CN107422487A - Three- dimensional panoramic show device and method - Google Patents
Three- dimensional panoramic show device and method Download PDFInfo
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- CN107422487A CN107422487A CN201710431114.5A CN201710431114A CN107422487A CN 107422487 A CN107422487 A CN 107422487A CN 201710431114 A CN201710431114 A CN 201710431114A CN 107422487 A CN107422487 A CN 107422487A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 91
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 230000010354 integration Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 abstract description 11
- 208000003464 asthenopia Diseases 0.000 abstract description 9
- 208000012886 Vertigo Diseases 0.000 abstract description 8
- 210000004027 cell Anatomy 0.000 description 13
- 239000003205 fragrance Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 229910052934 alunite Inorganic materials 0.000 description 4
- 239000010424 alunite Substances 0.000 description 4
- 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 4
- 230000008859 change Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000001093 holography Methods 0.000 description 2
- 230000004941 influx Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 206010052143 Ocular discomfort Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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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
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/10—Processes or apparatus for producing holograms using modulated reference beam
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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
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides three- dimensional panoramic show device and method, including：The liquid crystal panel of light source cell, light path integral unit and pre-set dimension；Light source cell is used to produce illuminating bundle；Light path integral unit is used to integrate the illuminating bundle；Hologram is loaded with liquid crystal panel, for being modulated to illuminating bundle, to show hologram；Wherein, the optical axis of light path integral unit and the perpendicular bisector of liquid crystal panel surface are conllinear.Three- dimensional panoramic show device and method provided by the invention, is modulated by the liquid crystal panel of pre-set dimension to incident beam, and to show hologram, caused hologram is adapted to the visual demand of human eye custom, is effectively reduced visual fatigue and spinning sensation.
Description
Technical field
Three- dimensional panoramic show field of the present invention, more particularly, to three- dimensional panoramic show device and method.
Background technology
At present, holography because it reproduce the image of true three-dimension object and by extensive concern, it is dynamic for three-dimensional
The calculating holographic technique that state is shown is that existing two dimension display and dimension display technologies are greatly improved.
Traditional dimension display technologies are mainly the hologram (Computer- for generating the computer calculated
Generated Holograms, CGH) it is synchronized in spatial light modulator (Spatial Light Modulator, SLM), lead to
The amplitude and phase of SLM modulation incident lights are crossed, the three-dimensional scenic comprising depth information is reconstructed using the interference of light.Traditional three
Dimension Display Technique (such as 3D films) is also easy to produce dizziness because the conflict of eyes focal length and influx may cause visual discomfort and fatigue
Sense.And three- dimensional panoramic show technology can effectively overcome the conflict brought by eyes focal length and influx and rebuild more three-dimensional scenics
Depth information (such as motion parallax), be advantageous to lift perception and comfort level.
For three- dimensional panoramic show technology, SLM liquid crystal panel size is generally 2cm × 1cm used in prior art.
Because the overall dimensions of SLM liquid crystal panel are smaller, so as to cause the 3-D view size that accordingly shows limited, and then can not expire
The visual demand of sufficient human eye custom, and can give people to bring bad viewing experience.At the same time, due to the graphics accordingly shown
Picture size is limited, does not meet the visual custom of people, so as to be unfavorable for the commercialization of dimension display technologies and the marketization.
The content of the invention
To overcome above mentioned problem or solving the above problems at least in part, the invention provides three- dimensional panoramic show device
And method.
On the one hand, the invention provides three- dimensional panoramic show device, including：Light source cell, light path integral unit and default
The liquid crystal panel of size；The light source cell is used to produce illuminating bundle；The light path integral unit is used to integrate the illumination
Light beam；Hologram is loaded with the liquid crystal panel, for being modulated to the light beam after integration, to show hologram；Its
In, the optical axis of the light path integral unit is conllinear with the perpendicular bisector of the liquid crystal panel surface.
Preferably, the light path integral unit includes：Not less than the Fresnel Lenses of the pre-set dimension.
Preferably, the Fresnel Lenses specifically includes：First Fresnel Lenses；The light source cell is arranged on described
In the object focus of one Fresnel Lenses or the distance of the light source cell and first Fresnel Lenses is more than one times of Jiao
Away from first Fresnel Lenses and the liquid crystal panel be arranged in parallel successively along optical propagation direction.
Preferably, three- dimensional panoramic show device also includes：Receiving screen or virtual image viewing window；The receiving screen is arranged on institute
In the image space focal plane for stating the first Fresnel Lenses, for showing the hologram；The virtual image viewing window is arranged on institute
Near the rear focus for stating the first Fresnel Lenses, the position of the virtual image viewing window is the viewing position of the hologram
Put.
Preferably, the light path integral unit includes：First Fresnel Lenses and the second Fresnel Lenses；The light source list
Member is arranged in the object focus of first Fresnel Lenses, first Fresnel Lenses, the liquid crystal panel and described
Second Fresnel Lenses be arranged in parallel successively along optical propagation direction.
Preferably, the three- dimensional panoramic show device also includes：Receiving screen or virtual image viewing window；The receiving screen is set
In the image space focal plane of second Fresnel Lenses, for showing the hologram；The virtual image viewing window is set
Near the rear focus of second Fresnel Lenses, the position of the virtual image viewing window is the viewing of the hologram
Position.
Preferably, the three- dimensional panoramic show device also includes：Storage device, the storage device and the liquid crystal panel
Electrical connection, the liquid crystal panel is loaded onto for storing holographic figure, and to set frame frequency by the hologram.
On the other hand, present invention also offers three- dimensional panoramic show method, including：S1, utilize illuminating bundle illumination path
Integral unit, the light path integral unit is set to integrate the illuminating bundle；S2, using on the liquid crystal panel of pre-set dimension
The hologram of loading is modulated to the light beam after integration, after liquid crystal panel modulation, shows hologram.
Preferably, the light path integral unit specifically includes：Not less than the first Fresnel Lenses of the pre-set dimension；Phase
Ying Di, the S1 are specifically included：The illuminating bundle from the object focus of first Fresnel Lenses or with it is described first luxuriant and rich with fragrance
First Fresnel Lenses is irradiated in the position that the distance of Nie Er lens is more than one times of focal length, the illuminating bundle is carried out whole
Close；Correspondingly, S2 is specifically included：The light beam after integration is modulated using the hologram loaded on liquid crystal panel, through described
After liquid crystal panel modulation, the hologram is shown.
Preferably, the light path integral unit specifically includes：Not less than the pre-set dimension the first Fresnel Lenses and
Second Fresnel Lenses；Correspondingly, the S1 is specifically included：The object space of the illuminating bundle from first Fresnel Lenses is burnt
Point the first Fresnel Lenses of irradiation, is changed into collimated light beam by the illuminating bundle；Correspondingly, S2 is specifically included：Utilize liquid crystal surface
The hologram loaded on plate is modulated to the collimated light beam, after liquid crystal panel modulation, through second Fresnel
The collimated light beam is changed into convergent beam by lens, shows the hologram.
Three- dimensional panoramic show device and method provided by the invention, is entered by the liquid crystal panel of pre-set dimension to incident beam
Row modulation, to show hologram, caused hologram is adapted to the visual demand of human eye custom, be effectively reduced visual fatigue with
Spinning sensation.
Brief description of the drawings
Fig. 1 is the three- dimensional panoramic show structure drawing of device that the embodiment of the present invention 1 provides；
Fig. 2 is the three- dimensional panoramic show structure drawing of device that the embodiment of the present invention 2 provides；
Fig. 3 is the three- dimensional panoramic show structure drawing of device that the embodiment of the present invention 3 provides；
Fig. 4 is the three- dimensional panoramic show structure drawing of device that the embodiment of the present invention 4 provides；
Fig. 5 is the three- dimensional panoramic show structure drawing of device that the embodiment of the present invention 5 provides；
Fig. 6 is the three- dimensional panoramic show structure drawing of device that the embodiment of the present invention 6 provides；
Fig. 7 is the structure chart of liquid crystal panel in three- dimensional panoramic show device；
Fig. 8 is the three- dimensional panoramic show method flow diagram that the embodiment of the present invention 8 provides.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
The CGH calculated is synchronized in SLM by traditional dimension display technologies, by SLM modulate incident light amplitude and
Phase, the three-dimensional scenic comprising depth information is reconstructed using the interference of light.Three- dimensional panoramic show device in the present invention be by
The hologram calculated is loaded on liquid crystal panel, by entering the modulation of row amplitude and phase to incident light, shows holographic shadow
Picture.Because the algorithm that computed hologram uses is different, the structure and construction of three- dimensional panoramic show device provided by the invention also have
Institute is different.
Hologram is calculated with iterative algorithm and point source algorithm in the present invention, iterative algorithm is to carry out an original image
Successive ignition Fourier transformation and inverse Fourier transform, finally give amplitude hologram or phase hologram；Point source algorithm be by
One original image is regarded as to be made up of many individual spot lights, is superimposed in image plane and is formed amplitude hologram or phase hologram.Below
It is described in detail respectively by different embodiments.
Embodiments of the invention 1 provide a kind of three- dimensional panoramic show device, including：Light source cell, light path integral unit
With the liquid crystal panel of pre-set dimension；Light source cell is used to produce illuminating bundle；Light path integral unit is used for integrating illumination light beam；Liquid
Hologram is loaded with crystal panel, for being modulated to the light beam after integration, to show hologram；Wherein, light path is integrated
The optical axis of unit is conllinear with the perpendicular bisector of the liquid crystal panel surface.Here, hologram is to be carried on liquid crystal panel
Hologram imaging.
SLM due to being applied to three- dimensional panoramic show in the prior art is 2cm × 1cm small size, can not meet people
The visual demand of eye custom, the liquid crystal panel of pre-set dimension is used in the present embodiment, such as pre-set dimension is set greater than into 2cm
×1cm.Pre-set dimension can be adjusted as needed, it can be common that the size of computer screen or LCD TV screen.
The concrete structure of three- dimensional panoramic show device is as shown in figure 1, light source cell 1 specifically includes LASER Light Source 11, space
Wave filter 12 and beam expanding lens 13；Spatial filter 12 is used to filter out the veiling glare that LASER Light Source 11 is sent；Beam expanding lens 13 is used to expand
The spot diameter for the light that LASER Light Source 11 is sent.The light that LASER Light Source 11 is sent through spatial filter 12 obtain it is uniform, be free of
The laser beam of veiling glare, laser beam become the illuminating bundle of large spot diameter after beam expanding lens 13 expands, can expand light source cell
Illuminated area.Attenuator is also provided with before LASER Light Source 11, for laser intensity control to be adapted into the model of eye-observation
In enclosing, prevent from stabbing human eye.
Light path integral unit specifically may include：Not less than the Fresnel Lenses of pre-set dimension.Fresnel Lenses is more frivolous,
Shapes and sizes can be made according to demand, and cost of manufacture is relatively low.Meanwhile the effect of light path is integrated using Fresnel Lenses
It is better than in general lens.Fresnel Lenses, which is applied in the present invention, can greatly reduce the cost of three- dimensional panoramic show device.
The light path integral unit used in the present embodiment specifically includes：First Fresnel Lenses 2 and second of pre-set dimension
Fresnel Lenses 4, but the function that light path is integrated can be equally realized for the Fresnel Lenses more than pre-set dimension；Light source cell
1 is arranged in the object focus of the first Fresnel Lenses 2, the first Fresnel Lenses 2, the Fresnel Lenses 4 of liquid crystal panel 3 and second
It is be arranged in parallel successively along optical propagation direction, optical axis and the liquid crystal panel 3 of the first Fresnel Lenses 2 and the second Fresnel Lenses 4
Perpendicular bisector is conllinear.To control the size of three- dimensional panoramic show device, the first Fresnel Lenses 2, liquid crystal panel 3 and second are luxuriant and rich with fragrance
The distance between Nie Er lens 4 are as far as possible small.
Here, object focus refers to the direction of propagation along light, the focus passed through for the first time, correspondingly, passes through for the second time
Focus is rear focus.Focal plane corresponding with object focus is object space focal plane, and focal plane corresponding with rear focus is picture
Square focal plane.
The illuminating bundle that light source cell 1 is sent is radiated on the first Fresnel Lenses 2, is carried out through the first Fresnel Lenses 2
Fourier transformation, time domain is converted into frequency domain, while illuminating bundle is changed into collimated light beam.The holography loaded on liquid crystal panel 3
Figure is modulated on frequency domain to the amplitude and phase of collimated light beam, and the collimated light beam after modulation irradiates the second Fresnel Lenses 4,
Second of Fourier transformation is carried out, frequency domain is converted into time domain, while the collimated light beam after modulation is assembled, by liquid crystal panel 3
The hologram of upper loading is shown.In the present embodiment, the hologram loaded on liquid crystal panel 3 is counted using iterative algorithm
Calculate.
The method that hologram is shown in the present embodiment is to would indicate that the hologram come is projected to receiving screen 6.Connect
The positions that specifically set of screen 6 are received to be limited by three- dimensional panoramic show apparatus system length, also by receiving screen 6 hologram it is clear
The limitation of clear degree, it can need to be adjusted according to user.The size of hologram can be by receiving screen 6 on receiving screen 6
The distance limitation of two Fresnel Lenses 4.So to consider the system length of three- dimensional panoramic show device, holographic on receiving screen
The readability of image and the size of hologram, choose suitable position and receiving screen 6 is set.In the present embodiment, it will receive
Screen 6 is arranged in the image space focal plane of the second Fresnel Lenses 4, and obtained hologram is real image formed by hologram.Human eye
By watching receiving screen 6 it can be seen that 3D hologram image, the size for the hologram watched and the size one of liquid crystal panel 3
Cause or be more or less the same.
In the present embodiment, the collimated light beam of incidence is modulated by the liquid crystal panel of pre-set dimension, through the second luxuriant and rich with fragrance alunite
You project hologram to receiving screen lens, 3D hologram image is shown on receiving screen.It is luxuriant and rich with fragrance that receiving screen is arranged on second
In the image space focal plane of Nie Er lens, make the hologram on receiving screen clear enough and sufficiently large, to be adapted to human eye custom
Visual demand, it is effectively reduced visual fatigue and spinning sensation.Meanwhile two Fresnel used in the display device of the present embodiment are saturating
Mirror has area big and frivolous characteristic, can effectively reduce the volume weight of display device, be easy to integrate.
As shown in Fig. 2 embodiments of the invention 2 provide a kind of three- dimensional panoramic show device, the difference with embodiment 1 is only
It is, is not provided with receiving screen, but set the virtual image to watch window 7, the position of virtual image viewing window 7 is the hologram
Viewing location, it is used to help the viewing location that people determine hologram.The position of virtual image viewing window 7 is arranged on the second luxuriant and rich with fragrance alunite
The distance that the virtual image viewing window 7 and the second Fresnel Lenses 4 are shown near the image space focal plane 8 of your lens 4, in Fig. 2 is small
In its focal length, but the position of virtual image viewing window 7 is not limited to this in the present invention, can also be arranged on and the second Fresnel Lenses
4 distance is more than the position of its focal length.Below exemplified by being shown in Fig. 2, human eye is at virtual image viewing window 7 against the biography of light
It is hologram institute into the virtual image to broadcast the hologram 9 watched in direction.Virtual image viewing window 7 is specific with the second Fresnel Lenses 4
Distance can be configured as needed, consider the size from the hologram 9 watched of virtual image viewing window 7, clear
The system length of degree and three- dimensional panoramic show device, it is sufficiently large and clear enough to ensure to watch in virtual image viewing window 7
Clear hologram 9.The size of virtual image viewing window 7 changes also with the change of the distance with the second Fresnel Lenses 4.
Virtual image viewing window 7 is generally sized to 2cm, is easy to human eye to watch.
In the present embodiment, the collimated light beam of incidence is modulated by the liquid crystal panel of pre-set dimension, watched in the virtual image
The window's position watches hologram, the appropriate position for adjusting virtual image viewing window, can make the size and liquid of hologram seen
The size of crystal panel is consistent or is more or less the same, and to meet the visual demand of human eye custom, is effectively reduced visual fatigue and spinning sensation.
, can be effective meanwhile two Fresnel lenses used in the display device of the present embodiment have area big and frivolous characteristic
Reduce the volume weight of display device, be easy to integrate.
As shown in figure 3, embodiments of the invention 3 provide a kind of three- dimensional panoramic show device, the difference with embodiment 1 is only
It is, the hologram being carried on liquid crystal panel 3 is calculated using point source algorithm, corresponding, in three- dimensional panoramic show device
Eliminate the second Fresnel Lenses.First Fresnel Lenses 2 and liquid crystal panel 3 be arranged in parallel successively along optical propagation direction, and first
The size of Fresnel Lenses 2 is not less than pre-set dimension.
Because the illuminating bundle that light source cell 1 is sent becomes collimated light beam after the first Fresnel Lenses 2, liquid crystal is radiated at
On panel 3, the hologram now loaded on liquid crystal panel 3 is modulated to collimated light beam.Each liquid crystal on liquid crystal panel 3
Unit all can produce modulating action to collimated light beam, and can be equivalent to spot light, send out illuminating bundle respectively, be projected to and connect
Receive on screen 6 to show hologram.
The method that hologram is shown in the present embodiment is to would indicate that the hologram come is projected to receiving screen 6.Connect
The positions that specifically set of screen 6 are received to be limited by three- dimensional panoramic show apparatus system length, also by receiving screen 6 hologram it is clear
The limitation of clear degree, it can need to be adjusted according to user.The size of hologram can be by receiving screen 6 on receiving screen 6
The distance limitation of one Fresnel Lenses 2.So to consider the system length of three- dimensional panoramic show device, holographic on receiving screen
The readability of image and the size of hologram, choose suitable position and receiving screen 6 is set.In the present embodiment, it will receive
Screen 6 is arranged in the image space focal plane of the first Fresnel Lenses, and obtained hologram is real image formed by hologram.Human eye leads to
Viewing receiving screen 6 is crossed it can be seen that 3D hologram image, the size for the hologram watched are consistent with the size of liquid crystal panel 3
Or it is more or less the same.
In the present embodiment, the collimated light beam of incidence is modulated by the liquid crystal panel of pre-set dimension, it is luxuriant and rich with fragrance by first
Nie Er lens project hologram to receiving screen, 3D hologram image is shown on receiving screen.Receiving screen is arranged on first
In the image space focal plane of Fresnel Lenses, make the hologram on receiving screen clear enough and sufficiently large, to be adapted to human eye to be accustomed to
Visual demand, be effectively reduced visual fatigue and spinning sensation.Meanwhile two Fresnel used in the display device of the present embodiment
Lens have area big and frivolous characteristic, can effectively reduce the volume weight of display device, be easy to integrate.
As shown in figure 4, embodiments of the invention 4 provide a kind of three- dimensional panoramic show device, the difference with embodiment 3 is only
It is, is not provided with receiving screen, but set the virtual image to watch window 7, the position of virtual image viewing window 7 is the hologram
Viewing location, it is used to help the viewing location that people determine hologram.The position of virtual image viewing window 7 is arranged on the first luxuriant and rich with fragrance alunite
The distance that the virtual image viewing window 7 and the first Fresnel Lenses 2 are shown near the image space focal plane 10 of your lens 2, in Fig. 2 is small
In its focal length, but the position of virtual image viewing window 7 is not limited to this in the present invention, can also be arranged on and the second Fresnel Lenses
4 distance is more than the position of its focal length.Below exemplified by being shown in Fig. 2, human eye is at virtual image viewing window 7 against the biography of light
It is hologram institute into the virtual image to broadcast the hologram 11 watched in direction.The position of virtual image viewing window 7 can be set as needed
Put, the size of virtual image viewing window 7 changes also with the change of the distance with the first Fresnel Lenses 2.Generally by the virtual image
Viewing window 7 is sized to 2cm, is easy to human eye to watch.
In the present embodiment, the collimated light beam of incidence is modulated by the liquid crystal panel of pre-set dimension, watched in the virtual image
The window's position watches hologram, the appropriate position for adjusting virtual image viewing window, can make the size and liquid of hologram seen
The size of crystal panel is consistent or is more or less the same, and meets the visual demand of human eye custom, is effectively reduced visual fatigue and spinning sensation.Together
When, two Fresnel lenses used in the display device of the present embodiment have area big and frivolous characteristic, can effectively subtract
The volume weight of small display device, it is easy to integrate.
As shown in figure 5, embodiments of the invention 5 provide a kind of three- dimensional panoramic show device, the difference with embodiment 3 is only
It is, light source cell 1 is arranged on beyond one times of focal length of the first Fresnel Lenses 2, i.e., the object space in the first Fresnel Lenses
Outside focus, in the outside of the object space focal plane 12 of the first Fresnel Lenses.
Become convergent beam after the first Fresnel Lenses 2 by the illuminating bundle that light source cell 1 is sent, be radiated at liquid crystal list
In member 3, it is radiated on liquid crystal panel 3, the hologram now loaded on liquid crystal panel 3 is modulated to convergent beam.Liquid crystal surface
Each liquid crystal cells on plate 3 can produce modulating action to convergent beam, and can be equivalent to spot light, send out respectively
Light beam is spread, is projected on receiving screen 6 to show hologram.
In the present embodiment, the convergent beam of incidence is modulated by the liquid crystal panel of pre-set dimension, it is luxuriant and rich with fragrance by first
Nie Er lens project hologram to receiving screen, 3D hologram image is shown on receiving screen, make the holographic shadow on receiving screen
As clear enough and sufficiently large, to be adapted to the visual demand of human eye custom, visual fatigue and spinning sensation are effectively reduced.The present embodiment
Display device in two Fresnel lenses using have area big and frivolous characteristic, display device can be effectively reduced
Volume weight, it is easy to integrate.Meanwhile using convergent beam irradiating liquid crystal panel 3, it can further reduce three- dimensional panoramic show device
System length, reduce size.
As shown in fig. 6, embodiments of the invention 6 provide a kind of three- dimensional panoramic show device, the difference with embodiment 5 is only
It is, is not provided with receiving screen, but set the virtual image to watch window 7, the position of virtual image viewing window 7 is the hologram
Viewing location, it is used to help the viewing location that people determine hologram.The position of virtual image viewing window 7 is arranged on the first luxuriant and rich with fragrance alunite
The distance that the virtual image viewing window 7 and the first Fresnel Lenses 2 are shown near the image space focal plane 10 of your lens 2, in Fig. 2 is small
In its focal length, but the position of virtual image viewing window 7 is not limited to this in the present invention, can also be arranged on and the second Fresnel Lenses
4 distance is more than the position of its focal length.Below exemplified by being shown in Fig. 2, human eye is at virtual image viewing window 7 against the biography of light
It is hologram institute into the virtual image to broadcast the hologram 13 watched in direction.The position of virtual image viewing window 7 can be set as needed
Put, the size of virtual image viewing window 7 changes also with the change of the distance with the first Fresnel Lenses 2.Generally by the virtual image
Viewing window 7 is sized to 2cm, is easy to human eye to watch.
In the present embodiment, the convergent beam of incidence is modulated by the liquid crystal panel of pre-set dimension, watched in the virtual image
The window's position watches hologram, the appropriate position for adjusting virtual image viewing window, can make the size and liquid of hologram seen
The size of crystal panel is consistent or is more or less the same, and meets the visual demand of human eye custom, is effectively reduced visual fatigue and spinning sensation.This
Two Fresnel lenses used in the display device of embodiment have area big and frivolous characteristic, can effectively reduce display
The volume weight of device, it is easy to integrate.Meanwhile using convergent beam irradiating liquid crystal panel 3, it can further reduce 3D hologram and show
The system length of showing device, reduce size.
In the various embodiments described above, the structure for the liquid crystal panel 3 used in three- dimensional panoramic show device is as shown in fig. 7, liquid
Crystal panel 3 includes：Polaroid 31, polaroid 33, and the liquid crystal layer 32 between polaroid 31 and polaroid 33.By hologram
It is carried on liquid crystal panel 3, really hologram is carried on the liquid crystal layer 32 of liquid crystal panel 3.Display provided by the invention
The liquid crystal panel 3 of device application can be not only the liquid crystal panel for including two polarizers, can also be not comprising polarizer
Liquid crystal panel, that is, comprise only the liquid crystal panel of liquid crystal layer.As long as ensure that hologram is carried on liquid crystal layer.
In the present embodiment, it is not limited to use the liquid crystal panel comprising polarizer, the liquid crystal of only liquid crystal layer can also be used
Panel, reduce the cost of display device.
Embodiments of the invention 7 provide a kind of three- dimensional panoramic show device, with differing only in for above-described embodiment, show
Showing device also includes：Storage device, hologram is loaded onto liquid crystal panel for storing holographic figure, and to set frame frequency.
Under normal circumstances, to make one the conversion of adaptation of eye hologram, frame frequency is set as 24 frames/second, i.e. ordinary video is broadcast
Frame frequency when putting.Storage device is usually computer, by iterative algorithm or point source algorithm computed hologram and can be stored, and can
So that the hologram of storage is loaded onto into liquid crystal panel by hologram to set frame frequency, to show dynamic hologram.This implementation
Example loads hologram to set frame frequency by storage device to liquid crystal panel, can receive the holographic shadow of screen display Three-Dimensional Dynamic
Picture, or the hologram of Three-Dimensional Dynamic can be directly observed at virtual image viewing window.
As shown in figure 8, embodiments of the invention 8 provide a kind of three- dimensional panoramic show method, including：S1, utilize illumination
Light beam illumination path integral unit, the light path integral unit is set to integrate the illuminating bundle；S2, utilize pre-set dimension
Liquid crystal panel on the hologram that loads the light beam after integration is modulated, after liquid crystal panel modulation, display is holographic
Image.
Wherein, light path integral unit specifically includes：Not less than the first Fresnel Lenses of the pre-set dimension；Correspondingly,
S1 is specifically included：The illuminating bundle from the object focus of first Fresnel Lenses or with first Fresnel Lenses
First Fresnel Lenses is irradiated in the position that distance is more than one times of focal length, and the illuminating bundle is integrated；Correspondingly, S2
Specifically include：The light beam after integration is modulated using the hologram loaded on liquid crystal panel, modulated through the liquid crystal panel
Afterwards, the hologram is shown.
Wherein, light path integral unit can also specifically include：Not less than the pre-set dimension the first Fresnel Lenses and
Second Fresnel Lenses；Correspondingly, the S1 is specifically included：The object space of the illuminating bundle from first Fresnel Lenses is burnt
Point the first Fresnel Lenses of irradiation, is changed into collimated light beam by the illuminating bundle；Correspondingly, S2 is specifically included：Utilize liquid crystal surface
The hologram loaded on plate is modulated to the collimated light beam, after liquid crystal panel modulation, through second Fresnel
The collimated light beam is changed into convergent beam by lens, shows the hologram.
Wherein, hologram is loaded on liquid crystal panel is specially：The storage device for being stored with hologram will to set frame frequency
Hologram is loaded onto liquid crystal panel.
Specifically, the flow of display methods corresponds with operating process and above-mentioned display device in the present embodiment, herein
Repeat no more.
Finally, method of the invention is only preferable embodiment, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (10)
1. three- dimensional panoramic show device, it is characterised in that including：The liquid crystal of light source cell, light path integral unit and pre-set dimension
Panel；
The light source cell is used to produce illuminating bundle；The light path integral unit is used to integrate the illuminating bundle；The liquid
Hologram is loaded with crystal panel, for being modulated to the light beam after integration, to show hologram；
Wherein, the optical axis of the light path integral unit is conllinear with the perpendicular bisector of the liquid crystal panel surface.
2. three- dimensional panoramic show device according to claim 1, it is characterised in that the light path integral unit includes：No
Less than the Fresnel Lenses of the pre-set dimension.
3. three- dimensional panoramic show device according to claim 2, it is characterised in that the Fresnel Lenses specifically includes：
First Fresnel Lenses；
The light source cell is arranged in the object focus of first Fresnel Lenses or first Fresnel Lenses
Outside object focus, first Fresnel Lenses and the liquid crystal panel be arranged in parallel successively along optical propagation direction.
4. three- dimensional panoramic show device according to claim 3, it is characterised in that also include：Receiving screen or virtual image viewing
Window；
The receiving screen is arranged in the image space focal plane of first Fresnel Lenses, for showing the hologram；
The virtual image viewing window is arranged near the rear focus of first Fresnel Lenses, the virtual image viewing window
Position is the viewing location of the hologram.
5. three- dimensional panoramic show device according to claim 2, it is characterised in that the light path integral unit is specifically wrapped
Include：First Fresnel Lenses and the second Fresnel Lenses；
The light source cell is arranged in the object focus of first Fresnel Lenses, first Fresnel Lenses, described
Liquid crystal panel and second Fresnel Lenses be arranged in parallel successively along optical propagation direction.
6. three- dimensional panoramic show device according to claim 5, it is characterised in that also include：Receiving screen or virtual image viewing
Window；
The receiving screen is arranged in the image space focal plane of second Fresnel Lenses, for showing the hologram；
The virtual image viewing window is arranged near the rear focus of second Fresnel Lenses, the virtual image viewing window
Position is the viewing location of the hologram.
7. the three- dimensional panoramic show device according to any one of claim 1-6, it is characterised in that also include：Storage is set
Standby, the storage device electrically connects with the liquid crystal panel, adds the hologram for storing holographic figure, and to set frame frequency
It is loaded onto the liquid crystal panel.
A kind of 8. three- dimensional panoramic show method, it is characterised in that including：
S1, using illuminating bundle illumination path integral unit, the light path integral unit is set to integrate the illuminating bundle；
S2, the light beam after integration is modulated using the hologram loaded on the liquid crystal panel of pre-set dimension, through the liquid crystal
After modulation panel, hologram is shown.
9. three- dimensional panoramic show method according to claim 8, it is characterised in that the light path integral unit is specifically wrapped
Include：Not less than the first Fresnel Lenses of the pre-set dimension；
Correspondingly, S1 is specifically included：
The illuminating bundle is big from the object focus of first Fresnel Lenses or with the distance of first Fresnel Lenses
First Fresnel Lenses is irradiated in the position of one times of focal length, the illuminating bundle is integrated；
Correspondingly, S2 is specifically included：
The light beam after integration is modulated using the hologram loaded on liquid crystal panel, after liquid crystal panel modulation, shown
Show the hologram.
10. three- dimensional panoramic show method according to claim 8, it is characterised in that the light path integral unit is specifically wrapped
Include：Not less than the first Fresnel Lenses and the second Fresnel Lenses of the pre-set dimension；
Correspondingly, S1 is specifically included：
The illuminating bundle irradiates the first Fresnel Lenses from the object focus of first Fresnel Lenses, by the illumination light
Shu Bianwei collimated light beams；
Correspondingly, S2 is specifically included：
The collimated light beam is modulated using the hologram loaded on liquid crystal panel, after liquid crystal panel modulation, warp
The collimated light beam is changed into convergent beam by second Fresnel Lenses, shows the hologram.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710431114.5A CN107422487A (en) | 2017-06-08 | 2017-06-08 | Three- dimensional panoramic show device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599922A (en) * | 2019-09-23 | 2019-12-20 | 苏州维卡幻境智能科技有限公司 | Lighting device and system based on holographic display window |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549212A (en) * | 2016-02-29 | 2016-05-04 | 京东方科技集团股份有限公司 | Three-dimension display system |
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2017
- 2017-06-08 CN CN201710431114.5A patent/CN107422487A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549212A (en) * | 2016-02-29 | 2016-05-04 | 京东方科技集团股份有限公司 | Three-dimension display system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110599922A (en) * | 2019-09-23 | 2019-12-20 | 苏州维卡幻境智能科技有限公司 | Lighting device and system based on holographic display window |
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