CN103293586A - Negative refraction single-element polarization beam-splitting prism and polarization beam-splitting method - Google Patents
Negative refraction single-element polarization beam-splitting prism and polarization beam-splitting method Download PDFInfo
- Publication number
- CN103293586A CN103293586A CN2013102332098A CN201310233209A CN103293586A CN 103293586 A CN103293586 A CN 103293586A CN 2013102332098 A CN2013102332098 A CN 2013102332098A CN 201310233209 A CN201310233209 A CN 201310233209A CN 103293586 A CN103293586 A CN 103293586A
- Authority
- CN
- China
- Prior art keywords
- face
- light
- prism
- splitting
- incident
- 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.)
- Pending
Links
Images
Landscapes
- Optical Elements Other Than Lenses (AREA)
Abstract
Disclosed are a negative refraction single-element polarization beam-splitting prism and a polarization beam-splitting method. The negative refraction single-element polarization beam-splitting prism is composed of a single cuboid made of natural Iceland spar; an incidence end face, an emergence end face, a top reflecting surface and a bottom reflecting surface are polished surfaces; and the incidence end face is parallel to the emergence end face, and the top reflecting surface is parallel to the bottom reflecting surface. A light beam is transmitted to a single-element single-shaft birefringent crystal prism at a specific angle, o light is normally refracted on the incidence end face, fully reflected by the other side of the prism and emitted at a certain angle through refraction of the emergence end face after arriving at the emergence end face; and e light is negatively refracted on the incidence end face, fully reflected by the other side of the prism and emitted at a certain angle through refraction of the emergence end face after arriving at the emergence end face. The included angle formed by a crystal optical axis and an incidence interface is 45 degrees. The extinction ratio of the prism is superior to 10-5, and the natural transmittance in a spectrum area of 400-1600nm is 90%. The beam-spitting characteristics of the prism prove that the prism is provided with a plurality of functions of polarization beam-splitting, large beam-splitting angles and adjustability along with angles of incidence.
Description
Technical field
The invention discloses a kind of conventional refraction of ordinary light (o light) generation in the single axial birefringence crystal prism, negative refraction takes place through reflecting very much in non-ordinary light (e light), and then o, e light produce polarized beam splitting method and the cellular construction negative refraction polarizing-splitting prism of wide-angle beam splitting after through total reflection, outgoing crystal, belongs to field of optical device technology.
Background technology
Polarizing device is the important devices in laser technology and the polarisation applied technical field, and polarizing-splitting prism is an important class of polarizing device.Its research and development are significant to the development of Modern Optics Technology such as optical communication, optical information processing, optic test, laser technology and photometry calculation.Before the present invention makes, the polynary design of the normal employing of common polarizing device, optic damage threshold value is lower, and cementing layer under certain conditions can be influential to structure and the performance of device, and the function of device is also more single, brings inconvenience for experiment and application.
The developing of the development of laser and optical modulation application technology and new application, polarizing-splitting prism has been proposed some new requirements: (1) requirement reduces in design, the process device beam splitting, the bias influential method of energy and step as far as possible, and make prism have the extinction ratio of bigger splitting angle and Geng Gao as far as possible, to adapt to the needs that hi-tech and precision measurement are used.(2) require device to have more function as far as possible, be beneficial to the simplification of instrument and equipment and experimental provision and the multiple use of miniaturization and single device, thereby improve its reliability and cost performance.
The Wollaston prism by two optical axis of crystal the coplanar and orthogonal crystal of direction form, this is the polarizing beamsplitter that is most widely used at present.The starting material of making prism generally adopt the icelandspar crystal, and this is a kind of natural single axial birefringence crystal, also can't carry out the artificial growth of bulk at present.Its principle of work of prism is: the nonpolarized light of incident enters and is divided into that light vector is parallel to the e light of the optical axis of crystal behind the first half of prism and perpendicular to the o light of the optical axis of crystal; Because the difference of the refractive index of e, o light wave, the refraction angle in cementing layer are also different; Because the optical axis of crystal of latter half is vertical with first half, so the e light of first half becomes o light, and o light becomes e light, causes two-beam in the cementing layer to enter the angle of separating behind the latter half and further enlarges; Two-beam is through the refraction of prism outgoing end face and obtain the beam splitting angle that prism produces.The splitting angle of prism can reach 15 °, and transmissivity is that 85%(is at the incident of 632.8nm laser).
The Wollaston prism is made of two crystal, this can cause prism transmission than on the low side, in the manufacture craft, two crystal by adopting adhesives glue together, make that the anti-damage threshold of laser of device is lower, mechanical property is general, and makes compound prism and need expend great deal of raw materials, and this utilization for mineral crystal is a critical defect.
Patent polarizing-splitting prism and polarized beam splitting method (201010110065.3) are a kind of cellular constructions, left side (incident) face, right side (outgoing) face, top (reflection) mirror polish; Its principle of work is: o light is directly by the single axial birefringence crystal prism, and maintenance and incident beam are in the same way after the outgoing; A total reflection takes place at single axial birefringence crystal prism end face in the e light that very refraction takes place at incident end face, arrives the outgoing end face again through very refraction, will produce splitting angle with the o light of outgoing after the outgoing.The relative incident light direction of splitting angle that this prism produces is to one side deviation.
Summary of the invention
In view of above-mentioned condition, be necessary to provide a kind of stock utilization that improves, can realize that the relative incident light direction of two bunch polarized lights of outgoing is to the wide-angle polarized beam splitting of both sides deviation, extinction ratio height, the transmissivity height, the polarizing-splitting prism with high damage threshold and better mechanical property.
The invention provides a kind of in the single axial birefringence crystal prism ordinary light (o light) reflect-total reflection-refraction, non-ordinary light (e light) is through the polarized beam splitting method of the refraction of negative refraction-total reflection-very and a kind ofly have a superior performance index, utilizes unit crystal prism structure to realize the negative refraction unit polarizing-splitting prism of similar Wollaston prism beam splitting effect.
Polarized beam splitting method of the present invention, its mechanism is: light is propagated in the uniaxial anisotropy crystal prism, is divided into the orthogonal linearly polarized light of two bundle direction of vibration, often claims o light and e light; O light is observed refraction law generation normal refraction through incident end face; Very refraction takes place at incident end face in e light, and reflecting very much of e light unusual negative refraction can occur under incident angle is the situation of certain angle scope; O light reaches the bottom surface generation total reflection of crystal prism afterwards, then reflects outgoing at a certain angle again at the outgoing end face; E light reaches the end face generation total reflection of crystal prism, then at the outgoing end face outgoing at a certain angle takes place to reflect very much.Behind the outgoing prism, o, e light produce certain splitting angle with relative incident light direction to the both sides deviation.Because the process of polarization beam splitting is finished by unit crystal structure prism, make polarized beam splitting method of the present invention and prism transmission than, extinction ratio and optic damage threshold value height, good mechanical property, and the volume trifle is economized starting material.
This programme is realized by following technical measures: a kind of negative refraction unit polarizing-splitting prism, it is characterized in that it is to be made of the monolithic rectangular parallelepiped that natural icelandspar crystal is made, incident end face, the outgoing end face, top reflecting surface and bottom reflection face are polished surface; Incident end face is parallel with the outgoing end face, and the top reflecting surface is parallel with the bottom reflection face.
A kind of negative refraction unit polarizing-splitting prism, the wavelength coverage that it is characterized in that incident light is 300 ~ 1800nm, prismatic light shaft angle α
o(angle of the optical axis of crystal and rectangular coordinate system x axle) span is 25 ~ 65 degree, and during light incident crystal, negative refraction must take place at the incident end face place e light, and the incident angle span is 1 ~ 8 degree.
The concrete characteristics of this programme also have, and the length of prism-aperture ratio is 17.
If prism is used in single wavelength or little spectral range, and light incident at a certain angle, optimal light shaft angle α
oGet 46.4o.
A kind of polarization beam splitting method that uses negative refraction and bireflection, it is characterized in that with wavelength coverage be 300 ~ 1800nm light beam with span be 1 ~ 8 the degree incident angle inject on the crystal interface of unit polarized light beam splitting device, described negative refraction unit polarized beam splitting device is to be made of the monolithic rectangular parallelepiped that natural icelandspar crystal is made, incident end face, the outgoing end face, top reflecting surface and bottom reflection face are polished surface; Incident end face is parallel with the outgoing end face, and the top reflecting surface is parallel with the bottom reflection face;
Prismatic light shaft angle α
o(angle of the optical axis of crystal and rectangular coordinate system x axle) span is 25 ~ 65 degree;
O light is through the process outgoing of refraction-total reflection-refraction, and e light is through negative refraction-total reflection-very process outgoing of refraction, and two-beam can produce splitting angle with relative incident light direction to the both sides deviation after the outgoing of outgoing end face.
The concrete characteristics of this programme also have, if prism is used in single wavelength or little spectral range, and light incident at a certain angle, optimal light shaft angle α
oGet 46.4o.
The invention has the beneficial effects as follows: the present invention adopts the cellular construction design, uses under the situation of A level icelandspar crystal optic damage threshold value continuous light 500W/cm2, the incident of pulsed light 500MW/cm2(1.06 μ m light), transmissivity 90% ~ 98%, extinction ratio 1 * 10
-5, prism splitting angle 19 ~ 20 ° of (45 ° at optical axis of crystal angle, incident wavelengths 300 ~ 1800nm).
After light enters the single axial birefringence crystal, o light through incident end face according to refraction law generation normal refraction; Very refraction takes place at incident end face in e light, and unusual negative refraction appears in reflecting very much under incident angle is the situation of certain angle scope of e light.Then, total reflection takes place in the bottom surface that makes o light reach crystal prism, then reflects outgoing at a certain angle again at the outgoing end face; E light reaches the end face generation total reflection of crystal prism, then at the outgoing end face outgoing at a certain angle takes place to reflect very much.Behind the outgoing prism, o, e light produce certain splitting angle with relative incident light direction to the both sides deviation.1. utilized the very refraction of e light in the single axial birefringence crystal can produce the characteristic of negative refraction, finished partially and the dispersing of o, e light at incident end face, finish the total reflection of e light, o light respectively in end face and bottom surface, reflect to the both sides of this face normal at outgoing end face o, e light, finish the generation of o, the big splitting angle of e light, thereby realized that rising of device is inclined to one side and divided beam function.What 2. adopt is unit crystal structure design, than binary or triple combination prisms such as previous Wollaston prism or two Wollaston, avoided the influence of cementing layer to the polarization beam splitting process, improved the optic damage threshold value of device, mechanical property is also more firm.3. the similar Wollaston prism of polarization beam splitting effect, i.e. the o light deflection angle of outgoing is identical with the incident angle of incident light, but the direction difference, and e light produces bigger splitting angle to the other direction deviation; When the range of incident angle at 1o--～8o, splitting angle can change in a big way continuously.Negative refraction unit polarizing-splitting prism has the feature of polarization beam splitting, the adjustable multiple function integration of splitting angle obviously.The present invention is the negative refraction characteristic that reflects very much generation according to e light in the birefringece crystal, a kind of brand-new polarized beam splitting device of development and design, its beam splitting principle is based on the unusual negative refraction in the single axial birefringence crystal, still be referred to as negative refraction unit polarizing-splitting prism.Unique beam-splitting method can obtain the splitting angle greater than 20o, greater than the beam splitting ability of Wollaston prism.
Characteristics of the present invention are unit crystal structure prisms, one-piece construction is firm, the optic damage threshold value height, have polarization beam splitting, splitting angle is big and adjustable multi-functional, practical, these all are its key characters that is better than existing polarization beam splitter prism, make the application of such device more extensive than existing device; Have high technical feature and reliability, this has very important meaning in applications such as laser technology, optic test, optical modulation.
Description of drawings
Fig. 1 is structural representation of the present invention; Fig. 2 is the polarization beam splitting light path synoptic diagram of the present invention when working.Among the figure: the 1-incident end face; 2-outgoing end face; 3-top reflecting surface; 4-bottom reflection face.
Embodiment
A kind of negative refraction unit polarizing-splitting prism.Its structure and light splitting light path are as illustrated in fig. 1 and 2.Double-head arrow is represented the optical axis direction of single axial birefringence crystal among the figure, and the direction cosine of optical axis are (cos α
0, cos γ
0).Mentality of designing is: nonpolarized light enters the end face 1 of prism with incident angle i, and negative refraction appears in e light, and the refraction angle is γ
Re, be totally reflected to end face 2 through interface 3 then, again with refraction angle i
eOutgoing.O light is totally reflected to end face 2 through interface 4, with refraction angle i in the refraction of end face 1 place
oOutgoing.
Negative refraction polarizing-splitting prism in unit is to be formed by the monolithic rectangular structure lateral arrangement that the icelandspar crystal is made as shown in Figure 1, described single axial birefringence crystal prism left side is that incident end face 1, right side are outgoing end face 2, top reflecting surface 3 and 4 polishings of bottom reflection face, optical axis of crystal angle α
oValue 45 degree, the length of prism-aperture ratio is 17, lambda1-wavelength value 300nm, when angle of light 5 is spent, maximum splitting angle be 22.43 degree.
As shown in Figure 2, a kind of negative refraction polarized beam splitting method, with light beam at a certain angle scope inject negative refraction unit polarizing-splitting prism; Described negative refraction unit polarizing-splitting prism is to be formed by the monolithic rectangular structure lateral arrangement that the icelandspar crystal is made, the left side of described single axial birefringence crystal prism (incident) face, right side (outgoing) face, top (reflection) face and the end (reflection) mirror polish, optical axis of crystal angle α
o(angle of the optical axis of crystal and rectangular coordinate system x axle) span is 25 ~ 65 degree; O light is in the normal refraction of prism incident end face, through after the total reflection of bottom surface again through the refraction outgoing, its emergence angle is numerically identical with incident angle, " ± " is opposite; E light is in incident end face generation negative refraction, and by the refraction outgoing, exit direction is opposite with o light through the end face total reflection; So produce certain splitting angle after o, the outgoing of e light.Prism material is the icelandspar crystal of optical grade; α among the figure
0Be optical angle.If prism is used in big spectral range, α
oValue be 45o.
Embodiment 2
Present embodiment and embodiment 1 something in common repeat no more, and difference is optical axis of crystal angle value 25 degree, and splitting angle is 15.87 degree.
Present embodiment and embodiment 1 something in common repeat no more, and difference is optical axis of crystal angle value 30 degree, and splitting angle is 18.39 degree.
Embodiment 4
Present embodiment and embodiment 1 something in common repeat no more, and difference is optical axis of crystal angle value 40 degree, and splitting angle is 21.74 degree.
Embodiment 5
Present embodiment and embodiment 1 something in common repeat no more, and difference is optical axis of crystal angle value 50 degree, and splitting angle is 22.39 degree.
Embodiment 6
Present embodiment and embodiment 1 something in common repeat no more, and difference is optical axis of crystal angle value 60 degree, and splitting angle is 20.03 degree.
Embodiment 7
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 394nm, and splitting angle is 19.97 degree.
Embodiment 8
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 533nm, and splitting angle is 18.61 degree.
Embodiment 9
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 633nm, and splitting angle is 18.14 degree.
Embodiment 10
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 706nm, and splitting angle is 17.90 degree.
Embodiment 11
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 801nm, and splitting angle is 17.66 degree.
Embodiment 12
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 905nm, and splitting angle is 17.46 degree.
Embodiment 13
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 1064nm, and splitting angle is 17.20 degree.
Embodiment 14
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 1229nm, and splitting angle is 16.95 degree.
Embodiment 15
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 1307nm, and splitting angle is 16.83 degree
Embodiment 16
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 1500nm, and splitting angle is 16.54 degree.
Embodiment 17
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 1600nm, and splitting angle is 16.38 degree.
Embodiment 18
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam wavelength value 1800nm, and splitting angle is 16.02 degree.
Embodiment 19
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 8 degree, and splitting angle is 21.54 degree.
Embodiment 20
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 7 degree, and splitting angle is 21.62 degree.
Embodiment 21
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 6 degree, and splitting angle is 22.13 degree.
Embodiment 22
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 4 degree, and splitting angle is 22.74 degree.
Embodiment 23
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 3 degree, and splitting angle is 23.06 degree.
Embodiment 24
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 2 degree, and splitting angle is 23.38 degree.
Embodiment 25
Present embodiment and embodiment 1 something in common repeat no more, and difference is incident beam incident angle value 1 degree, and splitting angle is 23.72 degree.
Claims (5)
1. a negative refraction unit polarizing-splitting prism is characterized in that it is to be made of the monolithic rectangular parallelepiped that natural icelandspar crystal is made, incident end face, and the outgoing end face, top reflecting surface and bottom reflection face are polished surface; Incident end face is parallel with the outgoing end face, and the top reflecting surface is parallel with the bottom reflection face.
2. one kind is used negative refraction as claimed in claim 1 unit polarizing-splitting prism, and the wavelength coverage that it is characterized in that incident light is 300-1800nm, prismatic light shaft angle α
oSpan is the 25-65 degree, and during light incident crystal, e light must negative refraction take place at the incident end face place, and the incident angle span is the 1-8 degree.
3. negative refraction according to claim 1 and 2 unit polarizing-splitting prism is characterized in that the length-aperture ratio of prism is 17.
4. polarized beam splitting method that uses negative refraction and bireflection, it is characterized in that with wavelength coverage being that the light beam of 300-1800nm is that the incident angle of 1-8 degree is injected negative refraction unit polarizing-splitting prism with span, described negative refraction unit polarizing-splitting prism is to be made of the monolithic rectangular parallelepiped that natural icelandspar crystal is made, incident end face, the outgoing end face, top reflecting surface and bottom reflection face are polished surface; Incident end face is parallel with the outgoing end face, and the top reflecting surface is parallel with the bottom reflection face;
Prismatic light shaft angle α
oSpan is the 25-65 degree;
During light incident crystal, negative refraction must take place at the incident end face place in e light;
Utilize the attribute of non-ordinary light negative refraction in the uniaxial crystal, make natural light be divided into o, e light at the incident end face of rectangular parallelepiped uniaxial crystal, and respectively with positive and negative angular spread; O, e light are transmitted to two the reflecting surface places adjacent with incident end face respectively total reflection take place respectively; O, e reflected light through shape after the outgoing end face outgoing of crystal in an angle, to obtain the effect of the wide angle beam splitting of o, e.
5. polarized light beam splitting method according to claim 4 is characterized in that being applicable to that all can produce the single axial birefringence crystal of light negative refraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102332098A CN103293586A (en) | 2013-06-13 | 2013-06-13 | Negative refraction single-element polarization beam-splitting prism and polarization beam-splitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102332098A CN103293586A (en) | 2013-06-13 | 2013-06-13 | Negative refraction single-element polarization beam-splitting prism and polarization beam-splitting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103293586A true CN103293586A (en) | 2013-09-11 |
Family
ID=49094773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102332098A Pending CN103293586A (en) | 2013-06-13 | 2013-06-13 | Negative refraction single-element polarization beam-splitting prism and polarization beam-splitting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103293586A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782690A (en) * | 2010-02-20 | 2010-07-21 | 曲阜师范大学 | Unit extraordinary refraction rochon prism and extraordinary refraction polarized beam splitting method |
| CN102401923A (en) * | 2011-11-24 | 2012-04-04 | 福建福晶科技股份有限公司 | Polarizing prism structure |
| CN102839421A (en) * | 2011-06-21 | 2012-12-26 | 中国科学院理化技术研究所 | Borate birefringent crystal for ultraviolet and deep ultraviolet, and growth method and application thereof |
-
2013
- 2013-06-13 CN CN2013102332098A patent/CN103293586A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782690A (en) * | 2010-02-20 | 2010-07-21 | 曲阜师范大学 | Unit extraordinary refraction rochon prism and extraordinary refraction polarized beam splitting method |
| CN102839421A (en) * | 2011-06-21 | 2012-12-26 | 中国科学院理化技术研究所 | Borate birefringent crystal for ultraviolet and deep ultraviolet, and growth method and application thereof |
| CN102401923A (en) * | 2011-11-24 | 2012-04-04 | 福建福晶科技股份有限公司 | Polarizing prism structure |
Non-Patent Citations (1)
| Title |
|---|
| 吴闻迪: "基于单轴晶体负折射现象的新型偏光器件的研制", 《中国优秀硕士学位论文全文数据库》, vol. 2009, no. 9, 15 September 2009 (2009-09-15) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201732177U (en) | Novel polarizing and beam-splitting prism | |
| CN109283696A (en) | A kind of polarization beam splitting device based on 45 ° of inclined optical fiber gratings | |
| CN203490436U (en) | Electro-optics Q-switch optical switch | |
| CN101587202B (en) | Polarizer of optical body | |
| CN104656264A (en) | Polarization beam splitting and combining device | |
| CN103345098B (en) | Based on pulse strenching and the pressure texture of crystal birefringence | |
| CN101320135A (en) | Polarization beam splitter prism | |
| CN103345014A (en) | Polarizing prism based on alpha-BaTeMo 2O9 crystal | |
| CN103293586A (en) | Negative refraction single-element polarization beam-splitting prism and polarization beam-splitting method | |
| CN101782690B (en) | Polarized beam splitting prism and method | |
| CN102200597A (en) | Air gap type BBO (Barium Boron Oxide) laser polarizing prism | |
| CN102073143A (en) | Crystal polarizing, combining and splitting device | |
| US8818193B2 (en) | Multichannel tunable optical dispersion compensator | |
| US20110261457A1 (en) | Optical device configured by bonding first and second transparent members having birefringent property | |
| CN110456519A (en) | Polarization beam apparatus and preparation method thereof, polarization beam splitting method | |
| CN108803062A (en) | Single axial birefringence crystal polarization laser bundling device | |
| CN213423520U (en) | High-power optical fiber two-stage isolator integrating return light monitoring | |
| CN102411161B (en) | Wire polarizer | |
| CN208621863U (en) | A kind of reflection-type optical fiber laser isolator | |
| CN104777543B (en) | Multiple beam outgoing ahrens prism | |
| US3700308A (en) | Light polarizing prism of zircon | |
| CN203337846U (en) | Polarizing prism based on alpha-BaTeMo2O9 crystals | |
| CN108828798A (en) | A kind of high power reflection-type optical fiber laser isolator | |
| CN204557002U (en) | High-isolation optical-fiber laser isolator | |
| CN201345494Y (en) | OPO laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |