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US3581231A Expired / Lapsed US ⏱️ 0.0 years remaining

Ultra-stable laser cavity mirror support assembly

Assignee: United States Department of the Air Force
•
Filing: 1969-06-17
•
Granted: 1971-05-25
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Expires: 1989-06-17
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Abstract

Abstract An ultrastable laser cavity mirror support assembly, for use with laser utilizing external mirrors, which prevents laser output loss caused by mirror misalignment. The assembly includes: a beryllium open-ended tube; two circumferential supports for the tube, each located a predetermined equal distance inward from the nearest end of the tube; first and second counterweighted flat plates affixed, respectively, to each end of the tube and parallel to each other; first and second mirror tuning mechanisms, each mounted on and supported by, respectively, the first and second counterweighted flat plates; and means for rigidly securing the tube, and components mounted and affixed thereto, to a laser housing and an external abutment in the desired orientation.

Inventors

  • 👤 Robert J Freiberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 09:22
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/086; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18752

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 30 words
adjustment-type screw, one for each said spider arm, threaded and of suitable dimensions to enter into, mate with, and pass through the threaded aperture of said spider-type mirror mount arm;
Claim 2
Dependent Claim 16 words
The assembly, as set forth in claim 1, wherein said open-ended support tube is of beryllium.
Claim 3
Dependent Claim 25 words
an expander-type screw, one for each said spider arm threaded and of suitable dimensions to enter into, mate with, and pass through said adjustment-type screw;
Claim 4
Dependent Claim 130 words
and, a gimbal-type retainer, one for each said spider arm, with a threaded stepdown aperture to accept and mate with said adjustment-type screw and said expander-type screw; e. first and second counterweights attached, respectively, to said first and said second flat plates, with said first and said second counterweights each being of a weight such that, together with the weight of said first and said second flat plates, and the weight of said means for mounting, and the weight of said means for tuning, exactly nullify the deformation of said support tube which is caused by the weight of said support tube; and f. and, means for attaching said support tube, said supports for said support tube, said flat plates, said means for mounting, and said counterweights, to an abutment.

References Cited (Backward Citations)

US3225307A Cited
US3428915A Cited
US3400596A Cited
US3440563A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-24 1974-11-23 1975-05-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-24 1978-11-23 1979-05-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-24 1982-11-23 1983-05-25 $7700.00 Window Closed / Lapsed

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