GB1156877A - Improvements in or relating to Devices including a Glow-Discharge Indicator Tube for Reproducing Signs and Glow-Discharge Tubes for Use in Such Devices. - Google Patents
Improvements in or relating to Devices including a Glow-Discharge Indicator Tube for Reproducing Signs and Glow-Discharge Tubes for Use in Such Devices.Info
- Publication number
- GB1156877A GB1156877A GB52469/67A GB5246967A GB1156877A GB 1156877 A GB1156877 A GB 1156877A GB 52469/67 A GB52469/67 A GB 52469/67A GB 5246967 A GB5246967 A GB 5246967A GB 1156877 A GB1156877 A GB 1156877A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glow
- anode
- segments
- cathode
- glow discharge
- 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
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
- H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
- H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
Landscapes
- Gas-Filled Discharge Tubes (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,156,877. Glow discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 17 Nov., 1967 [22 Nov., 1966], No. 52469/67. Heading H1D. A glow discharge indicator tube for reproducing signs in the form of luminous segments, and employing positive column glow whereby the effects of cathode sputtering may be avoided, includes a glow discharge cathode 7 and an anode 6, and a plurality of electrically conductive sign segments 2, a glow discharge path existing between each segment and the anode, each of which paths is both screened from the cathode-anode discharge path and is narrowed by insulating material 4 over at least a part of its length to one or more ducts 5 which end on the corresponding segments, the segments being selectively held positive with respect to the anode in operation. The segments 2 and lead-in conductors 3 are formed by gold deposited on the glass faceplate 1 of the tube, the ducts 5 being formed by apertures in a mica plate 4 which bears against the faceplate and is rendered opaque by a coating of chromium oxide. The cathode 7 is coated with a barium oxide based emissive material; the anode 6 is of iron coated with aluminium; and the filling is of neon containing 0À1% argon, at 250 torr.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL666616395A NL152113B (en) | 1966-11-22 | 1966-11-22 | DEVICE WITH A DISCHARGE TUBE FOR DISPLAYING SYMBOLS AND DISCHARGE TUBE INTENDED FOR SUCH DEVICE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1156877A true GB1156877A (en) | 1969-07-02 |
Family
ID=19798254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52469/67A Expired GB1156877A (en) | 1966-11-22 | 1967-11-17 | Improvements in or relating to Devices including a Glow-Discharge Indicator Tube for Reproducing Signs and Glow-Discharge Tubes for Use in Such Devices. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3479547A (en) |
| JP (1) | JPS521268B1 (en) |
| DE (1) | DE1589270B2 (en) |
| FR (1) | FR1556255A (en) |
| GB (1) | GB1156877A (en) |
| NL (1) | NL152113B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171502A (en) * | 1970-10-23 | 1979-10-16 | Owens-Illinois, Inc. | Gaseous breakdown display device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2558019A (en) * | 1939-02-02 | 1951-06-26 | Products & Licensing Corp | Signal distributing system for television receiver tube having equal number of picture elements and cathode rays |
| FR958354A (en) * | 1947-11-29 | 1950-03-08 | ||
| US2848638A (en) * | 1953-06-09 | 1958-08-19 | Edwin W Smith | Multi-display tube |
| US3133221A (en) * | 1960-09-16 | 1964-05-12 | Westinghouse Electric Corp | Electroluminescent device and terminal means therefor |
| NL278331A (en) * | 1961-06-06 |
-
1966
- 1966-11-22 NL NL666616395A patent/NL152113B/en unknown
-
1967
- 1967-11-04 DE DE1967N0031548 patent/DE1589270B2/en active Granted
- 1967-11-17 US US683992A patent/US3479547A/en not_active Expired - Lifetime
- 1967-11-17 GB GB52469/67A patent/GB1156877A/en not_active Expired
- 1967-11-18 JP JP42074093A patent/JPS521268B1/ja active Pending
- 1967-11-22 FR FR1556255D patent/FR1556255A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL152113B (en) | 1977-01-17 |
| NL6616395A (en) | 1968-05-24 |
| DE1589270A1 (en) | 1970-03-05 |
| FR1556255A (en) | 1969-02-07 |
| US3479547A (en) | 1969-11-18 |
| DE1589270B2 (en) | 1976-05-20 |
| JPS521268B1 (en) | 1977-01-13 |
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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 |