GB1041356A - Gettering method for electron tubes - Google Patents

Gettering method for electron tubes

Info

Publication number
GB1041356A
GB1041356A GB12298/65A GB1229865A GB1041356A GB 1041356 A GB1041356 A GB 1041356A GB 12298/65 A GB12298/65 A GB 12298/65A GB 1229865 A GB1229865 A GB 1229865A GB 1041356 A GB1041356 A GB 1041356A
Authority
GB
United Kingdom
Prior art keywords
getter
getters
flash
gettering
vaporized
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
GB12298/65A
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.)
SAES Getters SpA
Original Assignee
SAES Getters SpA
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 SAES Getters SpA filed Critical SAES Getters SpA
Publication of GB1041356A publication Critical patent/GB1041356A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1,041,356. Gettering discharge tubes. S.A.E.S. GETTERS S.p.A. March 23, 1965 [April 11, 1964], No. 12298/65. Heading HID. A method of gettering electron tubes utilizes two getters one of which is of the bulk type and is not vaporized but on heating produces a sufficient vacuum (10<SP>-4</SP> mm. Hg) to enable tests to be carried out on the tube whereupon, if the tests are satisfactory, a further getter of the flash type is vaporized. The bulk getter may comprise Zr, Ti, Th, Hf, W, Mo or Nb alloyed with Al, preferably in tablet form and partially saturated with H which is evolved during testing and assists in activating the cathode. The flash getter is preferably of Ba. In Figs. 1, 2 and 3 (not shown) a ring type flash getter 2 is supported above the electron gun of a cathode-ray tube, and a tablet getter 1 is mounted in any of three alternative positions in each of which the effective planes of the getters are at right-angles to allow selective heating with a high-frequency coil.
GB12298/65A 1964-04-11 1965-03-23 Gettering method for electron tubes Expired GB1041356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT793564 1964-04-11

Publications (1)

Publication Number Publication Date
GB1041356A true GB1041356A (en) 1966-09-07

Family

ID=11125549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12298/65A Expired GB1041356A (en) 1964-04-11 1965-03-23 Gettering method for electron tubes

Country Status (3)

Country Link
US (1) US3356436A (en)
GB (1) GB1041356A (en)
IT (1) IT720119A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49132972A (en) * 1973-04-24 1974-12-20
US4431939A (en) * 1981-07-28 1984-02-14 Rca Corporation Structure and method for eliminating blocked apertures caused by charged particles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL153369B (en) * 1966-01-08 1977-05-16 Philips Nv PROCESS OF MANUFACTURING AN ELECTRICAL DISCHARGE TUBE AND ELECTRICAL DISCHARGE TUBE PROVIDED WITH A NON-EVAPORATING GAS BINDER, MANUFACTURED ACCORDING TO THIS PROCESS.
US5508586A (en) * 1993-06-17 1996-04-16 Saes Getters S.P.A. Integrated getter device suitable for flat displays
JPH09320493A (en) * 1996-05-29 1997-12-12 Futaba Corp Vacuum air-tight container
US5688708A (en) * 1996-06-24 1997-11-18 Motorola Method of making an ultra-high vacuum field emission display

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1752747A (en) * 1926-03-10 1930-04-01 Westinghouse Lamp Co Electron-discharge device and getter therefor
US1883174A (en) * 1927-12-12 1932-10-18 Electrons Inc Discharge tube fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49132972A (en) * 1973-04-24 1974-12-20
US4431939A (en) * 1981-07-28 1984-02-14 Rca Corporation Structure and method for eliminating blocked apertures caused by charged particles

Also Published As

Publication number Publication date
US3356436A (en) 1967-12-05
IT720119A (en)

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