FR1021201A - Improvements to fluorescent lighting devices - Google Patents

Improvements to fluorescent lighting devices

Info

Publication number
FR1021201A
FR1021201A FR1021201DA FR1021201A FR 1021201 A FR1021201 A FR 1021201A FR 1021201D A FR1021201D A FR 1021201DA FR 1021201 A FR1021201 A FR 1021201A
Authority
FR
France
Prior art keywords
lighting devices
fluorescent lighting
fluorescent
devices
lighting
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
Other languages
French (fr)
Inventor
Jean Leblanc
Jacques Leroy
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.)
Regie Autonome des Transports Parisiens
Philips Eclairage et Radio SA
Original Assignee
Regie Autonome des Transports Parisiens
Philips Eclairage et Radio 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 Regie Autonome des Transports Parisiens, Philips Eclairage et Radio SA filed Critical Regie Autonome des Transports Parisiens
Application granted granted Critical
Publication of FR1021201A publication Critical patent/FR1021201A/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
FR1021201D 1950-06-30 1950-06-30 Improvements to fluorescent lighting devices Expired FR1021201A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1021201T 1950-06-30

Publications (1)

Publication Number Publication Date
FR1021201A true FR1021201A (en) 1953-02-16

Family

ID=9576820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1021201D Expired FR1021201A (en) 1950-06-30 1950-06-30 Improvements to fluorescent lighting devices

Country Status (1)

Country Link
FR (1) FR1021201A (en)

Similar Documents

Publication Publication Date Title
FR993783A (en) Improvements to fluorescence lighting tubes
FR1011455A (en) Lighting fixtures improvements
FR1021201A (en) Improvements to fluorescent lighting devices
FR1039658A (en) Watertight tube lighting fixture
FR1015008A (en) Improvements to lighting devices
FR977356A (en) Lighting fixture
FR1147918A (en) Improvements to indirect lighting devices
FR1021066A (en) Improvements to vehicle lighting devices
FR1031780A (en) Improvements to lighting devices
FR1040224A (en) Lamp
FR1013083A (en) Improvements to luminous advertising devices
FR1041696A (en) Fluorescent Lamp Improvements
FR1037344A (en) Lighting fixture
FR1045640A (en) Lighting fixture
FR1043751A (en) Improvements to lighting devices for cycles
FR925904A (en) Improvements to lighting devices
BE507679A (en) Improvements to fluorescent lamps
FR998361A (en) Lighting fixture
FR1016242A (en) Lighting fixture
FR1029896A (en) Improvements to luminescence lighting systems
FR1024068A (en) Improvement in lighting lamps
FR1026024A (en) Fluorescent Lamp Improvements
FR1020280A (en) Lighting fixture
FR1016434A (en) Lighting fixture
FR1049408A (en) Improvements to street lighting devices