DE69312299D1 - Hochdruckentladungslampe mit keramischer Entladungsröhre, dafür geeigneter keramischer Körper und Verfahren zu seiner Herstellung - Google Patents
Hochdruckentladungslampe mit keramischer Entladungsröhre, dafür geeigneter keramischer Körper und Verfahren zu seiner HerstellungInfo
- Publication number
- DE69312299D1 DE69312299D1 DE69312299T DE69312299T DE69312299D1 DE 69312299 D1 DE69312299 D1 DE 69312299D1 DE 69312299 T DE69312299 T DE 69312299T DE 69312299 T DE69312299 T DE 69312299T DE 69312299 D1 DE69312299 D1 DE 69312299D1
- Authority
- DE
- Germany
- Prior art keywords
- ceramic
- production
- discharge lamp
- pressure discharge
- discharge tube
- 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.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
- C04B35/115—Translucent or transparent products
-
- 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
- H01J61/302—Vessels; Containers characterised by the material of the vessel
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
- C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
- C04B2235/3246—Stabilised zirconias, e.g. YSZ or cerium stabilised zirconia
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/442—Carbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/443—Nitrates or nitrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/449—Organic acids, e.g. EDTA, citrate, acetate, oxalate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6581—Total pressure below 1 atmosphere, e.g. vacuum
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6582—Hydrogen containing atmosphere
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/661—Multi-step sintering
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Discharge Lamp (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93119959A EP0657399B1 (de) | 1993-12-10 | 1993-12-10 | Hochdruckentladungslampe mit keramischer Entladungsröhre, dafür geeigneter keramischer Körper und Verfahren zu seiner Herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69312299D1 true DE69312299D1 (de) | 1997-08-21 |
DE69312299T2 DE69312299T2 (de) | 1998-01-15 |
Family
ID=8213478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69312299T Expired - Lifetime DE69312299T2 (de) | 1993-12-10 | 1993-12-10 | Hochdruckentladungslampe mit keramischer Entladungsröhre, dafür geeigneter keramischer Körper und Verfahren zu seiner Herstellung |
Country Status (7)
Country | Link |
---|---|
US (1) | US5625256A (de) |
EP (1) | EP0657399B1 (de) |
JP (1) | JP2780941B2 (de) |
CN (1) | CN1069442C (de) |
AT (1) | ATE155452T1 (de) |
DE (1) | DE69312299T2 (de) |
HU (1) | HU215321B (de) |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3507179B2 (ja) * | 1995-01-13 | 2004-03-15 | 日本碍子株式会社 | 高圧放電灯 |
US6083451A (en) * | 1995-04-18 | 2000-07-04 | Applied Materials, Inc. | Method of producing a polycrystalline alumina ceramic which is resistant to a fluorine-comprising plasma |
US5621275A (en) * | 1995-08-01 | 1997-04-15 | Osram Sylvania Inc. | Arc tube for electrodeless lamp |
US5682082A (en) * | 1996-07-29 | 1997-10-28 | Osram Sylvania Inc. | Translucent polycrystalline alumina and method of making same |
DE19943075A1 (de) * | 1999-09-03 | 2001-03-15 | Fraunhofer Ges Forschung | Poröse Aluminiumoxidstrukturen und Verfahren zu ihrer Herstellung |
JP4613408B2 (ja) | 1999-10-15 | 2011-01-19 | 日本碍子株式会社 | 高圧放電灯用発光管の製造方法 |
US6399528B1 (en) | 2000-09-01 | 2002-06-04 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Porous aluminum oxide structures and processes for their production |
US6639362B1 (en) * | 2000-11-06 | 2003-10-28 | General Electric Company | High pressure discharge lamp |
CN1289434C (zh) * | 2002-01-04 | 2006-12-13 | 皇家飞利浦电子股份有限公司 | 烧结体和电灯 |
US8198811B1 (en) | 2002-05-21 | 2012-06-12 | Imaging Systems Technology | Plasma-Disc PDP |
US7405516B1 (en) | 2004-04-26 | 2008-07-29 | Imaging Systems Technology | Plasma-shell PDP with organic luminescent substance |
US8198812B1 (en) | 2002-05-21 | 2012-06-12 | Imaging Systems Technology | Gas filled detector shell with dipole antenna |
US8513887B1 (en) | 2002-05-21 | 2013-08-20 | Imaging Systems Technology, Inc. | Plasma-dome article of manufacture |
US7932674B1 (en) | 2002-05-21 | 2011-04-26 | Imaging Systems Technology | Plasma-dome article of manufacture |
US7727040B1 (en) | 2002-05-21 | 2010-06-01 | Imaging Systems Technology | Process for manufacturing plasma-disc PDP |
AU2003280970A1 (en) * | 2002-07-10 | 2004-02-02 | Fraunhofer-Gesellschaft | Transparent ploycrystalline aluminium oxide |
US7253122B2 (en) * | 2002-08-28 | 2007-08-07 | Micron Technology, Inc. | Systems and methods for forming metal oxides using metal diketonates and/or ketoimines |
US7087481B2 (en) * | 2002-08-28 | 2006-08-08 | Micron Technology, Inc. | Systems and methods for forming metal oxides using metal compounds containing aminosilane ligands |
US6984592B2 (en) * | 2002-08-28 | 2006-01-10 | Micron Technology, Inc. | Systems and methods for forming metal-doped alumina |
US6844285B1 (en) | 2003-09-03 | 2005-01-18 | Osram Sylvania Inc. | Transparent polycrystalline yttrium aluminum garnet |
US7772773B1 (en) | 2003-11-13 | 2010-08-10 | Imaging Systems Technology | Electrode configurations for plasma-dome PDP |
JP4951842B2 (ja) * | 2004-02-25 | 2012-06-13 | パナソニック株式会社 | 高圧ナトリウムランプ |
US8129906B1 (en) | 2004-04-26 | 2012-03-06 | Imaging Systems Technology, Inc. | Lumino-shells |
US8339041B1 (en) | 2004-04-26 | 2012-12-25 | Imaging Systems Technology, Inc. | Plasma-shell gas discharge device with combined organic and inorganic luminescent substances |
US8368303B1 (en) | 2004-06-21 | 2013-02-05 | Imaging Systems Technology, Inc. | Gas discharge device with electrical conductive bonding material |
US8113898B1 (en) | 2004-06-21 | 2012-02-14 | Imaging Systems Technology, Inc. | Gas discharge device with electrical conductive bonding material |
WO2007001387A2 (en) * | 2004-10-01 | 2007-01-04 | Ceranova Corporation | Polycrystalline alumina articles and methods of manufacture |
US8951608B1 (en) | 2004-10-22 | 2015-02-10 | Imaging Systems Technology, Inc. | Aqueous manufacturing process and article |
US8299696B1 (en) | 2005-02-22 | 2012-10-30 | Imaging Systems Technology | Plasma-shell gas discharge device |
US7247591B2 (en) * | 2005-05-26 | 2007-07-24 | Osram Sylvania Inc. | Translucent PCA ceramic, ceramic discharge vessel, and method of making |
US7481963B2 (en) * | 2005-06-28 | 2009-01-27 | Osram Sylvania Inc. | Method of reducing magnesium loss during sintering of aluminum oxide articles |
US8618733B1 (en) | 2006-01-26 | 2013-12-31 | Imaging Systems Technology, Inc. | Electrode configurations for plasma-shell gas discharge device |
US7863815B1 (en) | 2006-01-26 | 2011-01-04 | Imaging Systems Technology | Electrode configurations for plasma-disc PDP |
US7535175B1 (en) | 2006-02-16 | 2009-05-19 | Imaging Systems Technology | Electrode configurations for plasma-dome PDP |
US8410695B1 (en) | 2006-02-16 | 2013-04-02 | Imaging Systems Technology | Gas discharge device incorporating gas-filled plasma-shell and method of manufacturing thereof |
US8035303B1 (en) | 2006-02-16 | 2011-10-11 | Imaging Systems Technology | Electrode configurations for gas discharge device |
US8278824B1 (en) | 2006-02-16 | 2012-10-02 | Imaging Systems Technology, Inc. | Gas discharge electrode configurations |
US7678725B2 (en) * | 2007-05-14 | 2010-03-16 | General Electric Company | Translucent polycrystalline alumina ceramic |
US20080283522A1 (en) * | 2007-05-14 | 2008-11-20 | Shuyl Qin | Translucent polycrystalline alumina ceramic |
DE102007032267B4 (de) * | 2007-07-11 | 2018-01-18 | Emcon Technologies Germany (Augsburg) Gmbh | Abgasanlagen-Rohr mit maßgeschneiderter Wandstärke |
US8029595B2 (en) * | 2008-06-02 | 2011-10-04 | Nitto Denko Corporation | Method and apparatus of producing nanoparticles using nebulized droplet |
JP5272658B2 (ja) * | 2008-10-31 | 2013-08-28 | 東ソー株式会社 | 高靭性で透光性のアルミナ焼結体及びその製造方法並びに用途 |
WO2010058745A1 (ja) * | 2008-11-18 | 2010-05-27 | 東ソー株式会社 | 高靭性且つ高透光性の着色アルミナ焼結体及びその製造方法並びに用途 |
US8123981B2 (en) * | 2009-02-19 | 2012-02-28 | Nitto Denko Corporation | Method of fabricating translucent phosphor ceramics |
US8137587B2 (en) | 2009-02-19 | 2012-03-20 | Nitto Denko Corporation | Method of manufacturing phosphor translucent ceramics and light emitting devices |
US9013102B1 (en) | 2009-05-23 | 2015-04-21 | Imaging Systems Technology, Inc. | Radiation detector with tiled substrates |
EP2438139B1 (de) * | 2009-06-01 | 2017-03-01 | Nitto Denko Corporation | Lumineszente keramik und lichtemittierendes element damit |
US8206672B2 (en) * | 2009-07-10 | 2012-06-26 | Nitto Denko Corporation | Production of phase-pure ceramic garnet particles |
EP2305621B1 (de) | 2009-09-09 | 2015-04-22 | NGK Insulators, Ltd. | Durchscheinender gesinterter Polykristallinkörper, Verfahren zu dessen Herstellung und Lichtbogen für Entladungslampe mit hoher Intensität |
JP5666001B2 (ja) | 2010-10-19 | 2015-02-04 | オスラム ゲーエムベーハーOSRAM GmbH | 高圧放電ランプのためのセラミック製の導入線 |
US20120306365A1 (en) * | 2011-06-06 | 2012-12-06 | General Electric Company | Polycrystalline transluscent alumina for high intensity discharge lamps |
WO2013054219A1 (en) * | 2011-10-11 | 2013-04-18 | Koninklijke Philips Electronics N.V. | Diffusive ceramic envelope |
US8482198B1 (en) | 2011-12-19 | 2013-07-09 | General Electric Company | High intensity discharge lamp with improved startability and performance |
CN102709148B (zh) * | 2012-06-06 | 2014-10-22 | 宁波泰格尔陶瓷有限公司 | 具有净化空气的氧化铝陶瓷电弧管及制造方法 |
JP6035682B2 (ja) * | 2013-04-19 | 2016-11-30 | 岩崎電気株式会社 | セラミックメタルハライドランプ用発光管の製造方法 |
US9287106B1 (en) | 2014-11-10 | 2016-03-15 | Corning Incorporated | Translucent alumina filaments and tape cast methods for making |
US11639312B2 (en) | 2015-06-16 | 2023-05-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Transparent ceramic as a component for fracture-resistant optical units |
JP5861853B1 (ja) * | 2015-08-25 | 2016-02-16 | 岩崎電気株式会社 | 高圧ナトリウムランプ |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1252851A (de) * | 1969-08-27 | 1971-11-10 | ||
US4285732A (en) * | 1980-03-11 | 1981-08-25 | General Electric Company | Alumina ceramic |
DE3174149D1 (en) * | 1980-12-20 | 1986-04-24 | Emi Plc Thorn | Discharge lamp arc tubes |
HU185242B (en) * | 1981-02-18 | 1984-12-28 | Egyesuelt Izzolampa | Method for producing light-passing alumina sintered bodies advantageously cylinder-symmetrical ones |
US4949010A (en) * | 1982-02-04 | 1990-08-14 | Tektronix, Inc. | X-ray attenuating ceramic materials |
US4580075A (en) * | 1982-11-26 | 1986-04-01 | General Electric Company | High pressure sodium lamp having improved coloring rendition |
US4567396A (en) * | 1982-11-26 | 1986-01-28 | General Electric Company | Increased efficacy high pressure sodium lamp yielded by increased wall temperature operation |
CA1207372A (en) * | 1982-11-26 | 1986-07-08 | General Electric Company | High pressure sodium lamp having improved efficacy |
US4762655A (en) * | 1985-11-27 | 1988-08-09 | Gte Laboratories Incorporated | Method of sintering translucent alumina |
US4797238A (en) * | 1985-11-27 | 1989-01-10 | Gte Laboratories Incorporated | Rapid-sintering of alumina |
DE3774594D1 (de) * | 1986-03-11 | 1992-01-02 | Philips Nv | Verbundkoerper. |
US5082809A (en) * | 1987-12-21 | 1992-01-21 | Kyocera Corporation | High-strength alumina sintered body and process for preparation thereof |
DE8907848U1 (de) * | 1989-06-27 | 1989-08-24 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De | |
DE4037721C2 (de) * | 1990-11-27 | 2003-02-13 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren zur Herstellung einer Natriumhochdrucklampe sowie dafür geeignete Vorrichtung |
DE69303414T2 (de) * | 1992-04-22 | 1997-01-23 | Sumitomo Chemical Co | Polykristalliner, lichtdurchlässiger Aluminiumoxidkörper und Verfahren zu seiner Herstellung |
US5426343A (en) * | 1992-09-16 | 1995-06-20 | Gte Products Corporation | Sealing members for alumina arc tubes and method of making the same |
US5403794A (en) * | 1994-04-14 | 1995-04-04 | Vesuvius Crucible Company | Alumina-zirconia refractory material and articles made therefrom |
-
1993
- 1993-12-10 AT AT93119959T patent/ATE155452T1/de not_active IP Right Cessation
- 1993-12-10 DE DE69312299T patent/DE69312299T2/de not_active Expired - Lifetime
- 1993-12-10 EP EP93119959A patent/EP0657399B1/de not_active Expired - Lifetime
-
1994
- 1994-11-29 US US08/346,424 patent/US5625256A/en not_active Expired - Lifetime
- 1994-12-07 CN CN94119859A patent/CN1069442C/zh not_active Expired - Lifetime
- 1994-12-09 HU HU9403538A patent/HU215321B/hu unknown
- 1994-12-09 JP JP6305855A patent/JP2780941B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0657399A1 (de) | 1995-06-14 |
CN1110003A (zh) | 1995-10-11 |
DE69312299T2 (de) | 1998-01-15 |
JP2780941B2 (ja) | 1998-07-30 |
JPH0817396A (ja) | 1996-01-19 |
HUT69828A (en) | 1995-09-28 |
ATE155452T1 (de) | 1997-08-15 |
EP0657399B1 (de) | 1997-07-16 |
CN1069442C (zh) | 2001-08-08 |
HU215321B (hu) | 1998-11-30 |
US5625256A (en) | 1997-04-29 |
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