Patent US3655464A successfully refreshed from Google Patents.
US3081402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid-state image intensifier
Assignee: US Philips Corp
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Filing: 1960-02-16
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Granted: 1963-03-12
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Expires: 1980-02-16
Abstract
No abstract record available.
Inventors
- 👤 Johannes Gerrit Van Santen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:51
CPC Classifications
H; H10; H10F; H10F55/00; H10F55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A SOLID STATE IMAGE INTENSIFIER COMPRISING PLURAL ELECTRIC-FIELD-RESPONSIVE LUMINESCENT ELEMENTS AND PLURAL RADIATION-RESPONSIVE VARIABLE-IMPEDANCE ELEMENTS, MEANS FOR APPLYING AN ENERGIZING ALTERNATING VOLTAGE TO THE SAID ELEMENTS, AND MEANS INTERCONNECTING THE SAID ELEMENTS AT WHICH THE SUCCESSIVE VOLTAGES APPLIED TO EACH LUMINESCENT ELEMENT ARE ALTERNATELY DETERMINED BY THE IMPEDANCE CONDITION OF ONE OF TWO VARIABLE-IMPEDANCE ELEMENTS, SAID VARIABLE-IMPEDANCE ELEMENTS EACH BEING CONSTITUTED BY SUBSTANTIALLY PERMANENTLY ELECTRICALLY POLARIZED PHOTOCONDUCTIVE MATERIAL AND BEING ASYMMETRICALLY CONDUCTIVE, THE SAID TWO VARIABLE-IMPEDANCE ELEMENTS DETERMINING THE SUCCESSIVE VOLTAGES APPLIED TO EACH LUMINESCENT ELEMENT EXHIBITING OPPOSITE DIRECTIONS OF POLARIZATION AND CONDUCTIVITY RELATIVE TO THE AFOREMENTIONED LUMINESCENT ELEMENT.
Claim 2
Dependent Claim
99 words
A SOLID STATE IMAGE INTENSIFIER COMPRISING PLURAL ELECTRIC-FIELD-RESPONSIVE LUMINESCENT ELEMENTS AND PLURAL RADIATION-RESPONSIVE VARIABLE-IMPEDANCE ELEMENTS, MEANS FOR APPLYING AN ENERGIZING ALTERNATING VOLTAGE TO THE SAID ELEMENTS, AND MEANS INTERCONNECTING THE SAID ELEMENTS AT WHICH THE SUCCESSIVE VOLTAGES APPLIED TO EACH LUMINESCENT ELEMENT ARE ALTERNATELY DETERMINED BY THE IMPEDANCE CONDITION OF ONE OF TWO VARIABLE-IMPEDANCE ELEMENTS, SAID VARIABLE-IMPEDANCE ELEMENTS EACH BEING CONSTITUTED BY SUBSTANTIALLY PERMANENTLY ELECTRICALLY POLARIZED PHOTOCONDUCTIVE MATERIAL AND BEING ASYMMETRICALLY CONDUCTIVE, THE SAID TWO VARIABLE-IMPEDANCE ELEMENTS DETERMINING THE SUCCESSIVE VOLTAGES APPLIED TO EACH LUMINESCENT ELEMENT EXHIBITING OPPOSITE DIRECTIONS OF POLARIZATION AND CONDUCTIVITY RELATIVE TO THE AFOREMENTIONED LUMINESCENT ELEMENT.
References Cited (Backward Citations)
US2930999A
Cited
US2839690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |