GB323041A - Improvement in apparatus for producing electric current corresponding to light incident thereon - Google Patents

Improvement in apparatus for producing electric current corresponding to light incident thereon

Info

Publication number
GB323041A
GB323041A GB2680428A GB2680428A GB323041A GB 323041 A GB323041 A GB 323041A GB 2680428 A GB2680428 A GB 2680428A GB 2680428 A GB2680428 A GB 2680428A GB 323041 A GB323041 A GB 323041A
Authority
GB
United Kingdom
Prior art keywords
cell
valve
anode
cathode
control electrode
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
GB2680428A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2680428A priority Critical patent/GB323041A/en
Publication of GB323041A publication Critical patent/GB323041A/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

Landscapes

  • Battery Electrode And Active Subsutance (AREA)
  • Hybrid Cells (AREA)

Abstract

323,041. Lindemann, F. A. Sept. 19, 1928. Vacuum tubes.- A photoelectric cell is arranged adjacent to an amplifying valve, but isolated therefrom so as to permit of independent evacuation, the cell and valve forming a single unit, with one lead extending directly from one of the electrodes of the cell to the control electrode of the valve, a connection being made from the control electrode to an external circuit. As shown the cell 11 containing an anode 16 in the form of a ring, and a cathode 14, for example of alkali or alkaline earth metal such as potassium, is separated by an integral partition 13 from the valve envelope 12. which contains a heatable cathode 18, a control electrode 23, and an anode 24. The cathode 14 may be sensitized by hydrogen or by covering it with a colloidal layer. The lead 17 from the anode 16 passes through the partition to the anode 24, and the cathode 14 is connected by a similar lead 15 with the control electrode 23. The cell may contain a. gas. Additional electrodes may be provided in the cell and valve. A metallic sheath 27 is formed with an aperture 28 admitting light to the cell. The device may be used in apparatus for reproducing sounds by photography, for example as described in Specification 320,070. Specifications 290.245 and 296,411 also are referred to.
GB2680428A 1928-09-19 1928-09-19 Improvement in apparatus for producing electric current corresponding to light incident thereon Expired GB323041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2680428A GB323041A (en) 1928-09-19 1928-09-19 Improvement in apparatus for producing electric current corresponding to light incident thereon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2680428A GB323041A (en) 1928-09-19 1928-09-19 Improvement in apparatus for producing electric current corresponding to light incident thereon

Publications (1)

Publication Number Publication Date
GB323041A true GB323041A (en) 1929-12-19

Family

ID=10249480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2680428A Expired GB323041A (en) 1928-09-19 1928-09-19 Improvement in apparatus for producing electric current corresponding to light incident thereon

Country Status (1)

Country Link
GB (1) GB323041A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686269A (en) * 1948-04-20 1954-08-10 Israel M Levitt High-vacuum electronic phototube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686269A (en) * 1948-04-20 1954-08-10 Israel M Levitt High-vacuum electronic phototube

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