US3617794A - Halogen lamp employing a quartz envelope provided with a colored layer - Google Patents

Halogen lamp employing a quartz envelope provided with a colored layer Download PDF

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Publication number
US3617794A
US3617794A US781966A US3617794DA US3617794A US 3617794 A US3617794 A US 3617794A US 781966 A US781966 A US 781966A US 3617794D A US3617794D A US 3617794DA US 3617794 A US3617794 A US 3617794A
Authority
US
United States
Prior art keywords
halogen lamp
quartz
luster
envelope
quartz envelope
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
Application number
US781966A
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English (en)
Inventor
Henricus Antonius Van Bakel
Riksterus Aguste Johann Meijer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Philips Corp
Original Assignee
US Philips Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3617794A publication Critical patent/US3617794A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K1/00Details
    • H01K1/28Envelopes; Vessels
    • H01K1/32Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/44Lustring

Definitions

  • Trifari ABSTRACT A colored halogen lamp having a quartz envelope that has been coated with a layer of luster lacquer, essentially consisting of metal salts of resin acids dissolved in ethereal oils. The coating is fired up to temperatures between 500C. and 600C. V
  • the invention relates to a halogen lamp employing a quartz envelope provided with acolored layer. Quartz is to be understood in this connection to include a glass having a content of silica of more than 96 percent which is obtained from a borosilicate glass from which, after phase separation, the boric acid has been removed substantially by leaching and is then sintered.
  • a halogen lamp is to be understood to mean herein a lamp having a quartz envelope with a comparatively small capacity, the tungsten filament in the envelope being surrounded by an atmosphere which, in addition to a rare gas and/or nitrogen, contains a reactive transport gas, for example, iodine, bromine together with hydrogen, or chlorine together with hydrogen, as such or in the form of a compound, the temperature of the wall of the envelope during operation increasing to a value at which tungsten-halogen compounds formed in the lamp can not condense.
  • a reactive transport gas for example, iodine, bromine together with hydrogen, or chlorine together with hydrogen
  • the temperature of the wall of the envelope during operation of the lamp lies between approximately 500 C.
  • the desired colored light can be obtained by using light filters.
  • this meets with difficulties when used in combination with halogen lamps, which drawbacks are associated with the large quantity of energy which is irradiated by these lamps in the form of light and heat.
  • the envelope of a halogen lamp consists of quartz provided with a fired colored luster lacquer layer.
  • Such a layer is obtained by providing on the quartz envelope of a halogen lamp a layer of a luster lacquer and then firing it, preferably at a temperature which lies above the temperature which the wall of the envelope reaches during operation.
  • Luster lacquers are solutions of metal salts of resin acids in ethereal oils. Upon baking, metal oxide skins in a thickness in the order of mm. are formed. They are used for decorating and adorning articles of porcelain, glass, and ceramic material. It has been found that the methods and the luster lacquers used for this purpose can excellently be used for coloring quartz envelopes of halogen lamps.
  • a yellow luster lacquer may be mentioned a lacquer which contains two parts of bismuth resinate in three parts of uranium resinate, dissolved in a volatile oil, for examples camphor oil,-cedar oil or rosemary oil.
  • a volatile oil for examples camphor oil,-cedar oil or rosemary oil.
  • the composition of the commercially available luster lacquers is usually unknown and hard to establish.
  • nace at a temperature between 550 and 700 C.
  • a halogen lamp comprising a quartz envelope, an external coating on said envelope, said coating comprising a layer of fired yellow-colored luster lacquer essentially consisting of two parts of bismuth resinate and three parts of uranium resinate dissolved in volatile oil.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)
US781966A 1967-12-15 1968-12-06 Halogen lamp employing a quartz envelope provided with a colored layer Expired - Lifetime US3617794A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6717090A NL6717090A (es) 1967-12-15 1967-12-15

Publications (1)

Publication Number Publication Date
US3617794A true US3617794A (en) 1971-11-02

Family

ID=19801997

Family Applications (1)

Application Number Title Priority Date Filing Date
US781966A Expired - Lifetime US3617794A (en) 1967-12-15 1968-12-06 Halogen lamp employing a quartz envelope provided with a colored layer

Country Status (9)

Country Link
US (1) US3617794A (es)
AT (1) AT284957B (es)
BE (1) BE725484A (es)
CH (1) CH483723A (es)
DE (1) DE1810656A1 (es)
ES (1) ES361383A1 (es)
FR (1) FR1599229A (es)
GB (1) GB1193400A (es)
NL (1) NL6717090A (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847583A (en) * 1969-08-13 1974-11-12 Jenaer Glaswerk Schott & Gen Process for the manufacture of multi-component substances
EP0037981A1 (de) * 1980-04-16 1981-10-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Quecksilberdampf-Hochdruckentladungslampe mit Aussenkolben
US4869927A (en) * 1984-09-28 1989-09-26 Kabushiki Kaisha Toshiba Light diffusive coating, a method of forming the coating and a lamp having the coating
US5252887A (en) * 1992-01-21 1993-10-12 General Electric Company Environmentally safe pink lamp
US5940014A (en) * 1996-06-11 1999-08-17 Hartt; Joseph R. Vehicular approach guidance method and system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066040A (en) * 1959-01-26 1962-11-27 Duro Test Corp Method of producing crystal pattern and the product
US3094642A (en) * 1960-06-17 1963-06-18 Sylvania Electric Prod Coated lamp
US3237043A (en) * 1961-07-26 1966-02-22 Philips Corp Gas-filled electric incandescent lamp
US3263113A (en) * 1961-07-26 1966-07-26 Philips Corp Tungsten filament lamp comprising hexafluoride gas at partial pressure not exceeding 10 torrs
US3420694A (en) * 1966-02-01 1969-01-07 Gen Electric Plural coated transparent colored lamp and method of forming same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3066040A (en) * 1959-01-26 1962-11-27 Duro Test Corp Method of producing crystal pattern and the product
US3094642A (en) * 1960-06-17 1963-06-18 Sylvania Electric Prod Coated lamp
US3237043A (en) * 1961-07-26 1966-02-22 Philips Corp Gas-filled electric incandescent lamp
US3263113A (en) * 1961-07-26 1966-07-26 Philips Corp Tungsten filament lamp comprising hexafluoride gas at partial pressure not exceeding 10 torrs
US3420694A (en) * 1966-02-01 1969-01-07 Gen Electric Plural coated transparent colored lamp and method of forming same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3847583A (en) * 1969-08-13 1974-11-12 Jenaer Glaswerk Schott & Gen Process for the manufacture of multi-component substances
EP0037981A1 (de) * 1980-04-16 1981-10-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Quecksilberdampf-Hochdruckentladungslampe mit Aussenkolben
US4393331A (en) * 1980-04-16 1983-07-12 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh High pressure mercury vapor discharge lamp with outer bulb
US4869927A (en) * 1984-09-28 1989-09-26 Kabushiki Kaisha Toshiba Light diffusive coating, a method of forming the coating and a lamp having the coating
US5252887A (en) * 1992-01-21 1993-10-12 General Electric Company Environmentally safe pink lamp
US5940014A (en) * 1996-06-11 1999-08-17 Hartt; Joseph R. Vehicular approach guidance method and system

Also Published As

Publication number Publication date
AT284957B (de) 1970-10-12
CH483723A (de) 1969-12-31
ES361383A1 (es) 1970-09-16
DE1810656A1 (de) 1969-08-28
GB1193400A (en) 1970-05-28
FR1599229A (es) 1970-07-15
NL6717090A (es) 1969-06-17
BE725484A (es) 1969-06-13

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