Classifications

• • 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
  • H01J7/183—Composition or manufacture of getters
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
  • H01J19/28—Non-electron-emitting electrodes; Screens
  • H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
  • H01J2893/00—Discharge tubes and lamps
  • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
  • H01J2893/0012—Constructional arrangements
  • H01J2893/0019—Chemical composition and manufacture
  • H01J2893/002—Chemical composition and manufacture chemical

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=6775029

Family Applications (1)

Country Status (2)

• 0
  • NL NL55631D patent/NL55631C/xx active
• 1938
  • 1938-11-19 FR FR846281D patent/FR846281A/fr not_active Expired

Also Published As

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