US1748396A - Electric lamp - Google Patents
Electric lamp Download PDFInfo
- Publication number
- US1748396A US1748396A US211426A US21142627A US1748396A US 1748396 A US1748396 A US 1748396A US 211426 A US211426 A US 211426A US 21142627 A US21142627 A US 21142627A US 1748396 A US1748396 A US 1748396A
- Authority
- US
- United States
- Prior art keywords
- electric lamp
- electrical discharge
- mixture
- luminous
- tube
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
Definitions
- My present invention relates to electric lamps, and more particularly to luminous electrical discharge tubes.
- the light emitted by luminous electrical 5 discharge tubes has heretofore had the disadvantage, for' most purposes, of showing some predominant color. It is'the object of my present invention to provide a luminous electrical discharge'tube whichemits light- I that is' approximately White to theeye.
- the discharge tube itself may be con 20 structed according to any of the several known methods and designs for making. luminous electrical discharge tubes.
Description
Patented Feb. 25, 1,930 i a 1,748,396
UNITED ST S PA NT OFFICE- J'ACQUES RISLER, F PARIS, FRANCE, ASSIGNOR TO RISZERCORPORATION OF AMERICA, i OF KANSAS CITY, MISSOURI, A (3ORPOIl-ItAlllIOll' OF ELECTRIC LAMP No Drawing. Application filed August a, 1927, Serial No. 211,;42'eam1 in France November 2, 1926.
My present invention relates to electric lamps, and more particularly to luminous electrical discharge tubes.
The light emitted by luminous electrical 5 discharge tubes has heretofore had the disadvantage, for' most purposes, of showing some predominant color. It is'the object of my present invention to provide a luminous electrical discharge'tube whichemits light- I that is' approximately White to theeye.
I" have discovered that when an electrical discharge is passed through-a mixture of substantially '70% neon and 30% helium under reduced pressure an' approximately 7 White light is produced My invention eon.-
5 mm. of mercury.
sists of an electrical discharge tube filled under reduced pressure with a mixture of substantially 7 0% neon and helium.
The discharge tube itself may be con 20 structed according to any of the several known methods and designs for making. luminous electrical discharge tubes. The 1 total pressure of the gaseous mixture in the tube should preferably be between'lO and What I claim and desire'to secure by'LettersPatentis: R luminous electrical discharge tube contaming a-mixture of substantially neon a0 and 30% helium at a total pressureoi bee tween 10" and 5 of mercur'y.=- In testimony whereof I my ig ture. i
' JACQUES nrsmm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1748396X | 1926-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1748396A true US1748396A (en) | 1930-02-25 |
Family
ID=9680717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US211426A Expired - Lifetime US1748396A (en) | 1926-11-02 | 1927-08-08 | Electric lamp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1748396A (en) |
-
1927
- 1927-08-08 US US211426A patent/US1748396A/en not_active Expired - Lifetime
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