GB1072717A - A lighting apparatus including a fluorescent tube - Google Patents

A lighting apparatus including a fluorescent tube

Info

Publication number
GB1072717A
GB1072717A GB1394665A GB1394665A GB1072717A GB 1072717 A GB1072717 A GB 1072717A GB 1394665 A GB1394665 A GB 1394665A GB 1394665 A GB1394665 A GB 1394665A GB 1072717 A GB1072717 A GB 1072717A
Authority
GB
United Kingdom
Prior art keywords
apparatus including
fluorescent tube
lighting apparatus
voltage
april
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
GB1394665A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB1072717A publication Critical patent/GB1072717A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
    • H05B41/2325—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps provided with pre-heating electrodes

Landscapes

  • Surface Treatment Of Glass (AREA)

Abstract

1,072,717. Voltage variable resistors. TELE FONAKTIEBOLAGET L. M. ERICSSON. April 1, 1965 [April 1, 1964], No. 13946/65. Heading H1K; [Also in Division H2] A resistor used in a fluorescent lamp circuit has an inverse voltage/resistance characteristic and comprises a semi-conductor element which comprises 87À4% tellurium, 9.7% germanium and 2.9%[ silicon by weight. The element may be composed of a mass of such a composition between two metal electrodes. Other examples of the materials which may be used are set out in Specification 1,070,411. The voltage/current characteristic of the resistor element when A.C. is applied thereacross is shown in the Figure.
GB1394665A 1964-04-01 1965-01-01 A lighting apparatus including a fluorescent tube Expired GB1072717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE398064 1964-04-01

Publications (1)

Publication Number Publication Date
GB1072717A true GB1072717A (en) 1967-06-21

Family

ID=20263271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1394665A Expired GB1072717A (en) 1964-04-01 1965-01-01 A lighting apparatus including a fluorescent tube

Country Status (1)

Country Link
GB (1) GB1072717A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716751A (en) * 1968-05-17 1973-02-13 Matsushita Electric Ind Co Ltd Starter device for a discharge lamp
US3991340A (en) * 1973-08-20 1976-11-09 Tokyo Shibaura Electric Co., Ltd. Discharge lamp lighting apparatus including a sintered type oxide negative resistance starting element
US4162430A (en) 1978-05-30 1979-07-24 Westinghouse Electric Corp. Compact ballast for fluorescent lamp which provides excellent lamp power regulation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716751A (en) * 1968-05-17 1973-02-13 Matsushita Electric Ind Co Ltd Starter device for a discharge lamp
US3991340A (en) * 1973-08-20 1976-11-09 Tokyo Shibaura Electric Co., Ltd. Discharge lamp lighting apparatus including a sintered type oxide negative resistance starting element
US4162430A (en) 1978-05-30 1979-07-24 Westinghouse Electric Corp. Compact ballast for fluorescent lamp which provides excellent lamp power regulation

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