US3349339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optically pumped laser with cathodoluminescent pumping light source
Assignee: Duro Test Corp
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Filing: 1966-05-23
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Granted: 1967-10-24
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Expires: 1986-05-23
Abstract
No abstract record available.
Inventors
- 👤 Thorington Luke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:12
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/20; H01S3/09; H01S3/091; H01S3/0915; H01S3/09155
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
191 words
APPARATUS FOR INTENSIFICATION OF ELECTROMAGNETIC RADIATION IN A FIRST PREDETERMINED WAVELENGTH RANGE BY STIMULATED EMISSION OF RADIATION COMPRISING A VOLUME OF NEGATIVE TEMPERATURE MATERIAL OPTICALLY PUMPABLE BY LIGHT IN A SECOND PREDETERMINED WAVELENGTH RANGE, EVACUATED CONTAINING MEANS FOR SAID MATERIAL, A PORTION OF SAID CONTAINING MEANS BEING AT LEAST PARTIALLY TRANSPARENT TO RADIATION IN SAID FIRST PREDETERMINED WAVELENGTH RANGE, A UNITARY REFLECTING LAYER COMPRISING A CATHODO-LUMINESCENT MATERIAL FOR EMITTING LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE ADJACENT A PORTION OF SAID VOLUME OF NEGATIVE TEMPERATURE MATERIAL WITH SAID CATHODOLUMINESCENT MATERIAL BEING POSITIONED TO EMIT LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE INTO SAID VOLUME PORTION OF NEGATIVE TEMPERATURE MATERIAL, SAID LAYER FURTHER FORMING A SURFACE PARTIALLY SURROUNDING SAID VOLUME OF NEGATIVE TEMPERATURE MATERIAL, WHEREBY LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE WHICH IS NOT ABSORBED BY SAID NEGATIVE TEMPERATURE MEDIUM IS REFLECTED BACK THROUGH SAID MEDIUM, THERE BEING A PATH BETWEEN SAID CATHODO-LUMINESCENT MATERIAL AND SAID VOLUME PORTION SUBSTANTIALLY TRANSPARENT TO LIGHT SAID SECOND PREDETERMINED WAVELENGTH RANGE, AND MEANS FOR GENERATING A STREAM OF HIGH VELOCITY ELECTRONS TO IMPINGE ON SAID LAYER TO CAUSE LUMINESCENCE THEREOF IN SAID SECOND WAVELENGTH RANGE.
Claim 2
Dependent Claim
191 words
APPARATUS FOR INTENSIFICATION OF ELECTROMAGNETIC RADIATION IN A FIRST PREDETERMINED WAVELENGTH RANGE BY STIMULATED EMISSION OF RADIATION COMPRISING A VOLUME OF NEGATIVE TEMPERATURE MATERIAL OPTICALLY PUMPABLE BY LIGHT IN A SECOND PREDETERMINED WAVELENGTH RANGE, EVACUATED CONTAINING MEANS FOR SAID MATERIAL, A PORTION OF SAID CONTAINING MEANS BEING AT LEAST PARTIALLY TRANSPARENT TO RADIATION IN SAID FIRST PREDETERMINED WAVELENGTH RANGE, A UNITARY REFLECTING LAYER COMPRISING A CATHODO-LUMINESCENT MATERIAL FOR EMITTING LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE ADJACENT A PORTION OF SAID VOLUME OF NEGATIVE TEMPERATURE MATERIAL WITH SAID CATHODOLUMINESCENT MATERIAL BEING POSITIONED TO EMIT LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE INTO SAID VOLUME PORTION OF NEGATIVE TEMPERATURE MATERIAL, SAID LAYER FURTHER FORMING A SURFACE PARTIALLY SURROUNDING SAID VOLUME OF NEGATIVE TEMPERATURE MATERIAL, WHEREBY LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE WHICH IS NOT ABSORBED BY SAID NEGATIVE TEMPERATURE MEDIUM IS REFLECTED BACK THROUGH SAID MEDIUM, THERE BEING A PATH BETWEEN SAID CATHODO-LUMINESCENT MATERIAL AND SAID VOLUME PORTION SUBSTANTIALLY TRANSPARENT TO LIGHT SAID SECOND PREDETERMINED WAVELENGTH RANGE, AND MEANS FOR GENERATING A STREAM OF HIGH VELOCITY ELECTRONS TO IMPINGE ON SAID LAYER TO CAUSE LUMINESCENCE THEREOF IN SAID SECOND WAVELENGTH RANGE.
Claim 3
Dependent Claim
136 words
APPARATUS FOR INTENSIFICATION OF LIGHT IN A FIRST PREDETERMINED WAVELENGTH RANGE BY STIMULATED EMISSION OF RADIATION COMPRISING A VOLUME OF NEGATIVE TEMPERATURE FLUID OPTICALLY PUMPABLE BY LIGHT IN A SECOND PREDETERMINED WAVELENGTH RANGE, MEANS ENCLOSING SAID FLUID MEANS FOR CIRCULATING SAID FLUID THROUGH SAID ENCLOSING MEANS, MEANS FOR COOLING SAID CIRCULATING FLUID, SAID ENCLOSING MEANS HAVING A WINDOW AT LEAST PARTIALLY TRANSPARENT TO LIGHT IN SAID FIRST PREDETERMINED WAVELENGTH RANGE, A LAYER OF LUMINESCENT MATERIAL EMITTING LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE SUBSTANTIALLY SURROUNDING A PORTION OF SAID ENCLOSING MEANS, SAID PORTION OF SAID ENCLOSING MEANS BEING SUBSTANTIALLY TRANSPARENT TO LIGHT OF SAID SECOND PREDETERMINED WAVELENGTH RANGE, AN EVACUATED CHAMBER SURROUNDING SAID LAYER OF LUMINESCENT MATERIAL AND MEANS OF GENERATING A STREAM OF HIGH VELOCITY ELECTRONS TO IMPINGE ON SAID LAYER TO CAUSE LUMINSCENCE THEREOF.
Claim 4
Dependent Claim
136 words
APPARATUS FOR INTENSIFICATION OF LIGHT IN A FIRST PREDETERMINED WAVELENGTH RANGE BY STIMULATED EMISSION OF RADIATION COMPRISING A VOLUME OF NEGATIVE TEMPERATURE FLUID OPTICALLY PUMPABLE BY LIGHT IN A SECOND PREDETERMINED WAVELENGTH RANGE, MEANS ENCLOSING SAID FLUID MEANS FOR CIRCULATING SAID FLUID THROUGH SAID ENCLOSING MEANS, MEANS FOR COOLING SAID CIRCULATING FLUID, SAID ENCLOSING MEANS HAVING A WINDOW AT LEAST PARTIALLY TRANSPARENT TO LIGHT IN SAID FIRST PREDETERMINED WAVELENGTH RANGE, A LAYER OF LUMINESCENT MATERIAL EMITTING LIGHT IN SAID SECOND PREDETERMINED WAVELENGTH RANGE SUBSTANTIALLY SURROUNDING A PORTION OF SAID ENCLOSING MEANS, SAID PORTION OF SAID ENCLOSING MEANS BEING SUBSTANTIALLY TRANSPARENT TO LIGHT OF SAID SECOND PREDETERMINED WAVELENGTH RANGE, AN EVACUATED CHAMBER SURROUNDING SAID LAYER OF LUMINESCENT MATERIAL AND MEANS OF GENERATING A STREAM OF HIGH VELOCITY ELECTRONS TO IMPINGE ON SAID LAYER TO CAUSE LUMINSCENCE THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |