US3918803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display of multicolor images using a screen with red, blue and green photoluminescent segments
Assignee: Harris Corp
•
Filing: 1974-05-30
•
Granted: 1975-11-11
•
Expires: 1994-05-30
Abstract
Abstract A multicolor display system including a viewing screen having a multiplicity of closely spaced photoluminescent segments thereon in a regular array of alternating red, blue and green segments. A hologram which was recorded at or near the Fourier transform plane of the input information is positioned relative to the screen to project an image of the recorded information thereon when the hologram is illuminated by a readout beam. The information is recorded in a coded format representative of multiple colors contained in the original subject from which the information was derived.
Inventors
- 👤 Albert A Friesem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:05
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/31; H04N9/3102; H04N9/3105; H04N9/3108; F; F21; F21K; F21K2/00; G; G02; G02F; G02F2/00; G02F2/02; G03; G03B; G03B33/00; G03B33/10; G03H; G03H1/00; G03H1/04; G03H1/16; G02F1/00; G02F1/01; G02F1/23
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
272 words
An apparatus for displaying a multicolor image wherein the colors of the image are formed by a plurality of basic colors or a combination thereof comprising means defining a display area for the image including a plurality of light excitable light emitting elements within said area for each of said basic colors, all of said elements being excitable by light to emit the respective color in accordance with the intensity of the exciting light, said elements for each color being spaced from adjacent elements of the same color to define a desired resolution for the color within the image, said elements forming a regular array of alternating red, blue and green elements, and means for projecting light onto said display area including record means having coded information thereon projectable as a plurality of image segments of respective light intensities in accordance with said coded information with each segment corresponding to a said element to be excited, said record means comprising a black and white transparent medium and said coded information thereon comprising a regular array of alternating first, second and third sections which are geometrically similar to said regular array of alternating red, blue and green elements, with all of said first sections, said second sections and said third sections containing information in terms of transparency about only red, only blue and only green respectively present in portions of a multicolor subject, and means for illuminating said record means to cast said plurality of image segments onto said display area so that each image segment excites a particular light emitting element to emit its respective color and thereby form said multicolor image.
Claim 2
Independent Claim
272 words
An apparatus for displaying a multicolor image wherein the colors of the image are formed by a plurality of basic colors or a combination thereof comprising means defining a display area for the image including a plurality of light excitable light emitting elements within said area for each of said basic colors, all of said elements being excitable by light to emit the respective color in accordance with the intensity of the exciting light, said elements for each color being spaced from adjacent elements of the same color to define a desired resolution for the color within the image, said elements forming a regular array of alternating red, blue and green elements, and means for projecting light onto said display area including record means having coded information thereon projectable as a plurality of image segments of respective light intensities in accordance with said coded information with each segment corresponding to a said element to be excited, said record means comprising a black and white transparent medium and said coded information thereon comprising a regular array of alternating first, second and third sections which are geometrically similar to said regular array of alternating red, blue and green elements, with all of said first sections, said second sections and said third sections containing information in terms of transparency about only red, only blue and only green respectively present in portions of a multicolor subject, and means for illuminating said record means to cast said plurality of image segments onto said display area so that each image segment excites a particular light emitting element to emit its respective color and thereby form said multicolor image.
Claim 3
Independent Claim
250 words
A method of displaying a multicolor image wherein the colors of the image are formed by a plurality of basic colors or a combination thereof and a display area for the image is comprised of a plurality of light emitting elements within the area for each of the basic colors, all of which are excitable by light to emit light of the respective color with the elements of each color being spaced from adjacent elements of the same color to define a desired resolution for the color, said elements forming a regular array of alternating red, blue and green elements, comprising the steps of providing a record means having coded information thereon projectible as a plurality of light segments with said coded information, said record means comprising a black and white transparent medium and said coded information thereon comprising a Regular array of alternating first, second and third sections which are geometrically similar to said regular array of alternating red, blue and green elements, with all of said first sections, said second sections and said third sections containing information in terms of transparency about only red, only blue and only green respectively present in portions of a multicolor subject, and illuminating said record means to cast said plurality of image segments onto said display area so that each said segment illuminates a respective one of said elements so that the illuminated elements are excited to emit their respective colors in accordance with said coded information to form a multicolor image.
Claim 4
Independent Claim
250 words
A method of displaying a multicolor image wherein the colors of the image are formed by a plurality of basic colors or a combination thereof and a display area for the image is comprised of a plurality of light emitting elements within the area for each of the basic colors, all of which are excitable by light to emit light of the respective color with the elements of each color being spaced from adjacent elements of the same color to define a desired resolution for the color, said elements forming a regular array of alternating red, blue and green elements, comprising the steps of providing a record means having coded information thereon projectible as a plurality of light segments with said coded information, said record means comprising a black and white transparent medium and said coded information thereon comprising a Regular array of alternating first, second and third sections which are geometrically similar to said regular array of alternating red, blue and green elements, with all of said first sections, said second sections and said third sections containing information in terms of transparency about only red, only blue and only green respectively present in portions of a multicolor subject, and illuminating said record means to cast said plurality of image segments onto said display area so that each said segment illuminates a respective one of said elements so that the illuminated elements are excited to emit their respective colors in accordance with said coded information to form a multicolor image.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |