US3122670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and devices for producing polychromatic images from monochromatic signals
Assignee: Individual
•
Filing: 1960-06-23
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Granted: 1964-02-25
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Domenico A Rudatis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:31
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/30; H01J29/32; H04; H04N; H04N9/00; H04N9/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A SCREEN FOR GENERATING COLORED IMAGES WHEN EXCITED FROM AN EXCITATION SOURCE DISPOSED AT ONE SIDE OF THE SCREEN, THE COMBINATION OF A TRANSPARENT SUPPORT AND TWO LAYERS OF LUMINESCENT MATERIAL SUPERPOSED ON SAID SUPPORT IN SUCH FASHION THAT ONE OF SAID LAYERS IS EXCITED BEFORE THE OTHER, THE ONE OF SAID LAYERS WHICH IS FIRST EXCITED BEING OF LUMINESCENT MATERIAL SATURATING AT LOWER EXCITATION DENSITIES AND THE OTHER OF SAID LAYERS BEING OF LUMINESCENT MATERIAL SATURATING AT MARKEDLY HIGHER EXCITATION DENSITIES THAN THE MATERIAL OF SAID FIRSTEXCITED LAYER, THE LIGHTS EMITTED BY SAID LUMINESCENT MATERIALS BEING OF SUCH COLORS THAT ALL COLOR COMBINATIONS RESULTING FROM DIFFERENT PROPORTIONS OF COLORED LIGHTS EMITTED BY SAID LAYERS HAVE DIFFERENT HUES, SAID LAYERS HAVING THICKNESSES SO PROPORTIONED THAT EXCITATION OF SAID LAYERS AT PREDETERMINED DIFFERENT EXCITATION LEVELS PRODUCES PREDETERMINED DIFFERENT HUES.
Claim 2
Dependent Claim
139 words
IN A SCREEN FOR GENERATING COLORED IMAGES WHEN EXCITED FROM AN EXCITATION SOURCE DISPOSED AT ONE SIDE OF THE SCREEN, THE COMBINATION OF A TRANSPARENT SUPPORT AND TWO LAYERS OF LUMINESCENT MATERIAL SUPERPOSED ON SAID SUPPORT IN SUCH FASHION THAT ONE OF SAID LAYERS IS EXCITED BEFORE THE OTHER, THE ONE OF SAID LAYERS WHICH IS FIRST EXCITED BEING OF LUMINESCENT MATERIAL SATURATING AT LOWER EXCITATION DENSITIES AND THE OTHER OF SAID LAYERS BEING OF LUMINESCENT MATERIAL SATURATING AT MARKEDLY HIGHER EXCITATION DENSITIES THAN THE MATERIAL OF SAID FIRSTEXCITED LAYER, THE LIGHTS EMITTED BY SAID LUMINESCENT MATERIALS BEING OF SUCH COLORS THAT ALL COLOR COMBINATIONS RESULTING FROM DIFFERENT PROPORTIONS OF COLORED LIGHTS EMITTED BY SAID LAYERS HAVE DIFFERENT HUES, SAID LAYERS HAVING THICKNESSES SO PROPORTIONED THAT EXCITATION OF SAID LAYERS AT PREDETERMINED DIFFERENT EXCITATION LEVELS PRODUCES PREDETERMINED DIFFERENT HUES.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |