Patent US3590254A successfully refreshed from Google Patents.
US3590254A
Expired / Lapsed
US
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Infrared image converter
Assignee: Individual
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Filing: 1969-11-26
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Granted: 1971-06-29
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Expires: 1989-11-26
Abstract
Abstract An infrared image converter utilizing a flood beam from a cold photocathode source and a solenoidal focus field from a solenoid completely surrounding the entire flood beam; the flood beam being directed by a static deflection system toward a thermally sensitive target placed at the end of a decelerating zone which forms an electron mirror repelling a portion of the electrons toward a phosphor screen for displaying the image of the infrared pattern on the thermally sensitive target.
Inventors
- 👤 Walter Wysoczanski
- 👤 John P Choisser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:39
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/54
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
The infrared image converter of claim 1 wherein: said static deflecting means comprises an electron prism.
Claim 2
Dependent Claim
20 words
The infrared image converter of claim 1 wherein: said readout means comprises a phosphor screen having an acceleration potential thereon.
Claim 3
Dependent Claim
19 words
The infrared image converter claim 1 and further including: a shield mounted between said photocathode and said readout means.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |