Patent US4511925A successfully refreshed from Google Patents.
US4511925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High intensity ultraviolet light video imaging apparatus
Assignee: Individual
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Filing: 1982-08-16
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Granted: 1985-04-16
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Expires: 2002-08-16
Abstract
Abstract A method and apparatus for producing a high intensity, ultraviolet, electronic video image is provided. The apparatus includes an electronic video imaging tube for printing on vesicular microfilm, diazo microfilm, and diazo paper and the like. The tube is constructed of a housing having an interior with an electron gun emitting a scanning electron beam across a path which intersects the interior of the housing. A phosphor target of ultraviolet phosphor is disposed within the housing interior and is positioned upon the path for reflecting therefrom a high intensity, ultraviolet video image. The phosphor target is preferably convex, and concentric with a curved surface portion of the housing. The curved surface portion of the housing reflects the high intensity, ultraviolet video image from the interior of the housing to the exterior portion thereof. A reduction lens assembly can be provided for diverging or converging the image as desired.
Inventors
- 👤 Joseph R. Mackenroth, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:47
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/23; H04N1/024; H04N1/032; H04N1/036
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
94 words
An ultraviolet, video imaging tube for printing on vesicular microfilm, diazo microfilm, and diazo paper and like medium comprising: a. housing means having an outer wall defining therewithin an interior; b. electron gun means penetrating the housing wall for emitting scanning electrons into the housing means across a path intersecting the interior of the housing means; and c. ultraviolet phosphor target means disposed within the housing means interior, and positioned on said path for converting the scanning electrons into a reflected high intensity, ultraviolet video image which can print upon an ultraviolet sensitive medium.
Claim 2
Dependent Claim
94 words
An ultraviolet, video imaging tube for printing on vesicular microfilm, diazo microfilm, and diazo paper and like medium comprising: a. housing means having an outer wall defining therewithin an interior; b. electron gun means penetrating the housing wall for emitting scanning electrons into the housing means across a path intersecting the interior of the housing means; and c. ultraviolet phosphor target means disposed within the housing means interior, and positioned on said path for converting the scanning electrons into a reflected high intensity, ultraviolet video image which can print upon an ultraviolet sensitive medium.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1 further comprising lens reduction assembly means for concentrating the high intensity, ultraviolet video image into a reduced image.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1, wherein said target means is a convex, phosphor target.
Claim 5
Dependent Claim
26 words
The apparatus of claim 1 which further comprises directing means on said housing means which directs the ultraviolet video image toward the medium to be printed.
Claim 6
Dependent Claim
38 words
The apparatus of claim 3 wherein said target is a circular convex disc with its convex surface facing the incoming electronic video signal so that the signal is reflected and diverged from the target toward the housing means.
Claim 7
Dependent Claim
22 words
The apparatus of claim 1 wherein the target means is a disc having a convex surface which is coated with ultraviolet phosphor.
Claim 8
Dependent Claim
19 words
The apparatus of claim 1 wherein the projecting means is a mirrored surface portion of said housing means wall.
Claim 9
Dependent Claim
19 words
The apparatus of claim 1 further comprising an ultraviolet sensitive surface positioned to receive the ultraviolet video image thereon.
Claim 10
Dependent Claim
17 words
The apparatus of claim 8 wherein the ultraviolet sensitive surface is diazo microfilm, or a diazo paper.
Claim 11
Dependent Claim
12 words
The apparatus of claim 9 wherein the ultraviolet surface is vesicular microfilm.
Claim 12
Independent Claim
65 words
A method of printing on ultraviolet light sensitive print media comprising the steps of: a. emitting a beam of scanning electrons across a beam path; b. placing an ultraviolet phosphor target on the path so that the emitted electrons strike the target to produce a relected ultraviolet video image; c. printing an image on the ultraviolet light sensitive media with the reflected ultraviolet video image.
Claim 13
Independent Claim
65 words
A method of printing on ultraviolet light sensitive print media comprising the steps of: a. emitting a beam of scanning electrons across a beam path; b. placing an ultraviolet phosphor target on the path so that the emitted electrons strike the target to produce a relected ultraviolet video image; c. printing an image on the ultraviolet light sensitive media with the reflected ultraviolet video image.
Claim 14
Dependent Claim
15 words
The method of claim 11 wherein in step "a" the electrons are in a vacuum.
Claim 15
Dependent Claim
14 words
The method of claim 11 wherein the ultraviolet light sensitive media is diazo paper.
Claim 16
Dependent Claim
14 words
The method of claim 11 wherein the ultraviolet light sensitive media is diazo microfilm.
Claim 17
Dependent Claim
14 words
The method of claim 11 wherein the ultraviolet light sensitive media is vesicular microfilm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |