US2446791A - Color television tube - Google Patents

Color television tube Download PDF

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Publication number
US2446791A
US2446791A US675862A US67586246A US2446791A US 2446791 A US2446791 A US 2446791A US 675862 A US675862 A US 675862A US 67586246 A US67586246 A US 67586246A US 2446791 A US2446791 A US 2446791A
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wires
grid
color
screen
light
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US675862A
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Alfred C Schroeder
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RCA Corp
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RCA Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems

Definitions

  • Figure 1 is a diagrammatic illustration of a part of a screen and grid embodying the invention.
  • Figure 2 is a modied form of screen.
  • My improvement will be rst described in connection with a pick-up transmitting tube, such as the well-known iconoscope.
  • the target or screen consists of a transparent body l, such as the glass of the end of the evacuated tube envelope, or it may be a separate sheet of glass or mica inserted therein.
  • a grid comprising a plurality of wires 2, alternate ones of which are connected to conductors 3 and d. These wires would be connected to the conductors :at the sides of the screen, but in the diagrammatic illustration the connection has been shown between the wires and screen for Y convenience of illustration.
  • On the base I is placed a plurality of color lines or sections extending from one side of the screen to the other. These color sections are the same size as the diameter of the wires, which is preferably the same size as the spacing between the wires.
  • color sections or strips directly opposite each wire and each space may consist of materials of diierent sensitivity to light, such that light from a red portion of :an object being televised, for example, causes the most plhotoelectrons to be emitted, that from a green object less photoelectrons and that from a blue object still less photoelectrons.
  • the material may have uniform sensitivity to light of the representative colors and the quantity of light' varied by placing lters in front of the sections.
  • the strips opposite the spaces between the Wires are all adapted to produce the same color signal, red by way of example.
  • the strips directly opposite the wires are alternately of different colors, say green and blue. The color arrangement, of course, may be made in any other order.
  • a unit 5 Shown diagrammatically in the drawing, is adapted to place a. plurality of potentials on the conductors 3 and li.
  • the changes in potential are produced in synchronism with the frame scanning frequency of the pick-up tube.
  • the scanning means both at the transmitter and the receiver, may be of the usual type and are not shown.
  • the conductors 3 and 4 will have the same potential and the beam electrons will pass through the spaces between the wires and strike the red sections 1' on the screen. This is illustrated at A of Fig. l.
  • These sections will therefore produce signals proportional to the red light of the image for one entire scansion, as the beam shifts its line scansion from top to bottom of the screen.
  • the wires 2 will prevent the electrons from striking the green and blue color strips, because they are directly behind the wires. Thus, during this entire scansion, when the wires have the same potential, nothing but red signals will be transmitted.
  • the condition is illustrated at B.
  • the potentials are placed on the conductors 3 and il such that 3 is positive with respect to
  • the field produced between the grid and screen thus deects the electrons so that they strike the green sections only. This relation of potentials is maintained for one complete frame and therefore, as the beam scans the screen from top to bottom, green signals will be picked up for this entire scansion.
  • I may place iilter strips 6 on the body l in any way, for example by putting dyes of appropriate color on the body, as indicated in Fig. 2. This may be done either on the outside or inside of the tube end I, but I have illustrated it on the beam side. Then, one may deposit over the surface of the red, green and blue lter sections a photo-sensitive material 'l that is uniformly sensitive to color.
  • the colors of the lters and also the grid wires and their connection to the unit. will be arranged in exactly the same way as illustrated in Fig. 1, but these have not been illustrated as the operation of Fig. 2 will be clear from the previous di scription of Fig. 1.
  • the color sections of the screen S may consist of different phosphor materials, the r sections having a phosphor that emits red light under impact of electrons, the b sections a phosphor that emits blue light under similar impact and the g sections one that emits green light under the impact of electrons.
  • the screen may be made as shown in Fig. 2, but for the receiving kinescope tube the mosaic 1 will be made of a phosphor material producing substantially white light and the strips in the column 6 would consist of red, green and blue filters, as already described.
  • the received signals will be brought into a receiving set and will be, after amplification, applied to the grid in the gun of the kinescope in the usual fashion.
  • the potentials between conductors 3 and 4 are varied in the same way as at the pick-up tube in synchronism therewith. Therefore, when a red signal is picked up at the transmitting tube and is received in the usual way, not shown, the potential on conductors 3 and 4 will be identical and the phosphor material struck by the electrons passing between the wires will emit its red color. which will be viewed through the body I, say the end of the tube.
  • conductor 3 When green signals are received, as at B, conductor 3 will have a greater potential than conductor 4 and for this frame scansion green signals only will be produced.
  • conductor 4 will have greater potential than conductor 3 and only the phosphor emitting blue light will be struck by the electrons passing between the wires. In this Way, one viewing the image through the end of the tube i will view in succession rod, green and blue images. which blend together to produce the colored picture.
  • pick-up tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires ⁇ oined together, another grid having parallel Wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, and a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires having maximum sensitivity to light of one color, the color strips opposite the wires of one grid having maximum sensitivity to light of another color and those opposite the wires of the other grid having maximum sensitivity to light of a different color.
  • a grid having parallel Wires joined together, another grid hav- 5 ing parallel wires joined together, .the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, and a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires responding to light of one color, the color strips opposite the wires of one grid responding to light of another color and those opposite the wires of the other grid responding to light of a different color.
  • a grid having parallel wires joined together, another grid having parallel wires joined together, the'wires of one grid alternating with those of the other with uniform spacing between the Wires, a phosphor screen in a plane parallel with and adjacent to said grids, and a plurality of filter strips on said screen parallel to the wires of the grids, the filter strips opposite the spaces between the wires adapted to pass light of one color, the iilter strips opposite the wires of one grid adapted to pass light of another color and those opposite the wires of the other grid adapted to pass light of a different color.

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

Description

u my l948 A, c` scHRol-:DER 2,446,791
COLOR TELEVISION TUBE Filed June 1l, 1946 FAG. 2
A ORNEY Patented ug. l0, i948 UNlTED 'ras rm NT FPlCE coma TELEVISION TUBE Alfred C. Schroeder, Feasterville, Pa., assignor to Radio Corporation of America, a corporation of Delaware a plurality of conductors, the potentials of which are adapted to be varied for directing the electrons of the beam successively onto the red, green and blue strips.
Other objects will appear in the following specification, reference being had to the drawings, in which:
Figure 1 is a diagrammatic illustration of a part of a screen and grid embodying the invention.
Figure 2 is a modied form of screen.
My improvement will be rst described in connection with a pick-up transmitting tube, such as the well-known iconoscope.
In Fig. 1 of the drawing, the target or screen consists of a transparent body l, such as the glass of the end of the evacuated tube envelope, or it may be a separate sheet of glass or mica inserted therein. Positioned in front of the screen is a grid comprising a plurality of wires 2, alternate ones of which are connected to conductors 3 and d. These wires would be connected to the conductors :at the sides of the screen, but in the diagrammatic illustration the connection has been shown between the wires and screen for Y convenience of illustration. On the base I is placed a plurality of color lines or sections extending from one side of the screen to the other. These color sections are the same size as the diameter of the wires, which is preferably the same size as the spacing between the wires. With this arrangement there is a color section or strip directly opposite each wire and each space. These color strips may consist of materials of diierent sensitivity to light, such that light from a red portion of :an object being televised, for example, causes the most plhotoelectrons to be emitted, that from a green object less photoelectrons and that from a blue object still less photoelectrons. Alternatively, the material may have uniform sensitivity to light of the representative colors and the quantity of light' varied by placing lters in front of the sections. The strips opposite the spaces between the Wires are all adapted to produce the same color signal, red by way of example. The strips directly opposite the wires are alternately of different colors, say green and blue. The color arrangement, of course, may be made in any other order.
A unit 5, Shown diagrammatically in the drawing, is adapted to place a. plurality of potentials on the conductors 3 and li. The changes in potential are produced in synchronism with the frame scanning frequency of the pick-up tube. The scanning means, both at the transmitter and the receiver, may be of the usual type and are not shown. During one frame scansion of the pickup tube the conductors 3 and 4 will have the same potential and the beam electrons will pass through the spaces between the wires and strike the red sections 1' on the screen. This is illustrated at A of Fig. l. These sections will therefore produce signals proportional to the red light of the image for one entire scansion, as the beam shifts its line scansion from top to bottom of the screen. The wires 2 will prevent the electrons from striking the green and blue color strips, because they are directly behind the wires. Thus, during this entire scansion, when the wires have the same potential, nothing but red signals will be transmitted.
In the next frame scansion, the condition is illustrated at B. During this scansion the potentials are placed on the conductors 3 and il such that 3 is positive with respect to The field produced between the grid and screen thus deects the electrons so that they strike the green sections only. This relation of potentials is maintained for one complete frame and therefore, as the beam scans the screen from top to bottom, green signals will be picked up for this entire scansion.
In the next scansion, potentials are placed on the conductors such that conductor 3 is negative to conductor The result of this change of potentials upon the landing of electrons is illustratecl at C in Fig. 1. The electrons passing between the wires are deiiected so as to strike the blue sections only and this relation will be maintained throughout one complete scansion. Thus, blue signals will be picked up and transmitted.
Instead of making the sections of photo-sensitive material of different sensitivity to light of di'erent colors, I may place iilter strips 6 on the body l in any way, for example by putting dyes of appropriate color on the body, as indicated in Fig. 2. This may be done either on the outside or inside of the tube end I, but I have illustrated it on the beam side. Then, one may deposit over the surface of the red, green and blue lter sections a photo-sensitive material 'l that is uniformly sensitive to color. The colors of the lters and also the grid wires and their connection to the unit. will be arranged in exactly the same way as illustrated in Fig. 1, but these have not been illustrated as the operation of Fig. 2 will be clear from the previous di scription of Fig. 1.
When my improved target and grid arrange- ,ment is to be used for converting picked up signais into pictures, the color sections of the screen S may consist of different phosphor materials, the r sections having a phosphor that emits red light under impact of electrons, the b sections a phosphor that emits blue light under similar impact and the g sections one that emits green light under the impact of electrons. Alternatively, the screen may be made as shown in Fig. 2, but for the receiving kinescope tube the mosaic 1 will be made of a phosphor material producing substantially white light and the strips in the column 6 would consist of red, green and blue filters, as already described.
In producing pictures, the received signals will be brought into a receiving set and will be, after amplification, applied to the grid in the gun of the kinescope in the usual fashion. The potentials between conductors 3 and 4 are varied in the same way as at the pick-up tube in synchronism therewith. Therefore, when a red signal is picked up at the transmitting tube and is received in the usual way, not shown, the potential on conductors 3 and 4 will be identical and the phosphor material struck by the electrons passing between the wires will emit its red color. which will be viewed through the body I, say the end of the tube. When green signals are received, as at B, conductor 3 will have a greater potential than conductor 4 and for this frame scansion green signals only will be produced. During the next frame scansion, when blue signals are received, conductor 4 will have greater potential than conductor 3 and only the phosphor emitting blue light will be struck by the electrons passing between the wires. In this Way, one viewing the image through the end of the tube i will view in succession rod, green and blue images. which blend together to produce the colored picture.
While I have shown arrangements for producing three colors, the invention is not limited thereto, as different numbers of colors may be produced. For example, by merely alternating the potential of the conductors 3 and 4 and omitting the step in which they have equal potential, a two-color picture may be produced.
Various other modifications may be made without departing from the spirit of the invention.
I claim:
1. In pick-up tubes having a gun for scanning a cathode ray beam over a screen. a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating With those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires having maximum sensitivity to red light, the color strips opposite the wires of one grid having maximum sensi'- tivity to green light and those opposite the wires of the other grid having maximum sensitivity to blue light and means for applying potentials to said grids for causing the beam electrons passing between the grid wires to land on the red, green and blue strips in succession.
2. In pick-up tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires Joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires having maximum sensitivity to light of one color, the color strips opposite the wires of one grid having maximum sensitivity to light of another color and those opposite the wires of the other grid having maximum sensitivity to light of a different color, and means for applying potentials to said grids for causing the beam electrons passing between the grid wires to land on the strips opposite the spaces. the wires of one grid and the wires of the second grid in succession.
3. In pick-up tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel vwires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires responding to light of one color, the color strips opposite the wires of one grid responding to light of another color and those opposite the wires of the other grid responding to light of a different color, and means for applying potentials to said grids for causing the beam electrons passing between the grid wires to land on the strips opposite the' spaces, the wires of one grid and the wires of the second grid in succession.
4. In pick-up tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, and a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires having maximum sensitivity to red light, the color strips opposite the wires of one grid having maximum sensitivity to green light and those opposite the wires of the other grid having maximum sensitivity to blue light.
5. In pick-up tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires `oined together, another grid having parallel Wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, and a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires having maximum sensitivity to light of one color, the color strips opposite the wires of one grid having maximum sensitivity to light of another color and those opposite the wires of the other grid having maximum sensitivity to light of a different color.
6. In pick-up tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel Wires joined together, another grid hav- 5 ing parallel wires joined together, .the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, and a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires responding to light of one color, the color strips opposite the wires of one grid responding to light of another color and those opposite the wires of the other grid responding to light of a different color.
7. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires adapted to produce red light, the color strips opposite the wires of one grid adapted to produce green light and those opposite the wires of the other grid adapted to produce blue light, and means for applying potentials to said grids for causing the beam electrons passing between the grid wires to land on the red, green and blue strips in succession.
8. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, a plurality of color strips on said screen parallel to the wires of the grids, the color strips opposite the spaces between the wires adapted to produce light of one color, the color strips opposite the wires of one grid adapted to produce light of another color and those opposite the wires of the other grid adapted to produce light of a different color, and means for applying potentials to said grids for causing the beam electrons passing between the grid wires to land on the strips opposite the spaces, the wires of one grid and the wires of the second grid in succession.
9. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, a plurality of color lter strips on said screen parallel to the wires of the grids, the lter strips opposite the spaces be-v tween the wires adapted to produce light of one colorl the filter strips opposite the wires of one grid adapted to produce light of another color and those opposite the wires of the other grid adapted to produce light of a different color, phosphor materia1 on said iter strips and means for applying potentials to said grids for causing the beam electrons passing between the grid wires to land on the phosphor material on said i'llter strips opposite the spaces, the wires of one grid and the wires of the second grid in succession.
10. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen. a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a phosphor screen in a plane parallel with and adjacent to s aid grids, and a plurality of color filter strips on said screen parallel to the wires of the grids, the lter strips opposite the spaces between the wires adapted to pass red light, the filter strips opposite the wires of one grid adapted to pass green light and those opposite the wires of the other grid adapted to pass blue light.
11. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the'wires of one grid alternating with those of the other with uniform spacing between the Wires, a phosphor screen in a plane parallel with and adjacent to said grids, and a plurality of filter strips on said screen parallel to the wires of the grids, the filter strips opposite the spaces between the wires adapted to pass light of one color, the iilter strips opposite the wires of one grid adapted to pass light of another color and those opposite the wires of the other grid adapted to pass light of a different color.
12. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a phosphor screen in a plane parallel with and adjacent to said grids, and a plurality of strips on said screen parallel to the wires of the grids adapted to produce colored light, the strips opposite the spaces between the wires adapted to produce red light, the strips opposite the wires of one grid adapted to produce green light and those opposite the wires of the other grid adapted to produce blue light.
13. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a phosphor screen in a plane parallel with and adjacent to said grids, and a plurality of strips on said screen parallel to the wires of the grids adapted to produce colored light, the strips opposite the spaces between the wires adapted to produce light of one color, the strips opposite the wires of one grid adapted to produce light of another color and those opposite the wires of the other grid adapted to produce light of a different color.
14. In television reproducing tubes having a gun for scanning a cathode ray beam over a screen, a grid having parallel wires joined together, another grid having parallel wires joined together, the wires of one grid alternating with those of the other with uniform spacing between the wires, a screen in a plane parallel with and adjacent to said grids, and a plurality of phosphor strips on said screen parallel to the wires of the grids, the strips opposite the spaces between the wires adapted to produce light of one color, the strips opposite the wires of one grid adapted to produce light of another color and those opposite the wires of the other grid adapted to produce light of a different color.
ALFRED C. SCHROEDER.
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Cited By (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532511A (en) * 1946-11-16 1950-12-05 Okolicsanyi Ferene Television
US2568448A (en) * 1947-09-23 1951-09-18 Gen Electric Parallax correction in color television
US2577368A (en) * 1950-02-14 1951-12-04 Charles Doerr Color television receiving apparatus
US2579705A (en) * 1950-01-27 1951-12-25 Rca Corp Color television system
US2581487A (en) * 1950-03-01 1952-01-08 Rca Corp Color television reproduction tube
US2584814A (en) * 1950-06-16 1952-02-05 Rca Corp Color television picture tube
US2602903A (en) * 1950-11-13 1952-07-08 Kenneth T Snow Cathode-ray tube
US2605434A (en) * 1949-12-08 1952-07-29 John H Homrighous Single beam three color cathoderay tube
US2617876A (en) * 1949-12-17 1952-11-11 Rca Corp System for color television
US2630542A (en) * 1947-07-19 1953-03-03 Rca Corp Multicolor television
US2643352A (en) * 1948-06-05 1953-06-23 Int Standard Electric Corp Color kinescope
US2650264A (en) * 1949-12-22 1953-08-25 Rca Corp Color television reproducing system
US2657331A (en) * 1948-06-05 1953-10-27 Int Standard Electric Corp Electronic color television
US2660684A (en) * 1948-02-06 1953-11-24 Int Standard Electric Corp Electronic color television
US2661392A (en) * 1946-12-18 1953-12-01 Emi Ltd Color television
US2663757A (en) * 1950-03-06 1953-12-22 Gen Teleradio Inc Television apparatus
US2669675A (en) * 1952-01-08 1954-02-16 Chromatic Television Lab Inc Display surface for color television tubes
US2683833A (en) * 1952-09-02 1954-07-13 Chromatic Television Lab Inc Electrode structure
US2684454A (en) * 1947-12-02 1954-07-20 Du Mont Allen B Lab Inc Control signal for color television
US2688048A (en) * 1950-10-05 1954-08-31 Rca Corp Color television image reproduction
US2691116A (en) * 1953-03-31 1954-10-05 Rca Corp Color-kinescopes, etc.
US2702873A (en) * 1952-02-05 1955-02-22 Chromatic Television Lab Inc Screen structure for color television cathode-ray tubes
US2705765A (en) * 1950-04-03 1955-04-05 Geer Charles Willard Single gun color television receiving tube and screen structure
US2705764A (en) * 1950-02-25 1955-04-05 Rca Corp Dual-area target electrodes and methods of making the same
US2713604A (en) * 1952-03-15 1955-07-19 Rca Corp Apparatus for applying signals to electrodes of an electron tube
US2719241A (en) * 1952-04-18 1955-09-27 Westinghouse Electric Corp Three color kinescope for sequential color systems
US2721293A (en) * 1953-12-22 1955-10-18 Chromatic Television Lab Inc Control circuit for color television display tubes
US2721288A (en) * 1951-10-23 1955-10-18 Chromatic Television Lab Inc Focusing grid structure for electron tubes
US2722623A (en) * 1953-03-31 1955-11-01 Rca Corp Color-kinescopes etc.
US2723305A (en) * 1952-09-17 1955-11-08 Chromatic Television Lab Inc Apparatus for projecting television images in color
US2723361A (en) * 1952-01-02 1955-11-08 Du Mont Allen B Lab Inc Cathode ray tube
US2725418A (en) * 1950-02-21 1955-11-29 Rca Corp Color television receiving system
US2728021A (en) * 1953-03-18 1955-12-20 Rca Corp Post-deflected cathode ray tube
US2728815A (en) * 1954-06-03 1955-12-27 Meguer V Kalfaian Color television image tube utilizing electroluminescence
US2730644A (en) * 1951-04-10 1956-01-10 Hyman A Michlin Electroluminescent light means
US2731582A (en) * 1953-03-23 1956-01-17 Chromatic Television Lab Inc Grid structure for color television tube
US2734940A (en) * 1953-10-05 1956-02-14 loughlin
US2734938A (en) * 1956-02-14 goodale
US2736890A (en) * 1951-07-28 1956-02-28 Hartford Nat Bank & Trust Co Color-television camera device
US2738436A (en) * 1952-09-02 1956-03-13 Chromatic Television Lab Inc Electrode structure
US2738377A (en) * 1951-03-27 1956-03-13 Pye Ltd Color television
US2741724A (en) * 1951-11-27 1956-04-10 Rauland Corp Image-reproducing device
US2751516A (en) * 1950-04-25 1956-06-19 Chromatic Television Lab Inc Polychrome cathode ray tube
US2752420A (en) * 1953-10-09 1956-06-26 Philco Corp Color television receiving systems
DE945034C (en) * 1951-05-02 1956-06-28 Philips Nv Device for taking color television pictures
US2754357A (en) * 1950-03-03 1956-07-10 Rca Corp Color television image reproducing systems
US2757303A (en) * 1954-04-19 1956-07-31 Chromatic Television Lab Inc Damp rod construction for cathode-ray tube grid structures
US2767346A (en) * 1953-10-05 1956-10-16 Hoyt Karl Robert Apparatus and method for regulating television target potential
US2769855A (en) * 1950-12-29 1956-11-06 Philco Corp Color television camera tube with indexing structure
US2770746A (en) * 1953-03-25 1956-11-13 Rca Corp Cathode ray tube and target
US2772375A (en) * 1954-01-14 1956-11-27 Chromatic Television Lab Inc Electrode structure for image-reproducing cathode-ray tubes
DE956412C (en) * 1951-07-28 1957-01-17 Philips Nv Electron beam tubes for displaying color television images
US2784341A (en) * 1947-12-02 1957-03-05 Du Mont Allen B Lab Inc Control signals for sequential color television
US2791710A (en) * 1953-03-23 1957-05-07 Chromatic Television Lab Inc Grid structure for television tube
US2806899A (en) * 1950-01-12 1957-09-17 Rca Corp Color television image reproducing system
DE1018096B (en) * 1953-07-04 1957-10-24 Electronique Soc Gen Device for projecting color television images
US2813989A (en) * 1955-05-02 1957-11-19 Rca Corp Color pickup tubes
DE1021017B (en) * 1953-07-10 1957-12-19 Marconi Wireless Telegraph Co Screen for color television recording and reproduction purposes
US2824251A (en) * 1952-01-08 1958-02-18 Chromatic Television Lab Inc Method and apparatus for fabricating grid structures for cathode-ray tubes
DE1027235B (en) * 1954-01-14 1958-04-03 Emimeta Fabrikations Anstalt Image storage and playback process
US2831998A (en) * 1955-01-03 1958-04-22 Eugene W Allen Multicolor cathode ray tube and viewing screen and post deflection focusing unit therefor
US2833959A (en) * 1954-07-06 1958-05-06 Chromatic Television Lab Inc Color television voltage control system
US2842697A (en) * 1955-12-07 1958-07-08 Philco Corp Beam-intercepting structure for cathode ray tube
US2848358A (en) * 1955-03-24 1958-08-19 Rca Corp Method of making ray sensitive targets
US2871371A (en) * 1954-05-06 1959-01-27 Rca Corp Wide-band interference light filter
US2873406A (en) * 1954-02-12 1959-02-10 Rca Corp Color television switching circuits
US2875360A (en) * 1953-05-25 1959-02-24 Westinghouse Electric Corp Image intensifier
US2884483A (en) * 1955-03-09 1959-04-28 Grimson Color Inc Color image pick up apparatus
US2901531A (en) * 1952-03-20 1959-08-25 Robert E Mccoy Cross-talk neutralization in color pick-up tube
DE1080595B (en) * 1953-12-22 1960-04-28 Chromatic Television Lab Inc Cathode ray tubes for displaying color television pictures
US2999185A (en) * 1950-01-09 1961-09-05 Harry R Lubcke Television device
DE1120499B (en) * 1959-04-30 1961-12-28 Saint Gobain Multi-color screen for receiving tubes for colored television
US3452242A (en) * 1966-09-17 1969-06-24 Sony Corp Color picture tube
US3814965A (en) * 1971-07-28 1974-06-04 Matsushita Electronics Corp Color image pick-up tube having a silicon target plate
US3971065A (en) * 1975-03-05 1976-07-20 Eastman Kodak Company Color imaging array
US20090021588A1 (en) * 2007-07-20 2009-01-22 Border John N Determining and correcting for imaging device motion during an exposure
US20090303377A1 (en) * 2008-06-04 2009-12-10 Meisenzahl Eric J Image sensors with improved angle response
US20100302418A1 (en) * 2009-05-28 2010-12-02 Adams Jr James E Four-channel color filter array interpolation
US20110115957A1 (en) * 2008-07-09 2011-05-19 Brady Frederick T Backside illuminated image sensor with reduced dark current
US8119435B2 (en) 2008-07-09 2012-02-21 Omnivision Technologies, Inc. Wafer level processing for backside illuminated image sensors
US8139130B2 (en) 2005-07-28 2012-03-20 Omnivision Technologies, Inc. Image sensor with improved light sensitivity
US8194296B2 (en) 2006-05-22 2012-06-05 Omnivision Technologies, Inc. Image sensor with improved light sensitivity
US8274715B2 (en) 2005-07-28 2012-09-25 Omnivision Technologies, Inc. Processing color and panchromatic pixels
US8416339B2 (en) 2006-10-04 2013-04-09 Omni Vision Technologies, Inc. Providing multiple video signals from single sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734938A (en) * 1956-02-14 goodale
US2532511A (en) * 1946-11-16 1950-12-05 Okolicsanyi Ferene Television
US2661392A (en) * 1946-12-18 1953-12-01 Emi Ltd Color television
US2630542A (en) * 1947-07-19 1953-03-03 Rca Corp Multicolor television
US2568448A (en) * 1947-09-23 1951-09-18 Gen Electric Parallax correction in color television
US2784341A (en) * 1947-12-02 1957-03-05 Du Mont Allen B Lab Inc Control signals for sequential color television
US2684454A (en) * 1947-12-02 1954-07-20 Du Mont Allen B Lab Inc Control signal for color television
US2660684A (en) * 1948-02-06 1953-11-24 Int Standard Electric Corp Electronic color television
US2643352A (en) * 1948-06-05 1953-06-23 Int Standard Electric Corp Color kinescope
US2657331A (en) * 1948-06-05 1953-10-27 Int Standard Electric Corp Electronic color television
US2605434A (en) * 1949-12-08 1952-07-29 John H Homrighous Single beam three color cathoderay tube
US2617876A (en) * 1949-12-17 1952-11-11 Rca Corp System for color television
US2650264A (en) * 1949-12-22 1953-08-25 Rca Corp Color television reproducing system
US2999185A (en) * 1950-01-09 1961-09-05 Harry R Lubcke Television device
US2806899A (en) * 1950-01-12 1957-09-17 Rca Corp Color television image reproducing system
US2579705A (en) * 1950-01-27 1951-12-25 Rca Corp Color television system
US2577368A (en) * 1950-02-14 1951-12-04 Charles Doerr Color television receiving apparatus
US2725418A (en) * 1950-02-21 1955-11-29 Rca Corp Color television receiving system
US2705764A (en) * 1950-02-25 1955-04-05 Rca Corp Dual-area target electrodes and methods of making the same
US2581487A (en) * 1950-03-01 1952-01-08 Rca Corp Color television reproduction tube
US2754357A (en) * 1950-03-03 1956-07-10 Rca Corp Color television image reproducing systems
US2663757A (en) * 1950-03-06 1953-12-22 Gen Teleradio Inc Television apparatus
US2705765A (en) * 1950-04-03 1955-04-05 Geer Charles Willard Single gun color television receiving tube and screen structure
US2751516A (en) * 1950-04-25 1956-06-19 Chromatic Television Lab Inc Polychrome cathode ray tube
US2584814A (en) * 1950-06-16 1952-02-05 Rca Corp Color television picture tube
US2688048A (en) * 1950-10-05 1954-08-31 Rca Corp Color television image reproduction
US2602903A (en) * 1950-11-13 1952-07-08 Kenneth T Snow Cathode-ray tube
US2769855A (en) * 1950-12-29 1956-11-06 Philco Corp Color television camera tube with indexing structure
US2738377A (en) * 1951-03-27 1956-03-13 Pye Ltd Color television
US2730644A (en) * 1951-04-10 1956-01-10 Hyman A Michlin Electroluminescent light means
DE945034C (en) * 1951-05-02 1956-06-28 Philips Nv Device for taking color television pictures
US2774814A (en) * 1951-05-02 1956-12-18 Hartford Nat Bank & Trust Co Post-deflection horizontal color stripe pick-up tube
US2736890A (en) * 1951-07-28 1956-02-28 Hartford Nat Bank & Trust Co Color-television camera device
DE956412C (en) * 1951-07-28 1957-01-17 Philips Nv Electron beam tubes for displaying color television images
US2721288A (en) * 1951-10-23 1955-10-18 Chromatic Television Lab Inc Focusing grid structure for electron tubes
US2741724A (en) * 1951-11-27 1956-04-10 Rauland Corp Image-reproducing device
US2723361A (en) * 1952-01-02 1955-11-08 Du Mont Allen B Lab Inc Cathode ray tube
US2669675A (en) * 1952-01-08 1954-02-16 Chromatic Television Lab Inc Display surface for color television tubes
US2824251A (en) * 1952-01-08 1958-02-18 Chromatic Television Lab Inc Method and apparatus for fabricating grid structures for cathode-ray tubes
US2702873A (en) * 1952-02-05 1955-02-22 Chromatic Television Lab Inc Screen structure for color television cathode-ray tubes
US2713604A (en) * 1952-03-15 1955-07-19 Rca Corp Apparatus for applying signals to electrodes of an electron tube
US2901531A (en) * 1952-03-20 1959-08-25 Robert E Mccoy Cross-talk neutralization in color pick-up tube
US2719241A (en) * 1952-04-18 1955-09-27 Westinghouse Electric Corp Three color kinescope for sequential color systems
US2738436A (en) * 1952-09-02 1956-03-13 Chromatic Television Lab Inc Electrode structure
US2683833A (en) * 1952-09-02 1954-07-13 Chromatic Television Lab Inc Electrode structure
US2723305A (en) * 1952-09-17 1955-11-08 Chromatic Television Lab Inc Apparatus for projecting television images in color
US2728021A (en) * 1953-03-18 1955-12-20 Rca Corp Post-deflected cathode ray tube
US2791710A (en) * 1953-03-23 1957-05-07 Chromatic Television Lab Inc Grid structure for television tube
US2731582A (en) * 1953-03-23 1956-01-17 Chromatic Television Lab Inc Grid structure for color television tube
US2770746A (en) * 1953-03-25 1956-11-13 Rca Corp Cathode ray tube and target
US2722623A (en) * 1953-03-31 1955-11-01 Rca Corp Color-kinescopes etc.
US2691116A (en) * 1953-03-31 1954-10-05 Rca Corp Color-kinescopes, etc.
US2875360A (en) * 1953-05-25 1959-02-24 Westinghouse Electric Corp Image intensifier
DE1018096B (en) * 1953-07-04 1957-10-24 Electronique Soc Gen Device for projecting color television images
DE1021017B (en) * 1953-07-10 1957-12-19 Marconi Wireless Telegraph Co Screen for color television recording and reproduction purposes
US2767346A (en) * 1953-10-05 1956-10-16 Hoyt Karl Robert Apparatus and method for regulating television target potential
US2734940A (en) * 1953-10-05 1956-02-14 loughlin
US2752420A (en) * 1953-10-09 1956-06-26 Philco Corp Color television receiving systems
US2721293A (en) * 1953-12-22 1955-10-18 Chromatic Television Lab Inc Control circuit for color television display tubes
DE1080595B (en) * 1953-12-22 1960-04-28 Chromatic Television Lab Inc Cathode ray tubes for displaying color television pictures
DE1027235B (en) * 1954-01-14 1958-04-03 Emimeta Fabrikations Anstalt Image storage and playback process
US2772375A (en) * 1954-01-14 1956-11-27 Chromatic Television Lab Inc Electrode structure for image-reproducing cathode-ray tubes
US2873406A (en) * 1954-02-12 1959-02-10 Rca Corp Color television switching circuits
US2757303A (en) * 1954-04-19 1956-07-31 Chromatic Television Lab Inc Damp rod construction for cathode-ray tube grid structures
US2871371A (en) * 1954-05-06 1959-01-27 Rca Corp Wide-band interference light filter
US2728815A (en) * 1954-06-03 1955-12-27 Meguer V Kalfaian Color television image tube utilizing electroluminescence
US2833959A (en) * 1954-07-06 1958-05-06 Chromatic Television Lab Inc Color television voltage control system
US2831998A (en) * 1955-01-03 1958-04-22 Eugene W Allen Multicolor cathode ray tube and viewing screen and post deflection focusing unit therefor
US2884483A (en) * 1955-03-09 1959-04-28 Grimson Color Inc Color image pick up apparatus
US2848358A (en) * 1955-03-24 1958-08-19 Rca Corp Method of making ray sensitive targets
US2813989A (en) * 1955-05-02 1957-11-19 Rca Corp Color pickup tubes
US2842697A (en) * 1955-12-07 1958-07-08 Philco Corp Beam-intercepting structure for cathode ray tube
DE1120499B (en) * 1959-04-30 1961-12-28 Saint Gobain Multi-color screen for receiving tubes for colored television
US3452242A (en) * 1966-09-17 1969-06-24 Sony Corp Color picture tube
US3814965A (en) * 1971-07-28 1974-06-04 Matsushita Electronics Corp Color image pick-up tube having a silicon target plate
US3971065A (en) * 1975-03-05 1976-07-20 Eastman Kodak Company Color imaging array
US8711452B2 (en) 2005-07-28 2014-04-29 Omnivision Technologies, Inc. Processing color and panchromatic pixels
US8330839B2 (en) 2005-07-28 2012-12-11 Omnivision Technologies, Inc. Image sensor with improved light sensitivity
US8274715B2 (en) 2005-07-28 2012-09-25 Omnivision Technologies, Inc. Processing color and panchromatic pixels
US8139130B2 (en) 2005-07-28 2012-03-20 Omnivision Technologies, Inc. Image sensor with improved light sensitivity
US8194296B2 (en) 2006-05-22 2012-06-05 Omnivision Technologies, Inc. Image sensor with improved light sensitivity
US8416339B2 (en) 2006-10-04 2013-04-09 Omni Vision Technologies, Inc. Providing multiple video signals from single sensor
US20090021588A1 (en) * 2007-07-20 2009-01-22 Border John N Determining and correcting for imaging device motion during an exposure
US8896712B2 (en) 2007-07-20 2014-11-25 Omnivision Technologies, Inc. Determining and correcting for imaging device motion during an exposure
US8350952B2 (en) 2008-06-04 2013-01-08 Omnivision Technologies, Inc. Image sensors with improved angle response
US20090303377A1 (en) * 2008-06-04 2009-12-10 Meisenzahl Eric J Image sensors with improved angle response
US8119435B2 (en) 2008-07-09 2012-02-21 Omnivision Technologies, Inc. Wafer level processing for backside illuminated image sensors
US20110115957A1 (en) * 2008-07-09 2011-05-19 Brady Frederick T Backside illuminated image sensor with reduced dark current
US20100302418A1 (en) * 2009-05-28 2010-12-02 Adams Jr James E Four-channel color filter array interpolation

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