CA2003216A1 - Optical fiber splice tray - Google Patents
Optical fiber splice trayInfo
- Publication number
- CA2003216A1 CA2003216A1 CA002003216A CA2003216A CA2003216A1 CA 2003216 A1 CA2003216 A1 CA 2003216A1 CA 002003216 A CA002003216 A CA 002003216A CA 2003216 A CA2003216 A CA 2003216A CA 2003216 A1 CA2003216 A1 CA 2003216A1
- Authority
- CA
- Canada
- Prior art keywords
- optical fibers
- splice tray
- optical fiber
- base
- optical
- 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.)
- Abandoned
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 65
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000013011 mating Effects 0.000 claims description 2
- 229920000136 polysorbate Polymers 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000012856 packing Methods 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 24
- 210000002320 radius Anatomy 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4442—Cap coupling boxes
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Abstract An optical fiber splice tray capable of permitting the close packing of a plurality of optical fibers while fitting within a substantially standard pedestal closure is described. The splice tray further provides installer-ready access to the optical fibers while maintaining the optical fiber cables at a radius greater than the minimum bend radius of the optical fibers so as to minimize optical losses.
Description
` 2003216 OPTICAL FIBER SPLICE TRAY
Field of the Invention The invention relates to an optical fiber splice tray. More specifically, the invention relates to an optical fiber splice tray suitable for insertion into a compact optical fiber pedestal container. In particular, the inven-tion relates to a fiber optical splice tray capable of per-mitting easy access to demateable optical fibers contained -within an optical fi~er pedestal container. ~;
Background of the Invention As optical fibers move out of the laboratory and into widespread commercial use, organizers for multiple optical: ~
fiber splices are required to introduce individual homes into -,-the main transmission system. Unlike copper wires which are used in the vast majority of home hook-ups, optical fibers lose their effectiveness when bent in a radius smaller than the minimum bend radiu~. Although the minimum bend radius -- v varies from fiber to fiber, a mimimum bend radius for a given fiber must be taken into account when packaging it in asso-ciation with other fibers.
Optical fibers normally fit into a splice tray which carries a plurality of fibers. Raychem markets an optical fiber splice tray under the name Fosc 30/60~ closure system.
The splice tray permits a plurality of fibers to be organized on a plurality of splice trays and sealed against moisture and corrosioh within either a recoverable sleeve or through the use of a mechanical ring closure system. Although this system functions extremely well, the number of separable intercon-nected optical fibers it can accommodate is limited~
Still other systems and connectors are taught in U.S. ~;
Applications 721,527 filed April 9, 1985; U.S. 110,051 filed 0032~1~b October 13, 1987 and U.S. 178,115 filed April 6, 1988. Each of these Applications are incorporated herein by reference for all purposes.
Permanent optical fiber splices, i.e., welded or glued splices, are suitable for environments where the drop optical fiber is not apt to be disturbed or injured. In resi-dential or commercial applications where the drop optical fiber may be broken by excavation or otherwise damaged, the ~ ;
ability to reenter the splice closure and substitute an unda-maged optical fiber cable would be highly desirable. Another desirable feature would include a provision for the quick con-nection and disconnection of the drop optical fiber into the -system. It would also be desirable to be able to handle a plurality of fibers-in a compact arrangement capable of fitting within a closure having substantially similar dimen-sions to current closures already in commercial use for copper drop wires or optical fibers.
.,: ....
Typical demateable optical fiber connectors appart :
from fusion splices, require several inches of space on either side of the actual fiber coupling to avoid bçnding the fiber beyond the minimum bending radius. Standard closures of dimensions approximately equal to pedestal closures for copper wires, cannot arrange many connections along the axis perpen-dicular to the longitudinal axis of the closure and still maintain a minimum bend radius sufficient to preclude unaccep-tably high losses of light leaking out through the bent fiber.
Thus, it would be highly desirable to have a design which per-mits the optical fibers to be contained within a closure with " , . ; I I ~ , I !
a crosssection just slightly larger than the minimum bend radius of the fiber. It would be desirable to have an optical fiber layout that provides for easy access to the optical fiber connections and permits a neat organization of the fibers.
". : .: ~ .
',.' ', ;' :. ~ .- .. .
.. ~ . . .
-,; '.: . :'':.:
.. . ..
--- Z0032~6 Summary of the Invention The invention provides for the previous recited desirable features and other benefits which are readily apparent to the ordinary skilled artisan. More ~pecifically, the invention provides for plurality of demateable fibers within a housing which is substantially identical to housings for copper wires. The optical fiber splice tray of the inven- ~-tion permits the close arrangement of, and the easy access to, optical fibers with dematable connectors within a minimum/ --limited space such as found within standard pedestal closures is described. The splice tray further provides optical fiber organization and maintains optical fiber bend radii greater ~-then, but close to, the minimum bend radii of the type of ~ -optical fiber and signal frequency used so as to minimize transmission losses and maximize the effective use of space.
., :,,, Brief Description of the Figures Fig 1 illustrates an exploded view of a pede~tal clo~
sure including the optical fiber splice tray of the present invention.
- Fig 2 illustrates a top plan view of the optical fiber splice tray of the present invention. ;;
Detailed DescriPtion of the Invention The invention will be more clearly illustrated by referring to the attached Figures. Fig 1 illustrates the optical fiber closure system of the invention as 100. The closure system includes pedestal cap 10 capable of mating to a base member 20 and sealed thereto with a clamp and gasket system 30. Splice trays 40a and 40b hold a plurality of opti-cal fibers together or a virgin unspliced fiber for passing thFough the pedestal base member 10 which do not form part of ~:
. - .: :.
- ... : :
,.~, ,:~....
20032~6 the drop system. The optical fiber splice tray of the pre~ent invention 50 is hingeably attached to the base member 20, i.e., liftable as illustrated by the arrow, to provide more ready access to the spliced fibers. Alternatively, the tray 50 can be fixedly mounted, removeably attached, and the like.
The base member 20 can also iclude a plurality of splice tray~
50. The benefits of the splice tray will be more apparent by referring to Fig 2.
In Fig 2, the insoming optical fibers on splice tray 50 are illustrated as 400a to 400e. The incoming optical -- ;
fibers 400a through 400e bend, with an angle greater than the minimum bend radius within the tray, at an oblique angle to the longitudinal length of the tray. Preferably the angle is about a 45 angle with respect to a perpendicular bisecting -the longitudinal axis. Assuming the base portion 50a of the -tray 50 connected to the base member 20 forms a ~traight edge, then this base portion 50a and the longitudional edges 50b and SOc of the tray 50 form the x-y axis from which to measure the -angle of the connectors 56 and 58. The connectors 56 and 58 can be located at an angle which is less than or greater than about 45, i.e., on the order of from about 15 to about 85, preferably about 30 to about 60C although the most pre-ferable angle of about 45 ensures maximum close packing. The optical fiber connectors 56 and 58 are held at the desired angle by suitable positioning means for positioning the con-nectors such as clips, or passageways formed between the underside of the bridge member 52 and the base portion of the ~ -~
splice tray 50.
The ends of the fibers 400a through 400e contain ~ -demateable connectors 56a through 56e. The drop wire optical fiber~ 500a to 500e are connected through the connectors 58a -to 58e to the connectors 56a through 56e at an oblique angle, ~ '.' ' ''' '` '` '..
' ~ `' "`'` ~
': ~, ,. '. .: ::
-- 200;~ f3 as described, with the drop wire optical fibers 500a through -500e positioned to form substantially a figure-8 shape. In forming the figure-8 shape the optical fibers 500a throgh 500e bending around and over the optical connectors 56 and 58 by a bridge member 52.
The bridge member 52 provides a track for the outgoing drop optical fibers with all bends being compactly arranged not to be less than the minimum bend radius of the optical fiber. The optical fibers are held in place by flexible tabs, clamps, and the like, 54a to 54f. Access areas 60a and 60b permit the positioning of the installers fingeers on the opposing sides and/or portions, of the connectors 56a to 56e and 58a to 58e, respectively, thus allowing the installer to connect or disconnect 56a through 56e from 58a ;~
through 58e. Preferably the areas 60a and 60b are voids i.e., cut-outs, in the base 50.
The oblique angle of the fibers relative to the longitudinal axis permits a substantially higher packing of optical fibers then mounting them perpendicular to the longi-tudinal axis. In addition, the angle permits a narrower housing to be utilized. The bridge member 52 organizes the fibers and ensures that the optical fibers will not be pinched by overlapping the edges of the tray, i.e., impede access to the cut-outs 60a and 60b. Preferably the bridge member is ~U"
shape, i.e., the member 52 has guiding rails to retain the fibers within the bridge member. Although any containing shape is suitable.
; Having de~cr!ibedlthe preferred embodiments, obvious modifications are contemplated to be within the scope of the invention. For example, the trunk fibers 400a to 400e could enter through the bridge member 52 and the drop wires 500a to ~;
500e could exit where the presently positioned entrance fibers .'' ~':.'~`'''' ','' Z0032~;
wires 400a to 400e are located. Finally, the bridge member 52 can go under the optical connectors and the figure-8 shape can be square or 9-shaped if the incoming and outgoing fibers are parallel and the bends are sized not to be sharper than the minimum bend radius of the optical fiber. The tray can al~o : :
be used for copper wires and the like. ~ ,.
. .: .' "; :',: ', : , ,, ': ' ~
"' " ,::
,- :,., : . ::, : . .''., ~ -: .
:.: :' ' ' ''''::
:, . ~
" ' ' ' ,.', ~' ' ,'~, : . ,", '': " ~ .:
; ',: :. ~ . . :
'~ . . :, ~
' ` , ~ ' ": ' ' ', : ,' ':
'' `~ " `', ' ~ '
Field of the Invention The invention relates to an optical fiber splice tray. More specifically, the invention relates to an optical fiber splice tray suitable for insertion into a compact optical fiber pedestal container. In particular, the inven-tion relates to a fiber optical splice tray capable of per-mitting easy access to demateable optical fibers contained -within an optical fi~er pedestal container. ~;
Background of the Invention As optical fibers move out of the laboratory and into widespread commercial use, organizers for multiple optical: ~
fiber splices are required to introduce individual homes into -,-the main transmission system. Unlike copper wires which are used in the vast majority of home hook-ups, optical fibers lose their effectiveness when bent in a radius smaller than the minimum bend radiu~. Although the minimum bend radius -- v varies from fiber to fiber, a mimimum bend radius for a given fiber must be taken into account when packaging it in asso-ciation with other fibers.
Optical fibers normally fit into a splice tray which carries a plurality of fibers. Raychem markets an optical fiber splice tray under the name Fosc 30/60~ closure system.
The splice tray permits a plurality of fibers to be organized on a plurality of splice trays and sealed against moisture and corrosioh within either a recoverable sleeve or through the use of a mechanical ring closure system. Although this system functions extremely well, the number of separable intercon-nected optical fibers it can accommodate is limited~
Still other systems and connectors are taught in U.S. ~;
Applications 721,527 filed April 9, 1985; U.S. 110,051 filed 0032~1~b October 13, 1987 and U.S. 178,115 filed April 6, 1988. Each of these Applications are incorporated herein by reference for all purposes.
Permanent optical fiber splices, i.e., welded or glued splices, are suitable for environments where the drop optical fiber is not apt to be disturbed or injured. In resi-dential or commercial applications where the drop optical fiber may be broken by excavation or otherwise damaged, the ~ ;
ability to reenter the splice closure and substitute an unda-maged optical fiber cable would be highly desirable. Another desirable feature would include a provision for the quick con-nection and disconnection of the drop optical fiber into the -system. It would also be desirable to be able to handle a plurality of fibers-in a compact arrangement capable of fitting within a closure having substantially similar dimen-sions to current closures already in commercial use for copper drop wires or optical fibers.
.,: ....
Typical demateable optical fiber connectors appart :
from fusion splices, require several inches of space on either side of the actual fiber coupling to avoid bçnding the fiber beyond the minimum bending radius. Standard closures of dimensions approximately equal to pedestal closures for copper wires, cannot arrange many connections along the axis perpen-dicular to the longitudinal axis of the closure and still maintain a minimum bend radius sufficient to preclude unaccep-tably high losses of light leaking out through the bent fiber.
Thus, it would be highly desirable to have a design which per-mits the optical fibers to be contained within a closure with " , . ; I I ~ , I !
a crosssection just slightly larger than the minimum bend radius of the fiber. It would be desirable to have an optical fiber layout that provides for easy access to the optical fiber connections and permits a neat organization of the fibers.
". : .: ~ .
',.' ', ;' :. ~ .- .. .
.. ~ . . .
-,; '.: . :'':.:
.. . ..
--- Z0032~6 Summary of the Invention The invention provides for the previous recited desirable features and other benefits which are readily apparent to the ordinary skilled artisan. More ~pecifically, the invention provides for plurality of demateable fibers within a housing which is substantially identical to housings for copper wires. The optical fiber splice tray of the inven- ~-tion permits the close arrangement of, and the easy access to, optical fibers with dematable connectors within a minimum/ --limited space such as found within standard pedestal closures is described. The splice tray further provides optical fiber organization and maintains optical fiber bend radii greater ~-then, but close to, the minimum bend radii of the type of ~ -optical fiber and signal frequency used so as to minimize transmission losses and maximize the effective use of space.
., :,,, Brief Description of the Figures Fig 1 illustrates an exploded view of a pede~tal clo~
sure including the optical fiber splice tray of the present invention.
- Fig 2 illustrates a top plan view of the optical fiber splice tray of the present invention. ;;
Detailed DescriPtion of the Invention The invention will be more clearly illustrated by referring to the attached Figures. Fig 1 illustrates the optical fiber closure system of the invention as 100. The closure system includes pedestal cap 10 capable of mating to a base member 20 and sealed thereto with a clamp and gasket system 30. Splice trays 40a and 40b hold a plurality of opti-cal fibers together or a virgin unspliced fiber for passing thFough the pedestal base member 10 which do not form part of ~:
. - .: :.
- ... : :
,.~, ,:~....
20032~6 the drop system. The optical fiber splice tray of the pre~ent invention 50 is hingeably attached to the base member 20, i.e., liftable as illustrated by the arrow, to provide more ready access to the spliced fibers. Alternatively, the tray 50 can be fixedly mounted, removeably attached, and the like.
The base member 20 can also iclude a plurality of splice tray~
50. The benefits of the splice tray will be more apparent by referring to Fig 2.
In Fig 2, the insoming optical fibers on splice tray 50 are illustrated as 400a to 400e. The incoming optical -- ;
fibers 400a through 400e bend, with an angle greater than the minimum bend radius within the tray, at an oblique angle to the longitudinal length of the tray. Preferably the angle is about a 45 angle with respect to a perpendicular bisecting -the longitudinal axis. Assuming the base portion 50a of the -tray 50 connected to the base member 20 forms a ~traight edge, then this base portion 50a and the longitudional edges 50b and SOc of the tray 50 form the x-y axis from which to measure the -angle of the connectors 56 and 58. The connectors 56 and 58 can be located at an angle which is less than or greater than about 45, i.e., on the order of from about 15 to about 85, preferably about 30 to about 60C although the most pre-ferable angle of about 45 ensures maximum close packing. The optical fiber connectors 56 and 58 are held at the desired angle by suitable positioning means for positioning the con-nectors such as clips, or passageways formed between the underside of the bridge member 52 and the base portion of the ~ -~
splice tray 50.
The ends of the fibers 400a through 400e contain ~ -demateable connectors 56a through 56e. The drop wire optical fiber~ 500a to 500e are connected through the connectors 58a -to 58e to the connectors 56a through 56e at an oblique angle, ~ '.' ' ''' '` '` '..
' ~ `' "`'` ~
': ~, ,. '. .: ::
-- 200;~ f3 as described, with the drop wire optical fibers 500a through -500e positioned to form substantially a figure-8 shape. In forming the figure-8 shape the optical fibers 500a throgh 500e bending around and over the optical connectors 56 and 58 by a bridge member 52.
The bridge member 52 provides a track for the outgoing drop optical fibers with all bends being compactly arranged not to be less than the minimum bend radius of the optical fiber. The optical fibers are held in place by flexible tabs, clamps, and the like, 54a to 54f. Access areas 60a and 60b permit the positioning of the installers fingeers on the opposing sides and/or portions, of the connectors 56a to 56e and 58a to 58e, respectively, thus allowing the installer to connect or disconnect 56a through 56e from 58a ;~
through 58e. Preferably the areas 60a and 60b are voids i.e., cut-outs, in the base 50.
The oblique angle of the fibers relative to the longitudinal axis permits a substantially higher packing of optical fibers then mounting them perpendicular to the longi-tudinal axis. In addition, the angle permits a narrower housing to be utilized. The bridge member 52 organizes the fibers and ensures that the optical fibers will not be pinched by overlapping the edges of the tray, i.e., impede access to the cut-outs 60a and 60b. Preferably the bridge member is ~U"
shape, i.e., the member 52 has guiding rails to retain the fibers within the bridge member. Although any containing shape is suitable.
; Having de~cr!ibedlthe preferred embodiments, obvious modifications are contemplated to be within the scope of the invention. For example, the trunk fibers 400a to 400e could enter through the bridge member 52 and the drop wires 500a to ~;
500e could exit where the presently positioned entrance fibers .'' ~':.'~`'''' ','' Z0032~;
wires 400a to 400e are located. Finally, the bridge member 52 can go under the optical connectors and the figure-8 shape can be square or 9-shaped if the incoming and outgoing fibers are parallel and the bends are sized not to be sharper than the minimum bend radius of the optical fiber. The tray can al~o : :
be used for copper wires and the like. ~ ,.
. .: .' "; :',: ', : , ,, ': ' ~
"' " ,::
,- :,., : . ::, : . .''., ~ -: .
:.: :' ' ' ''''::
:, . ~
" ' ' ' ,.', ~' ' ,'~, : . ,", '': " ~ .:
; ',: :. ~ . . :
'~ . . :, ~
' ` , ~ ' ": ' ' ', : ,' ':
'' `~ " `', ' ~ '
Claims (10)
1. An optical fiber splice tray comprising:
a base;
at least one bridge member substantially centrally located and positioned in a region of the base to provide access to optical fibers splices contained between the bridge member and the base; and positioning means for positioning optical fiber con-nectors at an oblique angle relative to the longitu-dinal axis of the optical fiber splice tray and between the base and the bridge member.
a base;
at least one bridge member substantially centrally located and positioned in a region of the base to provide access to optical fibers splices contained between the bridge member and the base; and positioning means for positioning optical fiber con-nectors at an oblique angle relative to the longitu-dinal axis of the optical fiber splice tray and between the base and the bridge member.
2. The splice tray according to claim 1 wherein the base further provides for access ports to readily permit the connecting/disconnecting of the optical fibers.
3. The splice tray according to claim 2 wherein the incoming and exiting optical fibers are configured to exhibit figure-8 pattern with the optical fibers being spaced apart and substantially parallel at an end of the base.
4. The splice tray according to claim 3 wherein the tray is hingably mounted to a base support, said base sup-port capable of mating to a pedestal cap with a mechanical or recoverable seal between the cap and the base support.
5. The splice tray according to claim 4 wherein the optical fiber connectors are located at about 45°
angle relative to the longitudinal axis of the splice tray.
angle relative to the longitudinal axis of the splice tray.
6. The splice tray according to claim 2 wherein incoming and exiting optical fibers are parallel and adjacent at the base member in the shape of a figure 9.
7. The splice tray according to claim 1 wherein the optical fibers are located at an angle that is be-tween about 15° to about 85° relative to the longitu-dinal axis of the splice tray.
8. The apparatus according to claim 7 wherein the clo-sure contains a plurality of optical fibers splice trays.
9. A method of organizing optical fibers within a splice tray comprising:
positioning optical fiber connectors on a tray at an oblique angle relative to the longitudinal axis of the tray;
connecting optical fibers thereto; and routing the connected optical fibers in a figure-8 pattern around the connected optical fibers.
positioning optical fiber connectors on a tray at an oblique angle relative to the longitudinal axis of the tray;
connecting optical fibers thereto; and routing the connected optical fibers in a figure-8 pattern around the connected optical fibers.
10. That method according to claim 8 further comprising accessing optical fiber connectors above and below the optical fiber connectors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27260788A | 1988-11-17 | 1988-11-17 | |
| US07/272,607 | 1988-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2003216A1 true CA2003216A1 (en) | 1990-05-17 |
Family
ID=23040513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002003216A Abandoned CA2003216A1 (en) | 1988-11-17 | 1989-11-17 | Optical fiber splice tray |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR900702393A (en) |
| AU (1) | AU4648789A (en) |
| CA (1) | CA2003216A1 (en) |
| WO (1) | WO1990005930A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0725938A1 (en) * | 1993-09-10 | 1996-08-14 | BRITISH TELECOMMUNICATIONS public limited company | Break-out tray |
| ATE185903T1 (en) * | 1993-09-10 | 1999-11-15 | British Telecomm | DISTRIBUTION RACK |
| FR2743899B1 (en) * | 1996-01-18 | 1998-02-13 | Noane Georges Le | DEVICE FOR ORGANIZING FIBER OPTIC CONNECTIONS |
| WO2024072990A1 (en) * | 2022-09-29 | 2024-04-04 | viaPhoton, Inc. | Miniature network interface device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3706518A1 (en) * | 1987-02-28 | 1988-09-08 | Philips Patentverwaltung | Method and arrangement for winding by means of a winding cassette the excess lengths of optical waveguides which are connected to one another |
| US4848870A (en) * | 1988-04-06 | 1989-07-18 | Raychem Corporation | Optical fiber jaw connector |
-
1989
- 1989-11-17 WO PCT/US1989/005153 patent/WO1990005930A1/en unknown
- 1989-11-17 AU AU46487/89A patent/AU4648789A/en not_active Abandoned
- 1989-11-17 KR KR1019900701534A patent/KR900702393A/en not_active Application Discontinuation
- 1989-11-17 CA CA002003216A patent/CA2003216A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU4648789A (en) | 1990-06-12 |
| WO1990005930A1 (en) | 1990-05-31 |
| KR900702393A (en) | 1990-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |