CN1351367A - Luminous container for high voltage discharge lamp - Google Patents
Luminous container for high voltage discharge lamp Download PDFInfo
- Publication number
- CN1351367A CN1351367A CN01142586.5A CN01142586A CN1351367A CN 1351367 A CN1351367 A CN 1351367A CN 01142586 A CN01142586 A CN 01142586A CN 1351367 A CN1351367 A CN 1351367A
- Authority
- CN
- China
- Prior art keywords
- discharge lamp
- discharge
- housing
- voltage discharge
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
To provide a light emitting vessel for a high pressure discharge lamp which can prolong the life of the lamp even if the light emitting space of discharge is cylinder-shaped. The light emitting vessel is composed of a cylinder-shaped trunk part 1 forming a light emitting space of discharge, ring-shaped sealing parts 2, 2 sealing both ends of the trunk part 1 respectively, and capillary parts 3, 3 extruding outsides from almost center part of the sealing part so as to face each other in opposite direction, and fixing an inserted discharge electrodes, which are formed so as to have transparency by using alumina as a main component, and inner surface of the trunk part at a boundary part 4 of the trunk part 1 and the sealing part 2 is formed so as to have R with a diameter of 1.0 mm to make the thickness change gradually.
Description
Technical field
The present invention relates to a kind of luminous containers that constitutes by light transparent ceramic of the high-pressure discharge lamp that is used for high pressure sodium vapour lamp or metal halide lamp etc.
Background technology
The discharge lamp that uses the Discharge illuminating space to form the luminous containers that is made of light transparent ceramic of cylinder type is widely used as ceramic discharge lamp.This luminous containers forms structure shown in Fig. 3 (a) and (b), promptly has a housing 10 of the cylinder type that forms the Discharge illuminating space in central authorities, its left and right end portions is by shut 11 sealings of ring-type, simultaneously, capillary 12 connects opposed to each other at the basic middle position of shut 11, after in the Discharge illuminating space, enclosing luminescent substance or starting gas, sealing when electrode is inserted capillary 12 forms discharge lamp.
After each several parts such as housing 10, shut 11, capillary 12 were formed separately, the back that links into an integrated entity formed luminous containers.
The problem that invention is solved
The temperature in cylinder bight of luminous containers with above-mentioned cylinder type Discharge illuminating space is minimum when lighting, accumulate luminescent substance easily as corrosive substance at this position, the result, with respect to lighting the photochromic with low uncertainty of direction, owing to accumulate luminescent substance easily, so be easy to generate corrosion in the bight, the corrosion of this part has determined the life-span of lamp.
Luminous containers with above-mentioned cylinder type Discharge illuminating space adopts a plurality of parts of assembling, the manufacture method that contraction during by sintering engages, shown in the partial enlarged drawing of Fig. 3 (a), form wedge gap 13 easily at the junction surface, particularly in the gap 13 that the bight of housing 10 produces, infiltrating luminescent substance easily, cause corrosion, is the principal element that influences long lifetime.In addition, this wedge gap causes that easily stress is concentrated, and the thermal stress that produces in lighting is the main cause that influences long lifetime.
In view of the above problems, the purpose of this invention is to provide a kind of Discharge illuminating space is cylinder type, can prolongs the liminous container for high-voltage discharge lamp in lamp life-span again.
Technical solution
In order to address the above problem, the invention of claim 1 is a kind of liminous container for high-voltage discharge lamp, has the cylinder type shell that forms the Discharge illuminating space, seal the ring seal portion at these housing two ends respectively, outwards outstanding to insert the fixedly capillary portion of sparking electrode with basic middle position in mutual opposed mode since two closure, constitute by light transparent ceramic, it is characterized in that: on the housing inner face end of the interface that constitutes described housing and closure, be provided with and form R, the main cause that influences long lifetime of having avoided the generation because of wedge gap to cause.
The invention of claim 2 is characterized in that according to the invention of claim 1: the R value is 0.01-2.0mm.
Brief description of drawings
Fig. 1 is the cross-sectional illustration figure of liminous container for high-voltage discharge lamp of an example of the expression embodiment of the invention.
Fig. 2 is the cross-sectional illustration figure of the liminous container for high-voltage discharge lamp of other embodiment of expression the present invention.
Fig. 3 (a) and (b) are cross-sectional illustration figure of existing liminous container for high-voltage discharge lamp.
Embodiment
Describe specific embodiments of the invention below with reference to the accompanying drawings in detail.
Fig. 1 is the cross-sectional illustration figure of expression according to an example of liminous container for high-voltage discharge lamp of the present invention, has the cylinder type shell 1 that forms the Discharge illuminating space in centre, its two ends are by closure 2,2 sealings of annular, parallel from the central authorities of closure 2 with housing 1, and the outstanding opposed to each other capillary portion 3,3 that connects thin footpath.This capillary portion 3 is inserted in the clavate electrode conductor (not shown) that front end is provided with sparking electrode, with sealing and fixing.
These parts are shaped as main component with pottery, the back is installed to form as one by sintering, has light transmission, an example of the size of expression each several part, the outer diameter D 1 of housing 1 is 11.6mm, and inside diameter D 2 is 9.4mm, and length L 1 is 19mm, the thickness W1 of closure is 3mm, and the total length L2 of luminous tube is 47mm.
Shown in enlarged drawing, form curved surface with inner face with certain diameter as the housing 1 of the interface 4 of the closure 2 in the bight in Discharge illuminating space, the R of diameter 1.0mm promptly is set, avoid producing wedge shape in the bight, Discharge illuminating space.
Therefore, the bight in the Discharge illuminating space of the housing by easy corrosion has R, can avoid producing in the bight gap of wedge shape, realizes long lifetime.
In addition, the R value is during less than 0.01mm, and effect diminishes, and when surpassing 2.0mm, because ceramic volume increases, causes lamp efficient to reduce, and luminescent substance is difficult to accumulate in the bight, with the weak effect of Discharge illuminating space as cylinder type, so preferably from 0.01mm to 2.0mm.Particularly best in the scope of 0.3-1.0mm.
Fig. 2 represents other example of the present invention, represents the situation of integrally formed housing 1, closure 2, capillary portion 3.Material is the same with the foregoing description with profile etc.
Integrally formed and the foregoing description of this shape is compared, and ground, no interface is shaped between housing, closure, capillary portion easily.In the above-described embodiments, in order not produce this interface, be necessary composition and the overall moisture content or the partially aqueous rate of trickle each part of adjustment.
Be suitable for by permanent mo(u)lding method or in permanent mo(u)lding method and freeze forming process, injection molding method or gel shaped method, can carry out integral forming easily,, then can not produce wedge gap, realize stable long lifetime if integrally formed.In addition,, at the interface place of housing 1 and closure 2 R is set easily,, is difficult to produce stress and concentrates, be difficult to crack, more help long lifetime by R is set by integrally formed.
In addition, in the left and right sides in Discharge illuminating space both sides' bight, the position that R is set also can be a side, and assembling is used under the situation of luminous containers, is accumulating luminescent substance easily on the side of bottom, thus also only the side below being formation R is set.
The invention effect
As mentioned above, can prolong the lamp life-span according to the present invention.
Claims (2)
1. liminous container for high-voltage discharge lamp, have the cylinder type shell that forms the Discharge illuminating space, seal the ring seal portion at these housing two ends and outwards outstanding in mutual opposed mode respectively to insert the fixedly capillary portion of sparking electrode since the basic middle position of two closure, constitute by light transparent ceramic, it is characterized in that: on the housing inner face end of the interface that constitutes described housing and closure, be provided with and form R.
2. according to the liminous container for high-voltage discharge lamp of claim 1, it is characterized in that: the R value is 0.01-2.0mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000333372A JP2002141020A (en) | 2000-10-31 | 2000-10-31 | Light emitting vessel for high pressure discharge lamp |
| JP333372/00 | 2000-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1351367A true CN1351367A (en) | 2002-05-29 |
Family
ID=18809466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01142586.5A Pending CN1351367A (en) | 2000-10-31 | 2001-10-31 | Luminous container for high voltage discharge lamp |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1202324A1 (en) |
| JP (1) | JP2002141020A (en) |
| CN (1) | CN1351367A (en) |
| HU (1) | HUP0104628A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314074C (en) * | 2002-03-20 | 2007-05-02 | 松下电器产业株式会社 | Metal haloid lamp |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004519823A (en) * | 2000-11-06 | 2004-07-02 | ゼネラル・エレクトリック・カンパニイ | Ceramic discharge chamber for discharge lamp |
| JPWO2005096347A1 (en) * | 2004-03-31 | 2007-08-16 | 松下電器産業株式会社 | Metal halide lamp and lighting device using the same |
| JP2008243721A (en) * | 2007-03-28 | 2008-10-09 | Harison Toshiba Lighting Corp | Discharge lamp |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2144486A1 (en) * | 1971-09-06 | 1973-03-15 | Degussa | BURNER HOUSING FOR GAS DISCHARGE LAMPS MADE OF LIGHT TRANSLUCENT CERAMIC MATERIALS |
| JPS6020446A (en) * | 1983-07-14 | 1985-02-01 | Mitsubishi Electric Corp | Lamp |
| DE3680070D1 (en) * | 1985-10-25 | 1991-08-08 | Gen Electric | ASYMMETRIC ARCH CHAMBER FOR A DISCHARGE LAMP. |
| SE457760B (en) * | 1987-03-23 | 1989-01-23 | Lumalampan Ab | PROCEDURES FOR THE PREPARATION OF COMPACT LIGHTS |
| DE9207139U1 (en) * | 1992-05-26 | 1992-07-16 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Mercury vapor low-pressure discharge lamp |
| JP3507179B2 (en) * | 1995-01-13 | 2004-03-15 | 日本碍子株式会社 | High pressure discharge lamp |
| JPH10247476A (en) * | 1997-02-28 | 1998-09-14 | Toshiba Lighting & Technol Corp | Tubular bulb, light source device, light projecting device, and projector device |
-
2000
- 2000-10-31 JP JP2000333372A patent/JP2002141020A/en active Pending
-
2001
- 2001-10-31 EP EP01309263A patent/EP1202324A1/en not_active Withdrawn
- 2001-10-31 HU HU0104628A patent/HUP0104628A3/en unknown
- 2001-10-31 CN CN01142586.5A patent/CN1351367A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314074C (en) * | 2002-03-20 | 2007-05-02 | 松下电器产业株式会社 | Metal haloid lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1202324A1 (en) | 2002-05-02 |
| JP2002141020A (en) | 2002-05-17 |
| HU0104628D0 (en) | 2002-01-28 |
| HUP0104628A2 (en) | 2002-06-29 |
| HUP0104628A3 (en) | 2002-12-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |