US3927343A - Wall-stabilised high-pressure mercury vapour discharge lamp containing iodide - Google Patents

Wall-stabilised high-pressure mercury vapour discharge lamp containing iodide Download PDF

Info

Publication number
US3927343A
US3927343A US127256A US12725671A US3927343A US 3927343 A US3927343 A US 3927343A US 127256 A US127256 A US 127256A US 12725671 A US12725671 A US 12725671A US 3927343 A US3927343 A US 3927343A
Authority
US
United States
Prior art keywords
wall
pressure mercury
discharge lamp
lamp
discharge space
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
US127256A
Other languages
English (en)
Inventor
Louis Benjamin Beijer
Antonius Jozephus Ger Driessen
Cornelis Adrianus Joann Jacobs
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 US3927343A publication Critical patent/US3927343A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps

Definitions

  • Discharge lamps of the kind described above have been known for several years and are commonly used. As compared with the high-pressure mercury vapour discharge lamps without iodides they have the advantage of a higher light output and render a considerably better colour rendition possible. This resides in the fact that strong radiation is emitted which originates from the added elements or iodides.
  • the iodine contained in the discharge space is necessary inter alia to introduce into discharge those elements which at the normal operating temperature of such lamps do not have a sufficient vapour pressure to be able to perform their function.
  • the iodides of these elements readily evaporate at the normal operating temperature and in the discharge they are split up into iodine and the element in a gaseous form, which element then emits its characteristic radiation after excitation. The iodine does not substantially emit radiation.

Landscapes

  • Discharge Lamp (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
US127256A 1970-04-13 1971-03-23 Wall-stabilised high-pressure mercury vapour discharge lamp containing iodide Expired - Lifetime US3927343A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7005294A NL7005294A (https=) 1970-04-13 1970-04-13

Publications (1)

Publication Number Publication Date
US3927343A true US3927343A (en) 1975-12-16

Family

ID=19809841

Family Applications (1)

Application Number Title Priority Date Filing Date
US127256A Expired - Lifetime US3927343A (en) 1970-04-13 1971-03-23 Wall-stabilised high-pressure mercury vapour discharge lamp containing iodide

Country Status (7)

Country Link
US (1) US3927343A (https=)
BE (1) BE765693A (https=)
CA (1) CA925147A (https=)
DE (1) DE7016628U (https=)
FR (1) FR2089504A5 (https=)
GB (1) GB1280619A (https=)
NL (1) NL7005294A (https=)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD262405S (en) 1979-01-02 1981-12-22 U.S. Philips Corporation Lamp base
EP0159620A3 (en) * 1984-04-19 1987-03-11 General Electric Company Improved metal halide lamp and lighting systems particularly suitable for architectural lighting
EP0219137A3 (en) * 1985-10-18 1990-01-31 Kabushiki Kaisha Toshiba Headlight for vehicle
EP0828285A3 (en) * 1996-09-06 1998-06-03 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and temperature control system therefor
US6218789B1 (en) * 1996-09-06 2001-04-17 Matsushita Electric Industrial Co., Ltd. Metal halide lamp having specified relation between electrode distance and operation voltage, and operating at acoustic standing wave frequency
EP1507276A3 (en) * 2003-08-15 2005-10-12 Osram Sylvania Inc. Mount assembly for an arc tube in discharge lamps

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502509A (nl) * 1985-09-13 1987-04-01 Philips Nv Hogedrukkwikdampontladingslamp.
GB8707670D0 (en) * 1987-03-31 1987-05-07 Emi Plc Thorn Ceramic metal halide lamps

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240353A (en) * 1938-03-11 1941-04-29 Gen Electric High-pressure metal-vapor electric discharge lamp
US2659833A (en) * 1949-11-09 1953-11-17 Hanovia Chemical & Mfg Co Ultraviolet vapor electric discharge device
US3450925A (en) * 1967-03-17 1969-06-17 Gen Electric Mercury bismuth halide photochemical arc lamp light sources

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240353A (en) * 1938-03-11 1941-04-29 Gen Electric High-pressure metal-vapor electric discharge lamp
US2659833A (en) * 1949-11-09 1953-11-17 Hanovia Chemical & Mfg Co Ultraviolet vapor electric discharge device
US3450925A (en) * 1967-03-17 1969-06-17 Gen Electric Mercury bismuth halide photochemical arc lamp light sources

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD262405S (en) 1979-01-02 1981-12-22 U.S. Philips Corporation Lamp base
EP0159620A3 (en) * 1984-04-19 1987-03-11 General Electric Company Improved metal halide lamp and lighting systems particularly suitable for architectural lighting
EP0219137A3 (en) * 1985-10-18 1990-01-31 Kabushiki Kaisha Toshiba Headlight for vehicle
EP0828285A3 (en) * 1996-09-06 1998-06-03 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and temperature control system therefor
US6084351A (en) * 1996-09-06 2000-07-04 Matsushita Electric Industrial Co., Ltd. Metal halide lamp and temperature control system therefor
US6218789B1 (en) * 1996-09-06 2001-04-17 Matsushita Electric Industrial Co., Ltd. Metal halide lamp having specified relation between electrode distance and operation voltage, and operating at acoustic standing wave frequency
EP1507276A3 (en) * 2003-08-15 2005-10-12 Osram Sylvania Inc. Mount assembly for an arc tube in discharge lamps

Also Published As

Publication number Publication date
NL7005294A (https=) 1971-10-15
FR2089504A5 (https=) 1972-01-07
BE765693A (fr) 1971-10-13
CA925147A (en) 1973-04-24
DE7016628U (de) 1970-08-13
GB1280619A (en) 1972-07-05

Similar Documents

Publication Publication Date Title
US3852630A (en) Halogen containing high-pressure mercury vapor discharge lamp
US5109181A (en) High-pressure mercury vapor discharge lamp
US3979624A (en) High-efficiency discharge lamp which incorporates a small molar excess of alkali metal halide as compared to scandium halide
US4709184A (en) Low wattage metal halide lamp
US3234421A (en) Metallic halide electric discharge lamps
US3654506A (en) High pressure mercury vapor discharge lamp with metal halide additive
US3351798A (en) Scandium halide discharge lamp
US3753018A (en) Wall-stabilized high-pressure mercury and metal iodide vapour discharge lamp with outer envelope
US3764843A (en) High-pressure gas discharge lamp containing germanium and selenium
GB1305065A (https=)
US3781586A (en) Long lifetime mercury-metal halide discharge lamps
US4757236A (en) High pressure metal halide arc lamp with xenon buffer gas
US3911308A (en) High-pressure metal-vapor discharge lamp
US3927343A (en) Wall-stabilised high-pressure mercury vapour discharge lamp containing iodide
US3639801A (en) High-pressure mercury vapor iodide discharge lamp
US4249102A (en) Halogen-metal vapor discharge lamp
US3279877A (en) Method for processing high-pressure vapor-discharge arc tube
US3452238A (en) Metal vapor discharge lamp
US4247798A (en) Mercury-metal halide discharge lamp
EP0183247A2 (en) High pressure metal halide lamp with xenon buffer gas
JPS60170152A (ja) 放電灯
US3897594A (en) High pressure mercury discharge lamp
JPH0684496A (ja) 高圧金属蒸気放電ランプ
US3385645A (en) Method of dosing the arc tube of a mercury-additive lamp
US3867664A (en) Electric discharge devices