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FR819881A - Improvements to the projection of invisible radiation - Google Patents

Improvements to the projection of invisible radiation

Info

Publication number
FR819881A
FR819881A FR819881DA FR819881A FR 819881 A FR819881 A FR 819881A FR 819881D A FR819881D A FR 819881DA FR 819881 A FR819881 A FR 819881A
Authority
FR
France
Prior art keywords
projection
invisible radiation
invisible
radiation
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
French (fr)
Inventor
Gamain
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.)
Societe Industrielle de Liaisons Electriques SA
Original Assignee
Societe Industrielle de Liaisons Electriques SA
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 Societe Industrielle de Liaisons Electriques SA filed Critical Societe Industrielle de Liaisons Electriques SA
Application granted granted Critical
Publication of FR819881A publication Critical patent/FR819881A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
FR819881D 1936-07-03 1936-07-03 Improvements to the projection of invisible radiation Expired FR819881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR819881T 1936-07-03

Publications (1)

Publication Number Publication Date
FR819881A true FR819881A (en) 1937-10-28

Family

ID=9269628

Family Applications (1)

Application Number Title Priority Date Filing Date
FR819881D Expired FR819881A (en) 1936-07-03 1936-07-03 Improvements to the projection of invisible radiation

Country Status (1)

Country Link
FR (1) FR819881A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446157A (en) * 1946-05-23 1948-07-27 Sylvania Electric Prod Electrode
WO1989003778A1 (en) * 1987-10-22 1989-05-05 Labino Patent Ab A headlamp for automotive vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446157A (en) * 1946-05-23 1948-07-27 Sylvania Electric Prod Electrode
WO1989003778A1 (en) * 1987-10-22 1989-05-05 Labino Patent Ab A headlamp for automotive vehicles
US4970628A (en) * 1987-10-22 1990-11-13 Labino Patent Ab Headlamp for automotive vehicles

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