CN107065178A - Hologram three-dimensional virtual reality glasses optical texture - Google Patents
Hologram three-dimensional virtual reality glasses optical texture Download PDFInfo
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- CN107065178A CN107065178A CN201611191601.0A CN201611191601A CN107065178A CN 107065178 A CN107065178 A CN 107065178A CN 201611191601 A CN201611191601 A CN 201611191601A CN 107065178 A CN107065178 A CN 107065178A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 137
- 239000011521 glass Substances 0.000 title claims abstract description 47
- 230000000694 effects Effects 0.000 claims abstract description 18
- 230000000007 visual effect Effects 0.000 claims abstract description 5
- 238000003384 imaging method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000002050 diffraction method Methods 0.000 claims description 3
- 230000004313 glare Effects 0.000 claims description 3
- 241000638935 Senecio crassissimus Species 0.000 claims 1
- 208000002173 dizziness Diseases 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 5
- 210000003128 head Anatomy 0.000 abstract description 3
- 238000001093 holography Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 210000001525 retina Anatomy 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
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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
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- 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
-
- 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
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
- G02B2027/0174—Head mounted characterised by optical features holographic
-
- 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
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a kind of hologram three-dimensional virtual reality glasses optical texture, hologram is set to be carried in spatial light modulator, reading after light source is adjusted through light beam turns into collimated light beam reproducing 3-D view, the 3-D view of reading passes through Optical processing system and foraminate diaphragm, filter high-order picture, only retain a low order optimized image, after there are the lens as eyepiece, into the eyes of people.The present invention is using two sets of light paths, the left eye and right eye of people is corresponded to respectively, 2 width 3-D views of generation will respectively enter the left eye and right eye of people according to the observation habit of people, light path system is worn on head to be adapted to people, light beam necessary reflection has been subjected to, the portable system of small size is integrated into, holographic true three-dimensional virtual Reality glasses system is formed.3-D effect of the present invention is truer, solves interaction distance and image-forming range problem of disharmony, and because the presence of the hologram angle of visual field, can allow the difference of Different Individual interpupillary distance, it is to avoid produce dizzy sense.
Description
Technical field
The present invention relates to a kind of display, more particularly to a kind of hologram three-dimensional display is further related to wearable virtual existing
Real glasses device, applied to holographic display device technical field.
Background technology
Holographic glasses are a kind of head mounted displays based on holography, it is necessary to use holographic optical elements (HOE) HOE,
Its core component is optical modulator (Spatial Light Modulator, SLM).
Optical modulator is a kind of optics that can be modulated to the spatial distribution of light wave, and its effect is spatially
Light wave amplitude, phase, polarization state and wavelength are changed.The computed hologram CGH of computer manufacture can be passed through saturating
Penetrate or the mode diffraction that reflects goes out the image of hologram three-dimensional.
Holography is a kind of ultimate dimension display technologies, is different from light splitting stereo display technique, and body three-dimensional is aobvious
Show the stereo display techniques such as technology.Principle is the interference record information by light, then by diffraction by information regeneration.Existing void
Intend the utilization of most of Reality glasses is the light splitting stereo display technique of binocular parallax, has the disadvantage that third dimension is not true enough, interaction
Distance is inconsistent with image-forming range, it is impossible to be adapted to the wearer of all interpupillary distance sizes, and long-time wearing spectacles can produce it is dizzy
Dizzy sense, the virtual reality glasses of traditional image-forming principle are easy to produce visual fatigue.
The content of the invention
In order to solve prior art problem, it is an object of the present invention to overcome the deficiencies of the prior art, and to provide one kind
Hologram three-dimensional virtual reality glasses optical texture, the stereoeffect that hologram three-dimensional virtual reality is shown is truer, display effect
More good, interaction distance is consistent with image-forming range, adapts to the wearer of all interpupillary distance sizes, it is to avoid produces dizzy sense, is difficult
Cause visual fatigue, can for a long time wear and use.
To reach that foregoing invention creates purpose, the present invention uses following technical proposals：
A kind of hologram three-dimensional virtual reality glasses optical texture, the main reading light source for including being arranged in frame and
Two sets of light path systems, power supply is powered to read light source and two sets light path systems, and wherein first set light path system is mainly by with second
Light path system is covered mainly respectively by the 4f system filter structure compositions of a set of use Fourier transform, uses the 4f of Fourier transform
System filter structure is mainly made up of optical modulator and Optical processing system fourier transform lenses group, is given birth to according to two sets of light path systems are calculated
Into hologram image image-forming range it is different, the different distance in the front of corresponding Optical processing system fourier transform lenses group is presented
The hologram image of 3 D stereo, the hologram image sent from the different Optical processing system fourier transform lenses groups of two sets of light path systems
Emergent ray by corresponding eyepiece, launches corresponding image beam, two sets of light path systems are corresponded to respectively to the eyes of people respectively
The right and left eyes of people are individually formed corresponding optical system, when using hologram three-dimensional virtual reality glasses optical texture, based on reality
Thing three-dimensional acquisition method or the threedimensional model of computer generating method generation calculate hologram image by holographic imaging method, then
Hologram image is carried on the optical modulator of two sets of light path systems respectively, the light from reading light source is with collimated light beam formula
Incident ray is incided on the optical modulator of two sets of light path systems respectively, by optical diffraction method, respectively by optical modulator
Hologram image read as corresponding 3-D view, the 3-D view of reading is again respectively through Optical processing system fourier transform lenses group
To the 3-D view light wave propagated eliminate the processing of image background veiling glare in Optical processing system fourier transform lenses group, filter
High-order Image, and retain low order image, then after corresponding eyepiece, it is presented on hologram image and is observed for the left and right of people
In the range of the different corresponding forms examined, the left and right eye of people is respectively enterd by form, the eyes of people is respectively obtained pair
The image answered.
As the first preferred technical scheme of the present invention, the optical modulator shape that light path system all uses transmission-type is often covered
Into imaging optical path.
As second of preferred technical scheme of the present invention, often cover light path system and all use reflective optical modulator shape
Into imaging optical path, beam-splitting structure is provided between two sets of light path systems, is switched to from the light for reading light source by beam-splitting structure
Two beam incident rays, the incident light source used cooperatively respectively as the optical modulator of two sets of light path systems.
As the improved technology scheme of second of preferred technical scheme of the present invention, two sets of light path systems have identical knot
Structure, and a reading light source is shared, beam-splitting structure, into beam splitting system, utilizes light splitting by two Amici prisms and a half wave plate group
The characteristic of the half-reflection and half-transmission of prism, makes reading light source first pass through Amici prism reflection, then occur diffraction, diffraction by optical modulator
The holographic images gone out are imaged by the transmission effect of Amici prism through the body of Amici prism again, and beam-splitting structure is to come from
The light for reading light source switchs to two beam incident rays by first Amici prism, wherein passing through the after first Amici prism
A branch of incident ray is directly incident on the optical modulator of first set light path system, wherein passing through after first Amici prism
Two beam incident rays continue to incide as secondary light source on second Amici prism, and secondary light source is used as second set of light path system
Optical modulator reading light source, place half-wave plate between two Amici prisms, utilize half-wave plate regulation splitting ratio.
Improved as one kind of above-mentioned technical proposal of the present invention, in the 4f system filter structures using Fourier transform,
Optical processing system fourier transform lenses group by one with foraminate diaphragm and a pair of convex lens groups into diaphragm is arranged on into first
Convex lens focal point, and the convex lens of second are arranged at 2 times of focal lengths of the convex lens of first, constitute 4f optics
System, the diffraction image light launched from optical modulator incides the convex lens of first, then incides second by diaphragm
Convex lens, then by eyepiece enter observer eyes, two sets light path systems respectively correspond to people left eye and right eye generate
Two width 3-D views, observer is seen hologram image clearly.
As another improvement of above-mentioned technical proposal of the present invention, in the 4f system filter structures using Fourier transform
In, Optical processing system fourier transform lenses group by one with foraminate diaphragm and a pair of convex lens groups into diaphragm is arranged on into
The focal point of the convex lens of one, and the convex lens of second are arranged at 2 times of focal lengths of the convex lens of first, constitute 4f
Optical system, the diffraction image light launched from optical modulator is acted on by the transmission of beam-splitting structure, incides first convex
Lens, then the convex lens of second are incided by diaphragm, the eyes of observer, two sets of light path systems are then entered by eyepiece
The left eye of people and two width 3-D views of right eye generation are corresponded to respectively, observer is seen hologram image clearly.
As the further improvement of above-mentioned technical proposal of the present invention, read light source and light is used as using laser, LED or OLED
Source, when reading light source uses laser as light source, the light from reading light source is by beam steering devices with collimated light beam
The incident ray of formula is incided on the optical modulator of two sets of light path systems respectively.
As the further improvement of above-mentioned technical proposal of the present invention, laser transmitting laser is used to be used as light when reading light source
During source, beam steering devices are by the convex lens group of the independent adjustment light beam of expander lens and one into being set in the front end of laser
Put the expander lens with fixed multiplying power, then be adjusted the convex lens effect of light beam and obtain directional light, make directional light incident light
The beam area of modulator, reaches the light beam face for the 3-D view that optical modulator is launched to Optical processing system fourier transform lenses group
Product.
As the further improvement of above-mentioned technical proposal of the present invention, by setting a series of anti-respectively in two sets of light path systems
Mirror is penetrated, in the range of the correspondingly-sized that light path folding is limited in the internal structural space of frame, frame is used and worn
Formula modular construction, utilizes two sets of light path system formation hologram three-dimensional displays.
As the further improvement of above-mentioned technical proposal of the present invention, optical modulator is using LCD space light modulator, sound-optical
Modulator or digital micro-mirror spatial light modulator, the angle of visual field is gone out at 1 ° -20 ° using the optical modulator diffraction of 1-20 μm of Pixel Dimensions
The 3-D view of scope.
The present invention compared with prior art, substantive distinguishing features and remarkable advantage is obviously protruded with following：
1. hologram three-dimensional virtual reality glasses optical texture light path of the present invention is simple, low to the power requirement of light source, and because
It is short for viewing distance, low is required to the display size of spatial light modulator；
2. the present invention solves the dizzy effect produced by head mounted display, and regarding due to hologram image from principle
The presence of rink corner, can make head mounted display be adapted to the user of all interpupillary distances, good three dimensional viewing effect is reached eventually；
3. the computed hologram that the present invention goes out with optical modulator diffraction passes through a series of optical system, by real three
Dimension field information is presented to the eyes of observer in form, is following holographic virtual reality glasses and holographic augmented reality glasses
Making provide light path design basis.
Brief description of the drawings
Fig. 1 is the virtual reality glasses structure with the hologram three-dimensional virtual reality glasses optical texture of the embodiment of the present invention one
Figure.
Fig. 2 is the light path schematic diagram of the 4f system filter structures of the embodiment of the present invention one.
Fig. 3 is the simple eye windows system structural representation of the embodiment of the present invention one.
Fig. 4 is the holographic light path schematic diagram of the hologram three-dimensional virtual reality glasses optical texture of the embodiment of the present invention one.
Embodiment
Details are as follows for the preferred embodiments of the present invention：
Embodiment one：
In the present embodiment, referring to Fig. 1~4, a kind of hologram three-dimensional virtual reality glasses optical texture is main to include installing
Reading light source 2 and two sets of light path systems in frame 11, power supply are powered to read light source 2 and two sets of light path systems, its
Middle first set light path system is main by mainly being filtered respectively by the 4f systems of a set of use Fourier transform with second set of light path system
Wave structure is constituted, main saturating by optical modulator 1 and Optical processing system Fourier using the 4f system filters structure of Fourier transform
Microscope group is constituted, different according to the image-forming range for calculating the hologram image that two sets of light path systems are generated, in corresponding Optical processing system
The hologram image of 3 D stereo is presented in the different distance in the front of fourier transform lenses group, from the different optics of two sets of light path systems
The hologram image emergent ray that 4f system fourier transform lenses groups S is sent is respectively by corresponding eyepiece 7, to the eyes transmitting pair of people
The image beam answered, the right and left eyes that two sets of light path systems correspond to people respectively are individually formed corresponding optical system, using holographic
During three-dimension virtual reality glasses optical texture, the threedimensional model generated based on physical three-dimensional acquisition method or computer generating method
Hologram image is calculated by holographic imaging method, then hologram image is carried on to the optical modulator 1 of two sets of light path systems respectively
On, incide the optical modulator 1 of two sets of light path systems respectively with the incident ray of collimated light beam formula from the light for reading light source 2
On, by optical diffraction method, the hologram image on optical modulator 1 is read as into corresponding 3-D view, the three of reading respectively
Dimension image is again respectively through Optical processing system fourier transform lenses group to the three-dimensional propagated in Optical processing system fourier transform lenses group
Image light waves eliminate the processing of image background veiling glare, filter High-order Image, and retain low order image, then by corresponding
After eyepiece 7, hologram image is presented in the range of the different corresponding forms 12 for the right and left eyes observation of people, pass through form
12 respectively enter the left and right eye 8 of people, the eyes of people is respectively obtained corresponding image.
In the present embodiment, referring to Fig. 1~4, light path system is often covered all using the reflective formation imaging of optical modulator 1
Road, is provided with beam-splitting structure between two sets of light path systems, and it is incident that the light from reading light source 2 switchs to two beams by beam-splitting structure
Light, the incident light source used cooperatively respectively as the optical modulator 1 of two sets of light path systems.Two sets of light path systems have identical knot
Structure, and a reading light source 2 is shared, beam-splitting structure constitutes beam splitting system by two Amici prisms 5 and a half-wave plate 10, utilized
The characteristic of the half-reflection and half-transmission of Amici prism 5, makes reading light source 2 first pass through Amici prism 5 and reflects, then occurs by optical modulator 1
Diffraction, the holographic images that diffraction goes out are imaged by the transmission effect of Amici prism 5 through the body of Amici prism 5 again, light splitting
Structure is that the light from reading light source 2 switchs to two beam incident rays by first Amici prism 5, wherein passing through first
The first beam incident ray after Amici prism 5 is directly incident on the optical modulator 1 of first set light path system, wherein passing through first
The second beam incident ray after individual Amici prism 5 continues to incide on second Amici prism 5 as secondary light source, secondary light source
As the reading light source of the optical modulator 1 of second set of light path system, half-wave plate 10 is placed between two Amici prisms 5, is utilized
Half-wave plate 10 adjusts splitting ratio.
In the present embodiment, referring to Fig. 1~4, in the 4f system filter structures using Fourier transform, Optical processing system
Fourier transform lenses group is constituted by one with foraminate diaphragm 9 and a pair of convex lens 4, and diaphragm 9 is arranged on to the convex lens of first
The focal point of mirror 4, and the convex lens 4 of second are arranged at 2 times of focal lengths of the convex lens 4 of first, constitute 4f optical systems
System, the diffraction image light launched from optical modulator 1 is acted on by the transmission of beam-splitting structure, incides the convex lens 4 of first,
The convex lens 4 of second are incided by diaphragm 9 again, then pass through the eyes 8 that eyepiece 7 enters observer, two sets of light path systems
The left eye of people and two width 3-D views of right eye generation are corresponded to respectively, observer is seen hologram image clearly.
In the present embodiment, referring to Fig. 1~4, read light source 2 and laser is launched as light source using laser, from reading
The light that the light of light source 2 incides two sets of light path systems respectively by beam steering devices with the incident ray of collimated light beam formula is adjusted
On device 1 processed.Beam steering devices are made up of the convex lens 4 of the independent adjustment light beam of expander lens 3 and one, before laser
End set with fixed multiplying power expander lens 3, then be adjusted light beam convex lens 4 effect obtain directional light, make directional light
The beam area of the incident beam modulated device 1, reaches the 3-D view that optical modulator 1 is launched to Optical processing system fourier transform lenses group
Beam area.
In the present embodiment, referring to Fig. 1~4, by setting a series of speculums 6 respectively in two sets of light path systems, by light
Road folds and is limited in the range of the correspondingly-sized of the internal structural space of frame 11, and frame 11 uses wear-type component
Structure, utilizes two sets of light path system formation hologram three-dimensional displays.
In the present embodiment, referring to Fig. 1~4, optical modulator 1 uses reflective LCD space light modulator, using 1-
The diffraction of optical modulator 1 of 20 μm of Pixel Dimensions goes out 3-D view of the angle of visual field in 1 ° of -20 ° of scope, it is allowed to Different Individual interpupillary distance
Difference, enters without traditional interpupillary distance adjusting means.The present embodiment is different from traditional light splitting stereoscopic display and body three-dimensional is aobvious
Show, the advantage using the three-dimension virtual reality glasses of principle of holography is that 3-D effect is truer, solve interaction distance with into
Image distance from it is uncoordinated the problem of, and because the hologram angle of visual field presence, it is allowed to the difference of Different Individual interpupillary distance, enter without
Want traditional interpupillary distance adjusting means.The present embodiment by adjusted during computed hologram 3-d reproduction image and human eye away from
From can reach that virtual image is merged well with mutual moved end.
In the present embodiment, referring to Fig. 1~4, the present embodiment hologram three-dimensional virtual reality glasses optical texture includes conduct
The small power single long wavelength laser for reading light source 2, the beam steering devices, the Fourier that are made up of expander lens 3 and a convex lens 4
Leaf lens, speculum 6, Amici prism 5 and LCD space light modulator.It is Amici prism, lens used in the present embodiment, anti-
Component of the mirror using Daheng's photoelectricity production is penetrated, used LCD space light modulator is provided using Holoeyes companies of Germany
Product；Used laser is the product provided by Changchun NPD projects photoelectricity.Imaging optical path is first based on physical three-dimensional collection
Or the threedimensional model of computer generation calculates hologram by principle of holography, hologram is carried on LCD space light modulator
On, the imaging optical path of the present embodiment is first by sending LASER Light Source as the laser for reading light source 2, reading light source 2 passes through light
The light beam of diverging into the light beam of uniform intensity, is switched to collimated light beam by laser beam expanding by beam adjusting apparatus by a convex lens 4,
Light beam switchs to two-beam line by Amici prism 5, wherein a branch of be incident on as light source on another Amici prism 5, at two
Half-wave plate 10 is placed between Amici prism 5, to adjust splitting ratio, another beam is incident on the LCoS screens of LCD space light modulator
On curtain, light launches diffraction on LCoS screens, and the image of diffraction acts on incident convex lens 4 by the transmission of Amici prism 5, and
In the focal point of convex lens 1, place one and filter High-order Image with foraminate diaphragm 9, only retain a low order and most preferably scheme
Picture, places a convex lens 4 again at 2 times of focal lengths of convex lens 4,4f optical systems is constituted, according to the imaging of computed hologram
Distance is different can be presented the hologram image of 3 D stereo in the front different distance of 4f systems, by having one as eyepiece 7
Lens after, into the eyes 8 of people, totally two sets of the light path of the above corresponds to the left eye and right eye of people, 2 width of generation respectively
3-D view will respectively enter the left eye and right eye of people according to the observation habit of people.Due to the size constrained by glasses, it can pass through
Light path folding is being adapted to be made in the space of glasses profile by multiple speculums 6, such as Fig. 4.Referring to Fig. 1~4, the present embodiment is used
The optical texture of hologram three-dimensional virtual reality glasses based on optical modulator, the light path of hologram three-dimensional virtual reality glasses is to be used for
The optical texture of wear-type holographic display device, the projection of hologram three-dimensional virtual reality glasses, which gives people the two images of images of left and right eyes, is all
The true 3-D view of reproducing using holographic technique, light path is included in LASER Light Source and beam steering devices, light path
Reflected light path is integrated in the optical path space of setting, with the window structure that people's right and left eyes are observed is used in light path, passes through setting
The relative position structure of Amici prism 5, optical modulator 1 and reading light source 2 realizes the external circuits system of 4f optical systems in light path
The 4f system filter structures of Fourier transform are used in the establishment of system, light path.The present embodiment light spreads out on LCoS screens
Penetrate, what diffraction went out reads the convex lens 4 that image is f1 by the incident focal length of transmission effect of Amici prism 5, and in convex lens
The focal point of mirror 4, places one and filters high-order picture with foraminate diaphragm 9, only retains a low order optimized image, in convex lens
It is f1+f2 to place the light path between the convex lens 4 that another focal length is f2, two convex lens 4 after mirror 4 again, constitutes 4f optical systems
System.The hologram of 3 D stereo can be presented in the front different distance of 4f systems according to the image-forming range of computed hologram is different
Picture, after having the lens as eyepiece 7, into the left eye and right eye of people, 2 width 3-D views of generation will be according to people's
Observation habit respectively enters the left eye and right eye of people, further, since by the size constrained of glasses, light path system is worn to be adapted to people
Head is worn over, light beam has been subjected to necessary reflection, the portable system of small size is integrated into.The present embodiment holography virtual reality eye
The optical texture of mirror by adjusting the distance of 3-d reproduction image and human eye during computed hologram, can make virtual image with
Mutual moved end is merged well, solves the virtual image and the unmatched problem in mutual moved end of traditional virtual reality glasses.This implementation
Example is not interfere with each other, left eye is identical with the optical texture of right eye in right and left eyes one optical system of each independence, and right and left eyes are imaged
Light path shares a reading light source 2, and takes full advantage of the transmission effect of Amici prism 5.Amici prism 5 and spatial light modulator
The light path of screen makes reading light source 2 first pass through after the reflection of Amici prism 5, then pass through using the characteristic of the half-reflection and half-transmission of Amici prism 5
Cross spatial light modulator and occur diffraction, the holographic images that diffraction goes out are acted on through prism imaging by the transmission of Amici prism 5 again, are
Optical modulator 1 occurs the processing of diffraction and 4f optical systems to light wave progress elimination background miscellaneous light and created conditions.The present embodiment is complete
The reflected light path of breath three-dimension virtual reality glasses is to be adapted to the imaging optical path of glasses manufacture size based on space reflection
Space optical path, the purpose is to while image-forming range is met, Glasses structure is compacter.
In the present embodiment, Fig. 2 is 4f system light paths, and diffraction light is after the reading of optical modulator 1, by convex lens 4,
Focal point places one with foraminate diaphragm 9, and its effect is to filter high-order picture, only retains a low order optimized image, reaches filter
The effect of ripple, the front of lens is presented on by hologram image after another convex lens 4 according to the imaging size for calculating holography
In certain distance, eyepiece 7 is being placed within one times of focal length f of hologram image, the effect of amplification holographic images is reached, it is final complete
Breath image is presented in the range of form 12.
In the present embodiment, Fig. 3 is observation structure, and left and right eye 8 can collect work by lenticular in eyepiece 7 and eyes
Focused on by holographic images on the retina in eyes, reach the purpose for seeing holographic images clearly.
In the present embodiment, Fig. 1 is virtual reality glasses frame structure, inside frame 11, places right and left eyes each
Such as Fig. 3 optical system, hologram image is focused on the retina of wearer person's right and left eyes 8 respectively.Wherein 4f systems such as Fig. 2
It is shown, and in order to while ensureing both to make the light path meet image-forming range, reduce physical dimension again, in 4f systems plus speculum
6 progress are reflective so that complications spatially occur for light path, and making the space availability ratio of device increases.
To sum up, the present embodiment is the optical texture of the holographic virtual reality glasses of the binocular wear-type based on optical modulator, tool
There is 3-D effect true, it is to avoid visual fatigue, unified interaction distance and the advantage for adapting to all interpupillary distances.The present embodiment is with empty
Between a series of optical system of process of computed hologram that goes out of optical modulator diffraction, by real 3 d light fields information in form
In be presented to the eyes of observer, be following holographic virtual reality glasses, the making of holographic augmented reality glasses provides light path and set
The basis of meter.
Embodiment two：
The present embodiment and embodiment one are essentially identical, are particular in that：
In the present embodiment, often set light path system all using the formation imaging optical path of optical modulator 1 of transmission-type, then need not divide
Photo structure, structure is simpler and compact.In the 4f system filter structures using Fourier transform, Optical processing system Fourier
Lens group is constituted by one with foraminate diaphragm 9 and a pair of convex lens 4, and diaphragm 9 is arranged on to Jiao of the convex lens 4 of first
At point, and the convex lens 4 of second are arranged at 2 times of focal lengths of the convex lens 4 of first, 4f optical systems are constituted, from light
The diffraction image light that modulator 1 is launched incides the convex lens 4 of first, then incides by diaphragm 9 convex lens of second
Mirror 4, then by eyepiece 7 enter observer eyes 8, two sets light path systems respectively correspond to people left eye and right eye generate two
Width 3-D view, makes observer see hologram image clearly.Holographic light path structure is applied to the head using principle of holography by the present embodiment
Head mounted displays, simple in construction, holographic virtual reality, small size dynamic holographic display.
Embodiment three：
The present embodiment is substantially the same as in the previous example, and is particular in that：
In the present embodiment, read light source 2 and light source is used as using LED.Light source is made using relatively low power LED,
Device need not be expanded, the security of optical system is improved on the premise of saving the energy.
The embodiment of the present invention is illustrated above in conjunction with accompanying drawing, but the invention is not restricted to above-described embodiment, can be with
Made according to the purpose of the innovation and creation of the present invention under a variety of changes, all Spirit Essence and principle according to technical solution of the present invention
Change, modification, replacement, the combination or simplified made, should be equivalent substitute mode, as long as meeting the goal of the invention of the present invention,
Technical principle and inventive concept without departing from hologram three-dimensional virtual reality glasses optical texture of the present invention, belong to the present invention
Protection domain.
Claims (10)
1. a kind of hologram three-dimensional virtual reality glasses optical texture, it is characterised in that main to include being arranged on frame (11)
In reading light source (2) and two sets of light path systems, power supply powers to read light source (2) and two sets of light path systems, wherein first set
Light path system it is main by with second set of light path system mainly respectively by the 4f system filter structure groups of a set of use Fourier transform
Into the 4f system filters structure of the use Fourier transform is main by optical modulator (1) and Optical processing system fourier transform lenses
Group composition, it is different according to the image-forming range for calculating the hologram image that two sets of light path systems are generated, in corresponding Optical processing system Fu
The hologram image of 3 D stereo is presented in the different distance in the front of vertical leaf lens group, from the different optics 4f of two sets of light path systems
The hologram image emergent ray that system fourier transform lenses group (S) is sent by corresponding eyepiece (7), is launched to the eyes of people respectively
Corresponding image beam, the right and left eyes that two sets of light path systems correspond to people respectively are individually formed corresponding optical system, using complete
When ceasing three-dimension virtual reality glasses optical texture, the three-dimensional mould generated based on physical three-dimensional acquisition method or computer generating method
Type calculates hologram image by holographic imaging method, then hologram image is carried on to the optical modulator of two sets of light path systems respectively
(1) on, the light from the reading light source (2) incides two sets of light path systems respectively with the incident ray of collimated light beam formula
On optical modulator (1), by optical diffraction method, the hologram image on optical modulator (1) is read as into corresponding three-dimensional respectively
Image, the 3-D view of reading is again respectively through Optical processing system fourier transform lenses group in Optical processing system fourier transform lenses group
The 3-D view light wave of middle propagation eliminate the processing of image background veiling glare, filters High-order Image, and retains low order image, so
Afterwards after the corresponding eyepiece (7), hologram image is set to be presented on the different corresponding forms of the right and left eyes observation for people
(12) in the range of, the left and right eye (8) of people is respectively enterd by form (12), the eyes of people is respectively obtained corresponding figure
Picture.
2. hologram three-dimensional virtual reality glasses optical texture according to claim 1, it is characterised in that：Often cover light path system all
Using optical modulator (1) the formation imaging optical path of transmission-type.
3. hologram three-dimensional virtual reality glasses optical texture according to claim 1, it is characterised in that：Often cover light path system all
Using reflective optical modulator (1) formation imaging optical path, beam-splitting structure is provided between two sets of light path systems, is read from described
The light for going out light source (2) switchs to two beam incident rays by beam-splitting structure, respectively as the optical modulator (1) of two sets of light path systems
The incident light source used cooperatively.
4. hologram three-dimensional virtual reality glasses optical texture according to claim 3, it is characterised in that：Two sets of light path system tools
There is identical structure, and share one and read light source (2), the beam-splitting structure is by two Amici prisms (5) and a half-wave plate
(10) beam splitting system is constituted, using the characteristic of the half-reflection and half-transmission of Amici prism (5), reading light source (2) is first passed through Amici prism
(5) reflect, then occur diffraction by optical modulator (1), the holographic images that diffraction goes out are worn by the transmission effect of Amici prism (5) again
The body for crossing Amici prism (5) is imaged, and beam-splitting structure is that the light from the reading light source (2) passes through the first point
Light prism (5) switchs to two beam incident rays, wherein directly incident by the first beam incident ray after first Amici prism (5)
Onto the optical modulator (1) of first set light path system, wherein by the second beam incident ray after first Amici prism (5) after
It is continuous to incide on second Amici prism (5) as secondary light source, secondary light source as second set of light path system optical modulator
(1) reading light source, places the half-wave plate (10) between two Amici prisms (5), is adjusted using the half-wave plate (10)
Splitting ratio.
5. hologram three-dimensional virtual reality glasses optical texture according to claim 1 or claim 2, it is characterised in that：Used described
In the 4f system filter structures of Fourier transform, the Optical processing system fourier transform lenses group is by one with foraminate diaphragm
(9) with a pair of convex lens (4) composition, the diaphragm (9) is arranged on to the focal point of the convex lens (4) of first, and by second
Individual convex lens (4) are arranged at 2 times of focal lengths of the convex lens of first (4), 4f optical systems are constituted, from optical modulator (1)
The diffraction image light of transmitting incides the convex lens (4) of first, then incides by diaphragm (9) convex lens of second
(4) eyes (8) of observer, are then entered by eyepiece (7), two sets of light path systems correspond to left eye and the right eye generation of people respectively
Two width 3-D views, observer is seen hologram image clearly.
6. the hologram three-dimensional virtual reality glasses optical texture according to claim 3 or 4, it is characterised in that：Used described
In the 4f system filter structures of Fourier transform, the Optical processing system fourier transform lenses group is by one with foraminate diaphragm
(9) with a pair of convex lens (4) composition, the diaphragm (9) is arranged on to the focal point of the convex lens (4) of first, and by second
Individual convex lens (4) are arranged at 2 times of focal lengths of the convex lens of first (4), 4f optical systems are constituted, from optical modulator (1)
The diffraction image light of transmitting is acted on by the transmission of beam-splitting structure, incides the convex lens (4) of first, then pass through diaphragm
(9) convex lens (4) of second are incided, the eyes (8) of observer are then entered by eyepiece (7), two sets light path systems divide
Not Dui Ying people left eye and right eye generation two width 3-D views, observer is seen hologram image clearly.
7. the hologram three-dimensional virtual reality glasses optical texture according to any one in Claims 1 to 4, it is characterised in that：
The reading light source (2) uses laser, LED or OLED as light source, when the reading light source (2) uses laser to be used as light source
When, the light from the reading light source (2) is incided respectively by beam steering devices with the incident ray of collimated light beam formula
On the optical modulator (1) of two sets of light path systems.
8. hologram three-dimensional virtual reality glasses optical texture according to claim 7, it is characterised in that：When the reading light source
(2) when launching laser as light source using laser, beam steering devices are by the independent adjustment light beam of expander lens (3) and one
Convex lens (4) composition, the expander lens (3) with fixed multiplying power are set in the front end of laser, then light beam are adjusted
Convex lens (4) effect obtains directional light, makes the beam area of directional light the incident beam modulated device (1), reaches optical modulator (1) to light
Learn the beam area of the 3-D view of 4f system fourier transform lenses group transmitting.
9. the hologram three-dimensional virtual reality glasses optical texture according to any one in Claims 1 to 4, it is characterised in that：
By setting a series of speculums (6) respectively in two sets of light path systems, light path folding is limited in the inside of frame (11)
In the range of the correspondingly-sized of structure space, the frame (11) uses wear-type modular construction, utilizes two sets of light path systems
Form hologram three-dimensional display.
10. the hologram three-dimensional virtual reality glasses optical texture according to any one in Claims 1 to 4, it is characterised in that：
The optical modulator (1) is using LCD space light modulator, acousto-optic modulator or digital micro-mirror spatial light modulator, using 1-
Optical modulator (1) diffraction of 20 μm of Pixel Dimensions goes out 3-D view of the angle of visual field in 1 ° of -20 ° of scope.
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| CN107561710A (en) * | 2017-09-29 | 2018-01-09 | 塔普翊海（上海）智能科技有限公司 | It is a kind of that display system is worn based on three-dimensional laser line holographic projections technology |
| CN108415167A (en) * | 2018-05-16 | 2018-08-17 | 深圳创维新世界科技有限公司 | Wear-type virtual reality shows equipment and automatic adjusting method |
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| CN112596242A (en) * | 2020-12-22 | 2021-04-02 | 上海趣立信息科技有限公司 | Color holographic near-to-eye display method and system based on spatial light modulator time division multiplexing |
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