US3327151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light amplifier employing an electron multiplying electrode which supports a photocathode
Assignee: US Philips Corp
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Filing: 1964-08-19
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Granted: 1967-06-20
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Adams John
- 👤 Manley Brian William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:49
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/06; H01J43/18; H01J43/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A LIGHT AMPLIFIER, THE COMBINATION OF A PHOTOCATHODE AND AN ELECTRON MULTIPLYING ELECTRODE, SAID ELECTRON MULTIPLYING ELECTRODE CONSTITUTING A SUPPORT FOR THE PHOTO-CATHODE AND COMPRISING A THIN PLATE-LIKE MEMBER OF INSULATING MATERIAL HAVING A PLURALITY OF CLOSELY ADJACENT NARROW CHANNELS, SAID CHANNELS BEING COATED WITH SECONDARY EMISSIVE MATERIAL AND EXTENDING BETWEEN OPPOSITE FACES OF SAID MEMBER, AND AN ELECTRICALLY CONDUCTING MATERIAL COVERING THE OPPOSITE FACES OF THE PLATE-LIKE MEMBER EXCEPT FOR THE APERTURES THEREIN CORRESPONDING TO THE CHANNELS, SAID PHOTO-CATHODE BEING CONSITUTED OF A PHOTO-ELECTRIC CATHODE MATERIAL COVERING SAID CONDUCTING MATERIAL ON ONE OF SAID FACES OF SAID PLATE-LIKE MEMBER AND EXPOSED TO INCIDENT LIGHT.
Claim 2
Dependent Claim
106 words
IN A LIGHT AMPLIFIER, THE COMBINATION OF A PHOTOCATHODE AND AN ELECTRON MULTIPLYING ELECTRODE, SAID ELECTRON MULTIPLYING ELECTRODE CONSTITUTING A SUPPORT FOR THE PHOTO-CATHODE AND COMPRISING A THIN PLATE-LIKE MEMBER OF INSULATING MATERIAL HAVING A PLURALITY OF CLOSELY ADJACENT NARROW CHANNELS, SAID CHANNELS BEING COATED WITH SECONDARY EMISSIVE MATERIAL AND EXTENDING BETWEEN OPPOSITE FACES OF SAID MEMBER, AND AN ELECTRICALLY CONDUCTING MATERIAL COVERING THE OPPOSITE FACES OF THE PLATE-LIKE MEMBER EXCEPT FOR THE APERTURES THEREIN CORRESPONDING TO THE CHANNELS, SAID PHOTO-CATHODE BEING CONSITUTED OF A PHOTO-ELECTRIC CATHODE MATERIAL COVERING SAID CONDUCTING MATERIAL ON ONE OF SAID FACES OF SAID PLATE-LIKE MEMBER AND EXPOSED TO INCIDENT LIGHT.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |