ES263202U - Cathode unit for fluorescent tube - Google Patents
Cathode unit for fluorescent tubeInfo
- Publication number
- ES263202U ES263202U ES1980263202U ES263202U ES263202U ES 263202 U ES263202 U ES 263202U ES 1980263202 U ES1980263202 U ES 1980263202U ES 263202 U ES263202 U ES 263202U ES 263202 U ES263202 U ES 263202U
- Authority
- ES
- Spain
- Prior art keywords
- cathod
- shield
- ions
- molecules
- released
- 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.)
- Granted
Links
- 150000002500 ions Chemical class 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 239000010445 mica Substances 0.000 abstract 3
- 229910052618 mica group Inorganic materials 0.000 abstract 3
- 238000010849 ion bombardment Methods 0.000 abstract 2
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Physical Vapour Deposition (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Cathode unit intended for use in a fluorescent tube and designed in such a way that the service life of the tube is increased markedly as a result of a reduction in the loss of emmission material from the cathod (3). These material losses are caused by, inter alia, ion bombardment and by vaporization of the emission material. In order to achieve a marked increase in the reflection of released ions and molecules back to cathod surface, both ions and molecules which have been released through ion bombardment a ions and molecules which have been released vaporized from the cathod surface, the cathode (3) is surrounded by an electrically conductive cathode shield (6) in the form of a box-shaped casing which is, however, electrically insulated from the cathod. A opening (8) is made in the bottom of the shield for inserting the cathod (3). The open end of the shield (6) is sealed by means of a disc (9), preferably made of mica and provided with a centrally located hole (19). The hole diameter of the mica disc (9) should be selected so that it is as small as possible while bearing in mind the fact that the starting voltage for the tube should not exceed a predetermined value. The opening (8) in the bottom of the shield (6) should be of at least the same area as the hole in the mica disc (9).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7909213A SE435332B (en) | 1979-11-07 | 1979-11-07 | CATHOD UNIT OF LIGHT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES263202U true ES263202U (en) | 1982-12-01 |
| ES263202Y ES263202Y (en) | 1985-12-16 |
Family
ID=20339270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES1980263202U Expired ES263202Y (en) | 1979-11-07 | 1980-11-06 | PERFECTED CATODE UNITS FOR FLUORESCENT TUBES. |
Country Status (25)
| Country | Link |
|---|---|
| JP (1) | JPH0250582B2 (en) |
| AT (1) | AT377385B (en) |
| AU (1) | AU543221B2 (en) |
| BE (1) | BE886030A (en) |
| BR (1) | BR8008906A (en) |
| CA (1) | CA1150340A (en) |
| CH (1) | CH649653A5 (en) |
| CS (1) | CS250206B2 (en) |
| DE (2) | DE3041548C2 (en) |
| DK (1) | DK158177C (en) |
| ES (1) | ES263202Y (en) |
| FI (1) | FI68928C (en) |
| FR (1) | FR2473785A1 (en) |
| GB (1) | GB2077033B (en) |
| HU (1) | HU181318B (en) |
| IT (1) | IT1134172B (en) |
| MX (1) | MX147322A (en) |
| NO (1) | NO153946C (en) |
| PL (1) | PL132221B1 (en) |
| PT (1) | PT72017B (en) |
| RO (1) | RO81624B (en) |
| SE (1) | SE435332B (en) |
| SU (1) | SU1218936A3 (en) |
| WO (1) | WO1981001344A1 (en) |
| YU (1) | YU39696B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69210986T2 (en) * | 1992-02-13 | 1996-12-19 | Auralight Ab | Cathode screen for gas discharge lamps |
| US6384534B1 (en) | 1999-12-17 | 2002-05-07 | General Electric Company | Electrode material for fluorescent lamps |
| SE515637C2 (en) | 2000-01-24 | 2001-09-17 | Auralight Ab | Security structure for fluorescent lamps |
| US6741023B2 (en) * | 2001-07-10 | 2004-05-25 | Light Sources, Inc. | Fluorescent tanning lamp with improved service life |
| SE524397C2 (en) * | 2002-04-11 | 2004-08-03 | Auralight Int Ab | Cathode unit for fluorescent lamps and method for manufacturing fluorescent lamps |
| US6812639B2 (en) * | 2002-09-13 | 2004-11-02 | Light Sources, Inc. | Germicidal lamp with end of life arc quenching device |
| US6809468B1 (en) | 2002-12-11 | 2004-10-26 | Light Sources, Inc. | Cathode with disintegration shield in a gas discharge lamp |
| DE10334175B4 (en) * | 2003-07-26 | 2006-09-21 | Dei-Anang, Kwesi, Priv.-Doz. Dr.med. | Respirator |
| JP2008204856A (en) * | 2007-02-21 | 2008-09-04 | Nec Lighting Ltd | Thermoionic cathode fluorescent lamp |
| DE102008059201A1 (en) | 2008-11-27 | 2010-06-02 | GÖPFERICH, Achim, Prof. Dr. | In situ precipitating drug solutions |
| RU2505744C2 (en) * | 2012-03-06 | 2014-01-27 | Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) | Electric lighting system (versions) |
| JP6691317B2 (en) * | 2015-10-06 | 2020-04-28 | ウシオ電機株式会社 | Short arc type discharge lamp |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR769133A (en) * | 1933-02-17 | 1934-08-20 | Quarzlampen Gmbh | Gas or vapor discharge tubes with one or more electrodes brought to high temperature during operation |
| US2238277A (en) * | 1940-02-09 | 1941-04-15 | Miller Maurice | Combination tube closure and electrode for neon tubes |
| US2725497A (en) * | 1951-04-25 | 1955-11-29 | Westinghouse Electric Corp | Floating grids for fluorescent lamps |
| DE955341C (en) * | 1952-01-13 | 1957-01-03 | Physikalisch Tech Werkstaetten | Gas discharge tubes with a screen enclosing the cathode in a pot-shaped manner |
| FR1110434A (en) * | 1954-08-31 | 1956-02-13 | Hyperion Sa | Improvements to the electrodes of the discharge tubes |
| US2917650A (en) * | 1955-06-29 | 1959-12-15 | Hyperion Sa | Electrode for discharge tubes |
| GB841343A (en) * | 1957-10-09 | 1960-07-13 | Philips Electrical Ind Ltd | Improvements in or relating to low-pressure mercury vapour discharge tubes |
| FR1271505A (en) * | 1959-05-11 | 1961-09-15 | Lampes Sa | Low pressure discharge device |
| US3121184A (en) * | 1960-12-30 | 1964-02-11 | Gen Electric | Discharge lamp with cathode shields |
| NL6514352A (en) * | 1965-11-05 | 1967-05-08 | ||
| US3390297A (en) * | 1966-07-01 | 1968-06-25 | Perkin Elmer Corp | Shield for hollow cathode lamps |
| US3430359A (en) * | 1967-02-09 | 1969-03-04 | Roll O Sheets | Apparatus with heat conductive belt |
| US3623136A (en) * | 1968-05-10 | 1971-11-23 | Hitachi Ltd | Light-source lamp for atomic light-absorption analysis |
-
1979
- 1979-11-07 SE SE7909213A patent/SE435332B/en not_active IP Right Cessation
-
1980
- 1980-11-04 IT IT25764/80A patent/IT1134172B/en active
- 1980-11-04 PT PT72017A patent/PT72017B/en unknown
- 1980-11-04 DE DE3041548A patent/DE3041548C2/en not_active Expired
- 1980-11-04 DE DE19808029380U patent/DE8029380U1/en not_active Expired
- 1980-11-05 BE BE0/202699A patent/BE886030A/en not_active IP Right Cessation
- 1980-11-05 FR FR8023573A patent/FR2473785A1/en active Granted
- 1980-11-06 ES ES1980263202U patent/ES263202Y/en not_active Expired
- 1980-11-06 AU AU65704/80A patent/AU543221B2/en not_active Expired
- 1980-11-06 GB GB8120702A patent/GB2077033B/en not_active Expired
- 1980-11-06 HU HU801205A patent/HU181318B/en unknown
- 1980-11-06 MX MX184636A patent/MX147322A/en unknown
- 1980-11-06 YU YU2839/80A patent/YU39696B/en unknown
- 1980-11-06 WO PCT/SE1980/000279 patent/WO1981001344A1/en not_active Ceased
- 1980-11-06 CA CA000364156A patent/CA1150340A/en not_active Expired
- 1980-11-06 CH CH8265/80A patent/CH649653A5/en not_active IP Right Cessation
- 1980-11-06 BR BR8008906A patent/BR8008906A/en not_active IP Right Cessation
- 1980-11-06 JP JP55502594A patent/JPH0250582B2/ja not_active Expired - Lifetime
- 1980-11-07 PL PL1980227738A patent/PL132221B1/en unknown
- 1980-11-07 CS CS807548A patent/CS250206B2/en unknown
- 1980-11-07 AT AT0547480A patent/AT377385B/en active
-
1981
- 1981-07-03 DK DK296081A patent/DK158177C/en active
- 1981-07-06 NO NO812294A patent/NO153946C/en unknown
- 1981-07-06 FI FI812128A patent/FI68928C/en not_active IP Right Cessation
- 1981-07-06 SU SU813315649A patent/SU1218936A3/en active
- 1981-07-07 RO RO104806A patent/RO81624B/en unknown
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1K | Utility model lapsed |
Effective date: 20050926 |