EP0869537A1 - Gleichstrombogenlampe - Google Patents
Gleichstrombogenlampe Download PDFInfo
- Publication number
- EP0869537A1 EP0869537A1 EP98104179A EP98104179A EP0869537A1 EP 0869537 A1 EP0869537 A1 EP 0869537A1 EP 98104179 A EP98104179 A EP 98104179A EP 98104179 A EP98104179 A EP 98104179A EP 0869537 A1 EP0869537 A1 EP 0869537A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- lamp according
- anode
- curvature
- side longitudinal
- 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
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 14
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 10
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 9
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 7
- 150000002367 halogens Chemical class 0.000 claims abstract description 7
- 229910052738 indium Inorganic materials 0.000 claims abstract description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052794 bromium Inorganic materials 0.000 claims description 3
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 239000011630 iodine Substances 0.000 claims description 2
- 229910052716 thallium Inorganic materials 0.000 claims description 2
- BKVIYDNLLOSFOA-UHFFFAOYSA-N thallium Chemical compound [Tl] BKVIYDNLLOSFOA-UHFFFAOYSA-N 0.000 claims description 2
- 230000004907 flux Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000009826 distribution Methods 0.000 description 6
- 229910001507 metal halide Inorganic materials 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 150000005309 metal halides Chemical class 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- OKIIEJOIXGHUKX-UHFFFAOYSA-L cadmium iodide Chemical compound [Cd+2].[I-].[I-] OKIIEJOIXGHUKX-UHFFFAOYSA-L 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229940075417 cadmium iodide Drugs 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- NGYIMTKLQULBOO-UHFFFAOYSA-L mercury dibromide Chemical compound Br[Hg]Br NGYIMTKLQULBOO-UHFFFAOYSA-L 0.000 description 1
- QKEOZZYXWAIQFO-UHFFFAOYSA-M mercury(1+);iodide Chemical compound [Hg]I QKEOZZYXWAIQFO-UHFFFAOYSA-M 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 metal halide compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- CMJCEVKJYRZMIA-UHFFFAOYSA-M thallium(i) iodide Chemical compound [Tl]I CMJCEVKJYRZMIA-UHFFFAOYSA-M 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- RMUKCGUDVKEQPL-UHFFFAOYSA-K triiodoindigane Chemical compound I[In](I)I RMUKCGUDVKEQPL-UHFFFAOYSA-K 0.000 description 1
- 230000000007 visual effect 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
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
Definitions
- the present invention relates to a DC arc lamp according to the preamble of claim 1.
- the color separation effect is during the lamp operation by the between Anode and cathode of the direct current arc lamp electrical DC field caused.
- the DC electrical field influences the concentration distribution of the light-generating metal ions between the anode and Cathode.
- the spatial distribution of the metal ions between Anode and cathode usually inhomogeneous.
- different types Metal ions different concentration distributions. Since different types of metal ions have different spectral contributions to If the total luminous flux of the lamp is achieved, the undesirable result Color separation effect.
- the invention relates to a DC arc lamp with a halogen-containing filling.
- metal halides within the discharge vessel.
- Metal halides have a higher vapor pressure than the corresponding elementary ones Metals.
- the high specific bow outputs generate of typically approx. 80 W per mm arc length and more also high Vapor pressures of the light-generating metal halides. This is one hand a high luminous flux of the lamp is ensured.
- the high vapor pressures in general also the color separation effect.
- Another essential quality criterion - not only in the area of projection - are sufficient proportions of the primary colors blue, green and red for good color rendering and the desired color temperature.
- the invention is based on the technical problem of a DC arc lamp with improved operating properties, especially with regard to on projection applications, and an improved projection device specify.
- a DC arc lamp with a filling of at least the following components: one Ignition gas, mercury and a halogen, characterized by the additional Ingredient: Cadmium and / or zinc or a projection device with such a projection lamp.
- the proportion of red in the light generated can be due to lithium in the filling of the invention DC arc lamp are amplified.
- lithium mainly shows a very long-wave emission, so leads to a very deep red portion.
- V ( ⁇ ) - or brightness sensitivity curve is shown.
- the spectral sensitivity of the human eye takes on the long-wave edge significantly. Therefore, as far as the red component relates to the lithium emission supports, a correspondingly increased spectral power to be generated to generate the desired - and ultimately interesting - luminous flux.
- a metal halide direct current arc lamp is necessary in addition to an ignition gas, e.g. Argon, and a halogen, e.g. bromine or iodine, must also contain mercury to the necessary burning voltage the green color of mercury has to be taken into account.
- a halogen e.g. bromine or iodine
- the green component specified by the mercury content must when adjusting the color temperature with red, what the The problems outlined above are exacerbated.
- cadmium or zinc is used in the lamp filling is surprisingly not only the red component amplified, but also reduces the color separation effect.
- the addition of cadmium or zinc allows compared to (Sole) addition of lithium for the red portion a significant improvement the color separation problem and, with the same performance, an improved one Luminous flux.
- Mercury is an alternative to that in the context of this invention other two 2B elements cadmium and zinc are therefore unsuitable, because, to some extent, it also reduces color separation, however, excessively amplifies the green portion of the light.
- Zinc also has the advantage of the better over cadmium and mercury Environmental compatibility.
- Cadmium on the other hand, can be used for certain Applications can be advantageous because the red rendering is even better. According to the invention So in individual cases the possibility of making a decision remains between optimal lamp data and environmental aspects.
- Cd and Zn Concentrations into consideration: 0.05 to 3.0 ⁇ mol per ml vessel volume.
- concentration information refer to the sum of the individual concentrations of Cd or Zn, the concentration of one of the two individual components also Can be zero.
- the component also shows Yttrium together with the basic composition according to the invention explained special advantages.
- the first is an improvement of the luminous flux.
- Yttrium is therefore essential to achieve the above Effects of the invention are not necessary, but have been found to be related to Luminous flux, service life and maintenance are surprisingly more effective optional addition highlighted.
- Blue element is indium.
- rare earth metals especially dysprosium, and thallium.
- metal halide compounds are preferably iodine and / or bromine into consideration.
- the anode With DC arc lamps, the anode is in principle one exposed to much greater thermal stress than the cathode accordingly hotter. So that they can withstand this thermal load can, the anode is generally very large in DC arc lamps more massive than the cathode. In particular, it has in general a larger diameter.
- the temperature homogeneity of the lamp is thereby improved that the inner wall of the piston around the anode is wider than around the cathode.
- This can, depending on the shape of the electrodes selected and depending on manufacturing aspects, with different concrete geometric shapes can be achieved, being geometric simple and therefore easy to manufacture piston shapes are preferred.
- Short-arc lamps with an arc length reference are particularly preferred specific performances of more than 80, 100, 120 or best 150 W / mm.
- a reference to the piston size makes little sense, because the Piston size determined by the thermal load capacity of the piston material and consequently in future material improvements (ceramics instead of quartz glass) can decrease significantly.
- Shapes in lamp bulb molding machines are often simplified Mold production for the sake of internal surfaces corresponding to the piston shape provided, which are described in longitudinal section by radii of curvature to let.
- the anode-side and the cathode-side can often be End of the piston through a longitudinal section radius of curvature (as illustrated in the embodiment in the figure), where It is preferred according to the invention that the anode-side longitudinal section radius of curvature is smaller than the cathode side, preferably 50% to 80% of the latter. This means that the piston is stronger on the anode side curved or less flat. So another becomes on the anode side Piston shape reached.
- temperature gradients in the lamp can alternatively be degraded by a suitable reflective and / or absorbent heat build-up on the cathode-side piston end can be achieved.
- this measure also applies the piston asymmetry according to the invention in question.
- the lamp can be manufactured by at least one step is simplified.
- the piston asymmetry leaves namely by appropriate shaping of the corresponding molds in a lamp bulb molding machine without this the conventional functional sequence would be changed otherwise.
- Another The advantage is that shadowing is avoided.
- the figure shows a DC short-arc lamp with a longitudinal section Longitudinal axis 2, along which an anode 4 and a cathode 5 lie.
- a longitudinal section Longitudinal axis 2 along which an anode 4 and a cathode 5 lie.
- Piston interior thus bisecting a piston inner length 7, is also a center plane 1 perpendicular to the lamp longitudinal axis 2 is drawn.
- the piston is 1st with respect to this central plane is asymmetrically shaped.
- the anode side differ Longitudinal section half surface and the cathode side longitudinal section half surface, each of which is to the left or right of the central plane in the figure Corresponds to the longitudinal sectional area within the piston inner wall 3.
- the figure also shows that the anode-side curvature of the piston in the Longitudinal section describing radius of curvature 8 significantly smaller than that is the corresponding radius of curvature 9 on the cathode side.
- the radius of curvature 8 50% - 80% of the radius of curvature 9.
- the corresponding asymmetrical piston design has the consequence that the Pistons around the anode 4, which is much thicker than the cathode 5 maintains a sufficient distance and thus a uniform overall Temperature distribution in the longitudinal direction results.
- the figure shows that the distance between the anode 4 and the cathode 5, that is to say the arc length 6, is selected to be very short, in the present case 1.5 mm in comparison to radii of curvature of 4 mm (8) and 6 mm (9) and a lamp power of 270 W (specific power 180 W / mm).
- the inside length of the piston 7 is almost 10 times the length of the arc 6.
- An operating voltage of 35 V with a luminous flux of 18 klm results from a filling volume of 0.7 ml with a wall load of 65 W / cm 2 .
- a color temperature of 6,800 K was set with the following filling: 200 mbar argon, 20 mg mercury, 0.11 mg cadmium iodide (CdJ 2 ) - corresponding to approx.0.43 ⁇ mol Cd per ml flask volume, 0.42 mg mercury bromide (HgBr 2 ), 0.12 mg mercury iodide (HgJ 2 ), 0.05 mg indium iodide (InJ 2 ), 0.05 mg lithium iodide (LiJ 2 ), 0.11 mg dysprosium and 0.05 mg yttrium.
- Cadmium can be replaced by zinc in a molar equivalent.
- Thallium iodide can be added up to a value of 0.2 mg / ml.
Landscapes
- Discharge Lamp (AREA)
- Luminescent Compositions (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Projection Apparatus (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
| Leistungsaufnahme der Lampe | Konzentration in µmol/ml | Einsatzfeld |
| bis 170 W | 0,3 bis 3,0 | Heim- bzw. Konsummarkt |
| 170 bis 300 W | 0,2 bis 2,0 | Geschäftsbereich |
| 300 bis 3000 W | 0,05 bis 1,0 | Professionelle Großbildprojektion |
Claims (19)
- Gleichstrombogenlampe mit einer Füllung aus zumindest folgenden Bestandteilen:einem Zündgas,Quecksilber undeinem Halogen, gekennzeichnet durch den zusätzlichen Bestandteil:Cadmium und/oder Zink.
- Lampe nach Anspruch 1 mit dem Füllungsbestandteil Yttrium.
- Lampe nach Anspruch 1 oder 2 mit dem Füllungsbestandteil Lithium.
- Lampe nach einem der vorstehenden Ansprüche mit dem Füllungsbestandteil Indium.
- Lampe nach einem der vorstehenden Ansprüche mit einem Seltenerdmetall, insbesondere Dysprosium, als Füllungsbestandteil.
- Lampe nach einem der vorstehenden Ansprüche mit dem Füllungsbestandteil Thallium.
- Lampe nach einem der vorstehenden Ansprüche, bei der das Halogen in Form von Jod und/oder Brom vorliegt.
- Lampe nach einem der vorstehenden Ansprüche, wobei die Gesamtkonzentration für Cd bzw. Zn in folgendem Bereich liegt: 0,05 bis 3,0 µmol pro ml Volumen des Lampengefäßes.
- Lampe nach Anspruch 8, wobei in Abhängigkeit von der elektrischen Leistungsaufnahme folgende Konzentrationsbereiche gelten:
Leistungsaufnahme der Lampe Konzentration in µmol/ml bis 170 W 0,3 bis 3,0 170 bis 300 W 0,2 bis 2,0 300 bis 3000 W 0,05 bis 1,0 - Lampe nach einem der vorstehenden Ansprüche mit einem einseitigen Wärmestaubelag.
- Lampe nach einem der vorstehenden Ansprüche mit einem bezüglich Ebenen (1) senkrecht zu einer Lampenlängsachse (2) dergestalt asymmetrisch geformten Kolben, daß die Kolbeninnenwand (3) um die Anode (4) herum weiter ist als um die Kathode (5).
- Lampe nach einem der vorstehenden Ansprüche als Kurzbogenlampe.
- Lampe nach Anspruch 12, bei der eine auf die Bogenlänge (6) bezogene spezifische Leistung größer als 80 W/mm ist.
- Lampe nach einem der Ansprüche 11 - 13, bei der das Verhältnis zwischen einer anodenseitigen Längsschnitt-Halbfläche und einer kathodenseitigen Längsschnitt-Halbfläche größer als 1,1 ist.
- Lampe nach Anspruch 14, bei der das Verhältnis kleiner als 1,5 ist.
- Lampe nach einem der Ansprüche 11 - 15, bei der ein anodenseitiger Längsschnitt-Krümmungsradius (8) kleiner als ein kathodenseitiger Längsschnitt-Krümmungsradius (9) ist.
- Lampe nach Anspruch 16, bei der der anodenseitige Längsschnitt-Krümmungsradius (8) 50% bis 80% des kathodenseitigen Längsschnitt-Krümmungsradius (9) beträgt.
- Lampe nach einem der vorstehenden Ansprüche mit horizontal verlaufender Lampenlängsachse (2).
- Projektionsvorrichtung mit einer Projektionslampe nach einem der vorstehenden Ansprüche.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00117488A EP1069594B1 (de) | 1997-04-04 | 1998-03-09 | Gleichstrombogenlampe |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19714009A DE19714009A1 (de) | 1997-04-04 | 1997-04-04 | Gleichstrombogenlampe |
| DE19714009 | 1997-04-04 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00117488A Division EP1069594B1 (de) | 1997-04-04 | 1998-03-09 | Gleichstrombogenlampe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0869537A1 true EP0869537A1 (de) | 1998-10-07 |
| EP0869537B1 EP0869537B1 (de) | 2002-12-04 |
Family
ID=7825485
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00117488A Expired - Lifetime EP1069594B1 (de) | 1997-04-04 | 1998-03-09 | Gleichstrombogenlampe |
| EP98104179A Expired - Lifetime EP0869537B1 (de) | 1997-04-04 | 1998-03-09 | Gleichstrombogenlampe |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00117488A Expired - Lifetime EP1069594B1 (de) | 1997-04-04 | 1998-03-09 | Gleichstrombogenlampe |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6051929A (de) |
| EP (2) | EP1069594B1 (de) |
| JP (1) | JPH10283992A (de) |
| DE (3) | DE19714009A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001035444A1 (en) * | 1999-11-11 | 2001-05-17 | Koninklijke Philips Electronics N.V. | High-pressure discharge lamp |
| JP4042605B2 (ja) * | 2003-03-31 | 2008-02-06 | ウシオ電機株式会社 | キセノンランプ |
| US7759849B2 (en) | 2004-10-18 | 2010-07-20 | Heraeus Noblelight Ltd. | High-power discharge lamp |
| DE102005017371A1 (de) * | 2005-04-14 | 2007-01-11 | Heraeus Noblelight Limited, Milton | Hochleistungsentladungslampe |
| JP5304425B2 (ja) * | 2009-05-12 | 2013-10-02 | ウシオ電機株式会社 | 紫外線放射放電ランプ |
| DE102010039572A1 (de) * | 2010-08-20 | 2012-02-23 | Osram Ag | Gleichstrom-Entladungslampe mit asymmetrischem Kolben |
| JP2013232311A (ja) * | 2012-04-27 | 2013-11-14 | Iwasaki Electric Co Ltd | メタルハライドランプ |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB600495A (en) * | 1945-09-24 | 1948-04-09 | Gen Electric Co Ltd | Improvements in and relating to high pressure metal vapour electric discharge lamps |
| GB689962A (en) * | 1948-04-02 | 1953-04-08 | Gen Electric Co Ltd | Improvements in or relating to high pressure electric discharge lamps |
| US2965790A (en) * | 1949-08-20 | 1960-12-20 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | High pressure gas lamp |
| FR1254794A (fr) * | 1960-04-22 | 1961-02-24 | Licentia Gmbh | Lampe à haute pression |
| EP0220633A1 (de) * | 1985-10-25 | 1987-05-06 | General Electric Company | Asymmetrische Bogenkammer für eine Entladungslampe |
| US4935668A (en) * | 1988-02-18 | 1990-06-19 | General Electric Company | Metal halide lamp having vacuum shroud for improved performance |
| EP0623945A2 (de) * | 1993-05-07 | 1994-11-09 | Ushiodenki Kabushiki Kaisha | Entladungslampe |
| EP0641015A2 (de) * | 1993-08-03 | 1995-03-01 | Ushiodenki Kabushiki Kaisha | Cadmiumentladungslampe |
| EP0678898A2 (de) * | 1994-04-20 | 1995-10-25 | Ushiodenki Kabushiki Kaisha | Metallhalogenidlampe |
| EP0714118A1 (de) * | 1994-11-25 | 1996-05-29 | Ushiodenki Kabushiki Kaisha | Metallhalogenidlampe vom Kurz-Bogen Typ |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE288229C (de) * | ||||
| DE902528C (de) * | 1935-11-19 | 1954-01-25 | Ulrich W Doering | Elektrische Hochdruckentladungsleuchtroehre |
| GB1337134A (en) * | 1970-01-26 | 1973-11-14 | Gen Electric | Metal halide lamp |
| NL7403204A (nl) * | 1974-03-11 | 1975-09-15 | Philips Nv | Elektrische lamp. |
| NL184713C (nl) * | 1978-12-28 | 1989-10-02 | Mitsubishi Electric Corp | Metaaldampontladingslamp. |
| US4360756A (en) * | 1979-11-13 | 1982-11-23 | General Electric Company | Metal halide lamp containing ThI4 with added elemental cadmium or zinc |
| DE3044184A1 (de) * | 1980-11-24 | 1982-06-16 | Mutzhas Maximilian F | Vorrichtung zur phototherapeutischen behandlung der hyperbilirubinaemie |
| DE3208647A1 (de) * | 1982-03-10 | 1983-09-22 | Patra Patent Treuhand | Quecksilberdampf-hochdruckentladungslampe |
| DE3506295A1 (de) * | 1985-02-22 | 1986-08-28 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Kompakte hochdruckentladungslampe |
| DE3716485C1 (de) * | 1987-05-16 | 1988-11-24 | Heraeus Gmbh W C | Xenon-Kurzbogen-Entladungslampe |
| JP3077538B2 (ja) * | 1994-11-29 | 2000-08-14 | ウシオ電機株式会社 | ショートアーク型水銀ランプ |
-
1997
- 1997-04-04 DE DE19714009A patent/DE19714009A1/de not_active Withdrawn
-
1998
- 1998-03-09 EP EP00117488A patent/EP1069594B1/de not_active Expired - Lifetime
- 1998-03-09 EP EP98104179A patent/EP0869537B1/de not_active Expired - Lifetime
- 1998-03-09 DE DE59806489T patent/DE59806489D1/de not_active Expired - Fee Related
- 1998-03-09 DE DE59805855T patent/DE59805855D1/de not_active Expired - Fee Related
- 1998-03-12 US US09/041,511 patent/US6051929A/en not_active Expired - Fee Related
- 1998-03-31 JP JP10103340A patent/JPH10283992A/ja not_active Abandoned
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB600495A (en) * | 1945-09-24 | 1948-04-09 | Gen Electric Co Ltd | Improvements in and relating to high pressure metal vapour electric discharge lamps |
| GB689962A (en) * | 1948-04-02 | 1953-04-08 | Gen Electric Co Ltd | Improvements in or relating to high pressure electric discharge lamps |
| US2965790A (en) * | 1949-08-20 | 1960-12-20 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | High pressure gas lamp |
| FR1254794A (fr) * | 1960-04-22 | 1961-02-24 | Licentia Gmbh | Lampe à haute pression |
| EP0220633A1 (de) * | 1985-10-25 | 1987-05-06 | General Electric Company | Asymmetrische Bogenkammer für eine Entladungslampe |
| US4935668A (en) * | 1988-02-18 | 1990-06-19 | General Electric Company | Metal halide lamp having vacuum shroud for improved performance |
| EP0623945A2 (de) * | 1993-05-07 | 1994-11-09 | Ushiodenki Kabushiki Kaisha | Entladungslampe |
| EP0641015A2 (de) * | 1993-08-03 | 1995-03-01 | Ushiodenki Kabushiki Kaisha | Cadmiumentladungslampe |
| EP0678898A2 (de) * | 1994-04-20 | 1995-10-25 | Ushiodenki Kabushiki Kaisha | Metallhalogenidlampe |
| EP0714118A1 (de) * | 1994-11-25 | 1996-05-29 | Ushiodenki Kabushiki Kaisha | Metallhalogenidlampe vom Kurz-Bogen Typ |
Also Published As
| Publication number | Publication date |
|---|---|
| US6051929A (en) | 2000-04-18 |
| DE59805855D1 (de) | 2002-11-07 |
| DE19714009A1 (de) | 1998-10-08 |
| EP1069594B1 (de) | 2002-10-02 |
| DE59806489D1 (de) | 2003-01-16 |
| EP1069594A3 (de) | 2001-03-21 |
| EP0869537B1 (de) | 2002-12-04 |
| EP1069594A2 (de) | 2001-01-17 |
| JPH10283992A (ja) | 1998-10-23 |
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