FR2421461A1 - Tube a rayons cathodiques pour projection d'images - Google Patents

Tube a rayons cathodiques pour projection d'images

Info

Publication number
FR2421461A1
FR2421461A1 FR7834913A FR7834913A FR2421461A1 FR 2421461 A1 FR2421461 A1 FR 2421461A1 FR 7834913 A FR7834913 A FR 7834913A FR 7834913 A FR7834913 A FR 7834913A FR 2421461 A1 FR2421461 A1 FR 2421461A1
Authority
FR
France
Prior art keywords
target
ray tube
image projection
bellows
tube
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.)
Withdrawn
Application number
FR7834913A
Other languages
English (en)
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.)
Advent Corp
Original Assignee
Advent Corp
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 Advent Corp filed Critical Advent Corp
Publication of FR2421461A1 publication Critical patent/FR2421461A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • H01J29/894—Arrangements combined with the vessel for the purpose of image projection on a screen

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

Tube à rayons cathodiques à distance focale réglable pour projection d'images. Ledit tube comprend une cible dont la position peut être réglée mécaniquement par un dispositif situé à l'extérieur de l'enveloppe sous vide. La cible est montée sur un soufflet qui fait partie de l'enveloppe et est déplacée par rapport à d'autres éléments optiques situés dans celle-ci par un dispositif passant dans le soufflet et permettant de régler sa position à la fois par un déplacement axial et un pivotement après scellement du tube Des organes assurent une meilleure dissipation de la chaleur et un réglage de la température de la cible. Application à la projection d'images de télévision sur des écrans situés à l'extérieur des tubes par des systèmes optiques tels que le système Schmidt.
FR7834913A 1978-03-27 1978-12-12 Tube a rayons cathodiques pour projection d'images Withdrawn FR2421461A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/890,321 US4177400A (en) 1978-03-27 1978-03-27 Projection cathode ray tube having target angularly and longitudinally adjustable to tube axis

Publications (1)

Publication Number Publication Date
FR2421461A1 true FR2421461A1 (fr) 1979-10-26

Family

ID=25396538

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834913A Withdrawn FR2421461A1 (fr) 1978-03-27 1978-12-12 Tube a rayons cathodiques pour projection d'images

Country Status (7)

Country Link
US (1) US4177400A (fr)
JP (1) JPS54128626A (fr)
CA (1) CA1131285A (fr)
DE (1) DE2911684A1 (fr)
FR (1) FR2421461A1 (fr)
GB (1) GB2017396B (fr)
IT (1) IT1203226B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204751A (en) * 1990-08-17 1993-04-20 Hughes Display Products Target support for projection cathode ray tube
US5159230A (en) * 1991-03-07 1992-10-27 Hughes Display Products Corp. Of Ky. Projection cathode ray tube with fluid heat exchanger
US5619095A (en) * 1995-02-21 1997-04-08 Hughes Aircraft Company Projection cathode ray tube having tapered shaft screw target assembly
CN110794875B (zh) * 2019-10-25 2022-03-04 中国电子科技集团公司第三十八研究所 一种用于射线源的浮动靶驱动机构及控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435316A (en) * 1943-11-01 1948-02-03 Farnsworth Res Corp Optical focusing means for image translating devices
BE471711A (fr) * 1946-03-07
FR60011E (fr) * 1949-03-31 1954-09-22 Piézo-relais électronique
US2663012A (en) * 1952-01-30 1953-12-15 John R Beers Projection television tube
US3157055A (en) * 1964-03-17 1964-11-17 Gustav K Medicus Variable linear positioner
NL147577B (nl) * 1971-02-08 1975-10-15 Optische Ind De Oude Delft Nv Diode-beeldversterker- of beeldtransformatorbuis.
US3969648A (en) * 1974-09-03 1976-07-13 Advent Corporation Projection television tube system

Also Published As

Publication number Publication date
IT7947688A0 (it) 1979-01-18
GB2017396A (en) 1979-10-03
IT1203226B (it) 1989-02-15
CA1131285A (fr) 1982-09-07
DE2911684A1 (de) 1979-10-04
GB2017396B (en) 1982-10-20
JPS54128626A (en) 1979-10-05
US4177400A (en) 1979-12-04

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Legal Events

Date Code Title Description
ST Notification of lapse