CN116381861A - Optical fiber attenuator with continuously adjustable light intensity - Google Patents
Optical fiber attenuator with continuously adjustable light intensity Download PDFInfo
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- CN116381861A CN116381861A CN202310354734.9A CN202310354734A CN116381861A CN 116381861 A CN116381861 A CN 116381861A CN 202310354734 A CN202310354734 A CN 202310354734A CN 116381861 A CN116381861 A CN 116381861A
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- bin
- light intensity
- adjusting
- optical fiber
- limiting
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
- G02B6/266—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting the optical element being an attenuator
Abstract
The invention and the technical field of communication engineering, disclose the continuously adjustable optic fibre attenuator of light intensity, including the body, the external surface of the tank body has rectangular grooves and spiral lines sequentially from left to right, the internal intermediate position of body has annular grooves, the annular groove has regulating members internally, the regulating members are used for regulating the light intensity of the junction of optic fibre, there are locating members in the right side of body, there are regulating mechanisms and stop mechanisms sequentially from right to left between rectangular grooves and spiral lines, the regulating mechanisms are used for regulating the light intensity of the junction of optic fibre in the body and regulating the optic fibre to position, the stop mechanism is used for cooperating the regulating mechanisms to fix the light intensity; the invention can position the optical fiber and continuously adjust the light intensity by arranging the adjusting and controlling bin, the adjusting piece and the positioning piece, can fix the light intensity after the light intensity is adjusted, and has the advantages of reasonable structure, simple operation, good positioning effect and the like.
Description
Technical Field
The invention relates to the technical field of communication engineering, in particular to an optical fiber attenuator with continuously adjustable light intensity.
Background
An optical fiber attenuator is an optical device that can reduce the energy of an optical signal. The optical fiber attenuator is used for attenuating the input optical power, avoids distortion generated by an optical receiver due to the ultra-strong input optical power, and has the advantages that the model of the existing optical fiber attenuator is basically fixed, so that the light intensity is also fixed and the continuous adjustment cannot be performed. Therefore, we have invented a fiber attenuator with continuously adjustable light intensity to solve such problems.
Disclosure of Invention
The invention provides an optical fiber attenuator with continuously adjustable light intensity, which solves the technical problem that the optical fiber attenuator in the related art has fixed light intensity and cannot be continuously adjusted.
The invention provides an optical fiber attenuator with continuously adjustable light intensity, which comprises a tube body, wherein a rectangular groove and a spiral line are sequentially arranged on the outer surface of the tube body from left to right, the rectangular groove and the spiral line are arranged at intervals, an annular groove is arranged at the middle position inside the tube body, an adjusting piece is arranged inside the annular groove and is used for adjusting the light intensity of an optical fiber connection part, the opening at the right side of the tube body is arranged in a wide opening, a positioning piece is arranged inside the wide opening and is used for positioning the section of the optical fiber, a regulating mechanism and a limiting mechanism are sequentially arranged between the rectangular groove and the spiral line from right to left, the regulating mechanism is used for regulating the light intensity of the optical fiber connection part inside the tube body and regulating the positioning of the optical fiber, and the limiting mechanism is used for being matched with the regulating mechanism to fix the light intensity.
Further: the regulating piece is an air bag, the regulating piece is movably embedded in a groove in the tank body, the inner side surface of the regulating piece is flush with the inner wall of the pipe body, and the axis of the regulating piece is coincident with the axis of the pipe body.
Further: the locating piece is a rubber ring, the inside of the ring is hollow, and the axis of the ring is coincident with the axis of the pipe body.
Further: the diameter of the left end pipeline inside the pipe body is smaller than that of the right end pipeline, the joint of the two sections of pipelines is arc-shaped, and the locating piece is arranged at the joint of the two sections of pipelines.
Further: the regulating mechanism comprises a regulating bin, the regulating bin is fixedly sleeved on the outer surface of the pipe body, a sealing ring is movably sleeved on the outer surface of the regulating bin, two partition plates are fixedly installed inside the regulating bin, the regulating bin is divided into a closed regulating cavity and a locating cavity by the partition plates, the regulating cavity is communicated with a locating piece through an air passage formed in the regulating cavity, the locating cavity is communicated with the locating piece through a connecting pipe, a first push plate is movably installed inside the regulating cavity, a second push plate is movably installed inside the locating cavity, the first push plate is connected with the pipe body through a limiting mechanism, a slide way is formed in the side wall of the regulating bin corresponding to the position of the locating cavity, the second push plate penetrates through the slide way to be fixedly connected with the inner wall of the sealing ring, and the second push plate is in sliding connection with the side wall of the slide way.
Further: the air flue and the connecting pipe are respectively positioned at the left side and the right side of the partition plate in the two cavities, namely the tail ends of the motion tracks of the two pushing plates, and the connecting pipe is arranged inside the pipe body in an embedded mode.
Further: the width of the push plate needs to be slightly larger than the diameter of the air passage and the connecting pipe.
Further: the limiting mechanism comprises a limiting bin, the right side of the limiting bin is rotationally connected with the left side of the regulating bin, the limiting bin is movably sleeved on the outer surface of the pipe body, a push plate I is fixedly arranged on the right side wall of the limiting bin, a plurality of clamping blocks are fixedly arranged in the limiting bin and are distributed in a circumferential array, the inner side of the limiting bin is in an opening shape, a limiting block is arranged in a rectangular groove of the pipe body in a position corresponding to the limiting bin, the limiting block is arranged on the sliding block, the sliding block is in sliding connection with the inner wall of the rectangular groove of the pipe body, and a touch control mechanism is arranged on the sliding block.
Further: the contact surface of the clamping block and the limiting block is a chamfer surface, the clamping block and the limiting block are matched with each other, and the clamping block is in sliding connection with the limiting block.
Further: the touch mechanism comprises a button and a spring, the button is fixedly arranged on the top surface of the sliding block, the button is positioned outside the limiting bin, and the spring is arranged between the bottom surface of the sliding block and the bottom surface of the rectangular groove of the pipe body.
The invention has the beneficial effects that: the invention can position the optical fiber and continuously adjust the light intensity by arranging the adjusting and controlling bin, the adjusting piece and the positioning piece, and can fix the light intensity after the light intensity is adjusted by arranging the limiting mechanism.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of the structure of the regulating bin of the invention;
fig. 5 is a schematic view of the structure of the spacing bin of the invention.
In the figure: 100. a tube body; 101. spiral lines; 102. an adjusting member; 103. a positioning piece; 200. a regulating mechanism; 210. regulating and controlling a bin; 211. a seal ring; 212. a partition plate; 213. a regulating chamber; 214. a positioning cavity; 215. a connecting pipe; 216. a first push plate; 217. a second push plate; 300. a limiting mechanism; 310. a limit bin; 311. a clamping block; 312. a limiting block; 313. a slide block; 400. a touch control mechanism; 410. a button; 411. and (3) a spring.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be appreciated that these embodiments are discussed only to enable a person skilled in the art to better understand and thereby practice the subject matter described herein, and are not limiting of the scope, applicability, or examples set forth in the description. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure as set forth in the specification. Various examples may omit, replace, or add various procedures or components as desired. In addition, features described with respect to some examples may be combined in other examples as well.
Example 1
As shown in fig. 1-5, in this embodiment, an optical fiber attenuator with continuously adjustable light intensity is provided, including a tube body 100, a rectangular groove and a spiral line 101 are sequentially disposed on the outer surface of the tank body from left to right, the groove and the spiral line 101 are disposed at intervals, an annular groove is disposed in the middle position inside the tube body 100, an adjusting member 102 is disposed inside the annular groove, the adjusting member 102 is used for adjusting the light intensity of the optical fiber connection, the opening on the right side of the tube body 100 is disposed in a wide-mouth manner, a positioning member 103 is disposed inside the wide-mouth portion, the positioning member 103 is used for positioning the section of the optical fiber, a regulating mechanism 200 and a limiting mechanism 300 are sequentially disposed between the rectangular groove and the spiral line 101 from right to left, the regulating mechanism 200 is used for regulating the light intensity of the optical fiber connection inside the tube body 100 and for regulating the optical fiber positioning, and the limiting mechanism 300 is used for fixing the light intensity in cooperation with the regulating mechanism 200.
The adjusting piece 102 is an air bag, the adjusting piece 102 is movably embedded in a groove in the tank body, the inner side surface of the adjusting piece 102 is flush with the inner wall of the pipe body 100, and the axis of the adjusting piece 102 coincides with the axis of the pipe body 100.
The positioning piece 103 is a rubber ring, the inside of the ring is hollow, and the axis of the ring coincides with the axis of the pipe body 100.
The diameter of the left end pipeline inside the pipe body 100 is smaller than that of the right end pipeline, the pipe body 100 is provided with an arc-shaped connecting part of two sections of pipelines, and the positioning piece 103 is arranged at the connecting part of the two sections of pipelines.
The regulating mechanism 200 comprises a regulating bin 210, the regulating bin 210 is fixedly sleeved on the outer surface of the pipe body 100, a sealing ring 211 is movably sleeved on the outer surface of the regulating bin 210, two partition plates 212 are fixedly installed inside the regulating bin 210, the regulating bin 210 is divided into a sealed regulating cavity 213 and a locating cavity 214 by the partition plates 212, the regulating cavity 213 is communicated with the regulating part 102 through an opened air passage, the locating cavity 214 is communicated with the locating part 103 through a connecting pipe 215, a first push plate 216 is movably installed inside the regulating cavity 213, a second push plate 217 is movably installed inside the locating cavity 214, the first push plate 216 is connected with the pipe body 100 through a limiting mechanism 300, a slide way is formed in the side wall of the regulating bin 210 corresponding to the position of the locating cavity 214, the second push plate 217 penetrates through the slide way and is fixedly connected with the inner wall of the sealing ring 211, and the second push plate 217 is in sliding connection with the side wall of the slide way.
The air passage and the connecting pipe 215 are respectively positioned at the left side and the right side of the partition plate 212 in the two cavities, namely the tail ends of the movement tracks of the two pushing plates, and the connecting pipe 215 is arranged inside the pipe body 100 in an embedded mode.
The width of the push plate needs to be slightly larger than the diameter of the air passage and the connecting tube 215.
The spacing mechanism 300 comprises a spacing bin 310, the right side of the spacing bin 310 is rotationally connected with the left side of the regulation and control bin 210, the spacing bin 310 is movably sleeved on the outer surface of the pipe body 100, the first push plate 216 is fixedly arranged on the right side wall of the spacing bin 310, a plurality of clamping blocks 311 are fixedly arranged in the spacing bin 310, the clamping blocks 311 are distributed in a circumferential array, the inner side of the spacing bin 310 is in an opening shape, a limiting block 312 is arranged in a rectangular groove of the pipe body 100 at a position corresponding to the spacing bin 310, the limiting block 312 is arranged on a sliding block 313, the sliding block 313 is in sliding connection with the inner wall of the rectangular groove of the pipe body 100, and the sliding block 313 is provided with a touch control mechanism 400.
The contact surface of the clamping block 311 and the limiting block 312 is a bevel surface, the clamping block 311 and the limiting block 312 are matched with each other, and the clamping block 311 is in sliding connection with the limiting block 312.
The touch mechanism 400 comprises a button 410 and a spring 411, wherein the button 410 is fixedly arranged on the top surface of the slider 313, the button 410 is positioned outside the limit bin 310, and the spring 411 is arranged between the bottom surface of the slider 313 and the bottom surface of the rectangular groove of the tube body 100.
The working principle of the optical fiber attenuator with continuously adjustable light intensity provided by the embodiment is as follows, when in operation, one optical fiber is inserted into a pipeline inside the pipe body 100 from the left side of the pipe body 100, then the optical fiber is fixed, so that the axis of the optical fiber coincides with the axis of the pipe body 100, and after the optical fiber is fixed, the other optical fiber can be connected;
at this time, another optical fiber is inserted from the wide-mouth position on the right side of the pipe body 100, so that the section of the optical fiber is just flush with the right side surface of the adjusting piece 102, then the sealing ring 211 is rotated, the sealing ring 211 rotates to drive the second push plate 217 to move towards the pipe orifice of the connecting pipe 215 in the positioning cavity 214, at this time, the second push plate 217 moves to compress the space in the positioning cavity 214, at this time, air in the positioning cavity 214 is compressed, gas is pushed into the positioning piece 103 through the connecting pipe 215, at this time, the air pressure component in the positioning piece 103 is increased, so that the positioning piece 103 expands, and when the optical fiber contacts with the outer wall of the optical fiber, the optical fiber clamping column is used for enabling the axis of the optical fiber to coincide with the axis of the pipe body 100, so that the sections of the two optical fibers are aligned, and thus a positioning effect is achieved;
after the two optical fibers are aligned, the limiting bin 310 is rotated at the moment, the limiting bin 310 rotates to drive the first push plate 216 to synchronously move, so that the first push plate 216 slides towards the air passage, at the moment, the first push plate 216 moves to adjust the space inside the cavity 213, at the moment, air inside the cavity 213 is compressed, air is pushed into the adjusting piece 102 through the air passage, at the moment, the air pressure component inside the adjusting piece 102 is increased, the adjusting piece 102 is expanded, the pipe space at the joint of the two optical fibers is compressed by the expansion of the adjusting piece 102, the scattering intensity of light in the air is reduced, and along with the continuous reciprocating rotation of the limiting bin 310, the expansion and the contraction of the adjusting piece 102 can be regulated, so that the aim of continuously adjusting the light intensity is achieved;
meanwhile, when the adjusting cavity 213 is contracted by rotating the limiting bin 310, the limiting block 312 slides on the surface of the clamping block 311, the clamping block 311 cannot clamp the limiting block 312 at the moment, after the light intensity is adjusted, the limiting block 311 clamps the limiting block 312, the limiting bin 310 cannot rotate reversely, the adjusting piece 102 is placed to shrink, the light intensity is changed, when the light intensity needs to be increased, only the button 410 is needed to be pressed, the button 410 drives the sliding block 313 to slide downwards, so that the limiting block 312 is driven to move synchronously, the limiting block 312 is separated from the clamping block 311, the limiting bin 310 can rotate reversely, and the light intensity can be adjusted again.
The embodiment of the present embodiment has been described above with reference to the accompanying drawings, but the embodiment is not limited to the above-described specific implementation, which is merely illustrative and not restrictive, and many forms can be made by those of ordinary skill in the art without departing from the spirit and scope of the embodiment and fall within the protection of the embodiment.
Claims (10)
1. The utility model provides a continuous adjustable optic fibre attenuator of light intensity, including body (100), its characterized in that, the surface of jar body has from left to right set gradually rectangle recess and spiral line (101), the interval sets up between recess and the spiral line (101), annular groove has been seted up to the inside intermediate position of body (100), annular groove inside is provided with regulating part (102), regulating part (102) are used for adjusting the light intensity of optic fibre junction, the right side opening part of body (100) is wide-mouth setting, wide-mouth inside is provided with setting element (103), setting element (103) are used for the cross-section of location optic fibre, regulation and control mechanism (200) and stop gear (300) have been set gradually from right to left between rectangle recess and the spiral line (101), regulation and control mechanism (200) are used for adjusting the light intensity of optic fibre junction in body (100) and adjusting the optic fibre location, stop gear (300) are used for the cooperation regulation and control mechanism (200) to fix the light intensity.
2. The optical fiber attenuator with continuously adjustable light intensity according to claim 1, wherein the adjusting member (102) is an air bag, the adjusting member (102) is movably embedded in a groove in the tank body, the inner side surface of the adjusting member (102) is flush with the inner wall of the pipe body (100), and the axis of the adjusting member (102) coincides with the axis of the pipe body (100).
3. The optical fiber attenuator with continuously adjustable light intensity according to claim 1, wherein the positioning member (103) is a rubber ring, the inside of the ring is hollow, and the axis of the ring coincides with the axis of the tube body (100).
4. A continuously adjustable optical fiber attenuator according to claim 3, wherein the diameter of the left end pipe inside the pipe body (100) is smaller than that of the right end pipe body (100), the joint of the two pipes is arc-shaped, and the positioning member (103) is installed at the joint of the two pipes.
5. The optical fiber attenuator according to claim 1, wherein the adjusting mechanism (200) comprises an adjusting bin (210), the adjusting bin (210) is fixedly sleeved on the outer surface of the pipe body (100), a sealing ring (211) is movably sleeved on the outer surface of the adjusting bin (210), two partition plates (212) are fixedly installed inside the adjusting bin (210), the partition plates (212) divide the adjusting bin (210) into a sealed adjusting cavity (213) and a positioning cavity (214), the adjusting cavity (213) is communicated with the adjusting piece (102) through an opened air passage, the positioning cavity (214) is communicated with the positioning piece (103) through a connecting pipe (215), a first push plate (216) is movably installed inside the adjusting cavity (213), a second push plate (217) is movably installed inside the positioning cavity (214), the first push plate (216) is connected with the pipe body (100) through a limiting mechanism (300), a slide way is formed in the side wall of the adjusting bin (210) corresponding to the positioning cavity (214), the second push plate (217) is fixedly connected with the inner wall of the sealing ring (211), and the second push plate (217) is in sliding connection with the side wall.
6. The optical fiber attenuator according to claim 5, wherein the air passage and the connecting pipe (215) are respectively located at the left and right sides of the partition plate (212) in the two cavities, that is, at the ends of the movement tracks of the two pushing plates, and the connecting pipe (215) is arranged inside the pipe body (100) in an inlaid manner.
7. The continuously adjustable optical fiber attenuator according to claim 6, wherein the width of the push plate is slightly larger than the diameter of the air passage and the connecting tube (215).
8. The optical fiber attenuator with continuously adjustable light intensity according to claim 5, wherein the limiting mechanism (300) comprises a limiting bin (310), the right side of the limiting bin (310) is rotationally connected with the left side of the regulating bin (210), the limiting bin (310) is movably sleeved on the outer surface of the pipe body (100), the first push plate (216) is fixedly arranged on the right side wall of the limiting bin (310), a plurality of clamping blocks (311) are fixedly arranged in the limiting bin (310), the clamping blocks (311) are distributed in a circumferential array, the inner side of the limiting bin (310) is in an opening shape, a limiting block (312) is arranged in a rectangular groove of the pipe body (100) at a position corresponding to the limiting bin (310), the limiting block (312) is arranged on the sliding block (313), the sliding block (313) is in sliding connection with the inner wall of the rectangular groove of the pipe body (100), and the sliding block (313) is provided with the touch mechanism (400).
9. The optical fiber attenuator with continuously adjustable light intensity according to claim 8, wherein the contact surface of the clamping block (311) and the limiting block (312) is a chamfer surface, the clamping block (311) and the limiting block (312) are mutually matched, and the clamping block (311) and the limiting block (312) are in sliding connection.
10. The optical fiber attenuator according to claim 9, wherein the touch control mechanism (400) comprises a button (410) and a spring (411), the button (410) is fixedly installed on the top surface of the slider (313), the button (410) is located outside the limit bin (310), and the spring (411) is installed between the bottom surface of the slider (313) and the bottom surface of the rectangular groove of the tube body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310354734.9A CN116381861B (en) | 2023-04-04 | 2023-04-04 | Optical fiber attenuator with continuously adjustable light intensity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310354734.9A CN116381861B (en) | 2023-04-04 | 2023-04-04 | Optical fiber attenuator with continuously adjustable light intensity |
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| Publication Number | Publication Date |
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| CN116381861A true CN116381861A (en) | 2023-07-04 |
| CN116381861B CN116381861B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310354734.9A Active CN116381861B (en) | 2023-04-04 | 2023-04-04 | Optical fiber attenuator with continuously adjustable light intensity |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117388983A (en) * | 2023-10-18 | 2024-01-12 | 青岛歌尔智能传感器有限公司 | Optical fiber attenuator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5367159A (en) * | 1992-08-25 | 1994-11-22 | Methode Electronics, Inc. | Optical loopback tester with air gap attenuator |
| CN2522903Y (en) * | 2001-11-23 | 2002-11-27 | 鸿富锦精密工业（深圳）有限公司 | Photo adaptor with attenuation function |
| US6501900B1 (en) * | 2000-02-17 | 2002-12-31 | Fitel Usa Corp. | Variable optical fiber attenuator device |
| JP2003131147A (en) * | 2001-10-26 | 2003-05-08 | Fujikura Ltd | Variable optical attenuator |
| CN2550806Y (en) * | 2001-12-07 | 2003-05-14 | 鸿富锦精密工业（深圳）有限公司 | Adjustable light attenuator |
| CN201017067Y (en) * | 2007-02-14 | 2008-02-06 | 洪健 | Optical fiber adjustable attenuator |
| KR20190032974A (en) * | 2017-09-20 | 2019-03-28 | 주식회사 현주인테크 | Contolling device of the position of micro optical fiber scanner using air pressure |
| CN110058355A (en) * | 2019-03-19 | 2019-07-26 | 武汉光迅科技股份有限公司 | A kind of automatic coupling device and automatic coupling method |
| CN211856983U (en) * | 2020-04-17 | 2020-11-03 | 青岛富伟恒科技有限公司 | Adjustable optical fiber attenuator |
-
2023
- 2023-04-04 CN CN202310354734.9A patent/CN116381861B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5367159A (en) * | 1992-08-25 | 1994-11-22 | Methode Electronics, Inc. | Optical loopback tester with air gap attenuator |
| US6501900B1 (en) * | 2000-02-17 | 2002-12-31 | Fitel Usa Corp. | Variable optical fiber attenuator device |
| JP2003131147A (en) * | 2001-10-26 | 2003-05-08 | Fujikura Ltd | Variable optical attenuator |
| CN2522903Y (en) * | 2001-11-23 | 2002-11-27 | 鸿富锦精密工业（深圳）有限公司 | Photo adaptor with attenuation function |
| CN2550806Y (en) * | 2001-12-07 | 2003-05-14 | 鸿富锦精密工业（深圳）有限公司 | Adjustable light attenuator |
| CN201017067Y (en) * | 2007-02-14 | 2008-02-06 | 洪健 | Optical fiber adjustable attenuator |
| KR20190032974A (en) * | 2017-09-20 | 2019-03-28 | 주식회사 현주인테크 | Contolling device of the position of micro optical fiber scanner using air pressure |
| CN110058355A (en) * | 2019-03-19 | 2019-07-26 | 武汉光迅科技股份有限公司 | A kind of automatic coupling device and automatic coupling method |
| CN211856983U (en) * | 2020-04-17 | 2020-11-03 | 青岛富伟恒科技有限公司 | Adjustable optical fiber attenuator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117388983A (en) * | 2023-10-18 | 2024-01-12 | 青岛歌尔智能传感器有限公司 | Optical fiber attenuator |
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| CN116381861B (en) | 2024-04-30 |
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Effective date of registration: 20240410 Address after: 332000 No.1010 Anping Road, eco industrial city, Lianxi District, Jiujiang City, Jiangxi Province Applicant after: JIANGXI SHANSHUI OPTOELECTRONIC TECHNOLOGY CO.,LTD. Country or region after: China Address before: 511699 Room 210, Floor 2, No. 238, Futian Road, Shijiao Town, Fogang County, Qingyuan, Guangdong Province Applicant before: Xingyi Network Technology (Fogang) Co.,Ltd. Country or region before: China |
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