CN205608236U - Photonic crystal optic fibre dead axle device - Google Patents
Photonic crystal optic fibre dead axle device Download PDFInfo
- Publication number
- CN205608236U CN205608236U CN201620428504.8U CN201620428504U CN205608236U CN 205608236 U CN205608236 U CN 205608236U CN 201620428504 U CN201620428504 U CN 201620428504U CN 205608236 U CN205608236 U CN 205608236U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- fiber
- dead axle
- photonic crystal
- optic fibre
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The utility model discloses a photonic crystal optic fibre dead axle device, wherein, optic fibre is arranged an optic fibre supporting bench in and is gone up through centre gripping clamping centre gripping, code wheel and circulator are installed respectively by an optic fibre supporting bench, an optic fibre supporting bench, code wheel and circulator are all installed on moving platform, the end that awaits measuring of optic fibre is close to the one end of measuring the light path, the camera position of camera is arranged in to the other end of measuring the light path, the end that awaits measuring of source of illumination's outgoing optical alignment optic fibre, the signal input part of the signal output part of camera and the signal output part host computer of code wheel connects. The utility model discloses an axial position and the rotation angle of real -time supervision optic fibre, help optic fibre select with fixed sensitive axle direction, can find effectively fast the fiber axis that needs to and fix optic fibre to greatly reduce optical fiber sensor's the dead axle degree of difficulty, made things convenient for optical fiber sensor's preparation and correct assembling, in order to obtain accurate data.
Description
Technical field
It is fixed for the photonic crystal fiber of middle application that this utility model relates to a kind of photon crystal optical fiber sensing unit style
Position device, particularly relates to a kind of photonic crystal fiber dead axle device.
Background technology
Photonic crystal fiber i.e. PCF, also known as microstructured optical fibers or honeycomb optical fiber, studies at photonic crystal
On the basis of the novel light fibrous material that grows up.The structure of photonic crystal fiber and traditional fiber are the most not
With, its covering is dispersed with radially periodic arrangement, along the axially extending micropore of optical fiber.By guide-lighting mechanism
Being generally divided into two classes: a class is refractive index conduction type photonic crystal fiber, core district refractive index is high, available complete interior
Reflex mechanism explains the conduction of light；Another kind of is photon band-gap optical fiber, the refractive index tool of its cladding cross section
Well-regulated period profile, core district refractive index is low, and the photonic band gap effects of appearance is positioned at frequency in band gap
Light constrains in fibre core.
Comparing ordinary optic fibre, PCF has many unusual characteristics, when being under pressure, temperature, stress, should
When the extraneous factors such as change affect, its optical characteristics changes, therefore can be as the sensing list of novel sensor
Unit.The kind of PCF is a lot, when being destroyed by the circular symmetry on its cross section, can produce birefringence efficiency,
It is made to have obvious twin shaft tropism.
Typically polarization-maintaining photonic crystal fiber i.e. PM-PCF, is the asymmetric microstructure of diplopore inside it,
Refractive index defines fast and slow axis at the refractive index difference of X, Y-axis two direction and causes biaxially effect, i.e. PM-PCF
There is sensitive axes.When using polarization-maintaining photonic crystal fiber as pressure sensitive cells, owing to internal porous is tied
Structure makes the size of the airport along two orthogonal directions different with arrangement, changes the symmetry of index distribution
Property, when optical fiber by be perpendicular to the sensitive axial pressure of optical fiber horizontal time, fiber birefringence rate produces and substantially becomes
Change so that after it accesses the spectral detection system of rear end, i.e. can obtain extraneous real-time pressure value, this pressure
Whether install closely related when value accuracy and sensor are installed along sensitive axes direction.Axially occur partially when installing
Difference, the pressure stray fiber of applying is sensitive axially necessarily causes measured pressure value to be less than actual value, so,
Optical fiber sensitive direction must be strictly distinguished when preparing fiber-optic pressure sensor unit, could be by optical fiber along sensitive axes
Direction is installed on testee exactly, otherwise will obtain the measurement result of mistake.
Polarization-maintaining photonic crystal fiber is a kind of novel sensing arrangement as pressure sensitive unit, determining of its sensitive axes
Directly affect measurement accuracy to location, the using effect of sensor is had material impact.Due to optical fiber
Dimensional structure own is minimum, common photonic crystal fiber μm Han coat diameter only 250, removes overlay
Rear cladding diameter 125 μm, some extraordinary polarization-maintaining photonic crystal fiber cladding diameter even only has 80 μm, this
Carefully add it as the dead axle of sensing unit and positioning difficulty such as the material of hairline.
The most still lack and photonic crystal fiber can be carried out pinpoint special purpose device or equipment,
So, during photon crystal optical fiber sensing unit style is standby, there is location difficulty, causes photonic crystal fiber
The precision of sensing unit is not enough, Quality Down.
Utility model content
The purpose of this utility model is that provides one to be able to ensure that sensor energy to solve the problems referred to above
Correct installation and pinpoint photonic crystal fiber dead axle device.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of photonic crystal fiber dead axle device, including for by the end face high resolution imaging to be measured of optical fiber
Camera, for the end face visual effect to be measured of described optical fiber being amplified and the optical path of transmission ray, being used for
The lighting source that illuminates for the end to be measured of described optical fiber, for supporting the fiber support platform of described optical fiber, be used for
Clamp the clamping clip of described optical fiber, for rotating the rotator of described optical fiber, for measuring described optical fiber
The code-disc of the anglec of rotation, moving mobile platform and the host computer of described optical fiber for microspur, described optical fiber is placed in
Clamping on described fiber support platform and by described clamping clip, described code-disc and described rotator are respectively mounted
By described fiber support platform, described fiber support platform, described code-disc and described rotator are mounted on described
On mobile platform, the end to be measured of described optical fiber near one end of described optical path, described optical path another
One end is placed in the camera position of described camera, and the emergent light of described lighting source is directed at the end to be measured of described optical fiber,
The signal output part of described camera and the signal output part of described code-disc are by two data line and described host computer
Signal input part connect.
In said structure, optical path is used for the end face visual effect to be measured to optical fiber and amplifies and transmission ray,
It is thus possible to allow the high-definition image of end to be measured of camera shooting optical fiber, user is allowed to understand the axial angle of optical fiber in real time
Degree and exact position；Camera is for by the end face high resolution imaging to be measured of optical fiber, and image-forming information is by upper
The interface of machine displays to the user that；Lighting source is for illuminating for optical path, and its emergent light is irradiated to treat light-metering
Fine end face back reflection returns optical path, and the end end face structure definition to be measured making optical fiber is high；Fiber support platform
For supporting optical fiber, the coefficient of friction of its supporting surface is minimum；Clamping clip, for grip optical fiber, uses routine
Clamp structure such as cross clip, as long as can grip optical fiber；Rotator is used for spin fiber,
Use conventional rotary apparatus, if the timely forward and reverse spin fiber of energy positioning, in rotator
" u "-shaped groove is set, in order to place optical fiber；Code-disc, for measuring the anglec of rotation of optical fiber, turns including circular
Dish and data reading device, be existing equipment, and its rotation angle information is transferred to host computer rear line and shows；
Mobile platform is used for microspur moving fiber, uses conventional more accurate X, Y, Z three-dimensional mobile platform i.e.
Can, the real time data that user shows according to host computer controls mobile platform, makes optical fiber move to correct position；
Host computer is used for the conventional program such as man-machine interaction and operation image process.
Further, in order to improve irradiation brightness when necessary, described photonic crystal fiber dead axle device also includes
For the transmitted light source for described optical path light filling.Transmitted light source is mainly used in optical path light filling, also
Can illuminate to mechanical part.
Preferably, described fiber support platform is the upper surface support platform through smooth treatment, described fiber support
The upper surface of platform is provided with " V " shape groove, and it is interior, described code-disc that described optical fiber is concurrently placed at described " V " shape groove
In " u "-shaped breach and in the " u "-shaped groove of described rotator.
For the ease of the optical fiber that stable installation is longer, described fiber support platform is two and axle at described optical fiber
To direction in tandem, the inner side of two described fiber support platforms is separately installed with an installing plate, two peaces
Between dress plate, axis, described code-disc and described rotator are installed to be coaxially installed on described axis, described rotation
Turn device be connected with described code-disc and described code-disc can be driven to rotate.
As preferably, described camera is all band digital camera；Described optical path is that coaxial-illuminating zoom is same
Heart optical path；Described lighting source is coaxial-illuminating light source and is driven box to drive by coaxial-illuminating.
Specifically, described host computer is computer.
In order to install concentratedly, overall appearance, and in order to facilitate positioning parts after parts installation and debugging complete,
In described photonic crystal fiber dead axle device, other all parts in addition to described host computer are mounted on base plate
On be placed in upper cover.
The beneficial effects of the utility model are:
This utility model, by monitoring axial location and the anglec of rotation of optical fiber in real time, assists optical fiber to select and solid
Determine sensitive axes direction, can fast and effeciently find the optical fiber of needs axially and to be fixed by optical fiber, thus greatly
Reduce the dead axle difficulty of Fibre Optical Sensor, facilitate the making of Fibre Optical Sensor and correct install, to obtain
Accurate data；This utility model is not only applicable to dead axle and the labelling of polarization-maintaining photonic crystal fiber, it may also be used for
Other dead axle work needing to extract the axial polarization maintaining optical fibre of feature or other types optical fiber.
Accompanying drawing explanation
Fig. 1 is the perspective view of photonic crystal fiber dead axle device described in the utility model；
Fig. 2 is the end end face structure for amplifying schematic diagram to be measured of optical fiber described in the utility model；
Fig. 3 is the amagnified partial perspective structural representation of photonic crystal fiber dead axle device described in the utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2 and Figure 3, photonic crystal fiber dead axle device described in the utility model include for
By the camera 1 of the end face high resolution imaging to be measured of optical fiber 12, it is used for the effect of the end face vision to be measured to optical fiber 12
Fruit amplify and transmission ray optical path 2, for for optical fiber 12 end to be measured illuminate lighting source 3,
Transmitted light source 5, for supporting the first fiber support platform 6 and the second fiber support platform 8 of optical fiber 12, be used for
Grip optical fiber 12 clamping clip 11, for spin fiber 12 rotator 14, be used for measuring optical fiber 12
The anglec of rotation code-disc 13, for the mobile platform 9 of microspur moving fiber 12 and host computer 17, at light
The tandem first fiber support platform 6 of axial direction and the second fiber support platform 8 of fine 12 are upper surface warp
Crossing the support platform of smooth treatment, the upper surface of the first fiber support platform 6 and the second fiber support platform 8 is provided with " V "
Shape groove, the inner side of the first fiber support platform 6 is provided with the first installing plate 22, the second fiber support platform 8 interior
Side is provided with the second installing plate 25, is provided with axis (figure between the first installing plate 22 and the second installing plate 25
In not visible), code-disc 13 and rotator 14 are coaxially installed on described axis, rotator 14 and code-disc 13
Connecting and code-disc 13 can be driven to rotate, optical fiber 12 is concurrently placed at the first fiber support platform 6 and the second optical fiber props up
In support platform 8 " V " shape groove, in the " u "-shaped breach of code-disc 13 and in the " u "-shaped groove of rotator 14,
Clamping clip 11 is installed on the first fiber support platform 6 and clamps optical fiber 12, the first fiber support platform 6,
Second fiber support platform 8, code-disc 13 and rotator 14 are mounted on mobile platform 9, treating of optical fiber 12
Survey end is near one end of optical path 2, and the other end of optical path 2 is placed in the camera position of camera 1, adopts
Drive the emergent light of lighting source 3 that box 4 drives to quasi-fiber 12 with coaxial-illuminating light source and by coaxial-illuminating
End to be measured, the signal output part of camera 1 and the signal output part of code-disc 13 are by the first data wire 15 He
Second data wire 16 is connected with the signal input part of host computer 17, and transmitted light source 5 is arranged on transmitted light source and props up
On support platform 10, the emergent light alignment optical path 2 of transmitted light source 5, transmitted light source 5 is mainly used in survey
Amount light path 2 light filling, also can illuminate to mechanical part；Camera 1, optical path 2, lighting source 3, transmission
Light source 5, transmitted light source support platform the 10, first fiber support platform the 6, second fiber support platform 8, rotator
14, code-disc 13 and mobile platform 9 are mounted on base plate 20 being placed in upper cover 19, prevent external force from colliding
Make dislodged parts, and play dust-proof effect.
In said structure, optical fiber 12 is photonic crystal fiber；
Camera 1 uses the FIND-R-SCOPE type all band digital camera of FJW Optical system company,
In order to ensure high accuracy dead axle and the dead axle that realizes under working condition, camera resolution is high, can all band (from
400nm～1600nm) work；Additional universal high speed digital interface module, gathers image and can be real-time transmitted to meter
Calculation machine (notebook)；Additional optical interface and special stand, it is ensured that coaxial with optical path 2 link；
Optical path 2 uses the concentric optical path of coaxial-illuminating zoom: by using thing side's telecentric beam path to ensure
While the end end face to be measured of optical fiber 12 amplifies, can guarantee that the microcellular structure size of optical fiber 12 is undistorted；
Anamorphosis function ensures view finding when system adapts to different size optical fiber and is easy to imaging operation and amplification；Illumination
Light source 3 is coaxial-illuminating light source, and this subsidiary i.e. coaxial-illuminating of high efficiency driver unit of lighting source 3 drives box 4,
This lighting system is to realize the optimal illumination mode that the end face of optical fiber 12 is clearly observed, to realizing optical fiber 12
Dead axle the most crucial；
First fiber support platform 6 and the second fiber support platform 8: for realizing the accurate guiding at optical fiber 12 two ends
And horizontal support, it is ensured that optical fiber 12 energy friction-free rotary, realize the end end face to be measured illumination of optical fiber 12 simultaneously；
Code-disc 13 uses and adjusts with code-disc precision rotation angle and the high accuracy code-disc of measurement apparatus, has rotation
Angle coarse adjustment and accurate adjustment function, can guarantee that the most accurately angle modulation ability；
Rotator 14 is the conventional rotary apparatus with bidirectional rotation function；
Mobile platform 9 uses the accurate three axle mobile platforms of MBT621 type of Thorlabs company, mobile range
± 50mm, displacement accuracy 10 μm, by the fine adjustment of mobile platform, it is achieved optical fiber 12 accurately clear
Imaging；
Host computer 17 is computer, the PaintShop in host computer 17 and code-disc angle display program root
Conventional software and program is selected according to needs.
Fig. 1 also show by rotator 14, code-disc the 13, first installing plate 22 and the second installing plate 25 structure
The rotating mechanism 7 become, the screw thread rotation bar 18 on mobile platform 9；Fig. 2 also show the biography of code-disc 13
Defeated line 21, round turntable 23, square data reading device 24, round turntable 23 has scale can be direct
The anglec of rotation of display code-disc 13, these are existing structure, do not illustrate.
In order to the feasibility of photonic crystal fiber dead axle device described in the utility model is illustrated, name
Example illustrates the preferred axis fixation method that this dead axle device uses, but following method not unique method, it is less this
The protection object of utility model.
In conjunction with Fig. 1-Fig. 3, the axis fixation method that photonic crystal fiber dead axle device described in the utility model uses, bag
Include following steps:
(1) open lighting source 3 to medium light intensity, a translucent paper is disposed close to optical path
The front end of the first fiber support platform 6 of 2 forms hot spot, regulates the X of mobile platform 9, Z-direction position, makes big
Cause in the " V " shape groove that half hot spot falls within the first fiber support platform 6, it is ensured that optical fiber 12 is positioned over measurement light
The center on road 2, then Y-direction regulation mobile platform 9, be adjusted to the centre position of Y-direction displacement range；
(2) PaintShop in opening host computer 17 and making host computer 17 and code-disc angle display program
Running, after weak for the intensity of light source tune of lighting source 3, the amplification of regulation optical path 2 is the most minimum,
Guarantee that the visual field of image processing software on host computer 17 is maximum；
(3) by design length, optical fiber 12 is cut into pieces, the coat of wherein one end of wherein one section is shelled
After going, use fiber cut cutter by smooth for the ends cutting of optical fiber 12, and as end to be measured；
(4) locking device of code-disc 13 front end upwards and is opened by the " u "-shaped breach of code-disc 13, will
Clamping clip 11 upwards, is opened by the " u "-shaped groove of rotator 14, and optical fiber 12 is positioned over first simultaneously
In the " V " shape groove of fiber support platform 6 and the second fiber support platform 8, in the " u "-shaped breach of code-disc 13
With in the " u "-shaped groove of rotator 14；
(5) distance of the end range measurement light path to be measured of optical fiber 12 is 6-8mm, touches optical fiber 12 with hands
End to be measured, observe image in PaintShop, when a certain sparklet occurs, regulate optical path 2
Amplification, observe the end face to be measured whether this bright spot is optical fiber 12, find the end face to be measured of optical fiber 12
After, the amplification of optical path 2 is adjusted to minimum；
(6) clamping clip 11 is put down fiber clamping 12, the locking device of code-disc 13 front end is rotated certain
Angle is to pin optical fiber 12, it is ensured that optical fiber 12 is stable, the most again finely tunes mobile platform 9 during this,
Until the sparklet of the end face reflection to be measured of optical fiber 12 enters the field range center of image processing software；
(7) amplification of optical path 2 is increased, PaintShop can appear clearly from light
The microstructure graph of the end face to be measured of fine 12, if now the diplopore at center is the most in the horizontal direction, then regulates rotation
Turning device 14 makes its diplopore be horizontally oriented to guarantee that sensitive axes is perpendicular to table top, during this, in regulation rotation
Turn the position constantly finely tuning mobile platform 9 while device 14, regard keeping the end face to be measured of optical fiber 12 to be positioned at
Center court；
(8) by after good for the angular adjustment of optical fiber 12, use marker pen near its end face to be measured on optical fiber 12
Position be marked and determine that this position is optical fiber sensitive position；
(9) locking device of code-disc 13 front end is rotated to an angle make its " u "-shaped breach upwards, beat
Open clamping clip 11, take out optical fiber 12, and mobile platform 9 is readjusted back X, Y, Z-direction displacement model
The centre position enclosed, is adjusted to minimum by the amplification of optical path 2；Again the other end of optical fiber 12 is coated with
It is smooth as new end to be measured that coating peels off rear end face cutting, repeats step (4)-(8), determines optical fiber 12
The optical fiber sensitive position of the other end, completes the work of whole dead axle.
Above-described embodiment is preferred embodiment of the present utility model, is not to technical solutions of the utility model
Restriction, as long as the technical scheme that can realize on the basis of above-described embodiment without creative work,
In the range of being regarded as falling into the rights protection of this utility model patent.
Claims (7)
1. a photonic crystal fiber dead axle device, it is characterised in that: include for by the end face to be measured of optical fiber
The camera of high resolution imaging, for the end face visual effect to be measured of described optical fiber being amplified and transmission ray
Optical path, for the lighting source illuminated for the end to be measured of described optical fiber, for supporting the light of described optical fiber
Fibre supports platform, for clamping the clamping clip of described optical fiber, for rotating the rotator of described optical fiber, being used for
Measure the code-disc of the anglec of rotation of described optical fiber, move mobile platform and the host computer of described optical fiber for microspur,
Described optical fiber is placed on described fiber support platform and is clamped by described clamping clip, described code-disc and described rotation
Turn device and be respectively arranged in by described fiber support platform, described fiber support platform, described code-disc and described rotator
Being mounted on described mobile platform, the end to be measured of described optical fiber is near one end of described optical path, described
The other end of optical path is placed in the camera position of described camera, and the emergent light alignment of described lighting source is described
The end to be measured of optical fiber, the signal output part of described camera and the signal output part of described code-disc pass through two data
Line is connected with the signal input part of described host computer.
Photonic crystal fiber dead axle device the most according to claim 1, it is characterised in that: described photon
Crystal optical fibre dead axle device also includes for the transmitted light source for described optical path light filling.
Photonic crystal fiber dead axle device the most according to claim 1 and 2, it is characterised in that: described
Fiber support platform is the upper surface support platform through smooth treatment, and the upper surface of described fiber support platform is provided with " V "
Shape groove, described optical fiber is concurrently placed in described " V " shape groove, the " u "-shaped breach of described code-disc is interior and described
In the " u "-shaped groove of rotator.
Photonic crystal fiber dead axle device the most according to claim 3, it is characterised in that: described optical fiber
Support platform be two and described optical fiber axial direction in tandem, the inner side of two described fiber support platforms
It is separately installed with an installing plate, axis, described code-disc and described rotator are installed between two installing plates
Being coaxially installed on described axis, described rotator is connected with described code-disc and described code-disc can be driven to rotate.
Photonic crystal fiber dead axle device the most according to claim 1 and 2, it is characterised in that: described
Camera is all band digital camera；Described optical path is the concentric optical path of coaxial-illuminating zoom；Described photograph
Source, Mingguang City is coaxial-illuminating light source and is driven box to drive by coaxial-illuminating.
Photonic crystal fiber dead axle device the most according to claim 1 and 2, it is characterised in that: described
Host computer is computer.
Photonic crystal fiber dead axle device the most according to claim 1 and 2, it is characterised in that: described
In photonic crystal fiber dead axle device, other all parts in addition to described host computer are mounted on base plate also
It is placed in upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428504.8U CN205608236U (en) | 2016-05-12 | 2016-05-12 | Photonic crystal optic fibre dead axle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428504.8U CN205608236U (en) | 2016-05-12 | 2016-05-12 | Photonic crystal optic fibre dead axle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205608236U true CN205608236U (en) | 2016-09-28 |
Family
ID=56966980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428504.8U Withdrawn - After Issue CN205608236U (en) | 2016-05-12 | 2016-05-12 | Photonic crystal optic fibre dead axle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205608236U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785505A (en) * | 2016-05-12 | 2016-07-20 | 中国工程物理研究院总体工程研究所 | Photonic crystal optical fiber axis determination device and axis determination method |
| CN114545018A (en) * | 2022-02-22 | 2022-05-27 | 中国工程物理研究院总体工程研究所 | Optical fiber fragment speed measuring device and method |
-
2016
- 2016-05-12 CN CN201620428504.8U patent/CN205608236U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785505A (en) * | 2016-05-12 | 2016-07-20 | 中国工程物理研究院总体工程研究所 | Photonic crystal optical fiber axis determination device and axis determination method |
| CN105785505B (en) * | 2016-05-12 | 2018-08-07 | 中国工程物理研究院总体工程研究所 | A kind of photonic crystal fiber dead axle device and axis fixation method |
| CN114545018A (en) * | 2022-02-22 | 2022-05-27 | 中国工程物理研究院总体工程研究所 | Optical fiber fragment speed measuring device and method |
| CN114545018B (en) * | 2022-02-22 | 2024-01-30 | 中国工程物理研究院总体工程研究所 | Optical fiber broken piece speed measuring device and speed measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105785505B (en) | A kind of photonic crystal fiber dead axle device and axis fixation method | |
| CN204007526U (en) | Optical fiber geometric parameter testing experimental system | |
| CN107179178B (en) | A kind of Optical Fiber Winding device and method for the measurement of optical fiber macrobending loss | |
| CN205608236U (en) | Photonic crystal optic fibre dead axle device | |
| CN206648613U (en) | A kind of big lens eccentricity measurement apparatus | |
| US3062087A (en) | Apparatus for investigating polarized light phenomena | |
| CN103697836A (en) | Axial angle measuring device for polaroid | |
| CN104570272B (en) | Adjustment device for cube-corner prism dihedral angle error measurement | |
| CN101806934B (en) | Inner wall fused and embedded single-mode polarization maintaining fiber grating and preparation method thereof | |
| CN203745365U (en) | On-line glass color and reflectivity measurement system | |
| CN204359993U (en) | A kind of prism of corner cube dihedral error measure adjusting gear | |
| CN204666507U (en) | A kind of new automatic Abbe refractometer | |
| CN202382711U (en) | Center thickness measuring system of optical lens | |
| CN202353729U (en) | Viewing angle measuring device for flat-panel TV | |
| CN203259473U (en) | Refractivity measuring device | |
| CN106291805A (en) | Polarization-preserving fiber axis fixing device based on polaroid imaging principle and axis fixation method | |
| CN104266968B (en) | High accuracy polarization two is to reflection automatic measuring instrument | |
| CN101033947B (en) | Measurement system for three-dimensional deformation based on rotary Y-type optical fiber | |
| CN2463847Y (en) | Optical fibre of CCD micro-imaging and optical fibre device geometric sense detector | |
| CN109668516A (en) | A kind of optical fiber far-field scanning instrument based on worm and gear | |
| CN206193312U (en) | Micron order photoelectricity centring means based on surface reflection like | |
| CN205175665U (en) | Optical test tool | |
| CN103063227B (en) | The indicator device that auxiliary transit docks with target light path and light path butt joint | |
| CN203432721U (en) | Digital glasses stress tester | |
| CN219434311U (en) | Quick measuring device for angle of optical film shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160928 Effective date of abandoning: 20180807 |