FR726622A - Photoelectric cell - Google Patents

Photoelectric cell

Info

Publication number
FR726622A
FR726622A FR726622DA FR726622A FR 726622 A FR726622 A FR 726622A FR 726622D A FR726622D A FR 726622DA FR 726622 A FR726622 A FR 726622A
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
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR726622A publication Critical patent/FR726622A/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
    • H01J40/16—Photoelectric discharge tubes not involving the ionisation of a gas having photo- emissive cathode, e.g. alkaline photoelectric cell
FR726622D 1930-12-07 1931-11-21 Photoelectric cell Expired FR726622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1930N0140630 DE680108C (en) 1930-12-07 1930-12-07 Photoelectric device

Publications (1)

Publication Number Publication Date
FR726622A true FR726622A (en) 1932-06-01

Family

ID=34088566

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726622D Expired FR726622A (en) 1930-12-07 1931-11-21 Photoelectric cell

Country Status (6)

Country Link
US (1) US2031864A (en)
AT (1) AT132202B (en)
CH (1) CH161166A (en)
DE (1) DE680108C (en)
FR (1) FR726622A (en)
GB (1) GB379893A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558337A (en) * 1945-12-10 1951-06-26 Howard A Chinn Noise generator
US2500941A (en) * 1946-03-07 1950-03-21 Friedman Herbert Geiger-mueller counter structure

Also Published As

Publication number Publication date
US2031864A (en) 1936-02-25
CH161166A (en) 1933-04-15
AT132202B (en) 1933-03-10
GB379893A (en) 1932-09-08
DE680108C (en) 1939-08-22

Similar Documents

Publication Publication Date Title
FR723393A (en) Photoelectric cell
FR724155A (en) Photoelectric cell
FR726622A (en) Photoelectric cell
FR700606A (en) Photoelectric cell
FR705260A (en) Photoelectric cell
FR723305A (en) Photoelectric cell
FR712205A (en) Photoelectric cell
FR709271A (en) Photoelectric cell
FR39749E (en) Photoelectric cell
FR723373A (en) Photoelectric cell
FR695239A (en) Streamer
FR712273A (en) Multiple photoelectric cell
FR682254A (en) Photoelectric cell
FR719842A (en) Improvements to photoelectric cells
FR722924A (en) Advanced calendar
FR689508A (en) Photo holder
FR40986E (en) Photoelectric cell
FR674964A (en) Photoelectric cell
FR694652A (en) Photoelectric cell
FR689577A (en) Photoelectric cell
FR43719E (en) Photoelectric cell
FR680103A (en) Photoelectric cell
FR691775A (en) Collector
FR712542A (en) Improvements to photoelectric cells
FR718972A (en) Improvements to photoelectric cells