US2217402A - Photocell - Google Patents

Photocell Download PDF

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Publication number
US2217402A
US2217402A US41201A US4120135A US2217402A US 2217402 A US2217402 A US 2217402A US 41201 A US41201 A US 41201A US 4120135 A US4120135 A US 4120135A US 2217402 A US2217402 A US 2217402A
Authority
US
United States
Prior art keywords
coating
selenium
metal
photocell
base plate
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 - Lifetime
Application number
US41201A
Other languages
English (en)
Inventor
Geisler Ottmar
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.)
Sueddeutsche Apparate Fabrik GmbH
Original Assignee
Sueddeutsche Apparate Fabrik GmbH
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 Sueddeutsche Apparate Fabrik GmbH filed Critical Sueddeutsche Apparate Fabrik GmbH
Application granted granted Critical
Publication of US2217402A publication Critical patent/US2217402A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
    • H10D48/01—Manufacture or treatment
    • H10D48/04—Manufacture or treatment of devices having bodies comprising selenium or tellurium in uncombined form
    • H10D48/042—Preparation of foundation plates
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/10—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having compound connection of excitation windings

Definitions

  • the known selenium photo elements are frequently built into a housing together with a spurl5 sitive movable coil instrument, serving in. this way as a brightness meter.
  • a spurl5 sitive movable coil instrument serving in. this way as a brightness meter.
  • the magnetic circuit of the movable coil instrument can be easily influenced due to .the
  • the base plate to which iswelded the. semi-conductive coating, especially the selenium coating is made of a light metal, which is covered with a thin coating of metal of the iron group as shown by the single figure illustrating an embodiment'of my invention.
  • a nickel-plated aluminum plate is especially suitable as the base metal of the photocell" according to the present invention.
  • the aluminum plate is appropriately roughened mechanically or f chemically before it is nickel-plated.
  • the nickel-plating-of the a1umi-' numbase plate must be so carried out according to one .of the known methods that. it will' not be 5 .POSSlbIC for any oxide coating to. form between- 'th'ealuminum plate-and the nickel coating;
  • the cell according to the present. invention is) also-superior to the known cells having an iron base plate in vother cases, for instance in. an 15 asse my of a photocellwith a magnetic needle.
  • whatI'claimisz H L-A photocell comprising 'a rigid base plate of light non-ferrous metal on one surface of which is-a thin coating of nickeLa-crystallized m selenium layer mechanically weldled'to said we ing, and a 'thin, light-permeable film of relatively' chemically inactive metal in intimate contat withthe oppositesurface ofsaid-seleniuin'layer.
  • base plate which is covered the surface of the with s'aid'thin layer 'of nickel is of rough form.
  • Aph'otocell comprising a rigid'base'plate'of aluminum, a thin coating of nickel on one surically welded to said coating, and a thin, lightpermeable iilmof relatively chemically inactive; metal in intimate contact with the opposite sur face of said selenium layer. 4
  • photocell comprising a rigid base plate of light non-ferrous metal on'one surface of ofa;v metal of 'the'irongroup, a crystallized selenium layer'mechanically welded to said "coating, and a thin, light -per- 40 meable film of relatively chemically. inactivemetal in intimate contactwithfthe opposite, sur-' face'of said selenium layer.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemically Coating (AREA)
  • Light Receiving Elements (AREA)
  • Photovoltaic Devices (AREA)
  • Hybrid Cells (AREA)
US41201A 1934-10-17 1935-09-19 Photocell Expired - Lifetime US2217402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE439942X 1934-10-17

Publications (1)

Publication Number Publication Date
US2217402A true US2217402A (en) 1940-10-08

Family

ID=6507379

Family Applications (1)

Application Number Title Priority Date Filing Date
US41201A Expired - Lifetime US2217402A (en) 1934-10-17 1935-09-19 Photocell

Country Status (4)

Country Link
US (1) US2217402A (enrdf_load_html_response)
BE (1) BE411722A (enrdf_load_html_response)
FR (2) FR439942A (enrdf_load_html_response)
GB (1) GB439942A (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR796392A (fr) 1936-04-06
FR439942A (fr) 1912-06-27
GB439942A (en) 1935-12-17
BE411722A (enrdf_load_html_response) 1935-11-30

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