GB1042184A - Fluorescent discharge lamp - Google Patents
Fluorescent discharge lampInfo
- Publication number
- GB1042184A GB1042184A GB48383/64A GB4838364A GB1042184A GB 1042184 A GB1042184 A GB 1042184A GB 48383/64 A GB48383/64 A GB 48383/64A GB 4838364 A GB4838364 A GB 4838364A GB 1042184 A GB1042184 A GB 1042184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indium
- phosphor
- coated
- suspension
- fluorescent 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
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,042,184. Fluorescent discharge lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Nov. 27, 1964 [Nov. 27, 1963], No. 48383/64. Heading H1D. A fluorescent discharge lamp, using an indium amalgam as a source of mercury vapour, has an internal envelope coating comprising indium particles admixed with a phosphor, or a light-transmitting indium layer between the envelope and a phosphor layer. In particular, the inner surface of a lamp bulb may be coated with a suspension of indium, and heated at about 550‹ C. to remove the binder, before being coated with a phosphor suspension and reheated. The intermediate heating step may be omitted if different binders are used for the indium and phosphor suspensions, e.g. nitrocellulose and ethylcellulose. Alternatively, the initial indium layer may be applied by vacuum or chemical deposition, or the lamp bulb may be coated with a suspension of a mixture of indium and phosphor particles. Specific examples are given. The lamp may contain argon at a pressure of 2 mm. of Hg, or a mixture of 85% argon and 15% helium, together with a small quantity of mercury.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US326573A US3339100A (en) | 1963-11-27 | 1963-11-27 | Fluorescent electric discharge lamp having the phosphor particles admixed with indium powder particles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1042184A true GB1042184A (en) | 1966-09-14 |
Family
ID=23272798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48383/64A Expired GB1042184A (en) | 1963-11-27 | 1964-11-27 | Fluorescent discharge lamp |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3339100A (en) |
| GB (1) | GB1042184A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3932783A (en) * | 1969-01-02 | 1976-01-13 | Sylvania Electric Products Inc. | Fluorescent lamp containing indium oxide |
| US4055781A (en) * | 1974-09-09 | 1977-10-25 | Gte Sylvania Incorporated | Special purpose fluorescent lamp |
| DE102007001179A1 (en) * | 2007-01-05 | 2008-07-10 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Low-pressure discharge lamp |
| US8633645B2 (en) | 2011-11-09 | 2014-01-21 | General Electric Company | Fluorescent lamp assembly with improved run-up |
| US20130113362A1 (en) | 2011-11-09 | 2013-05-09 | General Electric Company | Auxiliary amalgam for a low pressure discharge lamp |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2707687A (en) * | 1951-08-30 | 1955-05-03 | Westinghouse Electric Corp | Method of forming luminescent coating |
| US2858234A (en) * | 1955-10-24 | 1958-10-28 | Gen Electric | Method of coating lamps |
| US2838707A (en) * | 1956-09-13 | 1958-06-10 | Duro Test Corp | Fluorescent lamp and method of making |
| US3007071A (en) * | 1958-04-29 | 1961-10-31 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Low-pressure mercury vapor discharge lamp |
| US2905572A (en) * | 1958-10-02 | 1959-09-22 | Gen Electric | Phosphor coating of improved adherence and preparation thereof |
| NL252546A (en) * | 1959-06-12 |
-
1963
- 1963-11-27 US US326573A patent/US3339100A/en not_active Expired - Lifetime
-
1964
- 1964-11-27 GB GB48383/64A patent/GB1042184A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3339100A (en) | 1967-08-29 |
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