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GB404448A - Improvements in luminous electric discharge tubes - Google Patents

Improvements in luminous electric discharge tubes

Info

Publication number
GB404448A
GB404448A GB35979/32A GB3597932A GB404448A GB 404448 A GB404448 A GB 404448A GB 35979/32 A GB35979/32 A GB 35979/32A GB 3597932 A GB3597932 A GB 3597932A GB 404448 A GB404448 A GB 404448A
Authority
GB
United Kingdom
Prior art keywords
resistances
dec
electrodes
class
electric discharge
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
GB35979/32A
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.)
General Electric Company PLC
Original Assignee
General Electric Company PLC
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 General Electric Company PLC filed Critical General Electric Company PLC
Publication of GB404448A publication Critical patent/GB404448A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/547—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode outside the vessel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/01—Fluorescent lamp circuits with more than two principle electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/05—Starting and operating circuit for fluorescent lamp

Landscapes

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

Abstract

404,448. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent Treuhand- Ges. f³r Elektrische Gl³hlampen; 11 Ehrenbergstrasse, Berlin.) Dec. 19, 1932, No. 35979. Convention date, Dec. 24, 1931. [Class 39 (i).] To facilitate starting, a metal network 8 of thin wires and of mesh so wide that it does not substantially decrease the light radiation is fitted closely on the outer wall of the tube, and may be connected to either or both of the electrodes 6, 7 directly as at 9 or through resistances. The network may be itself divided into sections which may be connected together through resistances. The electrodes 6, 7 may be heated by the discharge current or by auxiliary heating means. The envelope 1 may be transparent to ultra-violet rays, or may consist of a fluorescing glass. Reference has been directed by the Comptroller to Specifications 314,898 and 323,244, [both in Class 39 (i), Electric lamps, Arc &c.].
GB35979/32A 1931-12-24 1932-12-19 Improvements in luminous electric discharge tubes Expired GB404448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE404448X 1931-12-24

Publications (1)

Publication Number Publication Date
GB404448A true GB404448A (en) 1934-01-18

Family

ID=6421782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35979/32A Expired GB404448A (en) 1931-12-24 1932-12-19 Improvements in luminous electric discharge tubes

Country Status (2)

Country Link
US (1) US1984428A (en)
GB (1) GB404448A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305540A (en) * 1995-09-21 1997-04-09 Smiths Industries Plc Discharge lamps
US5747946A (en) * 1995-09-21 1998-05-05 Smiths Industries Public Limited Corporation Gas discharge lamps and systems

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567491A (en) * 1943-12-29 1951-09-11 Mitchell John Wesley Luminous discharge tube
US2512280A (en) * 1947-03-10 1950-06-20 Gen Electric Electric discharge device construction
US2683836A (en) * 1947-03-10 1954-07-13 Gen Electric Electric discharge device construction
BE490509A (en) * 1948-08-05
US2579989A (en) * 1949-12-01 1951-12-25 Jr Nathaniel B Wales Radio energized lamp
US2769117A (en) * 1952-07-01 1956-10-30 Pirillo Santo Ozone producing device
US2924734A (en) * 1955-06-09 1960-02-09 Siemens Ag Spark gap device
US3714492A (en) * 1971-05-03 1973-01-30 Gte Sylvania Inc Dc fluorescent lamp with improved efficiency
US3753036A (en) * 1971-05-03 1973-08-14 Gte Sylvania Inc Integrated fluorescent lamp unit
NL7610170A (en) * 1976-09-14 1978-03-16 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
US4491766A (en) * 1982-06-24 1985-01-01 North American Philips Lighting Corporation High pressure electric discharge lamp employing a metal spiral with positive potential
US4888528A (en) * 1987-06-29 1989-12-19 Gte Laboratories Incorporated Method of and apparatus for ultrahigh frequency starting of high intensity discharge lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305540A (en) * 1995-09-21 1997-04-09 Smiths Industries Plc Discharge lamps
US5747946A (en) * 1995-09-21 1998-05-05 Smiths Industries Public Limited Corporation Gas discharge lamps and systems
GB2305540B (en) * 1995-09-21 1999-02-17 Smiths Industries Plc Gas discharge lamps and systems

Also Published As

Publication number Publication date
US1984428A (en) 1934-12-18

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