GB381703A - Improvements in or relating to electric luminous discharge tubes - Google Patents

Improvements in or relating to electric luminous discharge tubes

Info

Publication number
GB381703A
GB381703A GB26809/31A GB2680931A GB381703A GB 381703 A GB381703 A GB 381703A GB 26809/31 A GB26809/31 A GB 26809/31A GB 2680931 A GB2680931 A GB 2680931A GB 381703 A GB381703 A GB 381703A
Authority
GB
United Kingdom
Prior art keywords
discharge
constriction
slitted
sept
partition
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
GB26809/31A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB381703A publication Critical patent/GB381703A/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/10—Shields, screens, or guides for influencing the discharge

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

381,703. Discharge lamps. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin, Sept. 25, 1931, No. 26809. Convention date, Sept. 25, 1930. [Class 39 (i).] A vapour or gas-filled lamp is provided with a constriction, the length of which in a direction at right-angles to the direction of the discharge therethrough is considerably greater than the width thereof, the direction of observation to obtain the maximum intensity of illumination at the constriction being oblique to and preferably at right-angles to the discharge therein. The constriction may be formed by segmentshaped or curved metallic or insulating members 10, 11, Figs. 2, 3 and 7, or by constricting or thickening the glass or quartz tube. In a modification, an intense line of light is formed by the discharge passing through a slitted partition 15, Fig. 13. Mercury or directly- or indirectly-heated incandescent electrodes may be used. The Specification as open to inspection under Sect. 91 (3) (a) states also that the tube is fitted with a slitted partition to give a point or a line source of light and is provided at one end with two mercury electrodes. This subjectmatter does not appear in the Specification as accepted.
GB26809/31A 1930-09-26 1931-09-25 Improvements in or relating to electric luminous discharge tubes Expired GB381703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE633760T 1930-09-26

Publications (1)

Publication Number Publication Date
GB381703A true GB381703A (en) 1932-10-13

Family

ID=34812926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26809/31A Expired GB381703A (en) 1930-09-26 1931-09-25 Improvements in or relating to electric luminous discharge tubes

Country Status (3)

Country Link
US (1) US2004175A (en)
DE (1) DE633760C (en)
GB (1) GB381703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046772B (en) * 1953-04-22 1958-12-18 Patra Patent Treuhand Tube-shaped electric lamp for operation in potentially explosive areas

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001765B (en) * 1952-11-14 1957-01-31 Phys Techn Werkstaetten Prof D Electronic flash point light lamp
US3121183A (en) * 1960-08-31 1964-02-11 Duro Test Corp Fluorescent lamp
US3373304A (en) * 1965-08-20 1968-03-12 Sperry Rand Corp Means for increasing electron density in low pressure gas discharge tube
US3590306A (en) * 1969-01-27 1971-06-29 Westinghouse Electric Corp Convective arc stabilization by lamp rotation
DE4120730C2 (en) * 1991-06-24 1995-11-23 Heraeus Noblelight Gmbh Electrodeless low-pressure discharge lamp
DE4222130C2 (en) * 1992-07-06 1995-12-14 Heraeus Noblelight Gmbh High-power radiation
DE19547813C2 (en) * 1995-12-20 1997-10-16 Heraeus Noblelight Gmbh Electrodeless discharge lamp with diaphragm body
DE19547519C2 (en) * 1995-12-20 2003-08-07 Heraeus Noblelight Gmbh Electrodeless discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046772B (en) * 1953-04-22 1958-12-18 Patra Patent Treuhand Tube-shaped electric lamp for operation in potentially explosive areas

Also Published As

Publication number Publication date
US2004175A (en) 1935-06-11
DE633760C (en) 1936-08-05

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