FR40986E - Cellule photo-électrique - Google Patents

Cellule photo-électrique

Info

Publication number
FR40986E
FR40986E FR40986DA FR40986E FR 40986 E FR40986 E FR 40986E FR 40986D A FR40986D A FR 40986DA FR 40986 E FR40986 E FR 40986E
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 FR40986E publication Critical patent/FR40986E/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
FR40986D 1931-11-16 1931-11-16 Cellule photo-électrique Expired FR40986E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR40986T 1931-11-16

Publications (1)

Publication Number Publication Date
FR40986E true FR40986E (fr) 1932-09-17

Family

ID=8677197

Family Applications (1)

Application Number Title Priority Date Filing Date
FR40986D Expired FR40986E (fr) 1931-11-16 1931-11-16 Cellule photo-électrique

Country Status (1)

Country Link
FR (1) FR40986E (fr)

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