CN107748452A - A kind of Zooming method of the Zoom glasses based on liquid crystal lens - Google Patents
A kind of Zooming method of the Zoom glasses based on liquid crystal lens Download PDFInfo
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- CN107748452A CN107748452A CN201711149637.7A CN201711149637A CN107748452A CN 107748452 A CN107748452 A CN 107748452A CN 201711149637 A CN201711149637 A CN 201711149637A CN 107748452 A CN107748452 A CN 107748452A
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- Prior art keywords
- liquid crystal
- eyeglass
- crystal layer
- lens
- double
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/081—Ophthalmic lenses with variable focal length
- G02C7/085—Fluid-filled lenses, e.g. electro-wetting lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
- G02F1/294—Variable focal length devices
Abstract
The invention discloses a kind of Zooming method of the Zoom glasses based on liquid crystal lens, is related to eyewear art, and double diopter glasses include：Lens body, double diopter lens, drive module, range finder module and master controller；The Zooming method comprises the following steps：First, range finder module gathers the ranging data of viewing object in real time, and ranging data is sent to master controller；Then, by ranging data and ranging threshold comparison, eyeglass driving voltage is generated, lens refractive power is controlled.The present invention reaches the purpose of control lens refractive power by applying voltage, the rotation of control liquid crystal and toggle refractions rate to electrode.The eyeglass different zones of glasses provided by the invention are without interval, specious, the problems such as no prism chattering.By range finder module, ranging is carried out to viewing scenery, and controls the switching of lens refractive power, is operated without user, improves the convenience used.
Description
Technical field
The present invention relates to eyewear art, more particularly to a kind of Zooming method of the Zoom glasses based on liquid crystal lens.
Background technology
In the case corrected defects of vision, it is often necessary to which a pair of glasses has two kinds of correction number of degrees.Such as old man or presbyopia
User is closely read during newspaper, it is necessary to be watched with presbyopic glasses (convex lens), when seeing distant place scenery, it is necessary to be watched with goggles.Example again
Such as, in teenage pseudomyopia, it is also desirable to the glasses of two number of degrees, avoid myopia degree from deepening and correct defects of vision, Yong Huke
Voluntarily to adjust the number of degrees of glasses, the demand of different scenes is adapted to.
In the prior art, a kind of Bifocal lenses (or ultex) be present, it is by two kinds of different refractive power mills same
On one eyeglass, turn into the eyeglass in two regions, as shown in Figure 2.It is disadvantageous in that：It is that an eyeglass is divided into Liang Ge areas
Domain, causing glasses different zones has obvious interval, appearance unsightly, there is prism chattering, and upper dizziness of meeting downstairs etc. is asked
Topic；Simultaneously, it is necessary to which hand lift always takes spectacle-frame to change focus, operation inconvenience.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide one kind one kind and are based on liquid
The Zooming method of the Zoom glasses of brilliant lens.Automatically adjusting for two kinds of focal lengths of eyeglass is aimed at, it is double to solve prior art
The different zones of light microscopic piece have obvious interval, appearance unsightly, there is the problems such as prism chattering, realize a kind of glasses oneself
Dynamic Zooming method.
To achieve the above object, it is described the invention provides a kind of Zooming method of the Zoom glasses based on liquid crystal lens
Double diopter glasses include：Lens body, be installed on the lens body for double diopter lens, the use corrected defects of vision
In the drive module, the range finder module for collection viewing object distance and the main control that drive double diopter lens zooms
Device；The range finder module is identical with the pointing direction of the glasses；
Double diopter lens include：First eyeglass substrate, the second eyeglass substrate, it is filled in the first eyeglass substrate
And second liquid crystal layer between eyeglass substrate and be arranged at the liquid crystal fitting frame of the liquid crystal layer surrounding；First eyeglass
First transparency electrode layer and second transparency electrode layer are respectively arranged with the inside of substrate and the second eyeglass substrate；First mirror
Support column is not provided between plate base and the second eyeglass substrate；
The first input end of the master controller connects the output end of the range finder module, and the second of the master controller is defeated
Going out the input that end connects the drive module, the 3rd output end of the drive module connects the first transparency electrode layer,
4th output end of the drive module connects the second transparency electrode layer；
The Zooming method, comprises the following steps：
S1, range finder module gather the ranging data of viewing object in real time, and the ranging data is sent to the master control
Device processed；
S2, the master controller are by the ranging data and ranging threshold comparison；If the ranging data meets the survey
Away from threshold value, then the drive module is controlled to generate the first driving voltage, the liquid crystal layer is in first state；If the ranging number
According to the ranging threshold value is unsatisfactory for, then the drive module is controlled to generate the second driving voltage, shown liquid crystal layer is in the second shape
State.
In the technical scheme, by applying voltage, the rotation of control liquid crystal and toggle refractions rate to electrode, reach control mirror
The purpose of piece diopter.Glasses provided by the invention, although being three-decker, keep and existing glasses class in shape
Seemingly, compatible existing picture frame and user's custom.Compared with Bifocal lenses, adjustable, the different zones of two kinds of focal lengths of eyeglass
Without interval, specious, the problems such as no prism chattering.The present invention is used for pseudo-myopia and corrected, and can observe user
High number of degrees glasses are switched to during the scenery of distant place, the low powered posterior chamber glasses switched during nearby scenery are observed, to improve user's eyesight.
First substrate and second substrate are supported in addition, being not provided with support column in the present invention, between liquid crystal layer, its
Reason is that one side support column has refractive index in itself, can influence the diopter of glasses so that eyeglass lens power distortion, it is another
Aspect, in order to ensure that double diopters are poor, double ametropia lens of the invention are thicker relative to traditional liquid crystal box, eyeglass liquid crystal
Layer thickness and precision is so high without the liquid crystal cell of display field, and regional thickness of liquid crystal layer is still disclosure satisfy that without support column
Meet design requirement.In a word, the present invention is not provided with the advantages of support column and is, improves the diopter uniformity of eyeglass, changes
The optical property of kind eyeglass.
In the technical scheme, using range finder module, ranging is carried out to viewing scenery, and control cutting for lens refractive power
Change, the correction number of degrees are too high when avoiding watching close shot, the further deterioration to affect one's power of vision；Simultaneously as glasses can automatically switch
Focal length, operated without user, improve the convenience used.
Furthermore, double diopter glasses, in addition to for setting the input module of ranging threshold value；The input
Module is tablet personal computer, mobile phone or button；
The Zooming method also includes：Step SA, user utilizes input module setting ranging threshold value.
In the technical scheme, user can set ranging threshold value, according to the threshold value, glasses voluntarily according to own situation
Zoom function is voluntarily realized, realizes the switching of lens refractive power.It is easy to user's control, meets actual demand, improves glasses intelligence
Change.
Furthermore, at least one interface is arcuate structure in two interfaces of the liquid crystal layer；Double diopters
Eyeglass is used to correct defects of vision, and the diopter of double diopter lens between the first state and a second state is poor
The ns1For the liquid crystal layer refractive index under first state, the ns2For the liquid crystal layer refractive index under the second state, institute
State ns1≠ns2, andThe r1For the radius of curvature of the primary optical axis at the interface of liquid crystal layer first, r2For liquid crystal layer
The radius of curvature of the primary optical axis of second contact surface, the r1＞ 0, the r2＞ 0；If the first interface of the liquid crystal layer is concave surface,
α=- 1；If the first interface of the liquid crystal layer is plane, α=0；If the first interface of the liquid crystal layer is convex
Face, then α=1；If the second contact surface of the liquid crystal layer is concave surface, β=- 1；If the second contact surface of the liquid crystal layer
For plane, then β=0；If the second contact surface of the liquid crystal layer is convex surface, β=1.
In the technical scheme, pass throughCan effectively it configure different double in the wrong
The eyeglass of luminosity difference, eyeglass are simple to manufacture.
Furthermore, the liquid crystal fitting frame leaves spacing, the liquid crystal patch with the first eyeglass substrate edges
Close frame and the second eyeglass substrate edges and leave spacing, and formed with liquid crystal fitting frame, the first eyeglass substrate, the
The mounting groove that two eyeglass substrates are formed, the mounting groove are used for the picture frame that double diopter lens are installed on to the glasses
On.
In the technical scheme, it is bonded between frame and substrate edges and leaves gap, for eyeglass to be arranged on into picture frame,
Including eyeglass is arranged in the bracing wire of half frame glasses.Open up a groove for being used to install eyeglass, letter again without optist
The technique for changing eyeglass assembling.
Furthermore, it is provided with the first transparency electrode layer and matches somebody with somebody for the first of the pre-configured aligned liquid crystal layer
To layer, the second both alignment layers for the pre-configured aligned liquid crystal layer are provided with the second transparency electrode layer；Described first
Both alignment layers and the second both alignment layers are obtained using light orientation, and the liquid crystal layer uses negative liquid crystal；When double diopter lens
In first state, the negative liquid crystal is vertical array；When double diopter lens are in the second state, the negativity liquid
It is brilliant along electric field alignment.
In the technical scheme, using light orientation and negative liquid crystal, the uniformity of glasses regional is improved, avoids rubbing
The regional damage of orientation causes inconsistent.Meanwhile the switching of two refractive indexes of liquid crystal is realized under the electric field.
Furthermore, the alignment direction of first both alignment layers and the second both alignment layers is along double ametropia lens primary optical axis sides
To, or the alignment direction of first both alignment layers and the second both alignment layers is along the first eyeglass substrate or the second eyeglass substrate
Radial direction.
In the technical scheme, alignment direction is used along double ametropia lens key light direction of principal axis, and its advantage is ultraviolet
Exposure angle is to expose to substrate from primary optical axis positive direction, only needs a source of parallel light, and exposure efficiency is high, speed is fast.In the skill
In art scheme, alignment direction is the radial direction along substrate, and it is beneficial in that, the imaging effect at each visual angle is good.
Furthermore, in the specific implementation of the present invention one, the liquid crystal layer is in position LiThicknessThe d0For the liquid crystal thickness on main optical axis direction
Degree, the θi1It is the first substrate in position LiRadial direction and the angle of primary optical axis.
In the technical scheme, the space between the first eyeglass substrate and the second eyeglass substrate, liquid crystal layer is formed, effectively
The double diopters of realization；Rational liquid crystal layer height is set by diverse location, ensure each position can obtain it is good
Correct defects of vision effect.
It is noted that the first eyeglass substrate and the second eyeglass substrate can reflect to light, can not also influence
The refraction path of light；In an embodiment of the present invention, the first eyeglass substrate, the second eyeglass substrate and liquid crystal layer both participate in light
Refraction；In order to reduce manufacturing procedure and processing cost, the first eyeglass substrate both sides radius of curvature is equal or the second eyeglass substrate
The radius of curvature of both sides is equal.
In one embodiment, the primary optical axis radius of curvature r at the 3rd interface of the first eyeglass substrate3With the 4th interface
Primary optical axis radius of curvature r4It is equal.
In one embodiment, the primary optical axis radius of curvature r at the 5th interface of the second eyeglass substrate5With the 6th interface
Primary optical axis radius of curvature r6It is equal.
Furthermore, the first eyeglass substrate and the second eyeglass substrate are at least one for polishing, and described in adjustment
The first pair of dioptric optical value of double diopter lens in the first state.
In the technical scheme, the present invention finely tunes the number of degrees of glasses, the first eyeglass substrate and second for the ease of optist
At least one in eyeglass substrate is used to polish, and avoids the default eyeglass number of degrees and user from mismatching, and reduces eyeglass and dispatches from the factory model
Classification, improve the adaptability of eyeglass.
The beneficial effects of the invention are as follows：The present invention to electrode by applying voltage, and control liquid crystal rotates and toggle refractions rate,
Reach the purpose of control lens refractive power.Glasses provided by the invention, although being three-decker, keep in shape and existing
Have that glasses are similar, compatible existing picture frame and user's custom.Compared with Bifocal lenses, two kinds of focal lengths of eyeglass can adjust,
Different zones are without interval, specious, the problems such as no prism chattering.The present invention is used for pseudo-myopia and corrected, and can make
User is switched to the high number of degrees glasses when observing distant place scenery, the low powered posterior chamber glasses switched during nearby scenery are observed, to improve user
Eyesight.The present invention is not provided with the advantages of support column and is, improves the diopter uniformity of eyeglass, improves the optical of eyeglass
Energy.Using range finder module, ranging is carried out to viewing scenery, and controls the switching of lens refractive power, avoids correcting when watching close shot
The number of degrees are too high, the further deterioration to affect one's power of vision.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of a specific embodiment of the invention；
Fig. 2 is a kind of Bifocal lenses structural representation of the prior art；
Fig. 3 is the structural representation of a specific embodiment of the invention；
Fig. 4 is the alignment structure of liquid crystal schematic diagram in a specific embodiment of the invention；
Fig. 5 is the alignment structure of liquid crystal schematic diagram in another specific embodiment of the present invention；
Fig. 6 is structural representation of the liquid crystal under electric field action in a specific embodiment of the invention；
Fig. 7 is the eyeglass geometric parameter schematic diagram in a specific embodiment of the invention；
Fig. 8 is the eyeglass geometric parameter schematic diagram in another specific embodiment of the present invention.
Embodiment
The present invention can realize double light presbyopic glasses, double light spectacles, and eyeglass lens surface is smooth, no prior art eyeglass
Prism chattering, it is specious the advantages that, the invention will be further described with reference to the accompanying drawings and examples：
As shown in figures 1-8, in the first embodiment of the invention, there is provided a kind of zoom of the Zoom glasses based on liquid crystal lens
Method, double diopter glasses include：Lens body, be installed on the lens body for double dioptrics for correcting defects of vision
Spend eyeglass, the drive module for driving double diopter lens zooms, the range finder module for gathering viewing object distance
And master controller；The range finder module is identical with the pointing direction of the glasses；
As shown in figure 3, double diopter lens include：First eyeglass substrate 101, the second eyeglass substrate 107, it is filled in
Liquid crystal layer 104 between the first eyeglass substrate 101 and the second eyeglass substrate 107 and it is arranged at the liquid crystal layer 104 4
The liquid crystal fitting frame 108 in week；The first eyeglass substrate 101 and the inner side of the second eyeglass substrate 107 are respectively arranged with the
One transparent electrode layer 102 and second transparency electrode layer 106；It is not provided with propping up between the first eyeglass substrate and the second eyeglass substrate
Dagger；
The first input end of the master controller connects the output end of the range finder module, and the second of the master controller is defeated
Go out the input that end connects the drive module, the 3rd output end of the drive module connects the first transparency electrode layer
102, the 4th output end of the drive module connects the second transparency electrode layer 106；
As shown in figure 1, the Zooming method, comprises the following steps：
S1, range finder module gather the ranging data of viewing object in real time, and the ranging data is sent to the master control
Device processed；
S2, the master controller are by the ranging data and ranging threshold comparison；If the ranging data meets the survey
Away from threshold value, then the drive module is controlled to generate the first driving voltage, the liquid crystal layer 104 is in first state；If the survey
Meet the ranging threshold value away from data, then control the drive module to generate the second driving voltage, shown liquid crystal layer 104 is in the
Two-state.
In the present embodiment, double diopter glasses, in addition to for setting the input module of ranging threshold value；It is described defeated
It is tablet personal computer, mobile phone or button to enter module；The Zooming method also includes：Step SA, user is set using the input module
Location survey is away from threshold value.
In the present embodiment, at least one interface is arcuate structure in two interfaces of the liquid crystal layer 104；It is described double in the wrong
Luminosity eyeglass is used to correct defects of vision, and the diopter of double diopter lens between the first state and a second state is poor
The ns1For the refractive index of liquid crystal layer 104 under first state, the ns2For the folding of liquid crystal layer 104 under the second state
Penetrate rate, the ns1≠ns2, andThe r1For the radius of curvature of the primary optical axis at the interface of liquid crystal layer 104 first,
r2For the radius of curvature of the primary optical axis of the second contact surface of liquid crystal layer 104, the r1＞ 0, the r2＞ 0；If the liquid crystal layer 104
First interface is concave surface, then α=- 1；If the first interface of the liquid crystal layer 104 is plane, α=0；It is if described
First interface of liquid crystal layer 104 is convex surface, then α=1；If the second contact surface of the liquid crystal layer 104 is concave surface, the β
=-1；If the second contact surface of the liquid crystal layer 104 is plane, β=0；If the second contact surface of the liquid crystal layer 104 is convex
Face, then β=1.
In the present embodiment, the liquid crystal fitting frame 108 leaves spacing with the edge of the first eyeglass substrate 101, institute
State liquid crystal fitting frame 108 and leave spacing with the edge of the second eyeglass substrate 107, and formed and frame is bonded with the liquid crystal
108th, the mounting groove that the first eyeglass substrate 101, the second eyeglass substrate 107 are formed, the mounting groove are used for double diopters
Eyeglass is installed on the picture frame of the glasses.
In the present embodiment, it is provided with the first transparency electrode layer 102 and is orientated for the pre-configured liquid crystal layer 104
The first both alignment layers 103, the be orientated for the pre-configured liquid crystal layer 104 is provided with the second transparency electrode layer 106
Two both alignment layers 105；The both alignment layers 105 of first both alignment layers 103 and second are obtained using light orientation, and the liquid crystal layer 104 is adopted
Use negative liquid crystal；When double diopter lens are in first state, the negative liquid crystal is vertical array；When double dioptrics
Degree eyeglass is in the second state, and the negative liquid crystal is along electric field alignment, as shown in Figure 6.
It is noted that the alignment direction of both alignment layers can be determined according to needs of production, optional orientation
Radial direction of the direction along eyeglass primary optical axis or substrate.
Preferably, in the present embodiment, the alignment direction of the both alignment layers 105 of the first both alignment layers 103 and second is along double
Ametropia lens key light direction of principal axis, as shown in Figure 4.In an alternative embodiment of the invention, the first both alignment layers 103 and the second both alignment layers
105 alignment direction is along the first eyeglass substrate 101 or the radial direction of the second eyeglass substrate 107, as shown in Figure 5.
The liquid crystal layer is in position LiThickness
The d0For the thickness of liquid crystal layer on main optical axis direction, the θi1It is the first substrate in position LiRadial direction and primary optical axis
Angle.
It is noted that the first eyeglass substrate 101 and the second eyeglass substrate 107 can reflect to light, can also
The refraction path of light is not influenceed；In an embodiment of the present invention, the first eyeglass substrate 101, the second eyeglass substrate 107 and liquid crystal
Layer 104 both participates in the refraction of light；And reduction processing technology step, can also by the radius of curvature at two interfaces of eyeglass substrate
It is arranged to equal.
In an embodiment of the present invention, the primary optical axis radius of curvature r at the 3rd interface of the first eyeglass substrate 1013With the 4th
The primary optical axis radius of curvature r at interface4It is equal.Preferably, in this embodiment, the 5th interface of the second eyeglass substrate 107
Primary optical axis radius of curvature r5With the primary optical axis radius of curvature r at the 6th interface6It is equal.
It is noted that the eyeglass number of degrees are finely adjusted for the ease of optist, the first eyeglass substrate 101 and the second mirror
Plate base 107 is at least one to be used to polish, and adjusts the first pair of dioptric optical value of double diopter lens in the first state.
Preferably, in the present embodiment, the first eyeglass substrate 101 is used to polish and adjust the eyeglass number of degrees.In another embodiment of the present invention
In, it is to be polished using the second eyeglass substrate 107 and finely tune the eyeglass number of degrees.
It is noted that in the present embodiment, fitting frame 108 can also use 3D printing technique or half tone technique
Manufacture.
Illustrated below with the example that specifically gets the right lensses for one's eyeglasses.
Example 1, as shown in fig. 7, user need to be equipped with the myopia that the normality number of degrees are 200 degree, the second state number of degrees are 150 degree
Mirror, i.e. the first diopter are -2D, and the second diopter is -1.5D, and double diopter differences are -0.5D.In figure, it is respectively from bottom to top
First eyeglass substrate 101, liquid crystal layer 104, the second eyeglass substrate 107.Wherein, the also useful throwing in the lower surface of the first eyeglass substrate 101
Light finely tunes the eyeglass number of degrees, and the upper and lower interface radius of curvature of the second eyeglass substrate 107 is identical, diopterFor 0.
The optical texture of liquid crystal layer 104, from concave and convex lenses form, α=- 1, β=1；After being selected due to liquid crystal material, liquid
Brilliant birefringence and birefringence difference determines that, it is assumed that, the first refractive index of liquid crystal is 1.8, and the second refractive index is 1.3,
Second curvature radiusAccording toR can be obtained2=0.5m.
According toTry to achieve the first state diopter of liquid crystal layer 104
According toTry to achieve the second state diopter of liquid crystal layer 104
According toTry to achieve the diopter of the first eyeglass substrate 101Need
Choose diopter and be -1.0D the second eyeglass substrate 107, and the lower surface of the second eyeglass substrate 107 is processed by shot blasting, with
Just the number of degrees are adjusted.
On the thickness parameter problem of each position of liquid crystal layer, as shown in fig. 7, can be obtained according to geometrical relationship, each position
Thickness of liquid crystal layerWherein, d0According to optist
Experience is set, and general span is 50 μm -100 μm.It is noted that in this example, the boundary of liquid crystal layer 104 first
Face is spill, α=- 1, and second contact surface is convex, β=1, in fact, the thickness of liquid crystal layer of each position
Example 2, as shown in figure 8, user need to be equipped with the presbyopia that the normality number of degrees are 100 degree, the second state number of degrees are 50 degree
Mirror, i.e. the first diopter are+1D, and the second diopter is+0.5D, and double diopter differences are 0.5D.In figure, from bottom to top respectively
One eyeglass substrate 101, liquid crystal layer 104, the second eyeglass substrate 107.Wherein, the also useful polishing in the lower surface of the first eyeglass substrate 101
The eyeglass number of degrees are finely tuned, the upper and lower interface radius of curvature of the second eyeglass substrate 107 is identical, diopterFor 0.
The optical texture of liquid crystal layer 104, from biconvex mirror form, α=1, β=1；It is selected using due to liquid crystal material
Afterwards, the birefringence of liquid crystal and birefringence difference determine that, it is assumed that, the first refractive index of liquid crystal is 1.8, and the second refractive index is
1.3, second curvature radiusAccording toIt can obtain
According toTry to achieve the first state diopter of liquid crystal layer 104
According toTry to achieve the second state diopter of liquid crystal layer 104
According toTry to achieve the diopter of the first eyeglass substrate 101Need
Diopter+0.5D Optical blanks are selected, and are processed by shot blasting, adjustment diopter is+0.2D.
On the thickness parameter problem of each position of liquid crystal layer, as shown in figure 8, can be obtained according to geometrical relationship, each position
Thickness of liquid crystal layerWherein, d0Passed through according to optist
Test and set, general span is 50 μm -100 μm.It is noted that in this example, the interface of liquid crystal layer 104 first
For convex, α=1, second contact surface is convex, β=1, in fact, the thickness of liquid crystal layer of each position
The operation principle of the present invention：Do not apply voltage in electrode, under both alignment layers effect, liquid crystal deflects, eyeglass
Diopter be the first diopter；In the case where electrode applies voltage condition, influenceed by electric field, liquid crystal deflects, the dioptric of eyeglass
Spend for the second diopter.Certainly, double diopter glasses provided by the invention can set switch, user oneself adjustment on glasses.
Range-measuring circuit can also be set, and detectable substance is away from the double diopters of glasses itself adjustment.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of Zooming method of the Zoom glasses based on liquid crystal lens, it is characterised in that double diopter glasses include：Eye
Mirror body, be installed on the lens body for correct defects of vision double diopter lens, for driving double diopters
The drive module of eyeglass zoom, range finder module and master controller for gathering viewing object distance；The range finder module with
The pointing direction of the glasses is identical；
Double diopter lens include：First eyeglass substrate, the second eyeglass substrate, it is filled in the first eyeglass substrate and
Liquid crystal layer between two eyeglass substrates and the liquid crystal fitting frame for being arranged at the liquid crystal layer surrounding；The first eyeglass substrate
First transparency electrode layer and second transparency electrode layer are respectively arranged with the second eyeglass substrate inner side；The first eyeglass base
Support column is not provided between plate and the second eyeglass substrate；
The first input end of the master controller connects the output end of the range finder module, the second output end of the master controller
The input of the drive module is connected, the 3rd output end of the drive module connects the first transparency electrode layer, described
4th output end of drive module connects the second transparency electrode layer；
The Zooming method, comprises the following steps：
S1, range finder module gather the ranging data of viewing object in real time, and the ranging data is sent to the master controller；
S2, the master controller are by the ranging data and ranging threshold comparison；If the ranging data meets the ranging threshold
Value, then control the drive module to generate the first driving voltage, and the liquid crystal layer is in first state；If the ranging data is not
Meet the ranging threshold value, then control the drive module to generate the second driving voltage, shown liquid crystal layer is in the second state.
A kind of 2. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：It is described double
Diopter glasses, in addition to for setting the input module of ranging threshold value；The input module is tablet personal computer, mobile phone or pressed
Key；
The Zooming method also includes：Step SA, user utilizes input module setting ranging threshold value.
A kind of 3. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：The liquid
At least one interface is arcuate structure in two interfaces of crystal layer；Double diopter lens are used to correct defects of vision, described double in the wrong
The diopter of luminosity eyeglass between the first state and a second state is poor
The ns1For the liquid crystal layer refractive index under first state, the ns2For the liquid crystal layer refractive index under the second state, the ns1
≠ns2, andThe r1For the radius of curvature of the primary optical axis at the interface of liquid crystal layer first, r2For liquid crystal layer second
The radius of curvature of the primary optical axis at interface, the r1＞ 0, the r2＞ 0；If the first interface of the liquid crystal layer is concave surface, described
α=- 1；If the first interface of the liquid crystal layer is plane, α=0；If the first interface of the liquid crystal layer is convex surface,
α=1；If the second contact surface of the liquid crystal layer is concave surface, β=- 1；If the second contact surface of the liquid crystal layer is flat
Face, then β=0；If the second contact surface of the liquid crystal layer is convex surface, β=1.
A kind of 4. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that the liquid
Crystalline substance fitting frame leaves spacing, the liquid crystal fitting frame and the second eyeglass substrate side with the first eyeglass substrate edges
Edge leaves spacing, and forms the mounting groove formed with liquid crystal fitting frame, the first eyeglass substrate, the second eyeglass substrate, institute
State the picture frame that mounting groove is used to for double diopter lens to be installed on the glasses.
A kind of 5. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：Described
The first both alignment layers for the pre-configured aligned liquid crystal layer are provided with one transparent electrode layer, on the second transparency electrode layer
It is provided with the second both alignment layers for the pre-configured aligned liquid crystal layer；First both alignment layers and the second both alignment layers are to use light
Orientation obtains, and the liquid crystal layer uses negative liquid crystal；When double diopter lens are in first state, the negative liquid crystal is
Vertical array；When double diopter lens are in the second state, the negative liquid crystal is along electric field alignment.
A kind of 6. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 3, it is characterised in that：Described
The alignment direction of one both alignment layers and the second both alignment layers is or first both alignment layers and the along double ametropia lens key light direction of principal axis
The alignment direction of two both alignment layers is the radial direction along the first eyeglass substrate or the second eyeglass substrate.
A kind of 7. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：The liquid crystal
Layer is in position LiThicknessThe d0For primary optical axis
Thickness of liquid crystal layer on direction, the θi1It is the first substrate in position LiRadial direction and the angle of primary optical axis.
A kind of 8. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：Described
The primary optical axis radius of curvature r at the 3rd interface of one eyeglass substrate3With the primary optical axis radius of curvature r at the 4th interface4It is equal.
A kind of 9. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：Described
The primary optical axis radius of curvature r at the 5th interface of two eyeglass substrates5With the primary optical axis radius of curvature r at the 6th interface6It is equal.
A kind of 10. Zooming method of the Zoom glasses based on liquid crystal lens as claimed in claim 1, it is characterised in that：It is described
First eyeglass substrate and the second eyeglass substrate are at least one for polishing, and adjust double diopter lens in the first state
First pair of dioptric optical value.
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| CN201711149637.7A CN107748452B (en) | 2017-11-18 | 2017-11-18 | A kind of Zooming method of the Zoom glasses based on liquid crystal lens |
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| CN108845433A (en) * | 2018-07-19 | 2018-11-20 | 三星电子（中国）研发中心 | Intelligent glasses and its control method |
| CN110568648A (en) * | 2019-08-29 | 2019-12-13 | 广东工业大学 | Variable-focus spherical lens structure liquid crystal lens |
| CN114545661A (en) * | 2022-03-08 | 2022-05-27 | 西安建筑科技大学 | Glasses based on ultrasonic ranging dynamic adjustment degree |
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|---|---|
| CN107748452B (en) | 2019-04-19 |
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