GB1319042A - Cold cathode gas discharge tubes - Google Patents
Cold cathode gas discharge tubesInfo
- Publication number
- GB1319042A GB1319042A GB270872A GB270872A GB1319042A GB 1319042 A GB1319042 A GB 1319042A GB 270872 A GB270872 A GB 270872A GB 270872 A GB270872 A GB 270872A GB 1319042 A GB1319042 A GB 1319042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cold cathode
- gas discharge
- cathode gas
- discharge tubes
- jan
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes
- H01J17/44—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes having one or more control electrodes
-
- 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
- H01J2893/0068—Electrode systems electrode assembly with control electrodes, e.g. including a screen
Landscapes
- Discharge Lamp (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
1319042 Cold cathode tubes SIEMENS AG 20 Jan 1972 [22 Jan 1971] 2708/72 Heading HID A cold cathode tube comprises a pair of symmetrically arranged main electrodes 1, 2 in an insulating housing 3 having a control electrode 4 on its external surface, and each of the opposed surfaces of the main electrodes has a metal ring 6 forming a hollow electrode carrying a layer 7 of activating material. The rings 6 may be stamped from iron and have sharp edges to promote ignition. A radio-active source may enhance ionization in the tube.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712103007 DE2103007C3 (en) | 1971-01-22 | 1971-01-22 | Cold cathode gas discharge tube |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1319042A true GB1319042A (en) | 1973-05-31 |
Family
ID=5796654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB270872A Expired GB1319042A (en) | 1971-01-22 | 1972-01-20 | Cold cathode gas discharge tubes |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5543237B1 (en) |
CH (1) | CH522949A (en) |
DE (1) | DE2103007C3 (en) |
FR (1) | FR2122451B1 (en) |
GB (1) | GB1319042A (en) |
IT (1) | IT946698B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4218479A1 (en) * | 1992-06-04 | 1993-12-09 | Siemens Ag | Low-pressure gas-discharge switch - places auxiliary electrode around discharge gap and connects to intermediate voltage source for radially directing field to housing wall. |
DE19928322A1 (en) | 1999-06-16 | 2000-12-21 | Siemens Ag | Gas-filled surge arrester with electrode connections in the form of band-like clamps |
-
1971
- 1971-01-22 DE DE19712103007 patent/DE2103007C3/en not_active Expired
- 1971-09-03 CH CH1291571A patent/CH522949A/en not_active IP Right Cessation
-
1972
- 1972-01-17 FR FR7201386A patent/FR2122451B1/fr not_active Expired
- 1972-01-19 IT IT1953372A patent/IT946698B/en active
- 1972-01-20 GB GB270872A patent/GB1319042A/en not_active Expired
- 1972-01-22 JP JP867972A patent/JPS5543237B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
IT946698B (en) | 1973-05-21 |
DE2103007B2 (en) | 1973-12-13 |
CH522949A (en) | 1972-05-15 |
FR2122451B1 (en) | 1975-10-24 |
JPS5543237B1 (en) | 1980-11-05 |
FR2122451A1 (en) | 1972-09-01 |
DE2103007C3 (en) | 1974-07-11 |
DE2103007A1 (en) | 1972-08-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |