CN208313562U - A kind of experimental provision measuring refractive index - Google Patents
A kind of experimental provision measuring refractive index Download PDFInfo
- Publication number
- CN208313562U CN208313562U CN201820769199.8U CN201820769199U CN208313562U CN 208313562 U CN208313562 U CN 208313562U CN 201820769199 U CN201820769199 U CN 201820769199U CN 208313562 U CN208313562 U CN 208313562U
- Authority
- CN
- China
- Prior art keywords
- regulating device
- refraction
- incident
- refractive index
- prism
- 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 - Fee Related
Links
Abstract
The utility model provides a kind of experimental provision for measuring refractive index, including pedestal, fixed plate, refraction regulating device, prism fixing device and incident regulating device, the fixed plate is fixed on the base, the side of the fixed plate is respectively equipped with incident regulating device, prism fixing device and refraction regulating device, the incidence regulating device and prism fixing device are coaxially disposed, the lower section of the incidence regulating device is equipped with refraction regulating device, and wherein prism fixing device is placed using the mode of lifting.By the angle for adjusting incident regulating device and refraction regulating device, keep the angle of incident regulating device consistent with angle of incident light, it is consistent with refracted ray angles to reflect regulating device, it open-and-shut can find out the refraction effect of surveyed prism, and refractive index is calculated by the angle of record incident ray and the goniometer of refracted light, and it is convenient and efficient, make to test simpler, it is more intuitive, be conducive to the learning initiative of mobilizing students.
Description
Technical field
The utility model belongs to Physical Experiment appliance technology, and in particular to a kind of experimental provision for measuring refractive index.
Background technique
The study of high school physics is very important in entire senior middle school study career, for the ease of the understanding and note of student
Recall, uses a large amount of experiment, including lecture experiment and operation experiments, and in the study of opticator, the study of refractive index
Occupy very important specific gravity.
In measurement glass refraction test, the track using pin recording beam path and the position of glass block are needed, is grasped
Make it is sufficiently complex, and be very easy to occur glass block and record blank sheet of paper position slide, lead to experimental data not
Accurately, the failure of an experiment is even resulted in, experiment is re-started, it is bothersome laborious.
Utility model content
Utility model aims to solve above-mentioned problem existing in the prior art, a kind of measurement refractive index is provided
Experimental provision makes the angle and incidence of incident regulating device by the angle of adjusting incident regulating device and refraction regulating device
Light angle is consistent, and refraction regulating device is consistent with refracted ray angles, open-and-shut can find out the refraction of surveyed prism
Effect, and refractive index is calculated by the angle of record incident ray and the goniometer of refracted light, it is convenient and efficient, make experiment more
Simply, more intuitively, be conducive to the learning initiative of mobilizing students.
The utility model is achieved through the following technical solutions:
It is a kind of measure refractive index experimental provision, including pedestal, fixed plate, refraction regulating device, prism fixing device and
Incident regulating device, the fixed plate are fixed on the base, and the side of the fixed plate is respectively equipped with incident regulating device, prism
Fixed device and refraction regulating device, the incident regulating device and prism fixing device are coaxially disposed, and incident adjust fills
The lower section set is equipped with refraction regulating device.By adjusting the angle of incident regulating device and refraction regulating device, make incident adjusting
The angle of device is consistent with angle of incident light, and refraction regulating device is consistent with refracted ray angles, open-and-shut can see
The refraction effect of surveyed prism out, and refractive index, side are calculated by the angle of record incident ray and the goniometer of refracted light
Just quick, make to test simpler, more intuitively, is conducive to the learning initiative of mobilizing students.
The prism fixing device includes placement plate, the second screw rod, supporting plate and the 4th knob, and the placement plate is equipped with square
Shape hole, the front and rear sides of the rectangular opening are equipped with the first step stretched out into rectangular opening, and the left and right sides of the rectangular opening is right
Claim to be equipped with through-hole, the second screw rod is equipped in the through-hole, one end of second screw rod is equipped with the 4th knob, the other end and supporting plate
Connection, the supporting plate are placed on first step, and the supporting plate is equipped with the second step being arranged towards another supporting plate.Using
Supporting plate places testee, and it is steady fixed when testing to guarantee, is conveniently replaceable simultaneously, improves determination efficiency.
The incidence regulating device includes the second rotary shaft, and second rotary shaft rotatably passes through fixed plate, described
One end of second rotary shaft is force side, and the other end is fixed with light source adjusting rod, and the light source adjusting rod is equipped with can be along it
The light source sliding block of sliding, the light source sliding block are fixed by the clamping screw connecting with third knob, are set on the light source sliding block
There is light source fixed link, the light source fixed link is equipped with into shot-light, the angle of light source adjusting rod is adjusted by the second rotary shaft, from
And change the incident angle of incident light source, it can be realized multi-angle measurement, while can satisfy refractive index under observation dynamic angle
Variation.
The outside of first rotary shaft of second rotary sleeve on the prism fixing device makes the first rotary shaft and the
The setting of two concentric rotation axis, can guarantee that the incident angle of light source is accurate.
The refraction regulating device includes fixing seat, and the fixing seat is supported by the first screw rod, the end of first screw rod
End is equipped with the first knob, and first screw rod is equipped with refraction sliding block, and the refraction sliding block is equipped with positioning column, the positioning column
It is equipped with multiple pointers.The position that sliding block is adjusted by the first screw rod, the position for going out it with refraction light emission is corresponding, passes through fluctuation
Pointer records the position of refracted light, and multiple pointers are arranged, and can satisfy the requirement repeatedly measured, improves experiment
Accuracy.
The refraction regulating device is additionally provided with to reflect the guide rod of slider guide, and the guide rod is parallel with the first screw rod to be set
It sets, guide rod is set, stationarity when can be improved refraction sliding block movement makes to refer to meanwhile, it is capable to which refraction sliding block is avoided to be flipped
Needle keeps parallel with fixed plate.
Be respectively equipped in the fixed plate incidence angle scale corresponding with incident regulating device and with refraction regulating device
Incidence angle scale and refraction angle scale is arranged, convenient for directly reading the angle and folding of incident ray in corresponding refraction angle scale
The angle for penetrating light is eliminated the trouble measured using protractor, improves degree efficiency.
The fixed plate is transparent panel, using transparent panel, can observe incident ray and refraction light in the rear side of fixed plate
Line, convenient for operating incident regulating device and prism fixing device, operation while, can be shown to student, not influence student
In positive observation.
Compared with prior art, the utility model has the beneficial effects that
1, the experimental provision of a kind of measurement refractive index of the utility model is adjusted by adjusting incident regulating device and refraction
The angle of device keeps the angle of incident regulating device consistent with angle of incident light, reflects regulating device and refracted ray angles
Unanimously, it open-and-shut can find out the refraction effect of surveyed prism, and pass through the angle and refracted light of record incident ray
Goniometer calculate refractive index, it is convenient and efficient, make to test simpler, more intuitively, the study for being conducive to mobilizing students is positive
Property；
2, the experimental provision of a kind of measurement refractive index of the utility model is placed testee using supporting plate, can be guaranteed
It is steady fixed when test, it is conveniently replaceable simultaneously, improves determination efficiency；
3, the experimental provision of a kind of measurement refractive index of the utility model, sets the first rotary shaft with the second concentric rotation axis
It sets, can guarantee that the incident angle of light source is accurate；
4, the guide rod parallel with the first screw rod is arranged in the experimental provision of a kind of measurement refractive index of the utility model, can
Stationarity when refraction sliding block movement is improved, meanwhile, it is capable to which refraction sliding block is avoided to be flipped, pointer is made to keep flat with fixed plate
Row；
5, incidence angle scale and refraction angle scale is arranged, just in the experimental provision of a kind of measurement refractive index of the utility model
In directly reading the angle of incident ray and the angle of refracted light, the trouble measured using protractor, degree of improving are eliminated
Number efficiency.
6, the experimental provision of a kind of measurement refractive index of the utility model, fixed plate use transparent panel, can be in fixed plate
Rear side observation incident ray and refracted light, convenient for operating incident regulating device and prism fixing device, energy while operation
It is enough to be shown to student, student is not influenced in positive observation.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the side structure schematic view of the utility model；
Fig. 3 is C-C the schematic diagram of the section structure in Fig. 2；
Fig. 4 is the incident regulating device schematic view of the front view of the utility model；
Fig. 5 is the incident regulating device side structure schematic view of the utility model；
Fig. 6 is the prism fixing device structural schematic diagram of the utility model；
Fig. 7 is the refraction regulating device schematic view of the front view of the utility model；
Fig. 8 is the refraction regulating device side structure schematic view of the utility model；
Fig. 9 is prism fixing device (supporting plate) structural schematic diagram of the utility model；
Figure 10 is prism fixing device (supporting plate) overlooking structure diagram of the utility model；
Figure 11 is D-D the schematic diagram of the section structure in Figure 10；
Wherein, 1, pedestal, 2, fixed plate, 3, refraction regulating device, 4, prism fixing device, 5, incident regulating device, 6,
Incidence angle scale, 7, refraction angle scale, 8, fixing seat, 9, guide rod, the 10, first screw rod, 11, refraction sliding block, 12, pointer, 13, the
One knob, 14, positioning column, the 15, first rotary shaft, 16, prism fixing seat, 17, elastic layer, 18, prism platen, 19, compression spiral shell
Bolt, the 20, second knob, the 21, second rotary shaft, 22, light source adjusting rod, 23, light source sliding block, 24, light source fixed link, 25, incidence
Lamp, 26, third knob, 27, placement plate, the 28, second screw rod, 29, supporting plate, the 30, the 4th knob, 31, first step, 32, second
Step.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1-3, it is a kind of measure refractive index experimental provision, including pedestal 1, fixed plate 2, refraction regulating device 3,
Prism fixing device 4 and incident regulating device 5, the pedestal 1 use cast iron base 1, and pedestal 1 is quadrangle, the bottom of pedestal 1
Equipped with foot pad, pedestal 1 is avoided to cause to damage to desktop, the fixed plate 2 is fixed on pedestal 1, specifically, the fixed plate 2
It is fixed on the side of 1 top surface of pedestal, the side of the fixed plate 2 is respectively equipped with incident regulating device 5,4 and of prism fixing device
Regulating device 3 is reflected, the incidence regulating device 5 is coaxially disposed with prism fixing device 4, under the incidence regulating device 5
Side is equipped with refraction regulating device 3.By adjusting the angle of incident regulating device 5 and refraction regulating device 3, make incident regulating device
5 angle is consistent with angle of incident light, and refraction regulating device 3 is consistent with refracted ray angles, open-and-shut can find out
The refraction effect of surveyed prism, and refractive index is calculated by the angle of record incident ray and the goniometer of refracted light, it is convenient
Fast, make to test simpler, more intuitively, be conducive to the learning initiative of mobilizing students.
As shown in fig. 6, the prism fixing device 4 includes the first rotary shaft 15, first rotary shaft 15 is rotatable
Across fixed plate 2, one end of first rotary shaft 15 is force side, can be rotated with hand, the other end is fixed with prism and fixes
Seat 168, the prism fixing seat 168 are equipped with hold-down bolt 19, specifically, prism fixing seat 168 is that U-shaped, U-shaped prism is solid
One vertical edge of reservation 168 is fixed in the first rotary shaft 15, another vertical edge is equipped with hold-down bolt 19, the hold-down bolt
19 one end is equipped with prism platen 18, and the other end is equipped with the second knob 20, by rotating the second knob 20, adjusts hold-down bolt 19
Position, to adjust the position of prism platen 18, in use, prism is placed in prism fixing seat 168, then by turning
Dynamic first knob 13, compresses prism platen 18 by prism.The angle of prism fixing seat 168 is adjusted by the first rotary shaft 15,
It can guarantee that the position of prism is accurate, improve the accuracy of experiment.
In order to avoid prism fixing seat 168 damages prism when clamping, the prism fixing seat 168 and calm pressure
The face that plate is contacted with prism is equipped with elastic layer 17, and elastic layer 17 is arranged on the face contacted with prism, can guarantee prism not
It is scratched, while the frictional force between prism can be increased, prevent prism from falling damage.
The elastic layer 17 is rubber, sponge, silica gel or foamed plastic, is convenient for materials using above-mentioned elastic material, together
When can guarantee to reduce production cost to the buffering effect and antiskid effect of prism.
As shown in figs. 9-11, the structure type as another prism fixing device, the prism fixing device include putting
Set plate 27, the second screw rod 28, supporting plate 29 and the 4th knob 30, the placement plate 27 is equipped with rectangular opening, before the rectangular opening
Two sides are equipped with the first step 31 stretched out into rectangular opening afterwards, and through-hole is symmetrically arranged at left and right sides of the rectangular opening, described logical
The second screw rod 28 is equipped in hole, one end of second screw rod 28 is equipped with the 4th knob 30, and the other end is connect with supporting plate 29, described
Supporting plate 29 is placed on first step 31, and the supporting plate 29 is equipped with the second step 32 being arranged towards another supporting plate 29.It adopts
Testee is placed with supporting plate 29, it is steady fixed when testing to guarantee, and it is conveniently replaceable simultaneously, improves determination efficiency, in use,
The 4th knob 30 is rotated, rotates the second screw rod 28, at this point, supporting plate 29 slides on first step 31, to adjust supporting plate 29
Position, since supporting plate 29 is arranged symmetrically, so, while adjust two the 4th knobs 30, two supporting plates 29 are along First
Rank 31 is slided, it will be able to the separation distance between two supporting plates 29 is adjusted, after the completion of the distance adjustment of two supporting plates 29, by rib
Mirror is placed on the second step 32 of supporting plate 29, and prism is held, and completes the placement of prism.
As illustrated in figures 4-5, the incident regulating device 5 includes the second rotary shaft 21, and second rotary shaft 21 can be rotated
Pass through fixed plate 2, one end of second rotary shaft 21 is force side, and the other end is fixed with light source adjusting rod 22, the light
Source adjusting rod 22 is equipped with the light source sliding block 23 that can slide along, and the light source sliding block 23 with third knob 26 by connecting
Clamping screw is fixed, and the light source sliding block 23 is equipped with light source fixed link 24, and the light source fixed link 24 is equipped with into shot-light 25,
The angle that light source adjusting rod 22 is adjusted by the second rotary shaft 21 adjusts illuminator away from prism by mobile light source sliding block 23
Distance can be realized multi-angle measurement to change the incident angle of incident light source, while can satisfy under observation dynamic angle
The variation of refractive index.
Second rotary shaft 21 is sleeved on the outside of the first rotary shaft 15 on prism fixing device 4, makes the first rotation
Axis 15 and the second rotary shaft 21 are coaxially disposed, and can guarantee that the incident angle of light source is accurate.
As Figure 7-8, the refraction regulating device 3 includes fixing seat 8, and the fixing seat 8 is supported by the first screw rod 10,
The end of first screw rod 10 is equipped with the first knob 13, and first screw rod 10 is equipped with refraction sliding block 11, and the refraction is slided
Block 11 is equipped with positioning column 14, and the positioning column 14 is equipped with multiple pointers 12, and the center of circle of positioning column 14 is in prism fixing seat 168
Bottom edge projection line on, by rotate the first knob 13, make the first screw rod 10 rotate, thus adjust refraction sliding block 11 in the first spiral shell
Position on bar 10, the position where refraction sliding block 11 is the position that refracted light projects, due to the refractive index of different prisms
Difference, when replacing prism, needs to redefine the position of refracted light injection so the position that refracted light projects is different.
The position that sliding block is adjusted by the first screw rod 10, the position for going out it with refraction light emission is corresponding, by fluctuating pointer 12, will reflect
The position of light is recorded, and multiple pointers 12 are arranged, can satisfy the requirement repeatedly measured, improve the accuracy of experiment.
The refraction regulating device 3 is additionally provided with the guide rod 9 being oriented to for refraction sliding block 11, the guide rod 9 and the first screw rod 10
It is arranged in parallel, guide rod 9 is set, can be improved the stationarity when refraction movement of sliding block 11, meanwhile, it is capable to which refraction sliding block 11 is avoided to send out
Raw overturning makes pointer 12 keep parallel with fixed plate 2.
It is respectively equipped with incidence angle scale 6 corresponding with incident regulating device 5 in the fixed plate 2 and adjusts dress with refraction
3 corresponding refraction angle scales 7 are set, incidence angle scale 6 and refraction angle scale 7 are set, convenient for directly reading the angle of incident ray
The angle of degree and refracted light is eliminated the trouble measured using protractor, improves degree efficiency.
The fixed plate 2 is transparent panel, using transparent panel, can observe incident ray and refraction in the rear side of fixed plate 2
Light, convenient for operating incident regulating device 5 and prism fixing device 4, operation while, can be shown to student, not influence
Student is in positive observation.
A kind of application method for the experimental provision measuring refractive index is as follows:
Firstly, being ready to need to measure the glass block of refractive index；
Second, glass block is placed in prism fixing seat 16, the second knob 20 is then rotated, pushes hold-down bolt 19
Prism platen 18 compresses glass block, then rotates the first rotary shaft 15, adjusts two planes up and down of glass block to level；
Third adjusts position of the shot-light in light source fixed link 24, then adjusts light source sliding block 23 in light source adjusting rod
Position on 22 adjusts into the distance between shot-light 25 and glass block, rotates the second rotary shaft 21, make 22 turns of light source adjusting rod
It is dynamic, adjust the incident angle into shot-light 25, can directly be found out by incidence angle scale 6 into the angle where shot-light 25, open into
Shot-light；
4th, the first knob 13 is rotated, the first screw rod 10 is rotated, the position of adjustment refraction sliding block 11 makes positioning column 14
The center of circle be overlapped with the injection of refracted light point, fluctuate pointer 12, be overlapped pointer 12 with the optical path of refracted light, pass through refraction
Angle scale 7 reads angle number；
5th, the angle number of incident ray and the angle number of refracted light are recorded respectively, and carry out multiple groups experiment, seek rolling over
Penetrate the average value of rate.
Above-mentioned technical proposal is a kind of embodiment of the utility model, for those skilled in the art,
On the basis of the utility model discloses application method and principle, it is easy to various types of improvement or deformation are made, without
It is only limitted to method described in the above-mentioned specific embodiment of the utility model, therefore previously described mode is only preferred, and
Not restrictive meaning.
Claims (7)
1. a kind of experimental provision for measuring refractive index, which is characterized in that solid including pedestal, fixed plate, refraction regulating device, prism
Determine device and incident regulating device, the fixed plate is fixed on the base, and the side of the fixed plate is respectively equipped with incident adjusting
Device, prism fixing device and refraction regulating device, it is described incidence regulating device and prism fixing device be coaxially disposed, it is described enter
The lower section for penetrating regulating device is equipped with refraction regulating device；
The prism fixing device includes placement plate, the second screw rod, supporting plate and the 4th knob, and the placement plate is equipped with rectangle
Hole, the front and rear sides of the rectangular opening are equipped with the first step stretched out into rectangular opening, and the left and right sides of the rectangular opening is symmetrical
Equipped with through-hole, the second screw rod is equipped in the through-hole, one end of second screw rod is equipped with the 4th knob, and the other end and supporting plate connect
It connects, the supporting plate is placed on first step, and the supporting plate is equipped with the second step being arranged towards another supporting plate.
2. a kind of experimental provision for measuring refractive index according to claim 1, which is characterized in that the incidence regulating device
Including the second rotary shaft, second rotary shaft rotatably passes through fixed plate, and one end of second rotary shaft is force side,
The other end is fixed with light source adjusting rod, and the light source adjusting rod is equipped with the light source sliding block that can be slid along, and the light source is sliding
Block is fixed by the clamping screw connecting with third knob, and the light source sliding block is equipped with light source fixed link, and the light source is fixed
Bar is equipped with into shot-light.
3. a kind of experimental provision for measuring refractive index according to claim 2, which is characterized in that second rotary sleeve
The outside of the first rotary shaft on prism fixing device.
4. a kind of experimental provision for measuring refractive index according to claim 1, which is characterized in that the refraction regulating device
Including fixing seat, the fixing seat is supported by the first screw rod, and the end of first screw rod is equipped with the first knob, first spiral shell
Bar is equipped with refraction sliding block, and the refraction sliding block is equipped with positioning column, and the positioning column is equipped with multiple pointers.
5. a kind of experimental provision for measuring refractive index according to claim 4, which is characterized in that the refraction regulating device
It is additionally provided with to reflect the guide rod of slider guide, the guide rod is arranged in parallel with the first screw rod.
6. a kind of experimental provision for measuring refractive index according to claim 1, which is characterized in that in the fixed plate respectively
Equipped with incidence angle scale corresponding with incident regulating device and refraction angle scale corresponding with refraction regulating device.
7. a kind of experimental provision for measuring refractive index according to claim 1, which is characterized in that the fixed plate is transparent
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820769199.8U CN208313562U (en) | 2018-05-22 | 2018-05-22 | A kind of experimental provision measuring refractive index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820769199.8U CN208313562U (en) | 2018-05-22 | 2018-05-22 | A kind of experimental provision measuring refractive index |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313562U true CN208313562U (en) | 2019-01-01 |
Family
ID=64715175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820769199.8U Expired - Fee Related CN208313562U (en) | 2018-05-22 | 2018-05-22 | A kind of experimental provision measuring refractive index |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208313562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216881A (en) * | 2022-01-17 | 2022-03-22 | 华中科技大学 | Device and method for judging peroxide value of vegetable oil by optical method |
-
2018
- 2018-05-22 CN CN201820769199.8U patent/CN208313562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216881A (en) * | 2022-01-17 | 2022-03-22 | 华中科技大学 | Device and method for judging peroxide value of vegetable oil by optical method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100427929C (en) | Image testing method for fabric dynamic and static drapability and testing apparatus thereof | |
| CN208313562U (en) | A kind of experimental provision measuring refractive index | |
| CN203858794U (en) | Friction angle measurement demonstration instrument | |
| CN102830061B (en) | Slippery instrument | |
| CN209804095U (en) | Physical optics experimental apparatus | |
| CN109545040A (en) | Measurement statistics composition integration normal distribution apparatus for demonstrating | |
| CN205404404U (en) | Novel refractometry demonstrates appearance | |
| CN208889152U (en) | A kind of refractive index measuring apparatus | |
| CN211601915U (en) | Angle measuring instrument | |
| CN202353729U (en) | Viewing angle measuring device for flat-panel TV | |
| CN209560813U (en) | A kind of high school physics friction force demonstration device | |
| CN207936945U (en) | It is a kind of to solar panels and coating detection equipment | |
| CN201237850Y (en) | Optical grating Moire fringe tester | |
| CN206684040U (en) | A kind of device for measuring parallel plate refractive index | |
| CN211263047U (en) | Sponge rebound rate testing arrangement | |
| CN209588928U (en) | A kind of stabilizing mechanism of optical fiber bundle tubes apparatus for detecting diameter | |
| CN207867774U (en) | A kind of angle of friction MEASUREMENT TEACHING tool | |
| CN203689791U (en) | Electronic micrometer experimental device | |
| CN209044978U (en) | Mechanical accurate fine motion inclined-plane mechanics series experiment instrument | |
| CN215865188U (en) | Civil engineering's wall inclination test is with spirit level | |
| CN213582727U (en) | Portable friction factor tester | |
| CN2715275Y (en) | Light refraction and total reflection experiment device | |
| CN211719137U (en) | Total reflection demonstration teaching aid | |
| CN207799996U (en) | Self-made Realia is demonstrated in the reflected refraction of light | |
| CN205410314U (en) | Student uses refraction experiment desk |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |