GB1451810A - Heated fluorescent lamp - Google Patents
Heated fluorescent lampInfo
- Publication number
- GB1451810A GB1451810A GB5953573A GB5953573A GB1451810A GB 1451810 A GB1451810 A GB 1451810A GB 5953573 A GB5953573 A GB 5953573A GB 5953573 A GB5953573 A GB 5953573A GB 1451810 A GB1451810 A GB 1451810A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- lamp
- resistive
- mixtures
- resistive coating
- 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
-
- 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
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
1451810 Fluorescent discharge lamps XEROX CORP 21 Dec 1973 59535/73 Heading H1D A fluorescent lamp has a resistive coating 4 to which a heating current can be applied to maintain the lamp at an optimum operating temperature. In one embodiment, Fig. 1, the coating 4 is applied to the exterior of the glass envelope 1 which is coated internally with a phosphor layer 2 and a white translucent reflective coating 3, the coatings being applied to define an aperture 5. The resistive coating 4 may comprise conductive particles e.g. of a metal such as Ag, Al, Ni, Cu or mixtures thereof dispersed in an insulating carrier e.g. a solution of an insulating resin or polymer in either oil or water. Connection to the resistive coating 4 is effected through spring clips 6, Fig. 2, which may also serve to hold the lamp in a fixture. Current is supplied to the lamp through contacts 7. The coating 4 may be applied to only half of the lamp circumference, and the reflective coating 3 may be omitted Fig. 3 (not shown). In an alternative embodiment Fig. 5 (not shown) the coating 4 is applied to the inside of the envelope and is separated from an internal phosphor coating by an insulating layer of varnish, shellac, cellulose, polypropylene, cellulose acetate or mixtures thereof. The resistive coating 4 may act as its own thermostat or a thermocouple may be attached to the lamp Fig. 4, (not shown) to control the heating current to a value which maintains the lamp temperature constant at about 38‹C, corresponding to a mercury-vapour pressure of about 6À5 X 10<SP>-3</SP> torr.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5953573A GB1451810A (en) | 1973-12-21 | 1973-12-21 | Heated fluorescent lamp |
NL7415829A NL7415829A (en) | 1973-12-21 | 1974-12-04 | FLUORESCENT LAMPS. |
JP13934374A JPS50106475A (en) | 1973-12-21 | 1974-12-04 | |
DE19742458637 DE2458637B2 (en) | 1973-12-21 | 1974-12-11 | Heating device for a fluorescent lamp |
FR7442416A FR2255705A1 (en) | 1973-12-21 | 1974-12-20 | High efficiency, low thermal inertia fluorescent lamp - with external resistance layer for heating up and maintaining the lamp temp. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5953573A GB1451810A (en) | 1973-12-21 | 1973-12-21 | Heated fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1451810A true GB1451810A (en) | 1976-10-06 |
Family
ID=10483949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5953573A Expired GB1451810A (en) | 1973-12-21 | 1973-12-21 | Heated fluorescent lamp |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1451810A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010063723A1 (en) * | 2008-12-02 | 2010-06-10 | Brita Gmbh | Mercury vapor lamp, method for sterilizing liquids and liquid sterilization device |
US8614425B2 (en) | 2008-07-10 | 2013-12-24 | Brita Gmbh | Device for sterilizing water and use of same |
US9789427B2 (en) | 2008-06-27 | 2017-10-17 | Brita Gmbh | Apparatus for treating water, particularly filter apparatus, and cartridge |
-
1973
- 1973-12-21 GB GB5953573A patent/GB1451810A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9789427B2 (en) | 2008-06-27 | 2017-10-17 | Brita Gmbh | Apparatus for treating water, particularly filter apparatus, and cartridge |
US8614425B2 (en) | 2008-07-10 | 2013-12-24 | Brita Gmbh | Device for sterilizing water and use of same |
WO2010063723A1 (en) * | 2008-12-02 | 2010-06-10 | Brita Gmbh | Mercury vapor lamp, method for sterilizing liquids and liquid sterilization device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |