Patent US3300644A successfully refreshed from Google Patents.
US3300644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-chopping photodetector
Assignee: Individual
•
Filing: 1963-12-04
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Granted: 1967-01-24
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Expires: 1983-12-04
Abstract
No abstract record available.
Inventors
- 👤 Jay N Zemel
- 👤 Donald E Bode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:05
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PHOTODECTOR DEVICE FOR SAMPLING ELECTROMAGNETIC RADIATION COMPRISING: CAPACITOR MEANS HAVING A SEMICONDUCTOR MATERIAL FORMING ONE PLATE THEREOF; A SECOND PLATE COMPRISING MATERIAL TRANSPARENT TO A PREDETERMINED BANDWIDTH OF ELECTROMAGNETIC RADIATION TO BE DETECTED; DIELECTRIC MATERIAL DISPOSED BETWEEN SAID PLATES; OUTPUT CIRCUIT MEANS CONNECTED TO SAID SEMICONDUCTOR MATERIAL FOR CONDUCTING A PHOTO SIGNAL CURRENT HAVING A VALUE DEPENDENT UPON THE PROPERTIES OF SAID SEMICONDUCTOR MATERIAL; SAID SEMICONDUCTOR HAVING A FIRST VALUE OF THE SIGNAL OUTPUT DEPENDENT UPON THE PHOTON ENERGY RECEIVED FROM INCOMING ELECTROMAGNETIC RADIATION AND ELECTRIC FIELD MEANS CONNECTED TO SAID CAPACITOR MEANS FOR MODULATING THE SURFACE POTENTIAL OF SAID SEMICONDUCTOR WHEREBY THE SURFACE RECOMBINATION RATE OF SAID SEMICONDUCTOR IS VARIED IN ACCORDANCE WITH SAID MODULATION TO VARY SAID SIGNAL VALUE ABOUT SAID FIRST VALUE.
Claim 2
Dependent Claim
126 words
A PHOTODECTOR DEVICE FOR SAMPLING ELECTROMAGNETIC RADIATION COMPRISING: CAPACITOR MEANS HAVING A SEMICONDUCTOR MATERIAL FORMING ONE PLATE THEREOF; A SECOND PLATE COMPRISING MATERIAL TRANSPARENT TO A PREDETERMINED BANDWIDTH OF ELECTROMAGNETIC RADIATION TO BE DETECTED; DIELECTRIC MATERIAL DISPOSED BETWEEN SAID PLATES; OUTPUT CIRCUIT MEANS CONNECTED TO SAID SEMICONDUCTOR MATERIAL FOR CONDUCTING A PHOTO SIGNAL CURRENT HAVING A VALUE DEPENDENT UPON THE PROPERTIES OF SAID SEMICONDUCTOR MATERIAL; SAID SEMICONDUCTOR HAVING A FIRST VALUE OF THE SIGNAL OUTPUT DEPENDENT UPON THE PHOTON ENERGY RECEIVED FROM INCOMING ELECTROMAGNETIC RADIATION AND ELECTRIC FIELD MEANS CONNECTED TO SAID CAPACITOR MEANS FOR MODULATING THE SURFACE POTENTIAL OF SAID SEMICONDUCTOR WHEREBY THE SURFACE RECOMBINATION RATE OF SAID SEMICONDUCTOR IS VARIED IN ACCORDANCE WITH SAID MODULATION TO VARY SAID SIGNAL VALUE ABOUT SAID FIRST VALUE.
References Cited (Backward Citations)
US3102959A
Cited
US2978652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |