US3265926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image field flattener for image converter tubes
Assignee: General Electric Co
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Filing: 1963-09-16
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Granted: 1966-08-09
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Schlesinger Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:46
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/56; H01J29/566; H01J31/00; H01J31/08; H01J31/50; H01J31/501
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN ELECTRON-OPTICAL IMAGE FIELD FLATTENER FOR PROVIDING IMAGE FORMATION BETWEEN A PLANAR CATHODE AND A PLANAR TARGET IN AN ELECTROSTATIC IMAGE CONVERTER TUBE, SAID IMAGE FIELD FLATTENER COMPRISING: (A) A PLANAR MESH ELECTRODE SPACED FROM SAID PLANAR CATHODE ALONG THE AXIS OF SAID IMAGE CONVERTER TUBE BETWEEN SAID CATHODE AND SAID TARGET, (B) A CONVEX MESH ELECTRODE SPACED FROM SAID PLANAR MESH ELECTRODE ALONG SAID AXIS BETWEEN SAID PLANAR MESH ELECTRODE AND SAID TARGET, THE CONVEX CURVATURE OF SAID CONVEX MESH ELECTRODE EXTENDING TOWARD SAID CATHODE, (C) AT LEAST ONE RING ELECTRODE POSITIONED ALONG SAID AXIS BETWEEN SAID PLANAR AND SAID CONVEX MESH ELECTRODES, AND (D) ELECTRICAL TERMINALS CONNECTED TO SAID PLANAR AND SAID CONVEX MESH ELECTRODES AND TO SAID RING ELECTRODES FOR APPLYING POTENTIALS THERETO TO PROVIDE AN ELECTROSTATIC LENS BETWEEN SAID PLANAR AND SAID CONVEX MESH ELECTRODES SO THAT AN IMAGE FROM SAID PLANAR CATHODE IS AREA FOCUSED ON SAID PLANAR TARGET.
Claim 2
Dependent Claim
154 words
AN ELECTRON-OPTICAL IMAGE FIELD FLATTENER FOR PROVIDING IMAGE FORMATION BETWEEN A PLANAR CATHODE AND A PLANAR TARGET IN AN ELECTROSTATIC IMAGE CONVERTER TUBE, SAID IMAGE FIELD FLATTENER COMPRISING: (A) A PLANAR MESH ELECTRODE SPACED FROM SAID PLANAR CATHODE ALONG THE AXIS OF SAID IMAGE CONVERTER TUBE BETWEEN SAID CATHODE AND SAID TARGET, (B) A CONVEX MESH ELECTRODE SPACED FROM SAID PLANAR MESH ELECTRODE ALONG SAID AXIS BETWEEN SAID PLANAR MESH ELECTRODE AND SAID TARGET, THE CONVEX CURVATURE OF SAID CONVEX MESH ELECTRODE EXTENDING TOWARD SAID CATHODE, (C) AT LEAST ONE RING ELECTRODE POSITIONED ALONG SAID AXIS BETWEEN SAID PLANAR AND SAID CONVEX MESH ELECTRODES, AND (D) ELECTRICAL TERMINALS CONNECTED TO SAID PLANAR AND SAID CONVEX MESH ELECTRODES AND TO SAID RING ELECTRODES FOR APPLYING POTENTIALS THERETO TO PROVIDE AN ELECTROSTATIC LENS BETWEEN SAID PLANAR AND SAID CONVEX MESH ELECTRODES SO THAT AN IMAGE FROM SAID PLANAR CATHODE IS AREA FOCUSED ON SAID PLANAR TARGET.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |