US3707657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Target structure for a vidicon tube and methods of producing the same
Assignee: Siemens AG
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Filing: 1970-12-02
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Granted: 1972-12-26
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Expires: 1990-12-02
Abstract
Abstract A vidicon tube target structure wherein a n-conductive signal plate has a target surface thereof provided with a p-conductive layer and an array of fine grooves extend from this layer downwardly beyond the p-conductive layer into the signal plate to define an array of mesa-like p-conducitve land areas. The peripheral groove walls are coated with an insulator material while the land areas are coated with a conductive metal. The grooves and lands are configured to provide an increased amount of utilizable effective target surface area for a scanning electron beam.
Inventors
- 👤 Werner Veith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:56
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; 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; H10D; H10D99/00; H10P; H10P50/00; H10P50/69; H10P50/691; H10P95/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
36 words
An electron beam storage light-sensitive target structure as defined in claim 1 wherein the p-conductive regions have a larger surface area exposed to a scanning electron beam than the similarly exposed surface area of the grooves.
Claim 2
Dependent Claim
43 words
An electron beam storage light-sensitive target structure as defined in claim 1 wherein the grooves have concave peripheral walls terminating in a relatively narrow mouth portion and the p-conductive regions have peripheral side edges which extend over said concave walls of the grooves.
Claim 3
Dependent Claim
41 words
An electron beam storage light-sensitive target struCture as defined in claim 1 wherein the ratio of an axial linear dimension of a groove to an axial linear dimension of a p-conductive region is in the range of about 1:5 to 1:10.
Claim 4
Dependent Claim
38 words
An electron beam storage light-sensitive target structure as defined in claim 1 wherein each of the p-conductive regions have a surface area of a size that is at least encompassed by the diameter of a scanning electron beam.
Claim 5
Dependent Claim
22 words
An electron beam storage light-sensitive target structure as defined in claim 1 wherein the p-conductive regions have a geometrically regular surface configuration.
Claim 6
Dependent Claim
23 words
An electron beam storage light-sensitive target structure as defined in claim 1 wherein the conductive metal layer has a geometrically irregular surface configuration.
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |