CN206147130U - Cellular dimpling grating - Google Patents
Cellular dimpling grating Download PDFInfo
- Publication number
- CN206147130U CN206147130U CN201620512245.7U CN201620512245U CN206147130U CN 206147130 U CN206147130 U CN 206147130U CN 201620512245 U CN201620512245 U CN 201620512245U CN 206147130 U CN206147130 U CN 206147130U
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- Prior art keywords
- dimpling
- grating
- cellular
- mirror
- utility
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1842—Gratings for image generation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1857—Manufacturing methods using exposure or etching means, e.g. holography, photolithography, exposure to electron or ion beams
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The utility model relates to an anti -fake technical field discloses a cellular dimpling grating, including a substrate, the substrate surface is equipped with a plurality of regular hexagon's dimpling mirror, and respectively the connection is arranged in succession to this dimpling mirror, constitutes cellular texture's array layer, and this array layer surface is equipped with the photocuring layer, the utility model discloses an effect that cellular dimpling grating made dimpling 3D stereo imaging reach no dead angle blind spot has improved the luminousness, makes later stage stereo imaging definition promote greatly, and its high temperature resistant (moulding plastics in the mould), anti -scratch, but the wide application mould plastics in the imd of a large amount of industrial products plastic products 3D mould, its manufacturing method commonality is very strong, production energy -conservation is showing, the precision is promoted by a wide margin, the prescription is fast, but diversified produces.
Description
Technical field
This utility model is related to field of anti-counterfeit technology, refers in particular to a kind of cellular dimpling grating and preparation method thereof.
Background technology
The optics being made up of a large amount of wide equidistant parallel slits is referred to as grating（grating）.Existing grating is pressed
Special lenses form is divided into planar lens grating, cylindrical lens raster and spherical lenss grating etc., and they press respective ad hoc rule
Grating material made by arrangement is referred to as slit grating, column mirror grating and spheric grating (or round dot grating).Wherein, slit grating by
It is single in grating species, and need additional light source auxiliary the reason such as just can tell on, being not suitable for high-volume is used for stereosopic printing；
And column mirror grating effect is abundant, it is not necessary to which additional light source can tell on, and it is suitable to high-volume printing making.So, at present,
Space pattern makes and typically adopts column mirror grating, but the view direction of column mirror grating is extremely strict, only one of which vertical direction, should
Reading randomness to people has unsurmountable defect.And spheric grating (round dot grating), can be with comprehensive observation solid shadow
Picture, is also the technological core of naturally holographic three-dimensional displaying under visible ray, is the direction of grating technology development from now on.
Round dot grating is dimpling mirror grating, is the space pattern by dimpling lens array structure fabrication dot matrix, can be 360
Degree scope produces the third dimension of image；When beholder moves up and down, can be appreciated that scenery upside in picture, downside, left side,
The part that right side was originally blocked, pattern is presented 360 degree of stereoeffects；Round dot grating surface is not that striped is constituted, but by tight
" raised points " little dimpling mirror of solid matter row is constituted, and each convex lens is a miniature convex lens magnifier, focuses on lattice raster
Lower surface.Using the principle of dimpling mirror grating stereo array pattern three-dimensional imaging, it is widely used in anti-counterfeit field, it is such as flourishing
Countries use is on currency security（Such as the US dollar of new edition 100）；The currency such as South Korean Won and Thai Baht employs dimpling grating as safety
Line is false proof；Hewlett-Packard is applied on trademark anti-counterfeit.
If however, a diameter of below the 0.03mm of dimpling grating lens, the live width of design is then required at 2 microns（2μm）,
And current international and domestic printing industry, highest printing precision can only achieve 0.05mm（50μm）, it is impossible to carry out direct any mode
Conventional printing, therefore, make to be applied to the false proof production of dimpling mirror and base map printing, become the design production system of international and national
In making, bottleneck and the printing difficult problem of normal conventional mode of printing；Therefore, at present the spot diameter of domestic common round dot grating exists
0.3mm, printing precision is in more than 0.06mm（I.e. dpi resolution is below 4800）, manufacture machining accuracy it is very low, so, this
Class major diameter（0.3mm) dimpling grating cannot function as anti-fake product.
In addition, tangent line can not be eliminated between the circle and circle of dimpling mirror grating, i.e., array mold can not be leaned between circular convex lens 3
Hold together, existing can not change the blind area 4 that base map is solid by dimpling mirror, and these blind areas 4 are without dimpling mirror grating stereo effect
Part so that product quality has flaw, as shown in Figure 3-4.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art and provide a kind of cellular dimpling grating
And preparation method thereof, the cellular dimpling grating makes dimpling 3D three-dimensional imagings reach the effect without dead angle blind spot, improves printing opacity
Rate, greatly promotes later stage three-dimensional imaging definition；And its high temperature resistant（In-mould injection）, it is anti-scratch, can be widely applied to a large amount of
Industrial products imd plastic in-mould injections, its manufacture method versatility is very strong, produces obvious energy conservation, and precision is obtained greatly
Amplitude is lifted, and timeliness is fast；Diversified can be produced.
For achieving the above object, this utility model is adopted the following technical scheme that：
A kind of cellular dimpling grating, including a base material, the substrate surface is provided with some orthohexagonal dimpling mirrors, respectively
The dimpling mirror continuous arrangement connection, constitutes the array layer of alveolate texture, and the array layer surface is provided with photocurable layers.
The top surface of each dimpling mirror is respectively a crowning, the equal globulate curved surface of each crowning.
Adjacent Bian Hejiao is brought into close contact between each dimpling mirror, and the diameter of each dimpling mirror is less than or equal to 20 μm.
The photocurable layers are a structure sheaf that rear formation in array layer surface is spread evenly across using UV optic-solidified adhesives.
The beneficial effects of the utility model are as follows：
1st, cellular dimpling grating of the present utility model, according to 45 °/60 ° array dimpling solid video picture principles of physical opticses
（Corresponding digital coordinate graphic is acted on by N unit dimpling arrays, dot matrix dimpling is carried out and is amplified to form 360 ° of stereoscopic full views figures
Picture）To research and develop foundation, using cellular dimpling, effect of the dimpling 3D three-dimensional imagings without dead angle blind spot is reached, dimpling grating
Material transmissivity more than 95%, so as to greatly promote later stage three-dimensional imaging definition；
Surface is coated with UV photocurable layers, and the case hardness for making material has reached more than 2H hardness, high temperature resistant（Note in mould
Modeling）, it is anti-scratch, and base material（The base material that PC, PET, PTU, PVC etc. are used cooperatively with grating）Physical property will not change, toughness,
Tensile property etc. still etc. maintains a good state, and can be widely applied to the imd plastic in-mould injections of substantial amounts of industrial products,
Such as make false proof optical element.
2nd, manufacture method of the present utility model, design document is the high-resolution photoetching cad files of 54000dpi, is then made
Produce nano level light and paint the film or chromium plate（Light shield）, photosensitive etching electroforming mould is carried out, versatility is very strong, can be in any material
High-resolution dimpling grating is produced on material（It is more than 1200 mesh）And straight burr grating（More than 200lpi）, produce energy-conservation and show
Write, grating material is coated line production using photoetching mould, power consumption energy resource consumption only has plate-drawing machine to manufacture grating material energy consumption
30% less than；The low precision and expensive processing cost of the machine tool mechanical processing for falling behind are eliminated, high precision, timeliness is fast；
A nanometer dimpling is reached using nanoscale lithography etching manufacture mould, so as to the material height for having reached truly is prevented
Pseudo- grade, honeycomb dimpling circular diameter is 0.008mm, and the precision of dimpling array improves 37.5 times（It is general with existing non-cellular shape
Logical dimpling grating compares）.
Using photocuring coating technique, diversified can be produced, eliminated the unicity of 3D materials in traditional handicraft
（Traditional grating fabrication techniques are plate-drawing machines, and a kind of machine can only produce a kind of material of fixed grating data）.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of the cellular dimpling grating of this utility model.
Fig. 2 is the longitudinal profile structure schematic of the cellular dimpling grating of this utility model.
Fig. 3 is existing round dot grating planar structural representation.
Fig. 4 is the three-dimensional blind spot dead angle schematic diagram of existing round dot grating planar structure.
Drawing reference numeral explanation：
1- base materials；2- dimpling mirrors；3- circle convex lens；4- blind areas.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail：
As Figure 1-4, this utility model is with regard to a kind of cellular dimpling grating, including a base material 1, and the surface of base material 1 sets
There are some orthohexagonal dimpling mirrors 2, respectively the continuous arrangement of dimpling mirror 2 connection, constitutes the array layer of alveolate texture, the array
Layer surface is provided with photocurable layers（It is not shown）, wherein, photocurable layers are spread evenly across array layer table for one using UV optic-solidified adhesives
The structure sheaf formed after on face.
As Figure 1-4, the top surface of each dimpling mirror 2 is respectively a crowning, the equal globulate curved surface of each crowning, each dimpling
Adjacent Bian Hejiao is brought into close contact between mirror 2, and the diameter of each dimpling mirror 2 is less than or equal to 20 μm, the array between each dimpling mirror 2
Angle be 60 °, wherein it is desired to explanation, due to three-dimensional base map feature sizes must below 10 μm, therefore, false proof use
Dimpling mirror diameter is in below 0.02mm.
A kind of cellular dimpling grating disclosed in this utility model, solves the defect of round dot micro-convex structure, design
Array pattern can be in 360 degree of range of observation without blind angle, and burelage can all reflect stereoeffect.
Further, the manufacture method of a kind of cellular dimpling grating disclosed in this utility model, its manufacture method step
It is rapid as follows：
1）Map file design output：Required according to the making of cellular dimpling grating, design 3D material molds CAD diagram shelves, and
Output light paints the film or chromium plate；
2）Nickel plate prepares：The spin coating photoresist in nickel plate, then source of parallel light exposure is carried out to nickel plate；
3）Etching development：Using step 1）Light paint the film or chromium plate to step 2）Nickel plate carry out Lithography Etching, obtain
Mother matrix with cellular round dot；
4）Mother matrix is transferred：By step 3）Mother matrix carry out being transferred on base material 1, make cellular dimpling grating；
Wherein, cellular dimpling grating is above-mentioned cellular dimpling grating.
Further, step 1）Making require to be that diameter is carried out into array less than or equal to 20 μm of dimpling mirror 2, it is each micro-
Array angle between convex lens 2 is 60 °.
Further, step 1）Painted below the film, or 5 microns of output linewidth with 25400dpi resolution accuracy output lights
Chromium plate.
Further, step 2）Source of parallel light exposure is carried out to nickel plate using parallel exposing machine.
Further, step 3）In the reverse side coating chromatic photoresist of dimpling mirror 2, then enter continuous tunnel furnace 110-120 degree temperature general
Coating is dried.
Further, step 4）Mold is arranged on precision optics coating machine, is that 75 and transparency reach with denseness
97% UV optic-solidified adhesives are coated to the surface of dimpling mirror 2, obtain cellular dimpling grating.
Yet further, base material 1 is preferably the transparent materials such as puc, pet, tpu, pu, and the use of concrete material can be according to reality
Border needs to be selected, and here does not give from limit.
This utility model manufactures dimpling mirror grating using UV photocurings, and its accuracy of manufacture mainly determines the manufacture of early stage mould
Precision, using photoresist exposure imaging after, fine grading is carried out in nickel plate（From major diameter to minor diameter, from outside to inside）Erosion
Carve, then, by mould（I.e. chromium plate/light paints the film）On the transfer roll of optics coating machine, production dimpling mirror is coated
Grating front, later process micro-embossing security pattern and micro- word.
According to said method, 360 ° of panorama 3D designs can be carried out and made, be comprised the following steps that：
1. 3D panorama G- Designs are carried out with resolution as the live width of 5 microns of live width；
2. design after the completion of original text, exported according to the resolution of 25400dpi with vector file, live width is 5 microns of encryption 3D
Pattern chromium plate；
3. colored photoresist is allocated, and with CMYK, this 4 tone allots arbitrary hue；
4. colored photoresist is coated on the 360 ° of cellular round dot grating reverse side made；
5. coated colored Other substrate materials are put into into baking box carries out 120 ° of bakings, and baking time is about 20 minutes；
6., after naturally cool to room temperature, chromium plate is placed on grating and is exposed 15 seconds with directional light, it is aobvious with the injection of 2% sodium carbonate
Shadow；
7. colored photoresist obtains the characteristic of positive and negative glue, 360 ° of panorama 3D high definitions of a colour after parallel photodevelopment
3D figures are just manufactured.
Above-mentioned 360 ° of full-view stereo figures instead of traditional ink printing using colored photoresist developing three-dimensional imaging, real
The bottleneck that ultrahigh resolution can not print is showed, the photoresist of environmental protection instead of chemical solvent the printing-ink of pollution；
Because photoresist developing is without the need for consumption electric power resource, so as to reach the effect of environmental protection and energy saving.
The above is only, to preferred embodiment of the present utility model, not scope of the present utility model to be defined,
Therefore on the premise of without departing from this utility model design spirit, this area ordinary skill technical staff is to described in the utility model
Equivalence changes or decoration that construction, feature and principle are made, all should fall in the protection domain that this utility model is applied for a patent.
Claims (4)
1. a kind of cellular dimpling grating, an including base material, it is characterised in that：The substrate surface is provided with some orthohexagonal
Dimpling mirror, respectively the dimpling mirror continuous arrangement connection, constitutes the array layer of alveolate texture, and the array layer surface is provided with photocuring
Layer.
2. cellular dimpling grating according to claim 1, it is characterised in that：The top surface of each dimpling mirror is respectively one
Crowning, the equal globulate curved surface of each crowning.
3. cellular dimpling grating according to claim 1, it is characterised in that：Between each dimpling mirror adjacent side and
Angle is brought into close contact, and the diameter of each dimpling mirror is less than or equal to 20 μm.
4. cellular dimpling grating according to claim 1, it is characterised in that：The photocurable layers are one solid using UV light
Change the structure sheaf formed after glue is spread evenly across in array layer surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510287881.4A CN105005106A (en) | 2015-06-01 | 2015-06-01 | Honeycomb slightly convex grating, and preparation method and application thereof |
| CN2015102878814 | 2015-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206147130U true CN206147130U (en) | 2017-05-03 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510287881.4A Pending CN105005106A (en) | 2015-06-01 | 2015-06-01 | Honeycomb slightly convex grating, and preparation method and application thereof |
| CN201620512245.7U Expired - Fee Related CN206147130U (en) | 2015-06-01 | 2016-05-31 | Cellular dimpling grating |
| CN201610373812.XA Pending CN105866869A (en) | 2015-06-01 | 2016-05-31 | Cellular micro-convex optical grating and manufacturing method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510287881.4A Pending CN105005106A (en) | 2015-06-01 | 2015-06-01 | Honeycomb slightly convex grating, and preparation method and application thereof |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610373812.XA Pending CN105866869A (en) | 2015-06-01 | 2016-05-31 | Cellular micro-convex optical grating and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (3) | CN105005106A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866869A (en) * | 2015-06-01 | 2016-08-17 | 陈昭红 | Cellular micro-convex optical grating and manufacturing method thereof |
| CN108682042A (en) * | 2018-04-24 | 2018-10-19 | 河海大学 | Three-D grain pattern synthetic method based on the setting of dragonfly visual imaging model |
| CN109116455A (en) * | 2017-12-29 | 2019-01-01 | 珠海迈时光电科技有限公司 | Diffraction optical element and optical device comprising identical diffraction optical element |
| CN111251764A (en) * | 2020-03-12 | 2020-06-09 | 石狮市冠鑫反光材料有限公司 | 3D stereograph and hot-pressing manufacturing method and application thereof |
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| CN105865637B (en) * | 2016-04-01 | 2018-08-24 | 中北大学 | A kind of spaceborne high angular resolution laser warning detection method and device |
| CN105845023A (en) * | 2016-05-04 | 2016-08-10 | 何炎权 | Anti-counterfeiting mark encryption method, anti-counterfeiting mark encryption device and manufacturing method of anti-counterfeiting mark encryption device |
| WO2018039277A1 (en) | 2016-08-22 | 2018-03-01 | Magic Leap, Inc. | Diffractive eyepiece |
| CN106443852A (en) * | 2016-10-28 | 2017-02-22 | 北京康得新三维科技有限责任公司 | Spherical surface optical grating |
| EP3542213A4 (en) | 2016-11-18 | 2020-10-07 | Magic Leap, Inc. | Waveguide light multiplexer using crossed gratings |
| CN115586652A (en) | 2017-01-23 | 2023-01-10 | 奇跃公司 | Eyepiece for virtual, augmented or mixed reality systems |
| WO2020048129A1 (en) | 2018-09-07 | 2020-03-12 | Huawei Technologies Co., Ltd. | High refractive index waveguide for augmented reality |
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| CN110780365A (en) * | 2019-10-29 | 2020-02-11 | 湖北兴龙包装材料有限责任公司 | Method for manufacturing micro-lens array by photoetching and electroforming process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850680B (en) * | 2010-05-24 | 2012-06-06 | 苏州苏大维格光电科技股份有限公司 | Safety film with dynamic three-dimensional effect |
| CN102514443B (en) * | 2011-12-09 | 2015-04-29 | 中钞特种防伪科技有限公司 | Optical anti-counterfeiting element |
| CN104575257A (en) * | 2015-01-19 | 2015-04-29 | 深圳市深大极光科技有限公司 | Anti-counterfeiting film |
| CN105005106A (en) * | 2015-06-01 | 2015-10-28 | 陈昭红 | Honeycomb slightly convex grating, and preparation method and application thereof |
-
2015
- 2015-06-01 CN CN201510287881.4A patent/CN105005106A/en active Pending
-
2016
- 2016-05-31 CN CN201620512245.7U patent/CN206147130U/en not_active Expired - Fee Related
- 2016-05-31 CN CN201610373812.XA patent/CN105866869A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866869A (en) * | 2015-06-01 | 2016-08-17 | 陈昭红 | Cellular micro-convex optical grating and manufacturing method thereof |
| CN109116455A (en) * | 2017-12-29 | 2019-01-01 | 珠海迈时光电科技有限公司 | Diffraction optical element and optical device comprising identical diffraction optical element |
| CN108682042A (en) * | 2018-04-24 | 2018-10-19 | 河海大学 | Three-D grain pattern synthetic method based on the setting of dragonfly visual imaging model |
| CN108682042B (en) * | 2018-04-24 | 2020-08-11 | 河海大学 | Dragonfly visual imaging model-based three-dimensional texture pattern synthesis method |
| CN111251764A (en) * | 2020-03-12 | 2020-06-09 | 石狮市冠鑫反光材料有限公司 | 3D stereograph and hot-pressing manufacturing method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105005106A (en) | 2015-10-28 |
| CN105866869A (en) | 2016-08-17 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20210531 |