CN1303121A - Single end ceramic arc discharge lamp and its manufacturing method - Google Patents
Single end ceramic arc discharge lamp and its manufacturing method Download PDFInfo
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- CN1303121A CN1303121A CN 00136446 CN00136446A CN1303121A CN 1303121 A CN1303121 A CN 1303121A CN 00136446 CN00136446 CN 00136446 CN 00136446 A CN00136446 A CN 00136446A CN 1303121 A CN1303121 A CN 1303121A
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- discharge lamp
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
- H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
A ceramic discharge lamp (20) includes first and second electrodes (24, 26) that are disposed in non-axial relation. In a preferred arrangement, the electrodes extend inwardly from one end of the lamp to define a single ended ceramic discharge lamp. The electrodes are disposed in parallel to provide for precise control of the arc gap in one exemplary embodiment while the electrodes (134, 138) are angled in non-parallel relation in another preferred embodiment to limit the potential for arcing outside of the chamber. The legs (62, 64) are integrally formed in one body component (60) and an integral lens (104) is provided in the other body component (100) to increase the lumens distribution since there is no leg to interfere with radiation from the chamber.
Description
The present invention relates generally to lighting field, relates in particular to a ceramic arc discharge lamp.
The discharge lamp utilization is passed electric arc between two electrodes and is made such as the packing material ionization of metal halide and mercury mixture and produce illumination.Electrode and packing material are sealed in the translucent or transparent discharge cavity, and discharge cavity keep-ups pressure to the packing material that is energized and makes the light of emission pass it.Packing material also is known as " batching ", and it launches required spectral power distribution according to the excitation of electric arc.For example, the spectrum energy of halide generation distributes can provide the selection of wide region for for example optical characteristics such as colour temperature, color rendering and luminous efficiency.
In order to improve colour temperature, color rendering and luminous efficiency, reduce the reaction with packing material simultaneously significantly, present ceramic discharge lamp chamber can be under higher temperature, promptly working more than 950 ℃.In general, the ceramic discharge chamber is made of many parts that utilize ceramic powder extruding or mold pressing to make.The sequence number of the common U. S. application that is all pending trial that occupies, application on April 28th, 1 is 09/067, the sequence number of 816 applications and on February 16th, 1999 application is that 09/250,634 application discloses a kind of minimized conventional ceramic discharge cavity of connector quantity that makes formation ceramic discharge chamber.For example, practitioner has formerly used five parts that comprise centered cylinder, and the two ends of centered cylinder are basically by first and second end plugs sealing that has first and second legs therein.Only use two parts to constitute the ceramic discharge chamber in the application of reference.
All ceramic metal helide lamps available on the market have a common feature at least.That is, each ceramic metal helide lamp all has a discharge tube geometry, wherein receives the ceramic leg of lead, and the vacuum seal of ceramic-metal and electrode all are positioned on the opposite ends of this discharge body.The both-end ceramic discharge tubular construction of this standard is shown in Fig. 1.But the geometry of this structure can not satisfy the requirement of miniature lamp structure.Therefore, it is impossible reducing the total length of lamp or the length of luminescence center and the compactedness of raising lamp design.
The length that reduces arc-discharge tube in the standard both-end discharge tube structure as shown in Figure 1 still can not satisfy all needs in the industrial production.The length that reduces discharge tube is subjected to being positioned at the restriction of the maximum temperature that the ceramet sealing at the place, end of ceramic leg can bear.Because sealed glass tube will guarantee gas vacuum degree, the designer must avoid making seal exposed to give may bring the rising of adverse effect or too high temperature to sealed glass tube.
As being all as described in the co-pending application of reference, number of components and number of connection in the restriction electric arc tube can produce required efficient and reduce cost of manufacture.Therefore, when in flicker free work, obtaining control preferably, more reliable startup, more stable operation and lamp efficient that increases and color effect based on arc gap length, thus delete making step and parts and improve heat conduction and thermal-radiating loss to obtain higher lamp efficient etc. all are desirable characteristics.
A kind of ceramic discharge lamp comprises a ceramic package, and this shell has the cavity that is suitable for admitting a filler.First and second electrodes with certain space relation be arranged in the cavity, with produce with across the corresponding electric arc of potential difference that is applied on the electrode.Electrode is provided with non axial each other relation.
In exemplary embodiment of the present invention, the electrode of ceramic discharge lamp limits a single-ended electric arc tube, promptly, electrode stretches in the described cavity from the same end of electric arc tube.
Another preferred exemplary embodiment of the present invention provides a cheese end, also integral type lens are adorned in choosing therein.
Another exemplary embodiment makes the electrode angle that tilts mutually, so that be arranged on first end in the described cavity than being arranged on the second outer end of cavity more closely apart.
Fig. 1 represents to have the lamp device in the ceramic discharge chamber of prior art.
Fig. 2-the 13rd, the zoomed-in view in various according to an exemplary embodiment of the present invention ceramic arc discharges chamber.
Fig. 1 represents the ceramic discharge lamp 20 of prior art, and it comprises a both-end discharge cavity 22, first and second electrodes 24,26 is housed in the discharge cavity 22 and is sealed in packing material in the discharge cavity.Electrode 24,26 is connected to conductor 28,30, and conductor 28,30 applies a potential difference in known mode in the prior art across electrode.At work, the electrode generation makes the electric arc of packing material ionization to produce a plasma in discharge cavity.For a ceramic metal helide lamp, this packing material generally comprises Hg, such as the rare gas of Ar or Xe with such as Nal, Tll or Dyl
3The mixture of metal halide.The example of other packing material is well-known in the prior art.
Discharge cavity comprises center drum body portion 32 and first, second shank 34,36.Electrode is connected to the power supply (not shown) by lead.Electrode generally is made of tungsten, and because thermal coefficient of expansion is close with aluminium oxide, so in order to reduce to act on the thermal stress of aluminium oxide shank, lead is niobium and molybdenum.
Discharge cavity is sealed by the opposite ends of label 40,42 expressions.Sealing structure optimization ground is the dysprosia-aluminium oxide-fused silica powder around fusing the time can be received within conductor, and this glass flows in shank and form sealing between conductor and leg.Size by selecting shank is so that make the temperature of sealing reduce a desired number with respect to the temperature rise of discharge cavity.Obviously, the influence of the axial location of electrode is across the voltage drop of electrode, and this voltage drop influences the lighting quality of generation significantly.Therefore, controlling this, to influence between the electrode shank axial location at interval very important.
As the above-mentioned instruction that is all in the co-pending application, should reduce the number of components that constitutes discharge cavity, so that reduce the number of connection between the parts.The advantage of doing like this is the assembling of having accelerated discharge cavity, has reduced the potential connection defective in the manufacturing process, thereby has reduced the possibility of discharge cavity breakage in processing procedure.Parts preferably constitute by the mixture of mold pressing pottery and binding agent.For example, mixture comprises the ceramic powder of 95-98% weight and the organic binder bond of 2-5% weight.Ceramic powder can comprise purity 99.98%, the about 2-10m of surface area
2Aluminium oxide (the AL of/g
2O
3).Alumina powder can mix and for example equal the magnesium oxide of 0.03-0.2%, preferred 0.05% alumina weight, to suppress grain growth.Spendable other ceramic material comprise such as nonactive refractory oxides such as yittrium oxide, luteium oxide, hafnium oxide and their solid solution and such as yttrium-aluminium-garnet and aluminum oxynitride (alumina oxynitride) with compound aluminium oxide.Binding agent can use separately or be used in combination with organic polymer such as polyalcohol, polyvinyl alcohol, vinyl acetic acid esters, acrylates, cellulose and polyester.
An exemplary compositions that is used for the mold pressing solid cylinder comprises the alumina powder of 97% weight, and this alumina powder has 7m
2The surface area of/g, and can be from BaikowskiInternational, Charlotte, NC obtains, its production number is CR7.Alumina powder its weight of mixing is 0.1% magnesium oxide of aluminium oxide.This component also comprises the polyvinyl alcohol of 2.5% weight that can obtain from GE Lighing, production number 115-009-018 and the Carbowax600 of 1/2% (0.5%) weight that can obtain from Interstate Chemical.
After the mold pressing, utilize pyrolysis that the parts that bique is burnt till are removed and formed to binding agent never in the processing part usually.The process of pyrolysis be with airborne semifinished part from room temperature (through 4-8 hour) be heated to that 900-1100 ℃ maximum temperature imports, after this keep this maximum temperature 1-5 hour, cool off this parts at last.After the pyrolysis, this bique is burnt till the generally about 40-50% of porosity of the parts of (just burning).
Parts should be just burnt in machine work then.Can bore a duct that is used for first shank along the axis of solid cylinder.Then, along this axis bore the bigger duct of diameter, to form described cavity.At last, utilize lathe for example to process the outside of original solid cavity, to form the outer surface of first shank along the part of this axis.Can form second shank in a similar fashion.At first bore a little duct of passing shank, the outside that processes original solid cylinder processes transition portion afterwards and keeps the flange that radially extends to form shank.
Parts with processing before sintering assemble, so that sintering step links together parts.According to exemplary method of attachment, select to be used to form the density of the first burning parts of main element and leg, to realize in the sintering process amount of contraction in various degree.The different densities that just burns parts can reach by the ceramic powder that use has a different table area.For example, the surface area that is used to form the ceramic powder of first parts can be 6-10m
2/ g, and the surface area that is used to form the ceramic powder of second parts can be 2-3m
2/ g.Fine powder in first parts makes the density of main body first parts that just burn littler than the density of second parts of the first burning of being made by corase meal.The first unfired density of first parts generally is aluminium oxide solid density (3.986g/cm
3) 42-44%, the first unfired density of second parts generally is the 50-60% of aluminium oxide solid density.Do not burn the second parts densification as before owing to just burn first parts, thus relative amount of contraction (being 3-10%) in sintering, produced, thus form sealing around transition portion.With two parts assemblings, sintering step makes two parts be joined together to form a discharge cavity before sintering.
Sintering step can carry out like this, promptly in refractory metal type combustion chamber, with at 1850 ℃ down and at hydrogen (H with about 0 ℃-+15 ℃ dew point
2) in heating just burnt parts three to five hours.After the heat treated, parts were through about two hours cool to room temperature.Contained magnesium oxide suppresses grain growth usually to greater than 75 μ m in the ceramic powder.The pottery that obtains comprises the tight sintered polycrystalline alumina with optical semi-transparency.
According to another method, the glass dust that for example contains pyroceram can be arranged between first and second parts so that through heating two parts are linked together.According to this method, each parts of sintering separately before build-up member.
Behind sintering, first and second parts generally all have be less than or equal to 0.1%, preferably less than 0.01% porosity.Porosity is generally defined as the no units of an expression by the ratio of the occupied object cumulative volume in space.0.1% or the aluminium oxide of littler porosity generally have suitable optical transmittance or half transmitance.This transmitance or half transmitance can be restricted to " total transmitance ", the small filament lamp in the discharge cavity that it is removed by the transmitted light flux from exposed miniature incandescent lamps see through luminous flux.In porosity is 0.1% or more hour, total transmitance generally is 95% or bigger.
According to another exemplary constructive method, the mixture of annotating the binding agent of the ceramic material comprise the 45-60% volume and 45-60% volume by mould forms the parts of discharge cavity.Ceramic material can comprise and has the about 30m of about 1.5-
2/ g, usually at 3-5m
2The alumina powder of the surface area the between/g.According to an embodiment, alumina powder has 99.98% purity at least.Alumina powder can doping content equal the 0.03-0.2% of alumina weight, preferably 0.05% magnesium oxide, to suppress grain growth.
Binding agent can comprise wax mixture or polymeric blends.Binding agent according to an embodiment comprises:
The paraffin of 33 α weight portions, fusing point 52-58 ℃;
The paraffin of 33 α weight portions, fusing point 59-63 ℃;
The paraffin of 33 α weight portions, fusing point 73-80 ℃.
Following substances joins in the paraffin of 100 weight portions:
The cera alba of 4 weight portions;
The oleic acid of 8 weight portions;
The aluminum foil stearate of 3 weight portions.
Above-mentioned paraffin can obtain from Aldrich Chemical, and its production number is respectively 371659,327212 and 411671.
In mould was annotated technology, the mixture of pottery and binding agent was heated and forms full-bodied mixture.With the mould of this mixture injection one suitable shape, cooling then forms molded parts.
After mould is annotated, utilize heat treatment that binding agent is removed and formed non-bonding parts from moulding part usually.Can be in air or in the environment of control, for example in vacuum, nitrogen, rare gas, moulding part is heated to maximum temperature and keeps this maximum temperature and heat-treat.For example, temperature can per hour improve about 2-3 ℃ mode and is heated to 160 ℃ gradually from room temperature.Afterwards, temperature is heated to maximum temperature 900-1100 ℃ per hour to improve about 100 ℃ mode.At last, temperature kept about 1-5 hour at 900-1100 ℃.Then cool off these parts.After the heat treatment, porosity is about 40-50%.
Usually assembling is just burnt parts so that realize that sintering step links together parts before sintering.Selection is used to form the density of the first burning parts of first and second parts, so that degree of shrinkage in the realization sintering in various degree.Utilization has the different densities that burns parts at the beginning of the ceramic powder of different table area can be realized as mentioned above.
According to an embodiment, product is made of the mixture of the binding agent of aluminium oxide that comprises 48% volume and 52% volume.Aluminium oxide has 3m
2The surface area of/g also is doped to the magnesium oxide of alumina weight 0.05%.Use above-mentioned wax binding agent.Thickness has sufficient transparency when the product of about 3mm is on being pressed against newsprint, by this product reading newsprint without any difficulty.
Under the prerequisite that does not depart from the scope of the present invention with purpose, it will be obvious to those skilled in the art that can be such as green processing or just burn pottery, slip casting casting and sol-gel and handle and be used for making and being connected the employed discharge cavity of ceramic discharge lamp.
By above-mentioned general making and connection technology or alternative technology, will be in conjunction with the various single-ended discharge cavity that uses in Fig. 2-13 explanation ceramic discharge lamp.For example, Fig. 2 and 3 expressions have first and second embodiment of the single-ended ceramic discharge cavity of two modular constructions.First parts 50 comprise the groove 52 that can process as stated above or form.Continuous side walls 54 provides a primary circle rod structure for final discharge cavity structure.Second parts 60 comprise first and second legs 62,64 that stretch out respectively from it.Two substantially parallel settings of leg, its reason will be described hereinafter. Leg 62,62 outwards stretches from disk 66, and the size of disk 66 is configured to be contained within first component side walls 54.In case sintering also links together, first and second parts limit a ceramic arc discharge chamber that only has the sealing of a syndeton.
For this structure, the total length of its discharge tube is shorter than the total length of both-end structure shown in Figure 1 significantly.To make the lamp design compact more owing to reduce total lamp length.In addition, owing to the end of two legs 62,64 from the arc discharge chamber stretches, so the light-centre length size also reduces.This structure also can be avoided the poisonous chemical reactant that quickens because of the high-temperature injurious effects to the ceramet sealing.That is, the sealing in each leg 62,64 is arranged in the position away from the hot operation of cavity electric arc or plasma.Other advantage of this embodiment and following alternate embodiment also is tangible.Particularly, can realize that optical density preferably distributes.Because the end of a cleaning of discharge tube is provided, can obtain bigger luminous flux and optical density distribution.Electrode or leg no longer the stray light emittance from the transmission of the non-leg end of electric arc tube.The cleaning end of discharge tube has higher transmitance, so discharge tube radiation and loss reduce, lamp efficient and color effect improve.
Because only use a single syndeton,, therefore eliminated and sealed required making step before this so electric arc tube can be sealed in the single cycle.On the other hand, this two assembly electric arc tubular construction with a co-sintered syndeton have kept this to be all many advantages in the co-pending application, also to have increased other useful feature simultaneously.
Another advantage is to control the arc gap size subtly.Electrode is not to insert from the end opposite in arc discharge chamber, thereby in the both-end cavity of prior art electrode is difficult to control required arc gap when the end opposite in arc discharge chamber is inserted.On the contrary, single-ended discharge vessel structure shown in Figure 2 defines arc gap according to the depth of parallelism of ceramic leg.Obviously, this structure is easier to control required arc gap than prior art.
Another kind of consideration is that single-ended design can make electrode be sealed in the leg during the parts sintering.In addition, the single-ended discharge vessel structure of this proposal can not apply any restriction to the structure of the plug or second parts 60.Have, as being all described in the co-pending application, the shape of plug can be the combination of flat, sphere, columniform or these structures again.By control electrode setting subtly, can guarantee flicker free running and stable electric arc fixing point position on the electrode surface.
The remodeling of Fig. 3 presentation graphs 2 structures, wherein, similar parts represent that with same numeral new parts limit new architectural feature.Here, second parts or plug comprise a convex shoulder 70, and the end of convex shoulder 70 and first component side walls 54 72 engages against ground.This accurate and reliable axial location against first parts 50 that relative ceramic arc discharge chamber is provided to plug.
The exemplary embodiment of Fig. 4 has slightly changed first parts 80, and it limits a plug and makes it to have convex shoulder 82, and convex shoulder 82 provides reliable axial location for plug in the spread side walls 84 of second parts.It shall yet further be noted that leg 62,64 has the part 86,88 that is stretched in the cavity respectively, to realize more reliable startup and more stable running.
In Fig. 5, blast pipe 90 is integrally formed on first moulding part or the capping plug 80.This shows that the design's flexibility and many useful improvement are all capable of being combined in this ceramic discharge chamber design.
Fig. 6 and 7 expressions have the preferred embodiment of difform first parts or cover.In Fig. 6, cover 100 has conventional dome-shaped 102.As can be known, moldable or mould is annotated these parts 100 so that the structure of the single-end discharge lamp with gas dome to be provided.The continuous smooth-sided of circumference ground transition or incorporate in this curved surface shaped or the domed formation.The convex shoulder 70 of second parts 60 engages against the terminal edge of ground with first component side walls, to form the single connection between the parts.In Fig. 7, dome structure comprises integral type lens 104.Certainly, this has increased the optical density distribution, and produces bigger luminous flux as the lens with a particular design directly are installed to result in the electric arc tube.
Fig. 8 and 9 shows the modification of single-ended discharge cavity structure.When in the end assembling, can make single-ended ceramic metal halide lamp with cramped construction.But in these embodiments, leg 110,112 is formed in the leg male component 114,116 of difference injection-molded.Except reverse or mirror image matched edges 118,120, these leg male components are basic identical.This just allows a leg male component to shrink and forms a sintering syndeton with the second leg male component.Each parts comprises a Unitarily molded single leg wherein, and this leg can accurately relative this electrode of each positioning parts.When combining, the common complete single-ended ceramic discharge cavity that limits of these leg male components, the arc gap size in this discharge cavity between the electrode can accurately be set.
In the more similar scheme of Fig. 9, also comprise the central body portion that constitutes by for example moulded body 122.Although increased the quantity of connecting portion, centerbody parts 122 can be made of the aloxite (AI or the alumina part of for example mold pressing.Can carry out required being connected with independent leg male component in the end opposite of centerbody with sintering same as described above and Connection Step.Be provided with to such an extent that be used to receive the groove 118 of moulded body 122 end opposite if each leg male component 114,116 comprises towards outer and size, then also can simplify assembling.
As mentioned above, utilize the accurate dimension between the parallel leg electrode that obtain, that be also referred to as arc gap can realize some advantage.On the other hand, Figure 10 and 11 expressions by make electrode to each other angulation obtain the situation of some advantage.For example, in Figure 10, molded leg plug body parts 130 comprise leg 132,134, when leg 132,134 forms inside angle when discharge cavity stretches.That is, electrode 136,138 is positioned at position separately with preliminary dimension, and this size is less than the size between the leg outer end conductor 140,142.This structure has been avoided between the lead in a scope in the cavity outside electric arc taking place.Because the distance between the arc chamber outboard wire is bigger, electric arc with regard to unlikely with required cavity in opposite opposed external position place produce.
The preferred embodiment of Figure 11 also comprises angled electrode structure.It shows that also further feature is capable of being combined in the ceramic arc discharge cavity configuration.For example, inside, chamber comprises crooked groove 150,152.Those skilled in the art as can be known, this ceramic arc discharge cavity configuration is desirable in selected environment.
The variation combination of Figure 12 and the aforementioned feature of 13 expressions.For example, in Figure 12, dome-shaped cover 160 combines with second parts 162 with crooked inner groovy 164.Leg still is limited in the parts that assembled discharge cavity, so can obtain all advantages of single-ended cavity.This structure changes in Figure 13 part omitted, and wherein, leg comprises the part 166,168 that extend in the discharge cavity.But in all others, the embodiment of Figure 13 is basic similar to the embodiment of Figure 12.
The present invention has been described in conjunction with exemplary embodiment.Other people who reads and understood this specification can make and improving and distortion.For example, US4, processing and synthetic material in 285,732 can be used for making the optics half transmitting aluminium oxide ceramics that is used in combination with the present invention.The present invention will the place of comprising within the scope of the appended claims or those remodeling and variation within its equivalent scope.
| | Parts | |
| 20 | |
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| 22 | |
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| 24 | The |
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| 26 | The |
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| 28 | The |
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| 30 | The |
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| 32 | |
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| 34 | The |
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| 36 | The |
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| 50 | |
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| 52 | |
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| 54 | |
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| 60 | Second component/ |
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| 62 | The |
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| 64 | The |
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| 66 | The end |
| | Parts | |
| 70 | Convex |
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| 72 | The top | |
| 80 | First component/ |
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| 82 | Convex |
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| 84 | Sidewall/ |
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| 86 | The leg extension | |
| 88 | The |
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| 90 | Blast pipe | |
| 100 | Cover | |
| 102 | Dome structure | |
| 104 | |
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| 110 | The first |
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| 112 | The second |
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| 114 | Convex |
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| 116 | Convex shoulder |
| Reference number | Parts |
| ????120 | The centerbody parts |
| ????130 | Second parts |
| ????132 | First leg |
| ????134 | Second leg |
| ????136 | First electrode |
| ????138 | Second electrode |
| ????140 | First conductor |
| ????142 | Second conductor |
| ????150 | Concave surface/crooked groove |
| ????152 | Concave surface/crooked groove |
| ????160 | Gas dome |
| ????162 | Second parts |
| ????164 | Crooked groove |
| ????166 | The leg extension |
| ????168 | The leg extension |
Claims (19)
1. a ceramic discharge lamp (20) comprising:
Ceramic package with cavity (22), cavity is suitable for holding a filler in (22);
First and second electrodes (24,26) are provided with in cavity separatedly, so that produce an electric arc according to being across the voltage that electrode applies, this electrode concerns setting with non axial each other.
2. ceramic discharge lamp as claimed in claim 1 is characterized in that, ceramic package is annotated by mould and made.
3. ceramic discharge lamp as claimed in claim 1 is characterized in that ceramic material comprises aluminium oxide.
4. ceramic discharge lamp as claimed in claim 1 is characterized in that, electrode is configuration substantially parallel each other.
5. ceramic discharge lamp as claimed in claim 1 is characterized in that, the non-parallel each other landform of electrode (136,138) disposes at angle.
6. ceramic discharge lamp as claimed in claim 1 is characterized in that, ceramic package is linked together by first and second main elements (50,60) and constitutes.
7. ceramic discharge lamp as claimed in claim 6 is characterized in that, first and second main elements (50,60) are sintered together.
8. ceramic discharge lamp as claimed in claim 6 is characterized in that, first and second main elements (50,60) are joined together along a single bonding pad.
9. ceramic discharge lamp as claimed in claim 6 is characterized in that, first and second electrodes (24,26) all stretch into the cavity from first main element.
10. ceramic discharge lamp as claimed in claim 9 is characterized in that, second main element is formed in the integral type lens (104).
11. ceramic discharge lamp as claimed in claim 6 is characterized in that, first and second electrodes (24,26) stretch into the cavity from first and second main elements respectively.
12. a method of making the ceramic discharge cavity, its step comprises:
Form first main element (50) with ceramic material;
Form second main element (60) with second ceramic material;
With first and second main elements location to limit a cavity between them;
First and second electrodes (24,26) are installed at least one parts of first and second main elements with non axial each other relation.
13. the method as claim 12 is characterized in that, also comprises step: first and second main elements (50,60) are linked together.
14. the method as claim 13 is characterized in that, Connection Step comprises with first and second main elements (50,60) sintering together.
15. the method as claim 12 is characterized in that, installation steps comprise first and second electrodes are installed in first main element.
16. the method as claim 15 is characterized in that, installation steps comprise makes the relation location of first and second electrodes to be substantially parallel to each other.
17. the method as claim 15 is characterized in that, installation steps comprise makes first and second electrodes (136,138) form location, angle ground each other.
18. the method as claim 12 is characterized in that, installation steps comprise first electrode are installed on first main element, second electrode is installed on second main element.
19. the method as claim 12 is characterized in that, also comprises step: second main element is integrally formed on the lens (104).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47155199A | 1999-12-23 | 1999-12-23 | |
| US09/471,551 | 1999-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1303121A true CN1303121A (en) | 2001-07-11 |
Family
ID=23872044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00136446 Pending CN1303121A (en) | 1999-12-23 | 2000-12-22 | Single end ceramic arc discharge lamp and its manufacturing method |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1111654A1 (en) |
| JP (1) | JP2001256919A (en) |
| CN (1) | CN1303121A (en) |
| TW (1) | TW478006B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043346A (en) * | 2009-10-13 | 2011-05-04 | 优志旺电机株式会社 | Light source apparatus |
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| CA2316649A1 (en) * | 1999-09-29 | 2001-03-29 | Rodrique Thibodeau | Ceramic arc tube |
| CN1511336A (en) * | 2000-11-06 | 2004-07-07 | 通用电气公司 | Ceramic discharge chamber for discharge lamp |
| WO2003032363A1 (en) * | 2001-10-02 | 2003-04-17 | Ngk Insulators, Ltd. | High-voltage discharge lamp, head lamp for automobile and arc tube for the high-voltage discharge lamp |
| US6791267B2 (en) | 2001-10-02 | 2004-09-14 | Ngk Insulators, Ltd. | High pressure discharge lamps, lighting systems, head lamps for automobiles and light emitting vessels for high pressure discharge lamps |
| US6696788B2 (en) * | 2001-12-21 | 2004-02-24 | Osram Sylvania Inc. | Double jacketed high intensity discharge lamp |
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| US7839089B2 (en) | 2002-12-18 | 2010-11-23 | General Electric Company | Hermetical lamp sealing techniques and lamp having uniquely sealed components |
| US7404496B2 (en) | 2005-06-20 | 2008-07-29 | Osram Sylvania Inc. | Green-state ceramic discharge vessel parts |
| US20050211370A1 (en) * | 2005-06-20 | 2005-09-29 | Osram Sylvania Inc. | Ceramic discharge vessel with joined capillaries |
| US7414366B2 (en) | 2005-06-20 | 2008-08-19 | Osram Sylvania Inc. | Single-ended discharge vessel with diverging electrodes |
| US7394200B2 (en) * | 2005-11-30 | 2008-07-01 | General Electric Company | Ceramic automotive high intensity discharge lamp |
| JP2010514125A (en) * | 2006-12-20 | 2010-04-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Metal halide lamps and ceramic burners for such lamps |
| US8102121B2 (en) | 2007-02-26 | 2012-01-24 | Osram Sylvania Inc. | Single-ended ceramic discharge lamp |
| CN104578037A (en) * | 2015-01-29 | 2015-04-29 | 吴传涛 | DC (direct current) automatic load box high-voltage discharge element |
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| JPS53123579A (en) * | 1977-04-04 | 1978-10-28 | Hitachi Ltd | Metal vapor discharge lamp |
| US4285732A (en) * | 1980-03-11 | 1981-08-25 | General Electric Company | Alumina ceramic |
| JPS5812252A (en) * | 1981-07-14 | 1983-01-24 | Toshiba Corp | Small-sized metal vapor discharge lamp |
| US4950053A (en) * | 1987-01-05 | 1990-08-21 | General Electric Company | Multibend fluorescent light source for liquid crystal displays with out of plane lamp electrodes |
| HUT47763A (en) * | 1987-07-16 | 1989-03-28 | Tungsram Reszvenytarsasag | Three-phase high-pressure gas-discharge lamp |
| JPH0630240B2 (en) * | 1989-01-26 | 1994-04-20 | 清志 猿渡 | Ultra high pressure mercury lamp |
| JPH056756A (en) * | 1991-06-26 | 1993-01-14 | Nishibori Minoru | Metal vapor discharge lamp |
| JPH09180678A (en) * | 1995-12-27 | 1997-07-11 | Nec Home Electron Ltd | Discharge lamp for display |
| JPH09180679A (en) * | 1995-12-27 | 1997-07-11 | Nec Home Electron Ltd | Discharge lamp for display |
| US5768663A (en) * | 1997-01-29 | 1998-06-16 | Lin; Bob | Light source arrangement of a scanner |
| US6583563B1 (en) * | 1998-04-28 | 2003-06-24 | General Electric Company | Ceramic discharge chamber for a discharge lamp |
| JP3422253B2 (en) * | 1998-04-30 | 2003-06-30 | ウシオ電機株式会社 | High pressure discharge lamp |
-
2000
- 2000-12-11 TW TW89126385A patent/TW478006B/en not_active IP Right Cessation
- 2000-12-20 EP EP00311484A patent/EP1111654A1/en not_active Withdrawn
- 2000-12-22 JP JP2000389670A patent/JP2001256919A/en not_active Withdrawn
- 2000-12-22 CN CN 00136446 patent/CN1303121A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043346A (en) * | 2009-10-13 | 2011-05-04 | 优志旺电机株式会社 | Light source apparatus |
| CN102043346B (en) * | 2009-10-13 | 2014-10-08 | 优志旺电机株式会社 | Light source apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001256919A (en) | 2001-09-21 |
| EP1111654A1 (en) | 2001-06-27 |
| TW478006B (en) | 2002-03-01 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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