US2795731A - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
US2795731A
US2795731A US396120A US39612053A US2795731A US 2795731 A US2795731 A US 2795731A US 396120 A US396120 A US 396120A US 39612053 A US39612053 A US 39612053A US 2795731 A US2795731 A US 2795731A
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US
United States
Prior art keywords
cathode ray
ray tube
present
deflection
aiken
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 - Lifetime
Application number
US396120A
Inventor
Aiken William Ross
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.)
Kaiser Aircraft & Electronics
Kaiser Aircraft & Electronics Corp
Original Assignee
Kaiser Aircraft & Electronics
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 Kaiser Aircraft & Electronics filed Critical Kaiser Aircraft & Electronics
Priority to US396120A priority Critical patent/US2795731A/en
Priority to GB14168/54A priority patent/GB794257A/en
Priority to FR1105904D priority patent/FR1105904A/en
Priority to DEW14017A priority patent/DE1055586B/en
Priority to NL187677A priority patent/NL99232C/xx
Priority to GB34058/54A priority patent/GB801841A/en
Priority to NL192942A priority patent/NL112043C/xx
Priority to FR1123600D priority patent/FR1123600A/en
Priority to DEW15486A priority patent/DE1126444B/en
Application granted granted Critical
Publication of US2795731A publication Critical patent/US2795731A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/06—Tubes with a single discharge path having electrostatic control means only
    • H01J21/10—Tubes with a single discharge path having electrostatic control means only with one or more immovable internal control electrodes, e.g. triode, pentode, octode
    • H01J21/12—Tubes with variable amplification factor
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only
    • 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
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/124—Flat display tubes using electron beam scanning
    • 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
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/128—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digitally controlled display tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0032—Tubes with variable amplification factor

Definitions

  • Fig. 1 is a diagrammatic presentation in block form of the general arrangement of a cathode ray tube and control components therefor as contemplated by the present invention, wherein an electron beam from a suitable electron source is delivered throughout the horizontal dimension of an image screen by a deflection system comprising at least one deflection element arranged to accomplish such deflection in a plane substantially parallel and adjacent to the image screen, and wherein the electron beam is further delivered throughout the vertical dimension of the image screen by a deflection system comprising at least one deflection element arranged to deflect said beam toward said image screen.
  • Fig. 2 is a schematic exploded perspective view of a monochrome cathode ray tube and associated components embodying certain features of the present invention, wherein the electron source is arranged to provide an electron beam in substantially parallel proximity with the viewing screen, wherein the horizontal sweep deflection system comprises a plurality of electrostatic deflection plates, the deflection control voltage to each of which is provided from a lineally arranged triode control tube comprising a variably spaced control grid, and wherein the vertical sweep deflection system comprises a plurality of electrostatic elongated plates arranged in a plane substantially parallel and slightly spaced from the viewing screen, the control voltages for said plurality of vertical sweep deflection plates being provided from a lineally arranged triode control tube comprising a variably spaced control grid.
  • Fig. 4 is a schematic exploded perspective view of a further embodiment of the present invention as applied

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Description

22:2 23 VOLTAGE.
19 Sheets-Sheet 1 s 1 RN, mm aaef VI 5 a a a a a a A IL I L hull ll. ,1 j j q M 1 c J 1 z p I z a i r L L l L f I a W w. R. AIKEN CATHODE RAY TUBE 5WRP mzw-xi rmfl SYSTEM m n ream non 12031206)- vow-5 1 sozmc}:
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3 z p ,3: c J i r f C Z Z i v 0, 2 I 9 l June 11, 1957 w. R. AIKEN 2,795,731
CATHODE RAY TUBE Filed Dec. 4, 1953 19 SheetsP-SheQt 2 N, WWW WM W1 x v V E w n w mm W -J i g m M I i i A f 2 H z I L j 3 I W 4 W a z, 3 n G T 4 m... a 0, I A, w f PG M I 4/ 6%.}, I; 7 n W W a 5 vh w 5 w m Mu I m w I: 026 I a a 5 w M 7 a 7? w w 7 E 7 m 7 I 7 19 Sheets-Sheet, 3
Filed D80. 4, 1953 FI G. 4.
INVENTOR. WILLIBM R- BIKE-N BY g TTORNEY 7 G W o m. A. nu, n. s. "m 4 a P R m. 3 E n, m n n o n I/ fi m 1 a w m m M 125 VERTICAL SWEEP VOLTAGE June 11, 1957 w AIKEN 2,795,731
CATHODE RAY TUBE Filed Dec. 4, 1953 19 Sheets-Sheet 4 n MRIZONTAL FIC15.
145 vourne: as! y I F 6 'VOLTBGES INVENTOR. 164 ILLIAM R- HIKE) ATTORNEY June 11, 1957 w. R. AIKEN CATHODE RAY TUBE 19 Sheets-Sheet 5 Filed Dec. 4, 1953 A1 5 9 i- RIZ N TAL sways? VQLTHGEI Tllll 4mm .3 H m A R Z llll M, A m G v mm L I h n Y T) Ill W B a i A I n fl L ...L A g c N m m V// n m r m V 0 v 3 w "no mQAo ZoHao MAmMR June 11, 1957 w. R. AIKEN 2,795,731
CATHO DE RAY TUBE IN VEN TOR. WILLIBM R- JAIREN RNF Y June 11, 1957 w, AlKEN 2,795,731
CATHODE RAY TUBE Filed Dec. 4, 1953 19 Sheets-Sheet 8 TI 294, 295 T' "T :b Jzee '29? 351 INVENTOR. ILLIBM R. AIKEN 2342 BY 8 g JHTTORNEY June 11, 1957 w. R. AIKEN CATHODE RAY TUBE 19 Sheets-Sheet 9 Filed Dec. 4. 1953 .llll
1N VEN TOR. WILLIAM R- AIKEN BY 5 d BTTDRNEY June 11, 1957 w. R. AIKEN 2,795,731
CATHQDE RAY TUBE 3706 INVENTOR.
LL AM R FUREN JQT T ORN EY June 11, 1957 w, R A|KEN 2,795,731
CATHODE RAY TUBE Filed Dec. 4, 1953 19 Sheets-Sheet 12 FIG. 3'7.
v INVENTOR. ILJJBM RmRm )KTT RNEY June 11, 1957 w. R. AIKEN CATHODE RAY TUBE 19 Sheets-Sheet 14 Filed Dec. 4, 1953 INVENTOR. ILLIBN R- AIKEN FSTT RNE' June 11, 1957 w. R. AIKEN CATHODE RAY TUBE 19 Sheets-Sheet 15 Filed Dec. 4, 1953 02c l 70 3e 201a W B AVA sww ETTORNEY June 11, 1957 w. R. AIKEN 2,795,731
CATHODE RAY TUBE! Filed Dec. 4, 1953 19 Sheets-Sheet 16 792 782 730 j Q "256 A 785 12% INVENTOR. ILLIFWK R m KEN ETTORNEY United States Patent CATHODE RAY TUBE William Ross Aiken, Berkeley, Calif., assignor, by mesne assignments, to Kaiser Aircraft & Electronics Corporation, a corporation of New York Application December 4, 1953, Serial No. 396,120
147 Claims. (Cl. 315-41) The present invention generally relates to electric space discharge devices and more particularly relates to cathode ray tubes and beam deflection systems therefor. Certain features of the present invention relate primarily to cathode ray tubes for use in the fields of monochrome and polychrome television image presentation and control components therefor.
Heretofore, cathode ray tubes of general application, and particularly cathode ray tubes adapted for use in monochrome and polychrome image presentation, primarily have been of types wherein the electron source or sources and associated deflection systems are arranged to deliver the beam substantially perpendicular to or at substantial angles on the order of 45 or more with respect to the viewing screen.
Commercially practicable cathode ray tubes for presentation of color video signals and capable of use with dot-sequential or simultaneous color systems, such as the system recently developed by the NTSC, as heretofore proposed have all required use of dissimilar phosphor areas of line or elemental dimension, and further require complex grid or masking structures of fine constructional detail. Such presentation systems are necessarily diflicult to produce because of such fine constructional detail, and are complicated to maintain in proper operating condition because of inherent critical alignment of the scan pattern of the electron beam or beams with the grid or masking structures throughout the raster area.
It is an object of this invention to present cathode ray tubes of simplified design.
It is another object of this invention to present cathode ray tubes of lesser volume and greater compactness than found in conventional cathode ray devices of comparable viewing area.
It is also an object of this invention to present cathode ray tubes which are extremely shallow in depth.
It is another object of this invention to present cathode ray tubes of design capable of ease of manufacture in large quantities.
It is another object of this invention to present cathode ray tubes of improved design adaptable for polychrome image presentation of either additive or subtractive type.
It is another object of this invention to present cathode ray tubes of simplified design suitable for polychrome image presentation capable of use with either simultaneous or sequential televsion video signal systems.
It is a further object of this invention to present cathode ray tubes of improved design suitable for polychrome image presentation and not requiring use of dissimilar phosphor areas of line or elemental dimension or use of fine detail grid or masking structures associated with a viewing screen.
It is a further object of this invention to present color image presentation systems which may be arranged to inherently provide superposed color images and image raster linearity.
It is a further object of this invention to present cathode 2,795,731 Patented June 11, 1957 ray tubes of improved design suitable for three dimensional image presentation.
It is an additional object of this invention to present cathode ray tubes of improved design suitable for polychrome radar signal presentation.
It is an additional object of this invention to present television camera image tubes of improved design, suitable for either monochrome or polychrome video signal generation.
It is an additional object of this invention to present control components particularly adapted for control of deflection of one or more electron beams in cathode ray scanning systems of the types presented.
It is yet another object of this invention to present multi-anode space discharge switching devices, particularly adapted for use with cathode ray scanning systems in accordance with the present invention and of wide application in electronic control circuits.
These and other objects of the invention will be apparent from the following description and accompanying drawings which serve to illustrate various exemplary embodiments thereof.
Fig. 1 is a diagrammatic presentation in block form of the general arrangement of a cathode ray tube and control components therefor as contemplated by the present invention, wherein an electron beam from a suitable electron source is delivered throughout the horizontal dimension of an image screen by a deflection system comprising at least one deflection element arranged to accomplish such deflection in a plane substantially parallel and adjacent to the image screen, and wherein the electron beam is further delivered throughout the vertical dimension of the image screen by a deflection system comprising at least one deflection element arranged to deflect said beam toward said image screen.
Fig. 2 is a schematic exploded perspective view of a monochrome cathode ray tube and associated components embodying certain features of the present invention, wherein the electron source is arranged to provide an electron beam in substantially parallel proximity with the viewing screen, wherein the horizontal sweep deflection system comprises a plurality of electrostatic deflection plates, the deflection control voltage to each of which is provided from a lineally arranged triode control tube comprising a variably spaced control grid, and wherein the vertical sweep deflection system comprises a plurality of electrostatic elongated plates arranged in a plane substantially parallel and slightly spaced from the viewing screen, the control voltages for said plurality of vertical sweep deflection plates being provided from a lineally arranged triode control tube comprising a variably spaced control grid.
Fig. 3 is a schematic exploded perspective view of a further embodiment of the present invention as applied to a monochrome cathode ray tube and associated components, wherein the electron source is arranged to provide an electron beam in substantially parallel proximity with the viewing screen, wherein the horizontal sweep deflection system comprises a plurality of electrostatic deflection elements, the deflection voltages being provided from a radially arranged pentode control tube comprising two inversely variably spaced control grids, the resulting initial deflection of the beam being at acute angles, and wherein the vertical sweep deflection system comprises a plurality of elongated plates arranged in a plane substantially parallel and adjacent to the viewing screen, the control voltages for said plurality of vertical sweep deflection plates being provided by scanning a plurality of collector plates respectively associated therewith by an electron beam.
Fig. 4 is a schematic exploded perspective view of a further embodiment of the present invention as applied
US396120A 1953-05-19 1953-12-04 Cathode ray tube Expired - Lifetime US2795731A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US396120A US2795731A (en) 1953-05-19 1953-12-04 Cathode ray tube
GB14168/54A GB794257A (en) 1953-05-19 1954-05-14 Improvements relating to cathode ray tubes
DEW14017A DE1055586B (en) 1953-05-19 1954-05-18 Cathode ray tube
NL187677A NL99232C (en) 1953-05-19 1954-05-18
FR1105904D FR1105904A (en) 1953-05-19 1954-05-18 Advanced electron or cathode ray tube
GB34058/54A GB801841A (en) 1953-05-19 1954-11-24 Improvements in or relating to cathode ray tubes
NL192942A NL112043C (en) 1953-05-19 1954-12-04
FR1123600D FR1123600A (en) 1953-05-19 1954-12-04 Advanced space electric discharge devices
DEW15486A DE1126444B (en) 1953-05-19 1954-12-04 Cathode ray tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US794257XA 1953-05-19 1953-05-19
US396120A US2795731A (en) 1953-05-19 1953-12-04 Cathode ray tube

Publications (1)

Publication Number Publication Date
US2795731A true US2795731A (en) 1957-06-11

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US396120A Expired - Lifetime US2795731A (en) 1953-05-19 1953-12-04 Cathode ray tube

Country Status (5)

Country Link
US (1) US2795731A (en)
DE (2) DE1055586B (en)
FR (2) FR1105904A (en)
GB (2) GB794257A (en)
NL (2) NL99232C (en)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858464A (en) * 1955-09-26 1958-10-28 Westinghouse Electric Corp Cathode ray tube
US2863091A (en) * 1956-03-07 1958-12-02 Rca Corp Flat tri-color kinescopes
US2872607A (en) * 1956-10-25 1959-02-03 Nat Res Dev Magnetic electron lenses
US2877376A (en) * 1955-09-06 1959-03-10 Itt Phosphor screen device
US2878417A (en) * 1956-03-23 1959-03-17 Nat Res Dev Cathode ray tubes
US2879446A (en) * 1956-02-08 1959-03-24 Kaiser Ind Corp Electronic device
US2880365A (en) * 1955-08-29 1959-03-31 Rca Corp Simplified scanning means for flat type kinescope
US2880341A (en) * 1955-03-14 1959-03-31 Kaiser Ind Corp Facsimile tube
US2926255A (en) * 1956-10-25 1960-02-23 Nat Res Dev Electron lenses
US2928014A (en) * 1955-05-02 1960-03-08 Kaiser Ind Corp Electronic device cathode ray tubes
US2930930A (en) * 1957-05-03 1960-03-29 Kaiser Ind Corp Electronic device
US2935643A (en) * 1957-05-31 1960-05-03 Motorola Inc Cathode ray tube
US2945974A (en) * 1957-01-14 1960-07-19 Kaiser Ind Corp Electronic device
US2945982A (en) * 1955-09-21 1960-07-19 Kaiser Ind Corp Electronic device
US2957097A (en) * 1957-01-30 1960-10-18 Philips Corp Cathode ray tube
US2961575A (en) * 1955-06-30 1960-11-22 Zenith Radio Corp Electron discharge device
US2965801A (en) * 1954-12-23 1960-12-20 Philips Corp Method of and apparatus for position-selection, scanning and the like
US2967262A (en) * 1956-07-30 1961-01-03 Madey Richard Multi-color display tube
US2978601A (en) * 1957-12-12 1961-04-04 Kaiser Ind Corp Electronic control system
US2982875A (en) * 1959-12-29 1961-05-02 Nat Res Dev Cathode ray tubes
US2997621A (en) * 1956-04-04 1961-08-22 Motorola Inc Image display device
US2999957A (en) * 1956-08-01 1961-09-12 Philips Corp Cathode ray tube
US3005127A (en) * 1955-04-27 1961-10-17 Kaiser Ind Corp Electronic device
US3021387A (en) * 1956-04-13 1962-02-13 Rca Corp Electrical display device
US3088047A (en) * 1958-03-04 1963-04-30 Philips Corp Circuit arrangement for the formation of pulses
US3181027A (en) * 1963-01-14 1965-04-27 Video Color Corp Multiple beam flat color television tube and sweep system therefor
US3205391A (en) * 1957-11-18 1965-09-07 Multi Tron Lab Inc Negative-lens type deflection magnifying means for electron beam in cathode ray tubes
US3226596A (en) * 1963-06-21 1965-12-28 Kasperowicz Henry Flat color cathode ray tube
US3226587A (en) * 1960-01-28 1965-12-28 Rca Corp Cathode ray tube and magnetic deflection means therefor
US3313970A (en) * 1964-06-29 1967-04-11 William R Aiken Flat cathode ray tube traversed by tunnel containing magnetic deflector
US3408456A (en) * 1965-10-23 1968-10-29 Leo A. Shanafelt Method for providing high definition colored television image
US3531681A (en) * 1968-06-25 1970-09-29 Joseph T Harden Jr Flat display tube and method
US4752721A (en) * 1984-09-12 1988-06-21 Matsushita Electric Industrial Co., Ltd. Charged particle beam deflector and flat CRT using the same
US4853587A (en) * 1987-03-02 1989-08-01 U.S. Philips Corporation Flat cathode ray display tube with periodic beam refocusing means
US4956575A (en) * 1989-03-23 1990-09-11 Chang Kern K N Flat panel display with deflection modulation structure

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
GB2213632A (en) * 1987-12-11 1989-08-16 Philips Electronic Associated Flat cathode ray tube display apparatus

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GB315362A (en) * 1928-07-12 1930-07-24 Koloman Tihanyi Improvements in television apparatus
US1962873A (en) * 1933-08-11 1934-06-12 Rogers Radio Tubes Ltd Cathode ray oscillograph
US2059575A (en) * 1933-03-29 1936-11-03 Western Electric Co Electronic indicating device
US2071382A (en) * 1937-02-23 Electron discharge device
US2090001A (en) * 1933-04-22 1937-08-17 Allg Elek Citatz Ges Friedrich Transversally controlled electron tube
US2211844A (en) * 1934-10-30 1940-08-20 Rca Corp Cathode ray tube
US2307188A (en) * 1940-11-30 1943-01-05 Rca Corp Television system
US2363962A (en) * 1934-02-24 1944-11-28 Rca Corp High frequency apparatus
US2394196A (en) * 1943-07-09 1946-02-05 Curtis Engineering Company Multiscale instrument indicating system
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US2711478A (en) * 1952-04-18 1955-06-21 Guenther H Krawinkel Storing electrical signals and transferring the stored signals into a different circuit
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US2059575A (en) * 1933-03-29 1936-11-03 Western Electric Co Electronic indicating device
US2090001A (en) * 1933-04-22 1937-08-17 Allg Elek Citatz Ges Friedrich Transversally controlled electron tube
US1962873A (en) * 1933-08-11 1934-06-12 Rogers Radio Tubes Ltd Cathode ray oscillograph
US2363962A (en) * 1934-02-24 1944-11-28 Rca Corp High frequency apparatus
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US2558019A (en) * 1939-02-02 1951-06-26 Products & Licensing Corp Signal distributing system for television receiver tube having equal number of picture elements and cathode rays
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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965801A (en) * 1954-12-23 1960-12-20 Philips Corp Method of and apparatus for position-selection, scanning and the like
US2880341A (en) * 1955-03-14 1959-03-31 Kaiser Ind Corp Facsimile tube
US3005127A (en) * 1955-04-27 1961-10-17 Kaiser Ind Corp Electronic device
US2928014A (en) * 1955-05-02 1960-03-08 Kaiser Ind Corp Electronic device cathode ray tubes
US2961575A (en) * 1955-06-30 1960-11-22 Zenith Radio Corp Electron discharge device
US2880365A (en) * 1955-08-29 1959-03-31 Rca Corp Simplified scanning means for flat type kinescope
US2877376A (en) * 1955-09-06 1959-03-10 Itt Phosphor screen device
US2945982A (en) * 1955-09-21 1960-07-19 Kaiser Ind Corp Electronic device
US2858464A (en) * 1955-09-26 1958-10-28 Westinghouse Electric Corp Cathode ray tube
US2879446A (en) * 1956-02-08 1959-03-24 Kaiser Ind Corp Electronic device
US2863091A (en) * 1956-03-07 1958-12-02 Rca Corp Flat tri-color kinescopes
US2878417A (en) * 1956-03-23 1959-03-17 Nat Res Dev Cathode ray tubes
US2997621A (en) * 1956-04-04 1961-08-22 Motorola Inc Image display device
US3021387A (en) * 1956-04-13 1962-02-13 Rca Corp Electrical display device
US2967262A (en) * 1956-07-30 1961-01-03 Madey Richard Multi-color display tube
US2999957A (en) * 1956-08-01 1961-09-12 Philips Corp Cathode ray tube
US2926255A (en) * 1956-10-25 1960-02-23 Nat Res Dev Electron lenses
US2872607A (en) * 1956-10-25 1959-02-03 Nat Res Dev Magnetic electron lenses
US2945974A (en) * 1957-01-14 1960-07-19 Kaiser Ind Corp Electronic device
US2957097A (en) * 1957-01-30 1960-10-18 Philips Corp Cathode ray tube
US2930930A (en) * 1957-05-03 1960-03-29 Kaiser Ind Corp Electronic device
US2935643A (en) * 1957-05-31 1960-05-03 Motorola Inc Cathode ray tube
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US3226587A (en) * 1960-01-28 1965-12-28 Rca Corp Cathode ray tube and magnetic deflection means therefor
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US3226596A (en) * 1963-06-21 1965-12-28 Kasperowicz Henry Flat color cathode ray tube
US3313970A (en) * 1964-06-29 1967-04-11 William R Aiken Flat cathode ray tube traversed by tunnel containing magnetic deflector
US3408456A (en) * 1965-10-23 1968-10-29 Leo A. Shanafelt Method for providing high definition colored television image
US3531681A (en) * 1968-06-25 1970-09-29 Joseph T Harden Jr Flat display tube and method
US4752721A (en) * 1984-09-12 1988-06-21 Matsushita Electric Industrial Co., Ltd. Charged particle beam deflector and flat CRT using the same
US4853587A (en) * 1987-03-02 1989-08-01 U.S. Philips Corporation Flat cathode ray display tube with periodic beam refocusing means
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Also Published As

Publication number Publication date
NL99232C (en) 1961-10-16
NL112043C (en) 1965-11-15
FR1105904A (en) 1955-12-09
GB801841A (en) 1958-09-24
GB794257A (en) 1958-04-30
DE1055586B (en) 1959-04-23
DE1126444B (en) 1962-03-29
FR1123600A (en) 1956-09-24

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