GB615177A - Improvements in or relating to cathode ray tube apparatus - Google Patents

Improvements in or relating to cathode ray tube apparatus

Info

Publication number
GB615177A
GB615177A GB22848/46A GB2284846A GB615177A GB 615177 A GB615177 A GB 615177A GB 22848/46 A GB22848/46 A GB 22848/46A GB 2284846 A GB2284846 A GB 2284846A GB 615177 A GB615177 A GB 615177A
Authority
GB
United Kingdom
Prior art keywords
screen
neck portion
ray tube
cathode
centre
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
GB22848/46A
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.)
Rauland Borg Corp
Original Assignee
Rauland Borg 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 Rauland Borg Corp filed Critical Rauland Borg Corp
Publication of GB615177A publication Critical patent/GB615177A/en
Expired 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

615,177. Cathode-ray tubes. RAULAND CORPORATION. July 31, 1946, No. 2284S. Convention date, Dec. 29, 1945. [Class 39 (i)] A cathode-ray tube has a neck portion 2 axially symmetrical relative to a concave fluorescent screen 5 and a lens system 16 ... 19 is disposed on the same side of the screen as the beam and symmetrically relative to the neck portion and the screen. Preferably, the lenses are apertured and threaded on to the neck portion. The light from screen 5 passes through the window portion 3 which may be flat or curved and is provided with a transparent conductive coating 7 continuous with the wall coatings 6 and 15. Other parts of the envelope may be of metal. Cooling fins may be arranged on the envelope behind the screen. The curvature of the screen is such that its centre is at the centre of deflection of the beam, and it also corrects the field distortion inherent in the lens system.
GB22848/46A 1945-12-29 1946-07-31 Improvements in or relating to cathode ray tube apparatus Expired GB615177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US637976A US2538852A (en) 1945-12-29 1945-12-29 Kinescope projection by refractive optical system mounted on tube neck

Publications (1)

Publication Number Publication Date
GB615177A true GB615177A (en) 1949-01-03

Family

ID=24558139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22848/46A Expired GB615177A (en) 1945-12-29 1946-07-31 Improvements in or relating to cathode ray tube apparatus

Country Status (2)

Country Link
US (1) US2538852A (en)
GB (1) GB615177A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014148A (en) * 1958-04-21 1961-12-19 United Aircraft Corp Infrared photo-imaging device
US3209072A (en) * 1961-06-26 1965-09-28 Gen Electric Light projection electron beam writing system
US3352970A (en) * 1963-04-12 1967-11-14 Matsushita Electric Ind Co Ltd Cathode ray tubes and apparatus using the same

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1749278A (en) * 1928-11-27 1930-03-04 Eastman Kodak Co Optical system for use in photographic color processes
US2086546A (en) * 1929-09-14 1937-07-13 Rca Corp Oscillograph
FR724524A (en) * 1930-12-20 1932-04-28 Cfcmug Improvements to television receivers
US2051632A (en) * 1932-01-15 1936-08-18 Rca Corp Television receiving system
BE406715A (en) * 1933-12-19
US2166399A (en) * 1935-01-16 1939-07-18 Rca Corp Television and like receiver
US2172775A (en) * 1935-01-30 1939-09-12 Telefunken Gmbh Optical system
GB463891A (en) * 1936-02-05 1937-04-08 Gen Electric Co Ltd Improvements in or relating to cathode-ray apparatus for receiving television and the like
FR836698A (en) * 1937-04-15 1939-01-24 Fernseh Ag observation screen for braun tubes, preferably for projection
US2241974A (en) * 1938-04-05 1941-05-13 Gen Electric High power cathode ray device
US2273801A (en) * 1938-12-30 1942-02-17 Rca Corp Television receiver
US2254090A (en) * 1940-04-30 1941-08-26 Rca Corp Cathode ray tube envelope
US2292979A (en) * 1940-08-03 1942-08-11 Wald George Television apparatus
US2305855A (en) * 1941-07-31 1942-12-22 Rca Corp Television apparatus
US2409971A (en) * 1945-06-19 1946-10-22 Eastman Kodak Co Catadioptric television projector

Also Published As

Publication number Publication date
US2538852A (en) 1951-01-23

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