FR693043A - Photoelectric cell - Google Patents

Photoelectric cell

Info

Publication number
FR693043A
FR693043A FR693043DA FR693043A FR 693043 A FR693043 A FR 693043A FR 693043D A FR693043D A FR 693043DA FR 693043 A FR693043 A FR 693043A
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
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.)
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
Priority claimed from NL46329A external-priority patent/NL27115C/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR693043A publication Critical patent/FR693043A/en
Priority claimed from DE1930N0140630 external-priority patent/DE680108C/en
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
FR693043D 1929-05-16 1930-03-29 Photoelectric cell Expired FR693043A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL46329A NL27115C (en) 1929-05-16 1929-05-16
DE1930N0140630 DE680108C (en) 1930-12-07 1930-12-07 Photoelectric device
DE147067X 1931-11-20
DE406507X 1932-07-26

Publications (1)

Publication Number Publication Date
FR693043A true FR693043A (en) 1930-11-14

Family

ID=34108927

Family Applications (2)

Application Number Title Priority Date Filing Date
FR693043D Expired FR693043A (en) 1929-05-16 1930-03-29 Photoelectric cell
FR43719D Expired FR43719E (en) 1929-05-16 1933-07-20 Photoelectric cell

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR43719D Expired FR43719E (en) 1929-05-16 1933-07-20 Photoelectric cell

Country Status (2)

Country Link
FR (2) FR693043A (en)
GB (1) GB406507A (en)

Also Published As

Publication number Publication date
FR43719E (en) 1934-08-09
GB406507A (en) 1934-03-01

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