CN109932781A - A kind of optical fiber connector and its eccentric contact is expanded in parallel - Google Patents
A kind of optical fiber connector and its eccentric contact is expanded in parallel Download PDFInfo
- Publication number
- CN109932781A CN109932781A CN201711376196.4A CN201711376196A CN109932781A CN 109932781 A CN109932781 A CN 109932781A CN 201711376196 A CN201711376196 A CN 201711376196A CN 109932781 A CN109932781 A CN 109932781A
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- lens
- lock pin
- parallel
- casing
- bias
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- Optical Couplings Of Light Guides (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to a kind of optical fiber connectors and its bias to expand contact in parallel, it includes lens and lock pin that bias, which expands contact in parallel, the lens and lock pin coaxially assemble, the inner hole for defining casing is axially front-rear direction, the lock pin is located at the rear side of lens, the front end face of the lock pin is inclined-plane, the rear end face of the lens is facade so that optical path passes through lens extension and bias projects in parallel, so as to make optical path extend and deviate towards side when passing through lens, then it is projected again with directional light, the structure not only improves the environmental resistance of product, and has to the return loss of product and greatly improve.
Description
Technical field
The present invention relates to a kind of optical fiber connectors and its bias to expand contact in parallel.
Background technique
Expanding contact main function in parallel is to be converted into collimated light to the light issued in optical fiber comprising tail optical fiber lock pin,
Casing and lens etc., wherein tail optical fiber lock pin and lens are coaxially assemblied in casing, to guarantee that the optical axis of the two is located at same
On straight line, and tail optical fiber lock pin front end face faces the rear end face of collimation lens.And the contact in the prior art that expands is due to it
The front end face of tail optical fiber and the rear end face of lens are plane, and return loss obtains absolute value no more than 20dB, in some pairs of return loss
The higher occasion of performance requirement cannot be met the requirements, return loss describe with it is intended that the opposite light of transmission direction,
The absolute value of return loss is the bigger the better, it is now desired to design it is a kind of can satisfy higher return loss performance requirement in parallel expand
Contact.
Summary of the invention
The purpose of the present invention is to provide a kind of bias to expand contact in parallel, to solve in the prior art to expand contact
The lesser problem of part return loss value；The object of the invention is also to provide a kind of light for expanding contact in parallel using the bias
Fiber connector.
To achieve the above object, the eccentric technical solution for expanding contact in parallel of the present invention is:
Scheme 1: bias expands contact, including lens and lock pin in parallel, and the lens and lock pin coaxially assemble, and define casing
Inner hole is axially front-rear direction, and the lock pin is located at the rear side of lens, and the front end face of the lock pin is inclined-plane, after the lens
End face is facade so that optical path passes through lens extension and bias projects in parallel.
Scheme 2: on the basis of scheme 1, it further includes casing that bias, which expands contact in parallel, and lens and lock pin coaxially assemble
The optical axis oriented structure for positioning optical axis direction, the optical axis orientation knot are provided in the inner hole of casing, in described sleeve pipe
Structure is made of the outer peripheral surface of casing.
Scheme 3: on the basis of scheme 2, the inner hole of described sleeve pipe and the axis of outer circle are consistent, the lens and lock pin
Axis is consistent with the interior axially bored line of casing.
Scheme 4: on the basis of scheme 2 or 3, described sleeve pipe is installed on insulator, on the outer peripheral surface of the insulator
It is provided with the angle recognition structure of the offset direction of optical path for identification.
Scheme 5: on the basis of scheme 4, the angle recognition structure includes the singly-bound of setting on insulator.
The technical solution of optical fiber connector of the present invention is:
Scheme 6: optical fiber connector is put down including shell with the intracorporal bias for being mutually adapted connection realization conducting light paths of shell is arranged in
Row expands contact, and it includes lens and lock pin that bias, which expands contact in parallel, and the lens and lock pin coaxially assemble, and defines casing
Inner hole be axially front-rear direction, the lock pin is located at the rear side of lens, and the front end face of the lock pin is inclined-plane, the lens
Rear end face is facade so that optical path passes through lens extension and bias projects in parallel.
Scheme 7: on the basis of scheme 6, it further includes casing that bias, which expands contact in parallel, and lens and lock pin coaxially assemble
The optical axis oriented structure for positioning optical axis direction, the optical axis orientation knot are provided in the inner hole of casing, in described sleeve pipe
Structure is made of the outer peripheral surface of casing.
Scheme 8: on the basis of scheme 7, the inner hole of described sleeve pipe and the axis of outer circle are consistent, the lens and lock pin
Axis is consistent with the interior axially bored line of casing.
Scheme 9: on the basis of scheme 7 or 8, described sleeve pipe is installed on insulator, on the outer peripheral surface of the insulator
It is provided with the angle recognition structure of the offset direction of optical path for identification.
Scheme 10: on the basis of scheme 9, the angle recognition structure includes the singly-bound of setting on insulator.
The beneficial effects of the present invention are: compared with the prior art, bias according to the present invention expands contact in parallel, lead to
Crossing using the rear end face for coaxially assembling lens and lock pin, while lens being arranged is facade, and the front end face of lock pin is inclined-plane, thus
Optical path can be made to extend and deviate towards side when passing through lens, then projected again with directional light, such setting form energy
The reflectivity of light is enough reduced, and then increases return loss value, which not only improves the environmental resistance of product, and to production
The return loss of product, which has, greatly to be improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the specific embodiment that bias of the invention expands contact in parallel；
Fig. 2 is the structural schematic diagram of casing and insulator assembly；
Fig. 3 is the left view of Fig. 2.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
Bias of the invention expands the specific embodiment of contact in parallel, and as shown in Figure 1 to Figure 3, which mainly wraps
Casing 1, lens 3 and lock pin 2 are included, in the present embodiment, the axis direction for defining casing 1 is front-rear direction, lock pin 2 and lens 3
It is successively assemblied in the inner hole of casing 1 along the longitudinal direction, wherein lock pin 2 is located at the internal control rear end of casing 1, lens 3 are located at casing 1
Internal control front end.
It is the assembly supporting body of other components for casing 1, each part is assemblied on casing 1, casing
1 is inside and outside coaxial sleeve, i.e. the inner hole of casing 1 and the axis of outer circle is consistent, along the longitudinal direction, after the outer circle of middle sleeve 1
Face constitutes the optical axis oriented structure for orienting optical axis axial direction.
Be ceramic contact pin for lock pin 2, in the present embodiment, casing 1 be straight structure, internal control it is each
The diameter of a position is consistent, and the outer diameter of lens 3 is consistent with the outer diameter of lock pin 2, and lock pin 2 and lens 3 with it is above-mentioned
Casing 1 between be clearance fit, between the coaxial assembly and the two and casing 1 so as to guarantee lens 3 and lock pin 2
Coaxial assembly, calibrated without external complex and the fixed ray machine that collimator before the light can be realized is coaxial, knot to realize
Structure is simple.In the present embodiment, lock pin 2 is the coaxial structure of high-precision ray machine, and lens 3 are also that high-precision ray machine is coaxial
Structure, and in order to realize that the contact can have biggish return loss, in the present embodiment, the rear end of above-mentioned lens 3
Face 31 be facade, lock pin 2 front end face 21 be inclined-plane, and the bevel inclination angle of lock pin 2 can be realized and enter lens 3 in optical path
Afterwards, it by the extension of lens 3 and bias, finally being projected with directional light, such setting form can reduce the reflectivity of light,
And then increase return loss value.
Certainly, in order to guarantee that the connector at contact both ends can use same contact, to guarantee after being packed into product
Realize that optical path is deviated to same direction and parallel transmission, the contact also have the offset side for light path in lens 3
To angle recognition structure, in the present embodiment, above-mentioned casing 1 is sat in insulator 4, and angle recognition structure includes that setting exists
Singly-bound 41 on the periphery of insulator 4 passes through the inclination of singly-bound 41 and the front end face 21 of lock pin 2 in the actual working process
Angle between direction judges the inclined direction of optical path, and cooperates with the connector being adapted to, so that the connector at both ends
Can be to same direction offset and parallel transmission, using and repairing convenient for product.
In the present embodiment, the extending direction for defining singly-bound 41 is upward, then the inclination extending direction of the front end face 21 of lock pin 2
It is preferably θ between the projection on facade and singly-bound 41 in 120 degree, can guarantees to share same connect with the connector being adapted in this way
Contact element.
Certainly, in other embodiments, it can be not provided with inside and outside coaxial sleeve, it is real only by common machinery adjustment mode
The orientation of existing optical axis can also；Angle recognition structure can also use the identification slot of setting on insulator, or by non-right
The multiple keys claimed are realized.
The embodiment of optical fiber connector according to the present invention, including shell and setting are expanded in the intracorporal eccentric level of shell
Contact, it is consistent that structure and above-mentioned eccentric level expand the structure in the embodiment of contact, is no longer developed in details.
Claims (10)
1. bias expands contact, including lens and lock pin in parallel, the lens and lock pin are coaxially assembled, it is characterised in that: fixed
The inner hole of adopted casing is axially front-rear direction, and the lock pin is located at the rear side of lens, and the front end face of the lock pin is inclined-plane, described
The rear end face of lens is facade so that optical path passes through lens extension and bias projects in parallel.
2. bias according to claim 1 expands contact in parallel, it is characterised in that: bias expands contact in parallel and also wraps
Casing is included, lens and lock pin are coaxially assemblied in the inner hole of casing, and the light for positioning optical axis direction is provided in described sleeve pipe
Axis oriented structure, the optical axis oriented structure are made of the outer peripheral surface of casing.
3. eccentric contact is expanded in parallel according to claim 2, it is characterised in that: the inner hole of described sleeve pipe and outer circle
Axis is consistent, and the axis of the lens and lock pin and the interior axially bored line of casing are consistent.
4. bias according to claim 2 or 3 expands contact in parallel, it is characterised in that: described sleeve pipe is mounted on insulation
On body, the angle recognition structure of the offset direction of optical path for identification is provided on the outer peripheral surface of the insulator.
5. bias according to claim 4 expands contact in parallel, it is characterised in that: the angle recognition structure includes setting
Set singly-bound on insulator.
6. optical fiber connector connects the eccentric parallel expansion for realizing conducting light paths with intracorporal be mutually adapted of shell is arranged in including shell
Beam contact, it includes lens and lock pin that bias, which expands contact in parallel, and the lens and lock pin coaxially assemble, it is characterised in that:
The inner hole for defining casing is axially front-rear direction, and the lock pin is located at the rear side of lens, and the front end face of the lock pin is inclined-plane, institute
The rear end face for stating lens is facade so that optical path passes through lens extension and bias projects in parallel.
7. optical fiber connector according to claim 6, it is characterised in that: it further includes casing that bias, which expands contact in parallel,
Lens and lock pin are coaxially assemblied in the inner hole of casing, and the optical axis orientation knot for positioning optical axis direction is provided in described sleeve pipe
Structure, the optical axis oriented structure are made of the outer peripheral surface of casing.
8. optical fiber connector according to claim 7, it is characterised in that: the inner hole of described sleeve pipe and the axis one of outer circle
Cause, the lens and the axis of lock pin and the interior axially bored line of casing are consistent.
9. optical fiber connector according to claim 7 or 8, it is characterised in that: described sleeve pipe is installed on insulator, described
The angle recognition structure of the offset direction of optical path for identification is provided on the outer peripheral surface of insulator.
10. optical fiber connector according to claim 9, it is characterised in that: the angle recognition structure includes being arranged exhausted
Singly-bound on edge body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711376196.4A CN109932781A (en) | 2017-12-19 | 2017-12-19 | A kind of optical fiber connector and its eccentric contact is expanded in parallel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711376196.4A CN109932781A (en) | 2017-12-19 | 2017-12-19 | A kind of optical fiber connector and its eccentric contact is expanded in parallel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109932781A true CN109932781A (en) | 2019-06-25 |
Family
ID=66983810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711376196.4A Pending CN109932781A (en) | 2017-12-19 | 2017-12-19 | A kind of optical fiber connector and its eccentric contact is expanded in parallel |
Country Status (1)
| Country | Link |
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| CN (1) | CN109932781A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474638A (en) * | 2020-06-05 | 2020-07-31 | 上海航天科工电器研究院有限公司 | Structure and manufacturing process of plug-in beam expanding contact element |
| CN111505773A (en) * | 2020-05-13 | 2020-08-07 | 上海航天科工电器研究院有限公司 | Reinforced anti-rotation beam expanding optical fiber contact |
| CN113885135A (en) * | 2021-10-25 | 2022-01-04 | 中国电子科技集团公司第二十九研究所 | Novel power-resistant small-sized optical fiber beam expanding connector, beam expanding assembly and manufacturing method thereof |
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| CN1761899A (en) * | 2003-03-20 | 2006-04-19 | 日本电气硝子株式会社 | Optical collimator |
| JP2007193006A (en) * | 2006-01-18 | 2007-08-02 | Nippon Electric Glass Co Ltd | Optical component for optical communication |
| CN101750752A (en) * | 2010-01-13 | 2010-06-23 | 黄燕平 | Fiber collimator |
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| CN201780391U (en) * | 2010-07-21 | 2011-03-30 | 中航光电科技股份有限公司 | Fiber beam expansion contact and fiber beam expansion connector using same |
| CN106324768A (en) * | 2016-10-28 | 2017-01-11 | 中航光电科技股份有限公司 | Optical fiber beam expanding connector, optical fiber beam expanding contact thereof and sleeve assembly |
| CN106383381A (en) * | 2016-10-28 | 2017-02-08 | 中航光电科技股份有限公司 | Optical fiber beam expanding connector, optical fiber beam expanding contactor, optical fiber pin and sleeve thereof |
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2017
- 2017-12-19 CN CN201711376196.4A patent/CN109932781A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761899A (en) * | 2003-03-20 | 2006-04-19 | 日本电气硝子株式会社 | Optical collimator |
| JP2007193006A (en) * | 2006-01-18 | 2007-08-02 | Nippon Electric Glass Co Ltd | Optical component for optical communication |
| CN101750752A (en) * | 2010-01-13 | 2010-06-23 | 黄燕平 | Fiber collimator |
| CN101852900A (en) * | 2010-06-29 | 2010-10-06 | 上海大学 | Collimation-type optical fiber connector |
| CN201780391U (en) * | 2010-07-21 | 2011-03-30 | 中航光电科技股份有限公司 | Fiber beam expansion contact and fiber beam expansion connector using same |
| CN106324768A (en) * | 2016-10-28 | 2017-01-11 | 中航光电科技股份有限公司 | Optical fiber beam expanding connector, optical fiber beam expanding contact thereof and sleeve assembly |
| CN106383381A (en) * | 2016-10-28 | 2017-02-08 | 中航光电科技股份有限公司 | Optical fiber beam expanding connector, optical fiber beam expanding contactor, optical fiber pin and sleeve thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505773A (en) * | 2020-05-13 | 2020-08-07 | 上海航天科工电器研究院有限公司 | Reinforced anti-rotation beam expanding optical fiber contact |
| CN111505773B (en) * | 2020-05-13 | 2022-02-08 | 上海航天科工电器研究院有限公司 | Reinforced anti-rotation beam expanding optical fiber contact |
| CN111474638A (en) * | 2020-06-05 | 2020-07-31 | 上海航天科工电器研究院有限公司 | Structure and manufacturing process of plug-in beam expanding contact element |
| CN113885135A (en) * | 2021-10-25 | 2022-01-04 | 中国电子科技集团公司第二十九研究所 | Novel power-resistant small-sized optical fiber beam expanding connector, beam expanding assembly and manufacturing method thereof |
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Application publication date: 20190625 |