GB1202505A - Fluorescent lamp device - Google Patents

Fluorescent lamp device

Info

Publication number
GB1202505A
GB1202505A GB9972/69A GB997269A GB1202505A GB 1202505 A GB1202505 A GB 1202505A GB 9972/69 A GB9972/69 A GB 9972/69A GB 997269 A GB997269 A GB 997269A GB 1202505 A GB1202505 A GB 1202505A
Authority
GB
United Kingdom
Prior art keywords
envelope
fluorescent lamp
anode
lamp device
lamp
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
GB9972/69A
Other languages
English (en)
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
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
Priority claimed from JP1665068U external-priority patent/JPS5346788Y1/ja
Priority claimed from JP4572768U external-priority patent/JPS4730219Y1/ja
Priority claimed from JP7541368U external-priority patent/JPS4732790Y1/ja
Priority claimed from JP7981868U external-priority patent/JPS484298Y1/ja
Application filed by Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Publication of GB1202505A publication Critical patent/GB1202505A/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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
    • H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
GB9972/69A 1968-03-01 1969-02-25 Fluorescent lamp device Expired GB1202505A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP1665068U JPS5346788Y1 (nl) 1968-03-01 1968-03-01
JP4572768U JPS4730219Y1 (nl) 1968-05-30 1968-05-30
JP5304768 1968-06-21
JP7541368U JPS4732790Y1 (nl) 1968-08-30 1968-08-30
JP7981868U JPS484298Y1 (nl) 1968-09-13 1968-09-13

Publications (1)

Publication Number Publication Date
GB1202505A true GB1202505A (en) 1970-08-19

Family

ID=27519837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9972/69A Expired GB1202505A (en) 1968-03-01 1969-02-25 Fluorescent lamp device

Country Status (4)

Country Link
US (1) US3603841A (nl)
FR (1) FR2003067A1 (nl)
GB (1) GB1202505A (nl)
NL (1) NL154616B (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232543A (en) * 1989-05-18 1990-12-12 Lutron Electronics Co Fluorescent lamp dimming system
GB2246034A (en) * 1990-07-13 1992-01-15 Lutron Electronics Co Circuit and method for improved dimming of gas discharge lamps
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1128604A (en) * 1977-11-07 1982-07-27 Don F. Widmayer Energy conserving automatic light output system
DE10125510A1 (de) * 2001-05-23 2002-12-05 Innolux Gmbh Leuchtstofflampenschaltung
TWI437926B (zh) * 2011-03-28 2014-05-11 Delta Electronics Inc 多輸出之電子安定器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2177883A (en) * 1938-09-01 1939-10-31 Gen Electric Electric discharge apparatus
US2311543A (en) * 1940-04-29 1943-02-16 Clyde L Hunsicker Illuminating apparatus of the gaseous glow tube type
US2513091A (en) * 1948-07-30 1950-06-27 Sylvania Electric Prod Instant start lamp and circuit
US3066241A (en) * 1960-11-18 1962-11-27 Sylvania Electric Prod Apparatus for operating gaseous discharge lamps from a d.c. source
US3325682A (en) * 1962-12-17 1967-06-13 Jefferson Electric Co Variable power supply
US3378724A (en) * 1965-08-03 1968-04-16 New Nippon Electric Co Two-filament arc discharge lamp having alternating discharge spots thereon

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232543A (en) * 1989-05-18 1990-12-12 Lutron Electronics Co Fluorescent lamp dimming system
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
US5841239A (en) * 1990-06-25 1998-11-24 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
GB2246034A (en) * 1990-07-13 1992-01-15 Lutron Electronics Co Circuit and method for improved dimming of gas discharge lamps
GB2246034B (en) * 1990-07-13 1994-12-14 Lutron Electronics Co Circuit and method for improved dimming of gas discharge lamps

Also Published As

Publication number Publication date
FR2003067A1 (nl) 1969-11-07
NL6903059A (nl) 1969-09-03
NL154616B (nl) 1977-09-15
DE1909466B2 (de) 1972-06-22
US3603841A (en) 1971-09-07
DE1909466A1 (de) 1969-09-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years