Patent US3922577A successfully refreshed from Google Patents.
US3922577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Channel plate electron multiplier adjacent color dot screen
Assignee: TDK Micronas GmbH
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Filing: 1973-09-10
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Granted: 1975-11-25
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Expires: 1993-09-10
Abstract
Abstract A phosphor deposition method including the step of illuminating the phosphor slurry on a tube faceplate through the channels of a channel-type electron multiplier array for use in the tube. For a color television picture tube, red, green and blue phosphors are sequentially fixed by the use of a multiplier having three sets of channels extending therethrough at three different angles. The different colored phosphors are then illuminated at the three different corresponding angles. Any misregistration may be corrected by the use of a lens device.
Inventors
- 👤 Richard Kaspar Orthuber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:40
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271; H01J9/2272; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
154 words
A DEVICE FOR REGISTERING COLOR PHOSPHOR DOTS IN A TELEVISION TUBE COMPRISING, A PHOSPHOR SCREEN COATED WITH COLOR DOTS, A DIELECTRIC CHANNEL PLATE ELECTRON MULTIPLIER POSITIONED ADJACENT SAID PHOSPHOR SCREEN, SAID CHANNEL PLATE INCLUDING PLURALITY OF PARALLEL COLUMNS HOLES THERETHROUGH BETWEEN OPPOSITE SIDES OF SAID PLATE, SAID HOLES HAVING RESISTIVE SECONDARY EMISSIVE SURFACES THEREIN, ELECTRODES ON SAID OPPOSITE SIDES HAVING CORRESPONDING HOLES COINCIDING WITH SAID DIELECTRIC PLATE HOLES, ONE OF SAID ELECTRODES ON ONE SIDE INCLUDING A PLURALITY OF SPACED PARALLEL ELECTRODES ALONG RESPECTIVE COLUMNS OF HOLES, THE HOLES IN EACH RESPECTIVE COLUMN HAVING COMMON AXIAL ANGLE THROUGH SAID PLATE WITH RESPECT TO THE PLANE OF SAID SCREEN DIFFERENT FROM THE ANGLE OF THE HOLES IN EACH ADJACENT COLUMN, EACH COLUMN OF HOLES WITH RESPECTIVE DIFFERENT COMMON ANGLES BEING REPETITIVE IN EVERY THIRD COLUMN ACROSS SAID PLATE, AND EACH COLUMN OF HOLES BEING ALIGNED WITH A CORRESPONDING COLUMN OF PHOSPHOR DOTS ON SAID SCREEN.
Claim 2
Independent Claim
154 words
A DEVICE FOR REGISTERING COLOR PHOSPHOR DOTS IN A TELEVISION TUBE COMPRISING, A PHOSPHOR SCREEN COATED WITH COLOR DOTS, A DIELECTRIC CHANNEL PLATE ELECTRON MULTIPLIER POSITIONED ADJACENT SAID PHOSPHOR SCREEN, SAID CHANNEL PLATE INCLUDING PLURALITY OF PARALLEL COLUMNS HOLES THERETHROUGH BETWEEN OPPOSITE SIDES OF SAID PLATE, SAID HOLES HAVING RESISTIVE SECONDARY EMISSIVE SURFACES THEREIN, ELECTRODES ON SAID OPPOSITE SIDES HAVING CORRESPONDING HOLES COINCIDING WITH SAID DIELECTRIC PLATE HOLES, ONE OF SAID ELECTRODES ON ONE SIDE INCLUDING A PLURALITY OF SPACED PARALLEL ELECTRODES ALONG RESPECTIVE COLUMNS OF HOLES, THE HOLES IN EACH RESPECTIVE COLUMN HAVING COMMON AXIAL ANGLE THROUGH SAID PLATE WITH RESPECT TO THE PLANE OF SAID SCREEN DIFFERENT FROM THE ANGLE OF THE HOLES IN EACH ADJACENT COLUMN, EACH COLUMN OF HOLES WITH RESPECTIVE DIFFERENT COMMON ANGLES BEING REPETITIVE IN EVERY THIRD COLUMN ACROSS SAID PLATE, AND EACH COLUMN OF HOLES BEING ALIGNED WITH A CORRESPONDING COLUMN OF PHOSPHOR DOTS ON SAID SCREEN.
Claim 3
Dependent Claim
18 words
The device of claim 1 wherein each column of holes is associated with a selected phosphor dot color.
Claim 4
Dependent Claim
89 words
The invention as defined in claim 1, wherein the axes of the holes of one of every three columns are inclined at a predetermined angle less than 90* in one direction from the normal with respect to the plane of said screen, the axes of the holes of the second of said columns being normal to said plane and the axes of the holes of the third of said columns being inclined at the same said predetermined angle less than 90* but in a direction opposite said one direction.
Claim 5
Dependent Claim
54 words
The invention as defined in claim 3, including a further plurality of spaced parallel electrodes on the other side of said plate over respective rows of said plate holes transverse to the columns on said one side, said further electrodes having corresponding holes therethrough in registration with each plate hole in each respective row.
Claim 6
Dependent Claim
40 words
The invention as defined in claim 4, wherein said holes have cylindrical internal surfaces, said predetermined angle being less than 90* and greater than arctan D/L, where D is the diameter of said holes, and L is the length thereof.
Claim 7
Dependent Claim
40 words
The invention as defined in claim 3, wherein said holes have cylindrical internal surfaces, said predetermined angle being less than 90* and greater than arctan D/L, where D is the diameter of said holes, and L is the length thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |