US4763978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber connector
Assignee: Furukawa Electric North America Inc
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Filing: 1986-10-03
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Granted: 1988-08-16
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Expires: 2006-10-03
Abstract
Abstract The optical fiber connector of the present invention comprises a plurality of spaced-apart optical fiber receiving holes (or tubes) formed at one end of the connector and a spherical mirror formed at another end of the connector. The receiving holes are disposed on respective sides of the principal axis of the spherical mirror and the bottoms of the holes are collinear with and equidistant from the center of curvature of the mirror. Light signals emitted by an optical fiber inserted in one of the holes impinge on the mirror and are reflected in the direction of an optical fiber inserted in another one of the holes. The connector may be readily adapted to optically connect N+1 fibers together.
Inventors
- 👤 Jeofry S. Courtney-Pratt
- 👤 James R. McEowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:51
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2817; G02B6/262
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
175 words
A connector comprising a body of material having first and second ends, said first end being spherically shaped and coated with a reflective material to form a spherical mirror having a predetermined center of curvature, and first and second holes formed in said second end for receiving respective signal conductors, the interior ends of said holes being collinear with said center of curvature, said second end being split to form a gap of a predetermined depth and an exterior portion of said body of material at said second end being tapered and threaded, whereby when said signal conductors are inserted into respective ones of said first and second holes and a collar having interior threads is threaded onto said tapered threads said gap closes, thereby causing said split end to grip said conductors, and whereby light signals emitted by one of said signal conductors inserted in one of said holes impinge on said spherical mirror and are focused thereby to the other one of said signal conductors inserted in the other one of said holes.
Claim 2
Dependent Claim
175 words
A connector comprising a body of material having first and second ends, said first end being spherically shaped and coated with a reflective material to form a spherical mirror having a predetermined center of curvature, and first and second holes formed in said second end for receiving respective signal conductors, the interior ends of said holes being collinear with said center of curvature, said second end being split to form a gap of a predetermined depth and an exterior portion of said body of material at said second end being tapered and threaded, whereby when said signal conductors are inserted into respective ones of said first and second holes and a collar having interior threads is threaded onto said tapered threads said gap closes, thereby causing said split end to grip said conductors, and whereby light signals emitted by one of said signal conductors inserted in one of said holes impinge on said spherical mirror and are focused thereby to the other one of said signal conductors inserted in the other one of said holes.
Claim 3
Dependent Claim
29 words
The connector set forth in claim 1 wherein the interior ends of said first and second holes are disposed equal distances from the principal axis of said spherical mirror.
Claim 4
Dependent Claim
153 words
A connector comprising a body of material, a plurality of holes having respective predetermined depths formed at one end of said body of material, said one end being split to form a gap and the exterior portion of said body of material at said one end being tapered and threaded to receive a collar having interior threads, said collar when threaded onto said tapered threads causing said split end to grip signal conductors inserted in respective ones of said holes, and at least one curved surface coated with a reflective material formed at another end of said body of material, the shape of said at least one curved surface and the predetermined depths of the interior ends of said holes being such that light signals emitted by one of said signal conductors, impinge on said at least one curved surface and are reflected thereby to at least another one of said signal conductors.
Claim 5
Dependent Claim
153 words
A connector comprising a body of material, a plurality of holes having respective predetermined depths formed at one end of said body of material, said one end being split to form a gap and the exterior portion of said body of material at said one end being tapered and threaded to receive a collar having interior threads, said collar when threaded onto said tapered threads causing said split end to grip signal conductors inserted in respective ones of said holes, and at least one curved surface coated with a reflective material formed at another end of said body of material, the shape of said at least one curved surface and the predetermined depths of the interior ends of said holes being such that light signals emitted by one of said signal conductors, impinge on said at least one curved surface and are reflected thereby to at least another one of said signal conductors.
Claim 6
Dependent Claim
49 words
The connector set forth in claim 3 wherein said at least one curved surface forms at least one spherical mirror at said other end of said body of material, the interior ends of said holes being collinear with the center of curvature of said at least one spherical mirror.
Claim 7
Dependent Claim
29 words
The connector set forth in claim 4 wherein the interior ends of said holes are disposed equal distances from the principal axis of said at least one spherical mirror.
Claim 8
Dependent Claim
156 words
A connector comprising a body of material having first and second ends, said first end having a plurality of segments of respective curved surfaces formed therein, the exterior of each of said segments being coated with a reflective material to form respective segments of spherical mirrors and at least one of said segments of spherical mirrors being smaller than at least one other one of said segments of spherical mirrors, and a plurality of holes formed in said second end of said material for receiving respective signal conductors, the interior ends of individual ones of said holes being collinear with the radius of curvature of respective ones of said segments of spherical mirrors such that optical signals emitted by a signal conductor inserted in one of said holes impinge on at least one of said segments and are reflected thereby toward at least another one of said signal conductors inserted in another one of said holes.
Claim 9
Dependent Claim
156 words
A connector comprising a body of material having first and second ends, said first end having a plurality of segments of respective curved surfaces formed therein, the exterior of each of said segments being coated with a reflective material to form respective segments of spherical mirrors and at least one of said segments of spherical mirrors being smaller than at least one other one of said segments of spherical mirrors, and a plurality of holes formed in said second end of said material for receiving respective signal conductors, the interior ends of individual ones of said holes being collinear with the radius of curvature of respective ones of said segments of spherical mirrors such that optical signals emitted by a signal conductor inserted in one of said holes impinge on at least one of said segments and are reflected thereby toward at least another one of said signal conductors inserted in another one of said holes.
Claim 10
Dependent Claim
57 words
A connector comprising a plurality of holes for receiving respective optical conductors, and a plurality of segments of respective spherical mirrors for reflecting light signals emitted by one of said optical conductors toward at least another one of said optical conductors, at least one of said segments being smaller than at least another one of said segments.
Claim 11
Dependent Claim
57 words
A connector comprising a plurality of holes for receiving respective optical conductors, and a plurality of segments of respective spherical mirrors for reflecting light signals emitted by one of said optical conductors toward at least another one of said optical conductors, at least one of said segments being smaller than at least another one of said segments.
Claim 12
Dependent Claim
38 words
The connector set forth in claim 7 wherein individual ones of said holes each have an interior end that is disposed a predetermined distance from the principal axis of its respective one of said segments of spherical mirrors.
Claim 13
Dependent Claim
36 words
The connector set forth in claim 7 wherein individual ones of said holes each have an interior end that is collinear with the center of curvature of its respective one of said segments of spherical mirrors.
References Cited (Backward Citations)
US3883223A
Cited
US4155624A
Cited
US4145110A
Cited
US4365864A
Cited
US4479697A
Cited
US4329017A
Cited
US4405200A
Cited
US4291941A
Cited
US4487474A
Cited
US4484793A
Cited
US4465333A
Cited
US4486071A
Cited
US4651315A
Cited
US4675860A
Cited
US4493529A
Cited
US4591237A
Cited
US4684208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |