CN213091933U - Optical alignment positioning device - Google Patents
Optical alignment positioning device Download PDFInfo
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- CN213091933U CN213091933U CN202021440533.9U CN202021440533U CN213091933U CN 213091933 U CN213091933 U CN 213091933U CN 202021440533 U CN202021440533 U CN 202021440533U CN 213091933 U CN213091933 U CN 213091933U
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Abstract
The utility model provides an optics collimation positioner, include: the optical fiber connector comprises an adapter, an optical fiber inserting core and an optical collimating lens, and the optical collimating lens is arranged in the fixed sleeve; one end of the fixed sleeve is sleeved outside the optical collimating lens, and the other end of the fixed sleeve is sleeved outside the adapter; one end of the adapter is embedded in the fixed sleeve, and the other end of the adapter is sleeved on the optical fiber insertion core; and the optical fiber inserting core is inserted into the adapter. The utility model provides an optics collimation positioner, optic fibre lock pin insert the adapter, and fixed muffjoint optics collimation lens and adapter realize the coupling encapsulation of optics collimation lens and optic fibre lock pin, can realize the integration encapsulation, promote the product uniformity, are favorable to reduce cost, reduce the encapsulation pipe casing volume, avoid simultaneously because of the inaccurate coupling efficiency who causes of counterpoint to reduce.
Description
Technical Field
The utility model relates to an optical device technical field, in particular to optics collimation positioner.
Background
In recent years, laser detection technology has been developed rapidly, and its working principle is to transmit a detection signal (laser beam) to a target, then compare the received signal (target echo) reflected from the target with the transmission signal, and after appropriate processing, obtain the relevant information of the target, such as target distance, azimuth, height, speed, etc., and is widely applied to products such as laser radar, laser pen, etc. In order to obtain a high quality laser product, the laser needs to be collimated so that a spot of a desired size is obtained over a range of distances, the spot size and energy determining the laser transmission distance.
The optical alignment positioning device for aligning laser in the prior art mainly comprises a simulation adjustment positioning structure and a mechanical butt joint alignment positioning structure. The simulation adjusting and positioning structure is matched with the fixed clamping base based on the six-dimensional fine adjustment frame, so that light beams with higher light spot quality can be achieved, but the packaging integration difficulty is extremely high; the mechanical butt joint alignment structure adopts a pure mechanical positioning hole installation mode, can realize batch packaging, but has low coupling efficiency and poor consistency of finished products.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, it is necessary to provide an optical alignment positioning apparatus to solve or partially solve the above problems, and the present invention provides the following solutions:
the utility model provides an optics collimation positioner, include: optical collimating lens, fixed sleeve, optical interface, fiber connector includes adapter, optic fibre lock pin, wherein:
an optical collimating lens built into the fixed sleeve;
one end of the fixed sleeve is sleeved outside the optical collimating lens, and the other end of the fixed sleeve is sleeved outside the adapter;
one end of the adapter is embedded in the fixed sleeve, and the other end of the adapter is sleeved on the optical fiber insertion core;
and the optical fiber inserting core is inserted into the adapter.
Furthermore, the optical alignment positioning device further comprises an optical interface, one end of the optical interface is sleeved on the fixing sleeve, and the middle of the optical interface is sleeved on the adapter.
Furthermore, the optical fiber connector further comprises a ceramic sleeve, the ceramic sleeve is embedded in the adapter, and the ceramic sleeve is externally sleeved on the optical fiber ferrule.
Furthermore, ceramic sleeve adopts opening ceramic sleeve, fiber connector still includes the sleeve body, sleeve body one end embedding in ceramic sleeve, the other end embedded in the adapter.
Furthermore, the open ceramic sleeve is provided with an opening, and the cross section of the open ceramic sleeve is C-shaped.
Furthermore, the optical fiber ferrule adopts a ceramic ferrule.
Furthermore, the optical interface adopts an FC type optical fiber movable connector interface, an MU type optical fiber movable connector interface, an SC type optical fiber movable connector interface, an ST type optical fiber movable connector interface, an LC type optical fiber movable connector interface, or an MT-RJ type optical fiber movable connector interface.
Furthermore, one end of the fixed sleeve, which is sleeved on the optical collimating lens, is provided with a thread.
Based on the technical scheme, the utility model discloses beneficial effect than prior art does:
the utility model provides an optics collimation positioner, include: the optical fiber connector comprises an adapter, an optical fiber inserting core and an optical collimating lens, and the optical collimating lens is arranged in the fixed sleeve; one end of the fixed sleeve is sleeved outside the optical collimating lens, and the other end of the fixed sleeve is sleeved outside the adapter; one end of the adapter is embedded in the fixed sleeve, and the other end of the adapter is sleeved on the optical fiber insertion core; and the optical fiber inserting core is inserted into the adapter.
The utility model provides an optics collimation positioner, use fixed sleeve to connect optics collimation lens and adapter, and during the optic fibre lock pin inserted the adapter, fixed sleeve realized the coupling encapsulation of optics collimation lens and optic fibre lock pin, break away from the six-dimensional fine-tuning frame among the prior art and simulate, can realize the integration encapsulation, the product uniformity has been promoted by a relatively large margin, be favorable to reduce cost, reduce the encapsulation pipe casing volume, fixed sleeve connection optics collimation lens and adapter simultaneously, use pure mechanical locating hole installation optics collimation lens and adapter among the prior art has been replaced, avoid reducing because of the inaccurate coupling efficiency who causes of counterpointing.
Drawings
Fig. 1 is a schematic structural diagram of an optical alignment positioning apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an optical alignment positioning apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of another optical alignment positioning apparatus according to a second embodiment of the present invention;
fig. 4 is a schematic structural view of an open ceramic sleeve according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
The present embodiment provides an optical alignment positioning apparatus, as shown in fig. 1, including: optical collimating lens 10, fixing sleeve 20, optical fiber connector 30, optical interface 40, optical fiber connector 30 includes adapter 31, optical fiber ferrule 32, wherein,
and the optical collimating lens 10 is arranged in the fixed sleeve 20 and is used for integrating the high-divergence light beams into a regular circular light beam to be transmitted.
The fixing sleeve 20 is sleeved on the optical collimating lens 10 at one end, and sleeved on the adapter 31 at the other end and embedded in the optical interface 40.
An adapter 31 has one end embedded in the fixing sleeve 20 and the other end embedded in the optical interface 40 and externally sleeved on the optical fiber ferrule 32.
And a fiber stub 32 inserted into the adapter 31 for fixing the optical fiber.
An optical interface 40, one end of which is sleeved on the fixing sleeve 20 and the middle of which is sleeved on the adapter 31.
The working principle of the optical alignment positioning device is as follows:
step S101: fixedly packaging the adapter 31 and the optical interface 40 into a package body;
step S102: integrally packaging the fixed sleeve 20 and the package body completed in the step S101 to form an optical fiber ferrule positioning structure, and inserting the optical fiber ferrule 32 into the molded positioning structure;
step S103: placing the optical collimating lens 10 into the fixed sleeve 20, and horizontally adjusting the optical collimating lens 10 along the optical axis to collimate the light beam;
step S104: after the specified light spot is observed, the optical collimating lens 10 is fixed through a thread;
step S105: and packaging the step S102 and the step S104 to finish optical alignment.
The optical alignment positioning device provided by the embodiment uses the fixing sleeve 20 to connect the optical alignment lens 10 and the adapter 31, the optical fiber ferrule 32 is inserted into the adapter 31, the fixing sleeve 20 realizes the coupling encapsulation of the optical alignment lens 10 and the optical fiber ferrule 32, the six-dimensional fine adjustment frame in the prior art is separated for simulation, the integrated encapsulation can be realized, the product consistency is greatly improved, the cost is reduced, the volume of the encapsulation tube shell is reduced, meanwhile, the fixing sleeve 20 is connected with the optical alignment lens 10 and the adapter 31, the situation that the optical alignment lens 10 and the adapter 31 are installed by using a pure mechanical positioning hole in the prior art is replaced, and the reduction of the coupling efficiency caused by misalignment is avoided.
The optical alignment positioning device provided by the embodiment can be applied to products such as laser radars, laser ranging and laser pens relating to laser detection technology.
In some embodiments, the fiber stub 32 is preferably a ferrule. The ceramic inserting core is a cylinder precisely centered in the optical fiber movable connector plug, and a micropore is arranged in the center of the ceramic inserting core and used for fixing an optical fiber. The ceramic ferrule has the following characteristics: 1. ensuring the butt joint of two optical fibers, wherein the single mode requires that the axial deviation is less than 1um, and the multi-mode requires that the axial deviation is less than 4 um; 2. the product is wear-resistant and can be repeatedly inserted and pulled; 3. the end is easy to process and can be ground into a spherical surface and an inclined spherical surface; 4. the product is anti-aging, and the service life is more than 30 years; 5. the material has small coefficient of expansion with heat and contraction with cold and strong environmental adaptability.
In some embodiments, the optical interface 40 is an FC-type optical fiber connector interface (also called round-head optical fiber connector interface), an SC-type optical fiber connector interface (also called square optical fiber connector interface), an ST-type optical fiber connector interface (also called snap-in round optical fiber connector interface), an LC-type optical fiber connector interface (also called snap-in square optical fiber connector interface), an MT-RJ-type optical fiber connector interface (also called snap-in conversion-standard receptacle optical fiber connector interface), or an MU-type optical fiber connector interface (MU connector is the smallest single-core optical fiber connector developed by NTT based on the SC-type connector which is most used currently).
In some embodiments, in order to fix the optical collimating lens 10 after optical collimating is completed, the end of the fixing sleeve 20 that is sleeved on the optical collimating lens 10 is provided with threads for screwing with external threads. After optical alignment is completed, the optical alignment lens 10 is fixed by screwing threads into the fixing sleeve 20 to hold the optical alignment lens 10.
Example two
The present embodiment provides an optical alignment positioning apparatus, as shown in fig. 2, including: optical collimating lens 10, fixing sleeve 20, optical fiber connector 30, optical interface 40, optical fiber connector 30 includes adapter 31, optical fiber ferrule 32, ceramic sleeve 33, wherein,
and the optical collimating lens 10 is arranged in the fixed sleeve 20 and is used for integrating the high-divergence light beams into a regular circular light beam to be transmitted.
The fixing sleeve 20 is sleeved on the optical collimating lens 10 at one end, and sleeved on the adapter 31 at the other end and embedded in the optical interface 40.
An adapter 31 is embedded in the fixing sleeve 20 at one end, and embedded in the optical interface 40 at the other end and externally sleeved on the ceramic sleeve 33.
The ceramic sleeve 33 is embedded in the adapter 31, and the ceramic sleeve 33 is sleeved on the optical fiber ferrule 32.
And an optical fiber ferrule 32 inserted into the ceramic sleeve 33 for fixing an optical fiber.
An optical interface 40, one end of which is sleeved on the fixing sleeve 20 and the middle of which is sleeved on the adapter 31.
The working principle of the optical alignment positioning device is as follows:
step S201: welding the adapter 31 with the ceramic sleeve 33, and fixedly packaging the adapter and the optical interface 40 into a packaging body;
step S202: integrally packaging the fixed sleeve 20 and the package body completed in the step S201 to form an optical fiber ferrule positioning structure, and inserting the optical fiber ferrule 32 into the molded positioning structure;
step S203: placing the optical collimating lens 10 into the fixed sleeve 20, and horizontally adjusting the optical collimating lens 10 along the optical axis to collimate the light beam;
step S204: after the specified light spot is observed, the optical collimating lens 10 is fixed through a thread;
step S205: and packaging the step S202 and the step S204 to finish optical alignment.
The optical alignment positioning device provided by this embodiment uses the fixing sleeve 20 to connect the optical alignment lens 10 and the adapter 31, the adapter 31 is externally sleeved on the ceramic sleeve 33, the optical fiber ferrule 32 is inserted into the ceramic sleeve 33, the fixing sleeve 20 realizes the coupling encapsulation of the optical alignment lens 10 and the optical fiber ferrule 32, the device is separated from the six-dimensional fine tuning frame in the prior art for simulation, the integrated encapsulation can be realized, the product consistency is greatly improved, the cost is reduced, and the volume of the encapsulation tube shell is reduced, meanwhile, the fixing sleeve 20 is connected with the optical alignment lens 10 and the adapter 31, the device replaces the pure mechanical positioning hole used in the prior art to install the optical alignment lens 10 and the adapter 31, and the reduction of the coupling efficiency caused by misalignment is avoided.
The optical alignment positioning device provided by the embodiment can be applied to products such as laser radars, laser ranging and laser pens relating to laser detection technology.
In some embodiments, as shown in fig. 3, the ceramic sleeve 33 is an open ceramic sleeve, and the optical fiber connector 30 further includes a sleeve body 34, wherein one end of the sleeve body 34 is embedded in the ceramic sleeve 33, and the other end is embedded in the adapter 31. As shown in FIG. 4, the ceramic sleeve has a notch with a C-shaped cross section. The opening ceramic sleeve has certain flexibility, the requirements on the machining tolerance and the butt joint concentricity deviation between parts are not high, the problem that the optical collimation efficiency is reduced due to the machining tolerance and the butt joint concentricity deviation between the parts can be avoided, the light beam after collimation has smaller light spot and more concentrated energy, and the requirements on the light beam can be better met.
In some embodiments, the fiber stub 32 is preferably a ferrule. The ceramic inserting core is a cylinder precisely centered in the optical fiber movable connector plug, and a micropore is arranged in the center of the ceramic inserting core and used for fixing an optical fiber. The ceramic ferrule has the following characteristics: 1. ensuring the butt joint of two optical fibers, wherein the single mode requires that the axial deviation is less than 1um, and the multi-mode requires that the axial deviation is less than 4 um; 2. the product is wear-resistant and can be repeatedly inserted and pulled; 3. the end is easy to process and can be ground into a spherical surface and an inclined spherical surface; 4. the product is anti-aging, and the service life is more than 30 years; 5. the material has small coefficient of expansion with heat and contraction with cold and strong environmental adaptability.
In some embodiments, the optical interface 40 is an FC-type optical fiber connector interface (also called round-head optical fiber connector interface), an SC-type optical fiber connector interface (also called square optical fiber connector interface), an ST-type optical fiber connector interface (also called snap-in round optical fiber connector interface), an LC-type optical fiber connector interface (also called snap-in square optical fiber connector interface), an MT-RJ-type optical fiber connector interface (also called snap-in conversion-standard receptacle optical fiber connector interface), or an MU-type optical fiber connector interface (MU connector is the smallest single-core optical fiber connector developed by NTT based on the SC-type connector which is most used currently).
In some embodiments, in order to fix the optical collimating lens 10 after optical collimating is completed, the end of the fixing sleeve 20 that is sleeved on the optical collimating lens 10 is provided with threads for screwing with external threads. After optical alignment is completed, the optical alignment lens 10 is fixed by screwing threads into the fixing sleeve 20 to hold the optical alignment lens 10.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (8)
1. An optical alignment fixture, comprising: optical collimating lens, fixed sleeve, optical interface, fiber connector includes adapter, optic fibre lock pin, wherein:
an optical collimating lens built into the fixed sleeve;
one end of the fixed sleeve is sleeved outside the optical collimating lens, and the other end of the fixed sleeve is sleeved outside the adapter;
one end of the adapter is embedded in the fixed sleeve, and the other end of the adapter is sleeved on the optical fiber insertion core;
and the optical fiber inserting core is inserted into the adapter.
2. The optical alignment fixture of claim 1 further comprising an optical interface, the optical interface having one end that fits over the mounting sleeve and a middle that fits over the adapter.
3. The optical alignment fixture of claim 1 wherein the fiber optic connector further comprises a ceramic sleeve embedded in the adapter, the ceramic sleeve externally covering the fiber stub.
4. An optical alignment fixture as claimed in claim 3 wherein said ceramic sleeve is an open ceramic sleeve and said fiber optic connector further comprises a sleeve body having one end embedded in said ceramic sleeve and the other end embedded in said adapter.
5. An optical collimating positioning device as in claim 4, wherein said split ceramic sleeve has a split with a C-shaped cross-section.
6. An optically aligned positioning device according to claim 1 wherein said fiber stub is a ferrule.
7. An optically aligned positioning device according to claim 1 wherein said optical interface is an FC-type optical fiber active connector interface, or an MU-type optical fiber active connector interface, or an SC-type optical fiber active connector interface, or an ST-type optical fiber active connector interface, or an LC-type optical fiber active connector interface, or an MT-RJ-type optical fiber active connector interface.
8. An optical collimating positioning device as in claim 1, wherein the end of the fixing sleeve that fits over the optical collimating lens is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021440533.9U CN213091933U (en) | 2020-07-20 | 2020-07-20 | Optical alignment positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021440533.9U CN213091933U (en) | 2020-07-20 | 2020-07-20 | Optical alignment positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213091933U true CN213091933U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021440533.9U Active CN213091933U (en) | 2020-07-20 | 2020-07-20 | Optical alignment positioning device |
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| CN (1) | CN213091933U (en) |
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- 2020-07-20 CN CN202021440533.9U patent/CN213091933U/en active Active
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