CN201583716U - Collimation lens positioning mechanism - Google Patents
Collimation lens positioning mechanism Download PDFInfo
- Publication number
- CN201583716U CN201583716U CN 200920277741 CN200920277741U CN201583716U CN 201583716 U CN201583716 U CN 201583716U CN 200920277741 CN200920277741 CN 200920277741 CN 200920277741 U CN200920277741 U CN 200920277741U CN 201583716 U CN201583716 U CN 201583716U
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- China
- Prior art keywords
- lens
- collimation lens
- collimation
- fibre
- lens mount
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a collimation lens positioning mechanism. A collimation lens is arranged at one end of a lens seat, one end of an optical fiber joint penetrates through the inside of the lens seat, the connecting position of the lens seat with the optical fiber joint is a conical surface structure, a plurality of thin grooves are evenly distributed on the surface of the conical surface structure, the outer side of the lens seat is provided with a positioning nut which can rotate, the collimation lens is arranged in a lens washer, and the collimation lens and the lens washer are both arranged on the inner side of the lens seat. The collimation lens positioning mechanism has simple and reasonable structural design, and can effectively solve the problem of inaccurate positioning of an existing lens seat and a collimation lens through a positioning nut and the lens washer. When in screwing up the positioning nut, the lens seat can be simultaneously taken up, the automatic positioning of the lens seat and the optical fiber joint can be achieved, and the concentricity of the lens seat and the optical fiber joint can be guaranteed, the position of the collimation lens can not be deviated through the lens washer, and the positioning of a curved surface portion is more accurate.
Description
Technical field
The utility model belongs to the optic analytical instrument field, particularly a kind of lens position mechanism, especially a kind of collimation lens detent mechanism that is used for the immersion fibre-optical probe.
Background technology
At present, domestic and international existing immersion fibre-optical probe often directly is bonded at collimation lens on the metal lens seat, is installed on the fibre-optical splice by engage thread again.
Fig. 1 is the sectional view of existing collimation lens detent mechanism, utilizes thread connecting mode to guarantee the consistance of collimation lens 1 optical axis and optical fiber 4 optical axises between lens mount 2 and the fibre-optical splice 3.Adopt this kind connected mode to make easily between lens mount 2 and the fibre-optical splice 3 and thread pitch occurs, make the inaccurate fluctuation that causes the optical fiber integrally performance in location of lens mount.In addition, because the curvature portion of existing collimation lens 1 directly is bonded on the lens mount 2, curvature portion is difficult for accurately location, will cause in the adhesive curing process, offset, finally cause owing to the inconsistent global index difference that causes in collimation lens 1 location is bigger, thereby have a strong impact on the Installation and Debugging work of complete machine.
The utility model content
At the weak point that exists in the above-mentioned technology, the utility model provides a kind of and solves existing lens mount and collimation lens is located inaccurate a kind of collimation lens detent mechanism.
For achieving the above object, the utility model provides a kind of collimation lens detent mechanism, comprise collimation lens, lens mount and fibre-optical splice, described collimation lens is arranged at an end of described lens mount, one end of described fibre-optical splice is arranged in the inside of described lens mount, be provided with the setscrew nut that can rotate in the outside of described lens mount, be provided with the lens packing ring at the edge of described collimation lens.
The part that described lens mount is connected with described fibre-optical splice is a cone structure, is evenly distributed with a plurality of strias on the surface of described cone structure.
Described setscrew nut is made of threaded portion and tapering part, and described tapering part is arranged at a side of described threaded portion.
Described lens packing ring is arranged at the inboard of described lens mount.
Described collimation lens is arranged at the inside of described lens packing ring.
The inner surface of described lens mount and described fibre-optical splice wear spacing between the outer surface of end less than 0.1mm.
The inside of described fibre-optical splice is provided with optical fiber.
Compared with prior art, the utlity model has following advantage:
The collimation lens detent mechanism that the utility model provides, comprise collimation lens, lens mount and fibre-optical splice, wherein, collimation lens is arranged at an end of lens mount, one end of fibre-optical splice then is arranged in the inside of lens mount, the part that lens mount is connected with fibre-optical splice is a cone structure, and the surface of this cone structure is evenly distributed with a plurality of strias, is provided with the setscrew nut that can rotate in the outside of lens mount; Collimation lens is arranged at the inside of lens packing ring, and collimation lens and lens packing ring all are arranged at the lens mount inboard.The utility model project organization advantages of simple makes installation process simpler, and in batches the consistance of assembling is better, can effectively solve by setscrew nut and lens packing ring and have lens mount now and collimation lens is located inaccurate problem.Lens mount also can be tightened up simultaneously when screwing setscrew nut, can realize the automatic location of lens mount and fibre-optical splice, and guarantees concentricity between the two; By the position of collimation lens can be offset, that the curvature portion location of collimation lens is more accurate.
Description of drawings
Fig. 1 is the sectional view of existing collimation lens detent mechanism;
Fig. 2 is a sectional view of the present utility model.
The main element symbol description is as follows:
1 collimation lens, 2 lens mounts
3 fibre-optical splices, 4 optical fiber
5 setscrew nuts, 6 lens packing rings
7 threaded portions, 8 tapering parts
Embodiment
For clearer statement the utility model, the utility model will be further described below in conjunction with accompanying drawing.
As shown in Figure 2, the utility model provides a kind of collimation lens detent mechanism, comprises collimation lens 1, lens mount 2 and fibre-optical splice 3, is provided with optical fiber 4 in the inside of fibre-optical splice 3.One end of fibre-optical splice 3 is arranged in the inside of lens mount 2, and the inner surface of lens mount and fibre-optical splice wear spacing between the outer surface of end less than 0.1mm.The part that lens mount 2 is connected with fibre-optical splice 3 is cone structure (not describing among the figure), is evenly distributed with a plurality of strias (not describing among the figure) on the surface of this cone structure.Be provided with the setscrew nut 5 that can rotate in the outside of lens mount 2, this setscrew nut 5 is made of threaded portion 7 and tapering part 8, and tapering part 8 is arranged at a side of threaded portion 7.The conical surface of lens mount 2 part also can be tightened up simultaneously when setscrew nut 5 screws, to realize closely cooperating of lens mount 2 and fibre-optical splice 3.Inboard at lens mount 2 also is pasted with lens packing ring 6, and this lens packing ring 6 is also adopted in the method for paste and is connected with the edge of collimation lens 1, and collimation lens 1 is arranged at its inboard, thereby collimation lens 1 is arranged at an end inside of lens mount 2.
The utility model has been cancelled the screw-type syndeton between existing fiber joint 3 and the lens mount 2, utilize the cylindrical locator meams that adopts the hole shaft type between fibre-optical splice 3 and the lens mount 2, make between the two gap less than 0.1mm, also limited verticality simultaneously, made both verticality all reach 0.025mm.Because it is cone structure that lens mount 2 is fixed in the part of fibre-optical splice 3, and on cone structure, be evenly distributed with a plurality of strias, therefore, when rotational positioning nut 5, the conical surface part of lens mount 2 also can be tightened up simultaneously, and with closely cooperating of fibre-optical splice 3, realize the self-centering of lens mount 2 and fibre-optical splice 3, guarantee concentricity.
In addition, in existing collimation lens detent mechanism, because the curvature portion of collimation lens 1 is directly to be bonded on the lens mount 2, curvature portion is difficult for accurately location, will cause in the adhesive curing process, offset finally causes the global index difference that causes owing to lens position is inconsistent bigger, thereby has a strong impact on the Installation and Debugging work of complete machine.Therefore, the utility model has increased lens packing ring 6 in the inboard of lens mount 2, and the planar section of collimation lens 1 is bonded in earlier on the lens packing ring 6, again lens packing ring 6 is bonded on the lens mount 2, to realize plane positioning, make installation process simpler, the consistance of assembling is better in batches.
More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (7)
1. collimation lens detent mechanism, comprise collimation lens, lens mount and fibre-optical splice, described collimation lens is arranged at an end of described lens mount, it is characterized in that, one end of described fibre-optical splice is arranged in the inside of described lens mount, be provided with the setscrew nut that can rotate in the outside of described lens mount, be provided with the lens packing ring at the edge of described collimation lens.
2. a kind of collimation lens detent mechanism as claimed in claim 1 is characterized in that the part that described lens mount is connected with described fibre-optical splice is a cone structure, is evenly distributed with a plurality of strias on the surface of described cone structure.
3. a kind of collimation lens detent mechanism as claimed in claim 1 is characterized in that described setscrew nut is made of threaded portion and tapering part, and described tapering part is arranged at a side of described threaded portion.
4. a kind of collimation lens detent mechanism as claimed in claim 1 is characterized in that described lens packing ring is arranged at the inboard of described lens mount.
5. a kind of collimation lens detent mechanism as claimed in claim 1 is characterized in that described collimation lens is arranged at the inside of described lens packing ring.
6. a kind of collimation lens detent mechanism as claimed in claim 1 is characterized in that, the inner surface of described lens mount and described fibre-optical splice wear spacing between the outer surface of end less than 0.1mm.
7. a kind of collimation lens detent mechanism as claimed in claim 1 or 2 is characterized in that the inside of described fibre-optical splice is provided with optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277741 CN201583716U (en) | 2009-12-03 | 2009-12-03 | Collimation lens positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277741 CN201583716U (en) | 2009-12-03 | 2009-12-03 | Collimation lens positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583716U true CN201583716U (en) | 2010-09-15 |
Family
ID=42725723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920277741 Expired - Lifetime CN201583716U (en) | 2009-12-03 | 2009-12-03 | Collimation lens positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583716U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914839A (en) * | 2012-11-13 | 2013-02-06 | 南通昱品通信科技有限公司 | Framework type optical fiber ribbon cable feeding-trough device |
| CN105652383A (en) * | 2016-03-10 | 2016-06-08 | 苏州伽蓝致远电子科技股份有限公司 | Optical fiber collimator |
| CN110082879A (en) * | 2019-04-12 | 2019-08-02 | 武汉大学 | A kind of caliberating device of quick positioning collimation lens and calibration beam direction |
-
2009
- 2009-12-03 CN CN 200920277741 patent/CN201583716U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914839A (en) * | 2012-11-13 | 2013-02-06 | 南通昱品通信科技有限公司 | Framework type optical fiber ribbon cable feeding-trough device |
| CN105652383A (en) * | 2016-03-10 | 2016-06-08 | 苏州伽蓝致远电子科技股份有限公司 | Optical fiber collimator |
| CN110082879A (en) * | 2019-04-12 | 2019-08-02 | 武汉大学 | A kind of caliberating device of quick positioning collimation lens and calibration beam direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |