GB1193518A - Electron Discharge Device for Generating Spectral Radiation - Google Patents

Electron Discharge Device for Generating Spectral Radiation

Info

Publication number
GB1193518A
GB1193518A GB39903/67A GB3990367A GB1193518A GB 1193518 A GB1193518 A GB 1193518A GB 39903/67 A GB39903/67 A GB 39903/67A GB 3990367 A GB3990367 A GB 3990367A GB 1193518 A GB1193518 A GB 1193518A
Authority
GB
United Kingdom
Prior art keywords
cathode
recess
diameter
excitation
wavelength
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
GB39903/67A
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1193518A publication Critical patent/GB1193518A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

1,193,518. Glow discharge lamps. WESTINGHOUSE ELECTRIC CORP. 31 Aug., 1967 [12 Sept., 1966], No. 39903/67. Heading H1D. A radiation source for producing a particular spectral line characteristic of the cathode material, is characterized in that the cathode 22, Fig. 2, is provided with a recess having a crosssectional area of less than 0À049 square inch so that the line corresponding to excitation of neutral atoms sputtered from the cathode has a greater intensity than the line corresponding to excitation of ionized atoms. The recess may be cylindrical and have a diameter A between “ and 1/64 inch, the pressure of the filling varying from 2 mm. for maximum diameter to 100 mm at minimum diameter of the cathode recess. The length B of the recess should be at least half the diameter A, and the filling may be of neon, argon, or helium. Insulating discs 38 and 44 serve to confine the discharge, and the leads 30 to the anode 28 are surrounded by insulating sleeves 46-48. The cathode may be of nickel which produces radiation at a wavelength of 2320 Š, and the envelope includes a window 16 transparent to this wavelength.
GB39903/67A 1966-09-12 1967-08-31 Electron Discharge Device for Generating Spectral Radiation Expired GB1193518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57882766A 1966-09-12 1966-09-12

Publications (1)

Publication Number Publication Date
GB1193518A true GB1193518A (en) 1970-06-03

Family

ID=24314480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39903/67A Expired GB1193518A (en) 1966-09-12 1967-08-31 Electron Discharge Device for Generating Spectral Radiation

Country Status (3)

Country Link
US (1) US3476970A (en)
DE (1) DE1589414B1 (en)
GB (1) GB1193518A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599595A (en) * 1977-01-24 1981-10-07 Hitachi Ltd Spectral sources
US4341976A (en) * 1980-03-05 1982-07-27 Alpha-Omega Development, Inc. Display system
US4376256A (en) * 1980-03-05 1983-03-08 Alpha-Omega Development, Inc. Segment display system
US4356428A (en) * 1980-03-05 1982-10-26 Intent Patent, A.G. Lighting system
US4320321A (en) * 1980-03-25 1982-03-16 Alexandrov Vitaly V Hollow-cathode gas-discharge tube

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433809A (en) * 1947-02-01 1947-12-30 Sylvania Electric Prod Crater lamp
GB896744A (en) * 1959-10-19 1962-05-16 Commw Scient Ind Res Org Improvements in and relating to atomic spectral lamps
US3205388A (en) * 1960-12-30 1965-09-07 Lany Beatrice Pearson De Drill hole type cathode with cooling means
US3242371A (en) * 1962-03-29 1966-03-22 Hitachi Ltd Hollow-cathode discharge lamp for emission of atomic resonance lines
US3183393A (en) * 1962-04-20 1965-05-11 Westinghouse Electric Corp Discharge device
DE1207498B (en) * 1962-10-15 1965-12-23 Commw Scient Ind Res Org High intensity atomic spectral lamp
US3264511A (en) * 1963-06-20 1966-08-02 Westinghouse Electric Corp Glow discharge device

Also Published As

Publication number Publication date
US3476970A (en) 1969-11-04
DE1589414B1 (en) 1972-06-08

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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