CN205787458U - Varifocal optical element and imaging device - Google Patents
Varifocal optical element and imaging device Download PDFInfo
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- CN205787458U CN205787458U CN201620516195.XU CN201620516195U CN205787458U CN 205787458 U CN205787458 U CN 205787458U CN 201620516195 U CN201620516195 U CN 201620516195U CN 205787458 U CN205787458 U CN 205787458U
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Abstract
This utility model discloses a kind of varifocal optical element and imaging device.This varifocal optical element includes the first Zoom lens unit and the second Zoom lens unit.This first Zoom lens unit includes: first substrate, second substrate, the first electrode unit being located on first substrate and the first alignment films, the second electrode unit of being located on second substrate, the second 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, the 3rd substrate, described second electrode unit being located on described second substrate and the 3rd alignment films, it is located at the 3rd electrode unit on described 3rd substrate and the 4th alignment films, and is clamped in the second liquid crystal layer between described 3rd alignment films and described 4th alignment films.It is little that varifocal optical element of the present utility model has volume, and autozoom is fast, the beneficial effect of simple in construction.
Description
Technical field
This utility model relates to technical field of imaging, is specifically related to a kind of varifocal optical element 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 zoom mechanism bulky and with high costs.Above-mentioned zoom mechanism needs to do mechanical movement, and have even needs hands
Dynamic regulation could realize, not only slow to vertiginous scene zoom, and energy consumption is high, complex structural designs, it is difficult to meets
The needs of shooting Rapid Variable Design scene.
Utility model content
In view of this, this utility model provides a kind of varifocal optical element and imaging device, in order to solve prior art
Middle zoom is slow, and small product size is big, baroque problem.
This utility model provides a kind of varifocal optical element, varifocal including the first Zoom lens unit and second
Lens unit, described first Zoom lens unit includes: first substrate, the second base being oppositely arranged with described first substrate
Plate, the first electrode unit being located on first substrate and the first alignment films, the second electrode unit being located on second substrate, second
Alignment films, and the first liquid crystal layer being clamped between the first alignment films and the second alignment films；Described second Zoom lens list
Unit includes described second substrate, described second electrode unit being located on described second substrate and the 3rd alignment films, with described
The 3rd substrate that two substrates are oppositely arranged, is located at the 3rd electrode unit on described 3rd substrate and the 4th alignment films, and folder
Hold 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 drive electrode and exhausted with described first drive electrode
Second drive electrode of edge, described 3rd electrode unit include the 3rd drive electrode and with described 3rd drive electrode insulation the
Four drive electrodes.
It is preferred that described first drive electrode and described 3rd drive electrode are circular hole electrode, described second drive electrode
Being circular electrode with described 4th drive electrode, described second drive electrode is located in described first drive electrode, and the described 4th
Drive electrode is located in described 3rd drive 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 drive electrode group relative with first substrate on second substrate and is located on second substrate and the 3rd substrate phase
To lower drive electrode group, described upper drive electrode group includes the 5th drive electrode and the 6th drive electrode, described lower drives electricity
Pole group includes that the 7th drive electrode and the 8th drive electrode, described 5th drive electrode and described 7th drive electrode are circular hole electricity
Pole, described 6th drive electrode and described 8th drive electrode are circular electrode, and described 6th drive electrode is located at the described 5th
In drive electrode and with described 5th drive electrode insulation, in described 8th drive electrode is located at described 7th drive electrode and with
Described 7th drive electrode insulation.
It is preferred that described varifocal optical element also includes the first high impedance transparent membrane and the second high impedance thin transparent
Film, described first high impedance transparent membrane is located at the first alignment films of described first electrode unit and described varifocal optical element
Between, described second high impedance transparent membrane is located at the 4th orientation of described 3rd electrode unit and described varifocal optical element
Between film.
It is preferred that described varifocal optical element also includes: three-hypers transparent impedance thin film and the 4th high impedance thin transparent
Film, described first drive electrode and described 3rd drive electrode are circular hole electrode, and described three-hypers transparent impedance thin film is located at institute
Stating in the first drive electrode, described 4th high impedance transparent membrane is located in described 3rd drive electrode, and described second drives electricity
Pole and described 4th drive electrode are face electrode, described second drive electrode be located at described first drive electrode away from described the
One liquid crystal layer side, described 4th drive electrode be located at described 3rd drive electrode away from described second liquid crystal layer side.
It is preferred that described varifocal optical element also includes the first Zoom lens drive circuit, the second Zoom lens
Drive circuit, switch unit and control unit, it is described first varifocal that described control unit controls the switching of described switch unit
The lens drive circuit described first Zoom lens unit of driving or the second Zoom lens drive circuit driving described second can
One of Zoom lens unit is in lens state, and 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.
This utility model also provides for a kind of imaging device, including: main lens unit, imageing sensor, processor and deposit
Reservoir, wherein, described imaging device also includes that optical element, described optical element are the varifocal optics as described in front any one
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 photographic head.
Above-mentioned varifocal optical element of the present utility model and imaging device, by arrange the first Zoom lens unit with
And the second Zoom lens units shared second substrate, one varifocal optical element of composition simultaneously, thus it is little to have volume, from
Dynamic zoom is fast, the beneficial effect of simple in construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the varifocal optical element of this utility model embodiment 1.
Fig. 2 is the structural representation of the varifocal optical element of this utility model embodiment 2.
Fig. 3 is the structural representation of the varifocal optical element of this utility model embodiment 3.
Fig. 4 is the structural representation of the varifocal optical element of this utility model embodiment 4.
Fig. 5 is the structural representation of the varifocal optical element of this utility model embodiment 5.
Fig. 6 is the structural representation of the varifocal optical element of this utility model embodiment 6.
Fig. 7 is the structural representation of the varifocal optical element of this utility model embodiment 7.
Fig. 8 is the electrical block diagram of the varifocal optical element of this utility model embodiment 8.
Fig. 9 is the electrical block diagram of this utility model imaging device.
Detailed description of the invention
With embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.If it should be noted that do not conflict,
Each feature in this utility model embodiment and embodiment can be combined with each other, all protection domain of the present utility model it
In.
Embodiment 1
Refer to the structural representation of the varifocal optical element that Fig. 1, Fig. 1 are this utility model embodiment 1.Such as Fig. 1 institute
Show, varifocal optical element 100 of the present utility model, including the first Zoom lens unit and the second Zoom lens list
Unit, described first Zoom lens unit includes: first substrate 110, the second substrate being oppositely arranged with described first substrate 110
140, the first electrode unit 120 of being arranged on first substrate 110, the second electrode unit being arranged on second substrate 140, with
And the first liquid crystal layer 130 being arranged between first substrate 110 and second substrate 140.First liquid crystal layer 130 include multiple with
The liquid crystal molecule that certain angle is obliquely installed.Take additionally, be respectively arranged with on first electrode unit the 120, second electrode unit
To film 111 and 141, the first liquid crystal layer 130 clamps for alignment films 111 and alignment films 141.First electrode unit 120 includes circular hole
Electrode (the first drive electrode) 121 and be positioned at circular hole electrode 121 circular electrode insulated from each other with this circular hole electrode 121 (the
Two drive electrodes) 122.Second electrode unit includes the first public electrode 151 and the second public electrode 152.Described first public
Electrode 151 is located at the side towards described first substrate 110 of described second substrate 140, and described second public electrode 152 is located at
The side towards described 3rd substrate 170 of described second substrate 140.It is preferred that the first public electrode 151 and the second common electrical
Pole 152 is face electrode, covers on second substrate 140 in the way of one whole.For the first Zoom lens unit, circular hole electricity
Form pressure reduction V1 between pole 121 and the first public electrode 151, between circular electrode 122 and the first public electrode 151, form pressure reduction
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 to liquid
The focal length of brilliant 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, its 3rd drive electrode and the 4th drive electrode are respectively with
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.
Varifocal optical element of the present utility model, by by the first Zoom lens unit, the second Zoom lens list
Both shared second substrates of unit, and the two is combined into a varifocal optical element, this varifocal optical element is used for
During imaging device photographed scene, obtaining the contextual data needed for auto-focusing by one of them, another then utilizes scene number
According to changing 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 photographic head 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 photographic head 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 varifocal optical element that Fig. 2, Fig. 2 are this utility model embodiment 2.Such as Fig. 2 institute
Show, on the basis of the varifocal optical element structure shown in Fig. 1, the varifocal optical element of this utility model embodiment 2
100A has carried out further deformation, differs primarily in that: described second electrode unit is the 3rd public electrode 150, described
3rd public electrode 150 is located at the side towards described first substrate 110 of described second substrate 140 or is located at described second
The side towards described 3rd substrate 170 of substrate 140.It is to say, by the first public electrode 151 and the second public electrode
An omission in 152, now, described second substrate 140 is the plastic tab that dielectric constant is lower than glass.Certainly, orientation
Film 142 and 141 remains in the both sides of the 3rd public electrode 150 and arranges near liquid crystal layer.Certainly, it should be noted that this reality
Execute in example, due to the first Zoom lens unit and one the 3rd public electrode of the second Zoom lens units shared, thus, relatively
Good working method is, when the first Zoom lens cell operation, the second Zoom lens unit is in off working state；?
During 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 varifocal optical element that Fig. 3, Fig. 3 are this utility model embodiment 3.Such as Fig. 3 institute
Show, on the basis of the varifocal optical element structure shown in Fig. 1, the varifocal optical element 200 of this utility model embodiment 3
Carry out further deformation.The varifocal optical element 200 of embodiment 3 specifically include that the first Zoom lens unit, second can
Zoom lens unit, wherein the first Zoom lens unit includes: first substrate 210, second substrate 220, as the first electrode
4th public electrode 212 of unit, alignment films 211, liquid crystal layer the 230, second electrode unit, alignment films 221.Second is varifocal
Mirror unit includes: second substrate the 220, second electrode unit, alignment films 222, liquid crystal layer the 270, the 3rd substrate the 260, the 3rd electrode
Unit 262, alignment films 261.The varifocal optical element of the present embodiment 3 and the main region of the varifocal optical element of embodiment 1
It is not: the first electrode unit, the electrode of the 3rd electrode unit all become public electrode, and the second electrode unit then includes: set
Upper drive electrode group 240 relative with first substrate on second substrate, be located on second substrate relative with the 3rd substrate under
Drive electrode group 250.Described upper drive electrode group 240 includes the 5th drive electrode and the 6th drive electrode, described lower driving electricity
Pole group 250 includes that the 7th drive electrode and the 8th drive electrode, described 5th drive electrode and described 7th drive electrode are circle
Pore electrode, described 6th drive electrode and described 8th drive electrode are circular electrode, and described 6th drive electrode is located at described
Insulating in 5th drive electrode and with described 5th drive electrode, described 8th drive electrode is located in described 7th drive electrode
And insulate with described 7th drive electrode.Here the 5th drive electrode, the 6th drive electrode, the 7th drive electrode and the 8th drive
Moving electrode and the first drive electrode of embodiment 1, the second drive electrode, the 3rd drive electrode, the 4th drive electrode structure and work
With similar, do not repeat them here.
Embodiment 4
Refer to the structural representation of the varifocal optical element that Fig. 4, Fig. 4 are this utility model embodiment 4.Such as Fig. 4 institute
Show, on the basis of the varifocal optical element structure shown in Fig. 1, the varifocal optical element 300 of this utility model embodiment 4
Carry out further deformation.The varifocal optical element 300 of the present embodiment 4 specifically include that the first Zoom lens unit, second
Zoom lens unit, wherein the first Zoom lens unit includes: first substrate 310, second substrate the 320, first electrode list
Unit 312, alignment films 311, liquid crystal layer the 330, second electrode unit, alignment films 321.Second Zoom 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.The varifocal optical element of the present embodiment 4 differs primarily in that with the varifocal optical element of embodiment 1: first is variable
Focus lens unit and the second Zoom lens unit are liquid crystal lens.On second substrate, second electrode unit of 320 includes
Public electrode 323 and lower public electrode 324.When being driven, the first Zoom lens unit and second variable can be selected
Any one in focus lens unit measures contextual data, and another is focused according to contextual data.
Embodiment 5
Refer to the structural representation of the varifocal optical element that Fig. 5, Fig. 5 are this utility model embodiment 5.Such as Fig. 5 institute
Showing, the varifocal optical element 400 of the present embodiment 5 includes: the first Zoom lens unit, the second Zoom lens unit, its
In the first Zoom lens unit include: first substrate 410, second substrate the 420, first electrode unit the 412, first alignment films
411, liquid crystal layer the 430, second electrode unit, the second alignment films 421.Second Zoom lens unit includes: second substrate 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 varifocal optical element of the present embodiment 5 differs primarily in that with the varifocal optical element of embodiment 1: first is variable
Focus lens unit and the second Zoom lens unit are liquid crystal microlens array.First electrode of the first Zoom lens unit
The circular hole that the circular hole electrode of unit 412 and circular electrode are corresponding with the second Zoom lens unit the 3rd electrode unit 452 respectively
Electrode is identical with circular electrode structure, and the second electrode unit that second substrate is then arranged includes two public electrode 422 Hes
424。
Embodiment 6
Refer to the structural representation of the varifocal optical element that Fig. 6, Fig. 6 are this utility model embodiment 6.Such as Fig. 6 institute
Show, the varifocal optical element 400 of this utility model embodiment 6 and the varifocal optical element 400 of this utility model embodiment 5
Structure is roughly the same, and difference is: the first Zoom lens unit is between the first electrode unit 412 and the first alignment films 411
Arranging the first high impedance transparent membrane 461, the second Zoom lens unit is in the 3rd electrode unit 452 and the 4th alignment films 451
Between the second high impedance transparent membrane 462 is set.Above-mentioned first high impedance transparent membrane 461 is used for making the first Zoom lens list
The lens peculiarity that unit is formed is preferable, and above-mentioned second high impedance transparent membrane 462 is for making the second Zoom lens unit be formed
Lens peculiarity is preferable, thus reaches to promote the purpose of the image quality of imaging device.
Embodiment 7
Refer to the structural representation of the varifocal optical element that Fig. 7, Fig. 7 are this utility model embodiment 7.Such as Fig. 7 institute
Showing, the varifocal optical element 500 of this utility model embodiment 7 specifically includes that the first Zoom lens unit and second variable
Focus lens unit.And the first Zoom lens unit specifically include that first substrate 510 and first substrate are 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 surface sets
There are the second electrode unit, the second alignment films 521.Wherein, it is folded with first between the first alignment films 511 and the second alignment films 521
Liquid crystal layer 530.First electrode unit includes the first drive electrode 512 and the second drive electrode 513 and is placed in the first driving electricity
Insulating barrier between pole 512 and the second drive electrode 513, the first drive electrode 512 is circular hole electrode, is provided with in circular hole electrode
Three-hypers transparent impedance thin film 514, this three-hypers transparent impedance thin film is rounded.Second drive electrode 513 is whole electrode, position
Above the first drive electrode 512, than second drive electrode 523 distance the first liquid crystal layer 530 apart from big.Second electrode unit
Including the first public electrode 522 and the second public electrode 524, lay respectively at upper and lower two surfaces of second substrate 520, first
Public electrode 522 surface is provided with the second alignment films 521, is provided with the 3rd alignment films 523 on the second public electrode 524 surface.
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 between the 3rd drive electrode 552 and the 4th drive electrode 553 and the 3rd drive electrode 552 and the 4th drive electrode 553
Insulating barrier, the 3rd drive 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 the 4th drive electrode 553, insulating barrier, the 3rd driving electricity
Pole 552 and the 4th alignment films 551.Exist owing to arranging three-hypers transparent impedance thin film 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 unit in varifocal optical element of the present utility model is
Liquid crystal microlens array, the second Zoom lens unit is also liquid crystal microlens array.But this utility model is not limited thereto,
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, based on this utility model embodiment
Can also do many variations on the architecture basics of 7, these deformation are as preceding embodiment 1 to 6, as permissible in the second electrode unit
Only having a public electrode, as the second electrode unit includes upper and lower two drive electrode groups, the first drive electrode group includes distance
The two-layer drive electrode that first substrate is nearer, structure is similar with the drive electrode on first substrate.And the second drive electrode group is also
Including the two-layer drive electrode that distance the 3rd substrate is nearer, similar with the drive electrode on the 3rd substrate in structure.Further, due to
The first Zoom lens unit and the second Zoom lens unit in varifocal optical element are operated in lenticular the most simultaneously
State, when arranging two drive electrode groups on second substrate, it is also possible to is that two drive electrode groups share a whole electrode conduct
Drive electrode, and the circular hole electrode corresponding respective liquid crystal layer respectively additionally as drive electrode is arranged, namely two-layer circular hole electricity
Being provided with each whole drive electrode between pole, so can reduce by a drive electrode, structure becomes simple, and reduces into simultaneously
This.
Embodiment 8
Refer to the electrical block diagram of the varifocal optical element that Fig. 8, Fig. 8 are this utility model embodiment 7.Such as figure
Shown in 8, described varifocal optical element also includes the first Zoom lens drive circuit driving the first Zoom lens unit
14, the second Zoom lens drive circuit 13, switch unit 12 and the control unit 11 of the second Zoom lens unit are driven,
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 one of described second Zoom lens unit to be in
Specular state, another is in non-lens state.
Structure and the drive circuit of varifocal optical element is mainly illustrated, in this practicality by above example 1 to 8
In novel, the structure of varifocal optical element also can make other change, such as the first Zoom lens unit, the second Zoom lens
One of unit uses liquid lens.Further, the electrode position of the first Zoom lens unit and the second Zoom lens unit is sent out
Changing etc., these are all in the protection domain of varifocal optical element of the present utility model.
Refer to the electrical block diagram that Fig. 9, Fig. 9 are this utility model imaging device.As it is shown in figure 9, this practicality is new
Type also provides for a kind of imaging device, and described imaging device includes: main lens unit 24, varifocal optical element 25, image sensing
Device 26, processor 21 and memorizer 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, be used for controlling described varifocal optical element 25, imageing sensor 26 with
And memorizer 22 works, described memorizer 22 is used for storing computer executed instructions, when described imaging device shoots given scenario
Time, described processor 21 reads the described computer executed instructions of described memorizer 22 storage, controls imageing sensor 26 and can
Focus optical element 25 works.
Wherein, described varifocal optical element 25 is between main lens unit 24 and imageing sensor 26, before employing
The varifocal optical element of embodiment 1 to embodiment 7, concrete structure and circuit about varifocal optical element refer to Fig. 1
To Fig. 8 and description above, do not repeat them here.
Imaging device of the present utility model can be applicable to capsule medical apparatus, Aerial photography equipment, unmanned equipment,
In the guided missile of intelligent robot, Intelligent worn device, supervision equipment, mobile communication terminal and band photographic head.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, all
It is the equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion, or directly or indirectly uses
In the technical field that other are relevant, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (13)
1. a varifocal optical element, it is characterised in that described varifocal optical element includes the first Zoom lens unit
And the second Zoom lens unit, described first Zoom lens unit includes: first substrate, relative with described first substrate
The second substrate arranged, the first electrode unit being located on first substrate and the first alignment films, second be located on second substrate
Electrode unit, the second 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, described second electrode unit being located on described second substrate and the 3rd orientation
Film, the 3rd substrate being oppositely arranged with described second substrate, the 3rd electrode unit and the 4th being located on described 3rd substrate takes
To film, and it is clamped in the second liquid crystal layer between described 3rd alignment films and described 4th alignment films.
Varifocal optical element the most as claimed in claim 1, it is characterised in that described first Zoom lens unit is liquid crystal
Lens or liquid crystal microlens array, described second Zoom lens unit is liquid crystal microlens array or liquid crystal lens.
Varifocal optical element the most as claimed in claim 2, it is characterised in that described second electrode unit includes: first is public
Common electrode and the second public electrode, described first public electrode be located at described second substrate towards the one of described first substrate
Side, described second public electrode is located at the side towards described 3rd substrate of described second substrate, described first electrode unit
Including the first drive electrode and with the second drive electrode of described first drive electrode insulation, described 3rd electrode unit includes the
Three drive electrodes and the 4th drive electrode with described 3rd drive electrode insulation.
Varifocal optical element the most as claimed in claim 3, it is characterised in that described first drive electrode drives with the described 3rd
Galvanic electricity extremely circular hole electrode, described second drive electrode and described 4th drive electrode are circular electrode, and described second drives electricity
Pole is located in described first drive electrode, and described 4th drive electrode is located in described 3rd drive electrode.
Varifocal optical element the most as claimed in claim 3, it is characterised in that described first public electrode is public with described second
Common electrode connects same voltage output end.
Varifocal optical element the most as claimed in claim 2, it is characterised in that described second electrode unit includes that one the 3rd is public
Common electrode, described 3rd public electrode is located at the side towards described first substrate of described second substrate or is located at described
The side towards described 3rd substrate of two substrates, described second substrate is plastic tab.
Varifocal optical element the most as claimed in claim 2, it is characterised in that described first electrode unit and described 3rd electricity
Pole unit is public electrode, and described second electrode unit includes: be located at upper driving relative with first substrate on second substrate
Electrode group be located on second substrate the lower drive electrode group relative with the 3rd substrate, described upper drive electrode group includes that the 5th drives
Moving electrode and the 6th drive electrode, described lower drive electrode group includes the 7th drive electrode and the 8th drive electrode, the described 5th
Drive electrode and described 7th drive electrode are circular hole electrode, and described 6th drive electrode and described 8th drive electrode are circular
Electrode, insulate in described 6th drive electrode is located at described 5th drive electrode and with described 5th drive electrode, and the described 8th
Insulate in drive electrode is located at described 7th drive electrode and with described 7th drive electrode.
Varifocal optical element the most as claimed in claim 3, it is characterised in that described varifocal optical element also includes 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 between the first alignment films of described varifocal optical element, described second high impedance transparent membrane is located at described 3rd electrode list
Between first and the 4th alignment films of described varifocal optical element.
Varifocal optical element the most as claimed in claim 3, it is characterised in that described varifocal optical element also includes: the
Three-hypers transparent impedance thin film and the 4th high impedance transparent membrane, described first drive electrode and described 3rd drive electrode are circular hole
Electrode, described three-hypers transparent impedance thin film is located in described first drive electrode, and described 4th high impedance transparent membrane is located at
In described 3rd drive electrode, described second drive electrode and described 4th drive electrode are face electrode, and described second drives electricity
Pole be located at described first drive electrode away from described first liquid crystal layer side, described 4th drive electrode is located at the described 3rd and is driven
Moving electrode away from described second liquid crystal layer side.
10. the varifocal optical element as described in any one of claim 1 to 9, it is characterised in that described varifocal optical element
Also include 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 described first Zoom lens
Unit or the second Zoom lens drive circuit drive one of described second Zoom lens unit to be in lens state, at another
In non-lens state.
The 11. varifocal optical elements as described in any one of claim 1 to 9, it is characterised in that the liquid of described first liquid crystal layer
The brilliant initial orientation of molecule 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 memorizer,
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 varifocal optical element 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 photographic head.
Priority Applications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842888A (en) * | 2016-05-31 | 2016-08-10 | 成都微晶景泰科技有限公司 | Quick focusing optical element and imaging device |
| TWI663430B (en) * | 2017-11-27 | 2019-06-21 | 點晶科技股份有限公司 | Multi-function lens device |
| WO2020181637A1 (en) * | 2019-03-13 | 2020-09-17 | 武汉华星光电半导体显示技术有限公司 | Display device with built-in lens module |
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2016
- 2016-05-31 CN CN201620516195.XU patent/CN205787458U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842888A (en) * | 2016-05-31 | 2016-08-10 | 成都微晶景泰科技有限公司 | Quick focusing optical element and imaging device |
| TWI663430B (en) * | 2017-11-27 | 2019-06-21 | 點晶科技股份有限公司 | Multi-function lens device |
| US10444594B2 (en) | 2017-11-27 | 2019-10-15 | Silicon Touch Technology Inc. | Multi-function lens device |
| WO2020181637A1 (en) * | 2019-03-13 | 2020-09-17 | 武汉华星光电半导体显示技术有限公司 | Display device with built-in lens module |
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