NL7508792A - Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal - Google Patents

Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal

Info

Publication number
NL7508792A
NL7508792A NL7508792A NL7508792A NL7508792A NL 7508792 A NL7508792 A NL 7508792A NL 7508792 A NL7508792 A NL 7508792A NL 7508792 A NL7508792 A NL 7508792A NL 7508792 A NL7508792 A NL 7508792A
Authority
NL
Netherlands
Prior art keywords
layer
anode
cathode
aperture
image intensifier
Prior art date
Application number
NL7508792A
Other languages
Dutch (nl)
Original Assignee
Optische Ind De Oude Delft Nv
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 Optische Ind De Oude Delft Nv filed Critical Optische Ind De Oude Delft Nv
Priority to NL7508792A priority Critical patent/NL7508792A/en
Publication of NL7508792A publication Critical patent/NL7508792A/en

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
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • H01J31/505—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output flat tubes, e.g. proximity focusing tubes
    • 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

Landscapes

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

Abstract

Image intensifier of the proximity focus type, where the chances of the conducting phosphorous layer on the anode aperture disintegrating is practically eliminated. The tube consists of a cathode aperture (1), and anode aperture (6) linked by an airtight wall (9) using metallic sealing rings (7, 8). The cathode aperture is covered with a layer of phosphorous (4), and the phosphor layer is coated with a conducting layer made from a very thin aluminium foil (3), which is connected to the ring. A transparent conducting layer (5) is applied between the phosphorous layer and the anode aperture. The potential on the transparent anode layer is high enough to produce forces which are high enough to compensate for the forces produced between the anode and cathode sides due to the potential difference.
NL7508792A 1975-07-23 1975-07-23 Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal NL7508792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7508792A NL7508792A (en) 1975-07-23 1975-07-23 Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7508792A NL7508792A (en) 1975-07-23 1975-07-23 Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal

Publications (1)

Publication Number Publication Date
NL7508792A true NL7508792A (en) 1977-01-25

Family

ID=19824203

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7508792A NL7508792A (en) 1975-07-23 1975-07-23 Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal

Country Status (1)

Country Link
NL (1) NL7508792A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561621A1 (en) * 1992-03-19 1993-09-22 Hamamatsu Photonics K.K. Imaging tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0561621A1 (en) * 1992-03-19 1993-09-22 Hamamatsu Photonics K.K. Imaging tube
US5493174A (en) * 1992-03-19 1996-02-20 Hamamatsu Photonics K.K. Imaging tube having improved fluorescent surface structure on fiber optic plate

Similar Documents

Publication Publication Date Title
GB1476450A (en) Radiography apparatus
DE50013217D1 (en) Ionization chamber with a non-radioactive ionization source
AU545183B2 (en) Rotary x-ray anode
MX3370E (en) IMPROVEMENTS IN CATHODIC RAY TUBE THAT HAS A PERFORATED, IMPROVED SHADOW MASK
NL7508792A (en) Image intensifier of proximity focus type with stabilised layer - has cathode and anode apertures linked by airtight wall with seal
US3244921A (en) Optical fiber face-plate assembly for image tubes
GB1321470A (en) Electron optics for a minifying image tube
GB1417452A (en) Image tube employing high field electron emission suppression
GB1280952A (en) Image converter tube
KR840002578A (en) Method of forming cathode ray tube fluorescent surface
GB1454902A (en) Method and apparatus for the production of electrostatic charge patterns
GB1330448A (en) Television camera tube
GB1174032A (en) Image Pick-Up Tube
GB1505741A (en) X-ray lithography
FR2384349A1 (en) Intensifier for X=ray, gamma-ray or weak light-ray image - having input and output screen with phosphor mosaic, giving great resolution and accurate reproduction
US2577628A (en) Television system
SU766388A1 (en) Apparatus for making photoelectronic devices
CA1011386A (en) Electrodes of cathode ray tube electron gun
GB1395441A (en) Image intensifiers
GB676817A (en) Improvements in or relating to television pick-up tubes
FR2428913A1 (en) Appts. generating longitudinal strips of energetic electron beams - has slotted conductive cylinders concentrically mounted around cathode for electrostatic shielding and aperture lens focusing
FR2427683A1 (en) Secondary electrons emitter mfr. for CRT - by thermo-compressing metal emitter between glass plates
FR2212635A1 (en) Image intensifier tube for X-or gamma rays - with thin stop layer of phosphomolybdate glass
GB1325520A (en) Glow discharge electron guns
JPS56160741A (en) Metal-back film forming method for cathode ray tube