CA1126551A - Fibre optic connector - Google Patents
Fibre optic connectorInfo
- Publication number
- CA1126551A CA1126551A CA351,057A CA351057A CA1126551A CA 1126551 A CA1126551 A CA 1126551A CA 351057 A CA351057 A CA 351057A CA 1126551 A CA1126551 A CA 1126551A
- Authority
- CA
- Canada
- Prior art keywords
- ferrules
- connector element
- connector
- optical fiber
- ferrule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
- G02B6/383—Hermaphroditic connectors, i.e. two identical plugs mating with one another, each plug having both male and female diametrically opposed engaging parts
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
- G02B6/325—Optical coupling means having lens focusing means positioned between opposed fibre ends comprising a transparent member, e.g. window, protective plate
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
- G02B6/387—Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
M. A. Matthews et al. 13-2-1 FIBER OPTIC CONNECTOR
ABSTRACT OF THE DISCLOSURE
In a fiber optic connector element two or more fiber optic cables are each terminated in a ferrule whose end con-tains a beam expanding lens. The ferrules are tapered and each of them fits into a correspondingly tapered hole in an insert within the body of the connector element. The ends of the ferrules are substantially in the same plane and are adjacent to a transparent window which is mounted in a bezel surrounding the insert. When two such connector elements are mated, their windows are close to each other and parallel to each other, and each ferrule in one element is optically aligned with a ferrule in the other element. The casings and bodies of the connector elements may be constructed her-maphroditically.
ABSTRACT OF THE DISCLOSURE
In a fiber optic connector element two or more fiber optic cables are each terminated in a ferrule whose end con-tains a beam expanding lens. The ferrules are tapered and each of them fits into a correspondingly tapered hole in an insert within the body of the connector element. The ends of the ferrules are substantially in the same plane and are adjacent to a transparent window which is mounted in a bezel surrounding the insert. When two such connector elements are mated, their windows are close to each other and parallel to each other, and each ferrule in one element is optically aligned with a ferrule in the other element. The casings and bodies of the connector elements may be constructed her-maphroditically.
Description
" 11~65Sl FIBER OPTIC CONNECTOR
BACKGROUND OF THE INVENTION
The present invention relates to an optical fiber connector.
In the design of optical fiber connectors it is necessary for the mating connector elements to mate with the fibers in the two elements accurately aligned one with the other to minimize light transmission losses. An object of this invention is to provide a connector in which low loss mating is achieved. Prior art references which may be considered pertinent to the invention are U.S. Patents Nos. 3,455,625;
3,963,323; 3,984,174; 4,047,797; 4,088,390 and 4,184,742.
SUMMARY OF THE INVENTION
According to a principal aspect of the invention there is provided an optical fiber connector element comprising an insert body embodying a front end portion having a plurality of axially extending tunnel-like cavities therein. A ferrule is provided in each said cavity adapted to terminate an optical fiber. The forward ends of the ferrules all lie substantially in the same plane, and said plane is substantially normal to the longitudinal axes of the ferrules. A bezel is slidably mounted over the front end of the body. The bezel has an opening in its forward end the perimeter of which surrounds all of the ferrule cavities. An optically transparent window closes the opening in the bezel. The ends of the ferrules are 25 positioned close to but slightly behind the inner surface of the window. Means permit mating of the connector element with a like connector element so that their windows are close and parallel to each other with the ferrules in one of the elements optically aligned with the ferrules in the other element. The 30 bezel is removable from the insert body so that the window thereof and the ferrules may be cleaned.
BRIEF DESCRIPTION OF THE DRAWINGS
. _ Fig. 1 is a side view of two mated connector elements each of which embodies the invention;
Fig. 2 is an exploded view of parts of one connector element to which the invention may be applied;
~lZ65~1 Fig. 3 is a partial l~ngitudinal sectional view of two mated connector elements embodying the invention;
Fig. 4 is a partial sectional view showing one connector element secured to a wall; and Fig. 5 is an elevational view of a shear ring used in the connector element of Fig. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Fig. 1 shows two connector elements 10 of the present invention coupled together. Each connector element has an external ribbed coupling nut 12 of substantial proportion (compared with the size of the optical fiber cables 14 terminated to the connector elements). The connector sheil portions 16 of the elements 10 are of hermaphroditic form facilitating the engagement and coupling of the free connector elements in adverse conditions, e.g. in poor light. Each of the elements is provided with a dust cover 18 which, when the elements are not in use, are fitted over the front ends of the elements. ~hen two elements are mated, as shown in Fig. 1, their dust covers are fitted together, as shown, for convenience.
Fig. 2 shows the assembly of part of one connector element 10 before it is fitted into its connector shell 16.
The portion in which the jacketed optical fibers 20 of the cable 14, two in this example, are mounted consists of two semi-cylindrical moldings 22 and 24 which are fitted together over the fibers to form a cylinder shown in phantom in Fig. 2.
The two fibers 20 extend through a casing 25 which contains a cable retention arrangement. The casing 25 has sideways exten~ed tails 26, 2~ which fit into slots 30 and 32 in the two moldings 22 and 24, respectively.
In Fig. 3 one molding of the two connector elements 10 is each shown half cut away to expose the arrangements associated with one optical fiber and its ferrule for each element. Each fiber 20 is terminated in a ferrule 34 which, as can be seen from Figs. 2 and 3, is shaped on its outside rather like a beer tumbler, the fiber going into the larger 112655~
rear end of the ferrule. The narrow front end preferably contains a lens arrangement of the expanded beam type (not shown).
The forward end portions of the two ferrules fit into respective tapered tunnels 36 in an insert 38 which has a larger rear end that slidably fits over the end of the cylinder formed by the two moldings 22 and 24. The forward end of the element 10 is completed by a bezel 40 of generally cylindrical form whose front end is sealed closed by a window 42 of glass or other suitable optically transparent material.
The bezel is slidably mounted over the insert 38 so that the bezel may be removed to clean the inside of the window 42 and to clean or replace the ferrules 34. The front ends of the ferrules are spaced a short distance behind the window to prevent scratching of the (optical fibers) lenses in the ferrules.
The glass window 42 protects the ends of the ferrules in the unmated condition, and can be readily cleaned if any dirt collects on it. In fact, it is usually desirable to clean such window before mating the two connector elements.
When the two elements are mated, as shown, it will be seen that the two windows are close to each other and parallel with each other. Further, the connector elements 10 are so con- -structed that when the two connector elements are mated, each ferrule 34 in one element is aligned with the corresponding errule in the other element. The presence of the expanded beam arrangements in the two ferrules take care of slight inaccuracies of alignment which may arise due to manufacturing tolerances.
The ferrules 34 are urged forward by coil springs 44 into the tapered tunnels 36 in the insert 38. The springs react against stops 46 provided by the internal configuration of the moldings 22, 24 (see Fig. 2). Note that the cylinder formed by the moldings is analogous to the insulator of an electrical connector and in fact is usually referred to as an insulator.
l~Z~551 Additional springs 48 exert a rearward thrust on the inside of the coupling nuts 12 which urge the mating connector elements together when mated, and also secure the dust covers in place when the latter are fitted.
The cables 14 pass through rear insulators 50 mounted over the rear portions of shells 16. O-rings 52 inside the rear insulators are compressed when the connector elements are fully assembled with the coupling nuts screwed together.
In addition to the O-rings 52, the be~els 40 carry O~rings 54 on their ~ront faces which are compressed together when the elements are mated. Thus the connector arrangement is fully sealed at all times against the ingress of moisture.
The provision of a chamber 56 within the cylinaer 22, 24 between the cable retention arrangement 25 and the ferrules 34 and springs 44 allows for the increased diameter of the cable sheath diameter, which could result from cutting the cables and splicing in new cables with ferrules, as may be needed when in service.
Much of the rest of the connector elements shown follows relatively conventional practice and so is not described in detail. ~owever, the coupling nuts 12 are hermaphroditic, as can be seen.
In the connector elements described above, the ferrules are of tapered shape. However, such connector elements can be readily made for use with fibers terminated by parallel-sided ferrules, which would have the merit of being simpler to make.
Fig. 4 shows a safety feature built into the fixed "half" of a connector assembly: it includes a shear ring 58 which forms the internal coupling between the shell 16 and coupling nut 12 of the fixed half. It will be seen that the shell 16 is secured to a ~Jall 60 (or equipment box).
Hence, if the connector when mated is subjected to an excessive pull, the tabs 62 on the shear ring 58 will break before any damage can occur to the optical fiber cable 14.
BACKGROUND OF THE INVENTION
The present invention relates to an optical fiber connector.
In the design of optical fiber connectors it is necessary for the mating connector elements to mate with the fibers in the two elements accurately aligned one with the other to minimize light transmission losses. An object of this invention is to provide a connector in which low loss mating is achieved. Prior art references which may be considered pertinent to the invention are U.S. Patents Nos. 3,455,625;
3,963,323; 3,984,174; 4,047,797; 4,088,390 and 4,184,742.
SUMMARY OF THE INVENTION
According to a principal aspect of the invention there is provided an optical fiber connector element comprising an insert body embodying a front end portion having a plurality of axially extending tunnel-like cavities therein. A ferrule is provided in each said cavity adapted to terminate an optical fiber. The forward ends of the ferrules all lie substantially in the same plane, and said plane is substantially normal to the longitudinal axes of the ferrules. A bezel is slidably mounted over the front end of the body. The bezel has an opening in its forward end the perimeter of which surrounds all of the ferrule cavities. An optically transparent window closes the opening in the bezel. The ends of the ferrules are 25 positioned close to but slightly behind the inner surface of the window. Means permit mating of the connector element with a like connector element so that their windows are close and parallel to each other with the ferrules in one of the elements optically aligned with the ferrules in the other element. The 30 bezel is removable from the insert body so that the window thereof and the ferrules may be cleaned.
BRIEF DESCRIPTION OF THE DRAWINGS
. _ Fig. 1 is a side view of two mated connector elements each of which embodies the invention;
Fig. 2 is an exploded view of parts of one connector element to which the invention may be applied;
~lZ65~1 Fig. 3 is a partial l~ngitudinal sectional view of two mated connector elements embodying the invention;
Fig. 4 is a partial sectional view showing one connector element secured to a wall; and Fig. 5 is an elevational view of a shear ring used in the connector element of Fig. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Fig. 1 shows two connector elements 10 of the present invention coupled together. Each connector element has an external ribbed coupling nut 12 of substantial proportion (compared with the size of the optical fiber cables 14 terminated to the connector elements). The connector sheil portions 16 of the elements 10 are of hermaphroditic form facilitating the engagement and coupling of the free connector elements in adverse conditions, e.g. in poor light. Each of the elements is provided with a dust cover 18 which, when the elements are not in use, are fitted over the front ends of the elements. ~hen two elements are mated, as shown in Fig. 1, their dust covers are fitted together, as shown, for convenience.
Fig. 2 shows the assembly of part of one connector element 10 before it is fitted into its connector shell 16.
The portion in which the jacketed optical fibers 20 of the cable 14, two in this example, are mounted consists of two semi-cylindrical moldings 22 and 24 which are fitted together over the fibers to form a cylinder shown in phantom in Fig. 2.
The two fibers 20 extend through a casing 25 which contains a cable retention arrangement. The casing 25 has sideways exten~ed tails 26, 2~ which fit into slots 30 and 32 in the two moldings 22 and 24, respectively.
In Fig. 3 one molding of the two connector elements 10 is each shown half cut away to expose the arrangements associated with one optical fiber and its ferrule for each element. Each fiber 20 is terminated in a ferrule 34 which, as can be seen from Figs. 2 and 3, is shaped on its outside rather like a beer tumbler, the fiber going into the larger 112655~
rear end of the ferrule. The narrow front end preferably contains a lens arrangement of the expanded beam type (not shown).
The forward end portions of the two ferrules fit into respective tapered tunnels 36 in an insert 38 which has a larger rear end that slidably fits over the end of the cylinder formed by the two moldings 22 and 24. The forward end of the element 10 is completed by a bezel 40 of generally cylindrical form whose front end is sealed closed by a window 42 of glass or other suitable optically transparent material.
The bezel is slidably mounted over the insert 38 so that the bezel may be removed to clean the inside of the window 42 and to clean or replace the ferrules 34. The front ends of the ferrules are spaced a short distance behind the window to prevent scratching of the (optical fibers) lenses in the ferrules.
The glass window 42 protects the ends of the ferrules in the unmated condition, and can be readily cleaned if any dirt collects on it. In fact, it is usually desirable to clean such window before mating the two connector elements.
When the two elements are mated, as shown, it will be seen that the two windows are close to each other and parallel with each other. Further, the connector elements 10 are so con- -structed that when the two connector elements are mated, each ferrule 34 in one element is aligned with the corresponding errule in the other element. The presence of the expanded beam arrangements in the two ferrules take care of slight inaccuracies of alignment which may arise due to manufacturing tolerances.
The ferrules 34 are urged forward by coil springs 44 into the tapered tunnels 36 in the insert 38. The springs react against stops 46 provided by the internal configuration of the moldings 22, 24 (see Fig. 2). Note that the cylinder formed by the moldings is analogous to the insulator of an electrical connector and in fact is usually referred to as an insulator.
l~Z~551 Additional springs 48 exert a rearward thrust on the inside of the coupling nuts 12 which urge the mating connector elements together when mated, and also secure the dust covers in place when the latter are fitted.
The cables 14 pass through rear insulators 50 mounted over the rear portions of shells 16. O-rings 52 inside the rear insulators are compressed when the connector elements are fully assembled with the coupling nuts screwed together.
In addition to the O-rings 52, the be~els 40 carry O~rings 54 on their ~ront faces which are compressed together when the elements are mated. Thus the connector arrangement is fully sealed at all times against the ingress of moisture.
The provision of a chamber 56 within the cylinaer 22, 24 between the cable retention arrangement 25 and the ferrules 34 and springs 44 allows for the increased diameter of the cable sheath diameter, which could result from cutting the cables and splicing in new cables with ferrules, as may be needed when in service.
Much of the rest of the connector elements shown follows relatively conventional practice and so is not described in detail. ~owever, the coupling nuts 12 are hermaphroditic, as can be seen.
In the connector elements described above, the ferrules are of tapered shape. However, such connector elements can be readily made for use with fibers terminated by parallel-sided ferrules, which would have the merit of being simpler to make.
Fig. 4 shows a safety feature built into the fixed "half" of a connector assembly: it includes a shear ring 58 which forms the internal coupling between the shell 16 and coupling nut 12 of the fixed half. It will be seen that the shell 16 is secured to a ~Jall 60 (or equipment box).
Hence, if the connector when mated is subjected to an excessive pull, the tabs 62 on the shear ring 58 will break before any damage can occur to the optical fiber cable 14.
Claims (3)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An optical fiber connector element comprising:
an insert body embodying a front end portion having a plurality of axially extending tunnel-like cavities therein;
a ferrule in each said cavity adapted to terminate an optical fiber;
the forward ends of said ferrules all lying substantially in the same plane, said plane being substantially normal to the longitudinal axes of said ferrules;
a bezel slidably mounted over said front end of said body, said bezel having an opening in its forward end the perimeter of which surrounds all of said ferrule cavities;
an optically transparent window closing said opening;
the ends of said ferrules being positioned close to but slightly behind the inner surface of said window;
means permitting mating of the connector element with a like connector element so that their windows are close and parallel to each other with the ferrules in one of said elements optically aligned with the ferrules in the other of the elements; and said bezel being removable from said body so that said window and said ferrules may be cleaned.
an insert body embodying a front end portion having a plurality of axially extending tunnel-like cavities therein;
a ferrule in each said cavity adapted to terminate an optical fiber;
the forward ends of said ferrules all lying substantially in the same plane, said plane being substantially normal to the longitudinal axes of said ferrules;
a bezel slidably mounted over said front end of said body, said bezel having an opening in its forward end the perimeter of which surrounds all of said ferrule cavities;
an optically transparent window closing said opening;
the ends of said ferrules being positioned close to but slightly behind the inner surface of said window;
means permitting mating of the connector element with a like connector element so that their windows are close and parallel to each other with the ferrules in one of said elements optically aligned with the ferrules in the other of the elements; and said bezel being removable from said body so that said window and said ferrules may be cleaned.
2. An optical fiber connector element as set forth in claim 1 wherein:
each of said ferrules and cavities is tapered; and spring means urges said ferrules forward.
each of said ferrules and cavities is tapered; and spring means urges said ferrules forward.
3. An optical fiber connector element as set forth in claim 1 wherein:
a molding extending rearwardly from said body, said molding comprising two hollow half-cylindrical portions fitted together to form a cylinder; and cable retention means entrapped within said cylinder.
a molding extending rearwardly from said body, said molding comprising two hollow half-cylindrical portions fitted together to form a cylinder; and cable retention means entrapped within said cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7915872A GB2048510B (en) | 1979-05-08 | 1979-05-08 | Hermaphroditic connector |
| GB7915872 | 1979-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1126551A true CA1126551A (en) | 1982-06-29 |
Family
ID=10505005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA351,057A Expired CA1126551A (en) | 1979-05-08 | 1980-05-01 | Fibre optic connector |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4448478A (en) |
| JP (1) | JPS55149912A (en) |
| AU (1) | AU539671B2 (en) |
| CA (1) | CA1126551A (en) |
| CH (1) | CH651398A5 (en) |
| DE (1) | DE3017262A1 (en) |
| FR (1) | FR2456334A1 (en) |
| GB (1) | GB2048510B (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3235174A1 (en) * | 1982-09-23 | 1984-03-29 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Plug-in connector for optical waveguides |
| JPS5960613U (en) * | 1982-10-15 | 1984-04-20 | 新和化成株式会社 | optical fiber connector |
| US4611887A (en) * | 1983-02-24 | 1986-09-16 | Amp Incorporated | Fiber optic connector assembly and wall outlet thereof |
| DE3307289A1 (en) * | 1983-03-02 | 1984-09-06 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Protective device for optical connector parts |
| US4639076A (en) * | 1983-11-14 | 1987-01-27 | Allied Corporation | Lens holder assembly for a fiber optic connector |
| FR2564986B1 (en) * | 1984-05-23 | 1986-10-10 | Radiall Ind | HERMAPHRODITE CONNECTOR ELEMENT FOR OPTICAL CABLE |
| US4687291A (en) * | 1984-06-08 | 1987-08-18 | Amp Incorporated | Duplex electro-fiber connector assembly |
| US4705352A (en) * | 1985-12-30 | 1987-11-10 | Amphenol Corporation | Fiber optic connector |
| US4756595A (en) * | 1986-04-21 | 1988-07-12 | Honeywell Inc. | Optical fiber connector for high pressure environments |
| US4812009A (en) * | 1987-06-30 | 1989-03-14 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical fiber connector |
| US4752111A (en) * | 1987-08-28 | 1988-06-21 | Amp Incorporated | Fiber optic connector |
| US5013124A (en) * | 1989-01-05 | 1991-05-07 | Codenoll Technology Corporation | Method and apparatus for connecting optical fibers |
| US5073045A (en) * | 1991-03-25 | 1991-12-17 | Amp Incorporated | Connector with improved clip connector half |
| US5295492A (en) * | 1992-10-09 | 1994-03-22 | C. R. Bard, Inc. | Device for connecting a guidewire to an extension guidewire |
| DE19738123C2 (en) * | 1997-09-01 | 2003-04-10 | Spinner Gmbh Elektrotech | Fiber Connectors |
| GB9908184D0 (en) * | 1999-04-09 | 1999-06-02 | Itt Mfg Enterprises Inc | Optical fibre connector |
| US6962445B2 (en) | 2003-09-08 | 2005-11-08 | Adc Telecommunications, Inc. | Ruggedized fiber optic connection |
| DE202004009156U1 (en) * | 2004-06-09 | 2005-10-27 | Keitz, Andreas Von | Emergency disconnect system for optical fibers has sleeve on end of first fiber with expanded extension engaging outside of cylindrical sleeve on end of second fiber |
| US7591595B2 (en) * | 2007-01-24 | 2009-09-22 | Adc Telelcommunications, Inc. | Hardened fiber optic adapter |
| US7572065B2 (en) | 2007-01-24 | 2009-08-11 | Adc Telecommunications, Inc. | Hardened fiber optic connector |
| US7744286B2 (en) | 2007-12-11 | 2010-06-29 | Adc Telecommunications, Inc. | Hardened fiber optic connection system with multiple configurations |
| US8814444B2 (en) * | 2008-05-13 | 2014-08-26 | Fujikura Ltd. | Optical connector |
| CN102156329B (en) | 2010-02-12 | 2013-05-22 | 泰科电子(上海)有限公司 | Optical fiber filter device and manufacturing method thereof |
| CN102269846B (en) * | 2010-06-04 | 2014-07-16 | 泰科电子(上海)有限公司 | Device for fixing at least two optical fiber connectors |
| US8684611B2 (en) * | 2011-02-22 | 2014-04-01 | Us Conec, Ltd. | Two-piece spring push for fiber optic connectors with large diameter fiber optic cables |
| US8714834B2 (en) * | 2011-11-30 | 2014-05-06 | The United States Of America As Represented By The Secretary Of The Navy | Multichannel optical data coupler |
| EP3014322B1 (en) | 2013-06-27 | 2018-09-19 | CommScope Connectivity Belgium BVBA | Fiber optic cable anchoring device for use with fiber optic connectors and methods of using the same |
| CN109839699B (en) * | 2019-03-14 | 2023-11-14 | 沈阳兴华航空电器有限责任公司 | High-reliability beam-expanding type optical fiber connector |
| CN110989091B (en) * | 2019-11-25 | 2022-03-11 | 中航光电科技股份有限公司 | Optical cable assembly and plug assembly thereof |
| CN113176636B (en) * | 2021-05-06 | 2023-08-11 | 四川天邑康和通信股份有限公司 | Universal type end face detection EC type optical fiber movable connector |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950075A (en) * | 1974-02-06 | 1976-04-13 | Corning Glass Works | Light source for optical waveguide bundle |
| FR2273289A1 (en) * | 1974-05-30 | 1975-12-26 | Fort Francois | Connector for optical fibres - has bored components with conical male and female coupling ends |
| US3963323A (en) * | 1974-12-23 | 1976-06-15 | International Telephone And Telegraph Corporation | Fiber optic connector with protective cable sleeves |
| US3984174A (en) * | 1975-04-28 | 1976-10-05 | International Telephone And Telegraph Corporation | Fiber optic connector with transparent cable sleeve |
| US4008948A (en) * | 1975-06-30 | 1977-02-22 | Northern Telecom Limited | Optical fibre connectors |
| CA1094369A (en) * | 1975-11-11 | 1981-01-27 | Peter K. Runge | Optical fiber connector and method of making |
| GB1504490A (en) * | 1975-11-28 | 1978-03-22 | Bowthorpe Hellerman Ltd | Optical fibre connector |
| FR2334969A1 (en) * | 1975-12-12 | 1977-07-08 | Cosneau Joel | Optical connector for fibre optics - uses planoconvex lenses applied to fibre ends to produce widened beam cross:section at join between fibres |
| US4290667A (en) * | 1976-02-03 | 1981-09-22 | International Standard Electric Corporation | Optical fibre terminations and connectors |
| US4101198A (en) * | 1976-06-21 | 1978-07-18 | Hewlett-Packard Company | Fiber optic connector with split ferrule assembly |
| GB2019028B (en) * | 1978-04-07 | 1982-07-14 | Plessey Co Ltd | Coupling optical fibres |
| DE2906104C3 (en) * | 1979-02-17 | 1981-11-26 | Harting Elektronik Gmbh, 4992 Espelkamp | Device for coupling two optical fibers |
-
1979
- 1979-05-08 GB GB7915872A patent/GB2048510B/en not_active Expired
-
1980
- 1980-05-01 CA CA351,057A patent/CA1126551A/en not_active Expired
- 1980-05-02 AU AU58019/80A patent/AU539671B2/en not_active Ceased
- 1980-05-06 DE DE19803017262 patent/DE3017262A1/en not_active Withdrawn
- 1980-05-08 JP JP6002480A patent/JPS55149912A/en active Pending
- 1980-05-08 FR FR8010241A patent/FR2456334A1/en not_active Withdrawn
- 1980-05-08 CH CH3588/80A patent/CH651398A5/en not_active IP Right Cessation
-
1981
- 1981-10-19 US US06/312,428 patent/US4448478A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4448478A (en) | 1984-05-15 |
| AU539671B2 (en) | 1984-10-11 |
| CH651398A5 (en) | 1985-09-13 |
| AU5801980A (en) | 1980-11-13 |
| FR2456334A1 (en) | 1980-12-05 |
| GB2048510B (en) | 1983-01-26 |
| JPS55149912A (en) | 1980-11-21 |
| DE3017262A1 (en) | 1980-11-20 |
| GB2048510A (en) | 1980-12-10 |
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