GB402747A - Improvements in or relating to electric gas and vapor arc discharge lamps - Google Patents
Improvements in or relating to electric gas and vapor arc discharge lampsInfo
- Publication number
- GB402747A GB402747A GB6277/32A GB627732A GB402747A GB 402747 A GB402747 A GB 402747A GB 6277/32 A GB6277/32 A GB 6277/32A GB 627732 A GB627732 A GB 627732A GB 402747 A GB402747 A GB 402747A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge lamps
- relating
- arc discharge
- electric gas
- vapor arc
- 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
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
402,747. Glass manufacture. ZADDACH, R., 148, Langhans Strasse, Weissensee, Berlin. March 2, 1932, No. 6277. Convention date, March 3, 1931. Drawings to Specification. [Class 56.] To resist the disintegrating action of sodium, potassium &c., the bulbs of electric discharge lamps consist of a borate glass preferably containing 5-15% aluminium oxide, zirconium oxide, or barium oxide. A silica content of less than 60% may be included in the glass.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE402747X | 1931-03-03 | ||
FR732614T | 1932-03-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB402747A true GB402747A (en) | 1933-12-04 |
Family
ID=6413253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6277/32A Expired GB402747A (en) | 1931-03-03 | 1932-03-02 | Improvements in or relating to electric gas and vapor arc discharge lamps |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR732614A (en) |
GB (1) | GB402747A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958582C (en) * | 1940-03-06 | 1957-02-21 | Patra Patent Treuhand | Ignition and operating device for electric discharge tubes |
DE962461C (en) * | 1950-12-18 | 1957-04-25 | Dr Hermann E Krefft | Incandescent electrode for electric high pressure and super high pressure discharge lamps |
DE966927C (en) * | 1951-09-23 | 1957-09-19 | Quarzlampen Gmbh | Electric high pressure discharge lamp |
DE974049C (en) * | 1940-12-24 | 1960-08-25 | Patra Patent Treuhand | High pressure metal vapor discharge lamp |
DE976223C (en) * | 1949-08-21 | 1963-06-12 | Patra Patent Treuhand | Electric high-pressure gas discharge lamp for direct current operation with fixed glow electrodes |
DE1153453B (en) * | 1961-06-02 | 1963-08-29 | Patra Patent Treuhand | High pressure discharge lamp with metal halide vapor and high luminous efficiency |
DE1177248B (en) * | 1962-08-22 | 1964-09-03 | Patra Patent Treuhand | Electric high pressure vapor discharge lamp with a color-correcting additional filling |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE911871C (en) * | 1937-03-19 | 1954-05-20 | Tobis Tonbild Syndikat G M B H | Discharge lamp with gas or vapor filling and side narrowing of the discharge path with screens, screens or similar means |
-
1932
- 1932-03-02 GB GB6277/32A patent/GB402747A/en not_active Expired
- 1932-03-03 FR FR732614D patent/FR732614A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958582C (en) * | 1940-03-06 | 1957-02-21 | Patra Patent Treuhand | Ignition and operating device for electric discharge tubes |
DE974049C (en) * | 1940-12-24 | 1960-08-25 | Patra Patent Treuhand | High pressure metal vapor discharge lamp |
DE976223C (en) * | 1949-08-21 | 1963-06-12 | Patra Patent Treuhand | Electric high-pressure gas discharge lamp for direct current operation with fixed glow electrodes |
DE962461C (en) * | 1950-12-18 | 1957-04-25 | Dr Hermann E Krefft | Incandescent electrode for electric high pressure and super high pressure discharge lamps |
DE966927C (en) * | 1951-09-23 | 1957-09-19 | Quarzlampen Gmbh | Electric high pressure discharge lamp |
DE1153453B (en) * | 1961-06-02 | 1963-08-29 | Patra Patent Treuhand | High pressure discharge lamp with metal halide vapor and high luminous efficiency |
DE1177248B (en) * | 1962-08-22 | 1964-09-03 | Patra Patent Treuhand | Electric high pressure vapor discharge lamp with a color-correcting additional filling |
Also Published As
Publication number | Publication date |
---|---|
FR732614A (en) | 1932-09-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB545592A (en) | Improvements in or relating to gaseous electric discharge lamps | |
GB402747A (en) | Improvements in or relating to electric gas and vapor arc discharge lamps | |
GB790955A (en) | Improvements in or relating to sodium-vapour discharge lamps | |
GB494192A (en) | Improvements in high pressure metal vapour electric discharge lamps | |
GB414620A (en) | Improvements in luminous electric discharge tubes | |
GB411029A (en) | Improvements in glass envelopes containing alkali metal-vapour | |
GB431651A (en) | Improvements in or relating to electric discharge devices | |
GB531823A (en) | Improvements in and relating to the sealing of molybdenum members into glass | |
GB482638A (en) | Luminous tube containing a rare gas for producing coloured light | |
GB360339A (en) | Improvements in or relating to electric lamps | |
GB681180A (en) | Improvements in or relating to the manufacture of electric discharge devices | |
AU114390B2 (en) | Improvements in or relating to seals particularly suitable for incandescent lamps and discharge tubes | |
GB393308A (en) | Improvements in or relating to electric gaseous discharge lamps | |
GB498177A (en) | Improvements in or relating to ultra-violet ray emitters and their envelopes | |
GB287563A (en) | Improvements in or relating to gasfilled electric incandescent lamps | |
AU218640A (en) | Improvements in or relating to seals particularly suitable for incandescent lamps and discharge tubes | |
GB507966A (en) | Improvements in opal luminescent glasses | |
AU47636A (en) | Improvements relating tothe filaments of gas filled electric lamps | |
GB491769A (en) | Electric incandescent lamp | |
AU105819B2 (en) | Improvements in or relating to incandescent cathodes suitable for use in gas or vapour filled discharge devices | |
GB417751A (en) | Improvements in leading-in conductors for vitreous envelopes | |
GB317754A (en) | Improvements in and relating to glow discharge lamps for television apparatus | |
GB432614A (en) | Improvements in luminous electric discharge lamps | |
AU3072730A (en) | Improvements relating tothe manufacture of electric rare gas filled lamps | |
GB351433A (en) |