GB1330448A - Television camera tube - Google Patents

Television camera tube

Info

Publication number
GB1330448A
GB1330448A GB3042872A GB3042872A GB1330448A GB 1330448 A GB1330448 A GB 1330448A GB 3042872 A GB3042872 A GB 3042872A GB 3042872 A GB3042872 A GB 3042872A GB 1330448 A GB1330448 A GB 1330448A
Authority
GB
United Kingdom
Prior art keywords
aperture
anode
diameter
diaphragm
foil
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
GB3042872A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1330448A publication Critical patent/GB1330448A/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
    • H01J31/34—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 cathode potential, e.g. orthicon
    • H01J31/38—Tubes with photoconductive screen, e.g. vidicon
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • 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
    • H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection

Landscapes

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

Abstract

1330448 Electron guns PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 June 1972 [2 July 1971] 30428/72 Heading H1D An electron gun for a vidicon comprises a cathode 30 (Fig. 3), a grid 31, an anode 32 having an aperture the smallest diameter of which is at most 0À150 mm. and at least equal to the diameter of the beam, and a hollow cylindrical electrode 35 provided with a diaphragm 36 having an aperture the smallest diameter of which is at most 10% of the distance between it and the anode aperture. As illustrated the anode may comprise an apertured plate covered by a foil 42 including an aperture of 0À1 mm. diameter, the foil acting to intercept the beam of electrons returned from the target whilst allowing uninterrupted passage of the primary electron beam 38. The beam forms a cross-over at 39 and continues as a beam 40 which is restricted to the portion 41 by the diaphragm 36.
GB3042872A 1971-07-02 1972-06-29 Television camera tube Expired GB1330448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7109170A NL7109170A (en) 1971-07-02 1971-07-02

Publications (1)

Publication Number Publication Date
GB1330448A true GB1330448A (en) 1973-09-19

Family

ID=19813538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3042872A Expired GB1330448A (en) 1971-07-02 1972-06-29 Television camera tube

Country Status (9)

Country Link
JP (1) JPS5343768B1 (en)
AU (1) AU471912B2 (en)
BE (1) BE785749A (en)
CA (1) CA950955A (en)
DE (1) DE2231519A1 (en)
FR (1) FR2144743B1 (en)
GB (1) GB1330448A (en)
IT (1) IT956931B (en)
NL (1) NL7109170A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54129871A (en) * 1978-02-13 1979-10-08 Philips Nv Device having camera tube
GB2015195A (en) * 1978-02-15 1979-09-05 Tektronix Inc Cathode Ray Tube Having Low Voltage Focus and Dynamic Correction
NL7809345A (en) * 1978-09-14 1980-03-18 Philips Nv CATHED BEAM TUBE.
US5287038A (en) * 1992-05-14 1994-02-15 Litton Systems, Inc. High resolution electron gun
EP0589522B1 (en) * 1992-09-25 1997-03-05 Koninklijke Philips Electronics N.V. Cathode-ray tube

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1032419B (en) * 1938-04-05 1958-06-19 Loewe Opta Ag Braun tube
NL160428C (en) * 1968-02-13 1979-10-15 Philips Nv IMAGE RECORDING DEVICE WITH IMAGE RECORDING TUBE AND IMAGE RECORDING TUBE FOR SUCH DEVICE.

Also Published As

Publication number Publication date
NL7109170A (en) 1973-01-04
CA950955A (en) 1974-07-09
FR2144743B1 (en) 1977-04-01
DE2231519A1 (en) 1973-01-11
AU471912B2 (en) 1976-05-06
BE785749A (en) 1973-01-02
AU4400672A (en) 1974-01-03
FR2144743A1 (en) 1973-02-16
JPS5343768B1 (en) 1978-11-22
IT956931B (en) 1973-10-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee