CN105957446B - A kind of reflective membrane and automotive number plate containing dynamic solid helix - Google Patents
A kind of reflective membrane and automotive number plate containing dynamic solid helix Download PDFInfo
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- CN105957446B CN105957446B CN201610534526.7A CN201610534526A CN105957446B CN 105957446 B CN105957446 B CN 105957446B CN 201610534526 A CN201610534526 A CN 201610534526A CN 105957446 B CN105957446 B CN 105957446B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/10—Registration, licensing, or like devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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Abstract
The invention discloses a kind of reflective membranes containing dynamic solid helix, it includes reflective membrane main body, it floats respectively on opposite two surfaces of reflective membrane main body and is provided with an at least curve, helix is composed of with respect at least curve on two surfaces, helix is decomposed into x, z to reciprocating motion and synthesis from y to movement, plane of the x y planes residing for reflective membrane main body, z is to perpendicular to x y planes, helix is in x, z to reciprocating motion in form the resultant motion track of closed curve or straightway in one cycle, closed curve is unfolded into movement in y along y to being stretched.The invention also discloses a kind of automotive number plates.The present invention can meet the low cost of reflective membrane and high safety requirement, it makes without increasing material on reflective membrane, also it is not required to the printed pattern inside reflective membrane, helix cannot be easily recognized by the human eye by the device replications such as scanner, camera, the optical characteristics of the dynamic solid helix of made reflective membrane.
Description
Technical field
The present invention relates to a kind of reflective membranes, and in particular to a kind of reflective membrane containing dynamic solid helix and motor-driven license number
Board.
Background technology
Automotive number plate is effective voucher that public security traffic control department carries out vehicle system administration, number plate is identified main
Using technical characteristic contained by reflective membrane as foundation, generally use fluorescent graphic prints special mark etc. inside reflective membrane interlayer
Mode, the hierarchy of skill is not high, it is difficult to the problems such as effectively taking precautions against deck.
Patent document CN499285Y proposes a kind of intelligent anti-counterfeiting technology that electronic chip is press-fitted in number plate substrate, electricity
Storage has specific identification code in sub- chip, and traffic control personnel are scanned this chip by handheld device, you can are corresponded to
The various data of car plate.This method needs to establish huge detection network, and input is huge.Patent document CN104494533A is carried
Going out a kind of QR Quick Response Codes for stealth material being used to make in automotive number plate, stealth material is the aqueous invisible printing ink of Ultraluminescence,
Each QR Quick Response Codes assign each product and uniquely encode, and road surface traffic police inquires number plate information by dedicated scan equipment.It is but purple
Outer fluorescent material belongs to routine techniques, and what technical matters was implemented is not difficult.Patent document CN2363337 is used in inside reflective membrane
Make thin film, on the film thermoprint have hologram pattern, this method increase reflective membrane cost of manufacture, and hologram pattern needs
Close-ups are wanted, while the manufacturing technology of hologram is popularized, therefore be difficult that there is uniqueness using common hologram on number plate
Property and safety.
Invention content
In order to solve the above technical problem, the present invention provides a kind of reflective membranes containing dynamic solid helix and motor-driven
Number plate to meet the low cost of reflective membrane and high safety requirement, makes without increasing material on reflective membrane, is also not required to reflective
Printed pattern inside film, helix cannot be by the device replications such as scanner, camera, the dynamic solid spiral shell of made reflective membrane
The optical characteristics of spin line is easily recognized by the human eye.
In order to achieve the above object, technical scheme is as follows：
A kind of reflective membrane containing dynamic solid helix, including reflective membrane main body, opposite two tables of reflective membrane main body
It floats respectively on face and is provided with an at least curve, helix, helix point are composed of with respect at least curve on two surfaces
Solve for x, z to reciprocating motion and y to the synthesis of movement, x-y plane is the plane residing for reflective membrane main body, and z is to perpendicular to x-y
Plane, helix x, z to reciprocating motion in form the resultant motion rail of closed curve or straightway in one cycle
Mark, closed curve are unfolded into movement in y along y to being stretched.
Further, above-mentioned helix has parametric equation (1)：
Wherein, A, B x, z directions amplitude, phase constant w0X-z-plane resultant motion curvilinear path is adjusted, y directions
v0Movement expansion so that closed curve is stretched in y directions.
Further, in above-mentioned parameter equation (1), x to reciprocating motion for simple harmonic motion, z values are constant, helix packet
The periodic sinusoidal curve or cosine curve of floating and sinking are included, floating curve parametric equation (2) is as follows：
Subsidence curve parametric equation (3) is as follows：
In above formula, A1, A2For the amplitude of sinusoidal line,For initial bit phase, v0, y0, z1, z2 are constant.
Further, in above-mentioned parameter equation (2) and (3), when position phase constant w1=0, w2=π, helix includes floating
Sine curve is tilted with the space of sinking, is in 45 ° of inclinations angle with x-y plane.
Further, in above-mentioned parameter equation (1), x, z to reciprocating motion for simple harmonic motion, helix includes floating three
It ties up helical curve and sinking three-dimensional spiral curve, the parametric equation (4) of floating three-dimensional spiral curve is as follows：
The parametric equation (5) of sinking three-dimensional spiral curve is as follows：
Wherein, B1 and B2 is the amplitude of floating curve and subsidence curve in z directions.
Further, above-mentioned floating three-dimensional spiral curve and sinking three-dimensional spiral curve are projected as being closed in x-z-plane
Curve.
Further, above-mentioned closed curve is symmetrical closed curve.
Further, above-mentioned closed curve is ellipse, and elliptical major and minor axis parameter is respectively the amplitude in x, z direction, wherein
Orientation of the three-dimensional spiral curve major and minor axis in space is adjusted in position phase constant.
Further, above-mentioned floating three-dimensional spiral curve and sinking three-dimensional spiral curve are in the vertical forward direction of reflective membrane plane
Drop shadow curve is periodic wave streakline.
Automotive number plate including number plate main body, is provided with as described above a kind of vertical containing dynamic in the number plate main body
The reflective membrane of body helix.
In the reflective membrane of the present invention, helix has the geometric properties of above-mentioned equation description, anti-observed by eye-observation
The bifilar helix of light film has following effect：1) it can be seen that wherein one of bifilar helix is suspended in reflective membrane surface, in addition
Reflective membrane lower face is sunk under one helix, there is stereoscopic effect；Mobile observation floating curve, the spiral for floating and sinking
The spatial position change effect of line is the same just as daily observation real space three-dimension object；2) result observed is floating figure
For shape in the drop shadow curve of reflective membrane plane, drop shadow curve's shape meets general geometrical ray projection law；During mobile observation, two
Relative motion will occur on reflective membrane plane for drop shadow curve；3) the floating curve or two-dimensional projection's picture observed centainly are regarding
Human viewable in rink corner, observable visual field scope are preferably no less than ± 10 °, and being beyond visual field scope floating graphic can not
See.
Therefore, the present invention makes dynamic solid helix on reflective membrane, and dynamic solid helix can be in natural environment light
It is identified by the human eye under irradiation, the relatively reflective film surface of the helix identified has the stereoscopic effect for floating or sinking, and works as observation
When person moves viewing, helix has the characteristic of dynamic change.So that the present invention can meet reflective membrane low cost and
High safety requirement makes without increasing material on reflective membrane, is also not required to the printed pattern inside reflective membrane, helix cannot be swept
The device replications such as instrument, camera are retouched, the optical characteristics of the dynamic solid helix of made reflective membrane is easily known by human eye
Not.
Description of the drawings
Fig. 1 be the embodiment of the present invention in have float and sinking effect three-dimensional (solid) bifilar helix reflective membrane and its
The structure diagram of number plate.
Fig. 2 be the embodiment of the present invention in dynamic solid bifilar helix reflective film surface upright projection curve synoptic diagram.
Fig. 3 is to be flipped up the bifilar helix geometry site schematic diagram that number plate is observed in the embodiment of the present invention.
Fig. 4 is to downwardly turn over the bifilar helix geometry site schematic diagram that number plate is observed in the embodiment of the present invention.
Fig. 5 is to overturn the bifilar helix geometry site schematic diagram that number plate is observed to the left in the embodiment of the present invention.
Fig. 6 is to overturn the bifilar helix geometry site schematic diagram that number plate is observed to the right in the embodiment of the present invention.
Fig. 7 is that there is floating and the three-dimensional reflective membrane of bifilar helix of sinking and its structure of number plate to show in the embodiment of the present invention
It is intended to.
Fig. 8 is to overturn the three-dimensional bifilar helix drop shadow curve geometric position that number plate is observed in the embodiment of the present invention to the left to close
It is schematic diagram.
Fig. 9 is to overturn the bifilar helix drop shadow curve geometry site that number plate is observed to the right in the embodiment of the present invention to show
It is intended to.
Figure 10 is the reflective membrane and its number plate for having in the embodiment of the present invention floating and sinking tilted two-dimensional bifilar helix
Structure diagram.
Figure 11 is to be flipped up the tilted two-dimensional bifilar helix geometry site that number plate is observed in the embodiment of the present invention
Schematic diagram.
Figure 12 is to downwardly turn over the tilted two-dimensional bifilar helix geometry site that number plate is observed in the embodiment of the present invention
Schematic diagram.
Figure 13 is to overturn the tilted two-dimensional bifilar helix geometry site that number plate is observed to the right in the embodiment of the present invention
Schematic diagram.
Figure 14 is to overturn the tilted two-dimensional bifilar helix geometry site that number plate is observed to the left in the embodiment of the present invention
Schematic diagram.
Figure 15 is the closed curve schematic diagram for having in the embodiment of the present invention symmetrical structure.
Figure 16 be have in the embodiment of the present invention floating three-dimensional spiral line and sinking two-dimensional helical line reflective membrane and its number
The structure diagram of board.
Figure 17 be have in the embodiment of the present invention floating two-dimensional helical line and sinking three-dimensional spiral line reflective membrane and its number
The structure diagram of board.
Figure 18 is to have the reflective membrane and its number plate of suspension and sinking bifilar helix in other positions in the embodiment of the present invention
Structure diagram.
Figure 19 is number plate bifilar helix observation visual angle and viewing distance relation schematic diagram in the embodiment of the present invention.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
The present embodiment essentially describes a kind of reflective membrane containing dynamic solid bifilar helix, and double helix visually has one
Reflective membrane surface is floated on item, and reflective membrane lower face is sunk under another, the stereoscopic vision effect for floating and sinking
Hereinafter collectively referred to as float.Mobile observation floating bifilar helix has the view effect of dynamic change, the double helix knot observed
Structure parameter and the visual characteristic having will be described in detail below.
The parametric equation of float in space helical curve has following form：
Spatially spiral line can be analyzed to the synthesis of following movement：X, the reciprocating motion in z directions and y directions is at the uniform velocity (or non-
At the uniform velocity) move.X-y plane is reflective membrane plane, and z directions are perpendicular to reflective membrane plane.A in parametric equation, B x, z directions
Amplitude.X, z directions reciprocating motion so that the resultant motion track in a cycle for closed curve or straightway, phase constant
w0Adjust x-z-plane resultant motion curvilinear path, the v in y directions0Movement expansion so that closed curve is stretched in y directions, forms
The helical curve of spatial distribution.
In the reflective membrane of the present embodiment, helix has the geometric properties of above-mentioned equation description, observed by eye-observation
The bifilar helix of reflective membrane has following effect：1) it can be seen that wherein one of bifilar helix is suspended in reflective membrane surface, separately
Reflective membrane lower face is sunk under an outer helix, there is stereoscopic effect；Mobile observation floating curve, the spiral shell for floating and sinking
The spatial position change effect of spin line is the same just as daily observation real space three-dimension object；2) result observed is floats
For figure in the drop shadow curve of reflective membrane plane, drop shadow curve's shape meets general geometrical ray projection law；During mobile observation,
Relative motion will occur on reflective membrane plane for Liang Tiao drop shadow curves；3) the floating curve or two-dimensional projection's picture observed are certain
Human viewable in field angle, observable visual field scope are preferably no less than ± 10 °, beyond visual field scope floating graphic for not
It can be seen that.
Therefore, the present embodiment makes dynamic solid helix on reflective membrane, and dynamic solid helix can be in natural environment
It is identified by the human eye under light irradiation, the relatively reflective film surface of the helix identified has the stereoscopic effect for floating or sinking, and works as sight
When the person of examining moves viewing, helix has the characteristic of dynamic change.So that the present embodiment can meet reflective membrane it is low into
This and high safety require, and are made without increasing material on reflective membrane, are also not required to the printed pattern inside reflective membrane, helix cannot
By device replications such as scanner, cameras, the optical characteristics of the dynamic solid helix of made reflective membrane is easily by human eye
It is identified.
It will be described in detail below by specific embodiment.
Embodiment 1
In floating bifilar helix parametric equation (1), the reciprocating motion in x directions is preferably simple harmonic motion, and z values are normal
Amount contains a kind of periodic sinusoidal or cosine curve to float and sink, floating and subsidence curve parametric equation on reflective membrane
It is as follows：
Floating curve：Subsidence curve：
In above formula, A1, A2For the amplitude of sinusoidal line,For initial bit phase, v0, y0, z1, z2 are constant.Citing,
Parameter A1=B1=10mm,V0=20mm/s, y0=30mm, w=1, z1=20mm, z2=20mm then float just
Chord curve is 20mm relative to reflective membrane surfactant suspension height, and subsidence curve is 20mm relative to reflective membrane Surface Subsidence height,
It floats in the orientation viewed in plan that number plate horizontal plane (or perpendicular) has parallax and sinking sine curve, floating is imitated
As shown in Figure 1,1 is reflective membrane plane to fruit in figure, and 1a is floating curve, and 1b is subsidence curve.Mobile observation floating curve, it is empty
Between position variation relation as daily dynamic observation real space three-dimension object.
Preferably, the floating sine curve of reflective membrane has 360 ° of full parallaxes, and observer can in arbitrary orientation plane
Observe floating stereoscopic vision and real space dynamic change effect.
Another preferred embodiment, reflective membrane have parallax in the horizontal direction without parallax on perpendicular direction.It is horizontal
Direction is reflective membrane long side direction as shown in Figure 2, and vertical direction is then short side direction.As before, it is only capable of on long side direction
It observes two-dimensional projection's curve of floating curve, in dynamic observation, there is maximum motion-change effect between drop shadow curve.
1a and 1b is forward projection curve of the floating sinusoidal line in vertical reflective membrane plane in attached drawing 2.It is clear to, drop shadow curve 1a and floating
Moving curve 1b is the different eye responses of same target.Curve 1a and 1b is located in the same band-like position of reflective membrane plane 1 at this time,
The trough of drop shadow curve 1a and 1b are D with reflective 1 long side edge of membrane plane distance, and curve 1a and 1b preferably have identical week
Phase T, amplitude A, curve 1a with 1b there is certain position to differ, and geometry, which shows as attached curve adjacent peaks shown in Fig. 2, to be had
It is spaced P.Each parameter preferred D=25mm, T=27mm, A=10mm, P=7mm.Continuous dynamic observation is reflective in observable visual angle
During film floating moving curve 1a and 1b, floating curve 1a and subsidence curve 1b are in dynamic of the reflective film surface with respect to continuous moving
Visual characteristic.It is embodied in when spinning upside down number plate certain angle and making dynamic observation, two curves 1a and 1b have opposite
The dynamic characteristic of continuous moving.
Attached drawing 3 is drop shadow curve's position relationship when being flipped up number plate to maximum observable visual angle, is flipped up process
In, observer's visible curve 1a is to reflective 1 top continuous moving of film surface, and curve 1b continuous movings downwards.
Attached drawing 4 is then the position relationship of Liang Tiao drop shadow curves when downwardly turning over number plate to maximum observable view position, with
Attached drawing 3 is on the contrary, during dynamic observation, and curve 1a is moved down in reflective membrane plane 1 and curve 1b is then moved up.It is retouched above
The principle of stereoscopic vision and dynamic observation characteristic stated are equally applicable to explain that the vision on reflective membrane with other parallax informations is imitated
It should.Such as reflective membrane floating curve, when having parallax in the horizontal direction, and in vertical direction without parallax, then in water
Square it is able to observe that the spatial sinusoidal of floating upwards, and is only capable of seeing that floating is bent then without three-dimensional sense in vertical direction
The drop shadow curve of line.
It is similar with spinning upside down number plate dynamic observation behavior, when the left and right overturning number plate in observable visual angle, float just
As depicted in figures 5 and 6, wherein attached drawing 5 is overturning number plate to the left to maximum observable visual angle to drop shadow curve's variation relation of the string of a musical instrument
When double helix curve shape and spatial relation, attached drawing 6 then to overturn reflective membrane to the right when drop shadow curve 1a and 1b shape
Shape and spatial relation.
In the present embodiment, floating auger wire shaped be not limited to preferred sinusoidal line or other curves or figure, it is bent
Waveform in the line half period can be the appearances such as parabola, Gaussian Bell line, spline curve similar to curve.With parallax or nothing
The other shapes of helix of orientation viewed in plan of parallax, eye response characteristic meet aforementioned principles.
Embodiment 2
In three-dimensional bifilar helix parametric equation (1), the preferred simple harmonic motion of reciprocating motion in x, z direction can be in reflective membrane
It is upper to make a kind of three-dimensional double helix curve to float and sink, it floats and sinking three-dimensional curve parametric equation is as follows：
Floating curve：Subsidence curve：
B1 and B2 are the amplitude of floating curve and subsidence curve in z directions, and other parameter meanings are in embodiment 1, preferably
Ground, parameter w=1, A1=A2=10mm, B1=B2=10mm,V0=20mm/s, y0=30mm, w1=w2=π/
2, z1=20mm, z2=15mm.By preferred parameter it is found that three-dimensional double helix curve x-z-plane drop shadow curve is circle, directly
Diameter is 10mm.
In the orientation viewed in plan of the reflective membrane with parallax, its stereoscopic effect of the three-dimensional bifilar helix of floating, such as attached drawing 7
It is shown, it floats on above reflective membrane plane, is sunk under 2b below plane on wherein helix 2a.With floating two dimension in embodiment 1 just
String of a musical instrument 1a and 1b is different, and the three-dimensional structure of three-dimensional bifilar helix in itself also being capable of observed person's visual perception.Mobile observation, floats
Three-dimensional bifilar helix, spatial position change relationship is as daily dynamic observation real space three-dimension object.Preferably, it is made
The floating of work and sinking helical curve have 360 ° of full parallaxes, observer arbitrary orientation plane can observe suspension and under
Heavy stereoscopic vision and real space dynamic change effect.
With embodiment 1, another preferred embodiment be in reflective membrane in the horizontal direction, the perpendicular direction without parallax
On have parallax or opposite.Both horizontally and vertically with described in embodiment 1.As before, the energy on parallax directions reflective membrane
It observes true space three-dimensional double helix structure, and is floated on a helix above reflective membrane, sunk under another
Reflective membrane plane.During mobile observation, the position relationship of bifilar helix equally changes with real space three-dimension object, and observer is with day
The normal experience of life is appreciated that.And looked up in the side of no parallax, only it is observed that suspend and sinking helix anti-
The two-dimentional ray cast curve of light membrane plane in mobile observe, has maximum motion-change effect between drop shadow curve.Such as
The horizontal direction described in embodiment 1 has parallax and vertical direction no parallax, the typical visual angle drop shadow effect observed are for example attached
The discribed ripples of Fig. 2, the parameter for describing wave molding feature are also identical.When spinning upside down number plate, the dynamic change of drop shadow curve
Relationship is similar described with attached drawing 3,4.Unlike, when having parallax and vertical direction no parallax information in the horizontal direction,
During the overturning number plate of left and right, the waveform variation of drop shadow curve and geometric position variation relation are as Figure 8,9.It is clear to, due to
The three-dimensional structure of bifilar helix in itself causes the variation of its drop shadow curve to be in different directions different from two dimension in embodiment 1
Sinusoidal variation relation.
Embodiment 3
In 2 preferred parametric equation (4) of embodiment and (5), during the amplitude difference in x, z direction, contain one in reflective membrane
The three-dimensional double helix curve that kind floats and sinks, floats and sinking three-dimensional curve is in the ellipse that is projected as in x-z directions, elliptical length
Short axle parameter is respectively the amplitude in x, z direction, and wherein three-dimensional spiral curve length of the section for ellipse is adjusted in phase constant in position
Axis is in the orientation in space.Preferred parameter A1=A2=10mm, B1=15mm, B2=5mm,V0=20mm/
S, y0=30mm, w1=w2=pi/2, w=1, z1=20mm, z2=15mm, by selection parameter it is found that double helix curve x-z is cut
Face is ellipse.The visual observation effect of the three-dimensional bifilar helix of ellipse made on reflective membrane is depending on what helix had regards
Poor information, it is preferable that for parallax information in embodiment 1 and embodiment 2,3d dynamic view effect is similar to Example 2,
Do not have and drop shadow curve of the three-dimensional curve on reflective membrane is observed in parallax directions, projection tilde closes on different visual angles direction
The geometrical ray projection law of aforementioned three-dimension object in the plane.
Embodiment 4
In 2 preferred parametric equation of embodiment, when position phase constant w1=0, w2=π, a kind of floating is contained on reflective membrane
Sine curve, floating and sinking sine curve are tilted with reflective membrane plane 1 in 45 ° of inclinations angle with the space of sinking, are observed
Space tilts sine curve floating and sinking stereoscopic effect as shown in Figure 10, and 3a is floating curve in figure, and 3b is subsidence curve.
Preferred parameter A1=A2=10mm, B1=15mm, B2=5mm,V0=20mm/s, y0=30mm, w=1, z1
=20mm, z2=15mm, by the parameter that selects it is found that the projection of double helix curve x-z sections is straightway.Inclining on reflective membrane
Tiltedly double sinusoidal visual observation effects, the parallax information having depending on helix, it is preferable that the same embodiment of parallax information
1 and embodiment 2 in, 3d dynamic view effect with it is aforementioned similar.Exist not having observation three-dimensional curve in parallax directions
Drop shadow curve in reflective film surface 1, projection tilde closes the geometry light of three-dimension object in the plane on different visual angles direction
Line projection's rule, the typical visual angle drop shadow effect observed, ripple as depicted in fig. 2, the characteristic parameter of wave molding are identical.
In no parallax in reflective membrane planar horizontal or vertical direction, when upper and lower, left and right overturn number plate to maximum observable visual angle, throw
The position relationship of shadow curve is respectively shown in attached drawing 11,12,13,14, during number plate is overturn, the wave of drop shadow curve 3a, 3b
Shape and change in location relationship are determined by projection law of the three-dimension object on reflective membrane plane 1, similar in embodiment 1.Such as
Shown in attached drawing 11, since float in space sinusoidal line and number plate plane 1 have inclination angle, when being flipped up number plate, reflective membrane is put down
Floating drop shadow curve 3a and 3b on face 1 are respectively provided with the visual effect of stretching and compression.
Embodiment 5
As before, in embodiment 2,3,4 preferred x, z direction simple harmonic motion, different parameters is selected, in x-z-plane
Drop shadow curve is closed curve or straightway, and closed curve is round, ellipse.The periodicity in x, z direction is past in the present embodiment
Movement biosynthesis locus is alternatively other closed curves again, and as shown in Figure 15, closed curve has axisymmetric closed curve
Characteristic, the half of symmetric figure are the biosynthesis locus moved x, z half period, and half period geometric locus is parabola, Gaussian Bell
Similar to closed curve, the closed curve in x, z direction is stretched by the uniform motion in y directions to be become for line, spline curve and other appearances
Shape is spatially spiral line, observes the space bifilar helix made on reflective membrane, has and floats on reflective membrane surface on one, another
Item sinks square under the surface.The three dimensions bifilar helix of suspension and sinking is able to observe that in the oriented surface with parallax,
Three-dimensional spiral line is looked up in the side of no parallax, observation result is its two-dimentional projection image.On vertical reflective membrane plane 1 just
To projection moire curve for sinusoidal line, cosine line, circular arc line, ellipse, parabola, Gaussian Bell line, spline curve and its
Its appearance is similar to waviness curve.Described by solid figure in dynamic observation number plate plane, visual effect and embodiment 1,2,3,4
Rule it is identical.
The reflective membrane containing three-dimensional bifilar helix belonging to the present embodiment and its automotive number plate using the reflective membrane, see
The floating bifilar helix observed is composed of by the helix described in embodiment 1,2,3,4.For example, the spiral observed
Line suspends and sinking effect is as shown in attached drawing 16,17.Reflective membrane made by attached drawing 16, the sinking helix observed is implements
Two-dimentional sinusoidal line 1b described in example 1, and floating helix then for implement 2 in three-dimensional spiral line 2a, attached drawing 17 then with it is attached
Figure 16 is exactly the opposite.In the present embodiment the floating bifilar helix of attached drawing 16,17 be only in previous embodiment helix combination in
Two kinds of situations.It will be apparent that helix or other figures and other possible figures by describing in previous embodiment
Combination belongs to the invention scope of the present embodiment.Pairs that attached drawing 16,17 is described and including other possible floatings and sinking
Helix, observes characteristic and preferred feature parameter is all identical with previous embodiment.
Embodiment 6
In order to which reflective membrane of the present invention is made to be suitable for the automotive number plate of various specifications and other application occasion, this hair is observed
Containing suspension and sinking bifilar helix on bright reflective membrane, the described position of embodiment is not limited to, can be on reflective membrane
Any position and any direction, such as the trend of helix can be as shown in Figure 18.Obvious, it is observed on reflective membrane
Helix to different location is not attached with other creative works.The floating auger line characteristic and previous embodiment observed
It is identical but the different embodiment in position belongs to the scope of the present invention on reflective membrane.
By the automotive number plate of the reflective membrane of used this programme, when on motor vehicle, can under ambient light irradiation,
The bifilar helix figure of floating and sinking is easily observed with human eye.Since number plate contains bifilar helix only in certain visual angle
It is interior as it can be seen that as shown in Figure 19, it is assumed that upward maximum observable visual angle and horizontal plane is into θ angle, and observer's eyes are from horizontal plane
Highly for L, then with number plate plane minimum observable distance D=L/tan θ, observer can move down observation number herein apart from upper
The bifilar helix figure of board moves backward increase viewing distance to reduce observation visual angle, then the bifilar helix observed moves
For state visual effect with variation effect when being flipped up in previous embodiment, observing can be according to the observation spy of upper and lower, left and right
Property understand the observing effect in other directions.From observing effect, in an outdoor environment, irradiated, observed with the light of directionality
The effect of double helix figure is more preferable, more preferable especially with illuminations, observing effects such as flashlight, mobile phone light.At night, use is motor-driven
During vehicle distance light light irradiation, the retroreflection to light of reflective membrane in the field range of high beam retroeflection direction, observes number plate, will
See the bifilar helix of strong contrast.
Wherein, the bifilar helix of floating is preferably two dimension sine or cosine curve, three-dimensional spiral line.Two-dimentional sinusoidal or cosine
Curve is itself in the positive upright projection curve of reflective membrane plane, is met in drop shadow curve's shape of other view directions several
What ray cast rule.The three-dimensional double helix curve of floating, the projecting figure of x-z-plane is symmetrical closed curve, preferably
For circle, ellipse, straightway, parabola, Gaussian Bell line, spline curve and other closed curves.The double helix of floating
Line is periodic wave streakline in vertical forward projection's curve of reflective membrane plane, and the half period waveform of wave molding is sinusoidal, cosine
Curve, circular arc line, ellipse, parabola, Gaussian Bell line, spline curve and other appearances are similar to curve.Two weeks was described
The characteristic parameter of Qi Xing drop shadow curves includes：Cycle T, amplitude A, position difference P.The parallax that bifilar helix can be provided have it is each to
The same sex or anisotropy.Isotropism parallax refers to observe in the arbitrary orientation plane in observable angular field of view floating
Dynamic bifilar helix, and anisotropy is then different, only it is observed that floating double helix in the orientation plane of no parallax information
Drop shadow curve of the line in reflective membrane plane, anisotropy be preferably horizontal direction with parallax and vertical direction does not regard
Difference is opposite.Mobile observation bifilar helix, bifilar helix have such as real space object in the orientation plane with parallax
The dynamic characteristic of relative movement.And the mobile observation in the orientation plane of no parallax, it is visually only capable of seeing helix anti-
The geometrical ray drop shadow curve in light film surface different visual angles direction, the position of drop shadow curve have the visual characteristic of relative motion.
The position of floating auger line can be produced on any position of reflective membrane plane, and floating auger line can have the line of arbitrary needs
It is wide.Floating auger line under ambient light irradiation people's eye as it can be seen that optimal viewing effect is that (such as the sun is irradiated using directional light
Light, flashlight, mobile phone light source etc.).
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (8)
1. a kind of reflective membrane containing dynamic solid helix, which is characterized in that including reflective membrane main body, the reflective membrane main body
Opposite two surfaces on float be provided with an at least curve respectively, be composed of spiral with respect at least curve on two surfaces
Line, the helix be decomposed into x, z to reciprocating motion and y to the synthesis of movement, x-y plane is residing for the reflective membrane main body
Plane, z to perpendicular to the x-y plane, the helix described x, z to reciprocating motion in formed in one cycle
Closed curve or straightway resultant motion track, the closed curve the y into movement along y to be stretched exhibition
It opens；
The helix has parametric equation (1)：
Wherein, A, B x, z directions amplitude, phase constant w0The x-z-plane resultant motion curvilinear path is adjusted, y directions
v0Movement expansion so that the closed curve is stretched in y directions；
In the parametric equation (1), the x to reciprocating motion for simple harmonic motion, z values are constant, and the helix includes upper
Periodic sinusoidal curve or cosine curve floating and sink, floating curve parametric equation (2) are as follows：
Subsidence curve parametric equation (3) is as follows：
In above formula, A1, A2For the amplitude of sinusoidal line,For initial bit phase, v0, y0, z1, z2 are constant.
A kind of 2. reflective membrane containing dynamic solid helix according to claim 1, which is characterized in that the parameter side
In journey (2) and (3), when position phase constant w1=0, w2=π, the helix includes floating and the space that sinks tilt it is sinusoidal bent
Line is in 45 ° of inclinations angle with the x-y plane.
A kind of 3. reflective membrane containing dynamic solid helix according to claim 1, which is characterized in that the parameter side
In journey (1), described x, z to reciprocating motion for simple harmonic motion, the helix includes floating three-dimensional spiral curve and sinks three
Helical curve is tieed up, the parametric equation (4) of the floating three-dimensional spiral curve is as follows：
The parametric equation (5) of the sinking three-dimensional spiral curve is as follows：
Wherein, B1 and B2 is the amplitude of floating curve and subsidence curve in z directions.
A kind of 4. reflective membrane containing dynamic solid helix according to claim 3, which is characterized in that the floating three
Dimension helical curve and sinking three-dimensional spiral curve are projected as closed curve in x-z-plane.
5. a kind of reflective membrane containing dynamic solid helix according to claim 4, which is characterized in that described to be closed song
Line is symmetrical closed curve.
6. a kind of reflective membrane containing dynamic solid helix according to claim 4 or 5, which is characterized in that described to close
Curve is closed as ellipse, the elliptical major and minor axis parameter is respectively the amplitude in x, z direction, and wherein position phase constant is adjusted described three
Tie up orientation of the helical curve major and minor axis in space.
A kind of 7. reflective membrane containing dynamic solid helix according to claim 3, which is characterized in that the floating three
It is periodic wave streakline that helical curve and sinking three-dimensional spiral curve, which are tieed up, in vertical forward projection's curve of reflective membrane plane.
8. automotive number plate, including number plate main body, which is characterized in that setting is just like claim 1-7 in the number plate main body
A kind of any reflective membrane containing dynamic solid helix.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810445607.9A CN108615454B (en) | 2016-07-08 | 2016-07-08 | Reflective film containing dynamic three-dimensional spiral line and motor vehicle license plate |
| CN201610534526.7A CN105957446B (en) | 2016-07-08 | 2016-07-08 | A kind of reflective membrane and automotive number plate containing dynamic solid helix |
| PCT/CN2017/081983 WO2018006637A1 (en) | 2016-07-08 | 2017-04-26 | Reflective film with dynamic three-dimensional spiral line and motor vehicle license plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610534526.7A CN105957446B (en) | 2016-07-08 | 2016-07-08 | A kind of reflective membrane and automotive number plate containing dynamic solid helix |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810445607.9A Division CN108615454B (en) | 2016-07-08 | 2016-07-08 | Reflective film containing dynamic three-dimensional spiral line and motor vehicle license plate |
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| CN105957446A CN105957446A (en) | 2016-09-21 |
| CN105957446B true CN105957446B (en) | 2018-07-03 |
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| CN201610534526.7A Active CN105957446B (en) | 2016-07-08 | 2016-07-08 | A kind of reflective membrane and automotive number plate containing dynamic solid helix |
| CN201810445607.9A Active CN108615454B (en) | 2016-07-08 | 2016-07-08 | Reflective film containing dynamic three-dimensional spiral line and motor vehicle license plate |
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| CN201810445607.9A Active CN108615454B (en) | 2016-07-08 | 2016-07-08 | Reflective film containing dynamic three-dimensional spiral line and motor vehicle license plate |
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| WO (1) | WO2018006637A1 (en) |
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| CN105957446B (en) * | 2016-07-08 | 2018-07-03 | 公安部交通管理科学研究所 | A kind of reflective membrane and automotive number plate containing dynamic solid helix |
| CN109300392A (en) * | 2018-10-22 | 2019-02-01 | 海南亚元防伪技术研究所（普通合伙） | Anti- recycling label can be removed |
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| CN101811481A (en) * | 2010-04-28 | 2010-08-25 | 燕山大学 | Anti-counterfeiting license plate containing optical hidden code and production and identification method thereof |
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| US6788640B2 (en) * | 2000-08-23 | 2004-09-07 | Salvatore Celeste | Universal mass storage information card and drive assembly |
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| JP5558591B2 (en) * | 2011-01-19 | 2014-07-23 | 日本カーバイド工業株式会社 | A micro glass sphere retroreflective sheet on which images with viewing directionality are installed |
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| CN103640530B (en) * | 2013-12-24 | 2015-08-05 | 上海发钰实业有限公司 | With the reflective membrane of anti-counterfeiting mark and manufacture method thereof and anti-counterfeiting license plate |
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| CN105957446B (en) * | 2016-07-08 | 2018-07-03 | 公安部交通管理科学研究所 | A kind of reflective membrane and automotive number plate containing dynamic solid helix |
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2016
- 2016-07-08 CN CN201610534526.7A patent/CN105957446B/en active Active
- 2016-07-08 CN CN201810445607.9A patent/CN108615454B/en active Active
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2017
- 2017-04-26 WO PCT/CN2017/081983 patent/WO2018006637A1/en active Application Filing
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| CN2507711Y (en) * | 2000-11-28 | 2002-08-28 | 廖振强 | Light-transmission material sign plate with antiforging marker |
| CN1950240A (en) * | 2004-04-07 | 2007-04-18 | 雷恩哈德库兹两合公司 | Embossed film for producing tamper-proof car license plates and tamper-proof car license plate comprising such an embossed film |
| CN101811481A (en) * | 2010-04-28 | 2010-08-25 | 燕山大学 | Anti-counterfeiting license plate containing optical hidden code and production and identification method thereof |
| CN202608159U (en) * | 2012-02-29 | 2012-12-19 | 3M中国有限公司 | Safe-guarding and anti-counterfeiting thin film |
| CN205827793U (en) * | 2016-07-08 | 2016-12-21 | 苏州苏大维格光电科技股份有限公司 | A kind of reflective membrane containing dynamic solid helix and automotive number plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108615454A (en) | 2018-10-02 |
| WO2018006637A1 (en) | 2018-01-11 |
| CN108615454B (en) | 2020-03-20 |
| CN105957446A (en) | 2016-09-21 |
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Effective date of registration: 20170922 Address after: 214000 Jiangsu city of Wuxi province Qian Rong Lu No. 88 Applicant after: Traffic Management Science Inst., Security Ministry Applicant after: SVG Optronics, Co., Ltd. Address before: 215000 Suzhou, Jiangsu Province, Hong Dong Road, South Wing Street, No. 478 Applicant before: SVG Optronics, Co., Ltd. |
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Address after: 214000 Jiangsu city of Wuxi province Qian Rong Lu No. 88 Co-patentee after: SUZHOU SUDAVIG SCIENCE AND TECHNOLOGY GROUP Co.,Ltd. Patentee after: TRAFFIC MANAGEMENT Research Institute OF THE MINISTRY OF PUBLIC SECURITY Address before: 214000 Jiangsu city of Wuxi province Qian Rong Lu No. 88 Co-patentee before: SVG OPTRONICS, Co.,Ltd. Patentee before: TRAFFIC MANAGEMENT Research Institute OF THE MINISTRY OF PUBLIC SECURITY |
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| CB03 | Change of inventor or designer information |
Inventor after: Wei Guojun Inventor after: Dong Kui Inventor after: Wei Yukuan Inventor after: Yu Liying Inventor after: Chen Linsen Inventor after: Jiang Fan Inventor after: Fan Guangfei Inventor after: Li Xiaowu Inventor after: Lu Guo Inventor after: Weng Yufeng Inventor after: Zhou Yang Inventor before: Wei Guojun Inventor before: Chen Linsen Inventor before: Fan Guangfei Inventor before: Lu Guo Inventor before: Zhou Yang Inventor before: Wei Yukuan |