GB1382672A - Vapour discharge lamps - Google Patents

Vapour discharge lamps

Info

Publication number
GB1382672A
GB1382672A GB419372A GB419372A GB1382672A GB 1382672 A GB1382672 A GB 1382672A GB 419372 A GB419372 A GB 419372A GB 419372 A GB419372 A GB 419372A GB 1382672 A GB1382672 A GB 1382672A
Authority
GB
United Kingdom
Prior art keywords
tube
wall
jan
discharge lamps
vaporizable substance
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
GB419372A
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.)
EMI Group Ltd
Original Assignee
Thorn Electrical 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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB419372A priority Critical patent/GB1382672A/en
Priority to CA160,979A priority patent/CA967634A/en
Priority to ZA730220A priority patent/ZA73220B/en
Priority to JP743373A priority patent/JPS5630936B2/ja
Priority to AU51266/73A priority patent/AU476233B2/en
Priority to DE2303282A priority patent/DE2303282C3/en
Publication of GB1382672A publication Critical patent/GB1382672A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/385—Exhausting vessels
    • 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
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

1382672 Discharge lamps THORN ELECTRICAL INDUSTRIES Ltd 9 Jan 1973 [28 Jan 1972] 4193/72 Heading HID A low pressure vapour discharge lamp has an exhaust tube 13 extending from the outside, through the tube wall and terminating in a closed end 18 to form a reservoir, the side wall having opening 17 and containing a supply of vaporizable substance which gives rise to substantially all the emitted light. The tube is filled through tube 13, then sealed at tip 22. The lamp may include an inert gas and Li, Na, K, Cd or a mixture thereof for example, as a vaporizable substance. Outside jacket 14 contains an evacuated space. Reference is made to prior art lamps with dispersed dimples over the wall to ensure even metal vapour distribution.
GB419372A 1972-01-28 1972-01-28 Vapour discharge lamps Expired GB1382672A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB419372A GB1382672A (en) 1972-01-28 1972-01-28 Vapour discharge lamps
CA160,979A CA967634A (en) 1972-01-28 1973-01-10 Vapour discharge lamps
ZA730220A ZA73220B (en) 1972-01-28 1973-01-11 Improvements in vapour discharge lamps
JP743373A JPS5630936B2 (en) 1972-01-28 1973-01-18
AU51266/73A AU476233B2 (en) 1972-01-28 1973-01-19 Improvements in vapour discharge lamps
DE2303282A DE2303282C3 (en) 1972-01-28 1973-01-24 Low pressure gas discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB419372A GB1382672A (en) 1972-01-28 1972-01-28 Vapour discharge lamps

Publications (1)

Publication Number Publication Date
GB1382672A true GB1382672A (en) 1975-02-05

Family

ID=9772471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB419372A Expired GB1382672A (en) 1972-01-28 1972-01-28 Vapour discharge lamps

Country Status (6)

Country Link
JP (1) JPS5630936B2 (en)
AU (1) AU476233B2 (en)
CA (1) CA967634A (en)
DE (1) DE2303282C3 (en)
GB (1) GB1382672A (en)
ZA (1) ZA73220B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203283A (en) * 1987-01-29 1988-10-12 Toshiba Kk Lamp for generating ultraviolet radiation
WO2016135008A1 (en) * 2015-02-26 2016-09-01 Philips Lighting Holding B.V. Lighting device with dispenser for a reactive substance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274305A (en) * 1991-12-04 1993-12-28 Gte Products Corporation Low pressure mercury discharge lamp with thermostatic control of mercury vapor pressure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203283A (en) * 1987-01-29 1988-10-12 Toshiba Kk Lamp for generating ultraviolet radiation
US4835442A (en) * 1987-01-29 1989-05-30 Kabushiki Kaisha Toshiba Lamp for generating ultraviolet radiation
GB2203283B (en) * 1987-01-29 1991-01-02 Toshiba Kk Lamp for generating ultraviolet radiation
WO2016135008A1 (en) * 2015-02-26 2016-09-01 Philips Lighting Holding B.V. Lighting device with dispenser for a reactive substance
US10663116B2 (en) 2015-02-26 2020-05-26 Signify Holding B.V. Lighting device with dispenser for a reactive substance

Also Published As

Publication number Publication date
JPS5630936B2 (en) 1981-07-17
DE2303282A1 (en) 1973-08-02
DE2303282C3 (en) 1979-08-09
CA967634A (en) 1975-05-13
AU5126673A (en) 1974-07-25
AU476233B2 (en) 1976-09-16
JPS4887690A (en) 1973-11-17
ZA73220B (en) 1973-10-31
DE2303282B2 (en) 1978-12-07

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee