FR39749E - Cellule photoélectrique - Google Patents

Cellule photoélectrique

Info

Publication number
FR39749E
FR39749E FR39749DA FR39749E FR 39749 E FR39749 E FR 39749E FR 39749D A FR39749D A FR 39749DA FR 39749 E FR39749 E FR 39749E
Authority
FR
France
Prior art keywords
photoelectric cell
photoelectric
cell
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)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR39749E publication Critical patent/FR39749E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes
FR39749D 1930-02-26 1931-02-11 Cellule photoélectrique Expired FR39749E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2066878X 1930-02-26

Publications (1)

Publication Number Publication Date
FR39749E true FR39749E (fr) 1932-02-11

Family

ID=19873593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR39749D Expired FR39749E (fr) 1930-02-26 1931-02-11 Cellule photoélectrique

Country Status (1)

Country Link
FR (1) FR39749E (fr)

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