IT1212567B - Electric gas discharge lamp for advertising display - Google Patents
Electric gas discharge lamp for advertising displayInfo
- Publication number
- IT1212567B IT1212567B IT8202101A IT210182A IT1212567B IT 1212567 B IT1212567 B IT 1212567B IT 8202101 A IT8202101 A IT 8202101A IT 210182 A IT210182 A IT 210182A IT 1212567 B IT1212567 B IT 1212567B
- Authority
- IT
- Italy
- Prior art keywords
- glass
- electrode
- tube
- discharge lamp
- soft
- Prior art date
Links
- 239000011521 glass Substances 0.000 abstract 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000005388 borosilicate glass Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229910052743 krypton Inorganic materials 0.000 abstract 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
Abstract
The lamp (P) comprises a glass tube made either of soft glass, such as soda glass, or alternatively a hard glass such as boro-silicate glass. The tube contains one of the inert gases - neon, krypton, or xenon- under a pressure of a few mm Mg. A linear electrode (2) is mounted inside the tube, extending along its full length. If the glass is soft then a length of Dumet wire is used, whilst, if the glass is hard a tungsten wire is used. The electrode also carries a deposit of gas absorbing chemical which removes impurities discharged during operation which may otherwise reduce the lamps life. A second electrode (3) is formed outside the glass tube extending over the full length. The electrode is formed by pulverising an aqueous solution of a tin - halogen compound in order to atomise it for application to the glass surface at a temperature of 500 - 700 deg. C. This forms a conducting, transparent layer. A circuit is provided to generate ac or pulse signals to the two electrodes of the discharge lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8202101A IT1212567B (en) | 1982-01-13 | 1982-01-13 | Electric gas discharge lamp for advertising display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8202101A IT1212567B (en) | 1982-01-13 | 1982-01-13 | Electric gas discharge lamp for advertising display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8202101A0 IT8202101A0 (en) | 1982-01-13 |
| IT1212567B true IT1212567B (en) | 1989-11-30 |
Family
ID=11102240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8202101A IT1212567B (en) | 1982-01-13 | 1982-01-13 | Electric gas discharge lamp for advertising display |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1212567B (en) |
-
1982
- 1982-01-13 IT IT8202101A patent/IT1212567B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8202101A0 (en) | 1982-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950213 |