US3086119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical switching devices
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1959-06-05
•
Granted: 1963-04-16
•
Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Sergei M Fomenko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:51
CPC Classifications
G; G02; G02F; G02F1/00; H; H03; H03K; H03K17/00; H03K17/51; H03K17/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
AN ELETRO-OPTICAL SWITCHING DEVICE FOR PERFORMING A LOGICAL OPERATION AND PRODDUCING AN OUTPUT LIGHT SIGNAL INACCORDANCE WITH THE RESPECTIVE CONDITIONS OF AT LEAST TWO SEPARATE CONDITION REPRESENTING INPUT SIGNALS AT LEAST ONE OF WHICH COMPRISES A LIGHT SIGNAL, SAID DEVICE COMPRISING THE COMBINATION OF A LAYER OF PHOTOEMISSIVE MATERIAL UPON WHICH SAID LIGHT INPUT SIGNAL IMPINGES AND WHICH IS ADAPTED TO EMIT ELECTRONS IN RESPONSE TO SAID LIGHT INPUT SIGNAL, LAYER OF CATHODO-LUMINESCENT MATERIAL SPACED FROM SAID LAYER OF PHOTOEMISSIVE MATERIAL, AN OPAQUE MEMBER DISPOSED BETWEEN SAID PHOTOEMISSIVE AND CATHODO-LUMINESCENT LAYERS FOR BLOCKING THE PASSAGE OF LIGHT WHILE PERMITTING THE PASSAGE THERETHOUGH OF ELECTRONS EMITTED BY THE PHOTOEMISSIVE LAYER, SAID LAYERS BEING RESPONSIVE TO THE OTHER OF SAID INPUT SIGNALS FOR SELECTIVELY ESTABLISHING AN ELECTROOSTATIC FIELD THEREBETWEEN WHEREBY SAID CATHODO-LUMINESCENT LAYER PROVIDE A LIGHT OUTPUT SIGNAL IN ACCORDANCE WITH THE LOGICAL RELATIONSHIP
Claim 2
Dependent Claim
142 words
AN ELETRO-OPTICAL SWITCHING DEVICE FOR PERFORMING A LOGICAL OPERATION AND PRODDUCING AN OUTPUT LIGHT SIGNAL INACCORDANCE WITH THE RESPECTIVE CONDITIONS OF AT LEAST TWO SEPARATE CONDITION REPRESENTING INPUT SIGNALS AT LEAST ONE OF WHICH COMPRISES A LIGHT SIGNAL, SAID DEVICE COMPRISING THE COMBINATION OF A LAYER OF PHOTOEMISSIVE MATERIAL UPON WHICH SAID LIGHT INPUT SIGNAL IMPINGES AND WHICH IS ADAPTED TO EMIT ELECTRONS IN RESPONSE TO SAID LIGHT INPUT SIGNAL, LAYER OF CATHODO-LUMINESCENT MATERIAL SPACED FROM SAID LAYER OF PHOTOEMISSIVE MATERIAL, AN OPAQUE MEMBER DISPOSED BETWEEN SAID PHOTOEMISSIVE AND CATHODO-LUMINESCENT LAYERS FOR BLOCKING THE PASSAGE OF LIGHT WHILE PERMITTING THE PASSAGE THERETHOUGH OF ELECTRONS EMITTED BY THE PHOTOEMISSIVE LAYER, SAID LAYERS BEING RESPONSIVE TO THE OTHER OF SAID INPUT SIGNALS FOR SELECTIVELY ESTABLISHING AN ELECTROOSTATIC FIELD THEREBETWEEN WHEREBY SAID CATHODO-LUMINESCENT LAYER PROVIDE A LIGHT OUTPUT SIGNAL IN ACCORDANCE WITH THE LOGICAL RELATIONSHIP
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |