GB1308848A - Television camera tube - Google Patents

Television camera tube

Info

Publication number
GB1308848A
GB1308848A GB4074771A GB4074771A GB1308848A GB 1308848 A GB1308848 A GB 1308848A GB 4074771 A GB4074771 A GB 4074771A GB 4074771 A GB4074771 A GB 4074771A GB 1308848 A GB1308848 A GB 1308848A
Authority
GB
United Kingdom
Prior art keywords
neck
gauze
envelope
ring
faceplate
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
GB4074771A
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 GB1308848A publication Critical patent/GB1308848A/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/08—Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted or stored, e.g. backing-plates for storage tubes or collecting secondary electrons

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

1308848 Television camera tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Sept 1971 [4 Sept 1970] 40747/71 Heading H1D A television camera tube comprises a first cylindrical envelope portion joined by a neck to a larger diameter cylindrical portion connected to a faceplate 2, Fig. 2, carrying a photoconductive layer 3, a supporting ring for a gauze electrode 8 being clamped between the faceplate and the neck by resilient pressure means. As illustrated the gauze 8 may be clamped between two supporting rings 19 and 20 which are mounted in a centering ring 16 disposed between an insulating ring 21 bearing on the neck and a spring ring 15 and pressure ring 14. Two platinum pins 17 and 18 are sealed through the envelope to make connection to the gauze electrode 8. The neck comprises a rounded portion of radius R and is coated internally with a conductive layer 10 which extends back to the final anode (Fig. 1, not shown). The dimensions indicated should be within the following limits: where the point 22 is the centre of deflection and the diameter D is 14 mm. Also the voltage V 2 of the gauze should be (2À0Œ0À35) V 1 where V 1 is the potential of the coating 10, preferred values being 500 and 1000 volts for V 1 and V 2 . In manufacture the envelope is formed to the correct shape on a jig and the length of the wider cylindrical part is accurately adjusted by grinding; the distances between the gauze electrode and the neck and target are then determined by the support rings which can be made accurately. The faceplate may be sealed to the envelope by means of glue or enamel after the electrode system has been sealed and cleaned.
GB4074771A 1970-09-04 1971-09-01 Television camera tube Expired GB1308848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7013097.A NL157450B (en) 1970-09-04 1970-09-04 TELEVISION CAMERA TUBE.

Publications (1)

Publication Number Publication Date
GB1308848A true GB1308848A (en) 1973-03-07

Family

ID=19810954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4074771A Expired GB1308848A (en) 1970-09-04 1971-09-01 Television camera tube

Country Status (7)

Country Link
US (1) US3801848A (en)
JP (1) JPS5544425B1 (en)
CA (1) CA933573A (en)
FR (1) FR2107252A5 (en)
GB (1) GB1308848A (en)
IT (1) IT939774B (en)
NL (1) NL157450B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7711392A (en) * 1977-10-18 1979-04-20 Philips Nv FURNISHINGS WITH A ROOM TUBE.
JPS6033336B2 (en) * 1979-10-31 1985-08-02 日本ビクター株式会社 Imaging device
US4668891A (en) * 1984-12-12 1987-05-26 Rca Corporation Pickup tube having a mesh assembly with field modifying means

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036532A (en) * 1928-12-12 1936-04-07 Knoll Cathode-ray-oscillograph
US2908835A (en) * 1954-10-04 1959-10-13 Rca Corp Pickup tube and target therefor
US2917574A (en) * 1955-04-07 1959-12-15 Westinghouse Electric Corp Color television pickup system
US3249785A (en) * 1963-06-10 1966-05-03 Robert W Floyd Target-screen assembly for television pickup tubes
US3300669A (en) * 1963-09-16 1967-01-24 Machlett Lab Inc X-ray vidicon having a target and window assembly with improved thermal conductivity
GB1097587A (en) * 1964-01-06 1968-01-03 Emi Ltd Improvements relating to electron discharge devices
US3375391A (en) * 1965-07-22 1968-03-26 Itt Thin image tube assembly
US3437860A (en) * 1967-04-06 1969-04-08 Gen Electric Image orthicon glass target with aluminum-tantalum oxide coating

Also Published As

Publication number Publication date
CA933573A (en) 1973-09-11
FR2107252A5 (en) 1972-05-05
NL157450B (en) 1978-07-17
AU3306271A (en) 1973-03-08
JPS5544425B1 (en) 1980-11-12
IT939774B (en) 1973-02-10
DE2142435B2 (en) 1976-06-24
DE2142435A1 (en) 1972-03-09
NL7013097A (en) 1972-03-07
US3801848A (en) 1974-04-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee