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US4673290A Expired / Lapsed US ⏱️ 0.0 years remaining

Diagnostic apparatus and method for use in the alignment of one or more laser means onto a fiber optics interface

Assignee: United States Department of Energy
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Filing: 1985-01-18
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Granted: 1987-06-16
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Expires: 2005-01-18
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Abstract

Abstract Diagnostic apparatus for use in determining the proper alignment of a plurality of laser beams onto a fiber optics interface is disclosed. The apparatus includes a lens assembly which serves two functions, first to focus a plurality of laser beams onto the fiber optics interface, and secondly to reflect and image the interface using scattered light to a monitor means. The monitor means permits indirect observation of the alignment or focusing of the laser beams onto the fiber optics interface.

Inventors

  • 👤 Steve A. Johnson
  • 👤 Robert R. Shannon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:49
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26; G01B11/27

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 152 words
Diagnostic apparatus for use in the alignment of one or more beams onto a fiber optics interface, said diagnostic apparatus comprising monitor means, lens assembly means for imaging one or more of said laser beams passing through an aperture onto said fiber optics interface, said assembly means being slightly offset in an optical orientation from its center line optical axis, said lens assembly means including at least one lens where said one lens includes reflection means on the rear surface of said one lens such that when a minor scattering of said laser beams are reflected from said interface back to said lens assembly means, said reflection means on said one lens reflects, images and directs said scattered light toward said monitor means, said monitor means being optically oriented to permit monitoring of said reflected light for indirect observation of the alignment of said focused laser beams onto said fiber optics interface.
Claim 2
Dependent Claim 152 words
Diagnostic apparatus for use in the alignment of one or more beams onto a fiber optics interface, said diagnostic apparatus comprising monitor means, lens assembly means for imaging one or more of said laser beams passing through an aperture onto said fiber optics interface, said assembly means being slightly offset in an optical orientation from its center line optical axis, said lens assembly means including at least one lens where said one lens includes reflection means on the rear surface of said one lens such that when a minor scattering of said laser beams are reflected from said interface back to said lens assembly means, said reflection means on said one lens reflects, images and directs said scattered light toward said monitor means, said monitor means being optically oriented to permit monitoring of said reflected light for indirect observation of the alignment of said focused laser beams onto said fiber optics interface.
Claim 3
Dependent Claim 24 words
The diagnostic apparatus of claim 1 wherein said offset of said lens assembly means from said center line optical axis is approximately 0.5 degrees.
Claim 4
Dependent Claim 18 words
The diagnostic apparatus of claim 2 wherein said monitor means include means for reflecting said scattered reflected beams.
Claim 5
Dependent Claim 13 words
The diagnostic apparatus of claim 3 wherein said reflecting means include a prism.
Claim 6
Dependent Claim 24 words
The diagnostic apparatus of claim 4 wherein said monitor means include a microscope objective to permit imaging of said reflected beams from said prism.
Claim 7
Dependent Claim 20 words
The diagnostic apparatus of claim 5 wherein said monitor means include means to permit observation of said imaged reflected light.
Claim 8
Dependent Claim 14 words
The diagnostic apparatus of claim 6 wherein said observation means includes a television camera.
Claim 9
Dependent Claim 27 words
The diagnostic apparatus of claim 4 wherein the back side of said lens assembly means is uncoated to permit reflection of said scattered beams toward said prism.
Claim 10
Dependent Claim 14 words
The diagnostic apnaratus of claim 3 wherein said reflecting means include a reflecting mirror.
Claim 11
Dependent Claim 156 words
Diagnostic apparatus for use in the alignment of one or more laser beams onto a fiber optics interface, said diagnostic apparatus comprising monitor means, lens assembly means for focusing one or more of said laser beams onto said fiber optics interface, said lens assembly menas being slightly offset in an optical orientation from its center line optical axis, said lens assembly means including at least one lens where said one lens includes reflection means on the rear surface of said one lens such that when a minor scattering of said laser beams are reflected from said interface back to said lens assebmly means, said one lens includes means for reflecting scattered ones of said laser beams for said fiber optics interface toward said monitor means, said monitor means being optically oriented to permit monitoring of said scattered, reflected laser beams for indirect observation of the alignment of said focused laser beams onto said fiber optics interface.
Claim 12
Dependent Claim 156 words
Diagnostic apparatus for use in the alignment of one or more laser beams onto a fiber optics interface, said diagnostic apparatus comprising monitor means, lens assembly means for focusing one or more of said laser beams onto said fiber optics interface, said lens assembly menas being slightly offset in an optical orientation from its center line optical axis, said lens assembly means including at least one lens where said one lens includes reflection means on the rear surface of said one lens such that when a minor scattering of said laser beams are reflected from said interface back to said lens assebmly means, said one lens includes means for reflecting scattered ones of said laser beams for said fiber optics interface toward said monitor means, said monitor means being optically oriented to permit monitoring of said scattered, reflected laser beams for indirect observation of the alignment of said focused laser beams onto said fiber optics interface.
Claim 13
Dependent Claim 178 words
In a method for use in an optical alignment system including diagnostic apparatus for use in the alignemtn of one or more laser beams onto a fiber optics interface, the method comprising the steps of providing a monitor means and a lens assembly means where said lens assembly means includes at least one lens where said one lens includes reflection means on the rear surface of said one lens, focusing one or more of said laser beams onto the fiber optics interface, orienting said lens assembly means in a slightly offset position from its center line optical axis such that when minor scattering of said laser beams are reflected from said interface back to said lens assembly means, such that said rear surface of said one lens operates to reflect scattered one or more of said laser beams from said fiber optics interface toward said monitor means, and optically orienting said monitor means to permit monitoring of said scattered, reflected laser light for indirect observation of the alignment of said focused laser beams onto said fiber optics interface.
Claim 14
Dependent Claim 178 words
In a method for use in an optical alignment system including diagnostic apparatus for use in the alignemtn of one or more laser beams onto a fiber optics interface, the method comprising the steps of providing a monitor means and a lens assembly means where said lens assembly means includes at least one lens where said one lens includes reflection means on the rear surface of said one lens, focusing one or more of said laser beams onto the fiber optics interface, orienting said lens assembly means in a slightly offset position from its center line optical axis such that when minor scattering of said laser beams are reflected from said interface back to said lens assembly means, such that said rear surface of said one lens operates to reflect scattered one or more of said laser beams from said fiber optics interface toward said monitor means, and optically orienting said monitor means to permit monitoring of said scattered, reflected laser light for indirect observation of the alignment of said focused laser beams onto said fiber optics interface.

References Cited (Backward Citations)

US3214596A Cited
US3782829A Cited
US3938895A Cited
US4197007A Cited
US4220411A Cited
US4260254A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-06-15 1990-12-15 1991-06-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-06-15 1994-12-15 1995-06-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-06-15 1998-12-15 1999-06-16 $7700.00 Window Closed / Lapsed

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