US3748549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistive sea for camera tube employing silicon target with array of diodes
Assignee: Philips North America LLC
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Filing: 1972-03-29
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Granted: 1973-07-24
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Expires: 1992-03-29
Abstract
Abstract A camera tube employing a silicon target with a diode array which is covered with a resistive layer or sea on the side facing the electron beam. The resistive sea consists of a layer of bismuth oxide which protects the silicon target from damage by xrays while minimizing charge build-up on the insulating layer between diodes which would otherwise prevent beam landing. The resistive sea is covered by a very thin layer of cadmium telluride which stabilizes the Bi2O3 layer and improves its beam acceptance properties.
Inventors
- 👤 A Milch
- 👤 B Singer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/451; H01J29/453; H01J29/455; H01J9/00; H01J9/20; H01J9/233; H10; H10D; H10D99/00; Y; Y10; Y10S; Y10S257/00; Y10S257/917
Claims Analysis
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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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |