GB1046912A - Improvements in or relating to pick-up tubes - Google Patents

Improvements in or relating to pick-up tubes

Info

Publication number
GB1046912A
GB1046912A GB2579/65A GB257965A GB1046912A GB 1046912 A GB1046912 A GB 1046912A GB 2579/65 A GB2579/65 A GB 2579/65A GB 257965 A GB257965 A GB 257965A GB 1046912 A GB1046912 A GB 1046912A
Authority
GB
United Kingdom
Prior art keywords
target
photocathode
pick
area
jan
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
GB2579/65A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB1046912A publication Critical patent/GB1046912A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/30—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at anode potential, e.g. iconoscope
    • H01J31/32—Tubes with image amplification section, e.g. image-iconoscope, supericonoscope

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

1,046,912. Television pick-up tubes. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 20, 1965 [Jan. 31, 1964], No. 2579/65. Heading H1D In a pick-up tube, fast electron image from photocathode 8 is focused on to a BIC target 1 to produce a charge pattern having an area smaller than that of the photocathode, and the charge pattern is scanned by a fast electron beam to cause emission of secondary electrons in a ratio greater than one, these electrons being collected by an electrode 18 adjacent the target to derive an output signal at 23. The target may comprise a metallic grid supporting an aluminium layer, 0À1 Á thick, and a zinc sulphide layer, 0.5 to 3 Á thick, and mounted on a metal ring 6 forming part of the tube envelope. To pick-up X-ray or γ-ray images, the photocathode 8 may be provided over a luminescent layer. The ratio of cathode area to target area may be about 36 : 1 but the voltages applied to focusing electrodes 12-16 may be adjusted to vary the area of the photocathode focused on to the target and hence the image demagnification. A corrector ring 24 may be provided between the collector electrode 18 and the target 1. Specific electrode operating potentials are given.
GB2579/65A 1964-01-31 1965-01-20 Improvements in or relating to pick-up tubes Expired GB1046912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR962214A FR1391983A (en) 1964-01-31 1964-01-31 Improvements to image analyzer tubes using induced conductivity targets

Publications (1)

Publication Number Publication Date
GB1046912A true GB1046912A (en) 1966-10-26

Family

ID=8822164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2579/65A Expired GB1046912A (en) 1964-01-31 1965-01-20 Improvements in or relating to pick-up tubes

Country Status (6)

Country Link
US (1) US3461340A (en)
CH (1) CH419230A (en)
DE (1) DE1952445U (en)
FR (1) FR1391983A (en)
GB (1) GB1046912A (en)
NL (1) NL6501156A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7115320A (en) * 1971-11-06 1973-05-08
US4471378A (en) * 1979-12-31 1984-09-11 American Sterilizer Company Light and particle image intensifier
RU2100866C1 (en) * 1994-09-27 1997-12-27 Крутяков Ювеналий Александрович Method of conversion of image of external power effects to electric signal and electron-beam vacuum device intended for its realization

Also Published As

Publication number Publication date
NL6501156A (en) 1965-08-02
FR1391983A (en) 1965-03-12
US3461340A (en) 1969-08-12
CH419230A (en) 1966-08-31
DE1952445U (en) 1966-12-29

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