EP0067797A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Longitudinal discharge pulse laser with pre-ionization obtained by means of corona effect
Assignee: Leonardo SpA
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Filing: 1982-06-07
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Granted: —
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Expires: 2002-06-07
Abstract
Abstract Longitudinal discharge pulse laser characterized by the fact that it uses preionization by corona effect, the said laser being essentially constituted by three electrodes of which one is common and two are fed by negative pulses, and in which the said electrodes are joined by two glass tubes within which are produced the two discharges under the command of the thyratron and in which the said pre. ionization is obtained by feeding a high voltage pulse through metal rings placed on the said glass tubes, a delay being established between the beginning of the pre- ionization and the trigger of the main discharge.
Inventors
- 👤 Eugenio Penco
- 👤 Renato Marchetti
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/097; H01S3/0977
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
Longitudinal discharge pulse laser characterizelby the fact that it uses preionization by corona effect, the said laser being essentially constituted by three electrodes of which one is common and two are fed by negative pulses, and in which the said electrodes are joined by two glass tubes within which are produced the two discharges under the command of the thyratron and in which the said pre-ionization is obtained by feeding a high voltage pulse through metal rings placed on the said glass tubes, a delay being established between the beginning of the pre-ionization and the trigger of the main discharge.
Claim 2
Dependent Claim
100 words
Longitudinal discharge pulse laser characterizelby the fact that it uses preionization by corona effect, the said laser being essentially constituted by three electrodes of which one is common and two are fed by negative pulses, and in which the said electrodes are joined by two glass tubes within which are produced the two discharges under the command of the thyratron and in which the said pre-ionization is obtained by feeding a high voltage pulse through metal rings placed on the said glass tubes, a delay being established between the beginning of the pre-ionization and the trigger of the main discharge.
Claim 3
Dependent Claim
24 words
Longitudinal discharge laser as in claim 1 in which the said pump discharge is obtained by discharging a capacitor by means of a thyratron.
Claim 4
Dependent Claim
16 words
Longitudinal discharge laser as in claim 1 in which the said delay is 7 / usec.
Claim 5
Dependent Claim
47 words
Longitudinal discharge laser as in claims 1 and 2 in which the thyratron is omitted from the control circuit and the pump capacitor voltage is maintained below the self-triggering voltage so that the discharge is obtained as soon as the gas is ionized by the pre-ionization discharge.
Claim 6
Dependent Claim
14 words
Longitudinal discharge laser as in the preceding claims essentially as illustrated claimed and described.
References Cited (Backward Citations)
No citation records indexed.
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