GB453043A - Improvements in or relating to cathode ray tube television and like reproducer apparatus - Google Patents

Improvements in or relating to cathode ray tube television and like reproducer apparatus

Info

Publication number
GB453043A
GB453043A GB2836/36A GB283636A GB453043A GB 453043 A GB453043 A GB 453043A GB 2836/36 A GB2836/36 A GB 2836/36A GB 283636 A GB283636 A GB 283636A GB 453043 A GB453043 A GB 453043A
Authority
GB
United Kingdom
Prior art keywords
lens
ray tube
cathode ray
relating
jan
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
GB2836/36A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB453043A publication Critical patent/GB453043A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86Vessels; Containers; Vacuum locks
    • H01J29/89Optical or photographic arrangements structurally combined or co-operating with the vessel
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86Vessels; Containers; Vacuum locks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/89Optical components associated with the vessel
    • H01J2229/8907Image projection devices

Landscapes

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

Abstract

453,043. Television receivers. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Jan. 30, 1936, No. 2836. Convention date, Jan. 30, 1935. [Classes 39 (i) and 40 (iii)] [See also Group XX] A plano-concave lens 15, Fig. 1, is placed adjacent the fluorescent screen 10 so as to form a curved image which is projected by an uncorrected lens 13 as a plane image on the screen 14. When the fluorescent screen is curved, Fig. 3, the lens 16 is double concave. The lens 16 may form the end wall of the cathode ray tube Fig. 4 (not shown).
GB2836/36A 1935-01-30 1936-01-30 Improvements in or relating to cathode ray tube television and like reproducer apparatus Expired GB453043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE453043X 1935-01-30

Publications (1)

Publication Number Publication Date
GB453043A true GB453043A (en) 1936-09-03

Family

ID=6538739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2836/36A Expired GB453043A (en) 1935-01-30 1936-01-30 Improvements in or relating to cathode ray tube television and like reproducer apparatus

Country Status (2)

Country Link
US (1) US2172775A (en)
GB (1) GB453043A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538852A (en) * 1945-12-29 1951-01-23 Rauland Corp Kinescope projection by refractive optical system mounted on tube neck
FR2406887A1 (en) * 1977-10-19 1979-05-18 Matsushita Electric Ind Co Ltd CRT giving reduced distraction due to reflections - has screen with concave outer surface with radius of curvature selected according to viewing distance
DE3221626A1 (en) * 1981-06-08 1983-02-03 Mitsubishi Denki K.K., Tokyo Projection cathode ray tube

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899496A (en) * 1959-08-11 Process for television transmission
US3126495A (en) * 1964-03-24 Cathode ray tube with a concave viewing screen
US2542789A (en) * 1945-01-03 1951-02-20 Jr Adelbert Ames Viewing apparatus for stereoscopic representation of pictures
US2531956A (en) * 1945-08-29 1950-11-28 Waldorf Adrian Optical lens system
US2479907A (en) * 1946-04-03 1949-08-23 Taylor Taylor & Hobson Ltd Optical objective having a front member correcting spherical aberration, field curvature, and distortion
US2581000A (en) * 1946-04-06 1952-01-01 Jacob C Copeland Magnifying reflection viewer for stereoscopic pictures
US2510106A (en) * 1946-05-31 1950-06-06 Farnsworth Res Corp Catoptric television projector having tube screen and object surface connected by light-conducting filaments
US2590130A (en) * 1949-03-05 1952-03-25 Max A Schlesinger Apparatus for projecting images from television receivers
US2698553A (en) * 1949-10-28 1955-01-04 Jacob C Copeland Reflecting magnifying viewer
US2602903A (en) * 1950-11-13 1952-07-08 Kenneth T Snow Cathode-ray tube
US2728012A (en) * 1952-08-30 1955-12-20 Rca Corp Cathode ray tube
CA573953A (en) * 1952-10-28 1959-04-14 H. Naidich Herbert Projecting method for cathode-ray tubes
US2884833A (en) * 1953-09-16 1959-05-05 Pohl Frederic Optical system for viewing pictures
GB1080204A (en) * 1965-06-09 1967-08-23 Rudolph Rodenstock Means for flattening the image field of electron image tubes
US3727087A (en) * 1970-11-16 1973-04-10 Corning Glass Works Means for securing planar member to cathode ray tube faceplate
JPS5056810A (en) * 1973-09-17 1975-05-17
US4185220A (en) * 1977-06-30 1980-01-22 Westinghouse Electric Corp. Cathode ray display tube with contrast enhancement panel
US4150320A (en) * 1977-07-18 1979-04-17 Gte Sylvania Incorporated Integral lens cathode ray tube system
US4249205A (en) * 1978-12-11 1981-02-03 Marvin P. Hodges Aspheric projection lens system utilizing concave image
JPS581122A (en) * 1981-06-26 1983-01-06 Mitsubishi Electric Corp Projection type television receiver
JPS59142513A (en) * 1983-02-04 1984-08-15 Hitachi Ltd Picture projecting device
US4755868A (en) * 1984-02-08 1988-07-05 Tds Patent Management, Inc. High brightness projection TV system using one or more CRTs with a concave phosphor surface acting to concentrate light into a lens system
JP3427440B2 (en) * 1993-09-29 2003-07-14 ソニー株式会社 Cathode ray tube for projector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538852A (en) * 1945-12-29 1951-01-23 Rauland Corp Kinescope projection by refractive optical system mounted on tube neck
FR2406887A1 (en) * 1977-10-19 1979-05-18 Matsushita Electric Ind Co Ltd CRT giving reduced distraction due to reflections - has screen with concave outer surface with radius of curvature selected according to viewing distance
DE3221626A1 (en) * 1981-06-08 1983-02-03 Mitsubishi Denki K.K., Tokyo Projection cathode ray tube

Also Published As

Publication number Publication date
US2172775A (en) 1939-09-12

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