GB400835A - Improvements in or relating to electric discharge tubes for the emission of light - Google Patents
Improvements in or relating to electric discharge tubes for the emission of lightInfo
- Publication number
- GB400835A GB400835A GB7199/33A GB719933A GB400835A GB 400835 A GB400835 A GB 400835A GB 7199/33 A GB7199/33 A GB 7199/33A GB 719933 A GB719933 A GB 719933A GB 400835 A GB400835 A GB 400835A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- relating
- emission
- electric discharge
- discharge tubes
- 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
- H01J61/92—Lamps with more than one main discharge path
- H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
400,835. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. March 9, 1933, No. 7199. Convention date, March 10, 1932. Drawings to Specification. [Class 39 (i).] A lamp is divided into two or more channels containing gases or vapours giving light of different colours, by means of a longitudinal partition formed of a material, for example, black glass, which is not transparent to the light produced in the channels. The partition may be of helical shape.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE400835X | 1932-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB400835A true GB400835A (en) | 1933-11-02 |
Family
ID=6402311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7199/33A Expired GB400835A (en) | 1932-03-10 | 1933-03-09 | Improvements in or relating to electric discharge tubes for the emission of light |
Country Status (6)
Country | Link |
---|---|
US (1) | US2042162A (en) |
BE (1) | BE394605A (en) |
DE (1) | DE597621C (en) |
FR (1) | FR751654A (en) |
GB (1) | GB400835A (en) |
NL (1) | NL37149C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2425697A (en) * | 1944-03-02 | 1947-08-12 | Gen Luminescent Corp | Low-temperature luminescent lamp |
US20020098109A1 (en) * | 1997-09-17 | 2002-07-25 | Jerry Nelson | Method and apparatus for producing purified or ozone enriched air to remove contaminants from fluids |
AU2004238324A1 (en) * | 2003-05-08 | 2004-11-25 | Eco-Rx, Inc. | System for purifying and removing contaminants from gaseous fluids |
-
0
- NL NL37149D patent/NL37149C/xx active
- BE BE394605D patent/BE394605A/xx unknown
- DE DENDAT597621D patent/DE597621C/de active Active
-
1933
- 1933-01-27 US US653848A patent/US2042162A/en not_active Expired - Lifetime
- 1933-02-28 FR FR751654D patent/FR751654A/en not_active Expired
- 1933-03-09 GB GB7199/33A patent/GB400835A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL37149C (en) | |
US2042162A (en) | 1936-05-26 |
BE394605A (en) | |
FR751654A (en) | 1933-09-07 |
DE597621C (en) |
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