DE1188201B - Incandescent lamp - Google Patents
Incandescent lampInfo
- Publication number
- DE1188201B DE1188201B DEU7863A DEU0007863A DE1188201B DE 1188201 B DE1188201 B DE 1188201B DE U7863 A DEU7863 A DE U7863A DE U0007863 A DEU0007863 A DE U0007863A DE 1188201 B DE1188201 B DE 1188201B
- Authority
- DE
- Germany
- Prior art keywords
- gas filling
- incandescent lamp
- lamp according
- halogen
- halogens
- 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
- 239000007789 gas Substances 0.000 claims description 17
- 229910052736 halogen Inorganic materials 0.000 claims description 13
- 150000002367 halogens Chemical class 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 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
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims description 3
- 229910003468 tantalcarbide Inorganic materials 0.000 claims description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 239000011630 iodine Substances 0.000 claims description 2
- 229910001507 metal halide Inorganic materials 0.000 claims description 2
- 150000005309 metal halides Chemical class 0.000 claims description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 6
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- HJUGFYREWKUQJT-UHFFFAOYSA-N tetrabromomethane Chemical compound BrC(Br)(Br)Br HJUGFYREWKUQJT-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- GATVIKZLVQHOMN-UHFFFAOYSA-N Chlorodibromomethane Chemical compound ClC(Br)Br GATVIKZLVQHOMN-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- MUBKMWFYVHYZAI-UHFFFAOYSA-N [Al].[Cu].[Zn] Chemical compound [Al].[Cu].[Zn] MUBKMWFYVHYZAI-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- XNNQFQFUQLJSQT-UHFFFAOYSA-N bromo(trichloro)methane Chemical compound ClC(Cl)(Cl)Br XNNQFQFUQLJSQT-UHFFFAOYSA-N 0.000 description 1
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- HCFPRFJJTHMING-UHFFFAOYSA-N ethane-1,2-diamine;hydron;chloride Chemical compound [Cl-].NCC[NH3+] HCFPRFJJTHMING-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- -1 hydrogen halides Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 229910000043 hydrogen iodide Inorganic materials 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- HVTICUPFWKNHNG-UHFFFAOYSA-N iodoethane Chemical compound CCI HVTICUPFWKNHNG-UHFFFAOYSA-N 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- NQMRYBIKMRVZLB-UHFFFAOYSA-N methylamine hydrochloride Chemical compound [Cl-].[NH3+]C NQMRYBIKMRVZLB-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- SFLKZLQXODICBP-UHFFFAOYSA-N trichloro(iodo)methane Chemical compound ClC(Cl)(Cl)I SFLKZLQXODICBP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
- H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Discharge Lamp (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Carbon And Carbon Compounds (AREA)
Description
BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. Cl.:Int. Cl .:
HOIkHOIk
Deutsche KL: 2lf-40German KL: 2lf-40
Nummer: 1188 201Number: 1188 201
Aktenzeichen: U 7863 VIII c/21 £File number: U 7863 VIII c / 21 £
Anmeldetag: 10. März 1961 Filing date: March 10, 1961
Auslegetag: 4. März 1965Opening day: March 4, 1965
Glühlampen mit einem im wesentlichen aus GlühlampeIncandescent lamps with an essentially incandescent lamp
Tantalkarbid bestehenden Glühfaden sind bekannt.Tantalum carbide existing filaments are known.
Bei diesen Lampen ist der Glühfaden innerhalb einer In these lamps, the filament is within one
Wasserstoff, Kohlenstoff und Halogen enthaltenden Gasfüllung angeordnet.Hydrogen, carbon and halogen-containing gas filling arranged.
Die Erfindung betrifft Glühlampen dieser Art. Sie ist dadurch gekennzeichnet, daß die Gasfüllung mindestens zwei Halogene enthält, von denen das eine Jod oder Brom, das andere Chlor oder Fluor ist. Gegebenenfalls kann die Gasfüllung noch ein inertes Gas niedriger Wärmeleitfähigkeit enthalten.The invention relates to incandescent lamps of this type. It is characterized in that the gas filling Contains at least two halogens, one of which is iodine or bromine, the other chlorine or fluorine is. The gas filling can optionally also contain an inert gas of low thermal conductivity.
Es wurde ferner gefunden, daß es vorteilhaft ist, wenn die Gasfüllung die Halogene im Volumenüberschuß gegenüber dem Kohlenstoff enthält. Ebenso ist es vorteilhaft, wenn innerhalb der Gasfüllung der Wasserstoff im Volumenüberschuß gegenüber den Halogenen enthalten ist.It has also been found that it is advantageous if the gas filling contains the halogens in excess volume compared to the carbon it contains. It is also advantageous if inside the gas filling the hydrogen is contained in excess volume compared to the halogens.
In vielen Fällen ist es zweckmäßig, als Quelle für mindestens ein Halogen ein Metallhalogenid zu verwenden.In many cases it is expedient to use a metal halide as the source of at least one halogen use.
Es empfiehlt sich, die den Glühfaden umgebene Gasfüllung praktisch frei von Sauerstoff zu halten; sie sollte weniger als 50 Teile Sauerstoff pro Million enthalten.It is advisable to keep the gas filling surrounding the filament practically free of oxygen; it should contain less than 50 parts per million oxygen.
Ist in der Gasfüllung ein aggressiver Bestandteil wie Fluor zugegen, so können die mit der Gasfüllung in Berührung stehenden Teile der Glühlampe in bekannter Weise mit einem gegen den Angriff schützenden Material überzogen oder beschichtet sein. Man kann z. B. auf die innere Oberfläche der Hülle Kalziumfluorid aufdampfen.If an aggressive component such as fluorine is present in the gas filling, those with the gas filling can parts of the incandescent lamp in contact with one another in a known manner against the attack protective material coated or coated. You can z. B. on the inner surface of the Vaporize the shell on calcium fluoride.
Der Druck der Gasfüllung während des Betriebes sollte möglichst so hoch sein, daß die Hülle ihn noch aushält. Hohe Drücke verlängern die Lebensdauer der Lampen.The pressure of the gas filling during operation should be as high as possible that the envelope still holds it endures. High pressures extend the life of the lamps.
Als Ausgangsmaterial für den Wasserstoff und den Kohlenstoff der Gasfüllung können Kohlenwasserstoffe, wie Äthan, Methan oder Äthylen, gegebenenfalls zusammen mit elementaren Wasserstoff verwendet werden. Als Quelle für die Halogene kommen außer den Elementen und den Halogenwasserstoffen, wie Chlorwasserstoff oder Jodwasserstoff, auch Halogene enthaltende organische Verbindungen, wie Kohlenstofftetrachlorid, Methyljodid, Methylbromid, Äthylendiaminhydrochlorid, Methylaminhydrochlorid, Äthylbromid, Äthyljodid, Benzolhexachlorid, Kohlenstofftetrachlorid, Kohlenstofftetrabromid, Tetrachloräthan, Tetrachloräthylen, Dibrommonochlormethan, Trichlormonobrommethan, Trichlormonojodmethan, in Betracht. Geeignete Halogenquellen in Form von Salzen sind z. B. die Halogenide von Rubidium, Kobalt, Zinn, Anmelder:Hydrocarbons, such as ethane, methane or ethylene, optionally used together with elemental hydrogen will. In addition to the elements and hydrogen halides, the source of the halogens such as hydrogen chloride or hydrogen iodide, also organic compounds containing halogens, such as carbon tetrachloride, methyl iodide, methyl bromide, ethylenediamine hydrochloride, methylamine hydrochloride, Ethyl bromide, ethyl iodide, benzene hexachloride, carbon tetrachloride, carbon tetrabromide, Tetrachloroethane, tetrachlorethylene, dibromomonochloromethane, trichloromonobromomethane, Trichloromonoiodomethane, into consideration. Suitable sources of halogen in the form of salts are z. B. the halides of rubidium, cobalt, tin, applicant:
Union Carbide Corporation, New York, N. Y.Union Carbide Corporation, New York, N.Y.
(V. St. A.)(V. St. A.)
Vertreter:Representative:
Dipl.-Ing. H. Görtz, Patentanwalt,Dipl.-Ing. H. Görtz, patent attorney,
Frankfurt/M., Schneckenhofstr. 27Frankfurt / M., Schneckenhofstr. 27
Als Erfinder benannt:
Hazel Mae Bryant, Cambridge, Mass.;
Dexter Parshall Cooper, Lexington, Mass.
(V. St. A.)Named as inventor:
Hazel Mae Bryant, Cambridge, Mass .;
Dexter Parshall Cooper, Lexington, Mass.
(V. St. A.)
Beanspruchte Priorität:
V. St. v. Amerika vom 11. März 1960
(14 253, 14254)Claimed priority:
V. St. v. America March 11, 1960
(14 253, 14254)
Silber, Cadmium, Aluminium, Kupfer, Zink, Quecksilber, Nickel oder Cer. Diese Stoffe können für sich oder im Gemisch miteinander verwendet werden.Silver, cadmium, aluminum, copper, zinc, mercury, nickel or cerium. These substances can be used for themselves or used in admixture with one another.
Als Zusatzmittel geeignete inerte Gase sind beispielsweise Argon, Krypton oder Xenon.Inert gases suitable as additives are, for example, argon, krypton or xenon.
Glühlampen nach der Erfindung haben überraschendenderweise eine längere Lebensdauer als die bekannte. Eine Glühlampe mit einem im wesentlichen aus Tantalkarbid bestehenden Glühfaden und einer Gasfüllung aus Wasserstoff und Kohlenstofftetrachlorid hat im Durchschnitt eine Lebensdauer von 10 Stunden. Verwendet man bei einer sonst gleichen Lampe eine Gasfüllung, die außer den obengenannten Bestandteilen noch geringe Mengen von Brom oder Jod enthält, so steigt die Lebensdauer im Durchschnitt auf 15 Stunden.Incandescent lamps according to the invention surprisingly have a longer service life than that acquaintance. An incandescent lamp with a filament consisting essentially of tantalum carbide and a gas filling made of hydrogen and carbon tetrachloride has an average service life of 10 hours. If you use a gas filling with an otherwise identical lamp, the The above-mentioned components still contain small amounts of bromine or iodine, the service life increases 15 hours on average.
Claims (5)
durch gekennzeichnet, daß die Gasfüllung Was- Britische Patentschrift Nr. 821 465. 4. Incandescent lamp according to claims 1 to 3, there- considered publications:
characterized in that the gas filling was British Patent No. 821,465.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1425360A | 1960-03-11 | 1960-03-11 | |
| US14254A US3022439A (en) | 1960-03-11 | 1960-03-11 | Electric lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1188201B true DE1188201B (en) | 1965-03-04 |
Family
ID=26685855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEU7863A Pending DE1188201B (en) | 1960-03-11 | 1961-03-10 | Incandescent lamp |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3022439A (en) |
| BE (1) | BE600661A (en) |
| DE (1) | DE1188201B (en) |
| FR (1) | FR1280509A (en) |
| GB (1) | GB900200A (en) |
| NL (1) | NL262249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0239005A3 (en) * | 1986-03-24 | 1989-10-25 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Incandescent halogen lamp |
| DE10334365A1 (en) * | 2003-05-27 | 2005-04-14 | Ip2H Ag | Light source and a method for providing a transport function for a chemical element in a light source |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3237043A (en) * | 1961-07-26 | 1966-02-22 | Philips Corp | Gas-filled electric incandescent lamp |
| DE1177248B (en) * | 1962-08-22 | 1964-09-03 | Patra Patent Treuhand | Electric high pressure vapor discharge lamp with a color-correcting additional filling |
| NL6407446A (en) * | 1964-07-01 | 1966-01-03 | ||
| US3441777A (en) * | 1966-06-01 | 1969-04-29 | Gen Telephone & Elect | Elements for incandescent devices |
| NL135014C (en) * | 1966-09-20 | |||
| US3521110A (en) * | 1967-09-25 | 1970-07-21 | Gen Electric | Mercury-metallic halide vapor lamp with regenerative cycle |
| JPS4826632B1 (en) * | 1968-12-27 | 1973-08-13 | ||
| GB1318711A (en) * | 1970-08-11 | 1973-05-31 | Thorn Electrical Ind Ltd | Production of tungsten halogen lamps |
| NL7108536A (en) * | 1971-06-21 | 1972-12-27 | ||
| US3983513A (en) * | 1973-10-18 | 1976-09-28 | Westinghouse Electric Corporation | Incandescent lamp having a halogen-containing atmosphere and an integral reflector of non-reactive specular metal |
| US4078188A (en) | 1976-03-30 | 1978-03-07 | Westinghouse Electric Corporation | Regenerative-cycle incandescent lamp containing a dual-additive |
| DE3725059A1 (en) * | 1987-07-29 | 1989-02-09 | Roehm Gmbh | POLYMER FLOW IMPROVERS FOR MEDIUM DISTILLATES |
| TWI270918B (en) * | 2003-05-27 | 2007-01-11 | Ip2H Ag | Light source and method for supplying a transport function to a chemical element in a light source |
| DE10358262A1 (en) * | 2003-12-01 | 2005-09-01 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Light bulb with carbon cycle process |
| DE102008061776A1 (en) * | 2008-12-11 | 2010-06-17 | Osram Gesellschaft mit beschränkter Haftung | halogen bulb |
| JP5989984B2 (en) | 2011-10-27 | 2016-09-07 | スタンレー電気株式会社 | Incandescent light bulb |
| JP5975816B2 (en) | 2012-09-21 | 2016-08-23 | スタンレー電気株式会社 | Incandescent light bulb, manufacturing method thereof, and filament |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB821465A (en) * | 1956-01-16 | 1959-10-07 | Union Carbide Corp | Improved electric incandescent lamps |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US497038A (en) * | 1893-05-09 | Electric lamp | ||
| US1655488A (en) * | 1925-03-18 | 1928-01-10 | Gen Electric | Electric incandescent lamp |
| US2596469A (en) * | 1951-02-27 | 1952-05-13 | Polaroid Corp | Tantalum carbide filament electric lamp containing hydrogen-volatile hydrocarbon mixture |
| US2928977A (en) * | 1958-12-19 | 1960-03-15 | Gen Electric | Incandescent lamp |
-
0
- NL NL262249D patent/NL262249A/xx unknown
-
1960
- 1960-03-11 US US14254A patent/US3022439A/en not_active Expired - Lifetime
-
1961
- 1961-02-22 FR FR853556A patent/FR1280509A/en not_active Expired
- 1961-02-27 BE BE600661A patent/BE600661A/en unknown
- 1961-03-03 GB GB7822/61A patent/GB900200A/en not_active Expired
- 1961-03-10 DE DEU7863A patent/DE1188201B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB821465A (en) * | 1956-01-16 | 1959-10-07 | Union Carbide Corp | Improved electric incandescent lamps |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0239005A3 (en) * | 1986-03-24 | 1989-10-25 | Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh | Incandescent halogen lamp |
| DE10334365A1 (en) * | 2003-05-27 | 2005-04-14 | Ip2H Ag | Light source and a method for providing a transport function for a chemical element in a light source |
Also Published As
| Publication number | Publication date |
|---|---|
| US3022439A (en) | 1962-02-20 |
| GB900200A (en) | 1962-07-04 |
| BE600661A (en) | 1961-06-16 |
| FR1280509A (en) | 1961-12-29 |
| NL262249A (en) |
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