CN107656431A - A kind of holographic zoom system, pancreatic system based on liquid device - Google Patents
A kind of holographic zoom system, pancreatic system based on liquid device Download PDFInfo
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- CN107656431A CN107656431A CN201710890526.5A CN201710890526A CN107656431A CN 107656431 A CN107656431 A CN 107656431A CN 201710890526 A CN201710890526 A CN 201710890526A CN 107656431 A CN107656431 A CN 107656431A
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- 239000007788 liquid Substances 0.000 title claims abstract description 134
- 239000000758 substrate Substances 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 10
- 230000009466 transformation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 229910052934 alunite Inorganic materials 0.000 description 2
- 239000010424 alunite Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 238000001093 holography Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/10—Processes or apparatus for producing holograms using modulated reference beam
- G03H1/12—Spatial modulation, e.g. ghost imaging
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2249—Holobject properties
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The present invention relates to a kind of holographic zoom system, pancreatic system based on liquid device.The present invention mainly solves the ropy technical problem of complicated, operating difficulties existing for existing holographic display system and reproduction image.The technical solution adopted by the present invention is：A kind of holographic zoom system, pancreatic system based on liquid device, it includes collimated light source, SLM, liquid lens, liquid diaphragm and receiving screen, the collimated light source is located in SLM input path, the liquid lens is located at behind SLM, the liquid diaphragm is located at behind liquid lens, and the receiving screen is located at behind liquid diaphragm.The present invention encodes Fresnel lens on SLM, by changing the focal length of Fresnel lens and liquid lens, can change the size of reproduction image on the premise of system element position is not changed.In order to obtain the holographic reconstructed image of high quality on receiving screen, the Advanced Diffraction picture in holographic zoom system, pancreatic system is eliminated using liquid diaphragm, so as to realize that the holographic zoom of high quality is shown.
Description
Technical field
The present invention relates to a kind of holographic zoom system, pancreatic system based on liquid device, it belongs to holography field.
Background technology
As one kind of Three-dimensional Display, holography can either record whole field informations of object, and and can is by light
Phase and amplitude information in are recorded with the form of interference fringe, therefore are considered as optimal Three-dimensional Display mode
One of.In recent years, in order to meet the needs of three-dimension dynamical display, the holographic display based on spatial light modulator (SLM) receives
Extensive concern.However, due to the influence of SLM itself dot structures, during the reconstruction of hologram is calculated, there can be colored color
The problems such as difference, Zero-order diffractive, Advanced Diffraction, limited visual angle, the quality of reproduction image is had a strong impact on, so as to govern holographic display
Development.In order to realize the reconstruction of hologram of no light disturbance, traditional method is to be separated bad light and reproduction image, then is made
Eliminated with 4f systems and wave filter, system is usually relatively complex, if thinking to realize Zoom effect again, system is then more difficult to take
Build.
The content of the invention
Present invention aim to address the matter of complicated, operating difficulties and reproduction image existing for existing holographic display system
Measure the technical problem of difference, there is provided a kind of holographic zoom system, pancreatic system based on liquid device.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of holographic zoom system, pancreatic system based on liquid device, it include collimated light source, spatial light modulator, liquid lens,
Liquid diaphragm and receiving screen, the collimated light source are located in the input path of spatial light modulator, and the liquid lens is located at sky
Between behind optical modulator, the liquid diaphragm is located at behind liquid lens, and the receiving screen is located at behind liquid diaphragm.
Further, spatial light modulator and liquid lens the composition zoom modules, d1It is light source to space light modulation
The distance between device, when light source is entirely collimated, d1Equal to infinite；d2It is the distance between spatial light modulator and liquid lens,
d3It is the distance between liquid lens and receiving screen；In order to realize the function of zoom, Fresnel is encoded in spatial light modulator
Lens, and its focal length is designated as fF, fLIt is the focal length of liquid lens；According to Nazarathy and Shamir algorithms by the zoom modules
Transmission function T be expressed as：
In formula：Q is the multiplying of secondary phase index, and Ff is the Fourier transformation to holographic facet, and V is that Fourier scales, λ
It is the wavelength of light wave；Obtained under the conditions of Fraunhofer diffraction：
Therefore formula (1) can use formula (3) to represent：
As M=λ [d2+d3-d2×d3(1/fL)] when, the COMPLEX AMPLITUDE function U (ξ, η) on receiving screen is expressed as：
Now the Fourier transformation of holographic facet is placed exactly in d3Place, and enlargement ratio is M；When the position of each element in system
When putting fixed, d1、d2And d3For constant, now by changing fFAnd fLTo adjust the size of reproduction image, so as to realize the effect of zoom
Fruit.
Further, the liquid diaphragm includes upper substrate, clear hard cavity, infrabasal plate, Intermediate substrate, black conductive
Liquid, dielectric layer, middle part ITO electrode layer, bottom ITO electrode layer, colourless transparent liquid and ring washer；Wherein, in intermediate base
Middle part ITO electrode layer is coated with plate, and Intermediate substrate center is provided with light hole, the light hole is the maximum thang-kng of liquid diaphragm
Aperture, its periphery are evenly distributed with several apertures；Ring washer and infrabasal plate close adhesion, the lower base in air ring collar aperture
Bottom ITO electrode layer is coated with plate, dielectric layer is provided with above bottom ITO electrode layer and middle part ITO electrode layer；Ring washer with
Infrabasal plate is located at the bottom in clear hard cavity, and black conductive liquid is located above ring washer and one circle of middle formation
Ring-shaped hole, colourless transparent liquid is located in the toroidal hole of black conductive liquid and black conductive liquid and water white transparency liquid
Body is immiscible, and Intermediate substrate is located above black conductive liquid, and upper substrate is located at the top surface of clear hard cavity；When additional
For voltage when black conductive liquid and bottom ITO electrode layer, because electrowetting effect drives, black conductive liquid can be to centre bit
Put and spring up, due to driving for surface energy of liquid, black conductive liquid can form a toroidal, i.e. liquid diaphragm clear aperature
In contraction state；When applied voltage is in black conductive liquid and middle part ITO electrode layer, also due to electrowetting effect drives,
Black conductive liquid can be gushed out from the aperture of Intermediate substrate, now, black conductive liquid can be detached from infrabasal plate, caused
The circle diameter now formed expands, i.e., liquid diaphragm clear aperature increases.
Further, the long d of clear hard cavity4>=10mm and d4≤ 12mm, wide d5=d4, high d6>=8mm and d6≤
10mm；Intermediate substrate center thang-kng bore dia d7>=5mm and d7≤ 6mm, periphery hole diameter d8>=1mm and d8≤ 2mm, thickness d9
>=2mm and d9≤3mm；Ring washer outside diameter d10=d4, internal diameter d11=d7, thickness d12>=1mm and d12≤2mm；It is described colourless
Prescribed liquid is identical with black conductive fluid density.
Beneficial effects of the present invention are：The present invention is encoded luxuriant and rich with fragrance using SLM and liquid lens composition zoom modules on SLM
Alunite ear lens, can be on the premise of system element position not be changed by changing the focal length of Fresnel lens and liquid lens
Change the size of reproduction image, and the Advanced Diffraction picture in holographic zoom system, pancreatic system is eliminated using liquid diaphragm, it is high-quality so as to realize
The holographic zoom of amount is shown.Solves the quality of complicated, operating difficulties and reproduction image existing for existing holographic display system
The technical problem of difference.Compared with background technology, the present invention has simple in construction, easy to operate and reproduction image matter measured excellent
Point.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the zoom schematic diagram of the present invention；
Fig. 3 is the principle schematic of liquid diaphragm, wherein (a) is that applied voltage is electric in black conductive liquid and bottom ITO
The top view during layer of pole, (b) are top view of applied voltage when black conductive liquid and middle part ITO electrode layer, and (c) is additional
Side view of voltage when black conductive liquid and bottom ITO electrode layer, (d) is applied voltage in black conductive liquid and middle part
Side view during ITO electrode layer.
In figure：1- collimated light sources, 2- spatial light modulators, 3- liquid lens, 4- liquid diaphragm, 5- receiving screens, the upper bases of 6-
Plate, 7- clear hards cavity, 8- infrabasal plates, 9- Intermediate substrates, 10- black conductives liquid, 11- dielectric layers, 12- middle parts ITO electricity
Pole layer, 13- bottom ITO electrodes layer, 14- colourless transparent liquids, 15- ring washers.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of holographic zoom system, pancreatic system based on liquid device in the present embodiment, it include collimated light source 1,
Spatial light modulator (SLM) 2, liquid lens 3, liquid diaphragm 4 and receiving screen 5, the collimated light source 1 are located at spatial light modulator
In 2 input path, the liquid lens 3 is located at behind spatial light modulator 2, and the liquid diaphragm 4 is located at liquid lens 3
Behind, the receiving screen 5 is located at behind liquid diaphragm 4.
As shown in Fig. 2 the spatial light modulator 2 and liquid lens 3 form zoom modules, d1It is that light source is adjusted to spatial light
The distance between device processed, when light source is entirely collimated, d1Equal to infinite；d2Be between spatial light modulator and liquid lens away from
From d3It is the distance between liquid lens and receiving screen；In order to realize the function of zoom, luxuriant and rich with fragrance alunite is encoded in spatial light modulator
Ear lens, and its focal length is designated as fF, fLIt is the focal length of liquid lens；According to Nazarathy and Shamir algorithms by the zoom mould
The transmission function T of block is expressed as：
In formula：Q is the multiplying of secondary phase index, and Ff is the Fourier transformation to holographic facet, and V is that Fourier scales, λ
It is the wavelength of light wave；Obtained under the conditions of Fraunhofer diffraction：
Therefore formula (1) can use formula (3) to represent：
As M=λ [d2+d3-d2×d3(1/fL)] when, the COMPLEX AMPLITUDE function U (ξ, η) on receiving screen is expressed as：
Now the Fourier transformation of holographic facet is placed exactly in d3Place, and enlargement ratio is M；When the position of each element in system
When putting fixed, d1、d2And d3For constant, now by changing fFAnd fLTo adjust the size of reproduction image, so as to realize the effect of zoom
Fruit, fFAnd fLValue meet formula (2).
As shown in figure 3, the liquid diaphragm includes upper substrate 6, clear hard cavity 7, infrabasal plate 8, Intermediate substrate 9, black
Color conducting liquid 10, dielectric layer 11, middle part ITO electrode layer 12, bottom ITO electrode layer 13, colourless transparent liquid 14 and air ring
Circle 15；Wherein, middle part ITO electrode layer 12 is coated with Intermediate substrate 9, and the center of Intermediate substrate 9 is provided with light hole, the thang-kng
Hole is the maximum clear aperature of liquid diaphragm, and its periphery is evenly distributed with several apertures；Ring washer 15 and infrabasal plate 8 are close
Bond, bottom ITO electrode layer 13, bottom ITO electrode layer 13 and middle part ITO electricity are coated with the infrabasal plate 8 in air ring collar aperture
Dielectric layer 11 is provided with above pole layer 12；Ring washer 15 is located at the bottom in clear hard cavity 7 with infrabasal plate 8, and black is led
Electro-hydraulic body 10 is located above ring washer 15 and one toroidal hole of middle formation, colourless transparent liquid 14 are located at black and led
In the toroidal hole of electro-hydraulic body 10 and black conductive liquid 10 and colourless transparent liquid 14 are immiscible, and Intermediate substrate 9 is located at
Above black conductive liquid 10, upper substrate 6 is located at the top surface of clear hard cavity 7；When applied voltage is in black conductive liquid
10 with bottom ITO electrode layer 13 when, due to electrowetting effect drive, black conductive liquid 10 can be sprung up to center, due to
Surface energy of liquid drives, and black conductive liquid 10 can form a toroidal, i.e., liquid diaphragm clear aperature is in contraction-like
State；When applied voltage is in black conductive liquid 10 and middle part ITO electrode layer 12, also due to electrowetting effect drives, black
Conducting liquid 10 can be gushed out from the aperture of Intermediate substrate 9, now, black conductive liquid 10 can be detached from infrabasal plate 8, led
The circle diameter for causing now to be formed expands, i.e., liquid diaphragm clear aperature increases.
Further, the 7 long d of clear hard cavity4>=10mm and d4≤ 12mm, wide d5=d4, high d6>=8mm and d6≤
10mm；The center thang-kng bore dia d of Intermediate substrate 97>=5mm and d7≤ 6mm, periphery hole diameter d8>=1mm and d8≤ 2mm, thickness
d9>=2mm and d9≤3mm；The outside diameter d of ring washer 1510=d4, internal diameter d11=d7, thickness d12>=1mm and d12≤2mm；The nothing
Color transparency liquid 14 is identical with the density of black conductive liquid 10.
One embodiment of the present of invention is：Laser is the green light that wavelength is 532nm, and LCOS pel spacing is
8 microns, resolution ratio is 1920 × 1080, and liquid lens and LCOS distance are 20cm, after liquid diaphragm is located at solid lens
At 20cm, the distance of receiving screen and liquid diaphragm is 20cm.Black conductive liquid in liquid diaphragm is mixed for ink and salt solution
Close solution, the long d of clear hard cavity4=12mm, wide d5=d4, high d6=10mm.Intermediate substrate thickness d9=2mm, center thang-kng
Bore dia d7=6mm, circumferential distribution are the aperture of 6 same diameters, and diameter is d8=1mm.Ring washer outside diameter d10=
12mm, internal diameter d11=5mm, thickness d12=1mm.It is added when applied voltage is in bottom ITO electrode layer and black conductive liquid
Voltage is 65V, and the downward substrate center of black conductive liquid springs up, and is punctured into 3.2mm, i.e., now the aperture of the diaphragm is 3.2mm；When outer
When power-up is pressed on middle part ITO electrode layer and black conductive liquid, institute's making alive is 65V, and black conductive liquid is driven due to electrowetting
Gush out in the dynamic therefrom aperture of laminar substrate, the downward substrate peripheral of black conductive liquid is sprung up, and is expanded for 4.8mm, i.e. now diaphragm
Aperture is 4.8mm.Parameter is taken in formula (2), can be obtained：
Therefore, on the premise of position is not changed, the focal length and Fresnel lens of liquid lens are adjusted by above-mentioned formula
Focal length, the scaling of reproduction image can be realized on the premise of system element position is not changed.Advanced Diffraction picture passes through liquid light
It can be eliminated after door screen., can be by adjusting the size of liquid diaphragm, so as to eliminate Advanced Diffraction when the size of reproduction image changes
Picture.
Claims (4)
- A kind of 1. holographic zoom system, pancreatic system based on liquid device, it is characterised in that：Including collimated light source, spatial light modulator, liquid Body lens, liquid diaphragm and receiving screen, the collimated light source are located in the input path of spatial light modulator, the liquid lens It is located at behind spatial light modulator, the liquid diaphragm is located at behind liquid lens, and the receiving screen is located at liquid diaphragm Behind.
- A kind of 2. holographic zoom system, pancreatic system based on liquid device according to claim 1, it is characterised in that：The spatial light Modulator and liquid lens composition zoom modules, d1The distance between be light source to spatial light modulator, when light source is entirely collimated When, d1Equal to infinite；d2It is the distance between spatial light modulator and liquid lens, d3It is between liquid lens and receiving screen Distance；In order to realize the function of zoom, Fresnel lens is encoded in spatial light modulator, and its focal length is designated as fF, fLIt is liquid The focal length of body lens；The transmission function T of the zoom modules is expressed as according to Nazarathy and Shamir algorithms：<mrow> <mtable> <mtr> <mtd> <mrow> <mi>T</mi> <mo>=</mo> <mi>Q</mi> <mrow> <mo>&lsqb;</mo> <mrow> <mfrac> <mn>1</mn> <mrow> <msub> <mi>d</mi> <mn>3</mn> </msub> <mo>-</mo> <msub> <mi>f</mi> <mi>L</mi> </msub> </mrow> </mfrac> <mo>+</mo> <msup> <mrow> <mo>(</mo> <mfrac> <msub> <mi>f</mi> <mi>L</mi> </msub> <mrow> <msub> <mi>f</mi> <mi>L</mi> </msub> <mo>-</mo> <msub> <mi>d</mi> <mn>3</mn> </msub> </mrow> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>&CenterDot;</mo> <mfrac> <mn>1</mn> <mrow> <msub> <mi>d</mi> <mn>2</mn> </msub> <mo>+</mo> <mfrac> <mrow> <msub> <mi>d</mi> <mn>3</mn> </msub> <mo>&CenterDot;</mo> <msub> <mi>f</mi> <mi>L</mi> </msub> </mrow> <mrow> <msub> <mi>f</mi> <mi>L</mi> </msub> <mo>-</mo> <msub> <mi>d</mi> <mn>3</mn> </msub> </mrow> </mfrac> </mrow> </mfrac> </mrow> <mo>&rsqb;</mo> </mrow> <mo>&CenterDot;</mo> <mi>V</mi> <mrow> <mo>&lsqb;</mo> <mrow> <mfrac> <msub> <mi>f</mi> <mi>L</mi> </msub> <mrow> <msub> <mi>f</mi> <mi>L</mi> </msub> <mo>-</mo> <msub> <mi>d</mi> <mn>3</mn> </msub> </mrow> </mfrac> <mo>&CenterDot;</mo> <mfrac> <mn>1</mn> <mrow> <mi>&lambda;</mi> <mrow> <mo>(</mo> <mrow> <msub> <mi>d</mi> <mn>2</mn> </msub> <mo>+</mo> <mfrac> <mrow> <msub> <mi>d</mi> <mn>3</mn> </msub> <mo>&CenterDot;</mo> <msub> <mi>f</mi> <mi>L</mi> </msub> </mrow> <mrow> <msub> <mi>f</mi> <mi>L</mi> </msub> <mo>-</mo> <msub> <mi>d</mi> <mn>3</mn> </msub> </mrow> </mfrac> </mrow> <mo>)</mo> </mrow> </mrow> </mfrac> </mrow> <mo>&rsqb;</mo> </mrow> <mo>&CenterDot;</mo> <mi>F</mi> <mi>f</mi> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mo>&CenterDot;</mo> <mi>Q</mi> <mrow> <mo>&lsqb;</mo> <mrow> <mfrac> <mn>1</mn> <mrow> <msub> <mi>d</mi> <mn>2</mn> </msub> <mo>+</mo> <mfrac> <mrow> <msub> <mi>d</mi> <mn>3</mn> </msub> <mo>&CenterDot;</mo> <msub> <mi>f</mi> <mi>L</mi> </msub> </mrow> <mrow> <msub> <mi>f</mi> <mi>L</mi> </msub> <mo>-</mo> <msub> <mi>d</mi> <mn>3</mn> </msub> </mrow> </mfrac> </mrow> </mfrac> <mo>-</mo> <mfrac> <mn>1</mn> <msub> <mi>f</mi> <mi>F</mi> </msub> </mfrac> <mo>+</mo> <mfrac> <mn>1</mn> <msub> <mi>d</mi> <mn>1</mn> </msub> </mfrac> </mrow> <mo>&rsqb;</mo> </mrow> </mrow> </mtd> </mtr> </mtable> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>In formula：Q is the multiplying of secondary phase index, and Ff is the Fourier transformation to holographic facet, and V is Fourier's scaling, and λ is light The wavelength of ripple；Obtained under the conditions of Fraunhofer diffraction：Therefore formula (1) can use formula (3) to represent：As M=λ [d2+d3-d2×d3(1/fL)] when, the COMPLEX AMPLITUDE function U (ξ, η) on receiving screen is expressed as：<mrow> <mi>U</mi> <mrow> <mo>(</mo> <mi>&xi;</mi> <mo>,</mo> <mi>&eta;</mi> <mo>)</mo> </mrow> <mo>=</mo> <msqrt> <mfrac> <mn>1</mn> <mi>M</mi> </mfrac> </msqrt> <mo>&Integral;</mo> <mo>&Integral;</mo> <mi>f</mi> <mrow> <mo>(</mo> <mi>x</mi> <mo>,</mo> <mi>y</mi> <mo>)</mo> </mrow> <mi>exp</mi> <mo>&lsqb;</mo> <mo>-</mo> <mi>j</mi> <mn>2</mn> <mi>&pi;</mi> <mrow> <mo>(</mo> <mfrac> <mi>&xi;</mi> <mi>M</mi> </mfrac> <mi>x</mi> <mo>+</mo> <mfrac> <mi>&eta;</mi> <mi>M</mi> </mfrac> <mi>y</mi> <mo>)</mo> </mrow> <mo>&rsqb;</mo> <mi>d</mi> <mi>x</mi> <mi>d</mi> <mi>y</mi> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>4</mn> <mo>)</mo> </mrow> </mrow>Now the Fourier transformation of holographic facet is placed exactly in d3Place, and enlargement ratio is M；When the position of each element in system is consolidated Regularly, d1、d2And d3For constant, now by changing fFAnd fLTo adjust the size of reproduction image, so as to realize the effect of zoom.
- A kind of 3. holographic zoom system, pancreatic system based on liquid device according to claim 1, it is characterised in that：The liquid light Door screen include upper substrate, clear hard cavity, infrabasal plate, Intermediate substrate, black conductive liquid, dielectric layer, middle part ITO electrode layer, Bottom ITO electrode layer, colourless transparent liquid and ring washer；Wherein, ITO electrode layer in the middle part of being coated with Intermediate substrate, and in Between substrate center be provided with light hole, the light hole is the maximum clear aperature of liquid diaphragm, and its periphery is evenly distributed with some Individual aperture；Ring washer and infrabasal plate close adhesion, bottom ITO electrode layer, bottom are coated with the infrabasal plate in air ring collar aperture Dielectric layer is provided with above portion's ITO electrode layer and middle part ITO electrode layer；Ring washer is located in clear hard cavity with infrabasal plate Bottom, black conductive liquid be located above ring washer and it is middle form a toroidal hole, colourless transparent liquid is set In the toroidal hole of black conductive liquid and black conductive liquid is immiscible with colourless transparent liquid, and Intermediate substrate is located at Above black conductive liquid, upper substrate is located at the top surface of clear hard cavity；When applied voltage is in black conductive liquid and bottom During portion's ITO electrode layer, because electrowetting effect drives, black conductive liquid can be sprung up to center, due to surface energy of liquid Drive, black conductive liquid can form a toroidal, i.e. liquid diaphragm clear aperature is in contraction state；Work as applied voltage When black conductive liquid and middle part ITO electrode layer, also due to electrowetting effect drives, black conductive liquid can be from intermediate base Gush out in the aperture of plate, now, black conductive liquid can be detached from infrabasal plate, the circle diameter for causing now to be formed expands Greatly, i.e., liquid diaphragm clear aperature increases.
- A kind of 4. holographic zoom system, pancreatic system based on liquid device according to claim 3, it is characterised in that：It is described transparent hard The long d of matter cavity4>=10mm and d4≤ 12mm, wide d5=d4, high d6>=8mm and d6≤10mm；Intermediate substrate center thang-kng bore dia d7>=5mm and d7≤ 6mm, periphery hole diameter d8>=1mm and d8≤ 2mm, thickness d9>=2mm and d9≤3mm；Ring washer external diameter d10=d4, internal diameter d11=d7, thickness d12>=1mm and d12≤2mm；Colourless transparent liquid and black conductive the fluid density phase Together.
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| CN201710890526.5A CN107656431B (en) | 2017-09-27 | 2017-09-27 | Holographic zoom system based on liquid device |
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|---|---|---|---|
| CN201710890526.5A CN107656431B (en) | 2017-09-27 | 2017-09-27 | Holographic zoom system based on liquid device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508622A (en) * | 2018-03-12 | 2018-09-07 | 广东欧珀移动通信有限公司 | Laser projection module, depth camera and electronic device |
| CN109946942A (en) * | 2019-03-29 | 2019-06-28 | 北京航空航天大学 | A kind of high quality Color Full holography display system of strength matching |
| CN110058507A (en) * | 2019-03-29 | 2019-07-26 | 北京航空航天大学 | A kind of adjustable high-quality holographic display system of light intensity |
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| CN110058506A (en) * | 2019-03-29 | 2019-07-26 | 北京航空航天大学 | A kind of calculating holographic display system based on full-service fluid lens |
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| CN110262045A (en) * | 2019-06-18 | 2019-09-20 | 天津大学 | A kind of quick method for continuously adjusting of salt free ligands two-dimension optical lattice period |
| CN111435191A (en) * | 2019-01-14 | 2020-07-21 | 杭州海康威视数字技术股份有限公司 | Zoom lens, camera and monitoring equipment |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508622A (en) * | 2018-03-12 | 2018-09-07 | 广东欧珀移动通信有限公司 | Laser projection module, depth camera and electronic device |
| CN111435191A (en) * | 2019-01-14 | 2020-07-21 | 杭州海康威视数字技术股份有限公司 | Zoom lens, camera and monitoring equipment |
| CN109946942A (en) * | 2019-03-29 | 2019-06-28 | 北京航空航天大学 | A kind of high quality Color Full holography display system of strength matching |
| CN110058507A (en) * | 2019-03-29 | 2019-07-26 | 北京航空航天大学 | A kind of adjustable high-quality holographic display system of light intensity |
| CN110058506A (en) * | 2019-03-29 | 2019-07-26 | 北京航空航天大学 | A kind of calculating holographic display system based on full-service fluid lens |
| CN109946942B (en) * | 2019-03-29 | 2020-04-10 | 北京航空航天大学 | High-quality full-color holographic display system with matched intensity |
| CN110058333A (en) * | 2019-05-07 | 2019-07-26 | 北京航空航天大学 | A kind of big visual angle holographic display system based on high focal power liquid lens |
| CN110262044A (en) * | 2019-06-18 | 2019-09-20 | 天津大学 | Salt free ligands two-dimension optical lattice period regulating system based on zoom lens |
| CN110262045A (en) * | 2019-06-18 | 2019-09-20 | 天津大学 | A kind of quick method for continuously adjusting of salt free ligands two-dimension optical lattice period |
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