Patent US3693017A successfully refreshed from Google Patents.
US3693017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply for image converter
Assignee: Individual
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Filing: 1971-02-22
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Granted: 1972-09-19
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Expires: 1991-02-22
Abstract
Abstract A viewing apparatus which includes an image converter tube having a cathode and a phosphorous screen for visual observation is powered by a pair of piezoelectric converters circuityly arranged with a common connection to the cathode of the image converter tube and with each having a second connection to the anodes of a high-vacuum rectifier; the high-vacuum rectifier also includes a photo-cathode which is disposed in light receiving arrangement with the phosphorous screen of the image converter tube; a capacitor is disposed in parallel connection with said piezoelectric converters and said high-vacuum rectifier across the cathode and phosphorous screen of the image converter tube so that the piezoelectric converters and the high-vacuum rectifier when activated build up a charge across the capacitor for powering the image converter tube.
Inventors
- 👤 Franz Fick
- 👤 Otto Kobelentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:26
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/50; H01J31/501
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A viewing apparatus comprising an objective system; means for converting an image received through said objective system on an image converter cathode into an intensified visible image on a screen; capacitor means for building up an electric charge across said image converter cathode and said screen; a pair of piezoelectric converters arranged having a common connection to said iMage converter cathode and each having a second connection, said pair of piezoelectric converters being each disposed for generating a voltage of opposite polarity across said common connection and its said second connection when pressure is applied thereto; photo means for generating a current responsive to said visible image on said screen; and means for rectifying the current generated by both said photo means and said pair of piezoelectric converters, said second connection of said pair of piezoelectric converters being arranged with said means for rectifying in a push pull arrangement.
Claim 2
Dependent Claim
149 words
A viewing apparatus comprising an objective system; means for converting an image received through said objective system on an image converter cathode into an intensified visible image on a screen; capacitor means for building up an electric charge across said image converter cathode and said screen; a pair of piezoelectric converters arranged having a common connection to said iMage converter cathode and each having a second connection, said pair of piezoelectric converters being each disposed for generating a voltage of opposite polarity across said common connection and its said second connection when pressure is applied thereto; photo means for generating a current responsive to said visible image on said screen; and means for rectifying the current generated by both said photo means and said pair of piezoelectric converters, said second connection of said pair of piezoelectric converters being arranged with said means for rectifying in a push pull arrangement.
Claim 3
Dependent Claim
25 words
A viewing apparatus as claimed in claim 3 wherein said capacitor means is formed substantially only by the electrode capacitances of said image converter tube.
Claim 4
Dependent Claim
20 words
A viewing apparatus as claimed in claim 1 wherein said means for converting an image is an image converter tube.
Claim 5
Dependent Claim
50 words
A viewing apparatus as claimed in claim 3 wherein said means for rectifying is a high-vacuum rectifier having a pair of anodes, each of said anodes being in common with one of said second connections of said pair of piezoelectric converters so as to form a push pull circuit arrangement.
Claim 6
Dependent Claim
42 words
A viewing apparatus as claimed in claim 4 wherein said photo means is a photo-cathode of said high-vacuum rectifier, said photo-cathode being disposed in light receiving relationship with said screen, whereby said photo-cathode is excited by the stray light of said screen.
Claim 7
Dependent Claim
62 words
A viewing apparatus as claimed in claim 5 wherein said high-vacuum rectifier and said piezoelectric converters are in push-pull arrangement, each of said anodes being connected in common with said second connection of said piezoelectric converter and said piezoelectric converters and said high-vacuum rectifier are arranged in parallel connection with said capacitor means and with said image converter cathode and said screen.
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) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |