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GB1097447A - Photoconductive device - Google Patents

Photoconductive device

Info

Publication number
GB1097447A
GB1097447A GB19727/65A GB1972765A GB1097447A GB 1097447 A GB1097447 A GB 1097447A GB 19727/65 A GB19727/65 A GB 19727/65A GB 1972765 A GB1972765 A GB 1972765A GB 1097447 A GB1097447 A GB 1097447A
Authority
GB
United Kingdom
Prior art keywords
layer
photo
oxide
vitreous
stabilizing
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
GB19727/65A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB1097447A publication Critical patent/GB1097447A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens
    • H01J29/45—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/064—Gp II-VI compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/072—Heterojunctions

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

1,097,447. Photo-conductive device. RADIO CORPORATION OF AMERICA. May 10, 1965 [May 28, 1964], No. 19727/65. Headings H1D and H1K. In a photo-conductive device having a vitreous layer of photo-conductive material which tends to crystallize, the layer is coated with a layer of material which is transparent to all visible light and which mechanically engages the photo-conductive material and restrains crystal growth therein. In an embodiment, as shown, a vidicon tube comprises a glass envelope 14 having a glass faceplate 16, the plate being sealed using an indium ring 18 and clamping ring 20. A mesh screen 22 is provided across the end of a tubular focusing electrode 24. The target 12 comprises a signal electrode 26 of SnO which is transparent and conducting, a vitreous layer 30 of Se and two stabilizing layers 28 and 32, the layer 32 being insulated from the ring 18. The vitreous Se layer may contain up to 25 weight per cent Te and 3 weight per cent As or Sb. The stabilizing layer may comprise Au, Ag, Cu, Rh, Pd, Ge, Ge oxide, Ga, Ga oxide, In, Sb, Sb sulphide or oxide. Some of these materials are not suitable for layer 28 due to lateral conductivity. Only one stabilizing layer may be used. The preferred thickness of each layer is specified. It is stated that no chemical reaction takes place between the layers.
GB19727/65A 1964-05-28 1965-05-10 Photoconductive device Expired GB1097447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US370876A US3310700A (en) 1964-05-28 1964-05-28 Photoconductive device incorporating stabilizing layers on the face of the selenium layer

Publications (1)

Publication Number Publication Date
GB1097447A true GB1097447A (en) 1968-01-03

Family

ID=23461561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19727/65A Expired GB1097447A (en) 1964-05-28 1965-05-10 Photoconductive device

Country Status (7)

Country Link
US (1) US3310700A (en)
BE (1) BE664561A (en)
DE (1) DE1299311B (en)
FR (1) FR1434811A (en)
GB (1) GB1097447A (en)
NL (1) NL6506712A (en)
SE (1) SE335886B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405298A (en) * 1965-03-04 1968-10-08 Rca Corp Photoconductive device having a target including a selenium blocking layer
US3350595A (en) * 1965-11-15 1967-10-31 Rca Corp Low dark current photoconductive device
US3346755A (en) * 1966-03-31 1967-10-10 Rca Corp Dark current reduction in photoconductive target by barrier junction between opposite conductivity type materials
US3418508A (en) * 1967-08-23 1968-12-24 Gen Electrodynamics Corp Photoconductive layer separated from reactive opaque pattern by transparent conductive layer
US3519866A (en) * 1967-09-26 1970-07-07 Rca Corp Photoconductive pickup tube having opaque gold pattern encapsulated in tin oxide layer
US3662206A (en) * 1968-02-20 1972-05-09 Weston Instruments Inc Cathode ray tube having inert barrier between silver chloride seal and photo cathode
NL6919053A (en) * 1969-12-19 1971-06-22
US4021375A (en) * 1975-09-15 1977-05-03 Rca Corporation Method of fabricating polycrystalline selenium imaging devices

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654853A (en) * 1949-02-28 1953-10-06 Rca Corp Photoelectric apparatus
NL167644B (en) * 1951-02-24 Grace W R & Co DEVICE FOR OPENING A BAG AT A PREDEFINED PLACE.
DE868199C (en) * 1951-05-05 1953-02-23 Fritz Dr Michelssen Electrically sensitive body
US2833675A (en) * 1953-10-01 1958-05-06 Rca Corp Method of imparting red response to a photoconductive target for a pickup tube
DE1039660B (en) * 1954-03-29 1958-09-25 Horizons Inc Process for producing a photoconductive material composed of selenium and arsenic
NL219620A (en) * 1956-08-06
US3020442A (en) * 1959-05-11 1962-02-06 Westinghouse Electric Corp Photoconductive target
US3020432A (en) * 1959-11-24 1962-02-06 Westinghouse Electric Corp Photoconductive device
US3148297A (en) * 1959-11-27 1964-09-08 Westinghouse Electric Corp Electron device with storage capabilities

Also Published As

Publication number Publication date
FR1434811A (en) 1966-04-08
NL6506712A (en) 1965-11-29
BE664561A (en) 1965-09-16
SE335886B (en) 1971-06-14
DE1299311B (en) 1969-07-17
US3310700A (en) 1967-03-21

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