WO2008000149A1 - Ceramic sleeve - Google Patents
Ceramic sleeve Download PDFInfo
- Publication number
- WO2008000149A1 WO2008000149A1 PCT/CN2007/001922 CN2007001922W WO2008000149A1 WO 2008000149 A1 WO2008000149 A1 WO 2008000149A1 CN 2007001922 W CN2007001922 W CN 2007001922W WO 2008000149 A1 WO2008000149 A1 WO 2008000149A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- sleeve
- ceramic sleeve
- ceramic
- present
- 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.)
- Ceased
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
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
- G02B6/3877—Split sleeves
Definitions
- the present invention relates to an opened ceramic sleeve used with coaxial inserting-extracting type optical devices in the field of optical communication; and more particularly, the present invention relates to a ceramic sleeve having openings at both ends of the sleeve.
- an opened ceramic sleeve used with coaxial inserting-extracting optical devices in the field of optical communication typically has a through opening which runs through the wall of the ceramic sleeve axially.
- a conventional opened ceramic sleeve comprises a sleeve 11 , and a through opening 22 which runs through the wall of the ceramic sleeve 11 axially , so that in use the coaxality can be guaranteed by the elasticity of the opened sleeve.
- this opened ceramic sleeve has disadvantage in use as the following: when using the ceramic sleeve 11 , the optical fiber inserts are inserted from two ends sequentially; when one end of the sleeve is firstly inserted with an insert, the ceramic sleeve 11 is deformed. Therefore, when the other end of the sleeve is inserted with another insert, it is difficult to guarantee the design performance of the deformed sleeve 11.
- the object of this invention is to provide a ceramic sleeve having openings formed separately at two ends thereof.
- the ceramic sleeve of the present i ' nvention can efficiently solve the problem that the design performance of the sleeve changes when the two ends of the sleeve are inserted with optical fiber inserts in turn.
- the present invention provides a ceramic sleeve, wherein a first opening is disposed on one end of the ceramic sleeve and extends toward the other end thereof; a second opening is disposed on the other end of the sleeve and extends toward the one end thereof; the first opening and the second opening have identical configurations and are staggered from each other on the circumference of the sleeve; the axial length of each of the first opening and the second opening is less than the length of the sleeve.
- the first opening and the second opening extend in the axial direction of the ceramic sleeve.
- a circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is in the range of about 10°- about 180 °.
- the circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is in the range of about 90 ° - about 180 °.
- the circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is about 180 °.
- the axial length of each of the first opening and the second opening is about 1/3- about 2/3 of the length of the ceramic sleeve.
- the axial length of each of the first opening and the second opening is about 1/2- about 2/3 of the length of the ceramic sleeve. According to another embodiment of the present invention, the axial length of each of the first opening and the second opening is about 1/2 of the length of the ceramic sleeve.
- the axial length of each of the first opening and the second opening is about 2/3 of the length of the ceramic sleeve.
- Figure 1 is a left view of the conventional ceramic sleeve having a through opening formed over the length of the sleeve;
- Figure 2 is a front view of the conventional ceramic sleeve having a through opening formed over the length of the sleeve;
- Figure 3 is a right view of the conventional ceramic sleeve having a through opening formed over the length of the sleeve;
- Figure 4 is a left view of the ceramic sleeve according to one embodiment of the present invention.
- Figure 4 is a left view of the ceramic sleeve according to one embodiment of the present invention.
- Figure 5 is a front view of the ceramic sleeve according to one embodiment of the present invention
- Figure 6 is a right view of the ceramic sleeve according to one embodiment of the present invention.
- Figure 7 is a perspective view of the ceramic sleeve according to one embodiment of the present invention.
- Figures 4-7 show the configuration of the ceramic sleeve according to one embodiment of the present invention.
- the present invention provides a ceramic sleeve 1. At two ends of the sleeve, there are formed a first opening 2 and a second opening 3 respectively. The axial length of each of the first opening and the second opening is less than the total length of the sleeve. Each of the first opening 2 and the second opening 3 extends from one end of the sleeve toward the other end of the sleeve.
- the first opening 2 and the second opening 3 of the ceramic sleeve according to the present invention are staggered from each other on the circumference of the sleeve.
- the opening on each end of the sleeve 1 extends toward the other end of the sleeve in the axial direction of the sleeve.
- the configurations of the first opening 2 and the second opening 3 are the same. Further, the first opening 2 and the second opening 3 are staggered from each other on the circumference of the sleeve by a circumferential angle of about 180° . The axial ends of the first opening 2 and the second opening 3 are staggered from each other in the axial direction. The axial lengths of the first opening 2 and the second opening 3 are about 2/3 of the total length of the sleeve 1.
- FIG. 4-7 shows only an exemplary configuration of the ceramic sleeve according to the present invention.
- the openings at two ends of the ceramic sleeve may not extend in the axial direction of the sleeve. Instead, they may extend along a curved line on the circumference of the sleeve as long as the openings at two ends of the sleeve are staggered from each other on the circumference of the sleeve.
- first opening 2 and the second opening 3 are staggered from each other on the circumference of the sleeve by the circumferential angle about 180 ° , they may staggered by any circumferential angle more than zero.
- the circumferential angle by which the first opening and the second opening are staggered from each other may be in the range of about 10 ° - about 180 ° .
- the first opening 2 and the second opening 3 may be staggered from each other on the circumference of the sleeve by a circumferential angle in the range of about 90° - about 180 ° .
- the axial ends of the first opening 2 and the second opening 3 may align with each other in the middle of the sleeve rather than staggered in the axial direction. That is, the lengths of each of the first opening 2 and the second opening 3 are about 1/2 of the total length of the ceramic sleeve 1. Also alternatively, the axial ends of the first opening 2 and the second opening 3 may be disposed at two sides of the middle point of the sleeve 1. That is, the lengths of each of the first opening 2 and the second opening 3 are less than about 1/2 of the total length of the ceramic sleeve 1.
- the lengths of each of the first opening 2 and the second opening 3 are in the range of about 1/3- about 2/3 of the total length of the ceramic sleeve 1. More preferably, the lengths of each of the first opening 2 and the second opening 3 are in the range of about 1/2- about 2/3 of the total length of the ceramic sleeve 1.
- the opened ceramic sleeve 1 has a certain degree of tension due to the openings and can guarantee the coaxality of the optical fiber inserts inserted in the ceramic sleeve 1.
- the present invention can guarantee the coaxality of the optical fiber inserts when both ends of the sleeve are inserted with the optical fiber inserts.
- the portion of the ceramic sleeve at the first opening 2 is deformed to provide a certain compression force to the optical fiber so as to guarantee coaxality.
- the portion of the ceramic sleeve at the second opening 3 will not be deformed. Therefore, when another optical fiber insert is inserted from the second opening 3, the portion of the ceramic sleeve at the second opening 3 can still provide a suitable compression force to the optical fiber insert to guarantee coaxality, and vice versa.
- the ceramic sleeve there are two openings at two ends of the ceramic sleeve, which can guarantee the coaxality of the optical fiber inserts inserted from two ends of the sleeve in such a way that the insertion of the fiber insert from one end will not cause deformation or cause less deformation of the other end of the sleeve.
- the two openings have identical configuration, which makes the deformations at two ends of the sleeve are equal and gives identical force to the optical fiber inserts at two ends.
- the ceramic sleeve according to the present invention can be manufactured by the process for manufacturing the conventional ceramic sleeve. Therefore, the manufacturing cost will not be additionally increased while the good performance can be ensured.
- the present invention provides a ceramic sleeve opened at two ends separately, which can reduce the deformation caused at the other end of the sleeve when an insert is inserted from one end of the sleeve, such that the interference between the two ends of the sleeve can be avoided when the fiber inserts are inserted from two ends of the sleeve respectively. Therefore, the ceramic sleeve of the present invention has a high cost performance and has a wide prospect of application.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A ceramic sleeve (1) comprises a first opening (2) disposed on one end of the ceramic sleeve and extending toward the other end thereof, a second opening (3) disposed on the other end of the sleeve and extending toward the one end thereof. The first opening and the second opening have identical configurations and are staggered from each other on the circumference of the sleeve. The axial length of each of the first opening and the second opening is less than the length of the sleeve (1).
Description
CERAMIC SLEEVE
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to an opened ceramic sleeve used with coaxial inserting-extracting type optical devices in the field of optical communication; and more particularly, the present invention relates to a ceramic sleeve having openings at both ends of the sleeve.
Brief Description of the related arts
Currently, an opened ceramic sleeve used with coaxial inserting-extracting optical devices in the field of optical communication typically has a through opening which runs through the wall of the ceramic sleeve axially. As shown in figures 1 , 2 and 3, a conventional opened ceramic sleeve comprises a sleeve 11 , and a through opening 22 which runs through the wall of the ceramic sleeve 11 axially , so that in use the coaxality can be guaranteed by the elasticity of the opened sleeve.
However, this opened ceramic sleeve has disadvantage in use as the following: when using the ceramic sleeve 11 , the optical fiber inserts are inserted from two ends sequentially; when one end of the sleeve is firstly inserted with an insert, the ceramic sleeve 11 is deformed. Therefore, when the other end of the sleeve is inserted with another insert, it is difficult to guarantee the design performance of the deformed sleeve 11.
SUMMARY OF THE INVENTION
In order to overcome the above disadvantage of the conventional ceramic sleeve, the object of this invention is to provide a ceramic sleeve having openings formed separately at two ends thereof. The ceramic sleeve of the present i 'nvention can efficiently solve the problem that the design performance of the sleeve changes when the two ends of the sleeve are inserted with optical fiber inserts in turn.
To achieve the above object, the present invention provides a ceramic sleeve, wherein a first opening is disposed on one end of the ceramic sleeve and extends toward the other end thereof; a second opening is disposed on the other end of the sleeve and extends toward the one end thereof; the first opening and the second opening have identical configurations and are staggered from each other on the circumference of the sleeve; the axial length of each of the first opening and the second opening is less than the length of the sleeve.
According to one embodiment of the present invention, the first opening and the second opening extend in the axial direction of the ceramic sleeve. According to one embodiment of the present invention, a circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is in the range of about 10°- about 180 °.
According to one embodiment of the present invention, the circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is in the range of about 90 ° - about 180 °.
According to one embodiment of the present invention, the
circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is about 180 °.
According to another embodiment of the present invention, the axial length of each of the first opening and the second opening is about 1/3- about 2/3 of the length of the ceramic sleeve.
According to another embodiment of the present invention, the axial length of each of the first opening and the second opening is about 1/2- about 2/3 of the length of the ceramic sleeve. According to another embodiment of the present invention, the axial length of each of the first opening and the second opening is about 1/2 of the length of the ceramic sleeve.
According to another embodiment of the present invention, the axial length of each of the first opening and the second opening is about 2/3 of the length of the ceramic sleeve.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a left view of the conventional ceramic sleeve having a through opening formed over the length of the sleeve; Figure 2 is a front view of the conventional ceramic sleeve having a through opening formed over the length of the sleeve;
Figure 3 is a right view of the conventional ceramic sleeve having a through opening formed over the length of the sleeve;
Figure 4 is a left view of the ceramic sleeve according to one embodiment of the present invention; Figure 4 is a left view of the ceramic sleeve according to one embodiment of the present invention;
Figure 5 is a front view of the ceramic sleeve according to one embodiment of the present invention;
Figure 6 is a right view of the ceramic sleeve according to one embodiment of the present invention; and
Figure 7 is a perspective view of the ceramic sleeve according to one embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Further description of the details and embodiments of the present invention will be made in conjunction with the accompanying drawings. The description of the present invention with reference to the drawings is intended to explain the concept of the invention and should not be interpreted as limitation of the protection scope of the present invention.
Figures 4-7 show the configuration of the ceramic sleeve according to one embodiment of the present invention. As shown in figures 4-7, the present invention provides a ceramic sleeve 1. At two ends of the sleeve, there are formed a first opening 2 and a second opening 3 respectively. The axial length of each of the first opening and the second opening is less than the total length of the sleeve. Each of the first opening 2 and the second opening 3 extends from one end of the sleeve toward the other end of the sleeve. In particular, unlike the conventional ceramic sleeve, the first opening 2 and the second opening 3 of the ceramic sleeve according to the present invention are staggered from each other on the circumference of the sleeve. In the present embodiment, the opening on each end of the sleeve 1 extends toward the other end of the sleeve in the axial direction of the sleeve. The configurations of the first opening 2 and the second opening 3 are the same. Further, the first opening 2 and the second opening 3 are staggered from each other on the circumference
of the sleeve by a circumferential angle of about 180° . The axial ends of the first opening 2 and the second opening 3 are staggered from each other in the axial direction. The axial lengths of the first opening 2 and the second opening 3 are about 2/3 of the total length of the sleeve 1.
Figures 4-7 shows only an exemplary configuration of the ceramic sleeve according to the present invention. As can be understood by those skilled in the art, various modifications can be made on the illustrated configuration. For example, the openings at two ends of the ceramic sleeve may not extend in the axial direction of the sleeve. Instead, they may extend along a curved line on the circumference of the sleeve as long as the openings at two ends of the sleeve are staggered from each other on the circumference of the sleeve. Further, although it is preferable that the first opening 2 and the second opening 3 are staggered from each other on the circumference of the sleeve by the circumferential angle about 180 ° , they may staggered by any circumferential angle more than zero. For example, the circumferential angle by which the first opening and the second opening are staggered from each other may be in the range of about 10 ° - about 180 ° . Alternatively, the first opening 2 and the second opening 3 may be staggered from each other on the circumference of the sleeve by a circumferential angle in the range of about 90° - about 180 ° . Alternatively, unlike the embodiment shown in figures 4-7, the axial ends of the first opening 2 and the second opening 3 may align with each other in the middle of the sleeve rather than staggered in the axial direction. That is, the lengths of each of the first opening 2 and
the second opening 3 are about 1/2 of the total length of the ceramic sleeve 1. Also alternatively, the axial ends of the first opening 2 and the second opening 3 may be disposed at two sides of the middle point of the sleeve 1. That is, the lengths of each of the first opening 2 and the second opening 3 are less than about 1/2 of the total length of the ceramic sleeve 1. Preferably, the lengths of each of the first opening 2 and the second opening 3 are in the range of about 1/3- about 2/3 of the total length of the ceramic sleeve 1. More preferably, the lengths of each of the first opening 2 and the second opening 3 are in the range of about 1/2- about 2/3 of the total length of the ceramic sleeve 1.
The above modifications are all fall within the scope of the present invention.
The operation principle of the present invention is as below:
The opened ceramic sleeve 1 has a certain degree of tension due to the openings and can guarantee the coaxality of the optical fiber inserts inserted in the ceramic sleeve 1. In particular, the present invention can guarantee the coaxality of the optical fiber inserts when both ends of the sleeve are inserted with the optical fiber inserts.
Specifically, when an optical fiber insert is inserted from the first opening 2, the portion of the ceramic sleeve at the first opening 2 is deformed to provide a certain compression force to the optical fiber so as to guarantee coaxality. At the same time, the portion of the ceramic sleeve at the second opening 3 will not be deformed. Therefore, when another optical fiber insert is inserted from the second opening 3, the portion of the ceramic sleeve at the second opening 3 can still provide a suitable compression force to the optical fiber insert to guarantee coaxality, and vice versa.
In the present invention, there are two openings at two ends of
the ceramic sleeve, which can guarantee the coaxality of the optical fiber inserts inserted from two ends of the sleeve in such a way that the insertion of the fiber insert from one end will not cause deformation or cause less deformation of the other end of the sleeve. In addition, the two openings have identical configuration, which makes the deformations at two ends of the sleeve are equal and gives identical force to the optical fiber inserts at two ends.
The ceramic sleeve according to the present invention can be manufactured by the process for manufacturing the conventional ceramic sleeve. Therefore, the manufacturing cost will not be additionally increased while the good performance can be ensured.
In summary, the present invention provides a ceramic sleeve opened at two ends separately, which can reduce the deformation caused at the other end of the sleeve when an insert is inserted from one end of the sleeve, such that the interference between the two ends of the sleeve can be avoided when the fiber inserts are inserted from two ends of the sleeve respectively. Therefore, the ceramic sleeve of the present invention has a high cost performance and has a wide prospect of application. Although the general inventive concept of the present invention has been described in detail by the above embodiments with reference to the accompanying drawings, those skilled in the art will be appreciated that various modifications, variations and changes can be made on the above embodiments.
Claims
1. A ceramic sleeve (1 ), wherein a first opening (2) is disposed on one end of the ceramic sleeve and extends toward the other end thereof; a second opening (3) is disposed on the other end of the sleeve and extends toward the one end thereof; the first opening and the second opening have identical configurations and are staggered from each other on the circumference of the sleeve; the axial length of each of the first opening and the second opening is less than the length of the sleeve (1 ).
2. The ceramic sleeve according to claim 1 , wherein the first opening (2) and the second opening (3) extend in the axial direction of the ceramic sleeve (1).
3. The ceramic sleeve according to claim 2, wherein a circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is in the range of about 10 ° - about 180 °.
4. The ceramic sleeve according to claim 3, wherein the circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is in the range of about 90 ° - about 180 °.
5. The ceramic sleeve according to claim 4, wherein the circumferential angle by which the first opening and the second opening are staggered from each other on the circumference of the sleeve is about 180 °.
6. The ceramic sleeve according to claim 1 or 2 wherein an axial length of each of the first opening and the second opening is about 1/3- about 2/3 of the length of the ceramic sleeve.
7. The ceramic sleeve according to claim 6 wherein the axial length of each of the first opening and the second opening is about 1/2- about 2/3 of the length of the ceramic sleeve.
8. The ceramic sleeve according to claim 7 wherein the axial length of each of the first opening and the second opening is about 1/2 of the length of the ceramic sleeve.
9. The ceramic sleeve according to claim 7 wherein the axial length of each of the first opening and the second opening is about 2/3 of the length of the ceramic sleeve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620097361.3 | 2006-06-22 | ||
| CNU2006200973613U CN2921864Y (en) | 2006-06-22 | 2006-06-22 | Ceramic sleeve with separate opening at two ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008000149A1 true WO2008000149A1 (en) | 2008-01-03 |
Family
ID=38254344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2007/001922 Ceased WO2008000149A1 (en) | 2006-06-22 | 2007-06-20 | Ceramic sleeve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN2921864Y (en) |
| WO (1) | WO2008000149A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636840B (en) * | 2011-02-12 | 2014-07-23 | 莱特尔科技（深圳）有限公司 | Optical fiber powder combiner and laser processing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03130706A (en) * | 1989-10-16 | 1991-06-04 | Fujitsu Ltd | Optical module |
| JPH046507A (en) * | 1990-04-24 | 1992-01-10 | Furukawa Electric Co Ltd:The | Elastic sleeve for optical adapter |
| JP2002303758A (en) * | 2001-04-03 | 2002-10-18 | Hikari Tekku Kk | Sleeve structure |
| US20030059170A1 (en) * | 1997-03-06 | 2003-03-27 | Setsuo Shouji | Split sleeve preform |
| US6616462B2 (en) * | 2001-09-04 | 2003-09-09 | Tonami Electronics Corporation | Convertible multi-diameter sleeve for optical fiber connectors |
| US6695487B2 (en) * | 2000-06-14 | 2004-02-24 | Ykk Corporation | Conversion adapter for ferrules having different diameters and method for production thereof |
-
2006
- 2006-06-22 CN CNU2006200973613U patent/CN2921864Y/en not_active Expired - Lifetime
-
2007
- 2007-06-20 WO PCT/CN2007/001922 patent/WO2008000149A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03130706A (en) * | 1989-10-16 | 1991-06-04 | Fujitsu Ltd | Optical module |
| JPH046507A (en) * | 1990-04-24 | 1992-01-10 | Furukawa Electric Co Ltd:The | Elastic sleeve for optical adapter |
| US20030059170A1 (en) * | 1997-03-06 | 2003-03-27 | Setsuo Shouji | Split sleeve preform |
| US6695487B2 (en) * | 2000-06-14 | 2004-02-24 | Ykk Corporation | Conversion adapter for ferrules having different diameters and method for production thereof |
| JP2002303758A (en) * | 2001-04-03 | 2002-10-18 | Hikari Tekku Kk | Sleeve structure |
| US6616462B2 (en) * | 2001-09-04 | 2003-09-09 | Tonami Electronics Corporation | Convertible multi-diameter sleeve for optical fiber connectors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN2921864Y (en) | 2007-07-11 |
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