CN105044912B - A kind of 3D paraxonics virtual image display system - Google Patents
A kind of 3D paraxonics virtual image display system Download PDFInfo
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- CN105044912B CN105044912B CN201510493386.9A CN201510493386A CN105044912B CN 105044912 B CN105044912 B CN 105044912B CN 201510493386 A CN201510493386 A CN 201510493386A CN 105044912 B CN105044912 B CN 105044912B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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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
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
- G02B30/35—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using reflective optical elements in the optical path between the images and the observer
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Abstract
The invention discloses a kind of 3D paraxonics virtual image display system, belongs to type of flight simulator virtual image display technology field.The display system includes：Scenario generating module, fusion projection module and display module；Scenario generating module is used to the position according to left eye and right eye, generate left eye picture 2D vision signals and right eye picture 2D vision signals in real time；Fusion projection module is used to be corrected fusion to left eye picture 2D vision signals and right eye picture 2D vision signals, and projects display module by the corresponding 3D vision signals of 2D vision signals, then by left eye picture and right eye picture；Display module includes 3D projection screens, spherical reflector and 3D glasses, and 3D glasses are polarization type 3D glasses.Within the system, when occurring distant object in scene, distant object depth perception true to nature is ensured by the larger equivalent image-forming range of virtual image display system；When occurring nearby target in scene, 3D display technology solves near-end imaging scale problem of dtmf distortion DTMF.
Description
Technical field
The present invention relates to type of flight simulator virtual image display technology field, more particularly to a kind of 3D paraxonics virtual image display system
System.
Background technology
It is currently the common display system of type of flight simulator that paraxonic virtual image display system, which is, double especially suitable for left and right
Seat cockpit type of flight simulator.Current paraxonic virtual image display system mainly includes graphics workstation, projector, projection screen
And spherical reflector.Wherein projection screen is Rear projection screen, and projection screen is anti-less than sphere apart from the distance of spherical reflector
Penetrate one times of focal length of mirror.The system schematic is as shown in Figure 1, graphics workstation generates the picture of simulated scenario and will regard accordingly
Frequency signal sends projector to, and it is in real image that projector, which projects image onto on projection screen and on the surface of projection screen evagination, throws
The picture for being on shadow screen projects the surface of spherical reflector indent again, is in upright amplification on the surface of spherical reflector indent
The virtual image.Paraxonic virtual image display system is with the depth of field is good, three-dimensional sense is strong, brightness is high, rate is high respectively for good contrast and imaging
Advantage, and simulate take-off and landing when or so pilot's parallax it is small, easy to aircrew cooperation.Current paraxonic virtual image display system
Equivalent image-forming range more than 10 meters, therefore when there is target closer to the distance in the scene presented on spherical reflector, example
Such as simulate refueled aircraft and scene during fuel charger close/intra, the aspect ratio distortion presented.
In the implementation of the present invention, the inventors discovered that having at least the following problems in the prior art：Existing side
Axis virtual image display system cannot meet the simulation requirement of target closer to the distance.
The content of the invention
In order to solve above-mentioned technical problem, the present invention is provided by a kind of 3D that disclosure satisfy that close-in target simulation and require
Axis virtual image display system.
Specifically, including following technical solution：
A kind of 3D paraxonics virtual image display system, the 3D paraxonic virtual image display systems include：Scenario generating module, fusion projection
Module and display module；
The scenario generating module is used for according to the position of left eye and right eye, generate in real time left eye picture 2D vision signals and
Right eye picture 2D vision signals；
The fusion projection module is used to carry out the left eye picture 2D vision signals and right eye picture 2D vision signals
Correction fusion, and the left eye picture 2D vision signals and right eye picture 2D vision signals are converted into corresponding left eye picture 3D
Vision signal and right eye picture 3D vision signals, then by the left eye picture 3D vision signals and right eye picture 3D vision signals
Corresponding left eye picture and right eye picture are generated, then the left eye picture and right eye picture are projected into the display module；
The display module includes 3D projection screens, spherical reflector and 3D glasses, and the 3D projection screens are thrown for back projection type
Shadow screen, the distance between the 3D projection screens and the spherical reflector are less than one times of focal length of the spherical reflector；It is described
3D glasses are polarization type 3D glasses.
Specifically, the scenario generating module includes Helmet tracking equipment and tomography computer；The Helmet tracking is set
It is ready for use on collection human head location data；The tomography computer is dual output tomography computer, for according to aspect
Data and the human head location data determine the position of left eye and right eye, and real-time according to the position of the left eye and right eye
Generate the left eye picture 2D vision signals and right eye picture 2D vision signals.
Specifically, the fusion projection module includes correction fusion machine, 2D-3D signal adapters and 3D projectors；Institute
State correction fusion machine and correct fusion machine for two clips, for being regarded respectively to the left eye picture 2D vision signals and right eye picture 2D
Frequency signal is corrected fusion；The 2D-3D signal adapters are used for the left eye picture 2D vision signals and right eye picture
2D vision signals are converted to corresponding left eye picture 3D vision signals and right eye picture 3D vision signals；The 3D projectors are used for
Receive the left eye picture 3D vision signals and right eye picture 3D vision signals, and by the left eye picture 3D vision signals and the right side
Eye picture 3D vision signals generate corresponding left eye picture and right eye picture, then the left eye picture and right eye picture are projected
The display module.
Preferably, the 3D projectors are single-lens 3D projectors, and the light source that the 3D projectors use is laser light source.
Specifically, the shape of the 3D projection screens is spheric or tire tread shape.
Preferably, the material of the 3D projection screens is provided with the poly (methyl methacrylate) plate of optical scattering layer for surface.
Preferably, the optical scattering layer is supporting part cloth or 3D projection paints.
Preferably, the reflecting medium of the spherical reflector is polyester film, the silica glass plate of metal-plated membrane or plating
There is the poly (methyl methacrylate) plate of metal film.
The beneficial effect of technical solution provided in an embodiment of the present invention：
3D stereo display techniques are combined by the embodiment of the present invention with paraxonic virtual image Display Technique, have obtained a kind of 3D paraxonics
Virtual image display system.The 3D paraxonic virtual image display systems combine 3D stereo display techniques and paraxonic virtual image Display Technique is respective
Advantage.When occurring distant object in scene, ensure that distant object is forced by the larger equivalent image-forming range of virtual image display system
Genuine depth perception；When occurring nearby target in scene, the screen ability that goes out of 3D display technology effectively solves the mistake of near-end imaging scale
True problem, disclosure satisfy that nearby target, such as simulation super-intensive are formed into columns and in the air by the image-forming range requirement of oil.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the schematic diagram of existing paraxonic virtual image display system；
Fig. 2 is the schematic diagram of 3D paraxonics virtual image display system provided in an embodiment of the present invention；
Fig. 3 is the principle schematic of single-lens 3D projectors；
Fig. 4 is the schematic diagram of spheric 3D projection screens；
Fig. 5 is the schematic diagram of tire tread shape 3D projection screens.
Embodiment
To make technical scheme and advantage clearer, embodiment of the present invention is made below in conjunction with the accompanying drawings into one
It is described in detail on step ground.
The embodiment of the present invention provides a kind of 3D paraxonics virtual image display system, referring to Fig. 2, the 3D paraxonic virtual image display system bags
Include：Scenario generating module, fusion projection module and display module；
The scenario generating module is used for according to the position of left eye and right eye, generate in real time left eye picture 2D vision signals and
Right eye picture 2D vision signals；
The fusion projection module is used to carry out the left eye picture 2D vision signals and right eye picture 2D vision signals
Correction fusion, and the left eye picture 2D vision signals and right eye picture 2D vision signals are converted into corresponding left eye picture 3D
Vision signal and right eye picture 3D vision signals, then by the left eye picture 3D vision signals and right eye picture 3D vision signals
Corresponding left eye picture and right eye picture are generated, then the left eye picture and right eye picture are projected into the display module；
The display module includes 3D projection screens, spherical reflector and 3D glasses, and the 3D projection screens are thrown for back projection type
Shadow screen, the distance between the 3D projection screens and the spherical reflector are less than one times of focal length of the spherical reflector；It is described
3D glasses are polarization type 3D glasses.
The nuance for the object that the mankind are seen by right eye and left eye perceives the depth of object, so as to identify vertical
Body image, this species diversity are referred to as parallax.3D (three-dimensional, Three Dimensional) stereo display technique is namely based on eyes
Principle of parallax design.3D stereo display techniques are come the parallax of the images of left and right eyes of manufacturer, to left and right by artificial means
Eye sends to the two images of parallax respectively, and it is true to produce observation after the different images that right and left eyes are seen are obtained for brain
The sensation of three-dimensional body.The characteristics of 3D stereo display techniques is：With respect to perspective plane apart near virtual scene content sense of reality ratio
Stronger apart from the remote sense of reality with respect to perspective plane, that is, it is good to go out to shield picture effect, and longer-distance image content and common 2D (two
Dimension, Two Dimensional) Display Technique is close.3D stereo display techniques are divided into active 3D stereo display techniques and passive 3D
Stereo display technique.Wherein, passive 3D stereo display techniques are also referred to as polarisation 3D display technology, be according to the polarization property of light come
Realize 3D display.Passive 3D stereoscopic displays flicker free, for a long time using will not cause asthenopia, used in passive 3D stereoscopic displays
Polarization type 3D glasses costs it is low.
The characteristics of based on above-mentioned passive 3D stereo display techniques, the embodiment of the present invention is by passive 3D stereo display techniques application
Into paraxonic virtual image display system, passive 3D stereo display techniques have been combined with the respective advantage of paraxonic virtual image Display Technique
Come, obtained a kind of 3D paraxonics virtual image display system.The operation principle of the 3D paraxonic virtual image display systems is：Scenario generating module
According to the position of left eye and right eye, left eye picture 2D vision signals and right eye picture 2D vision signals are generated in real time；Due to flight
Simulated scenario is larger, it usually needs multi-picture is spliced, therefore scenario generating module generally produces the picture of multiple passages
(such as 3 passages), in order to make the picture of each passage generation continuous, fusion projection module is to left eye picture 2D vision signals and the right side
Eye picture 2D vision signals are corrected fusion, and left eye picture 2D vision signals and right eye picture 2D vision signals are converted to
The left eye for meeting HDMI (high-definition multimedia interface, High Definition Multimedia Interface) specification is drawn
Face 3D vision signals and right eye picture 3D vision signals, then left eye picture and right eye picture are projected into 3D projection screens, thrown in 3D
Be in real image on shadow screen, image into real image as spherical reflector, be in spherical reflector finally upright amplification the virtual image, fly
Office staff wears the formed virtual image on 3D eyes viewing spherical reflector.When occurring distant object in scene, shown by the virtual image
The larger equivalent image-forming range of system ensures distant object depth perception true to nature；When occurring nearby target in scene, 3D display
The screen ability that goes out of technology effectively solves near-end imaging scale problem of dtmf distortion DTMF, disclosure satisfy that nearby target, such as simulation super-intensive are compiled
Team and in the air by oil image-forming range requirement.
In above-mentioned 3D paraxonic virtual image display systems, scenario generating module includes Helmet tracking equipment and imaging calculates
Machine.When some characteristic bodies (such as by oil pipe) of the pilot using real cabin and target (the oil filling pipe umbrella cover in virtual scene
Or fuel charger fuselage markings when) object of reference as relativeness when, since viewing distance is nearer, when changing head position, is observed
Variations in detail it is also very notable, it is therefore desirable to solve changing head position using Helmet tracking equipment and cause the additional real-time change of picture
The problem of.It is provided with sensor in Helmet tracking equipment, sensor detection pilot's head position and by the head position of collection
Data send tomography computer to.Tomography computer is dual output tomography computer, i.e., by images of left and right eyes picture 2D vision signals point
Do not export, to ensure follow-up 3D display effect.Tomography computer by aspect data and human head location data investigation,
Actual imaging eyespot parameter is formed, deviates the position for determining left eye and right eye by left and right on the basis of eyespot parameter is imaged
Put, the setting further according to instructor station generates left eye picture 2D vision signals and right eye picture 2D vision signals.Such as according to teacher
Platform sets generation fuel charger real time position posture, and the relative motion of umbrella cover is calculated according to the aerodynamic simulations of oiling umbrella cover,
The moment right and left eyes scenic picture is generated respectively.
In above-mentioned 3D paraxonic virtual image display systems, fusion projection module includes correction fusion machine, the conversion of 2D-3D signals
Device and 3D projectors；Correct fusion machine and correct fusion machine for two clips, correspond to the right and left eyes of dual output tomography computer respectively
Picture, the correction syncretizing mechanism each blocked are identical with conventional correction fusion machine, it is only necessary to set up any one in the picture of left and right
Fusion parameters are corrected, another picture is cloned completely.2D-3D signal adapters draw left eye picture 2D vision signals and right eye
Face 2D vision signals are converted to the left eye picture 3D vision signals for meeting HDMI specifications and right eye picture 3D vision signals.3D is projected
3D is projected after machine reception left eye picture 3D vision signals and right eye picture 3D vision signals and by left eye picture and right eye picture
On projection screen.
In above-mentioned 3D paraxonic virtual image display systems, 3D projectors can use to be commonly used in existing passive 3D stereoscopic displays
3D projectors.Since 3D stereoscopic displays are designed according to binocular parallax principle, Liang Tai projectors difference is usually required
Right and left eyes picture is projected, the configuration mode of Liang Tai projectors is more complicated.Therefore, preferably single-lens 3D projectors of 3D projectors.
Single-lens 3D projectors use " 4 frequency multiplication light path of diamond " technology (index path is as shown in Figure 3), by right and left eyes picture in projector
Portion is combined into a light path, is launched by a common camera lens.Passive 3D stereoprojections are being retained using single-lens 3D projectors
The problem of on the premise of advantage, avoiding and configured to dual-projection machine, avoiding picture alignment；Right and left eyes picture projecting light path
Overlap, fusion correction parameter replicates, and does not increase debugging work load except reducing cost；Brilliant synchrotron becomes during use
Change；Reduce maintenance at the same time.The single-lens 3D projectors use laser light source, its operation principle schematic diagram is as shown in Figure 3.Laser is shown
Show that system is mainly made of tricolor laser light source, light engine and optical projection system three parts.Light engine then mainly by
Redgreenblue light valve, close beam X prisms, light valve driving composition, and light valve drives added with image modulation signal, makes to give birth to respectively on light valve
Into the corresponding small picture of three color of red, green, blue, three color laser lightings are then introduced respectively, by projection systems project to screen,
Produce full-color display image.Serving as the miniature display chip of light valve has LCD (liquid crystal display, Liquid Crystal
Display), LCOS (liquid crystal on silicon, Liquid Crystal on Silicon), DLP (digital light processing, Digital
Light Procession) circuit board, GLV (grating light valve, Grating Light Valve) etc..Laser light source long lifespan,
20000 is undamped when small；Light source is independent with ray machine, and maintenance does not destroy light path.
In above-mentioned 3D paraxonic virtual image display systems, 3D glasses can in existing pilot during practical flight institute
It is improved on the basis of the flying goggles of wearing, it is met the requirement of polarization type 3D glasses, makes simulated training closer to reality
Border.
In above-mentioned 3D paraxonic virtual image display systems, the shapes of 3D projection screens can be spheric (as shown in Figure 4) or
Person's tire tread shape (as shown in Figure 5).Wherein, sphere be circle around its diameter rotation formed by face, tire tread be circle around non-straight
The rotation axis in footpath rotates the face to be formed, the surface of similar automobile tire, also referred to as anchor ring or hyperboloid.The material of projection screen
The poly (methyl methacrylate) plate of optical scattering layer is provided with for surface.First by hot bending process by poly (methyl methacrylate) plate be processed into sphere or
Coating (or laying) optical scattering layer in the shape of tire tread, then the surface of poly (methyl methacrylate) plate evagination after shaping.For
For 3D paraxonic virtual image display systems, the optical scattering layer of projection screen surface should make the picture that 3D projectors are presented on rear projection screen
Face is maintained to polarization characteristic, is that necessary condition is created in the isolation of right and left eyes picture at eyespot.Therefore optical scattering layer can be with
For supporting part cloth or 3D projection paints.The model of wherein 3D projection paints can be ChromaFlux Silver 3D Coat
Screen.The coating processes embodiment of the present invention of laying process and 3D the projection paint of supporting part cloth does not do particular determination, and this area is normal
Advise technological means.The laying process of supporting part cloth can be to fasten rope in supporting part cloth surrounding, and projection screen is arrived in another pulling
On, the stressing conditions on each rope are then adjusted, supporting part cloth is tightly uniformly laid on projection screen.The spray of 3D projection paints
Applying technique can be first in clean projection screen surface sandblasting and then spray 3D projection paints again.
In above-mentioned 3D paraxonic virtual image display systems, the reflecting medium used in spherical reflector can use existing poly-
The silica glass plate of ester film or metal-plated membrane.The processing technology of polyester film spherical reflector is：Polyester film is puted up
Microscope base frame on, then by the method for vacuum suction it is tensioned to the required shape of optical system；Pass through pre-buried spiral shell
Bolt and edge strip, ensure polyester film shaping after each form parameter index within range of tolerable variance, without macroscopic fault,
Defect and step point.Suction interface and sensor installation interface are left on microscope base, the control system outside microscope base passes through biography
Sensor monitors air negative pressure in microscope base cavity at any time, and driving vacuum pump work maintains negative air pressure, ensures the work of reflectance coating
Face shape.Above-mentioned microscope base can use the material processing light-weight, intensity is high, to meet type of flight simulator work requirements.
Such as the form of fiber reinforced epoxy resin based composites and filled honeycomb can be used, according to 2 layers of carbon fiber from outside to inside
Cloth, 1 layer of chopped mat (i.e. glass fiber precursor chopped mat), the aluminum or plastic honeycomb and 2 layers of glass fibers that thickness is 15mm
The order of cloth is tieed up by mould vacuum-only cure, but since polyester film is influenced by film-forming process, the size of polyester film
It is only limitted to certain size, it is impossible to meet the requirement of larger display visual field.The silica glass spherical reflector of metal-plated membrane adds
Work technique is：First by the silica glass plate hot mastication of certain thickness (such as 10mm), using mould hot bending, fibre is then used
Dimension reinforced epoxy based composites molding silica glass plate is carried out with cast aluminum base it is be bonded, with grind illuminating apparatus to silica glass
The concave surface of plate, which is ground, makes its surface roughness reach requirement, then silica glass plate inner surface plating metal after treatment
Film.Since silica glass plate can be by the method for splicing come propagation size, using silica glass plate as spherical reflector
Reflecting medium disclosure satisfy that the requirement of larger display visual field, but the heavier-weight of silica glass plate.Due to above-mentioned reflecting medium
All come with some shortcomings, therefore reflecting medium of the poly (methyl methacrylate) plate of metal-plated membrane as spherical reflector can be used.Have
The processing technology of machine glass spherical reflector is：The poly (methyl methacrylate) plate of a side surface metal-plated membrane is placed on mould table first
Face, after poly (methyl methacrylate) plate and mould are heated to 90~120 DEG C, applying pressure to poly (methyl methacrylate) plate is fitted in poly (methyl methacrylate) plate
Die surface；Organic glass spheric glass is obtained after cooling down, remove mould again；Have again as obtained by making the method for vacuum suction
Machine glass sphere lens sticker is closed in surface of mirror base.Using the poly (methyl methacrylate) plate of surface metal-plated membrane as the anti-of spherical reflector
The requirement of larger display visual field can not only be met by penetrating medium, and intensity is high, light-weight.
In above-mentioned 3D paraxonic virtual image display systems, the size of spherical reflector, the size and sphere of 3D projection screens
Specific position relationship does not all have considered critical between speculum and 3D projection screens, can be by adjusting above-mentioned parameter to adjust
Obtain the horizontal field of view of 3D paraxonic virtual image display systems and the size of vertical field of view.
To sum up, the embodiment of the present invention is by combining the advantage of passive 3D stereo display techniques and paraxonic virtual image Display Technique,
A kind of 3D paraxonics virtual image display system has been obtained, has efficiently solved near-end imaging scale problem of dtmf distortion DTMF.The gained 3D paraxonic virtual images are shown
Show that the technical indicator of system is as follows：
Horizontal field of view angle, 180 °~220 °；
Vertical field of view angle, 40 °~60 °；
Brightness, ≮ 6 footlamberts；
Contrast, ≮ 10:1；
Physics image-forming range, ≮ 8500mm；
Virtual image distance, 1.5m-30km.
The above is for only for ease of it will be understood by those skilled in the art that technical scheme, not limiting
The present invention.Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in this
Within the protection domain of invention.
Claims (7)
1. a kind of 3D paraxonics virtual image display system, it is characterised in that the 3D paraxonics virtual image display system includes：Scene generates mould
Block, fusion projection module and display module；
The scenario generating module is used to the position according to left eye and right eye, generate left eye picture 2D vision signals and right eye in real time
Picture 2D vision signals；
The fusion projection module is used to be corrected the left eye picture 2D vision signals and right eye picture 2D vision signals
Fusion, and the left eye picture 2D vision signals and right eye picture 2D vision signals are converted into corresponding left eye picture 3D videos
Signal and right eye picture 3D vision signals, then generate the left eye picture 3D vision signals and right eye picture 3D vision signals
Corresponding left eye picture and right eye picture, then the left eye picture and right eye picture are projected into the display module；
The display module includes 3D projection screens, spherical reflector and 3D glasses, and the 3D projection screens are Rear projection screen,
The distance between the 3D projection screens and the spherical reflector are less than one times of focal length of the spherical reflector；The 3D glasses
For polarization type 3D glasses；
The reflecting medium of the spherical reflector is the poly (methyl methacrylate) plate of metal-plated membrane, and organic glass spheric glass is by with lower section
Method obtains：The poly (methyl methacrylate) plate of a side surface metal-plated membrane is placed on die surface first, by poly (methyl methacrylate) plate and mould
After being heated to 90~120 DEG C, applying pressure to poly (methyl methacrylate) plate makes poly (methyl methacrylate) plate be fitted in die surface；Again through cooling down, taking off
Except obtaining organic glass spheric glass after mould.
2. 3D paraxonics virtual image display system according to claim 1, it is characterised in that the scenario generating module includes head
Position tracking equipment and tomography computer；
The Helmet tracking equipment is used to gather human head location data；
The tomography computer is dual output tomography computer, for according to aspect data and the human head location number
According to the position of definite left eye and right eye, and generate the left eye picture 2D videos letter in real time according to the position of the left eye and right eye
Number and right eye picture 2D vision signals.
3. 3D paraxonics virtual image display system according to claim 1, it is characterised in that the fusion projection module includes school
Positive fusion machine, 2D-3D signal adapters and 3D projectors；
The correction fusion machine corrects fusion machine for two clips, for being drawn respectively to the left eye picture 2D vision signals and right eye
Face 2D vision signals are corrected fusion；
The 2D-3D signal adapters are used to be converted to the left eye picture 2D vision signals and right eye picture 2D vision signals
Corresponding left eye picture 3D vision signals and right eye picture 3D vision signals；
The 3D projectors are used to receive the left eye picture 3D vision signals and right eye picture 3D vision signals, and by the left side
Eye picture 3D vision signals and right eye picture 3D vision signals generate corresponding left eye picture and right eye picture, then by the left eye
Picture and right eye picture project the display module.
4. 3D paraxonics virtual image display system according to claim 3, it is characterised in that the 3D projectors are single-lens 3D
Projector, the light source that the 3D projectors use is laser light source.
5. 3D paraxonics virtual image display system according to claim 1, it is characterised in that the shape of the 3D projection screens is ball
Face shape or tire tread shape.
6. 3D paraxonics virtual image display system according to claim 1, it is characterised in that the material of the 3D projection screens is table
Face is provided with the poly (methyl methacrylate) plate of optical scattering layer.
7. 3D paraxonics virtual image display system according to claim 6, it is characterised in that the optical scattering layer is supporting part cloth
Or 3D projection paints.
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| CN105608665B (en) * | 2015-12-23 | 2018-08-03 | 中国人民解放军海军航空大学 | Multichannel spherical surface stereopsis scape visual perception depth Method for Accurate Calculation |
| CN106526880A (en) * | 2017-01-12 | 2017-03-22 | 北京航宇荣康科技股份有限公司 | Off-axis virtual image plus stereoscopic display system and method |
| JP7227165B2 (en) | 2017-03-07 | 2023-02-21 | ８２５９４０２ カナダ インコーポレイテッド | How to control the virtual image on the display |
| CN107016899B (en) * | 2017-06-14 | 2019-05-28 | 中国人民解放军95995部队 | A kind of actual situation combination display system |
| CN107490864A (en) * | 2017-08-29 | 2017-12-19 | 杭州联络互动信息科技股份有限公司 | The method, apparatus and VR heads that a kind of video shown for VR heads is shown show |
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| US20090040138A1 (en) * | 2004-06-30 | 2009-02-12 | Takeshi Takahashi | Three-Dimensional Image Displaying System |
| US20090327969A1 (en) * | 2008-06-27 | 2009-12-31 | Microsoft Corporation | Semantic zoom in a virtual three-dimensional graphical user interface |
| CN102339021B (en) * | 2011-07-21 | 2013-07-03 | 成都西麦克虚拟现实电子技术有限公司 | UAV(unmanned aerial vehicle) visual simulation system and simulation method |
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