GB522697A - Improvements in high-pressure mercury-vapour electric discharge devices - Google Patents

Improvements in high-pressure mercury-vapour electric discharge devices

Info

Publication number
GB522697A
GB522697A GB36297/38A GB3629738A GB522697A GB 522697 A GB522697 A GB 522697A GB 36297/38 A GB36297/38 A GB 36297/38A GB 3629738 A GB3629738 A GB 3629738A GB 522697 A GB522697 A GB 522697A
Authority
GB
United Kingdom
Prior art keywords
lamp
discharge
watt
watts
envelope
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
GB36297/38A
Other languages
English (en)
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB522697A publication Critical patent/GB522697A/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
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
GB36297/38A 1938-12-01 1938-12-13 Improvements in high-pressure mercury-vapour electric discharge devices Expired GB522697A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE215858X 1938-12-01
CH206032T 1939-10-21

Publications (1)

Publication Number Publication Date
GB522697A true GB522697A (en) 1940-06-25

Family

ID=25724254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36297/38A Expired GB522697A (en) 1938-12-01 1938-12-13 Improvements in high-pressure mercury-vapour electric discharge devices

Country Status (3)

Country Link
CH (1) CH215858A (cs)
GB (1) GB522697A (cs)
NL (1) NL56612C (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143674A (en) * 1983-06-14 1985-02-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High-pressure discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143674A (en) * 1983-06-14 1985-02-13 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High-pressure discharge lamp

Also Published As

Publication number Publication date
NL56612C (cs)
CH215858A (de) 1941-07-15

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