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 lamps

Info

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
Application number
GB6277/32A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RUDOLF ZADDACH
Original Assignee
RUDOLF ZADDACH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RUDOLF ZADDACH filed Critical RUDOLF ZADDACH
Publication of GB402747A publication Critical patent/GB402747A/en
Expired legal-status Critical Current

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.
GB6277/32A 1931-03-03 1932-03-02 Improvements in or relating to electric gas and vapor arc discharge lamps Expired GB402747A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (7)

* Cited by examiner, † Cited by third party
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

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