US3828277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral capacitor lateral discharge laser
Assignee: United States Department of the Army
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Filing: 1973-07-03
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Granted: 1974-08-06
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Expires: 1993-07-03
Abstract
Abstract A high pressure gas laser is described in which uniform electrical field distribution is obtained for lateral discharge in the gas by employing a capacitor formed within the laser cavity. The laser may be a parallelepiped with capacitor plates forming two opposite rides of the parallelepiped. One of the plates is coated with a ceramic dielectric. Alternatively, the laser may be a conductive circular cylinder with a center electrode, and with a ceramic dielectric coating on the inside of the cylinder. A high voltage source is connected to the laser. Emission occurs when the capacitor charges to a high enough voltage to discharge through the gas. For better charge distribution, the coating may be covered by a resistive layer, or may have a mosaic of isolated conductors thereon.
Inventors
- 👤 W Otto
- 👤 R Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:35
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/038; H01S3/0388; H01S3/09; H01S3/097; H01S3/0971
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
85 words
In an internal capacitor lateral discharge laser: a gas-tight housing; a gas in said housing capable of lasing; a first elongated electrode in said housing; a second elongated electrode in said housing parallel to said first electrode; and a dielectric coating covering said second electrode; a high voltage power supply having different polarity terminals; means for directly connecting respective terminals of said power supply to said electrodes; further including a resistance coating on said dielectric coating; whereby said first and second electrodes form a capacitor.
Claim 2
Dependent Claim
85 words
In an internal capacitor lateral discharge laser: a gas-tight housing; a gas in said housing capable of lasing; a first elongated electrode in said housing; a second elongated electrode in said housing parallel to said first electrode; and a dielectric coating covering said second electrode; a high voltage power supply having different polarity terminals; means for directly connecting respective terminals of said power supply to said electrodes; further including a resistance coating on said dielectric coating; whereby said first and second electrodes form a capacitor.
Claim 3
Dependent Claim
88 words
In an internal capacitor lateral discharge laser: a gas-tight housing; a gas in said housing capable of lasing; a first elongated electrode in said housing; a second elongated electrode in said housing parallel to said first electrode; and a dielectric coating covering said second electrode; a high voltage power supply having different polarity terminals; means for directly connecting respective terminals of said power supply to said electrodes; further including a mosaic of isolated conductive chips on said dielectric layer; whereby said first and second electrodes form a capacitor.
Claim 4
Dependent Claim
88 words
In an internal capacitor lateral discharge laser: a gas-tight housing; a gas in said housing capable of lasing; a first elongated electrode in said housing; a second elongated electrode in said housing parallel to said first electrode; and a dielectric coating covering said second electrode; a high voltage power supply having different polarity terminals; means for directly connecting respective terminals of said power supply to said electrodes; further including a mosaic of isolated conductive chips on said dielectric layer; whereby said first and second electrodes form a capacitor.
Claim 5
Dependent Claim
42 words
The laser as set forth in claim 1 further including Switch means, and wherein said electrodes are connected to one terminal of said power supply, and said resistance coating is connectable to another terminal of said power supply by said switch means.
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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |