CN105842888A - Quick focusing optical element and imaging device - Google Patents
Quick focusing optical element and imaging device Download PDFInfo
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- CN105842888A CN105842888A CN201610376592.6A CN201610376592A CN105842888A CN 105842888 A CN105842888 A CN 105842888A CN 201610376592 A CN201610376592 A CN 201610376592A CN 105842888 A CN105842888 A CN 105842888A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 85
- 238000003384 imaging method Methods 0.000 title claims abstract description 27
- 239000000758 substrate Substances 0.000 claims abstract description 113
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 73
- 239000012528 membrane Substances 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 239000002775 capsule Substances 0.000 claims description 3
- 238000010295 mobile communication Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003644 lens cell Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- G02F1/01—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 intensity, phase, polarisation or colour
- G02F1/13—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 intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—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 intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a quick focusing optical element and an imaging device. The quick focusing optical element comprises a first variable-focus lens unit and a second variable-focus lens unit. The first variable-focus lens unit comprises a first substrate, a second substrate, a first electrode unit, a first orientation film, a second electrode unit, a second orientation film and a first liquid crystal layer, the first electrode unit and the first orientation film are arranged on the first substrate, the second electrode unit and the second orientation film are arranged on the second substrate, and the first liquid crystal layer is clamped between the first orientation film and the second orientation film. The second variable-focus lens unit comprises the second substrate, a third substrate, the second electrode unit, a third orientation film, a third electrode unit, a fourth orientation film and a second liquid crystal layer, the second electrode unit and the third orientation film are arranged on the second substrate, the third electrode unit and the fourth orientation film are arranged on the third substrate, and the second liquid crystal layer is clamped between the third orientation film and the fourth orientation film. The quick focusing optical element and the imaging device have the advantage that the quick focusing optical element is small and is simple in structure.
Description
Technical field
The present invention relates to technical field of imaging, be specifically related to a kind of optical element for rapid focus and imaging device.
Background technology
In prior art, when using the scene in the shooting life of existing imaging device, for the shooting effect obtained, lead to
Often use Focusing mechanism bulky and with high costs.Above-mentioned Focusing mechanism needs to do mechanical movement, not only right to scene
Burnt slow, and energy consumption is high, complex structural designs, is unfavorable for shooting fast-changing scene.
Summary of the invention
In view of this, the present invention provides a kind of optical element for rapid focus and imaging device, existing in order to solve
In technology, auto-focusing is slow, and small product size is big, baroque problem.
The present invention provides a kind of optical element for rapid focus, can including the first Zoom lens unit and second
Zoom lens unit, described first Zoom lens unit includes: first substrate, with described first substrate be oppositely arranged second
Substrate, the first electrode unit being located on first substrate and the first alignment films, the second electrode unit being located on second substrate,
Two alignment films, and the first liquid crystal layer being clamped between the first alignment films and the second alignment films；Described second Zoom lens
Unit includes described second substrate, and described second electrode unit being located on described second substrate and the 3rd alignment films, with described
The 3rd substrate that second substrate is oppositely arranged, is located at the 3rd electrode unit on described 3rd substrate and the 4th alignment films, and
It is clamped in the second liquid crystal layer between described 3rd alignment films and described 4th alignment films.
It is preferred that described first Zoom lens unit is liquid crystal lens or liquid crystal microlens array, described second variable
Focus lens unit is liquid crystal microlens array or liquid crystal lens.
It is preferred that described second electrode unit includes: the first public electrode and the second public electrode, described first common electrical
The side towards described first substrate of described second substrate is located in pole, and described second public electrode is located at described second substrate
Towards the side of described 3rd substrate, described first electrode unit includes the first driving electrode and drives electrode exhausted with described first
Second driving electrode of edge, described 3rd electrode unit includes the 3rd driving electrode and drives the of electrode insulation with the described 3rd
4 wheel driven moving electrode.
It is preferred that described first drives electrode and the described 3rd to drive electrode to be circular hole electrode, described second drives electrode
Being circular electrode with described 4 wheel driven moving electrode, described second drives electrode to be located in described first driving electrode, and the described 4th
Electrode is driven to be located in described 3rd driving electrode.
It is preferred that described first public electrode is connected same voltage output end with described second public electrode.
It is preferred that described second electrode unit includes that one the 3rd public electrode, described 3rd public electrode are located at described
The side towards described first substrate of two substrates or be located at the side towards described 3rd substrate of described second substrate, institute
Stating second substrate is plastic tab.
It is preferred that described first electrode unit and described 3rd electrode unit are public electrode, described second electrode list
Unit includes: is located at upper driving electrode group relative with first substrate on second substrate and is located on second substrate and the 3rd substrate phase
To lower driving electrode group, described upper driving electrode group include the 5th driving electrode and the 6th drive electrode, described lower drive electricity
Pole group includes that the 7th driving electrode and the 8th drives electrode, and the described 5th drives electrode and the described 7th to drive electrode to be circular hole electricity
Pole, the described 6th drives electrode and the described 8th to drive electrode to be circular electrode, and the described 6th drives electrode to be located at the described 5th
Drive in electrode and drive electrode insulation with the described 5th, the described 8th drive electrode be located at the described 7th drive electrode in and with
Described 7th drives electrode insulation.
It is preferred that the described optical element for rapid focus also includes the first high impedance transparent membrane and the second high impedance
Transparent membrane, described first high impedance transparent membrane is located at described first electrode unit and the described optics unit for rapid focus
Between first alignment films of part, described second high impedance transparent membrane is located at described 3rd electrode unit with described for the most right
Between 4th alignment films of burnt optical element.
It is preferred that the described optical element for rapid focus also includes: the 3rd high impedance transparent membrane and the 4th high resistant
Anti-transparent membrane, described first drives electrode and the described 3rd to drive electrode to be circular hole electrode, described 3rd high impedance thin transparent
Film is located at described first and is driven in electrode, described 4th high impedance transparent membrane be located at the described 3rd drive electrode in, described the
Two driving electrodes are face electrode with described 4 wheel driven moving electrode, and described second drives electrode to be located at described first drives the remote of electrode
From described first liquid crystal layer side, described 4 wheel driven moving electrode be located at described 3rd drive electrode away from described second liquid crystal layer
Side.
It is preferred that the described optical element for rapid focus also include the first Zoom lens drive circuit, second can
Zoom lens drive circuit, switch unit and control unit, described control unit controls described switch unit switching described the
One Zoom lens drive circuit drives described first Zoom lens unit or the second Zoom lens drive circuit to drive institute
Stating one of second Zoom lens unit and be in lens state, another is in non-lens state.
It is preferred that the liquid crystal molecule of the initial orientation of the liquid crystal molecule of described first liquid crystal layer and described second liquid crystal layer
Initial orientation is parallel to each other or vertically.
The present invention also provides for a kind of imaging device, including: main lens unit, imageing sensor, processor and memory,
Wherein, described imaging device also include optical element, described optical element be as described in front any one for rapid focus
Optical element.
It is preferred that described imaging device is applied to capsule medical apparatus, Aerial photography equipment, unmanned equipment, intelligence
In the guided missile of energy robot, Intelligent worn device, supervision equipment, mobile communication terminal and band camera.
The above-mentioned optical element for rapid focus of the present invention and imaging device, by arranging the first Zoom lens list
Unit and the second Zoom lens units shared second substrate, composition one is for the optical element of rapid focus simultaneously, thus
There is volume little, can rapid focus, the beneficial effect of simple in construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 2.
Fig. 3 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 3.
Fig. 4 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 4.
Fig. 5 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 5.
Fig. 6 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 6.
Fig. 7 is the structural representation of the optical element for rapid focus of the embodiment of the present invention 7.
Fig. 8 is the embodiment of the present invention 8 electrical block diagram for the optical element of rapid focus.
Fig. 9 is the electrical block diagram of imaging device of the present invention.
Detailed description of the invention
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.If it should be noted that do not conflict, this
Each feature in bright embodiment and embodiment can be combined with each other, all within protection scope of the present invention.
Embodiment 1
Refer to the structural representation of the optical element for rapid focus that Fig. 1, Fig. 1 are the embodiment of the present invention 1.Such as Fig. 1 institute
Showing, the optical element 100 for rapid focus of the present invention, including the first Zoom lens unit and the second Zoom lens
Unit, described first Zoom lens unit includes: first substrate 110, the second base being oppositely arranged with described first substrate 110
Plate 140, the first electrode unit 120 being arranged on first substrate 110, the second electrode unit being arranged on second substrate 140,
And the first liquid crystal layer 130 being arranged between first substrate 110 and second substrate 140.First liquid crystal layer 130 includes multiple
It is inclined at an angle the liquid crystal molecule of setting.Additionally, be respectively arranged with on first electrode unit the 120, second electrode unit
Alignment films 111 and 141, the first liquid crystal layer 130 clamps for alignment films 111 and alignment films 141.First electrode unit 120 includes circle
Pore electrod (first drive electrode) 121 and be positioned at the circular electrode that circular hole electrode 121 is insulated from each other with this circular hole electrode 121
(second drives electrode) 122.Second electrode unit includes the first public electrode 151 and the second public electrode 152.Described first is public
Common electrode 151 is located at the side towards described first substrate 110 of described second substrate 140, and described second public electrode 152 sets
The side towards described 3rd substrate 170 in described second substrate 140.It is preferred that the first public electrode 151 is public with second
Electrode 152 is face electrode, covers on second substrate 140 in the way of one whole.For the first Zoom lens unit, circular hole
Form pressure reduction V1 between electrode 121 and the first public electrode 151, between circular electrode 122 and the first public electrode 151, form pressure
Difference V2, under the effect of V1 Yu V2, drives liquid crystal molecule to rotate, forms liquid crystal lens, by regulating the size of V1 Yu V2, and can be right
The focal length of liquid crystal lens is adjusted.
Described second Zoom lens unit includes described second substrate 140, described second electrode 152, with described second
The 3rd substrate 170 that substrate 140 is oppositely arranged, is located at the 3rd electrode unit 180 on described 3rd substrate 170, and is set
Put the second liquid crystal layer 160 between described second substrate 140 and the 3rd substrate 170.Second liquid crystal layer 160 includes multiple with one
Determine the liquid crystal molecule that angle is obliquely installed.Additionally, be respectively arranged with orientation on the second electrode unit, the 3rd electrode unit 180
Film 142 and 171, the second liquid crystal layer 160 clamps for alignment films 142 and alignment films 171.3rd electrode unit 180 includes circular hole electricity
Pole (the 3rd drive electrode) 181 and circular electrode (4 wheel driven insulated from each other with circular hole electrode 181 in being located at circular hole electrode 181
Moving electrode) 182, for the driving of the second Zoom lens unit, it the 3rd drives electrode and 4 wheel driven moving electrode respectively with the
Two public electrodes 152 form pressure reduction, due to similar with the driving of the first Zoom lens unit, with reference to above-mentioned first varifocal
The description of mirror unit.
The optical element for rapid focus of the present invention, by by the first Zoom lens unit, second varifocal
Both mirror units share a second substrate, and the two is combined into an optical element being used for rapid focus, and this is used for soon
The optical element of speed focusing, when imaging device photographed scene, obtains the scene number needed for auto-focusing by one of them
According to, another then utilizes contextual data to change rapidly driving voltage, to realize fast automatic focusing.
In a specific embodiment, described first Zoom lens unit is liquid crystal lens, described second varifocal
Mirror unit is liquid crystal microlens array or liquid crystal lens.Here it is relatively big that liquid crystal lens has size, single liquid crystal lens big
I is corresponding with the main lens size of the camera of imaging device.And liquid crystal microlens array here refers to single lens
Size is less, needs multiple liquid crystal microlens could be with the main lens size of the camera of imaging device in the way of array arrangement
Corresponding.
In another specific embodiment, described first Zoom lens unit is liquid crystal microlens array, described
Two Zoom lens unit are liquid crystal microlens array.
Above-mentioned first electrode unit the 120, second electrode unit and the 3rd electrode unit 180 all use transparent having
The conductive material of photosensitiveness is constituted, as used ITO(indium tin oxide).
In a preferred embodiment, described first public electrode 151 is connected same with described second public electrode 152
Voltage output end.
Additionally, at the beginning of the liquid crystal molecule of the initial orientation of the liquid crystal molecule of described first liquid crystal layer and described second liquid crystal layer
Beginning orientation is parallel to each other or vertically.
Embodiment 2
Refer to the structural representation of the optical element for rapid focus that Fig. 2, Fig. 2 are the embodiment of the present invention 2.Such as Fig. 2 institute
Show, on the basis of the optical element structure for rapid focus shown in Fig. 1, the embodiment of the present invention 2 for rapid focus
Optical element 100A carried out further deformation, differ primarily in that: described second electrode unit is the 3rd common electrical
Pole 150, described 3rd public electrode 150 is located at the side towards described first substrate 110 of described second substrate 140 or sets
The side towards described 3rd substrate 170 in described second substrate 140.It is to say, by the first public electrode 151 and second
An omission in public electrode 152, now, described second substrate 140 is the plastic tab that dielectric constant is lower than glass.When
So, alignment films 142 and 141 remains in the both sides of the 3rd public electrode 150 and arranges near liquid crystal layer.Certainly, explanation is needed
It is, in the present embodiment, due to the first Zoom lens unit and one the 3rd public electrode of the second Zoom lens units shared,
Thus, preferably working method is, when the first Zoom lens cell operation, the second Zoom lens unit is in inoperative
State；When the second Zoom lens cell operation, the first Zoom lens unit is in off working state.
Embodiment 3
Refer to the structural representation of the optical element for rapid focus that Fig. 3, Fig. 3 are the embodiment of the present invention 3.Such as Fig. 3 institute
Show, on the basis of the optical element structure for rapid focus shown in Fig. 1, the embodiment of the present invention 3 for rapid focus
Optical element 200 carried out further deformation.The optical element 200 for rapid focus of embodiment 3 specifically includes that first
Zoom lens unit, the second Zoom lens unit, wherein the first Zoom lens unit includes: first substrate 210, second
Substrate 220, the 4th public electrode 212, alignment films 211, liquid crystal layer the 230, second electrode unit as the first electrode unit, take
To film 221.Second Zoom lens unit includes: second substrate the 220, second electrode unit, alignment films 222, liquid crystal layer 270,
3rd substrate the 260, the 3rd electrode unit 262, alignment films 261.The optical element for rapid focus of the present embodiment 3 and enforcement
Differring primarily in that of the optical element for rapid focus of example 1: the first electrode unit, the electrode of the 3rd electrode unit all become
For public electrode, the second electrode unit then includes: be located at upper driving electrode group relative with first substrate on second substrate
240, it is located on second substrate the lower driving electrode group 250 relative with the 3rd substrate.Described upper driving electrode group 240 includes the 5th
Driving electrode and the 6th to drive electrode, described lower driving electrode group 250 includes that the 7th driving electrode and the 8th drives electrode, described
5th drives electrode and the described 7th to drive electrode to be circular hole electrode, and described 6th driving electrode with described 8th driving electrode is
Circular electrode, the described 6th drives electrode to be located at the described 5th drives electrode interior and drives electrode insulation with the described 5th, described
8th drives electrode to be located at the described 7th drives electrode interior and drives electrode insulation with the described 7th.Here the 5th driving electricity
Pole, the 6th driving electrode, the 7th driving electrode and the 8th drive electrode to drive electrode, the second driving electric with the first of embodiment 1
Pole, the 3rd drive electrode, 4 wheel driven moving electrode structure with act on similar, do not repeat them here.
Embodiment 4
Refer to the structural representation of the optical element for rapid focus that Fig. 4, Fig. 4 are the embodiment of the present invention 4.Such as Fig. 4 institute
Show, on the basis of the optical element structure for rapid focus shown in Fig. 1, the embodiment of the present invention 4 for rapid focus
Optical element 300 carried out further deformation.The optical element 300 for rapid focus of the present embodiment 4 specifically includes that
One Zoom lens unit, the second Zoom lens unit, wherein the first Zoom lens unit includes: first substrate 310,
Two substrate the 320, first electrode units 312, alignment films 311, liquid crystal layer the 330, second electrode unit, alignment films 321.Second is variable
Focus lens unit includes: second substrate the 320, second electrode unit, alignment films 322, liquid crystal layer the 340, the 3rd substrate the 350, the 3rd
Electrode unit 352, alignment films 351.Optical element and the embodiment 1 for rapid focus of the present embodiment 4 for the most right
Differring primarily in that of burnt optical element: it is saturating that the first Zoom lens unit and the second Zoom lens unit are liquid crystal
Mirror.On second substrate, second electrode unit of 320 includes public electrode 323 and lower public electrode 324.When being driven,
Any one in the first Zoom lens unit and the second Zoom lens unit can be selected to measure contextual data, another
Focus according to contextual data.
Embodiment 5
Refer to the structural representation of the optical element for rapid focus that Fig. 5, Fig. 5 are the embodiment of the present invention 5.Such as Fig. 5 institute
Showing, the optical element 400 for rapid focus of the present embodiment 5 includes: the first Zoom lens unit, the second Zoom lens
Unit, wherein the first Zoom lens unit includes: first substrate 410, second substrate the 420, first electrode unit 412, first
Alignment films 411, liquid crystal layer the 430, second electrode unit, the second alignment films 421.Second Zoom lens unit includes: the second base
Plate the 420, second electrode unit, the 3rd alignment films 423, liquid crystal layer the 440, the 3rd substrate the 450, the 3rd electrode unit the 452, the 4th
Alignment films 451.The optical element for rapid focus of the present embodiment 5 and the optical element for rapid focus of embodiment 1
Differ primarily in that: the first Zoom lens unit and the second Zoom lens unit are liquid crystal microlens array.First
The circular hole electrode of the first electrode unit 412 of Zoom lens unit and circular electrode respectively with the second Zoom lens unit
The circular hole electrode of three electrode unit 452 correspondences is identical with circular electrode structure, the second electrode list that second substrate is then arranged
Unit includes two public electrodes 422 and 424.
Embodiment 6
Refer to the structural representation of the optical element for rapid focus that Fig. 6, Fig. 6 are the embodiment of the present invention 6.Such as Fig. 6 institute
Show, the optical element 400 for rapid focus of the embodiment of the present invention 6 and the light for rapid focus of the embodiment of the present invention 5
Learning element 400 structure roughly the same, difference is: the first Zoom lens unit is in the first electrode unit 412 and the first orientation
Arranging the first high impedance transparent membrane 461 between film 411, the second Zoom lens unit is at the 3rd electrode unit 452 and the 4th
Second high impedance transparent membrane 462 is set between alignment films 451.Above-mentioned first high impedance transparent membrane 461 is used for making first can
The lens peculiarity that Zoom lens unit is formed is preferable, and above-mentioned second high impedance transparent membrane 462 is used for making the second Zoom lens
The lens peculiarity that unit is formed is preferable, thus reaches to promote the purpose of the image quality of imaging device.
Embodiment 7
Refer to the structural representation of the optical element for rapid focus that Fig. 7, Fig. 7 are the embodiment of the present invention 7.Such as Fig. 7 institute
Showing, the optical element 500 for rapid focus of the embodiment of the present invention 7 specifically includes that the first Zoom lens unit and second
Zoom lens unit.And the first Zoom lens unit specifically includes that what first substrate 510 and first substrate were oppositely arranged
Second substrate 520.The surface of first substrate 510 is sequentially provided with the first electrode unit, the first alignment films 511.Second substrate 520 table
Face is provided with the second electrode unit, the second alignment films 521.Wherein, it is folded with between the first alignment films 511 and the second alignment films 521
First liquid crystal layer 530.First electrode unit includes that the first driving electrode 512 and second drives electrode 513 and is placed in first and drives
Moving electrode 512 and second drives the insulating barrier between electrode 513, and the first driving electrode 512 is circular hole electrode, in circular hole electrode
Being provided with the 3rd high impedance transparent membrane 514, the 3rd high impedance transparent membrane is rounded.Second driving electrode 513 is whole electricity
Pole, is positioned at above the first driving electrode 512, drives electrode 523 distance the first liquid crystal layer 530 apart from big than second.Second electricity
Pole unit includes the first public electrode 522 and the second public electrode 524, lays respectively at upper and lower two surfaces of second substrate 520,
It is provided with the second alignment films 521 on the first public electrode 522 surface, is provided with the 3rd alignment films on the second public electrode 524 surface
523。
Second Zoom lens unit specifically includes that second substrate 520 and is oppositely arranged with second substrate 520 and far
The 3rd substrate 550 from described first substrate 510.Second substrate 520 surface is provided with the second public electrode of the second electrode unit
524 and the 3rd alignment films 523.3rd substrate 550 surface is provided with the 3rd electrode unit, the 4th alignment films 551.3rd alignment films
523 and the 4th are folded with the second liquid crystal layer 540 between alignment films.3rd electrode unit and the first electrode unit structure are similar to, bag
Include the 3rd driving electrode 552 and 4 wheel driven moving electrode 553 and the 3rd drives between electrode 552 and 4 wheel driven moving electrode 553
Insulating barrier, the 3rd driving electrode 552 is circular hole electrode, is provided with the 4th high impedance transparent membrane 554, the 4th high resistant in circular hole
Anti-transparent membrane 554 is rounded.3rd substrate 550 surface sets gradually 4 wheel driven moving electrode 553, insulating barrier, the 3rd driving electricity
Pole 552 and the 4th alignment films 551.Exist owing to arranging the 3rd high impedance transparent membrane 514 and the 4th high impedance transparent membrane 554
In corresponding circular hole electrode, so can reduce the interference of electromagnetic field in the external world, so that lens peculiarity is more stable, image quality is preferable.
Certainly, in the present embodiment, the first Zoom lens list in the optical element for rapid focus of the present invention
Unit is liquid crystal microlens array, and the second Zoom lens unit is also liquid crystal microlens array.But the invention is not limited in this,
First Zoom lens unit can be liquid crystal lens, and the second Zoom lens unit is also liquid crystal lens.Further, both are also
Be liquid crystal lens or liquid crystal microlens array the most simultaneously, it is possible to be the first Zoom lens unit be liquid crystal microlens array
Time, the second Zoom lens unit can be liquid crystal lens or liquid crystal microlens array.Additionally, it is based on the embodiment of the present invention 7
Can also do many variations on architecture basics, these deformation are as preceding embodiment 1 to 6, as the second electrode unit can be only
Having a public electrode, as the second electrode unit includes that upper and lower two drive electrode groups, first drives electrode group to include distance the
The two-layer driving electrode that one substrate is nearer, structure is similar with the driving electrode on first substrate.And second drives electrode group also to wrap
Include the nearer two-layer of distance the 3rd substrate and drive electrode, similar with the driving electrode on the 3rd substrate in structure.Further, due to
The first Zoom lens unit and the second Zoom lens unit in the optical element of rapid focus are operated in the most simultaneously
Lens state, when arranging two driving electrode groups, it is also possible to be that two driving electrode groups share a whole electricity on second substrate
Pole is as driving electrode, and arranges additionally as the circular hole electrode corresponding respective liquid crystal layer respectively driving electrode, namely two-layer
Being provided with each whole driving electrode between circular hole electrode, so can reduce one and drive electrode, structure becomes simple, and reduces simultaneously
Cost.
Embodiment 8
Refer to the electrical block diagram of the optical element for rapid focus that Fig. 8, Fig. 8 are the embodiment of the present invention 7.Such as figure
Shown in 8, the described optical element for rapid focus also includes the first Zoom lens driving the first Zoom lens unit
Drive circuit 14, drive the second Zoom lens drive circuit 13 of the second Zoom lens unit, switch unit 12 and control
Unit 11 processed, described control unit 11 controls described switch unit 12 and switches described first Zoom lens drive circuit 14 and drive
Described first Zoom lens unit and the second Zoom lens drive circuit 13 drive described second Zoom lens unit it
One is in lens state, and another is in non-lens state.
Structure and the drive circuit of the optical element for rapid focus is mainly illustrated by above example 1 to 8,
In the present invention, the structure for the optical element of rapid focus also can make other change, as the first Zoom lens unit, the
One of two Zoom lens unit use liquid lens.Further, the first Zoom lens unit and the second Zoom lens unit
Electrode position change etc., these all in the present invention in the protection domain of the optical element of rapid focus.
Refer to the electrical block diagram that Fig. 9, Fig. 9 are imaging device of the present invention.As it is shown in figure 9, the present invention also provides for
A kind of imaging device, described imaging device includes: main lens unit 24, the optical element 25 for rapid focus, image sensing
Device 26, processor 21 and memory 22.Main lens unit 24, is positioned at the scene 23 of main lens unit 24 side also for shooting
Image in the opposite side of main lens unit 24.Imageing sensor 26 is for being converted into the signal of telecommunication by the scene image of acquisition and defeated
Go out the described signal of telecommunication as picture signal.Processor 21, for controlling the described optical element 25 for rapid focus, image passes
Sensor 26 and memory 22 work, and described memory 22 is used for storing computer executed instructions, when described imaging device shoots
During given scenario, described processor 21 reads the described computer executed instructions of described memory 22 storage, controls image sensing
Device 26 and the optical element 25 for rapid focus work.
Wherein, the described optical element 25 for rapid focus between main lens unit 24 and imageing sensor 26,
Use the optical element for rapid focus of preceding embodiment 1 to embodiment 7, about the optical element for rapid focus
Concrete structure and circuit refer to Fig. 1 to Fig. 8 and description above, do not repeat them here.
The imaging device of the present invention can be applicable to capsule medical apparatus, Aerial photography equipment, unmanned equipment, intelligence
In the guided missile of robot, Intelligent worn device, supervision equipment, mobile communication terminal and band camera.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or are directly or indirectly used in what other were correlated with
Technical field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (13)
1. the optical element for rapid focus, it is characterised in that the described optical element for rapid focus includes the
One Zoom lens unit and the second Zoom lens unit, described first Zoom lens unit includes: first substrate, with
The second substrate that described first substrate is oppositely arranged, the first electrode unit being located on first substrate and the first alignment films, it is located at
The second electrode unit on second substrate, the second alignment films, and be clamped between the first alignment films and the second alignment films
One liquid crystal layer；Described second Zoom lens unit includes described second substrate, described second be located on described second substrate
Electrode unit and the 3rd alignment films, the 3rd substrate being oppositely arranged with described second substrate, be located on described 3rd substrate
Three electrode units and the 4th alignment films, and it is clamped in the second liquid crystal between described 3rd alignment films and described 4th alignment films
Layer.
2. the optical element for rapid focus as claimed in claim 1, it is characterised in that described first Zoom lens list
Unit is liquid crystal lens or liquid crystal microlens array, described second Zoom lens unit be liquid crystal microlens array or liquid crystal saturating
Mirror.
3. the optical element for rapid focus as claimed in claim 2, it is characterised in that described second electrode unit bag
Include: the first public electrode and the second public electrode, described first public electrode be located at described second substrate towards described first
The side of substrate, described second public electrode is located at the side towards described 3rd substrate of described second substrate, and described first
Electrode unit includes the first driving electrode and drives the second of electrode insulation to drive electrode, described 3rd electrode list with described first
Unit includes the 3rd driving electrode and the 4 wheel driven moving electrode with described 3rd driving electrode insulation.
4. the optical element for rapid focus as claimed in claim 3, it is characterised in that described first drives electrode and institute
Stating the 3rd driving electrode is circular hole electrode, and described second to drive electrode and described 4 wheel driven moving electrode be circular electrode, described the
Two drive electrode to be located in described first driving electrode, and described 4 wheel driven moving electrode is located in described 3rd driving electrode.
5. the optical element for rapid focus as claimed in claim 3, it is characterised in that described first public electrode and institute
State the second public electrode and connect same voltage output end.
6. the optical element for rapid focus as claimed in claim 2, it is characterised in that described second electrode unit includes
One the 3rd public electrode, described 3rd public electrode is located at the side towards described first substrate of described second substrate or sets
In the side towards described 3rd substrate of described second substrate, described second substrate is plastic tab.
7. the optical element for rapid focus as claimed in claim 2, it is characterised in that described first electrode unit and institute
Stating the 3rd electrode unit and be public electrode, described second electrode unit includes: be located on second substrate relative with first substrate
Upper driving electrode group be located on second substrate the lower driving electrode group relative with the 3rd substrate, described upper driving electrode group bag
Including the 5th driving electrode and the 6th and drive electrode, described lower driving electrode group includes that the 7th driving electrode and the 8th drives electrode,
Described 5th drives electrode and the described 7th to drive electrode to be circular hole electrode, and described 6th driving electrode and the described 8th drives electric
Extremely circular electrode, the described 6th drives electrode to be located at the described 5th drives electrode interior and drives electrode insulation with the described 5th,
Described 8th drives electrode to be located at the described 7th drives electrode interior and drives electrode insulation with the described 7th.
8. the optical element for rapid focus as claimed in claim 3, it is characterised in that the described light for rapid focus
Learn element and also include that the first high impedance transparent membrane and the second high impedance transparent membrane, described first high impedance transparent membrane are located at
Between described first electrode unit and the first alignment films of the described optical element for rapid focus, described second high impedance is saturating
Bright film is located between described 3rd electrode unit and the 4th alignment films of the described optical element for rapid focus.
9. the optical element for rapid focus as claimed in claim 3, it is characterised in that the described light for rapid focus
Learning element also to include: the 3rd high impedance transparent membrane and the 4th high impedance transparent membrane, described first drives electrode and described the
Three driving electrodes are circular hole electrode, and described 3rd high impedance transparent membrane is located in described first driving electrode, and the described 4th is high
Transparent impedance film is located in described 3rd driving electrode, and described second driving electrode is face electricity with described 4 wheel driven moving electrode
Pole, described second drive electrode be located at described first drive electrode away from described first liquid crystal layer side, the described 4th drives
Electrode be located at described 3rd drive electrode away from described second liquid crystal layer side.
10. the optical element for rapid focus as described in any one of claim 1 to 9, it is characterised in that described for soon
The optical element of speed focusing also includes the first Zoom lens drive circuit, the second Zoom lens drive circuit, switch unit
And control unit, described control unit controls the described first Zoom lens drive circuit of described switch unit switching and drives institute
State the first Zoom lens unit or the second Zoom lens drive circuit drives one of described second Zoom lens unit place
In lens state, another is in non-lens state.
11. optical elements for rapid focus as described in any one of claim 1 to 9, it is characterised in that described first liquid
The initial orientation of the liquid crystal molecule of crystal layer is parallel to each other or vertical with the initial orientation of the liquid crystal molecule of described second liquid crystal layer.
12. 1 kinds of imaging devices, described imaging device includes: main lens unit, imageing sensor, processor and memory,
It is characterized in that, described imaging device also includes that an optical element, described optical element are institute any one of claim 1 to 11
The optical element for rapid focus stated.
13. imaging devices as claimed in claim 12, it is characterised in that described imaging device is applied to capsule type medical and sets
Standby, Aerial photography equipment, unmanned equipment, intelligent robot, Intelligent worn device, supervision equipment, mobile communication terminal with
And in the guided missile of band camera.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610376592.6A CN105842888A (en) | 2016-05-31 | 2016-05-31 | Quick focusing optical element and imaging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610376592.6A CN105842888A (en) | 2016-05-31 | 2016-05-31 | Quick focusing optical element and imaging device |
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| CN201610376592.6A Pending CN105842888A (en) | 2016-05-31 | 2016-05-31 | Quick focusing optical element and imaging device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168727A (en) * | 2016-08-29 | 2016-11-30 | 成都微晶景泰科技有限公司 | Liquid crystal lens array, imaging device and method |
| CN107422570A (en) * | 2017-08-16 | 2017-12-01 | 集美大学 | double-layer liquid crystal lens device and preparation method thereof |
| CN111292232A (en) * | 2018-12-06 | 2020-06-16 | 成都微晶景泰科技有限公司 | Lens array image splicing method and device and storage medium |
| CN112034658A (en) * | 2020-11-03 | 2020-12-04 | 南昌虚拟现实研究院股份有限公司 | Zoom liquid crystal lens |
| CN113467135A (en) * | 2021-06-17 | 2021-10-01 | 福州大学 | Double-layer liquid crystal lens for light field imaging and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672990A (en) * | 2008-09-10 | 2010-03-17 | 一品光学工业股份有限公司 | Zoom liquid crystal lens |
| TW201400881A (en) * | 2012-06-22 | 2014-01-01 | Silicon Touch Tech Inc | Electrically tunable liquid crystal lens set with central electrode |
| CN103744237A (en) * | 2014-01-21 | 2014-04-23 | 东南大学 | Central point electrode extraction type nematic-phase self-adaptive liquid crystal lens |
| CN103760711A (en) * | 2014-01-21 | 2014-04-30 | 东南大学 | Central point electrode leading-out type blue phase liquid crystal lens |
| CN103890646A (en) * | 2011-10-25 | 2014-06-25 | 日本电气硝子株式会社 | Liquid crystal element and cell for liquid crystal element |
| CN204129399U (en) * | 2014-11-05 | 2015-01-28 | 华中科技大学 | Based on the lenticular control optical chip of electrically-controlled liquid crystal bimodulus |
| CN205787458U (en) * | 2016-05-31 | 2016-12-07 | 成都微晶景泰科技有限公司 | Varifocal optical element and imaging device |
-
2016
- 2016-05-31 CN CN201610376592.6A patent/CN105842888A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672990A (en) * | 2008-09-10 | 2010-03-17 | 一品光学工业股份有限公司 | Zoom liquid crystal lens |
| CN103890646A (en) * | 2011-10-25 | 2014-06-25 | 日本电气硝子株式会社 | Liquid crystal element and cell for liquid crystal element |
| TW201400881A (en) * | 2012-06-22 | 2014-01-01 | Silicon Touch Tech Inc | Electrically tunable liquid crystal lens set with central electrode |
| CN103744237A (en) * | 2014-01-21 | 2014-04-23 | 东南大学 | Central point electrode extraction type nematic-phase self-adaptive liquid crystal lens |
| CN103760711A (en) * | 2014-01-21 | 2014-04-30 | 东南大学 | Central point electrode leading-out type blue phase liquid crystal lens |
| CN204129399U (en) * | 2014-11-05 | 2015-01-28 | 华中科技大学 | Based on the lenticular control optical chip of electrically-controlled liquid crystal bimodulus |
| CN205787458U (en) * | 2016-05-31 | 2016-12-07 | 成都微晶景泰科技有限公司 | Varifocal optical element and imaging device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168727A (en) * | 2016-08-29 | 2016-11-30 | 成都微晶景泰科技有限公司 | Liquid crystal lens array, imaging device and method |
| CN107422570A (en) * | 2017-08-16 | 2017-12-01 | 集美大学 | double-layer liquid crystal lens device and preparation method thereof |
| CN111292232A (en) * | 2018-12-06 | 2020-06-16 | 成都微晶景泰科技有限公司 | Lens array image splicing method and device and storage medium |
| CN111292232B (en) * | 2018-12-06 | 2023-08-15 | 成都微晶景泰科技有限公司 | Lens array image stitching method, device and storage medium |
| CN112034658A (en) * | 2020-11-03 | 2020-12-04 | 南昌虚拟现实研究院股份有限公司 | Zoom liquid crystal lens |
| CN113467135A (en) * | 2021-06-17 | 2021-10-01 | 福州大学 | Double-layer liquid crystal lens for light field imaging and manufacturing method thereof |
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