GB1282513A - Low-pressure discharge lamps - Google Patents

Low-pressure discharge lamps

Info

Publication number
GB1282513A
GB1282513A GB45548/69A GB4554869A GB1282513A GB 1282513 A GB1282513 A GB 1282513A GB 45548/69 A GB45548/69 A GB 45548/69A GB 4554869 A GB4554869 A GB 4554869A GB 1282513 A GB1282513 A GB 1282513A
Authority
GB
United Kingdom
Prior art keywords
envelope
lamp
internal
layer
external
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
GB45548/69A
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 GB1282513A publication Critical patent/GB1282513A/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
    • H01J61/56—One or more circuit elements structurally associated with the lamp

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1282513 Glow discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 Sept 1969 [19 Sept 1968] 45548/69 Heading HID In a low pressure glow discharge lamp the envelope 6 comprises transparent ceramic material 10 with an external transparent electrically conductive layer 9 forming a current supply conductor for the lamp. The material 10 may be barium titanate and the layer 9 tin oxide or indium oxide. The lamp may have a single internal electrode 12 or may have an internal layer 11 of tin oxide acting as a second electrode and together with layer 9 and material 10 forming a series capacitor. The envelope 6 has an external diameter of 3 mm., an internal diameter of 2 mm., a length of 2¢ cm. and is closed by flat or curved glass members 7 and 8. The lamp is enclosed in a sealed housing (not shown) of transparent insulating material and has a filling of neon at a pressure of 30 torr. In an alternative embodiment (Figs. 2 and 3, not shown) a cylindrical ceramic envelope is provided with two longitudinally spaced semicylindrical internal layers forming electrodes, and two semi-cylindrical external layers covered by a transparent or reflecting lacquer coating. One of the external layers may be omitted and a current lead provided through the envelope to one of the internal layers.
GB45548/69A 1968-09-19 1969-09-16 Low-pressure discharge lamps Expired GB1282513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE6753632U DE6753632U (en) 1968-09-19 1968-09-19 LOW PRESSURE DISCHARGE LAMP WITH A WALL NOT CLOSING THE DISCHARGE SPACE, THAT U.A. CONSISTS OF A BEAM.

Publications (1)

Publication Number Publication Date
GB1282513A true GB1282513A (en) 1972-07-19

Family

ID=6593563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45548/69A Expired GB1282513A (en) 1968-09-19 1969-09-16 Low-pressure discharge lamps

Country Status (4)

Country Link
US (1) US3649864A (en)
DE (1) DE6753632U (en)
FR (1) FR2018417A1 (en)
GB (1) GB1282513A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174238A (en) * 1985-03-14 1986-10-29 Philips Nv Electrodeless low-pressure discharge lamp
DE3713041A1 (en) * 1986-04-22 1987-11-05 Shing Cheung Chow MULTICOLOR DISCHARGE LAMP
DE3723435A1 (en) * 1986-07-15 1988-01-21 Toshiba Kawasaki Kk Gas-discharge lamp and a device which uses said lamp

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174944A (en) * 1978-01-30 1979-11-20 Gte Sylvania Incorporated Single lead electrically-activated flashlamp
US4370597A (en) * 1981-01-12 1983-01-25 The United States Of America As Represented By The Secretary Of The Army Thyratron switch for narrow pulses
CH670171A5 (en) * 1986-07-22 1989-05-12 Bbc Brown Boveri & Cie
US5311097A (en) * 1992-03-04 1994-05-10 Rockwell International Corporation Fluorescent lamp apparatus for avionics liquid crystal displays
US5519285A (en) * 1992-12-15 1996-05-21 Matsushita Electric Works, Ltd. Electrodeless discharge lamp
DE19526211A1 (en) * 1995-07-18 1997-01-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Process for operating discharge lamps or emitters
US6447937B1 (en) * 1997-02-26 2002-09-10 Kyocera Corporation Ceramic materials resistant to halogen plasma and components using the same
US6614185B1 (en) * 1999-06-07 2003-09-02 Toshiba Lighting & Technology Corporation Discharge tube with interior and exterior electrodes
US6762556B2 (en) 2001-02-27 2004-07-13 Winsor Corporation Open chamber photoluminescent lamp
DE10122392A1 (en) * 2001-05-09 2002-11-14 Philips Corp Intellectual Pty Gas discharge lamp
DE10126958A1 (en) * 2001-06-01 2002-12-05 Philips Corp Intellectual Pty Liquid crystal display with improved backlight
DE602004008259T2 (en) * 2003-03-18 2008-05-15 Philips Intellectual Property & Standards Gmbh GAS DISCHARGE LAMP
KR20050111770A (en) * 2003-03-18 2005-11-28 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Gas discharge lamp
KR100587371B1 (en) * 2003-12-12 2006-06-08 엘지.필립스 엘시디 주식회사 Back-light unit and method for driving the same
JP6303946B2 (en) * 2014-09-16 2018-04-04 ウシオ電機株式会社 Noble gas fluorescent lamp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR403208A (en) * 1908-06-30 1909-10-28 Farbenfab Vorm Bayer F & Co Process for the production of disazo dyestuffs and the resulting products
DE643079C (en) * 1935-08-09 1937-03-30 Patra Patent Treuhand Electric cathode glow lamp in dwarf lamp size
US2654042A (en) * 1949-07-29 1953-09-29 Gen Electric Integrally capacitively ballasted discharge lamp
US2822496A (en) * 1956-12-05 1958-02-04 Maurer Georg Low-voltage gas discharge illumination device
US2925511A (en) * 1958-07-15 1960-02-16 Tung Sol Electric Inc Cold cathode vacuum lamp
US3363134A (en) * 1965-12-08 1968-01-09 Gen Electric Arc discharge lamp having polycrystalline ceramic arc tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174238A (en) * 1985-03-14 1986-10-29 Philips Nv Electrodeless low-pressure discharge lamp
GB2174238B (en) * 1985-03-14 1989-06-21 Philips Nv Electrodeless low-pressure discharge lamp
DE3713041A1 (en) * 1986-04-22 1987-11-05 Shing Cheung Chow MULTICOLOR DISCHARGE LAMP
DE3723435A1 (en) * 1986-07-15 1988-01-21 Toshiba Kawasaki Kk Gas-discharge lamp and a device which uses said lamp

Also Published As

Publication number Publication date
DE6753632U (en) 1969-05-29
FR2018417A1 (en) 1970-05-29
US3649864A (en) 1972-03-14

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