US2446791A - Color television tube - Google Patents
Color television tube Download PDFInfo
- 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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- Expired - Lifetime
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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.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US675862A US2446791A (en) | 1946-06-11 | 1946-06-11 | Color television tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US675862A US2446791A (en) | 1946-06-11 | 1946-06-11 | Color television tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2446791A true US2446791A (en) | 1948-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US675862A Expired - Lifetime US2446791A (en) | 1946-06-11 | 1946-06-11 | Color television tube |
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|---|---|
| US (1) | US2446791A (en) |
Cited By (84)
| 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 |
| US2721288A (en) * | 1951-10-23 | 1955-10-18 | Chromatic Television Lab Inc | Focusing grid structure for electron tubes |
| US2721293A (en) * | 1953-12-22 | 1955-10-18 | Chromatic Television Lab Inc | Control circuit for color television display 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 |
| US2734938A (en) * | 1956-02-14 | goodale | ||
| US2734940A (en) * | 1953-10-05 | 1956-02-14 | loughlin | |
| US2736890A (en) * | 1951-07-28 | 1956-02-28 | Hartford Nat Bank & Trust Co | Color-television camera device |
| US2738377A (en) * | 1951-03-27 | 1956-03-13 | Pye Ltd | Color television |
| US2738436A (en) * | 1952-09-02 | 1956-03-13 | Chromatic Television Lab Inc | Electrode structure |
| 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 |
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| 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 |
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| 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 |
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| US20090021588A1 (en) * | 2007-07-20 | 2009-01-22 | Border John N | Determining and correcting for imaging device motion during an exposure |
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Cited By (89)
| 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 |
| US2731582A (en) * | 1953-03-23 | 1956-01-17 | Chromatic Television Lab Inc | Grid structure for color television tube |
| US2791710A (en) * | 1953-03-23 | 1957-05-07 | Chromatic Television Lab Inc | Grid structure for 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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