GB1428494A - Sodium vapour lamp having starting means - Google Patents

Sodium vapour lamp having starting means

Info

Publication number
GB1428494A
GB1428494A GB2800773A GB2800773A GB1428494A GB 1428494 A GB1428494 A GB 1428494A GB 2800773 A GB2800773 A GB 2800773A GB 2800773 A GB2800773 A GB 2800773A GB 1428494 A GB1428494 A GB 1428494A
Authority
GB
United Kingdom
Prior art keywords
heater
arc tube
tube
june
electrode
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
GB2800773A
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.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania Inc
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 GTE Sylvania Inc filed Critical GTE Sylvania Inc
Publication of GB1428494A publication Critical patent/GB1428494A/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
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch
    • H01J61/544—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch and an auxiliary electrode outside the vessel

Abstract

1428494 Gas discharge lamps GTE SYLVANIA Inc 12 June 1973 [26 June 1972] 28007/73 Heading H1D A high-pressure sodium vapour discharge lamp comprises a glass envelope 1 containing an alumina arc tube 8 filled with sodium, mercury and argon or xenon and having electrodes 13, 14 sealed in the ends, a starting heater 20 adjacent the arc tube and extending substantially along the length thereof, each end of the heater being connected to the electrode at the other end of the arc tube and a thermal switch 24 which opens to disconnect the heater when the lamp has been in operation for a certain time. By connecting the heater to the opposite ends of the tube a high ignition field is produced around each electrode which supplements the action of the heater. Instead of winding the heater around the tube 8 it can be wound on an insulating rod mounted parallel to the arc tube.
GB2800773A 1972-06-26 1973-06-12 Sodium vapour lamp having starting means Expired GB1428494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26629472A 1972-06-26 1972-06-26

Publications (1)

Publication Number Publication Date
GB1428494A true GB1428494A (en) 1976-03-17

Family

ID=23013991

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2800773A Expired GB1428494A (en) 1972-06-26 1973-06-12 Sodium vapour lamp having starting means

Country Status (4)

Country Link
US (1) US3721846A (en)
CA (1) CA983989A (en)
DE (1) DE2332274A1 (en)
GB (1) GB1428494A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028128A1 (en) * 1979-10-25 1981-05-06 Westinghouse Electric Corporation Improvements in or relating to high-intensity-discharge sodium lamps
EP0038035A1 (en) * 1980-04-11 1981-10-21 GTE Laboratories Incorporated Light source comprising a high pressure discharge lamp

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806748A (en) * 1973-03-08 1974-04-23 Gte Sylvania Inc Sodium vapor lamp having a grooved alumina arc tube with side rod heater retainer
US3806747A (en) * 1973-03-08 1974-04-23 Gte Sylvania Inc Sodium vapor lamp having an improved grooved alumina arc tube
JPS5056782A (en) * 1973-09-20 1975-05-17
JPS5056781A (en) * 1973-09-20 1975-05-17
JPS5718301B2 (en) * 1973-12-28 1982-04-15
US3900753A (en) * 1974-05-23 1975-08-19 Gte Sylvania Inc High pressure sodium vapor lamp having low starting voltage
US3942062A (en) * 1974-10-15 1976-03-02 Rca Corporation Metal vapor laser discharge device
JPS5267174A (en) * 1975-12-02 1977-06-03 Iwasaki Electric Co Ltd High voltage discharge lamp containing starter circuit
FR2386135A1 (en) * 1977-03-30 1978-10-27 Gte Sylvania Inc High pressure sodium vapour lamp - has multiple turn wire starting aid coiled around arc tube intermediate to electrodes
JPS5345074A (en) * 1977-05-13 1978-04-22 Matsushita Electronics Corp Metal vapor discharge apparatus
US4316122A (en) * 1979-10-03 1982-02-16 Matsushita Electronics Corporation High pressure sodium vapor discharge lamp
JPS55170750U (en) * 1980-05-08 1980-12-08
HU191673B (en) * 1984-06-12 1987-03-30 Tungsram Reszvenytarsasag High-pressure sodium lamp with improved colour response
HU193859B (en) * 1985-06-05 1987-12-28 Philips Nv High-pressure sodium discharge lamp
US6594931B1 (en) 1999-08-19 2003-07-22 Jeffrey C. Barton Fluorescent illuminated sign assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581959A (en) * 1950-11-13 1952-01-08 Adolph F Koehler Fluorescent lamp
US2765416A (en) * 1953-09-24 1956-10-02 Westinghouse Electric Corp Vapor lamps utilizing chemical compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028128A1 (en) * 1979-10-25 1981-05-06 Westinghouse Electric Corporation Improvements in or relating to high-intensity-discharge sodium lamps
EP0038035A1 (en) * 1980-04-11 1981-10-21 GTE Laboratories Incorporated Light source comprising a high pressure discharge lamp

Also Published As

Publication number Publication date
US3721846A (en) 1973-03-20
CA983989A (en) 1976-02-17
DE2332274A1 (en) 1974-01-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee