Patent LU68822A1 successfully refreshed from Google Patents.
Patent US3633065A successfully refreshed from Google Patents.
US3633065A
Expired / Lapsed
US
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Shaped beam tube
Assignee: ANACOMP Inc 11550 NORTH MERIDAN STREET CARMEL INDIANA 46032 A CORP OF INDIANA
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Filing: 1969-10-21
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Granted: 1972-01-04
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Expires: 1989-10-21
Abstract
Abstract A shaped beam tube is described wherein the means for shaping the cross section of the beam include a pair of axially spaced electron opaque members, each having a set of apertures therein. Each aperture in one set corresponds to an aperture in the other set for producing a particular desired image. The opaque members are positioned with their corresponding apertures aligned on the path of the electron beam.
Inventors
- 👤 Robert H Compton
- 👤 Alexander Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:35
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
189 words
A shaped beam tube comprising an evacuated envelope, an electron beam source within said envelope, an electron responsive target within said envelope and spaced from said source, electron lens means between said source and said target for focusing the electron beam, means between said source and said target for forming at least a portion of the cross section of the beam into a predetermined shape to produce a correspondingly shaped image on the target, and means for directing said electron beam through said forming means along a selected path substantially parallel to an axis between said source and said target, said forming means including a pair of axially spaced electron opaque members, each having a set of apertures therein, said sets of apertures in said respective opaque members being arranged similarly so that each aperture in one set has a corresponding aperture at the corresponding position in the other and with each pair of corresponding apertures in said sets being shaped to produce a particular predetermined image, said plates being positioned transversely of the electron beam and with their corresponding apertures aligned with the path of the electron beam.
Claim 2
Dependent Claim
189 words
A shaped beam tube comprising an evacuated envelope, an electron beam source within said envelope, an electron responsive target within said envelope and spaced from said source, electron lens means between said source and said target for focusing the electron beam, means between said source and said target for forming at least a portion of the cross section of the beam into a predetermined shape to produce a correspondingly shaped image on the target, and means for directing said electron beam through said forming means along a selected path substantially parallel to an axis between said source and said target, said forming means including a pair of axially spaced electron opaque members, each having a set of apertures therein, said sets of apertures in said respective opaque members being arranged similarly so that each aperture in one set has a corresponding aperture at the corresponding position in the other and with each pair of corresponding apertures in said sets being shaped to produce a particular predetermined image, said plates being positioned transversely of the electron beam and with their corresponding apertures aligned with the path of the electron beam.
Claim 3
Dependent Claim
19 words
A shaped beam tube according to claim 1 wherein each of said electron opaque members is a metallic plate.
Claim 4
Dependent Claim
37 words
A shaped beam tube according to claim 2 wherein each plate has the apertures therein arranged in a matrix, and wherein means are provided for supporting said plates in axial and rotational alignment on a common axis.
Claim 5
Dependent Claim
42 words
A shaped beam tube according to claim 1 wherein the apertures define characters made up of lines, wherein the lines forming the apertures in the electron opaque member closest to said source are substantially wider than in the other electron opaque member.
Claim 6
Dependent Claim
40 words
A shaped beam tube according to claim 4 wherein the lines forming the apertures in the electron opaque member closest to said source are approximately double the width of the lines forming the apertures in the other electron opaque member.
Claim 7
Dependent Claim
42 words
A shaped beam tube according to claim 4 wherein the lines forming the apertures in the electron opaque member closest to said source are substantially greater than double the width of the lines forming the apertures in the other electron opaque member.
Claim 8
Dependent Claim
44 words
A shaped beam tube according to claim 1 wherein the apertures define characters made up of lines, wherein the lines forming the apertures in the electron opaque member closest to said target are at least as wide as in the other electron opaque member.
Claim 9
Dependent Claim
86 words
A shaped beam tube according to claim 1 wherein the apertures define characters made up of lines, wherein each of said electron opaque members comprise plates of a thickness between about one-half mil to about 3 mils, and wherein said plates are spaced apart along the axis of the tube a distance which is not less than about the thickness of said plates and which is not greater than about 20 times the width of the narrowest character line in the plate closest to said target.
Claim 10
Dependent Claim
32 words
A shaped beam tube according to claim 8 wherein the material of which said plates are comprised is a metal selected from the group consisting of beryllium copper, oxygen-free copper, and nIckel.
Claim 11
Dependent Claim
45 words
A shaped beam tube according to claim 4 including means for operating said shaped beam tube with a potential on said electron opaque member closest to said source which is positive with respect to said source, and with said other opaque member substantially more positive.
Claim 12
Dependent Claim
58 words
A shaped beam tube according to claim 7 including means for operating said shaped beam tube with a potential on the electron opaque member closest to said target which is negative with respect to said electron beam source, and with a potential on the other electron opaque member which is positive with respect to said electron beam source.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |