DE907097C - Photocell with built-in secondary amplifier - Google Patents

Photocell with built-in secondary amplifier

Info

Publication number
DE907097C
DE907097C DEF4516D DEF0004516D DE907097C DE 907097 C DE907097 C DE 907097C DE F4516 D DEF4516 D DE F4516D DE F0004516 D DEF0004516 D DE F0004516D DE 907097 C DE907097 C DE 907097C
Authority
DE
Germany
Prior art keywords
photocell
amplifier
built
photocathode
silver layer
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
DEF4516D
Other languages
German (de)
Inventor
Dr-Ing Werner Hartmann
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh 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 Fernseh GmbH filed Critical Fernseh GmbH
Application granted granted Critical
Publication of DE907097C publication Critical patent/DE907097C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/08—Cathode arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/28—Vessels, e.g. wall of the tube; Windows; Screens; Suppressing undesired discharges or currents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electron Tubes For Measurement (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

© 5849 3.54© 5849 3.54

Claims (3)

Patentansprüche;Claims; 1. Photozelle mit eingebautem Sekundärelektronenverstärker, insbesondere Netzverstärker, nach Patent 901 569, dadurch gekennzeichnet, daß die ersten Stufen des Sekundärverstärkers von einem Glasrohr umgeben sind, welches an der der Photokathode zugewandten Seite verengt und an dem anderen Ende mit der äußeren Glashülle verschmolzen ist.1. photocell with built-in secondary electron amplifier, in particular network amplifier, according to patent 901 569, characterized in, that the first stages of the secondary amplifier are surrounded by a glass tube, which narrows on the side facing the photocathode and on the other end with the outer glass envelope is fused. 2. Verfahren zur Herstellung einer Metallunterlage, z. B. einer Silberschicht in einer Photozelle gemäß Anspruch 1, dadurch gekennzeichnet, daß der Hohlraum zwischen der äußeren Glaswand und dem inneren Glaszylinder während des Aufbringens der Silberschicht durch einen Gummiring abgedichtet2. Process for the production of a metal base, e.g. B. a silver layer in one Photocell according to claim 1, characterized in that the cavity between the outer glass wall and the inner glass cylinder during the application of the silver layer sealed by a rubber ring . wird.. will. 3. Photozelle nach Anspruch 1, dadurch gekennzeichnet, daß sich die Photokathode in einem erweiterten, vorzugsweise kugelförmigen Teil befindet, während der Sekundärelektronenverstärker in einem engeren zylindrischen Teil untergebracht ist.3. Photocell according to claim 1, characterized in that that the photocathode is located in an enlarged, preferably spherical part, while the secondary electron amplifier is housed in a narrower cylindrical part.
DEF4516D 1937-05-04 1939-10-29 Photocell with built-in secondary amplifier Expired DE907097C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEF4463D DE889657C (en) 1937-05-04 1937-05-04 Secondary electron amplifier
DEF4678D DE901569C (en) 1937-05-04 1938-02-19 Photocell with secondary electron amplifier
GB13174/38A GB514335A (en) 1937-05-04 1938-05-03 Improvements in or relating to electron multipliers

Publications (1)

Publication Number Publication Date
DE907097C true DE907097C (en) 1954-03-22

Family

ID=32073732

Family Applications (3)

Application Number Title Priority Date Filing Date
DEF4463D Expired DE889657C (en) 1937-05-04 1937-05-04 Secondary electron amplifier
DEF4678D Expired DE901569C (en) 1937-05-04 1938-02-19 Photocell with secondary electron amplifier
DEF4516D Expired DE907097C (en) 1937-05-04 1939-10-29 Photocell with built-in secondary amplifier

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DEF4463D Expired DE889657C (en) 1937-05-04 1937-05-04 Secondary electron amplifier
DEF4678D Expired DE901569C (en) 1937-05-04 1938-02-19 Photocell with secondary electron amplifier

Country Status (6)

Country Link
US (1) US2216267A (en)
BE (1) BE427837A (en)
DE (3) DE889657C (en)
FR (1) FR837484A (en)
GB (1) GB514335A (en)
NL (1) NL59576C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750071C (en) * 1939-06-21 1944-12-12 Process for the production of electron multipliers with electrodes of different secondary emissivity
GB745811A (en) * 1951-03-27 1956-03-07 Emi Ltd Improvements relating to electron multipliers
DE1031902B (en) * 1953-11-09 1958-06-12 Siemens Ag Albis Image converter tube
US2983845A (en) * 1959-05-07 1961-05-09 Bendix Corp Electron multiplier spurious noise baffle
US4006376A (en) * 1975-02-28 1977-02-01 Rca Corporation Phototube having improved electron collection efficiency

Also Published As

Publication number Publication date
US2216267A (en) 1940-10-01
NL59576C (en) 1947-07-15
DE889657C (en) 1953-09-14
FR837484A (en) 1939-02-10
DE901569C (en) 1954-01-11
BE427837A (en) 1938-05-31
GB514335A (en) 1939-11-06

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