GB1339099A - Low-pressure mercury vapour discharge lamp - Google Patents

Low-pressure mercury vapour discharge lamp

Info

Publication number
GB1339099A
GB1339099A GB3972972A GB3972972A GB1339099A GB 1339099 A GB1339099 A GB 1339099A GB 3972972 A GB3972972 A GB 3972972A GB 3972972 A GB3972972 A GB 3972972A GB 1339099 A GB1339099 A GB 1339099A
Authority
GB
United Kingdom
Prior art keywords
tin
discharge lamp
pressure mercury
low
indium
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
Application number
GB3972972A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1339099A publication Critical patent/GB1339099A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
    • 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
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

1339099 Tin and indium oxides PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Aug 1972 [28 Aug 1971] 39729/72 Heading C1A [Also in Division H1] Glass in a low-pressure mercury vapour discharge lamp is coated internally with a transparent coating of a material which reduces attack and blackening of the glass and which has a resistance from end to end of between 5 and 200 kilo-ohms. The material may be tin oxide or indium oxide. In one example the envelope is sprayed with a mixture of tin chloride, ethyl alcohol and a small quantity of hydrofluoric acid whilst the envelope is at 600‹ C. to provide a coating of tin oxide with a resistance of 30-50 kilo-ohms. For a coating of indium oxide, the spraying solution may comprise indium chloride and a small quantity of tin chloride in butyl acetate.
GB3972972A 1971-08-28 1972-08-25 Low-pressure mercury vapour discharge lamp Expired GB1339099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7111885,A NL169533C (en) 1971-08-28 1971-08-28 LOW-PRESSURE MERCURY DISCHARGE LAMP.

Publications (1)

Publication Number Publication Date
GB1339099A true GB1339099A (en) 1973-11-28

Family

ID=19813905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3972972A Expired GB1339099A (en) 1971-08-28 1972-08-25 Low-pressure mercury vapour discharge lamp

Country Status (8)

Country Link
US (1) US3809944A (en)
JP (2) JPS4835680A (en)
BE (1) BE788095A (en)
CA (1) CA958753A (en)
DE (1) DE2238927A1 (en)
FR (1) FR2150908B1 (en)
GB (1) GB1339099A (en)
NL (1) NL169533C (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963954A (en) * 1974-11-25 1976-06-15 Gte Sylvania Incorporated Fluorescent lamp having indium oxide conductive coating and a protective coating therefor
US3967153A (en) * 1974-11-25 1976-06-29 Gte Sylvania Incorporated Fluorescent lamp having electrically conductive coating and a protective coating therefor
US4061946A (en) * 1975-10-06 1977-12-06 Gte Sylvania Incorporated Fluorescent lamp having zero back brightness
NL180263C (en) * 1975-11-04 1987-01-16 Philips Nv METHOD FOR APPLYING A LAYER OF A SUSPENSION AND / OR SOLUTION ON THE INNER WALL OF A TUBULAR LAMP, AND APPARATUS FOR CARRYING OUT THIS METHOD
US4070570A (en) * 1976-06-29 1978-01-24 General Energy Development Corporation Lighting apparatus
NL7612882A (en) * 1976-11-19 1978-05-23 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
US4265950A (en) * 1979-11-27 1981-05-05 Westinghouse Electric Corp. Phosphor-coating composition and method for electric discharge lamp
FR2472833A1 (en) * 1979-12-27 1981-07-03 Cit Alcatel LIGHTING SOURCE FOR LINE-BY-LINE ANALYSIS OF A DOCUMENT
JPS61230203A (en) * 1985-03-29 1986-10-14 東芝ライテック株式会社 Lamp unit
WO1996006451A1 (en) * 1994-08-25 1996-02-29 Philips Electronics N.V. Low-pressure mercury vapour discharge lamp
US6456005B1 (en) * 2000-10-31 2002-09-24 General Electric Company Materials and methods for application of conducting members on arc tubes
DE10058852A1 (en) * 2000-11-27 2002-06-06 Raylux Gmbh Compact, electrodeless, low-pressure gas discharge lamp with increased service life
JP3929265B2 (en) * 2001-07-31 2007-06-13 富士通株式会社 Method for forming electron emission film in gas discharge tube
US6841939B2 (en) * 2002-04-08 2005-01-11 General Electric Company Fluorescent lamp
JP4303925B2 (en) * 2002-08-19 2009-07-29 篠田プラズマ株式会社 Method for forming metal oxide film and method for forming secondary electron emission film of gas discharge tube
US7378797B2 (en) * 2005-12-16 2008-05-27 General Electric Company Fluorescent lamp with conductive coating

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067356A (en) * 1960-04-06 1962-12-04 Sylvania Electric Prod Fluorescent lamp

Also Published As

Publication number Publication date
CA958753A (en) 1974-12-03
US3809944A (en) 1974-05-07
JPS5472385U (en) 1979-05-23
DE2238927A1 (en) 1973-03-01
BE788095A (en) 1973-02-28
JPS4835680A (en) 1973-05-25
NL169533C (en) 1982-07-16
NL169533B (en) 1982-02-16
FR2150908A1 (en) 1973-04-13
FR2150908B1 (en) 1976-08-13
NL7111885A (en) 1973-03-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee