US3660778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser beam folding device
Assignee: Individual
•
Filing: 1970-06-16
•
Granted: 1972-05-02
•
Expires: 1990-06-16
Abstract
Abstract The resonant cavity of anionized gas laser device is elongated by conducting a laser beam between internal reflectors along a plurality of parallel plasma tubes located between beam folding reflectors in a gas discharge region. The plasma tubes are cooled by a circulating coolant and the length of the resonant cavity is adjustable adjacent to the internal reflectors.
Inventors
- 👤 Leo J Le Blanc Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:24
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/032; H01S3/0323; H01S3/04; H01S3/041; H01S3/05; H01S3/06; H01S3/07; H01S3/073; H01S3/076; H01S3/08; H01S3/081
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
144 words
An optical laser comprising an elongated housing having opposite end portions containing a gaseous host medium and an intermediate cooling region, partition means separating the cooling region from the end portions, a pair of internal reflectors mounted in spaced relation to each other in one of said end portions, beam folding means mounted at both of said end portions for establishing an elongated optical resonant cavity between said pair of internal reflectors, a plurality of capillary tubes supported within the cooling region establishing fluid communication between the end portions and an optical path between the beam folding means, one of said pair of internal reflectors and the beam folding means having optimum reflectivity at the wavelength of laser oscillation and the other of said pair of internal reflectors having a relatively reduced reflectivity at said wavelength whereby a pulsed output beam is transmitted therethrough.
Claim 2
Dependent Claim
144 words
An optical laser comprising an elongated housing having opposite end portions containing a gaseous host medium and an intermediate cooling region, partition means separating the cooling region from the end portions, a pair of internal reflectors mounted in spaced relation to each other in one of said end portions, beam folding means mounted at both of said end portions for establishing an elongated optical resonant cavity between said pair of internal reflectors, a plurality of capillary tubes supported within the cooling region establishing fluid communication between the end portions and an optical path between the beam folding means, one of said pair of internal reflectors and the beam folding means having optimum reflectivity at the wavelength of laser oscillation and the other of said pair of internal reflectors having a relatively reduced reflectivity at said wavelength whereby a pulsed output beam is transmitted therethrough.
Claim 3
Dependent Claim
23 words
The combination of claim 1 including electrode means mounted adjacent said end portions for establishing a plasma discharge region within the capillary tubes.
Claim 4
Dependent Claim
29 words
The combination of claim 2 wherein each of said internal reflectors has a spherical surface with a radius of curvature substantially equal to the length of the resonant cavity.
Claim 5
Dependent Claim
21 words
The combination of claim 3 including means for axially adjusting the length of the housing adjacent one of the ends thereof.
Claim 6
Dependent Claim
22 words
The combination of claim 4 including means for circulating coolant through the cooling region in heat transfer relation to the capillary tubes.
Claim 7
Dependent Claim
29 words
The combination of claim 1 wherein each of said internal reflectors has a spherical surface with a radius of curvature substantially equal to the length of the resonant cavity.
Claim 8
Dependent Claim
21 words
The combination of claim 1 including means for axially adjusting the length of the housing adjacent one of the ends thereof.
Claim 9
Dependent Claim
22 words
The combination of claim 1 including means for circulating coolant through the cooling region in heat transfer relation to the capillary tubes.
Claim 10
Dependent Claim
72 words
In an optical laser, an elongated housing enclosing a plasma discharge region, beam folding means mounted by the housing in axially spaced relation to each other, and means for establishing an optical path between said beam folding means to form an elongated resonant cavity, including a pluraLity of spaced capillary tubes within the plasma discharge region, and means supporting the tubes within a cooling region axially spaced from the beam folding means.
Claim 11
Dependent Claim
72 words
In an optical laser, an elongated housing enclosing a plasma discharge region, beam folding means mounted by the housing in axially spaced relation to each other, and means for establishing an optical path between said beam folding means to form an elongated resonant cavity, including a pluraLity of spaced capillary tubes within the plasma discharge region, and means supporting the tubes within a cooling region axially spaced from the beam folding means.
Claim 12
Dependent Claim
29 words
The combination of claim 9 including a total internal reflector and an output reflector mounted adjacent one of the beam folding means to form part of the resonant cavity.
Claim 13
Dependent Claim
23 words
The combination of claim 10 including means for axially adjusting the length of the resonant cavity adjacent one of the beam folding means.
Claim 14
Dependent Claim
23 words
The combination of claim 9 including means for axially adjusting the length of the resonant cavity adjacent one of the beam folding 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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |