FR875469A - Lampe-tube pour l'optique - Google Patents

Lampe-tube pour l'optique

Info

Publication number
FR875469A
FR875469A FR875469DA FR875469A FR 875469 A FR875469 A FR 875469A FR 875469D A FR875469D A FR 875469DA FR 875469 A FR875469 A FR 875469A
Authority
FR
France
Prior art keywords
optics
tube lamp
lamp
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
Application number
Other languages
English (en)
French (fr)
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
Application granted granted Critical
Publication of FR875469A publication Critical patent/FR875469A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp
FR875469D 1940-11-15 1941-09-22 Lampe-tube pour l'optique Expired FR875469A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE221111X 1940-11-15

Publications (1)

Publication Number Publication Date
FR875469A true FR875469A (fr) 1942-09-23

Family

ID=5838275

Family Applications (1)

Application Number Title Priority Date Filing Date
FR875469D Expired FR875469A (fr) 1940-11-15 1941-09-22 Lampe-tube pour l'optique

Country Status (4)

Country Link
BE (1) BE443146A (cs)
CH (1) CH221111A (cs)
FR (1) FR875469A (cs)
NL (1) NL58238C (cs)

Also Published As

Publication number Publication date
CH221111A (de) 1942-05-15
BE443146A (cs)
NL58238C (cs)

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