CN104216058A - Two-channel optical fiber rotating connector - Google Patents
Two-channel optical fiber rotating connector Download PDFInfo
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- CN104216058A CN104216058A CN201310554879.XA CN201310554879A CN104216058A CN 104216058 A CN104216058 A CN 104216058A CN 201310554879 A CN201310554879 A CN 201310554879A CN 104216058 A CN104216058 A CN 104216058A
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- glass capillary
- turning
- turning end
- stiff end
- collimating apparatus
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 33
- 239000011521 glass Substances 0.000 claims abstract description 54
- 230000011514 reflex Effects 0.000 claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to a two-channel optical fiber rotating connector which comprises a fixed shell and a rotating shell. A rotating end collimator and a rotating end glass capillary tube are arranged in the rotating shell, a fixed end collimator and the fixed end glass capillary tube are arranged in the fixed shell, a rotating end reflection mirror used for reflecting emergent light of the rotating end collimator towards the rotating end glass capillary tube is arranged on the rotating end collimator, a first central reflection mirror used for reflecting reflected light of the rotating end reflection mirror towards the fixed end glass capillary tube is arranged on the rotating end glass capillary tube, a second central reflection mirror used for reflecting reflected light of the first central reflection mirror towards the fixed end collimator is arranged on the fixed end glass capillary tube, and a fixed end reflection mirror used for reflecting reflected light of the second central reflection mirror to the fixed end collimator along the axial direction is arranged at the front end of the fixed end collimator. The two-channel optical fiber rotating connector is small in radial size and axial size.
Description
Technical field
The present invention relates to the Dual-channel rotary optical fiber connector for optical signal transmission.
Background technology
Fiber rotation connector is that one utilizes optical fiber as transmission medium, and by the mechanism carrying out transmitting between platform and another static platform that signal rotates at, at present, the connector of the type is being widely used in different fields.Wherein can realize the fiber rotation connector that two ways of optical signals propagates simultaneously and be called Dual-channel rotary optical fiber connector, existing Dual-channel rotary optical fiber connector is " a kind of Dual-channel rotary optical fiber connector " disclosed in Chinese patent literature CN102914823A, this connector comprises stationary housing, the front end of stationary housing is rotatably equipped with the roll-shell that pivot center extends along the longitudinal direction, be provided with the center incident collimating apparatus and the incident collimating apparatus of paraxonic that are parallel to each other in roll-shell, center incident collimating apparatus and roll-shell are coaxially set; The convex lens be coaxially set with roll-shell and concavees lens are arranged at intervals with along the longitudinal direction in stationary housing, the center position of convex lens is provided with the receive centre collimating apparatus be coaxially set with center incident collimating apparatus, receive centre collimating apparatus is connected with optical fiber, and the rear of concavees lens is provided with the paraxonic receiver be coaxially set with roll-shell.During use, one road light signal is through center incident collimating apparatus, the transmission of receive centre collimating apparatus, and because center incident collimating apparatus, receive centre collimating apparatus are all coaxially set with roll-shell, therefore no matter how roll-shell rotates, and this road light signal can transmit smoothly; Another road light signal, through paraxonic incident collimating apparatus directive concavees lens, then reflects to convex lens, is finally received by paraxonic receiver, also can ensure that this road light signal transmits smoothly when roll-shell rotates by the setting of convex lens and concavees lens.Existing this fiber rotation connector Problems existing is: employing convex lens, concavees lens carry out refraction of light path, the spacing of concavees lens and convex lens and the distance between paraxonic receiver and concavees lens all must meet certain requirement, will increase the axial length of whole fiber rotation connector like this, the use of convex lens also can increase the radial structure size of product; Concave, convex lens must be coaxially set with roll-shell simultaneously, and this also can increase making and the assembly difficulty of fiber rotation connector.
Summary of the invention
The object of the present invention is to provide the Dual-channel rotary optical fiber connector that a kind of radial dimension, axial dimension are all less.
In order to solve the problem, technical scheme of the present invention is:
Dual-channel rotary optical fiber connector, the roll-shell that the pivot center comprising stationary housing and front end rotation assembling thereof extends along the longitudinal direction, in roll-shell, coaxial cable is fixedly equipped with turning end glass capillary, the stiff end glass capillary be coaxially set with turning end glass capillary is fixedly equipped with in stationary housing, also fixedly be equipped with in turning end housing and turning end glass capillary eccentric setting, and the turning end collimating apparatus axially extended along the longitudinal direction, the rear end of turning end collimating apparatus be provided with for by the injection light of turning end collimating apparatus radially towards the turning end mirror surface of turning end glass capillary reflection, the rear end of turning end glass capillary is provided with and be arranged in parallel with turning end mirror surface, and for by the reflected light of turning end mirror surface vertically towards stiff end glass capillary reflection the first foveal reflex minute surface, the front end of stiff end glass capillary is provided with and be arranged in parallel with the first foveal reflex minute surface, and for by the reflected light of the first foveal reflex minute surface radially towards stiff end collimating apparatus reflection the second foveal reflex minute surface, the front end of stiff end collimating apparatus is provided with and be arranged in parallel with described second foveal reflex minute surface, and for the reflected light of the second foveal reflex minute surface is reflected to the stiff end mirror surface of stiff end collimating apparatus vertically, turning end glass capillary has the endoporus worn for turning end fiber-coaxial line, and stiff end glass capillary has the endoporus worn for stiff end fiber-coaxial line.
The dielectric reflection film that the first described foveal reflex minute surface is located on described rear end face by rear end face and the plating of turning end glass capillary is formed.
The dielectric reflection film that the second described foveal reflex minute surface is located on described front end face by front end face and the plating of stiff end glass capillary is formed.
The rear end of described turning end collimating apparatus is provided with the girdle prisms such as the first right angle, the girdle prisms such as the first right angle have a hypotenuse reflecting surface and two mutually perpendicular straight flange transparent surfaces, one of them straight flange transparent surface is to being attached on the rear end face of turning end collimating apparatus, and described turning end mirror surface is made up of the hypotenuse reflecting surface of the girdle prisms such as described first right angle.
The front end of described stiff end collimating apparatus is provided with the girdle prisms such as the second right angle, the girdle prisms such as the second right angle have a hypotenuse reflecting surface and two mutually perpendicular straight flange transparent surfaces, one of them straight flange transparent surface is to being attached on the front end face of stiff end collimating apparatus, and described stiff end mirror surface is made up of the hypotenuse reflecting surface of the girdle prisms such as described second right angle.
The rotation axis that described roll-shell comprises rotation case and is fixedly assemblied in rotation case, the turning end center mounting hole loaded for described turning end glass capillary is provided with in described rotation axis, rotation axis is also provided with the turning end eccentric mounting hole be arranged in parallel with turning end center mounting hole or the eccentric mounting groove of turning end extended on rotation axis outer peripheral face, described turning end collimating apparatus is fixedly installed in described turning end eccentric mounting hole or the eccentric mounting groove of turning end.
The stationary shaft that described stationary housing comprises fixed housing and is fixedly assemblied in fixed housing, fixed housing is rotatably assorted by bearing and rotation case, the stiff end center mounting hole loaded for described stiff end glass capillary is provided with in stationary shaft, stationary shaft is also provided with the stiff end eccentric mounting hole be arranged in parallel with stiff end center mounting hole or the eccentric mounting groove of stiff end extended on stationary shaft outer peripheral face, described stiff end collimating apparatus is fixedly installed in described stiff end eccentric mounting hole or the eccentric mounting groove of stiff end.
Beneficial effect of the present invention is: in use, turning end optical fiber is loaded in the endoporus of turning end glass capillary, stiff end optical fiber is loaded in the endoporus of stiff end glass capillary, one road light signal through turning end Optical Fiber Transmission to stiff end optical fiber, because turning end optical fiber, stiff end optical fiber are all coaxially set with roll-shell, so when roll-shell rotates, this road light signal also can transmit smoothly, another road light signal is directive turning end mirror surface after turning end collimating apparatus, the injection light that turning end is collimated it by turning end mirror surface radially reflects to the first foveal reflex minute surface, then the reflected light of turning end mirror surface reflects towards the second foveal reflex minute surface by the first foveal reflex minute surface vertically, the reflected light of the first foveal reflex minute surface radially reflects towards stiff end mirror surface by the second foveal reflex minute surface, stiff end mirror surface by the reflected light back of the second foveal reflex minute surface to stiff end collimating apparatus, due to first, two foveal reflex minute surfaces are in the center of roll-shell and stationary housing respectively, therefore no matter how roll-shell rotates, first, light path between two foveal reflex minute surfaces is constant, and the relative second foveal reflex minute surface of stiff end mirror surface is fixed, the relative first foveal reflex minute surface of turning end mirror surface is fixed, thus ensure the smooth transmission of this road light signal.Dual-channel rotary optical fiber connector in the present invention does not need convex, concavees lens, plane mirror is just utilized to reflect, therefore do not need in the axial direction to ensure corresponding focal length, so just can reduce the axial dimension of whole connector, in addition owing to not needing the translucent element using this outside dimension of convex lens larger, also can reduce the radial dimension of whole connector, thus the miniaturization realizing connector makes.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present of invention;
Fig. 2 is the optic path schematic diagram of Fig. 1;
Fig. 3 is the A place enlarged drawing in Fig. 1.
Embodiment
The embodiment of Dual-channel rotary optical fiber connector is as shown in Figures 1 to 3: comprise the roll-shell that the pivot center that stationary housing and front end thereof rotates assembling extends along the longitudinal direction.Stationary housing comprises fixed housing 5 and is fixedly assemblied in stationary shaft 9 in fixed housing, roll-shell comprises the rotation case 1 be rotatably assorted by bearing 4 and fixed housing and the rotation axis 20 be fixedly assemblied in rotation case, be provided with turning end center mounting hole in rotation axis and be arranged in parallel with turning end center mounting hole and extend to the eccentric mounting groove of turning end on rotation axis outer peripheral face, turning end center mounting hole and rotation axis, rotation case is coaxially set, turning end glass capillary 14 is fixedly installed in turning end center mounting hole, turning end glass capillary has the endoporus worn for turning end optical fiber 15 coaxial cable, turning end collimating apparatus 13 is fixedly installed in the eccentric mounting groove of turning end.Be provided with stiff end center mounting hole in stationary shaft and be arranged in parallel with stiff end center mounting hole and extend to the eccentric mounting groove of stiff end on stationary shaft outer peripheral face, stiff end center mounting hole and turning end center mounting hole are coaxially set, stiff end center mounting hole is fixedly installed stiff end glass capillary 7, be fixedly installed stiff end collimating apparatus 6 in the eccentric mounting groove of stiff end, stiff end glass capillary has the endoporus worn for stiff end optical fiber 8 coaxial cable.The rear end of turning end collimating apparatus is provided with the girdle prisms 11 such as the first right angle, the girdle prisms such as the first right angle have a hypotenuse reflecting surface and two mutually perpendicular straight flange transparent surfaces, one of them straight flange transparent surface is to being attached on the rear end face of turning end collimating apparatus, the hypotenuse reflecting surface of the girdle prisms such as the first right angle is configured for the injection light of turning end collimating apparatus radially towards the turning end mirror surface 17 of turning end glass capillary reflection, rear end face 14-1 and the turning end mirror surface of turning end glass capillary be arranged in parallel, and the rear end face of turning end glass capillary is coated with dielectric reflection film, the rear end face of turning end glass capillary and it plates the dielectric reflection film established just constitute for by the reflected light of turning end mirror surface vertically towards the first foveal reflex minute surface that stiff end glass capillary reflects.The front end face 7-1 of stiff end glass capillary and the front end face of turning end glass capillary be arranged in parallel, and dielectric reflection film is coated with on the front end face of stiff end glass capillary, the front end face of stiff end glass capillary and it plates the dielectric reflection film established constitute for by the reflected light of turning end mirror surface radially towards the second foveal reflex minute surface that stiff end collimating apparatus reflects, the front end of stiff end collimating apparatus is provided with the girdle prisms 16 such as the second right angle, the girdle prisms such as the second right angle have a hypotenuse reflecting surface and two orthogonal straight flange transparent surfaces, one of them straight flange transparent surface is to being attached on the front end face of stiff end collimating apparatus, the hypotenuse reflecting surface of the girdle prisms such as the second right angle is configured for the reflected light of the second foveal reflex minute surface to reflect vertically to the stiff end mirror surface 18 of stiff end collimating apparatus.In figure, 19 represent matching fluid, and 3 represent ring flange, and 2 represent O-ring seal, and 10,12 represent end ring bearing 4 being carried out to axial limiting.
During work, Center Road light signal is through turning end optical fiber, stiff end Optical Fiber Transmission; Bypass light signal 21 transmits through the rear end face of the girdle prisms such as turning end collimating apparatus, the first right angle, turning end glass capillary, the girdle prism such as front end face, the second right angle of stiff end glass capillary and stiff end collimating apparatus.Structure of the present invention is simple, be easy to realize, and the running accuracy of rotating mechanism is easy to ensure, the rotation variable quantity that luminous energy exports is little; The girdle prisms such as first, second right angle do not have right alignment requirement, are easy to install.In other embodiments of the invention: the rear end face of turning end glass capillary and/or the front end face of stiff end glass capillary also can be face directly, now can set firmly the girdle prisms such as right angle on corresponding glass capillary, the reflection of corresponding light path is completed by the hypotenuse reflecting surface of the girdle prisms such as right angle, now the first and/or second foveal reflex minute surface is made up of the hypotenuse reflecting surface of the girdle prisms such as corresponding right angle, and turning end optical fiber and/or stiff end optical fiber are passed to carry out Signal transmissions by corresponding hypotenuse reflecting surface respectively; The girdle prisms such as first, second right angle can not also be established, and now need the front end face of the rear end face of turning end collimating apparatus, stiff end collimating apparatus to be arranged to the inclined-plane that an inclination angle is 45 degree, on each inclined-plane, then plate dielectric reflection film make it to become a mirror surface; Rotation axis and rotation case can also be wholely set, and stationary shaft and fixed housing also can be wholely set; The eccentric mounting groove of turning end can also be replaced by the pore structure do not extended on rotation axis outer peripheral face, and the eccentric mounting groove of stiff end can also be replaced by the pore structure do not extended on stationary shaft outer peripheral face.
Claims (7)
1. Dual-channel rotary optical fiber connector, the roll-shell that the pivot center comprising stationary housing and front end rotation assembling thereof extends along the longitudinal direction, it is characterized in that: in roll-shell, coaxial cable is fixedly equipped with turning end glass capillary, the stiff end glass capillary be coaxially set with turning end glass capillary is fixedly equipped with in stationary housing, also fixedly be equipped with in turning end housing and turning end glass capillary eccentric setting, and the turning end collimating apparatus axially extended along the longitudinal direction, the rear end of turning end collimating apparatus be provided with for by the injection light of turning end collimating apparatus radially towards the turning end mirror surface of turning end glass capillary reflection, the rear end of turning end glass capillary is provided with and be arranged in parallel with turning end mirror surface, and for by the reflected light of turning end mirror surface vertically towards stiff end glass capillary reflection the first foveal reflex minute surface, the front end of stiff end glass capillary is provided with and be arranged in parallel with the first foveal reflex minute surface, and for by the reflected light of the first foveal reflex minute surface radially towards stiff end collimating apparatus reflection the second foveal reflex minute surface, the front end of stiff end collimating apparatus is provided with and be arranged in parallel with described second foveal reflex minute surface, and for the reflected light of the second foveal reflex minute surface is reflected to the stiff end mirror surface of stiff end collimating apparatus vertically, turning end glass capillary has the endoporus worn for turning end fiber-coaxial line, and stiff end glass capillary has the endoporus worn for stiff end fiber-coaxial line.
2. Dual-channel rotary optical fiber connector according to claim 1, is characterized in that: the dielectric reflection film that the first described foveal reflex minute surface is located on described rear end face by rear end face and the plating of turning end glass capillary is formed.
3. Dual-channel rotary optical fiber connector according to claim 1, is characterized in that: the dielectric reflection film that the second described foveal reflex minute surface is located on described front end face by front end face and the plating of stiff end glass capillary is formed.
4. Dual-channel rotary optical fiber connector according to claim 1, it is characterized in that: the rear end of described turning end collimating apparatus is provided with the girdle prisms such as the first right angle, the girdle prisms such as the first right angle have a hypotenuse reflecting surface and two mutually perpendicular straight flange transparent surfaces, one of them straight flange transparent surface is to being attached on the rear end face of turning end collimating apparatus, and described turning end mirror surface is made up of the hypotenuse reflecting surface of the girdle prisms such as described first right angle.
5. Dual-channel rotary optical fiber connector according to claim 1, it is characterized in that: the front end of described stiff end collimating apparatus is provided with the girdle prisms such as the second right angle, the girdle prisms such as the second right angle have a hypotenuse reflecting surface and two mutually perpendicular straight flange transparent surfaces, one of them straight flange transparent surface is to being attached on the front end face of stiff end collimating apparatus, and described stiff end mirror surface is made up of the hypotenuse reflecting surface of the girdle prisms such as described second right angle.
6. the Dual-channel rotary optical fiber connector according to Claims 1 to 5 any one, it is characterized in that: the rotation axis that described roll-shell comprises rotation case and is fixedly assemblied in rotation case, the turning end center mounting hole loaded for described turning end glass capillary is provided with in described rotation axis, rotation axis is also provided with the turning end eccentric mounting hole be arranged in parallel with turning end center mounting hole or the eccentric mounting groove of turning end extended on rotation axis outer peripheral face, described turning end collimating apparatus is fixedly installed in described turning end eccentric mounting hole or the eccentric mounting groove of turning end.
7. Dual-channel rotary optical fiber connector according to claim 6, it is characterized in that: the stationary shaft that described stationary housing comprises fixed housing and is fixedly assemblied in fixed housing, fixed housing is rotatably assorted by bearing and rotation case, the stiff end center mounting hole loaded for described stiff end glass capillary is provided with in stationary shaft, stationary shaft is also provided with the stiff end eccentric mounting hole be arranged in parallel with stiff end center mounting hole or the eccentric mounting groove of stiff end extended on stationary shaft outer peripheral face, described stiff end collimating apparatus is fixedly installed in described stiff end eccentric mounting hole or the eccentric mounting groove of stiff end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310554879.XA CN104216058B (en) | 2013-08-12 | 2013-11-08 | Dual-channel rotary optical fiber connector |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310348601.7 | 2013-08-12 | ||
| CN2013103486017 | 2013-08-12 | ||
| CN201310348601 | 2013-08-12 | ||
| CN201310554879.XA CN104216058B (en) | 2013-08-12 | 2013-11-08 | Dual-channel rotary optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104216058A true CN104216058A (en) | 2014-12-17 |
| CN104216058B CN104216058B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310554879.XA Active CN104216058B (en) | 2013-08-12 | 2013-11-08 | Dual-channel rotary optical fiber connector |
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| CN (1) | CN104216058B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7515782B2 (en) * | 2006-03-17 | 2009-04-07 | Zhang Boying B | Two-channel, dual-mode, fiber optic rotary joint |
| CN201373929Y (en) * | 2009-02-27 | 2009-12-30 | 普林(廊坊)光电技术有限公司 | Optical-fiber rotating joint with dual passage |
| CN201464674U (en) * | 2009-04-28 | 2010-05-12 | 普林(廊坊)光电技术有限公司 | Single channel optical fiber rotary connector |
| US20100195956A1 (en) * | 2009-02-02 | 2010-08-05 | Zhang Boying B | Multi-channel fiber optic rotary joint using de-rotating lens |
| US20120087624A1 (en) * | 2010-10-06 | 2012-04-12 | Hong Zhang | Fiber optic rotary joint mechanism |
-
2013
- 2013-11-08 CN CN201310554879.XA patent/CN104216058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7515782B2 (en) * | 2006-03-17 | 2009-04-07 | Zhang Boying B | Two-channel, dual-mode, fiber optic rotary joint |
| US20100195956A1 (en) * | 2009-02-02 | 2010-08-05 | Zhang Boying B | Multi-channel fiber optic rotary joint using de-rotating lens |
| CN201373929Y (en) * | 2009-02-27 | 2009-12-30 | 普林(廊坊)光电技术有限公司 | Optical-fiber rotating joint with dual passage |
| CN201464674U (en) * | 2009-04-28 | 2010-05-12 | 普林(廊坊)光电技术有限公司 | Single channel optical fiber rotary connector |
| US20120087624A1 (en) * | 2010-10-06 | 2012-04-12 | Hong Zhang | Fiber optic rotary joint mechanism |
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| Publication number | Publication date |
|---|---|
| CN104216058B (en) | 2016-03-23 |
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