Patent US3560795A successfully refreshed from Google Patents.
US3560795A
Expired / Lapsed
US
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High intensity short duration high repetition rate light source
Assignee: Individual
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Filing: 1969-09-29
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Granted: 1971-02-02
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Expires: 1989-09-29
Abstract
Abstract A light source having a lamp envelope with electrodes positioned therein a predetermined distance apart. A gaseous medium is provided within the envelope which has a predetermined pressure for providing a minimum duration maximum intensity output light pulse characteristic of the gaseous medium when a voltage pulse of comparable duration is applied across the electrodes to ionize the gaseous medium. The voltage pulse is provided by a pulseforming circuit which is adapted to be changed to a predetermined voltage from a source of electrical energy to generate the voltage pulse having a time duration comparable to the duration of the output light pulse. A circuit is also provided for periodically connecting the pulse-forming circuit to the electrodes to discharge the voltage pulse through the gaseous medium.
Inventors
- 👤 Slava A Pollack
- 👤 Richard C Mackey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:13
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
107 words
A source of light pulses comprising: a gas discharge lamp having electrodes therein; and a gaseous atmosphere in said lamp selected from the group consisting of (1) a mixture of mercury vapor at a partial pressure of 10-2 mm., of mercury and argon at a partial pressure between 50 and 70 mm., of mercury, (2) a mixture of nitrogen at a partial pressure between 70 and 90 mm., of mercury and oxygen at a partial pressure between 15 and 25 mm., of mercury, (3) hydrogen at a pressure less than 1 mm., of mercury and (4) deuterium at a pressure between 10 and 30 mm., of mercury.
Claim 2
Dependent Claim
107 words
A source of light pulses comprising: a gas discharge lamp having electrodes therein; and a gaseous atmosphere in said lamp selected from the group consisting of (1) a mixture of mercury vapor at a partial pressure of 10-2 mm., of mercury and argon at a partial pressure between 50 and 70 mm., of mercury, (2) a mixture of nitrogen at a partial pressure between 70 and 90 mm., of mercury and oxygen at a partial pressure between 15 and 25 mm., of mercury, (3) hydrogen at a pressure less than 1 mm., of mercury and (4) deuterium at a pressure between 10 and 30 mm., of mercury.
Claim 3
Dependent Claim
16 words
A source according to claim 1 wherein said gaseous atmosphere is the mercury vapor and argon.
Claim 4
Dependent Claim
15 words
A source according to claim 1 wherein said gaseous atmosphere is the nitrogen and oxygen.
Claim 5
Dependent Claim
13 words
A source according to claim 1 wherein said gaseous atmosphere is the hydrogen.
Claim 6
Dependent Claim
13 words
A source according to claim 1 wherein said gaseous atmosphere is the deuterium.
Claim 7
Dependent Claim
28 words
A source according to claim 1 further comprising: an electric pulse generator coupled to said electrodes for generating a voltage pulse to cause a discharge in said lamp.
Claim 8
Dependent Claim
15 words
A source according to claim 6 wherein said gaseous atmosphere is the mercury and argon.
Claim 9
Dependent Claim
15 words
A source according to claim 6 wherein said gaseous atmosphere is the nitrogen and oxygen.
Claim 10
Dependent Claim
13 words
A source according to claim 6 wherein said gaseous atmosphere is the hydrogen.
Claim 11
Dependent Claim
13 words
A source according to claim 6 wherein said gaseous atmosphere is the deuterium.
Claim 12
Dependent Claim
60 words
A source according to claim 6 wherein said pulse generator comprises: a pulse-forming circuit capable of being charged to a predetermined voltage from a supply of electrical energy for generating said voltage pulse; and means for periodically connecting said pulse forming circuit to the electrodes of said lamp to discharge said voltage pulse through said gaseous atmosphere in said lamp.
Claim 13
Dependent Claim
28 words
A source according to claim 11 further comprising means for maintaining said predetermined voltage across said periodically connecting means until said pulse-forming means is connected to said electrodes.
Claim 14
Dependent Claim
26 words
A source according to claim 11 wherein said pulse-forming circuit includes a length of coaxial cable providing a storage capacitor to be charged from said supply.
Claim 15
Dependent Claim
29 words
A source according to claim 11 wherein said periodically connecting means comprises normally open switch means, and means for generating a triggering signal to periodically close said switch means.
Claim 16
Dependent Claim
30 words
A source according to claim 14 wherein said switch means comprises a thyratron circuit means connected to said trigger generating means and adapted to be actuated by said triggering signal.
References Cited (Backward Citations)
US3078418A
Cited
US3088074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |