GB1294022A - Mercury vapour lamp - Google Patents

Mercury vapour lamp

Info

Publication number
GB1294022A
GB1294022A GB09272/70A GB1927270A GB1294022A GB 1294022 A GB1294022 A GB 1294022A GB 09272/70 A GB09272/70 A GB 09272/70A GB 1927270 A GB1927270 A GB 1927270A GB 1294022 A GB1294022 A GB 1294022A
Authority
GB
United Kingdom
Prior art keywords
arc tube
envelope
aided
april
temperature difference
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
GB09272/70A
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.)
Compagnie Electro Mecanique SA
Original Assignee
Compagnie Electro Mecanique SA
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 Compagnie Electro Mecanique SA filed Critical Compagnie Electro Mecanique SA
Publication of GB1294022A publication Critical patent/GB1294022A/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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • 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
    • H01J61/33—Special shape of cross-section, e.g. for producing cool spot

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

1294022 Metal-vapour lamps COMPAGNIE ELECTRO-MECANIQUE 22 April 1970 [28 April 1969] 19272/70 Heading H1D A mercury-vapour lamp doped for example with InI is adapted to operate vertically and is cooled so that the upper portion of the arc tube 1 disposed inside a transparent envelope 3 is cooler than the lower portion to prevent the dopant from settling out. The temperature difference is aided by having a larger heat exchange area per unit height and a thinner annular space inside the envelope at the top of the arc tube. In further embodiments the arc tube may be of uniform cross-section and the temperature difference aided by the use of an envelope of non-uniform diameter or by providing additional means to cool the upper portion of the arc tube, e.g. a flow of cooling gas.
GB09272/70A 1969-04-28 1970-04-22 Mercury vapour lamp Expired GB1294022A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6913435A FR2041513A5 (en) 1969-04-28 1969-04-28

Publications (1)

Publication Number Publication Date
GB1294022A true GB1294022A (en) 1972-10-25

Family

ID=9033168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09272/70A Expired GB1294022A (en) 1969-04-28 1970-04-22 Mercury vapour lamp

Country Status (9)

Country Link
US (1) US3665235A (en)
BE (1) BE749227A (en)
CH (1) CH530090A (en)
CS (1) CS162721B2 (en)
DE (1) DE2020078A1 (en)
FR (1) FR2041513A5 (en)
GB (1) GB1294022A (en)
LU (1) LU60803A1 (en)
NL (1) NL7005331A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157882A (en) * 1984-03-29 1985-10-30 Tungsram Reszvenytarsasag High pressure sodium-vapour or metal halide lamp for direct current operation
US6087764A (en) * 1996-12-12 2000-07-11 Tetra Laval Holdings & Finance S.A. Liquid-cooled discharge lamp

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH576869A5 (en) * 1973-05-11 1976-06-30 Mohn Reinhard Mohndruck Ohg
US3870919A (en) * 1973-06-28 1975-03-11 Gen Electric Discharge lamp having blow-molded arc tube ends
US3939538A (en) * 1973-06-28 1976-02-24 General Electric Company Method of making discharge lamp having blow-molded arc tube ends
US3935491A (en) * 1973-09-24 1976-01-27 Compagnie Electro Mecanique Discharge lamp
US4179616A (en) * 1978-02-21 1979-12-18 Thetford Corporation Apparatus for sanitizing liquids with ultra-violet radiation and ozone
DE2825018C2 (en) * 1978-06-05 1986-07-24 Georg 4902 Bad Salzuflen Horstmann Mercury vapor low pressure lamp
US4506369A (en) * 1982-08-06 1985-03-19 General Electric Company High power cesium lamp system for laser pumping
GB8506788D0 (en) * 1985-03-15 1985-04-17 Secr Defence Thermal electron source
US4891555A (en) * 1985-11-15 1990-01-02 General Electric Company Metal vapor discharge lamps
US4746832A (en) * 1985-12-31 1988-05-24 Gte Products Corporation Controlling the vapor pressure of a mercury lamp
US5427824A (en) * 1986-09-09 1995-06-27 Semiconductor Energy Laboratory Co., Ltd. CVD apparatus
KR910003742B1 (en) * 1986-09-09 1991-06-10 세미콘덕터 에너지 라보라터리 캄파니 리미티드 Cvd apparatus
US4963783A (en) * 1988-12-19 1990-10-16 Gte Products Corporation Electroded photochemical lamps for photochemical mercury separation
DE4203840C1 (en) * 1992-02-10 1993-06-24 Heraeus Instruments Gmbh, 6450 Hanau, De
KR20050084047A (en) * 2002-12-02 2005-08-26 코닌클리케 필립스 일렉트로닉스 엔.브이. Vehicle headlamp
US8628670B2 (en) 2010-07-19 2014-01-14 Cascade Water Services Water treatment apparatus and process to reduce pipe scale and biomass
US8696915B2 (en) 2011-04-28 2014-04-15 Cascade Water Services Water treatment apparatus and process to reduce pipe scale and biomass using positive pressure ultraviolet oxygenation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157882A (en) * 1984-03-29 1985-10-30 Tungsram Reszvenytarsasag High pressure sodium-vapour or metal halide lamp for direct current operation
US6087764A (en) * 1996-12-12 2000-07-11 Tetra Laval Holdings & Finance S.A. Liquid-cooled discharge lamp

Also Published As

Publication number Publication date
LU60803A1 (en) 1970-06-29
NL7005331A (en) 1970-10-30
CS162721B2 (en) 1975-07-15
US3665235A (en) 1972-05-23
BE749227A (en) 1970-10-01
CH530090A (en) 1972-10-31
FR2041513A5 (en) 1971-01-29
DE2020078A1 (en) 1970-11-26

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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