 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000009877 rendering Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 8
- GQKYKPLGNBXERW-UHFFFAOYSA-N 6-fluoro-1h-indazol-5-amine Chemical compound C1=C(F)C(N)=CC2=C1NN=C2 GQKYKPLGNBXERW-UHFFFAOYSA-N 0.000 description 7
- 229910052786 argon Inorganic materials 0.000 description 7
- 235000009518 sodium iodide Nutrition 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000005856 abnormality Effects 0.000 description 6
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 description 6
- 230000035939 shock Effects 0.000 description 6
- CMJCEVKJYRZMIA-UHFFFAOYSA-M thallium(i) iodide Chemical compound [Tl]I CMJCEVKJYRZMIA-UHFFFAOYSA-M 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 230000004397 blinking Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 238000002788 crimping Methods 0.000 description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 4
- 229910001093 Zr alloy Inorganic materials 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 2
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- HYXGAEYDKFCVMU-UHFFFAOYSA-N scandium oxide Chemical compound O=[Sc]O[Sc]=O HYXGAEYDKFCVMU-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000691 Re alloy Inorganic materials 0.000 description 1
- 229910000756 V alloy Inorganic materials 0.000 description 1
- TYJGDRMFTZPTOS-UHFFFAOYSA-L [Cl-].[Cs+].[I+].[Cl-] Chemical compound [Cl-].[Cs+].[I+].[Cl-] TYJGDRMFTZPTOS-UHFFFAOYSA-L 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/366—Seals for leading-in conductors
- H01J61/368—Pinched seals or analogous seals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
Definitions
- the present invention relates to a discharge lamp using a translucent ceramic tube as an arc tube, and more particularly to an improvement in a sealing structure at an arc tube end.
- quartz glass has been used as the material of the arc tube of the high-pressure discharge lamp, but in recent years, a high-pressure discharge lamp using a translucent ceramic as the material of the arc tube has been commercialized.
- the high-pressure discharge lamps especially metal halide lamps
- the quartz glass if the arc tube material is quartz glass, the quartz glass gradually reacts with the luminous material halide during lighting, causing the deterioration of the life characteristics. create.
- the arc tube is made of translucent ceramics, it will not easily react with metal halide. It has better life characteristics than a quartz glass arc tube, and the arc tube can be made compact. There is a possibility that a lamp with good lamp efficiency and color rendering properties can be made. For these reasons, in recent years, discharge lamps using translucent ceramics for the arc tube material have been put to practical use.
- the arc tube is composed of a translucent ceramic thick tube 11 and the same translucent ceramic thin tube 12 provided at both ends. Inside the thin tube 12, an electricity introducing body composed of a first electricity introducing body 24 and a second electricity introducing body 27 is passed.
- the electric conductor 24 is made of an electric conductor having a halogen resistance, such as molybdenum or cermet.
- the second electricity introducing body 27 is formed of an electric conductor having no halogen resistance, such as a niob.
- the first electricity introduction body 25 and the second electricity introduction body 27 are butt-welded at a weld 26.
- the electrode is composed of an electrode core 21 butt-welded to the first electrode 24 at a welding portion 25 and a coil 20 wound around the electrode core 21. I have.
- the first electricity introducing body 24 holding the electrode core 21, the second electricity introducing body 27, and the thin tube 12 are hermetically sealed with a halogen-resistant sealing glass 30.
- the second electricity introducing body 27 is protected from the corrosion of halogen by covering the portion inserted into the thin tube 12 with a sealing glass 30 having halogen resistance. Further, a part of the first electricity introducing body 24 is also covered with the sealing glass 30.
- the gap between the electricity introducing body (the first electricity introducing body 24 and the second electricity introducing body 27) and the thin tube 12 becomes large, and sealing becomes difficult. . That is, since the sealing glass 30 fills a large gap between the electricity introducing body and the thin tube 12, this thick sealing gas Airtight leakage from the lath 30 layer is likely to occur.
- the heat resistance of the sealing part is better as the layer thickness of the sealing glass 30 is thinner.
- the layer thickness is inevitably thicker. Even if the thin tube 12 cracks at the time of sealing, or even if the sealing is successful, the heat cycle caused by the flashing of the lamp may cause early leaks from the sealing glass 30 layer due to the heat cycle. Atsuta.
- the conventional structure can be applied to relatively small lamps with a smaller diameter of less than 1.3 mm and a lamp power consumption of less than 150 W, but the larger tube has a larger power consumption. It was not applicable to power lamps.
- the sealing glass 3 0, conventionally two types of have been used, inferior in air tightness holding the side facing the discharge space was excellent halogen resistance, A 1 2 0 3: 3 0 Weight%, S i 0 2: 40 weight D y 2 0 3
- a material having a composition of: 13% by weight Si02: 37% by weight and Dy203: 50% by weight is used. Since two types of materials are used for the sealing glass 30 in this manner, the sealing process must be divided into two stages, and the sealing process becomes complicated, which is not suitable for mass production.
- the present invention has been made in view of such circumstances, and a discharge lamp capable of improving the reliability of a sealing portion of a discharge arc tube and improving the life characteristics.
- the purpose is to provide
- Still another object of the present invention is to provide a discharge lamp capable of improving the reliability of the sealing portion and the mass productivity of the sealing step. Disclosure of the invention
- the discharge lamp of the present invention uses an arc tube made of a light-transmitting ceramic having small-diameter portions formed at both ends, and an electric introduction body is inserted into the small-diameter portion.
- a sealing member that is hermetically fixed with a material, and a fitting member is provided between the electricity introducing body and the small-diameter portion, and between the electricity introducing body and the fitting member, and The glass sealing material is filled between the fitting member and the small diameter portion.
- the translucent ceramic used for the arc tube includes, for example, translucent alumina, sapphire, Yttria, yttrium 'anoremium garnet, aluminum nitride, aluminum nitride, etc. can be used. From the viewpoint of price, translucency, etc., translucent alumina and aluminum nitride are preferably used. It is preferable to use translucent alumina, more preferably.
- the glass sealing material is a mixture comprising a A 1 2 0 3 and S i 0 2 and rare earth element oxides (especially D y 2 0 3), in particular, the weight ratio, A 1 2 0 3 : 17 ⁇ 3% by weight Sio 2: 22 ⁇ 3% by weight, Dy203: 61 ⁇ 3% by weight is preferred.
- the A 1 2 0 3 - S i 0 2 - D y 2 0 3 based mixtures may not be consists only three components, when the weight ratio of each component is within the above numerical range May contain other components in addition to these three components.
- other components for example, molybdenum oxide, scandium oxide, yttrium oxide, magnesium oxide and the like can be used.
- a glass sealing material having such a composition Since a glass sealing material having such a composition is used, it is possible to provide a long-life discharge lamp having excellent halogen resistance and reliability in the sealed portion.
- the glass sealing material having such a composition is excellent in both the halogen resistance and the airtightness. Therefore, this one type of glass sealing material can realize both of these excellent characteristics, and the sealing process is completed in one sealing process, so that the reliability of the sealing portion and the mass production of the sealing process are achieved. Performance can be improved.
- heat-resistant metal, ceramic or cermet can be used as the fitting member.
- the fitting member functions as a stress buffer, and is applied between the glass sealing material and the electricity introducing member, which is added to the hermetic sealing portion hermetically sealed with the glass sealing material.
- the thermal stress based on the difference in the coefficient of linear expansion is absorbed by this fitting member (stress buffer), and the occurrence of cracks in the glass sealing material of the hermetically sealed portion due to the heat cycle caused by the blinking of the lamp is prevented. You. And such cracks do not occur If this is the case, there will be no airtight leakage at the sealed portion, and the life characteristics of the lamp can be improved.
- heat-resistant metal 0 ⁇ 1 0 0 0 ° linear expansion coefficient C is 6. 5 X 1 0 6.
- Metals with C or higher specifically, niobium, tantalum, iridium, rhodium, vanadium, titanium, platinum, niobium alloy, tantalum alloy, iridium alloy, rhodium alloy, vanadium alloy , Titanium alloy and platinum alloy are preferred. When these heat-resistant metals are used. Since the coefficient of linear expansion is very similar to that of ceramics, and it is a soft and easily deformable metal, the stress to absorb the thermal stress generated between dissimilar materials Suitable as a buffer, the seal is reinforced.
- the sealing portion is further strengthened.
- the approximation of the coefficient of linear expansion means that the difference is within 25% compared to the coefficient of linear expansion of the ceramic constituting the arc tube (small diameter portion). The closer, the better.
- a material containing at least one of alumina, titania, spinel, beryllia and the like is particularly preferably cylindrical, and a so-called ceramic sleeve is preferred.
- a single layer or a plurality of layers of ceramics made of the above-described ceramic and a single layer or a plurality of layers of heat-resistant metal made of the above-described heat-resistant metal are fitted. You may comprise a member.
- the electrode core is not completely covered with the ceramic sleeve, but a metal coil is wound around the electrode core. This is because the metal has a higher thermal conductivity than the ceramic, so that the heat generated at the tip of the electrode can be effectively transmitted to the rear.
- the fitting member is composed of a ceramic sleeve and the small-diameter portion is composed of a small tube
- the inside diameter of the small tube is A (mm) and the outside diameter of the ceramic rib is B (mm)
- the electricity introducing body is composed of one kind of metal
- an alloy of tungsten, molybdenum, tungsten, an alloy of molybdenum, or the like is preferable.
- the linear expansion coefficient of the electricity guide is similar to the halogen-resistant first member connected to the electrode (electrode core) and the translucent ceramic used for the arc tube (small diameter part).
- You may comprise with a 2nd member.
- the above-mentioned insertion member is provided between the first member and the small-diameter portion, and a joint between the first member and the second member, for example, by welding is covered with a glass sealing material. Have been done.
- the second member having a linear expansion coefficient similar to that of the light-transmitting ceramic used for the arc tube (small diameter portion) distortion caused by a difference in linear expansion coefficient can be reduced. Cracking of the small diameter portion is more effectively prevented, and airtight leakage from the glass sealing material layer is prevented.
- the linear expansion coefficient is approximated.
- the difference between the linear expansion coefficient of the second member and the linear expansion coefficient of the translucent ceramic is the difference between the linear expansion coefficient of the translucent ceramic. It means that it is within 25% of the value of expansion coefficient, The closer, the better.
- the fitting member and the light-transmitting ceramic, and the fitting member and the member 2 may have similar linear expansion coefficients as described above.
- the light-transmitting ceramic is preferably used.
- the difference between the maximum value and the minimum value of the three linear expansion coefficients of the lock, the fitting member, and the second member is within 25% of the linear expansion coefficient value of the translucent ceramic. Is preferred.
- the inner diameter of the thin tube as the small diameter portion is 1.3 mm or more
- the insertion length of the second member on the terminal side of the electric introducing body into the thin tube is C (mm)
- the glass sealing material in the thin tube When the inflow length of D is set to D (mm), satisfy D—C ⁇ 1.0 (mm). Since the inner diameter of the thin tube is 1.3 mm or more, a large electrode can pass through the thin tube, and a lamp with large power consumption can be put into practical use. In addition, since it is configured so as to satisfy D_C ⁇ 1.0 (mm), a chemical reaction occurs between the ionizable filler containing a metal halide inside the arc tube and the second member. It is possible to provide a discharge lamp having excellent sealing section reliability and excellent life characteristics.
- the first member molybdenum, an alloy of molybdenum, cermet, or the like can be used.
- the first member is molybdenum or a molybdenum alloy having a diameter of 0.3 mm or more and 0.7 mm or less.
- the second member can be made of niobium, an alloy of niobium, an alloy of tantalum, tantalum, or the like. By forming the second member with such a material, it is possible to prevent airtight leakage from occurring in the glass sealing material layer in a portion in contact with the second member.
- FIG. 1 is a cross-sectional view showing a conventional example of a sealed structure of an arc tube of a discharge lamp
- FIG. 2 is a cross-sectional view showing a schematic configuration of an entire discharge lamp of the present invention
- FIG. 3 is related to the first embodiment.
- FIG. 4 is a cross-sectional view showing the configuration of the discharge lamp according to the second embodiment
- FIG. 4 is a cross-sectional view showing the configuration of the discharge tube according to the second embodiment
- FIG. 6 is a cross-sectional view showing the configuration of the arc tube of the discharge lamp according to the fourth embodiment.
- FIG. 7 is a cross-sectional view showing the configuration of the arc tube of the discharge lamp according to the fourth embodiment.
- FIG. 1 is a cross-sectional view showing a conventional example of a sealed structure of an arc tube of a discharge lamp
- FIG. 2 is a cross-sectional view showing a schematic configuration of an entire discharge lamp of the present invention
- FIG. 3 is related to the first embodiment.
- FIG. 8 is a cross-sectional view showing the configuration of the discharge tube of the discharge lamp according to the fifth embodiment
- FIG. 9 shows the configuration of the discharge tube of the discharge lamp according to the sixth embodiment
- FIG. 10 is a sectional view showing the configuration of the arc tube of the discharge lamp according to the seventh embodiment
- FIG. 11 is a sectional view showing the eighth embodiment
- FIG. 12 is a cross-sectional view showing a configuration of an arc tube of a discharge lamp according to an embodiment
- FIG. 12 is a cross-sectional view showing a configuration of an arc tube of a discharge lamp according to a ninth embodiment
- FIG. FIG. 14 is a cross-sectional view showing the configuration of the arc tube of the discharge lamp according to the embodiment, FIG.
- FIG. 14 is a cross-sectional view showing the configuration of the arc tube of the discharge lamp according to the eleventh embodiment
- FIG. FIG. 16 is a cross-sectional view showing the configuration of the arc tube of the discharge lamp according to the embodiment
- FIG. 16 is a cross-sectional view showing the sealing structure of the arc tube of the discharge lamp according to the embodiment 13
- FIG. 7 is a cross-sectional view showing a sealing structure of an arc tube of a discharge lamp according to a 14th embodiment.
- FIG. 2 is a cross-sectional view showing a schematic configuration of the entire discharge lamp of the present invention.
- 1 is an arc tube
- 2 is a quartz glass tube
- 3 is a hard tube.
- 4 is a getter
- 5 is a base
- 6 is a complementary conductor with a metal wire along the arc tube 1 to facilitate starting
- 1 is a thick tube of the arc tube 1 This is the thin tube of the arc tube 1.
- FIG. 3 is a sectional view showing the configuration of the arc tube 1 of the discharge lamp according to the first embodiment of the present invention.
- both ends of the thick tube 11 made of light-transmitting ceramic are connected to the light-transmitting ceramic disk 13 via a disc 13 made of light-transmitting ceramic.
- a narrow tube 12 made of ceramic is provided in an airtight manner. This translucent ceramic is specifically translucent alumina.
- an ionizable filler containing a metal halide is sealed.
- an electricity introducing body 23 made of tungsten also serving as an electrode core is passed.
- a first coil 20 and a second coil 22 are wound around the electrode pole core of the electricity introducing body 23.
- the purpose of the first coil 20 is to protect the electrode from the high temperature of the arc spot formed at the electrode tip when the lamp is turned on.
- the purpose of the second coil 22 is to transfer the heat of the electrode tip to the rear of the electrode. This is to make it easy to escape.
- a tubular stress buffer 40 made of niobium as a fitting member is provided between the outer end of the thin tube 12 and the electricity introducing body 23, and the thin tube 12 and the stress buffer 40 are provided.
- the electricity introducing body 23 is hermetically fixed by a halogen-resistant sealing glass 30. That is, the sealing glass 30 is filled between the electricity introducing body 23 and the stress buffer 40 and between the stress buffer 40 and the thin tube 12.
- arc tube 1 Used for arc tube 1 (thick tube 11, thin tube 12 and disc 13)
- the material of the ceramic sapphire, yttria, yttrium 'aluminum' garnet, aluminum nitride, etc. can be used in addition to translucent alumina.
- the material of the electricity introducing body 23 besides tungsten, molybdenum, niobium, tantalum, rhedium, an alloy of platinum and tungsten, an alloy of molybdenum, and the like can be used.
- the sealing glass 3 for example, A 1 2 03 - S i 02 system, A 1 2 0 3 - C a 0- B a 0 system or the like of the glass material that can be used for, airtight sealing section, Preferably, it is good to form it at the outer end of the small diameter 12.
- oxidation of A l 2 03 one S i 0 is more preferably a 2-based, A 1 2 0 3 and S i 0 2 and rare earth elements things (especially D y 2 0 3 is good preferable) that is particularly good composed of a mixture containing a.
- Sealing glass 3 0 in this example A 1 2 0 3, S i 0 2 and D y 2 0 consists of three mixtures, the composition ratio is 1 7 ⁇ 3 weight 22 ⁇ 3% by weight in this order, and 6 1 ⁇ 3 weight.
- molybdenum oxide, scandium oxide, potassium oxide, magnesium oxide, etc. may be contained as other components.
- the properties of the sealing glass 30 are as follows: melting point: 1,390 ° C, coefficient of linear expansion: 6.5 X 10— e / ° C. Both incoming call reliability can be achieved.
- the composition of the sealing glass 30 is out of the above range, the following inconvenience occurs.
- the melting point increases and the heating temperature in the sealing step must be raised by 50 ° C. or more. If the sealing temperature is increased, the temperature of the entire arc tube 1 also increases, so that part of the mercury and metal halide enclosed in the arc tube 1 evaporates and is lost. You. If part of the fill is lost, the characteristics of the manufactured discharge lamp will deviate from the design values. When the composition of the sealing glass 30 is in the above range, such a phenomenon does not occur, and a discharge lamp having various characteristics as designed can be produced. Further, when the composition of the sealing glass 30 is not in the above range, the coefficient of linear expansion changes, and the thermal shock resistance of the sealed portion decreases. When the coefficient of linear expansion changes, the balance of the coefficient of linear expansion of the thin tube 12, the electric conductor 23, and the sealing glass 30 is lost, and the sealing glass 30 due to the thermal shock caused by the repeated turning on and off of the lamp. Cracks will occur in the
- the metal stress buffer 40 other metals besides niobium can be used.
- the inventors of the present invention have conducted trial lighting tests of four types of discharge lamps in which the stress buffer 40 is composed of niobium, tantalum, molybdenum, and tungsten, respectively.
- the stress buffer 40 is composed of niobium, tantalum, molybdenum, and tungsten, respectively.
- no problems were found in the case of niobium and tantalum.
- molybdenum and tungsten cracks occurred in the thin tube 12 because the linear expansion rates did not match.
- 0-1, 0 0 0 linear expansion coefficient ° C of each of these metals are each, niobium: 6.
- the stress buffer 40 used has a coefficient of thermal expansion between the coefficient of thermal expansion of the electrical conductor 23 and the coefficient of thermal expansion of the ceramic constituting the thin tube (thin tube 11). It is preferable that the coefficient of thermal expansion of the ceramic forming the thin tube portion (small tube 11) is the same as that of the ceramic forming the thin tube portion (small tube 11). Those having a coefficient of thermal expansion close to the thermal expansion coefficient of the material are more preferable.
- the coefficient of thermal expansion is more preferably larger than that of the electric conductor 23 and is equal to or less than the expansion coefficient of the ceramic constituting the small-diameter portion (the thin tube 11), and still more preferably The one having a thermal expansion coefficient closer to the expansion coefficient of the ceramic than the expansion coefficient of the air introduction body 23 is preferable.
- the coefficient of thermal expansion of the electric conductor 23, the sealing glass 30, the stress buffer 40, and the ceramic constituting the small-diameter portion (the thin tube 11) increases in this order. It is good to have a connection (the smallest electrical conductor).
- FIG. 4 is a cross-sectional view showing a configuration of an arc tube 1 of a discharge lamp according to a second embodiment of the present invention. 4, the same parts as those in FIG. 3 are denoted by the same reference numerals, and their description will be omitted.
- a ceramic tube 51 for positioning the stress buffer 40 is provided between the outer end of the thin tube 12 and the electricity introducing body 23, and the stress buffer is provided.
- the body 40 is positioned on the second coil 22 via the ceramic tube 51.
- the sealing glass 30 is filled up to a position several mm from the stress buffer 40 side of the ceramic tube 51.
- FIG. 5 is a cross-sectional view showing a configuration of an arc tube 1 of a discharge lamp according to a third embodiment of the present invention. 5, the same parts as those in FIG. 3 are denoted by the same reference numerals, and their description is omitted.
- the electrode core 2 made of stainless steel butt-welded at the welding portion 25 is used.
- molybdenum As the electric conductor 24, the reliability of the sealing portion is further improved as compared with the case where tungsten is used. The reason is that the coefficient of linear expansion of molybdenum is closer to that of ceramics (especially translucent alumina) than to tungsten. Also, among molybdenum, molybdenum containing 0.1 to 1.0% by weight of lanthanum or lanthanum oxide is unlikely to be embrittled by the growth of recrystallized particles at high temperatures, and is used as an electric conductor 24. It is better because it is better. Further, an alloy of molybdenum and rhenium can also be used as the electric conductor 24. In addition, a cermet having conductivity by molding and sintering a mixture of alumina and molybdenum can be used as the electric conductor 24.
- FIG. 6 is a cross-sectional view showing a configuration of an arc tube 1 of a discharge lamp according to a fourth embodiment of the present invention. 6, the same parts as those in FIG. 5 are denoted by the same reference numerals, and their description is omitted.
- the electricity introducing body is composed of the first electricity introducing body 24 as the first member and the second electricity introducing body 27 as the second member.
- the electrode core 21 and the first electric conductor 24 are butt-welded at the welding portion 25 as in the third embodiment, and the first electric conductor 24 and the second electric conductor 24 are connected to each other.
- the insert 27 is butt-welded at a weld 26.
- the first electric conductor 24 as in the third embodiment, molybdenum, an alloy of molybdenum, cermet, or the like can be used.
- the second electrical conductor 27 must have heat resistance and material properties that have a linear expansion coefficient close to that of ceramics.
- Such materials include niobium, tantalum, and niobium alloys. , Tantalum alloys, cermets, etc. can be used.
- Niobium, Yuntar and their alloys have particularly good sealing because their linear expansion coefficients are very similar to those of alumina ceramics.
- these metals do not have halogen resistance, they need to be covered with a sealing glass 30 having halogen resistance. Therefore, in the structure of FIG. 6, the joint between the first electricity introduction body 24 and the second electricity introduction body 27 is covered with the sealing glass 30.
- the inner diameter of the thick tube 11 is 9.1 mm
- the inner diameter of the thin tubes 12 at both ends is 1.0 mm
- the length between the electrodes is 10 mm.
- the diameter of the electrode core 21 is 0.6 mm
- the first coil 20 has a tungsten wire with a diameter of 0.18 mm wound around the electrode core 21 for 4 to 5 turns, with a maximum diameter of 0. It is 96 mm.
- the stress buffer 40 composed of a heat-resistant metal tube, an Nb-1% Zr alloy with an inner diameter of 0.65 mm, an outer diameter of 0.95 mm, and a length of 3.0 mm was used.
- the electricity introducing body was composed of a first electricity introducing body 24 made of molybdenum and a second electricity introducing body 27 made of niobium.
- Sealing glass 3 0, A 1 2 03 having an optimal composition ratio - with a mixture of (6 1 wt 1 7 wt - - 2 2 wt%) of metal oxide - S i 02 D y 2 0 3 system .
- the sealing glass 30 fills the gap between the electricity introducing body and the stress buffer 40 and the gap between the stress buffer 40 and the thin tube 12 up to about 4 mm from the end of the thin tube 12. I have.
- the stress Since the entirety of the buffer 40 is covered with the sealing glass 30 having halogen resistance, the stress buffer 40 is protected from corrosion by halogen.
- mercury about 10 mg
- dysprosium iodide about 1 mg
- thallium iodide about 3 mg
- sodium iodide about 2 mg
- iodide Cesium: About 1 mg and about 8 kPa of argon gas as the starting gas are sealed.
- a discharge lamp as shown in Fig. 2 was fabricated by incorporating the arc tube 1 configured as described above into the vacuum outer tube 3, and the characteristics when the lamp was lit horizontally with a power consumption of 150 W were measured. However, it was as follows. The lamp characteristics are represented by values after aging for 100 hours.
- Tube power 150 W Tube current: 1.82 A Tube voltage: 98.7 V Total luminous flux: 13, 500 1 m Average color rendering index: 87
- FIG. 7 shows the results of the lamp characteristics.
- the vertical axis is the luminous flux maintenance factor
- the horizontal axis is the lighting time.
- the discharge lamp of this example exhibited a luminous flux maintenance ratio of 80% or more even after lighting for 12, 000 hours.
- a stress buffer 40 made of a heat-resistant metal having a linear expansion coefficient close to that of the ceramic exists between the electricity introducing body and the ceramic thin tube 12. The thermal stress generated when the lamp is turned on and off is absorbed by the stress buffer 40, so that the sealing glass 30 does not crack and can withstand lighting for a long time.
- FIG. 8 shows an arc tube 1 of a discharge lamp according to a fifth embodiment of the present invention. It is sectional drawing which shows a structure. 8, the same parts as those in FIG. 5 are denoted by the same reference numerals, and their description will be omitted.
- the fifth embodiment is an example applied to a lamp with large power consumption.
- Both ends of the large tube 11 are tapered portions 14 narrowed through tapered portions 15, and the reduced diameter portions 14 and the thin tubes 12 are airtightly joined via the disc 13.
- a stress buffer 40 is provided in a part of the region between the electricity introducing body 24 and the thin tube 12, and the electricity introducing body 24, the stress buffer 40 and the thin tube 12 are sealed glass 30. It is fixed airtight.
- the stress buffer 40 and the electricity introducing body 24 are positioned by crimping the stress buffer 40 at a crimping position 60.
- the positioning of the electric induction body 23 or 24 and the stress buffer 40 is performed by changing the stress buffer 40 to the electric induction body 23 or 24. It is necessary to perform a process such as direct electric welding or attaching a positioning pin to the electric conductor 23 or 24.
- a cylindrical stress buffer 40 is provided so as to insert the electric introduction body 24 inside, the stress buffer 40 extends to the outside of the thin tube 12, and the stress buffer 40 is provided. Only a part of the inner side of the arc tube 1 is located between the electricity introducing body 24 and the thin tube 12 and is located at the hermetic sealing portion, and the inside of the arc tube 1 of the stress buffer 40 is The structure shown in FIG. 8 in which the portion located at the position shown in FIG. 8 is covered with the sealing glass 30 has an advantage that the stress buffering body 40 can be fixed only by mechanical crimping to the electricity introducing body 24.
- the inner diameter of the thick tube 11 is 16 mm
- the inner diameter of the thin tubes 12 at both ends is 2.0 mm
- the length between the electrodes is 25 mm.
- the diameter of the electrode core 21 is 1.0 mm
- the first coil 20 is formed by winding a tungsten wire having a diameter of 0.35 mm around the electrode core 21 for 4 to 5 turns, with a maximum diameter of 1.0 mm. 8 mm It is.
- the stress buffer 40 was a tube made of Nb—l% Zr alloy with an inner diameter of 0.6 mm, an outer diameter of 1.9 mm, and a length of 9.0 mm.
- an electric introducing body 24 is positioned and fixed by crimping the stress buffer 40 at a crimping position 60.
- the sealing glass 30 closes the gap between the electricity introducing body 24 and the stress buffer 40 and the gap between the stress buffer 40 and the thin tube 12 up to about 6 mm from the end of the thin tube 12.
- the stress buffer 40 is protected from corrosion by halogen because the central part of the arc tube 1 is covered with a sealing glass 30 having halogen resistance about 5 mm. Have been.
- mercury about 18 mg
- dysprosium iodide about 22 mg
- sodium iodide about 6 mg
- sodium iodide about 5 mg
- iodine Cesium chloride About 3 mg and about 8 kPa of argon gas as a starting gas are sealed.
- a discharge lamp as shown in Fig. 2 was fabricated by incorporating the arc tube 1 configured as described above in a vacuum outer tube 3, and the characteristics when the lamp was lit horizontally with a power consumption of 400 W were measured. However, it was as follows. The lamp characteristics are represented by values after aging for 100 hours.
- Tube power 400 W Tube current: 3.9 A Tube voltage: 13.3 V Total luminous flux: 37, 500 1 m Average color rendering index: 8 7
- the linear expansion coefficient of the stress buffer 40 is between the linear expansion coefficient of the electric introducing body and the linear expansion coefficient of the thin tube 12, or It is preferable that the coefficient of linear expansion is the same as that of the thin tube 12. The most preferable example is that the linear expansion coefficient increases in the order of the electric conductor, the sealing glass 30, the stress buffer 40, and the thin tube 12. This is an example.
- the stress buffer 40 By configuring the stress buffer 40 with a metal material having such a linear expansion coefficient, it becomes possible to effectively absorb the thermal stress. In some cases, thermal stress is absorbed most efficiently. Since the stress buffer 40 absorbs the thermal stress due to the difference in the coefficient of linear expansion as described above, the stress buffer 40 is directly fixed to the electric introduction body and is not integrated in the hermetically sealed portion. It is preferable that a predetermined interval is provided. The same applies to the case where the thin tube 12 and the stress buffer 40 have different coefficients of linear expansion. In particular, when there is a relationship of the coefficient of linear expansion as in the above example, a structure in which the sealing glass 30 is filled between the electric introducing body and the stress buffer 40 is preferable. .
- the stress buffer 40 may be provided at least in the hermetically sealed portion between the electric introducer and the thin tube 12, so that the thermal stress applied to the sealing glass 30 can be absorbed. It is sufficient that at least a part of the stress buffer 40 is covered with the sealing glass 30, but when the metal halide is sealed inside the arc tube 1, the halogen resistance is high. It is preferable that the sealing glass 30 covers the inner side of the arc tube 1 of the stress buffer 40. In this manner, a metal material having no halogen resistance can be used.
- the stress buffer 40 Although a tubular body was used as a material, the present invention is not limited to this.
- a heat-resistant metal plate may be bent into a tubular shape and may have a gap at the joint.
- two semi-cylindrical cross sections may be used in a state where there is a gap between two places. It is also possible to use a cylindrical one divided into three or more parts.
- the stress buffer 40 is present in at least a part of the region between the electricity introducing body and the thin tube 12, and the portion where the stress buffer 40 is not present is so small that the effect of absorbing the stress is not lost. It may be hot.
- FIG. 9 is a cross-sectional view showing a configuration of an arc tube 1 of a discharge lamp according to a sixth embodiment of the present invention.
- the same portions as those in FIGS. 6 and 8 are denoted by the same reference numerals, and description thereof will be omitted.
- a ceramic sleeve 50 is used as a fitting member provided between the electric guide and the thin tube 12.
- the electric introduction body (the first electric introduction body 24 and the second electric introduction body 27) to which the electrode pole core 21 is connected passes through the thin tube 12, and the ceramic sleeve 50 surrounds the thin tube 12. Is arranged.
- the sealing glass 30 is poured between the ceramic sleeve 50 and the electric induction body and between the ceramic sleeve 50 and the thin tube 12, and the electric conduction body and the ceramic are sealed by the sealing glass 30.
- the lock sleeve 50 and the thin tube 12 are hermetically fixed.
- the ceramic sleeve 50 is positioned by the second coil 22.
- the present inventors have fine tube 1 2 constituted by alumina (A l 2 0 3), Serra Mi Kkusuribu 5 0 respectively alumina, titania (T i O), spinel (Mg A l 2 0 4) , beryllia (B e 0), the five discharge lamp constituted by Lee Tsu preparative rear (Y 2 03)
- alumina A l 2 0 3
- Serra Mi Kkusuribu 5 0 respectively alumina
- titania Ti O
- spinel Mg A l 2 0 4
- beryllia B e 0
- the five discharge lamp constituted by Lee Tsu preparative rear
- the first electricity introducing body 24 is preferably one having heat resistance and halogen resistance, and preferably having a coefficient of linear expansion not significantly different from that of the ceramic sleeve 50. This is because the joint between the first electricity introduction body 24 and the second electricity introduction body 27 is covered with the sealing glass 30 ⁇ between the ceramic sleeve 50 and the first electricity introduction body 24. This is to prevent the sealing glass 30 filled in the second electrode from being damaged, and to protect the second electricity introducing body 27 from the halogen substance.
- a material molybdenum, an alloy of molybdenum or a cermet can be used.
- the linear expansion coefficient of the ceramic sleeve 50 is similar to that of the ceramic constituting the capillary 12, which has heat resistance and has a linear expansion coefficient that is close to that of the ceramic. It is preferable that they are well approximated.
- Such materials include niobium, tantalum, alloys of niobium or alloys of tantalum, and the linear expansion coefficients of these materials are particularly close to those of translucent alumina.
- the arc tube 1 and the canceller Mi Kkusuri part 5 0 translucent alumina when the second electrical transductant 2 7 and niobium, the coefficient of linear expansion of the translucent alumina is 8.4 1 0 6 / in (In the range of 300 to 800), the linear expansion coefficient of niobium is 7.5 X 10 — 6 .
- the function of the second coil 22 (the heat at the electrode tip portion is dissipated backwards) is provided by using the long ceramic sleeve 50 without providing the second coil 22. May be substituted for the ceramic sleeve 50.
- the ceramic is not preferable because the thermal conductivity is smaller than that of the metal.
- the thermal conductivity of alumina (0.30 Joules / cmZs / ⁇ C) becomes the thermal conductivity of molybdenum (1 Since the function of the second coil 22 is substituted for the ceramic sleeve 50, the heat generated at the electrode tip is transmitted to the rear. Peg. Therefore, a low-temperature portion is formed in the gap behind the electrode sandwiched between the thin tube 12 and the ceramic sleeve 50, and the temperature of the mercury and metal halide in the inclusions accumulated in the low-temperature portion is sufficiently increased. Absent.
- the temperature of the filling does not rise, the vapor pressure does not rise, and in particular, sufficient light emission from metal halide cannot be obtained, and a discharge lamp with excellent efficiency and color rendering cannot be realized. Also, for similar reasons, After the lamp is turned on, the time required for the enclosure to evaporate and exhibit a predetermined brightness becomes longer. In addition, since the heat from the electrode core 21 is not easily transmitted to the thin tube 12, the temperature of the electrode core 21 increases. When the temperature of the electrode core 21 becomes high, the heat is transmitted to the sealing portion via the metal electricity introducing member. As a result, the lamp life is shortened when the temperature of the sealing portion becomes higher than necessary.
- the length of insertion of the ceramic sleeve 50 into the thin tube 12 is not unnecessarily long, and the second coil 22 is wound around the electrode core 21 in the thin tube 12. .
- the inner diameter of the thick tube 11 is 16 mm
- the inner diameter of the thin tubes 12 at both ends is 2.0 mm
- the length between the electrodes is 27 mm.
- the electrode core 21 has a diameter of 0.9 mm in tungsten
- the first coil 20 has a tungsten wire of 0.35 mm in diameter wound around the electrode core 21 for 4 to 5 turns.
- the large diameter is 1.6 mm.
- the second coil 22 is formed by winding a molybdenum wire having a diameter of 0.45 mm for 26 to 28 turns.
- the first electricity guide 24 is made of molybdenum and has a diameter of 0.5 mm and a length of 3 mm, and is butt-welded to the electrode pole 21 at a welding position 25.
- the second electric introduction body 27 is made of niobium having a diameter of 0.7 mm and is butt-welded to the first electric introduction body 24 at a welding position 26.
- the ceramic sleeve 50 is made of alumina and has an inner diameter of 75 mm, an outer diameter of 1.9 mm, and a length of 6 mm.
- the second electricity introducing body 27 is fixed by a sealing glass 30 at a position inserted into the thin tube 12 by about 3 mm.
- the sealing glass 30 is The gap between the electric introducer and the ceramic sleeve 50 and the gap between the ceramic sleeve 50 and the thin tube 12 are filled up to about 6 mm from the end of the thin tube 12. That is, since the joint between the first electric conductor 24 and the second electric conductor 27 constituting the electric conductor is covered with the sealing glass 30, the second electric conductor 27 is halogen. Protected from corrosion by
- the layer thickness of the sealing glass 30 is the gap between the thin tube 12 and the ceramic mix 50 and the gap between the ceramic sleeve 50 and the electricity introducing body. 2 mm or less.
- the thickness of the sealing glass 30 is 0.2 mm or less, the sealing structure has excellent heat resistance and thermal shock resistance.
- Mercury about 15 mg
- dysprosium iodide about 22 mg
- thallium iodide about 8 mg
- sodium iodide about 3 mg
- cesium iodide About 2 mg and about 8 kPa argon gas as the starting gas are sealed.
- a discharge lamp as shown in Fig. 2 was fabricated by incorporating the arc tube 1 configured as described above into the vacuum outer tube 3, and the characteristics when the lamp was lit in a horizontal lighting posture with a power of 400 W were measured. The result was as follows. Characteristics are expressed as values after aging for 100 hours.
- Tube power 400 W Tube current: 3.85 A Tube voltage: 1 18.7 V Total luminous flux: 39, 0 0 1 m Average color rendering index: 8 7
- FIG. 10 is a sectional view showing a configuration of a light emitting tube 1 of a discharge lamp according to a seventh embodiment of the present invention. 10, the same parts as those in FIG. 9 are denoted by the same reference numerals, and their description is omitted.
- the arc tube 1 made of a translucent alumina tube is composed of a thick tube 11 at the center and thin tubes 12 attached to both ends thereof. Both ends of the thick pipe 11 are reduced diameter parts 14 narrowed down through a taper part 15 having a curved surface with a radius of curvature of 2 mm or more.
- the reduced diameter portion 14 and the thin tube 12 are hermetically joined via an alumina disk 13, and the reduced diameter portion 14 is connected to the portion where the disk 13 is mounted and the taper portion 15. And a straight portion between them.
- the inner diameter of the thick tube 11 is 16 mm
- the inner diameter of the reduced diameter portion 14 is 1 Omm
- the radius of curvature R of the taper portion 15 is 5 mm
- the inner diameter of the thin tube 12 is 2 mm and 3 mm.
- the material is translucent alumina.
- the electrode pole core 21 has a diameter of 0.9 mm and is made of tungsten.
- a first coil 20 (tungsten) and a second coil 22 (molybdenum) are wound around the electrode core 21.
- the first electricity introduction body 24 is made of molybdenum, has a diameter of 0.5 mm and a length of 3 mm, and is butt-welded to the electrode pole core 21 at a welding position 25.
- the second electricity introducing body 27 is made of niobium having a diameter of 0.7 mm, and is butt-welded with the first electricity introducing body 24 at a welding position 26.
- the ceramic sleeve 50 was made of alumina having the same material as that of the arc tube 1 and had a length of 6 mm, an inner diameter of 0.75 mm, and a different outer diameter.
- the second electricity introducing body 27 is fixed by the sealing glass 30 at a position where it is inserted into the thin tube 12 by about 3 mm.
- the sealing glass 30 fills the gap between the electric introducer and the ceramic sleeve 50 and the gap between the ceramic sleeve 50 and the thin tube 12 up to about 6 mm from the end of the thin tube 12.
- Table 1 below shows the cracking rate of the prototype discharge lamp when the inner diameter of the thin tube 12 and the outer diameter of the ceramic sleeve 50 were changed.
- the lower limit of the difference is preferably 0.02 mm, which is the minimum dimension into which the sealing glass 30 flows.
- FIG. 11 is a sectional view showing a configuration of an arc tube 1 of a discharge lamp according to an eighth embodiment of the present invention.
- the same parts as those in FIG. 9 are denoted by the same reference numerals, and their description is omitted.
- the first electrode 24 butt-welded to the electrode pole 21 at the weld 25, and the butt-weld 26 to the first electrode 24 at the weld 26
- the second electricity introducing body 27 is hermetically fixed by the sealing glass 30.
- the distance between the insertion length (C) of the second electricity introducing body 27 into the thin tube 12 and the length (D) of the sealing glass 30 flowing into the thin tube 12 is D —
- the relationship C ⁇ l.0 mm holds. If this relationship is satisfied, the lamp life can be extended. If this relationship does not hold, the halide, which is a sealed substance, enters along the boundary between the sealing glass 30 and the first electricity introducing body 24, and the second electricity introducing body 27 chemically reacts with the halogen. Corrosion occurs. As a result, finally, conduction is lost at the weld 26 between the first electricity introduction body 24 and the second electricity introduction body 27, and the lamp cannot be turned on.
- the lighting time is set to 6,000 hours. It was confirmed that the luminous flux maintenance rate of 70% or more was maintained even after extension. Therefore, the lighting time
- this threshold (D-C) Must be at least 1.0 mm in length.
- the sealing glass 30 flows over the tip of the first electricity introducing body 24, the sealing glass flows into the space surrounded by the inner wall of the thin tube 12 and the first electricity introducing body 24. As the volume of 30 increases, Since the glass 30 comes into contact with the glass 30, cracks are generated in the sealing glass 30 at this portion. Subsequent to this, cracks also occur in the thin tube 12, causing an airtight leak in the arc tube 1, and the discharge lamp stops lighting.
- FIG. 12 is a sectional view showing the configuration of the arc tube 1 of the discharge lamp according to the ninth embodiment of the present invention.
- the same parts as those in FIG. 9 are denoted by the same reference numerals, and description thereof will be omitted.
- the first electrical conductor 24 butt-welded to the electrode core 21 at the weld 25 and the butt-weld to the first electrical conductor 24 at the weld 26
- the second electricity introducing body 27 and the ceramic sleeve 50 provided between the first and second electricity introducing bodies 24 and 27 and the thin tube 12 are hermetically sealed by the sealing glass 30. Fixed.
- the insertion length C of the second electric introduction body 27 into the thin tube 12 and the insertion length C of the sealing glass 30 into the thin tube 12 are also described.
- the relationship of D—C ⁇ l.O mm holds between the inflow length D and the inflow length D.
- the thick tube 11 is made of alumina and has an inner diameter of 16 mm.
- the thin tube 12 is made of alumina and has an inner diameter of 2.0 mm and an electrode length of 23 mm.
- the electrode core 21 has a diameter of 0.9 mm, and the first coil has a 0.35 mm diameter stainless steel wire wound around the electrode core 21 for 4 to 5 turns, with a maximum diameter of 1. 6 mm.
- the first electroconductive body 24 is made of molybdenum and has a diameter of 0.5 mm, a length of 3 mm and is butt-welded to the electrode core 21 at a welding position 25 ⁇
- the second electroconductive body 27 has a diameter of It is made of 0.7 mm niobium and is butt-welded with the first electric conductor 24 at welding position 26.
- Sera Mitsu The sleeve 50 is made of alumina and has an inner diameter of 0.75 mm, an outer diameter of 1.9 mm, and a length of 6 mm.
- the second electricity introducing body 27 is fixed by a sealing glass 30 at a position inserted into the thin tube 12 by about 3 mm.
- the sealing glass 30 fills the gap between the electric introducer and the ceramic sleeve 50 and the gap between the ceramic sleeve 50 and the thin tube 12 up to about 5 mm from the end of the thin tube 12. I have.
- a discharge lamp as shown in Fig. 2 was fabricated by incorporating the arc tube 1 configured as described above in a vacuum outer tube 3, and the characteristics when the lamp was lit horizontally with a lighting posture of 400 W power were measured. The result was as follows.
- Tube power 400 W Tube current: 4.06 A Tube voltage: 110. IV Total luminous flux: 39, 400 m Average color rendering index: 8 6
- FIG. 13 shows the structure of a discharge lamp according to the tenth embodiment of the present invention.
- FIG. 13 the same parts as those in FIGS. 6 and 12 are denoted by the same reference numerals and description thereof will be omitted.
- the first electric conductor 24 butt-welded to the electrode core 21 at the weld 25, and the butt-weld to the first electrode 24 at the weld 26.
- the second electric introduction body 27 and the heat-resistant metal stress buffer 40 made of, for example, niobium provided between the first and second electric introduction bodies 24 and 27 and the thin tube 12 are sealed. It is airtightly fixed by the glass 30.
- the stress buffer 40 is a tubular one inserted between the first and second electric conductors 24, 27 and the thin tube 12. As in the fourth embodiment, the stress buffer 40 has a linear expansion coefficient between the four different materials of the first and second electric conductors 24 and 27, the sealing glass 30 and the thin tube 12. Absorbs thermal stress caused by the difference.
- the insertion length C of the second electric introduction body 27 into the thin tube 12 and the insertion length C of the sealing glass 30 into the thin tube 12 are also described.
- the relationship of D—C ⁇ l.O mm holds between the inflow length D and the inflow length D.
- the inner diameter of the thick tube 11 is 13 mm
- the inner diameter of the thin tube 12 is 1.5 mm
- the distance between the electrodes is 18 mm.
- the electrode core 21 has a diameter of 0.7 mm
- the first coil has a 0.30 mm diameter tungsten wire wound around the electrode core 21 for 4 to 5 turns, with a maximum diameter of 1.30. mm.
- an Nb—l% Zr alloy with an inner diameter of 0.75 mm, an outer diameter of 40 mm, and a length of 3.0 mm was used.
- the second electricity introducing body 27 is made of a 1 ⁇ 3-1% alloy having a diameter of 0.7 mm and a length of about 210111111.
- the sealing glass 3 is inserted into the narrow tube 12 at a position of about 3 mm. Fixed by 0.
- the sealing glass 30 has an optimal composition ratio A 1 203 -S i 0 2 A mixture of D y 2 O 3 -based metal oxides was used.
- the sealing glass 30 fills the gap between the electricity introducing body and the stress buffer 40 and the gap between the stress buffer 40 and the capillary 12 up to about 5 mm from the end of the thin tube 12. ing.
- the stress buffer 40 is entirely covered with a sealing glass 30 having halogen resistance, the stress buffer 40 is protected from corrosion from halogen. Protected.
- mercury about 15 mg
- dysprosium iodide about 20 mg
- thallium iodide about 6 mg
- sodium iodide about 4 mg mg
- cesium iodide About 4 mg and about 8 kPa of argon gas as a starting gas are sealed.
- a discharge lamp as shown in Fig. 2 was fabricated by incorporating the arc tube 1 configured as described above into the vacuum outer tube 3, and the characteristics when the lamp was lit horizontally with a lighting power of 250 W and power consumption was measured. However, it was as follows. The lamp characteristics are expressed as values after 100-hour aging.
- Tube power 250 W Tube current: 2.41 A Tube voltage: 1 23.9 V Total luminous flux: 22, 501 m Average color rendering index: 86
- FIG. 14 is a sectional view showing the structure of the arc tube 1 of the discharge lamp according to the eleventh embodiment of the present invention.
- Fig. 14 same as Fig. 12 Portions are given the same numbers and their description is omitted.
- the diameter of the first electric conductor 24 made of molybdenum or a molybdenum alloy having halogen resistance is 0.3 mm or more and 0.7 mm or less.
- the diameter of the first electricity introducing body 24 is 0.7 mm or less.
- the diameter is larger than this, the thickness of the ceramic sleeve 50, the inner diameter of the thin tube 12, the second electricity Even if the diameter of the body 27 is adjusted, it prevents the thin tube 12 from cracking at the time of sealing, and prevents the early sealing leak from the sealing glass 30 by the heat cycle by the blinking of the lamp. It is difficult to prevent cracking of the thin tube 12 during sealing easily by adjusting the other components as appropriate by setting it to 0.7 mm or less. This is because it is possible to prevent the occurrence of airtight leakage from the glass 30.
- the size of each part is determined so that the layer thickness of the sealing glass 30 formed with the introduction body is 0.2 mm or less, the occurrence of cracks in the thin tube 12 at the time of sealing is prevented, It is possible to prevent an airtight leak from the sealing glass 30 from occurring early in the heat cycle caused by the blinking of the lamp.
- the diameter of the first electricity introducing body 24 is preferably small, but if it is too small, it cannot withstand the mechanical shock applied during the lamp manufacturing process. Also, if it is too thin, after the lamp is manufactured, the first electricity introduction body 24 generates heat due to the current during lamp operation, and a local temperature non-uniform portion is generated in the sealing portion, and the sealing glass 30 is cracked. A crack occurs. Therefore, the diameter of the first electricity introducing body 24 is preferably set to 0.3 mm or more.
- Cermet can also be used as a material of the first electricity introduction body 24.
- the cermet conditions that can be used are three conditions: conductivity, halogen resistance, and a coefficient of linear expansion that is close to that of alumina (capillary tube 12).
- As cermets satisfying these conditions specifically, chromium-alumina, molybdenum- Alumina, tungsten-alumina, etc. can be used.
- the inner diameter of the thick tube 11 is 16 mm
- the inner diameter of the thin tube 12 is 2. O mm
- the distance between the electrodes is 27 mm.
- the electrode pole core 21 is made of tungsten and has a diameter of 0.9 mm.
- the first coil 20 is a tungsten wire having a diameter of 0.35 mm wound around the electrode pole core 21 for 4 to 5 turns. , Its maximum diameter is 1.6 mm.
- the second coil 22 is formed by winding a molybdenum wire having a diameter of 0.45 mm around 26 to 28 minutes.
- the first electricity introduction body 24 is molybdenum having a diameter of 0.7 mm and a length of 3 mm, and is butt-welded to the electrode pole 21 at the welding position 25.
- the second electricity introducing body 27 is made of niobium having a diameter of 0.7 mm and is butt-welded with the first electricity introducing body 24 at a welding position 26.
- the ceramic leave 50 is made of the same translucent alumina as the arc tube 1 and has an inner diameter of 0.75 mm, an outer diameter of 1.9 mm, and a length of 6 mm.
- the second electricity introducing body 27 is fixed by sealing glass 30 at a position where it is inserted into the thin tube 12 by about 3 mm.
- the sealing glass 30 was filled with a gap between the electricity introducing body and the ceramic sleeve 50 and about 5 mm from the end of the thin tube 12 and the ceramic sleeve 5. 0 and the narrow tube 12. That is, since the joint between the first electricity introduction body 24 and the second electricity introduction body 27 is covered with the sealing glass 30, Inductor 27 is protected from corrosion by halogens.
- the layer thickness of the sealing glass 30 is determined by the gap between the thin tube 12 and the ceramic mix 50 and the gap between the ceramic sleeve 50 and the electricity introducing body. There are gaps, but each is less than 0.2 mm. When the layer thickness of the sealing glass 30 is 0.2 mm or less, the sealing structure has excellent heat resistance and thermal shock resistance.
- Mercury about 15 mg
- dysprosium iodide about 22 mg
- thallium iodide about 8 mg
- sodium iodide about 3 mg
- cesium iodide About 2 mg and about 10 KPa of argon gas as the starting gas are sealed.
- a discharge lamp as shown in Fig. 2 was fabricated by incorporating the arc tube 1 configured as described above into the vacuum outer tube 3, and the lighting characteristics were measured when the lamp was lit horizontally with a lamp power of 400 W.
- the result was as follows. The characteristics are represented by values after aging for 100 hours.
- Tube power 400 W
- Tube current 3.87
- a Tube voltage 116 V
- Total luminous flux 37, 801 m
- the discharge lamp was subjected to a life test in which the lamp was repeatedly turned on and off for 5.5 hours with a power of 400 W and turned off for 0.5 hours. No abnormalities occurred.
- FIG. 15 is a sectional view showing the configuration of the arc tube 1 of the discharge lamp according to the 12th embodiment of the present invention.
- the same parts as those in FIG. 5 are denoted by the same reference numerals, and the description thereof will be omitted.
- a laminate of a ceramic sleeve and a heat-resistant metal layer is used as the fitting member. That is, in the outer end of the thin tube 12, the electric conductor 24, which is butt-welded to the electrode pole core 21 at the welding portion 25, is located between the electric conductor 24 and the tubing 12.
- the laminated body of the provided ceramic sleeve 28 and the heat-resistant metal layer 29 forms sealing glass 30. It is more airtightly fixed.
- the ceramic sleeve 28 is made of the same material as the ceramic constituting the arc tube 1 or a material having a similar linear expansion coefficient. Therefore, the sealing portion is further strengthened.
- the approximation of the linear expansion coefficient means that the difference between the linear expansion coefficients of the ceramics constituting the light emitting tube 1 is within 25%, and the closer the difference is, the better.
- the heat-resistant metal layer 29 is made of niobium, an alloy of niobium, tantalum, or an alloy of tantalum. Since these metals have a coefficient of linear expansion that closely approximates that of ceramics and are easily deformable and soft, they are suitable as stress buffers for absorbing thermal stress generated between dissimilar materials. The fitting is further strengthened.
- the inner diameter of the thin tube 12 is large because the electricity introducing body 24 and the thin tube 12 are hermetically fixed via the ceramic sleeve 28 and the heat-resistant metal layer 29. Therefore, even when applied to a discharge lamp that consumes a large amount of power, the thickness of the sealing glass 30 formed between the electricity introducing body 24 and the thin tube 12 does not increase. Cracking of the thin tube 12 at the time of sealing can be prevented, and early airtight leakage from the sealing glass 30 due to the heat cycle caused by the blinking of the lamp can be prevented.
- the inner diameter of the thick tube 11 is 18 mm
- the inner diameter of the thin tube 12 is 3.5 mm
- the distance between the electrodes is 30 mm.
- the electrode core 21 has a diameter of 1.2 mm
- the first coil 20 has a 1.0 mm diameter tungsten wire wound around the electrode core 21 for 4 to 5 turns, and the maximum diameter is 3.2. mm.
- the electric conductor 24 is made of molybdenum and has a diameter of 0.7 mm and a length of 2 Omm, and is butt-welded with the electrode core 21 at a weld 25.
- the ceramic sleeve 28 is made of alumina and has an inner diameter of 1.4 mm. It has an outer diameter of 3.4 mm and a length of 3 mm.
- the heat-resistant metal layer 29 is made of niobium and has an inner diameter of 0.75 mm, an outer diameter of 1.35 mm, and a length of 3 mm.
- the ceramic sleeve 28 and the heat-resistant metal layer 29 are pinned at a position inserted about 3 mm from the end face of the pipe 12.
- the electricity introducing body 24, the ceramic sleeve 28 and the heat-resistant metal layer 29 are hermetically fixed by sealing glass 30, respectively.
- Sealing glass 3 0, A 1 2 03 having an optimal composition ratio - S i 02 - with a mixture of D y 2 03-based metal oxide.
- the sealing glass 30 is 4 to 6 mm from the end face of the capillary 12, the gap between the electricity guide 24 and the heat-resistant metal layer 29, the heat-resistant metal layer 29 and the ceramic sleeve 28. And the gap between the ceramic sleeve 28 and the thin tube 12 is filled.
- the heat-resistant metal such as niobium constituting the heat-resistant metal layer 29 is corroded by halogen at a high temperature, but in this example, the heat-resistant metal layer 29 is completely covered with the halogen-resistant sealing glass 30. So they are protected from halogen corrosion.
- the thickness of the sealing glass 30 is determined by the gap between the electric conductor 24 and the heat-resistant metal layer 29, the gap between the heat-resistant metal layer 29 and the ceramic sleeve 28, and the ceramic sleeve.
- the gap between 28 and the thin tube 12 is 0.2 mm or less in each case.
- the sealing structure has excellent heat resistance and thermal shock resistance.
- mercury about 21 mg
- dysprosium iodide about 36 mg
- thallium iodide about 6 mg
- cesium iodide about 5 mg
- starting gas About 8 kPa argon gas is sealed.
- the discharge lamp as shown in FIG. 2 was fabricated by incorporating the arc tube 1 thus constructed in the outer tube 3 of a vacuum, The lighting characteristics were measured when the lamp was lit horizontally with power, and the results were as follows.
- Tube power 700 W Tube current: 6.8 A Tube voltage: 13.5 V Total luminous flux: 72, 101 m Average color rendering index: 86
- FIG. 16 is a sectional view showing a sealing structure of the arc tube 1 of the discharge lamp according to the thirteenth embodiment of the present invention.
- the same parts as those in FIG. 15 are denoted by the same reference numerals, and their description is omitted.
- a laminated body of a ceramic sleeve and a heat-resistant metal layer is used as the fitting member. It is hermetically sealed with a sealing glass 30 via a thin tube 12 made of a mix, a two-layer heat-resistant metal layer 29 and a single-layer ceramic sleeve 28.
- FIG. 17 is a sectional view showing a sealing structure of the arc tube 1 of the discharge lamp according to the fourteenth embodiment of the present invention.
- the same parts as those in FIGS. 6 and 15 are denoted by the same reference numerals, and their description is omitted.
- a laminated body of a ceramic sleeve and a heat-resistant metal layer is used as the fitting member (that is, the first electricity introducing body 24).
- the second electric introducing body 27 is hermetically sealed with sealing glass 30 via a thin tube 12 made of ceramic, a single-layer ceramic sleeve 28 and a single-layer heat-resistant metal layer 29. Has been stopped.
- the ceramic sleeve 28 and the heat-resistant metal layer 2 are combined and overlapped many times, theoretically, the inner diameter of the thin tube 12 is increased. Can be as large as possible.
- a heat-resistant metal (the first to fifth embodiments) and a ceramic (the sixth to eleventh embodiments) are used.
- the cermet can also be used for the fitting member. is there. Specifically, chromium-alumina, molybdenum-alumina, tungsten-alumina and the like can be used.
- an appropriate coefficient of linear expansion can be obtained by adjusting the mixing ratio of the metal and the metal oxide. For example, chromium - For alumina, 7 7 C r - 2 3 A 1 2 0 3 of linear expansion coefficient 8 9 X 1 0 -. Next 6, can be used as a fitting ⁇ material.
- the fitting member is provided in a partial area between the electric introduction body and the thin tube, even if the diameter of the electric introduction body and the inner diameter of the thin tube are increased. Since the layer thickness of the sealing glass can be reduced, it is possible to provide a discharge lamp with excellent life and large power consumption.
- the stress buffering member made of a heat-resistant metal is provided between the electricity introducing body and the thin tube, the thermal stress based on the difference in linear expansion coefficient between the electricity introducing body and the sealing glass is reduced. Since the cushioning member absorbs, the reliability of the sealing portion is increased, and a discharge lamp having excellent life characteristics can be provided. According to the present invention, since the difference between the inner diameter of the thin tube and the outer diameter of the ceramic rib is in the range of 0.02 to 0.6 mm, no crack occurs during the sealing process. Establish reliable sealing technology.
- the inner diameter of the thin tube is 1.3 mm or more, a large electrode can be used, and a discharge lamp with large power consumption can be put to practical use.
- the difference between the length of the sealing glass flowing into the thin tube and the length of insertion of the second electrical conductor into the thin tube is larger than 1.0 mm, so that the durability of the glass sealing portion is excellent.
- a discharge lamp having excellent life characteristics and large power consumption can be provided.
- the diameter of the first electricity introducing body is set to 0.3 mm or more and 0.7 mm or less, the reliability of the sealing portion can be ensured, and the power consumption with excellent life and large discharge can be achieved. Lamps can be provided.
- the thickness of the sealing glass is reduced by providing a single layer or a plurality of layers of ceramic ribs and a heat-resistant metal layer between the electricity introducing body and the thin tube.
- the present invention can be applied to a lamp with large power consumption using a ceramic arc tube having a thin tube with a large inner diameter, and can provide a discharge lamp with excellent life characteristics and large power consumption.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01914163A EP1193734A4 (en) | 2000-03-08 | 2001-03-08 | ELECTRIC DISCHARGE LAMP |
US09/959,808 US6882109B2 (en) | 2000-03-08 | 2001-03-08 | Electric discharge lamp |
Applications Claiming Priority (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-63527 | 2000-03-08 | ||
JP2000063527 | 2000-03-08 | ||
JP2000-63539 | 2000-03-08 | ||
JP2000063539 | 2000-03-08 | ||
JP2000160682 | 2000-05-30 | ||
JP2000-160682 | 2000-05-30 | ||
JP2000-163113 | 2000-05-31 | ||
JP2000163113 | 2000-05-31 | ||
JP2000-163674 | 2000-05-31 | ||
JP2000163674 | 2000-05-31 | ||
JP2000-164521 | 2000-06-01 | ||
JP2000164521 | 2000-06-01 | ||
JP2000166007 | 2000-06-02 | ||
JP2000-166007 | 2000-06-02 | ||
JP2000-186157 | 2000-06-21 | ||
JP2000186157 | 2000-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001067488A1 true WO2001067488A1 (fr) | 2001-09-13 |
Family
ID=27573690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/001837 WO2001067488A1 (fr) | 2000-03-08 | 2001-03-08 | Lampe a decharge electrique |
Country Status (4)
Country | Link |
---|---|
US (1) | US6882109B2 (ja) |
EP (1) | EP1193734A4 (ja) |
JP (1) | JP4798311B2 (ja) |
WO (1) | WO2001067488A1 (ja) |
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JP2002367564A (ja) * | 2001-06-05 | 2002-12-20 | Iwasaki Electric Co Ltd | 金属蒸気放電ランプの発光管とその電極システム |
JP2008108690A (ja) * | 2006-09-29 | 2008-05-08 | Toto Ltd | セラミック発光管用封止ガラス及びそれを用いたセラミック放電ランプ |
JP2009500793A (ja) * | 2005-06-30 | 2009-01-08 | ゼネラル・エレクトリック・カンパニイ | セラミック電球とその製造方法 |
JP2009064787A (ja) * | 2001-09-26 | 2009-03-26 | Osram Sylvania Inc | 金属ハロゲンランプのクォーツ発光管及びその作製方法 |
WO2010001530A1 (ja) * | 2008-07-03 | 2010-01-07 | Kato Yasuhiro | Hidランプ |
JP2012510557A (ja) * | 2008-12-03 | 2012-05-10 | オスラム・シルバニア・インコーポレイテッド | 窒化アルミニウム及び酸窒化アルミニウムセラミックを封止するための封止用組成物 |
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FR2834122B1 (fr) * | 2001-12-20 | 2004-04-02 | Thales Sa | Procede de fabrication d'electrodes et tube electronique a vide utilisant ce procede |
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CN104183464A (zh) * | 2013-05-28 | 2014-12-03 | 海洋王照明科技股份有限公司 | 陶瓷金卤灯电极及陶瓷金卤灯 |
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- 2001-03-08 WO PCT/JP2001/001837 patent/WO2001067488A1/ja active Application Filing
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002367564A (ja) * | 2001-06-05 | 2002-12-20 | Iwasaki Electric Co Ltd | 金属蒸気放電ランプの発光管とその電極システム |
JP2009064787A (ja) * | 2001-09-26 | 2009-03-26 | Osram Sylvania Inc | 金属ハロゲンランプのクォーツ発光管及びその作製方法 |
JP2009500793A (ja) * | 2005-06-30 | 2009-01-08 | ゼネラル・エレクトリック・カンパニイ | セラミック電球とその製造方法 |
KR101263704B1 (ko) * | 2005-06-30 | 2013-05-13 | 제너럴 일렉트릭 캄파니 | 세라믹 램프 및 그 제조 방법 |
JP2008108690A (ja) * | 2006-09-29 | 2008-05-08 | Toto Ltd | セラミック発光管用封止ガラス及びそれを用いたセラミック放電ランプ |
WO2010001530A1 (ja) * | 2008-07-03 | 2010-01-07 | Kato Yasuhiro | Hidランプ |
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Also Published As
Publication number | Publication date |
---|---|
JP4798311B2 (ja) | 2011-10-19 |
US20020185974A1 (en) | 2002-12-12 |
EP1193734A4 (en) | 2006-06-28 |
JP2011096674A (ja) | 2011-05-12 |
US6882109B2 (en) | 2005-04-19 |
EP1193734A1 (en) | 2002-04-03 |
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