US3192825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrally coded optical transmission of images
Assignee: AT&T Inc
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Filing: 1961-10-18
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Granted: 1965-07-06
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Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jeofry S Courtney-Pratt
- 👤 Eisner Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:08
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/12; G02B27/126; G02B27/1006; G02B27/102; G02B27/108; G02B27/123; G02B27/14; G02B27/141; G02B27/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
168 words
IMAGE TRANSMISSION APPARATUS WHICH COMPRISES A SOURCE OF A NARROW BEAM OF POLYCHROMATIC LIGHT, MEANS FOR DIVERTING THE LIGHT OF A PREASSIGNED WAVELENGTH $C FROM SAID BEAM, MEANS FOR SPREADING THE REMAINING WAVELENGTHS OF SAID BEAM INTO A SPECTRUM, MEANS FOR SELECTIVELY ILLUMINATING THE SEVERAL ELEMENTS OF A SINGLE LINE OF AN OBJECT FIELD WITH THE SUCCESSIVELY DIFFERENT WAVELENGTHS OF SAID SPECTRUM, MEANS FOR PROGRESSIVELY SWEEPING SAID ILLUMINATION OVER SAID FIELD IN A DIRECTION SUBSTANTIALLY PERPENDICULAR TO SAID LINE, MEANS FOR MODULATING LIGHT OF SAID DIVERTED WAVELENGTH $C IN COORDINATION WITH SAID SWEEPING OPERATION TO PROVIDE A CONTROL SIGNAL, MEANS FOR TOGETHER TRANSMITTING THE LIGHT OF SAID FIELD AS THUS ILLUMINATED AND THE LIGHT OF SAID WAVELENTH $C AS THUS MODULATED AS A COMPOSITE BEAM TO A REMOTE LOCATION, MEANS AT SAID REMOTE LOCATION FOR RECEIVING SAID COMPOSITE BEAM, MEANS FOR DIVERTING LIGHT OF SAID WAVELENGTH $C FROM SAID RECEIVED BEAM, MEANS FOR DIRECTING THE UNDIVERTED LIGHT OF SAID RECEIVED BEAM INTO AN IMAGE FIELD IN A FASHION
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |