EP1659617A1 - Source lumineuse - Google Patents
Source lumineuse Download PDFInfo
- Publication number
- EP1659617A1 EP1659617A1 EP04027383A EP04027383A EP1659617A1 EP 1659617 A1 EP1659617 A1 EP 1659617A1 EP 04027383 A EP04027383 A EP 04027383A EP 04027383 A EP04027383 A EP 04027383A EP 1659617 A1 EP1659617 A1 EP 1659617A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- burner
- pinch
- proximal
- illuminant
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 229910001507 metal halide Inorganic materials 0.000 claims description 6
- 150000005309 metal halides Chemical class 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 9
- 239000011888 foil Substances 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 229910052750 molybdenum Inorganic materials 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 239000005341 toughened glass Substances 0.000 description 3
- 208000034656 Contusions Diseases 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000025962 Crush injury Diseases 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 208000034526 bruise Diseases 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009519 contusion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 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
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
-
- 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
- H01J61/34—Double-wall vessels or containers
Definitions
- the invention relates to a luminous means with an elongated piston formed from transparent material, comprising a burner arranged in the interior of the piston, sealed burner connections comprising a proximal burner port and a distal burner port, each diametrically away from the burner in the longitudinal direction of the piston in a proximal and distal end region protrude the plunger, and leads that are passed through a pinch in the piston and connected there to the burner terminals, comprising according to the features of the preamble of claim 1 and 2 and a reflector lamp, in particular metal halide vapor reflector lamp comprising the illuminant of the invention.
- a discharge tube referred to herein as burner is conventionally housed in an elongate piston formed of transparent material, the elongate piston (conventional pinch-seal piston of FIG. 4) being sealed by a pinch seal.
- the leads are also supplied to the power supply of the burner.
- the supply lines must be passed over a sufficient minimum sealing length through this pinch to ensure a reliable seal between the material of the piston and the supply lines.
- This minimum sealing length requires that the piston is designed to be comparatively long in terms of its overall external dimensions, with a shorter piston, in particular a shorter length, between a socket-facing outer end of the piston and the center of the burner (light center length) being desired for a very wide variety of applications ,
- the object of the present invention is to specify the most compact possible bulbs of the type mentioned, which can be produced with reasonable effort.
- the luminous means may be provided for use with a reflector lamp, wherein due to the compact design of the luminous means also an installation in marketable compact reflector lamps is achieved for the first time.
- an additional space open to the interior of the piston is created on the piston in the area of the pinch, at least partially immersed in the parts of the burner or the proximal burner connection.
- This allows a reduction of the total length.
- the additional space communicating with the interior of the piston in the proximal end area of the piston is further away from the burner than entry points of the supply lines into the interior of the piston.
- the supply lines do not enter the end but laterally relative to the interior of the piston.
- the additional space overlaps at least partially with the squeezing required for the sealing of the leads.
- the pinch can have a substantially U-shaped basic shape.
- the pinch comprises two outer sections and a connecting portion, wherein the leads are guided by the outer sections.
- the connecting portion is dimensioned in its extension in the longitudinal extension of the piston preferably shorter than the outer portions.
- the outer portions are formed in their extension in the longitudinal extent of the piston compared to the connecting portion at least twice, preferably 4 to 10 times, in particular 7 to 8 times as long.
- the additional space tapers in a direction facing away from the burner substantially funnel-shaped.
- the additional space can have a substantially circular or oval cross-sectional shape.
- the additional space may have in its extension in the longitudinal extent of the piston has a length which is in the order of the inner diameter of the piston outside the additional space preferably in the range of 80 to 120% of this diameter.
- the inner diameter of the additional space in an extent transverse to the longitudinal extent of the piston may be in the range of 30 to 70%, preferably about 50 to 55% of the inner diameter of the piston outside the additional space.
- the piston can be dimensioned so that the distance between the burner center and an outer edge of the pinch (light center length) facing away from the burner is smaller than in the case of conventional lamps with a light center length L 1 or L 2.
- L is (L ⁇ L 'or L ⁇ L", given the same wattage).
- the conventionally required Light Center Length of 22 mm can be significantly reduced, so that a light center length ⁇ 22 mm can be achieved in this exemplary power range.
- a transparent material for the elongated piston is preferably quartz glass, hard or soft glass, in particular aluminum silicate tempered glass into consideration.
- the feed lines comprise a proximal feed line and a distal feed line, wherein the proximal feed line comprises two oppositely directed turns.
- the burner connections can either be integrally formed with the supply lines or connected electrically conductively via contact points.
- the burner may be formed as a ceramic burner, in particular of polycrystalline aluminum oxide (PCA).
- PCA polycrystalline aluminum oxide
- the burner may also be made in quartz technology.
- the illuminant according to the invention can, what is also claimed, in a reflector lamp, in particular metal halide vapor reflector lamp comprising an outer envelope formed as a reflector with a neck region, which is covered by a transparent cover, used or used on an optical axis within this envelope become.
- FIG. 4 is a sectional view of a light bulb with a pinch 25 'according to the prior art (conventional pinch seal pistons) is shown.
- An elongated, substantially cylindrically shaped piston 17 ' is hermetically sealed by the pinch 25'.
- a burner 18' In the interior of the piston 17 'is a burner 18' with burner ports 19 ', 20'.
- the burner connections 19 ', 20' must be sufficiently far away from the burner 18 'because of the strong heating in the region of the burner 18'.
- the burner ports 19 ', 20' projecting diametrically opposite, in each case into a proximal end region 21 'or distal end region 22', are electrically conductively connected to supply points of the burner 18 'with leads 23', 24 'at contact points 36', 37 '.
- the supply lines 23 ', 24' simultaneously form a mechanical fixation of the burner 18 'within the interior of the piston 17'. Relatively problematic is the implementation of the leads 23 ', 24' in the interior of the piston 17 '.
- the leads 23 ', 24' through the already mentioned pinch 25 ' are passed, wherein the leads 23', 24 'in regions in the form of a thin molybdenum foil 40' are formed to a secure seal between the piston made of quartz glass usually 17 'and the pinch 25' to ensure over long periods of operation.
- a disadvantage lies in the resulting overall length of the piston 17 ', in particular the large distance between the center of the burner 18' and an outer edge 33 'of the pinch 25' (light center length L ').
- the piston 17 is hermetically sealed here not by a pinch but by a ceramic disk 38” with the aid of sealing means 39 “or sealing paste between the piston and ceramic disk 38"
- the supply lines 23 ", 24" do not have to be guided by a pinch but can be performed gas-tight through the ceramic disc 38 ".
- the reflector lamp initially comprises an outer shell 13 designed as a reflector 11 with a neck region 12, the shell 13 being covered by a transparent cover 14.
- the transparent cover 14 can serve purely as a cover or form a lens to achieve a desired focusing of the light.
- a lighting means 16 is arranged on a central optical axis A.
- the light-emitting means 16 comprises a piston 17, which is formed here from hard glass, and is closed gas-tight at its end facing the neck region 12 of the reflector lamp by a pinch seal 25.
- a burner 18 which is formed in the present embodiment as a ceramic burner.
- the burner 18 forms a metal halide vapor discharge tube, although it has not been conventionally possible to place ceramic torches of a metal halide lamp in a reflector lamp with a reflector of about 50 mm (2 inches) diameter (MR 16 or ES 50), as described in particular in DE 102 33 073 B3 to use.
- the piston 17 according to the invention is characterized by a very compact design, ie a short design along the optical axis A, which is achieved by forming an additional space 26 open to the interior of the piston 17 in the region of the pinch 25 in a proximal end region 21 of the piston 17 is, in the burner 18 or parts of the burner, namely burner ports 19, 20 immerse at least partially. In this way, the distance from a burner 18 facing away from the outer edge 33 of the pinch 25 and the center of the burner 18 (light center length) can be shortened.
- the burner comprises 18 aligned parallel to the optical axis A, ie diametrically opposed burner ports 19, 20, namely a proximal burner port 19, which dips with its end into the additional space 26, and an opposite distal burner port 20.
- the pinch 25 is - different in the prior art shown in FIG. 5 - not as a flat cuboid portion of the piston 17, but as a flat, substantially U-shaped body.
- the pinch 25 in the presently illustrated embodiment includes a first outer portion 30 and a second outer portion 31, which are interconnected via a connecting portion 32. By the outer portions 30, 31 are leads 23, 24 gas-tight, which enter at entry points 28, 29 from the pinch 25 out in the interior of the piston 17.
- the entry points 28, 29 are located in projection on the optical axis A and on the longitudinal extent of the piston 17 closer to the burner 18 than the bottom of the additional space 26.
- the leads 23, 24 do not occur on the bottom side, but laterally into the interior of the piston 17 one.
- the supply lines 23, 24 comprise a proximal supply line 23 and a distal supply line 24.
- the proximal supply line 23 has a first bend 34 and a second bend 35 within the piston 17.
- the first bend 34 and second bend 35 are directed against each other.
- the first bend 34 is designed as a U-shaped 180 ° bend.
- the opposing second bend 35 is formed as a bent 90 ° bend and is electrically conductively connected to the proximal burner port 19 within the additional space 26 via a contact point 36.
- the distal feed line 24 is guided on the opposite side of the pinch 25 through the second outer portion 31 and extends parallel to the lateral surface of the Piston into a distal end portion 22 of the piston, where it is electrically connected via a contact point 37 with the distal burner port 20.
- the spacing of the contact points 36, 37 from the center of the burner 18 is due to the due to the enormous heat generation sufficiently long to be sized burner ports 19, 20. If the burner connections 19, 20 are made too short, adequate sealing over the service life of the burner 18 at the burner connections 19, 20 can not be ensured.
- the leads 23, 24 may be passed through the pinch 25 as circular in cross-section conductor when the piston 17 is formed of tempered glass. If, on the other hand, the piston 17 is made of quartz glass, the circular feed lines 23, 24 in the region of the pinch 25 are replaced in regions by thin foil, preferably molybdenum foil (see FIG.
- the lighting means 16 is normally connected to the reflector 11 with a ceramic cement together with a base 42.
- the leads 23 and 24 are electrically connected to the contact pins of the base 42.
- FIG. 3 shows an embodiment of a luminous means 16 according to the invention in a perspective basic view, which essentially corresponds to the embodiment illustrated with reference to FIGS. 1 and 2.
- the additional space 26 tapers in a substantially funnel shape in the direction away from the burner 18. It has a length in the direction of the optical axis A, which is in the order of magnitude of the diameter of the piston 17 or even larger than the diameter of the piston 17 is dimensioned.
- the illuminant according to the invention already described with reference to FIGS. 1 and 2 in the size comparison to the bulbs according to the state the technique of FIG. 4 and 5, in particular for illustrating the significantly shorter light center length L, shown again.
- the piston 17 is made of tempered glass.
- FIG. 7 shows a further embodiment of the luminous means 16 according to the invention in size comparison with the luminous means according to FIGS. 4 to 6 in a further modified embodiment, namely with a quartz glass bulb 17.
- the construction of the luminous means 16 according to FIG. 7 essentially corresponds to the structure of the luminous means according to FIG. 6.
- the supply lines 23, 24 expediently have a sufficiently long dimensioned Molybdenum foil section 40. With molybdenum foil, a sufficiently tight seal of the pinch 25 can be ensured even over very long periods of operation.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE502004003074T DE502004003074D1 (de) | 2004-11-18 | 2004-11-18 | Leuchtmittel |
| ES04027383T ES2283926T3 (es) | 2004-11-18 | 2004-11-18 | Medio luminoso. |
| EP04027383A EP1659617B1 (fr) | 2004-11-18 | 2004-11-18 | Source lumineuse |
| AT04027383T ATE355610T1 (de) | 2004-11-18 | 2004-11-18 | Leuchtmittel |
| US11/272,793 US7642716B2 (en) | 2004-11-18 | 2005-11-15 | Lighting mechanism having a supplementary space formed within a crimped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04027383A EP1659617B1 (fr) | 2004-11-18 | 2004-11-18 | Source lumineuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1659617A1 true EP1659617A1 (fr) | 2006-05-24 |
| EP1659617B1 EP1659617B1 (fr) | 2007-02-28 |
Family
ID=34927443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04027383A Expired - Lifetime EP1659617B1 (fr) | 2004-11-18 | 2004-11-18 | Source lumineuse |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7642716B2 (fr) |
| EP (1) | EP1659617B1 (fr) |
| AT (1) | ATE355610T1 (fr) |
| DE (1) | DE502004003074D1 (fr) |
| ES (1) | ES2283926T3 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007063059A1 (fr) * | 2005-11-29 | 2007-06-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe electrique a ampoule comportant au moins un pincement |
| EP1975975A1 (fr) | 2007-03-30 | 2008-10-01 | Patent-Treuhand-Gesellschaft Für Elektrische Glühlampen mbH | Unité de construction pour une lampe électrique dotée de pistons extérieurs |
| DE102007015481A1 (de) | 2007-03-30 | 2008-10-02 | Osram Gesellschaft mit beschränkter Haftung | Baueinheit für eine elektrische Lampe mit Außenkolben |
| DE102007015483A1 (de) | 2007-03-30 | 2008-10-02 | Osram Gesellschaft mit beschränkter Haftung | Baueinheit für eine elektrische Lampe mit Außenkolben |
| WO2008119623A1 (fr) * | 2007-03-30 | 2008-10-09 | Osram Gesellschaft mit beschränkter Haftung | Module pour ampoule électrique comprenant un verre externe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010002397A1 (de) * | 2010-02-26 | 2011-09-01 | Osram Gesellschaft mit beschränkter Haftung | Hochdruckentladungslampe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0981151A1 (fr) * | 1998-03-09 | 2000-02-23 | Ushio Denki Kabushiki Kaisha | Cermet pour lampe et lampe a decharge en ceramique |
| US20010003411A1 (en) * | 1999-12-08 | 2001-06-14 | Hisashi Honda | High-intensity discharge lamp, system for lighting the lamp and lighting appliance using the lamp |
| EP1383159A2 (fr) * | 2002-07-19 | 2004-01-21 | SLI Lichtsysteme GmbH | Lampe à reflecteur |
-
2004
- 2004-11-18 DE DE502004003074T patent/DE502004003074D1/de not_active Expired - Lifetime
- 2004-11-18 ES ES04027383T patent/ES2283926T3/es not_active Expired - Lifetime
- 2004-11-18 AT AT04027383T patent/ATE355610T1/de not_active IP Right Cessation
- 2004-11-18 EP EP04027383A patent/EP1659617B1/fr not_active Expired - Lifetime
-
2005
- 2005-11-15 US US11/272,793 patent/US7642716B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0981151A1 (fr) * | 1998-03-09 | 2000-02-23 | Ushio Denki Kabushiki Kaisha | Cermet pour lampe et lampe a decharge en ceramique |
| US20010003411A1 (en) * | 1999-12-08 | 2001-06-14 | Hisashi Honda | High-intensity discharge lamp, system for lighting the lamp and lighting appliance using the lamp |
| EP1383159A2 (fr) * | 2002-07-19 | 2004-01-21 | SLI Lichtsysteme GmbH | Lampe à reflecteur |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007063059A1 (fr) * | 2005-11-29 | 2007-06-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe electrique a ampoule comportant au moins un pincement |
| EP1975975A1 (fr) | 2007-03-30 | 2008-10-01 | Patent-Treuhand-Gesellschaft Für Elektrische Glühlampen mbH | Unité de construction pour une lampe électrique dotée de pistons extérieurs |
| DE102007015481A1 (de) | 2007-03-30 | 2008-10-02 | Osram Gesellschaft mit beschränkter Haftung | Baueinheit für eine elektrische Lampe mit Außenkolben |
| DE102007015483A1 (de) | 2007-03-30 | 2008-10-02 | Osram Gesellschaft mit beschränkter Haftung | Baueinheit für eine elektrische Lampe mit Außenkolben |
| WO2008119623A1 (fr) * | 2007-03-30 | 2008-10-09 | Osram Gesellschaft mit beschränkter Haftung | Module pour ampoule électrique comprenant un verre externe |
| WO2008119606A1 (fr) * | 2007-03-30 | 2008-10-09 | Osram Gesellschaft mit beschränkter Haftung | Ensemble modulaire pour une lampe électrique avec ampoule externe |
Also Published As
| Publication number | Publication date |
|---|---|
| US7642716B2 (en) | 2010-01-05 |
| DE502004003074D1 (de) | 2007-04-12 |
| ES2283926T3 (es) | 2007-11-01 |
| ATE355610T1 (de) | 2006-03-15 |
| EP1659617B1 (fr) | 2007-02-28 |
| US20060197422A1 (en) | 2006-09-07 |
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