EP0232774B1 - Bildaufnahmeröhre - Google Patents

Bildaufnahmeröhre Download PDF

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Publication number
EP0232774B1
EP0232774B1 EP87100956A EP87100956A EP0232774B1 EP 0232774 B1 EP0232774 B1 EP 0232774B1 EP 87100956 A EP87100956 A EP 87100956A EP 87100956 A EP87100956 A EP 87100956A EP 0232774 B1 EP0232774 B1 EP 0232774B1
Authority
EP
European Patent Office
Prior art keywords
contact
layer
tube
front disc
pick
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
EP87100956A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0232774A1 (de
Inventor
Hellmut Dipl.-Phys. Marseille
Heinz Schindling
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.)
Heimann GmbH
Original Assignee
Heimann 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 Heimann GmbH filed Critical Heimann GmbH
Publication of EP0232774A1 publication Critical patent/EP0232774A1/de
Application granted granted Critical
Publication of EP0232774B1 publication Critical patent/EP0232774B1/de
Expired legal-status Critical Current

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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
    • H01J29/92—Means forming part of the tube for the purpose of providing electrical connection to it

Definitions

  • the invention relates to an image pickup tube with a front pane, which is covered on its rear side with a transparent, electrically conductive layer which is connected to a photoconductor, the decrease in the signal current taking place through a contact which leads through the front pane and leads to the layer.
  • FIG. 1 shows the front part of an image pick-up tube of conventional type, in which the decrease in the signal current via the signal ring
  • the capacitance formed by the field network 5 lying parallel to the layer 3 and the photoconductive layer 3 itself is generally approximately 5 pF. This capacity has an unfavorable effect on the size of the signal-to-noise ratio, so that attempts have been made for some time to produce picture tubes with a lower output capacity.
  • the invention is accordingly based on the object of designing an image pickup tube of the type mentioned at the outset, that is to say with a signal contact incorporated in the windshield, in such a way that the photoconductive layer can be optimally utilized.
  • the contact lies in a channel running at right angles in the windshield, one end of which ends on the side of the windshield and the other end of which on the transparent, electrically conductive layer. Due to the side leading out of the contact, the usable area is significantly increased compared to the prior art.
  • FIGS. 3a and 3b in two different views.
  • the contact 7a passes through the front window 6 at a right angle, so that the channel receiving it has one end on the side, i. ends at the edge of the windshield 6 and with its other end at the layer 3. This enables layer 3 to be contacted laterally.
  • the diameter of the usable circular area can be up to 20 mm in the case of a 1 "image recording tube without a disturbance of the image in the form of distortions being detectable on the reproduction side.
  • the shape of the contact 7a also allows the production of image recording tubes with fiber optic windshields and low output capacitance, in which the coupling of image intensifiers is possible without interference from the signal contact.
  • the vacuum-tight connection of the contact pin 7a to the front pane 6 can be produced with the aid of glass solder or indium or a suitable metallic alloy or by direct melting.

Landscapes

  • Transforming Light Signals Into Electric Signals (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
EP87100956A 1986-02-06 1987-01-23 Bildaufnahmeröhre Expired EP0232774B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8603174U DE8603174U1 (de) 1986-02-06 1986-02-06 Bildaufnahmeröhre
DE8603174U 1986-02-06

Publications (2)

Publication Number Publication Date
EP0232774A1 EP0232774A1 (de) 1987-08-19
EP0232774B1 true EP0232774B1 (de) 1989-10-18

Family

ID=6791384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100956A Expired EP0232774B1 (de) 1986-02-06 1987-01-23 Bildaufnahmeröhre

Country Status (3)

Country Link
EP (1) EP0232774B1 (US20030199744A1-20031023-C00003.png)
JP (1) JPS62129757U (US20030199744A1-20031023-C00003.png)
DE (2) DE8603174U1 (US20030199744A1-20031023-C00003.png)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646283B1 (fr) * 1989-04-25 1995-08-04 Thomson Tubes Electroniques Tube electronique de prise de vue avec glace d'entree moulee, et procede de fabrication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7109570A (US20030199744A1-20031023-C00003.png) * 1971-07-10 1973-01-12
AT321062B (de) * 1973-06-27 1975-03-10 Gfm Fertigungstechnik Werkzeugmaschine zur spanabhebenden Bearbeitung von Kurbelwellen od.dgl.
US4068261A (en) * 1975-09-08 1978-01-10 Tokyo Shibaura Electric Co., Ltd. Image pickup devices and image pickup tubes utilized therein

Also Published As

Publication number Publication date
EP0232774A1 (de) 1987-08-19
DE3760836D1 (en) 1989-11-23
JPS62129757U (US20030199744A1-20031023-C00003.png) 1987-08-17
DE8603174U1 (de) 1986-06-19

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