US2020726A - Gaseous electric discharge device - Google Patents
Gaseous electric discharge device Download PDFInfo
- Publication number
- US2020726A US2020726A US691056A US69105633A US2020726A US 2020726 A US2020726 A US 2020726A US 691056 A US691056 A US 691056A US 69105633 A US69105633 A US 69105633A US 2020726 A US2020726 A US 2020726A
- Authority
- US
- United States
- Prior art keywords
- electric discharge
- container
- gaseous electric
- gaseous
- discharge device
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/33—Special shape of cross-section, e.g. for producing cool spot
Definitions
- the object oi the present invention is to provide a high intensity light source.
- a further object of the invention is to provide a gaseous electric discharge device wherein a discharge of 0 low current density is a high intensity light source. Still further objects and advantages attaching to the device and to its use and operation will be apparent to those skilled in the art from the following particular description.
- the invention comprises a gaseous electric discharge device the container of which has a flattened mid-portion and which device comprises thermionic electrodes at each end thereof and a gaseous atmosphere comprising a metal vapor, such as sodium vapor, in said container.
- the thermionic electrodes, the sodium vapor and the flattened portion of the container which sends out a greater proportion of the emitted light in a direction normal to the plane of the greater axes of cross-section of the flattened portion, cooperate so that the device is a high intensity light source of large area.
- FIG. 1 is a front elevational view
- Fig. 2 is a side elevational view
- the new and novel gaseous electric discharge device comprises a container having a flattened mid-portion l and two cylindrically shaped end parts 2 and 3. Electrodes 4 and 5 are sealed into said parts 2 and 3 respectively. Said electrodes 4 and 5 consist of a coiled metal filament, such as a tungsten filament, covered with an electron emitting material, such as barium oxide and is electron emitting when heated. The current leads for said electrodes 4 and 5 are connected to contacts on the bases 6 and 1 respectively attached to the container of said device.
- the container has a gaseous filling therein comprising a starting gas, such as neon or argon,
- the gaseous electric discharge between said electrodes 4 and 5 first takes place in the gas.
- the heat of the discharge vaporizes the sodium, which is solid at room temperature, and the sodium vapor 5 participates in the discharge during the operation of the device.
- the light emitted by the gaseous electric discharge device during the op- .-eration thereof is rich in yellow radiations characteristic of the sodium vapor.
- the luminous discharge is evenly distributed in the flattened portion during the operation of the device.
- a gaseous electric discharge lamp device comprising a container, thermionic electrodes sealed therein, a gaseous atmosphere therein comprising sodium vapor, said container having a flattened mid-portion to direct a large proportion of the light emitted by the gaseous elec- 3o tric discharge between said electrodes in a direction normal to the plane ofthe greater axes of cross-section of the flattened portion of said container whereby an evenly distributed, high intensity light field of large area is emitted.
- a gaseous electric discharge lamp device comprising a container, thermionic electrodes sealed therein, a gaseous atmosphere therein comprising a starting gas and sodium vapor, said container having a flattened mid-portion to 40 direct a large proportion of the light emitted by the gaseous electric discharge between said electrades in a direction normal to the plane of the greater axes of cross-section of the flattened portion of said container whereby an evenly distributed, high intensity light field of large area is emitted.
Landscapes
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
Nov. 12, 1935.
G. GAIDIES 2,020,726
GASEOUS ELECTRIC DISCHARGE DEVIGE Filed Sept. 26, 1933 Am 1| [1 v,1 Z '1 i! I u I 1 v 5 M :1 l I w INVENTOR ATTORNEY Patented Nov. 12, 1935 UNITED STATES 2.02am GASEOUS ELECTRIC mscnancr. nsvrca Georg Gaidies, Berlin-Pankow, Germany, assignor to General Electric Company, a corporation of New York Application September 26, 1933, Serial No. 691,056 In Germany October 1, 1932 beacons or the like.
The object oi the present invention is to provide a high intensity light source. A further object of the invention is to provide a gaseous electric discharge device wherein a discharge of 0 low current density is a high intensity light source. Still further objects and advantages attaching to the device and to its use and operation will be apparent to those skilled in the art from the following particular description.
In accordance with these objects the invention comprises a gaseous electric discharge device the container of which has a flattened mid-portion and which device comprises thermionic electrodes at each end thereof and a gaseous atmosphere comprising a metal vapor, such as sodium vapor, in said container. The thermionic electrodes, the sodium vapor and the flattened portion of the container, which sends out a greater proportion of the emitted light in a direction normal to the plane of the greater axes of cross-section of the flattened portion, cooperate so that the device is a high intensity light source of large area.
In the drawing accompanying and forming part of the specification an embodiment of the invention is illustrated in which Fig. 1 is a front elevational view, and
Fig. 2 is a side elevational view Referring to the drawing the new and novel gaseous electric discharge device comprises a container having a flattened mid-portion l and two cylindrically shaped end parts 2 and 3. Electrodes 4 and 5 are sealed into said parts 2 and 3 respectively. Said electrodes 4 and 5 consist of a coiled metal filament, such as a tungsten filament, covered with an electron emitting material, such as barium oxide and is electron emitting when heated. The current leads for said electrodes 4 and 5 are connected to contacts on the bases 6 and 1 respectively attached to the container of said device.
The container has a gaseous filling therein comprising a starting gas, such as neon or argon,
and a metal vapor, such as sodium vapor. The gaseous electric discharge between said electrodes 4 and 5 first takes place in the gas. The heat of the discharge vaporizes the sodium, which is solid at room temperature, and the sodium vapor 5 participates in the discharge during the operation of the device. The light emitted by the gaseous electric discharge device during the op- .-eration thereof is rich in yellow radiations characteristic of the sodium vapor. The luminous discharge is evenly distributed in the flattened portion during the operation of the device.
The thermionic electrodes 4 and 5, the sodium vapor and the flattened part I of the container, which part sends out a large proportion of the light emitted by the gaseous electric discharge ;in a direction normal to the plane of the greater axes of cross-section of the flattened portion, cooperate to make the device a high intensity light source of large area useful in beacon work or the like.
What I claim as new and desire to secure by Letters Patent of the United States is:-
l. A gaseous electric discharge lamp device comprising a container, thermionic electrodes sealed therein, a gaseous atmosphere therein comprising sodium vapor, said container having a flattened mid-portion to direct a large proportion of the light emitted by the gaseous elec- 3o tric discharge between said electrodes in a direction normal to the plane ofthe greater axes of cross-section of the flattened portion of said container whereby an evenly distributed, high intensity light field of large area is emitted. 2. A gaseous electric discharge lamp device comprising a container, thermionic electrodes sealed therein, a gaseous atmosphere therein comprising a starting gas and sodium vapor, said container having a flattened mid-portion to 40 direct a large proportion of the light emitted by the gaseous electric discharge between said electrades in a direction normal to the plane of the greater axes of cross-section of the flattened portion of said container whereby an evenly distributed, high intensity light field of large area is emitted.
GEORG GAIDIES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE406611X | 1932-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2020726A true US2020726A (en) | 1935-11-12 |
Family
ID=6422092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US691056A Expired - Lifetime US2020726A (en) | 1932-10-01 | 1933-09-26 | Gaseous electric discharge device |
Country Status (2)
Country | Link |
---|---|
US (1) | US2020726A (en) |
GB (1) | GB406611A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2965789A (en) * | 1958-04-18 | 1960-12-20 | Gen Electric | Vapor pressure control in discharge lamps |
US3729643A (en) * | 1970-04-03 | 1973-04-24 | Matsushita Electronics Corp | Mercury vapor discharge lamp with radiation plane in envelope |
US4476413A (en) * | 1978-05-22 | 1984-10-09 | Commonwealth Scientific And Industrial Research Organization | Atomic spectral lamp |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1153833B (en) * | 1958-12-17 | 1963-09-05 | Gen Electric Co Ltd | Electric sodium vapor discharge lamp |
-
1933
- 1933-09-26 US US691056A patent/US2020726A/en not_active Expired - Lifetime
- 1933-10-02 GB GB27067/33A patent/GB406611A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2965789A (en) * | 1958-04-18 | 1960-12-20 | Gen Electric | Vapor pressure control in discharge lamps |
US3729643A (en) * | 1970-04-03 | 1973-04-24 | Matsushita Electronics Corp | Mercury vapor discharge lamp with radiation plane in envelope |
US4476413A (en) * | 1978-05-22 | 1984-10-09 | Commonwealth Scientific And Industrial Research Organization | Atomic spectral lamp |
Also Published As
Publication number | Publication date |
---|---|
GB406611A (en) | 1934-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1984428A (en) | Gaseous electric discharge device | |
US2020737A (en) | Gaseous electric discharge arc lamp | |
US2020726A (en) | Gaseous electric discharge device | |
US2321910A (en) | Time delay glow switch | |
US1951137A (en) | Gaseous electric discharge device | |
US2265396A (en) | Gaseous electric discharge device | |
US2273450A (en) | High pressure metal vapor lamp | |
GB624013A (en) | Improvements in electric discharge tubes | |
US2030715A (en) | Gaseous electric discharge lamp device | |
GB1026069A (en) | Arc discharge lamp | |
GB1026445A (en) | Gas-filled low-voltage electric incandescent lamp | |
US3237041A (en) | Cathodic glow gaseous discharge device | |
US2990490A (en) | Gaseous electric discharge lamp | |
US2032945A (en) | 115 volt ultra-violet lamp | |
GB608677A (en) | Improvements in gas-filled electron discharge devices | |
US1655966A (en) | Arc incandescent lamp | |
US2103068A (en) | Gaseous electric discharge device | |
US2103048A (en) | Gaseous electric discharge lamp device | |
US2001495A (en) | Lamp unit | |
US3275397A (en) | Method for processing discharge lamps | |
US1919933A (en) | Gaseous electric discharge device | |
US2009196A (en) | Gaseous electric discharge lamp device | |
US1984502A (en) | Gaseous electric discharge lamp device | |
GB538855A (en) | Improvements in or relating to high-pressure metal vapour electric discharge tubes | |
GB830243A (en) | Improvements in or relating to gas-filled electric incandescent lamps |