FR726278A - Improvements to photoelectric cells - Google Patents

Improvements to photoelectric cells

Info

Publication number
FR726278A
FR726278A FR726278DA FR726278A FR 726278 A FR726278 A FR 726278A FR 726278D A FR726278D A FR 726278DA FR 726278 A FR726278 A FR 726278A
Authority
FR
France
Prior art keywords
photoelectric cells
photoelectric
cells
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR726278A publication Critical patent/FR726278A/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
FR726278D 1931-09-08 1931-11-16 Improvements to photoelectric cells Expired FR726278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2522131A GB389097A (en) 1931-09-08 1931-09-08 Improvements in or relating to photoelectric cells

Publications (1)

Publication Number Publication Date
FR726278A true FR726278A (en) 1932-05-26

Family

ID=10224165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726278D Expired FR726278A (en) 1931-09-08 1931-11-16 Improvements to photoelectric cells

Country Status (2)

Country Link
FR (1) FR726278A (en)
GB (1) GB389097A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755658C (en) * 1934-06-22 1953-08-10 Siemens & Halske A G Device for introducing filler into gas or vapor discharge apparatus
DE742593C (en) * 1939-02-21 1954-03-22 Telefunken Gmbh Process for the production of a cathode showing the external photo effect or the secondary emission effect

Also Published As

Publication number Publication date
GB389097A (en) 1933-03-08

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