CN201772991U - Shading device for optical-communication detection instrument - Google Patents
Shading device for optical-communication detection instrument Download PDFInfo
- Publication number
- CN201772991U CN201772991U CN2010201225372U CN201020122537U CN201772991U CN 201772991 U CN201772991 U CN 201772991U CN 2010201225372 U CN2010201225372 U CN 2010201225372U CN 201020122537 U CN201020122537 U CN 201020122537U CN 201772991 U CN201772991 U CN 201772991U
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- optical fiber
- shading
- housing
- shell body
- optical
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Abstract
The utility model provides a shading device for an optical-communication detection instrument. The shading device comprises a first shell body and a second shell body, wherein the first shell body is sleeved at the upper-half part of an optical fiber test end of the optical-communication detection instrument, comprises a first shading cover which is arranged at the upper end of the first shell body and used for covering the optical fiber test end, and a first shading groove which is transversely arranged at the side end of the first shell body and used for covering optical fibers to realize a half-package shading manner; and the second shell body is symmetric to the first shell body; and the first shell body and the second shell body are movably connected with each other by a connecting shaft arranged at the front end of the shell body, so the first shell body and the second shell body can rotate around the connecting shaft, and a full-package shading manner is realized. The shading device for the optical-communication detection instrument effectively avoids influences of external environmental beams on a light sensor in the instrument by changing routes of optical fibers entering or leaving the detection instrument and absorbing involvement beams, and can totally block out outside beams.
Description
Technical field
The present invention relates to a kind of be applied to the optical communication measuring instrument in order to intercepting the device of extraneous light Interference Detection, particularly a kind of by changing optical fiber the path that goes out, goes into measuring instrument and the absorption that involves in light effectively intercepted the shade that be used for optical fiber detector table of the ambient light of outside to the influence of optical sensor in the instrument.
Background technology
The fibre-optical bending that utilizes of prior art is revealed light carries out detection and Identification to fiber-optic signal device, its principle is the result according to and experimental study theoretical to fibre-optical bending, utilize curved fiber and photodetector to form sensor, adopt non-linear amplifying circuit that signal is amplified, thereby realize online detection as hardware support fiber-optic signal with embedded system.Yet, in practice, but have light leak, be subjected to external environment light to influence bigger problem.
The utility model content
Technical problem to be solved in the utility model provides a kind of influence that can effectively reduce extraneous light to the optical sensor in the optical communication measuring instrument, and can intercept the shade that is used for the optical communication measuring instrument of extraneous light fully.
For solving the problems of the technologies described above, the shade that is used for the optical communication measuring instrument of the present utility model includes first housing, this housing is set in the first half of the test optical fiber end of optical communication measuring instrument, its include first shading cover that is installed in its upper end in order to the first shading groove that covers the test optical fiber end and cross at its side in order to cover optical fiber, realize the shading mode of half parcel.
As a kind of preferred version of the present utility model, the described first shading groove is bending along the direction of optical fiber discrepancy test optical fiber end, in order to the travel path of lengthening light in the shading groove.
As a kind of preferred version of the present utility model, the end of the described first shading groove is the first optical fiber gateway that is the groove shape, in order to intercept extraneous light.
As a kind of preferred version of the present utility model, the described first shading groove is downward-sloping with respect to described optical fiber gateway, enters in order to the light of obstruct groove arm port.
As a kind of preferred version of the present utility model, also include second housing symmetrical with described first housing, described first and second housing flexibly connects mutually by the coupling shaft that is installed in described housing front end, makes first and second housing can rotate and realize the shading mode of full parcel around coupling shaft; Described first housing be set in the optical communication measuring instrument the test optical fiber end the first half and described second housing is set in the Lower Half of the test optical fiber end of optical communication measuring instrument.
As a kind of preferred version of the present utility model, described second housing include second shading cover that matches with described first shading cover that is installed in its lower end in order to the second shading boss that matches with the described first shading groove that covers the test optical fiber end and cross at its side in order to cover optical fiber.
As a kind of preferred version of the present utility model, the second optical fiber gateway that be arched door shape of the end of described first shading groove and the described second shading boss for being made of closing line is in order to intercept extraneous light.
As a kind of preferred version of the present utility model, the surface of described first and second housing is black frosted shape, absorb light and to irreflexive ability of light in order to increase it, make its to external world the light of seepage motion device inside absorb as much as possible and disperse, thereby effectively improve light in the inner repeated reflection of device.
As a kind of preferred version of the present utility model, the internal perisporium of described first housing is equipped with the snapping step and is interlockingly connected in order to the test optical fiber end with the optical communication measuring instrument, is convenient to execute-in-place thereby make described housing can be fixed on the optical communication measuring instrument.
As a kind of preferred version of the present utility model, described first shading cover is provided with the reading window, also can make things convenient for reading when guaranteeing shading.
Technique effect of the present utility model is, can increase substantially the accuracy rate of detection, no matter is under the sunlight at sunny noon in summer, still still reaches 100% accuracy rate under the irradiation of torch and high light line; Can solve the test optical fiber needs of kinds such as 2mm, 3mm, 250um, 900um simultaneously, for the optical fiber maintenance personnel at scene provide a reliable detection parameter; And, simple in structure, easy to operate.
Description of drawings
Below in conjunction with accompanying drawing and better embodiment the utility model is described in further detail.
Fig. 1 is the structural representation of first better embodiment of the shade that is used for the optical communication measuring instrument of the present utility model;
Fig. 2 is the floor map of first better embodiment of the shade that is used for the optical communication measuring instrument of the present utility model;
Fig. 3 is the synoptic diagram of first better embodiment under user mode that is used for the shade of optical communication measuring instrument of the present utility model;
Fig. 4 is the structural representation of second better embodiment of the shade that is used for the optical communication measuring instrument of the present utility model;
The synoptic diagram that Fig. 5 a second better embodiment first and second housing under user mode that is used for the shade of optical communication measuring instrument of the present utility model is opened; And
The synoptic diagram that Fig. 5 b second better embodiment first and second housing under user mode that is used for the shade of optical communication measuring instrument of the present utility model closes.
Among the figure:
10, shade first preferred embodiment that is used for the optical communication measuring instrument of the present utility model
11, first housing 12, first shading cover
13, the first shading groove 14, the first optical fiber gateway
15, snapping step 16, reading window
20, shade second preferred embodiment that is used for the optical communication measuring instrument of the present utility model
21, second housing 22, second shading cover
23, the second shading boss 24, the second optical fiber gateway
25, coupling shaft
30, optical fiber
40, optical fiber detector table
Embodiment
As shown in Figure 1 to Figure 3, shade first preferred embodiment 10 that is used for the optical communication measuring instrument of the present utility model includes first housing, this housing is set in the first half of the test optical fiber end of optical fiber detector table 40, its include first shading cover 12 that is installed in its upper end in order to the first shading groove 13 that covers the test optical fiber end and cross at its side in order to covering optical fiber 30, thereby realize the shading mode of half parcel.
The described first shading groove 13 is bending along the direction of optical fiber discrepancy test optical fiber end, in order to the travel path of lengthening light in the shading groove.The end of the first shading groove 13 is the first optical fiber gateway 14 that is the groove shape, in order to intercept extraneous light.The first shading groove 13 is downward-sloping with respect to described optical fiber gateway 14, enters in order to the light of obstruct groove arm port.
The internal perisporium of first housing 11 is equipped with snapping step 15 and is interlockingly connected in order to the test optical fiber end with optical fiber detector table 40, is convenient to execute-in-place thereby make described housing 11 can be fixed on the optical fiber detector table 40.
The use of shade first preferred embodiment 10 that is used for the optical communication measuring instrument of the present utility model is as follows:
At first optical fiber 30 is positioned in the optical fiber detector table 40, then shade first preferred embodiment 10 that is used for the optical communication measuring instrument of the present utility model vertically is positioned on the optical fiber detector table 40 and and is interlockingly connected with optical fiber detector table 40 by pushing the snapping step 15 that makes the housing 11 of winning, then optical fiber 30 is pressed in the first shading groove 13, the access lane of optical fiber 30 promptly is limited in just can detecting reading afterwards in the first shading groove 13.
Shown in Fig. 4 to Fig. 5 b, shade first preferred embodiment 20 that is used for the optical communication measuring instrument of the present utility model also includes and the second symmetrical housing 21 of described first housing 11, described first, two housings 11,21 flexibly connect mutually by the coupling shaft 25 that is installed in described housing front end, make and win, two housings 11,21 can rotate around coupling shaft, described first housing be set in the optical communication measuring instrument the test optical fiber end the first half and described second housing is set in the Lower Half of the test optical fiber end of optical communication measuring instrument, thereby realize the shading mode of full parcel.
Described second housing 21 include second shading cover 22 that matches with described first shading cover 12 that is installed in its lower end in order to the second shading boss 23 that matches with the described first shading groove 13 that covers the test optical fiber end and cross at its side in order to cover optical fiber 30.
The described first shading groove 13 is the second optical fiber gateway 24 that is the arched door shape that is made of closing line with the end of the described second shading boss 23, in order to intercept extraneous light.
The use of shade second preferred embodiment 20 that is used for the optical communication measuring instrument of the present utility model is as follows:
At first optical fiber 30 is positioned in the optical fiber detector table 40, then shade second preferred embodiment 20 that is used for the optical communication measuring instrument of the present utility model vertically is positioned on the optical fiber detector table 40 and and is interlockingly connected with optical fiber detector table 40 by pushing the snapping step 15 that makes the housing 11 of winning, optical fiber 30 is pressed in the first shading groove 13, the access lane of optical fiber 30 promptly is limited in the first shading groove 13, then second housing 21 is closed towards optical fiber detector table 40 direction and make and the subsides that offset of the first shading groove 13 of the second shading boss 23 of second housing 21 and first housing 11 just can detect reading afterwards.
The surface of described first and second housing 11,21 is black frosted shape, absorb light and to irreflexive ability of light in order to increase it, make its to external world the light of seepage motion device inside absorb as much as possible and disperse, thereby effectively improve light in the inner repeated reflection of device.
Below preferred embodiment of the present utility model is specified, but the utility model is not limited to described embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the invention spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (10)
1. shade that is used for the optical communication measuring instrument, it is characterized in that: include first housing, this housing is set in the first half of the test optical fiber end of optical communication measuring instrument, its include first shading cover that is installed in its upper end in order to the first shading groove that covers the test optical fiber end and cross at its side in order to cover optical fiber.
2. shade according to claim 1 is characterized in that: the described first shading groove is bending along the direction of optical fiber discrepancy test optical fiber end.
3. shade according to claim 1 is characterized in that: the end of the described first shading groove is the first optical fiber gateway that is the groove shape.
4. according to claim 1,2 or 3 described shades, it is characterized in that: the described first shading groove is downward-sloping with respect to described optical fiber gateway.
5. shade according to claim 4, it is characterized in that: also include second housing symmetrical with described first housing, described first and second housing flexibly connects mutually by the coupling shaft that is installed in described housing front end, described first housing be set in the optical communication measuring instrument the test optical fiber end the first half and described second housing is set in the Lower Half of the test optical fiber end of optical communication measuring instrument.
6. shade according to claim 5 is characterized in that: described second housing include second shading cover that matches with described first shading cover that is installed in its lower end in order to the second shading boss that matches with the described first shading groove that covers the optical fiber front end and cross at its side in order to cover optical fiber.
7. shade according to claim 6 is characterized in that: the second optical fiber gateway that be arched door shape of the end of described first shading groove and the described second shading boss for being made of closing line.
8. shade according to claim 7 is characterized in that: the surface of described first and second housing is black frosted shape.
9. shade according to claim 8 is characterized in that: the internal perisporium of described first housing is equipped with the snapping step and is interlockingly connected in order to the test optical fiber end with the optical communication measuring instrument.
10. shade according to claim 9 is characterized in that: described first shading cover is provided with the reading window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201225372U CN201772991U (en) | 2010-03-04 | 2010-03-04 | Shading device for optical-communication detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201225372U CN201772991U (en) | 2010-03-04 | 2010-03-04 | Shading device for optical-communication detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201772991U true CN201772991U (en) | 2011-03-23 |
Family
ID=43752839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201225372U Expired - Fee Related CN201772991U (en) | 2010-03-04 | 2010-03-04 | Shading device for optical-communication detection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201772991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548755A (en) * | 2016-12-07 | 2017-03-29 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
-
2010
- 2010-03-04 CN CN2010201225372U patent/CN201772991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548755A (en) * | 2016-12-07 | 2017-03-29 | 惠州三华工业有限公司 | Brightness adjust automatically display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20150304 |
|
| EXPY | Termination of patent right or utility model |