CN104656259B - The conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly - Google Patents
The conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly Download PDFInfo
- Publication number
- CN104656259B CN104656259B CN201510061159.9A CN201510061159A CN104656259B CN 104656259 B CN104656259 B CN 104656259B CN 201510061159 A CN201510061159 A CN 201510061159A CN 104656259 B CN104656259 B CN 104656259B
- Authority
- CN
- China
- Prior art keywords
- light
- volume holographic
- holographic grating
- component
- conjugation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G02B27/0103—Head-up displays characterised by optical features comprising holographic elements
-
- 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
- G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
-
- 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
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
The invention provides a kind of conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly, including image display light source, there is provided for the image information observed；P＆S light converts component, realizes the conversion of P light and S light；Collimation lens set, carries out collimating to light wave, PBS polarization spectro components, carries out polarization spectro to light wave；Light splitting selects component, light wave is equably covered on coupling-in face；Conjugation three primary colours are staggered and couple input volume holographic grating, disperse incident ray light is transmitted in substrate interior total reflection；Guide-lighting transferring substrate, carries out total reflection propagation to light wave；Conjugation three primary colours are staggered and couple output volume holographic grating, scattered incident ray is sequentially coupled and is exported to outside substrate.The present invention has the advantages that full-color, the ultra-thin, angle of visual field is big, process is simple is easy and realizes, can be used to move the fields such as the harmless display of screen, terminating machine show, doctor's on-the-spot teaching is instructed, fire-fighting and rescue real time information positioning, 3D game.
Description
Technical field
The present invention relates to a kind of nearly optics of the eye display device, particularly a kind of conjugation arrowband three primary colours volume holographic light staggeredly
Lattice wave leads nearly optics of the eye display device.
Background technology
Need the information for browsing increasing in living at present, occurred as soon as therewith it is various can be by the side of information centralized displaying
Formula.But the presentation of information amount of these equipment is limited, and the health of people can be caused damage, especially the vision of beholder can be made
Into the infringement that cannot be made up.Therefore, in order to concentrate easily carry out grasping to enriching numerous and diverse image information, analyze and
Guarantee the protection to beholder's vision, nearly optics of the eye display system is used as the wearable display for being capable of the above-mentioned objective of perfection embodiment
Part arises at the historic moment.In order to embody the theory of augmented reality and liberation both hands, optical display device is worn by optical element
At a certain distance from image information is virtually included in front of human eye, so facilitate the wearer can be with while information is browsed
The change of surrounding scenes is observed so as to impact to wearer's normally performed activity mode.It is this for real enhancement mode
Wearable optical display device, usually requires that display system has full-color, big visual field and frivolous effect.Previous nearly eye
Display Technique has also having based on planar waveguiding structure based on grating waveguide structure, both concepts and realization hardly possible in technology
There is very big difference on Yi Du.Based on the nearly optics of the eye Display Technique of grating waveguide structure, can be in the volume of waveguide and weight
Good effect is reached in terms of the expansion of amount and visual field, but big multi-scheme is all rested in the display level of monochrome at present,
Main cause be for full-color display, due to the restriction of the bandwidth and grating technological level of three primary light source spectrum itself,
Cause the mutual crosstalk of final Show Color, it is impossible to which clearly indicating needs the image information of viewing.But for monochromatic display,
The interference of other two kinds of colors can be neglected, therefore with good display effect, but which also limits the nearly eye of grating and show
Show the extensive application of technology.And the Display Technique based on planar waveguiding structure, presently mainly using 45 ° of reflective mode realities
It is existing, although can to reproduce full-color image information, but the nothing in terms of the expansion of volume and weight and visual field that waveguide shows
Method obtains one and balances well.
Always such nearly optics of the eye is shown for this full-color, frivolous, big visual field, cramped construction and high-resolution image
System key issue urgently to be resolved hurrily, wherein the thickness of crucial display optics, weight and big visual field are particularly important.At some
Application, the size of the contrast and observation field range of image directly influence the integrity of the safety and information of personnel
Judgement, while the overall weight of display system all has a great impact for the comfort level of the personnel of wearing.
In order to solve the series of problems that tradition wearing display optical system weight and visual field and color cross-talk etc. are brought,
A kind of Display Technique scheme, this side are provided in United States Patent (USP) US7736006B2 of Micro Vision companies of U.S. application
Case allows the S light catoptric imagings of wide-angle using polarization substrate realizing the conversion of optical polarization, and low-angle P light is completely saturating
Reflecting surface is crossed, the shortcoming of this kind of scheme is due to using wide-angle S light reflected P light transmission, causing reflective output face at substrate bottom
The projected area in face is too small and is unfavorable for the extension of visual field, while increase the difficulty of design, and then cause the thickness of device without
Method is lightening.United States Patent (USP) US20100260455 adopts micro- broached-tooth design, is extended the display visual field of device, but
The overall thickness of device is not reduced, furthermore the cosmetic look of the entirety of device is bad, and the comfort brought to wearer is not
Foot.In United States Patent (USP) US7021777, the extension and display of display device visual field are realized using the method for light conductive plates
Device it is lightening, but in this technical scheme to implement difficulty in terms of the specific design of device and technique processing very big,
Furthermore limited for the spreading range for showing visual field, these factors cause device to be unfavorable for large-scale production.Above-mentioned patent is carried
Although to the nearly optics of the eye display system of slab guide make moderate progress in terms of the expansion of weight, volume and visual field,
In diopter regulation on no substantial change.
The content of the invention
In order to solve the above problems, the invention provides a kind of three primary colours volume holographic grating waveguide staggeredly in conjugation arrowband is near
Optics of the eye display device.
In order to achieve the above object, present invention employs following technical scheme：
A kind of conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly, it is characterised in that：According to
It is secondary including：Image display light source, for providing the image information for observing；P＆S light converts component, for realizing P polarization light
With the mutual conversion of S-polarization light；Collimation lens set, for collimating to light wave；PBS polarization spectro components, for from
The light wave of image display light source carries out polarization spectro；Light splitting selects component, in order that light wave is equably covered in coupling-in face
On；Conjugation three primary colours are staggered and couple input volume holographic grating, for disperseing incident ray and enabling light complete to meet
The condition of reflection is transmitted inside guide-lighting transferring substrate；Guide-lighting transferring substrate, for carrying out total reflection propagation to light wave；Altogether
Yoke three primary colours are staggered and couple output volume holographic grating, pass to guide-lighting for scattered incident ray is sequentially coupled output
Outside defeated substrate.Wherein image display light source is located at the right side of guide-lighting transferring substrate, and PBS polarization spectros component is located at display light source
, respectively there is a P＆S light conversion component lower section in the lower section and right of polarization spectro component, respectively has thereafter a collimation lens set,
P＆S light splitting selects component then positioned at the left side of polarization spectro component, and conjugation three primary colours are staggered and couple input volume holographic grating
Input and the outgoing position of guide-lighting transferring substrate are located at coupling output volume holographic grating then.The present invention mainly adopts conjugate lens picture puts
The realization of the staggered reflective volume holographic grating of three primary colours put and plane leaded light substrate.Its basic functional principle is image
The light of display light source is entered in PBS polarization spectro components, first come from the S light of light source by the reflection of polarization spectro component and
P＆S light converts the conversion of component, makes S light be changed into P light and enters collimation lens set, then through the collimated reflected of collimation lens set,
S light is changed into into P light from light conversion component again, the reflecting surface for being then directed through PBS polarization spectro components enters light splitting selection group
Part.For the reflecting surface that the P light from light source is then directed through PBS polarization spectro components is entered in P＆S light conversion component, pass through
The conversion of conversion component makes P light be changed into S light to enter collimation lens set, then through the collimated reflected of collimation lens set, then by turning
Change component and P light is changed into into S light, being reflected in light splitting selection component through PBS polarization spectro component reflectings surface.By dividing
Light selects the conjugation three primary colours that are covered in that the half-reflection and half-transmission of component makes to come the uniform light of self-focus lenses to be staggered coupling
In input volume holographic grating, it is input into volume holographic grating and can then disperses incident ray and enable light to meet the condition of total reflection
Be transmitted inside guide-lighting transferring substrate, transmission certain distance after light can reach conjugation three primary colours be staggered coupling output
Volume holographic grating, coupling output volume holographic grating can be scattered incident ray coupling outputs to outside guide-lighting transferring substrate.Two
Volume holographic grating has identical space periodic, and is made up of same microstructure spectrum groupware periodic arrangement, wherein often
Individual micro structure is made up of cycle different RGB Volume Bragg gratings and is arranged into order.By using volume holographic grating pair
Into trichroism narrow-band spectrum according to the arrangement of micro structure carry out dispersion make its be transferred in guide-lighting substrate coupling output body light
At grid, as coupling output body grating and coupling input grating are that conjugation is placed, therefore scattered light can be entered again
Row combination so as to coupled according to the direction being coupled into again and exported to outside substrate.
The nearly optics of the eye display device of waveguide that the present invention is provided, also with following features：PBS polarization spectros component can make
There is transmitting in S-polarization light at reflecting surface, and make P polarization light wholly transmissive.
The nearly optics of the eye display device of waveguide that the present invention is provided, also with following features：P＆S light splitting selects component to have half
Anti- semi-transparent property.
The nearly optics of the eye display device of waveguide that the present invention is provided, also with following features：Coupling input volume holographic grating and
Coupling output volume holographic grating has identical space periodic, and presses periodic arrangement group by identical micro structure spectrum groupware
Into each micro structure is made up of cycle different RGB Volume Bragg gratings.
The nearly optics of the eye display device of waveguide that the present invention is provided, also with following features：Coupling input volume holographic grating and
Coupling output volume holographic grating is placed on input and the outgoing position of guide-lighting transferring substrate with the position of conjugate lens picture.
The nearly optics of the eye display device of waveguide that the present invention is provided, also with following features：Composition coupling is input into and couples defeated
Interval between the interval gone out between the micro structure of volume holographic grating and each R, G, B body grating of composition micro structure all should be big
In the wavelength dimension of imaging, color cross-talk is to avoid, affect the resolution of final observation image.
Compared with existing optical display device, the invention has the beneficial effects as follows full-color, ultra-thin, the big angle of visual field, optics knot
Structure and processing technique are simply easily realized, while imaging system reduces than common imaging guides system in terms of volume and weight
It is a lot.Under identical volume, the imaging system angle of visual field of the present invention is bigger, and manufacturing process is more simple, cost is less expensive,
Simultaneously to compare traditional imaging system structure compacter, compact for the present invention.Optical display device of the present invention can be used for movement and regard
It is all that the screen harmless display of human eye, terminating machine show, doctor's on-the-spot teaching is instructed, fire-fighting and rescue real time information positioning, 3D play etc.
It is multi-field.
Description of the drawings
Fig. 1 is that the structure of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly is shown
It is intended to；
Fig. 2 is that RGB overlaps holographic grating planar waveguide optical device schematic diagram；
Fig. 3 is that RGB separates holographic grating planar waveguide optical device schematic diagram；
Fig. 4 is 45 ° of planar waveguide optical display device schematic diagrams；
Fig. 5 is the volume holographic of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Optical grating construction schematic diagram；
Fig. 6 is the volume holographic of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Grating microstructure schematic diagram；
Fig. 7 is that the input of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly is defeated
Go out grating conjugation schematic diagram；
Fig. 8 is the collimation knot of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Structure schematic diagram；
Fig. 9 is the structure ginseng of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Number schematic diagram；And
Figure 10 is the intelligence of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Wearing binocular application schematic diagram.
Specific embodiment
The specific work process of the present invention is described below in conjunction with accompanying drawing.
Fig. 1 is that the structure of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly is shown
It is intended to.As shown in figure 1, the system composition of the present invention includes image display light source 10, P＆S light conversion component 11, collimation lens set
12nd, PBS polarization spectros component 13, light splitting selects component 14, conjugation three primary colours to be staggered and couples input volume holographic grating
15th, guide-lighting transferring substrate 16, conjugation three primary colours are staggered and couple output volume holographic grating 17.The light of image display light source 10
Line enters PBS polarization spectros component 13, first comes from the reflection and P＆S light conversion of the S light by polarization spectro component 13 of light source
The conversion of component 11, makes S light be changed into P light into collimation lens set 12, then through the collimated reflected of collimation lens set 12, then by
S light is changed into P light by light conversion component 11, and the reflecting surface for being then directed through PBS polarization spectros component 14 enters light splitting selection group
Part 14.Convert in component 11 into P＆S light for the P light from light source is then directed through 13 reflecting surface of PBS polarization spectros component,
Conversion through converting component 11 makes P light be changed into S light into collimation lens set 12, then anti-through the collimation of collimation lens set 12
Penetrate, then P light is changed into into S light from conversion component 11, select through the light splitting that is reflected into of 13 reflecting surface of PBS polarization spectros component
In component 14.Select what the half-reflection and half-transmission of component 14 made the uniform light come self-focus lenses to be covered in conjugation three by light splitting
Primary colours are staggered in coupling input volume holographic grating 15, and input volume holographic grating 15 can then disperse incident ray and make light
Can be transmitted inside guide-lighting transferring substrate 16 with the condition for meeting total reflection, after transmission certain distance, light can be reached altogether
Yoke three primary colours are staggered and couple output volume holographic grating 17, and coupling output volume holographic grating 17 can be scattered incident ray
Coupling output is to outside guide-lighting transferring substrate 16.Two volume holographic gratings have identical space periodic, and are by same microstructure
Spectrum groupware periodic arrangement composition, wherein each micro structure be made up of cycle different RGB Volume Bragg gratings and
Arrange into order.By dispersion being carried out according to the arrangement of micro structure to the trichroism narrow-band spectrum for entering using volume holographic grating make which
It is transferred in guide-lighting substrate at coupling output body grating, as coupling output body grating and coupling input grating are that conjugation is placed
, therefore combination can be re-started to scattered light so as to output is coupled again to substrate according to the direction being coupled into
Outward.
The present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly is made up of eight parts,
For concrete application can be extended accordingly to each ingredient of the present invention, specifically should so as to further improve the device
With the potentiality of aspect, corresponding illustrative explanation is given in the effect below for eight parts in the present invention：
Image display light source 10 is mainly used in providing the image information for observing.For nearly optics of the eye display device, examine
Consider weight, volume and the image information in order to abundant exquisiteness is provided to observer of integral display system, generally adopt
Image information is provided with the display chip of miniaturization.For the present invention, in order to be avoided as RGB is trichroism staggeredly as far as possible
Cause color cross-talk in arrangement volume holographic, thus for the three primary colours monochromaticity of display light source require it is higher, i.e., using bandwidth compared with
Narrow display source is used as image display light source.The miniature sizes image display light source of main flow has Lcos, LCD, OLED etc. at present.By
In the difference of concrete application scene, which is made to tend to miniature in order to be optimized to the structure of integral display system in volume
Change, at the same uniformity in view of light source each point brightness, output light efficiency, restriction of brightness requirement and resolution and size etc. because
Element, generally select that volume is suitable, brightness uniformity, high resolution light source as micro display system display light source, such as Lcos.It is right
In liquid crystal on silicon Lcos, marked difference present on different types of display chip its resolution, such as with the CS-Lcos of size
Micro display screen its resolution of series is usually above CF-Lcos series, but design and the structure of CS-Lcos light engines
Product is compared CF-Lcos and wants complicated and big many, it is therefore necessary to according to specific application with technology needs selecting.Furthermore due to silicon
Base fluid crystalline substance uses reflective illumination and shows realizing image, therefore can choose the preferable LED light source conduct of monochromaticity
The light source of illuminator, so can fundamentally to improving the monochromaticity in display source.For higher display environment is required, can
To make the monochromaticity of light source be further improved by increasing optical filter, while launching in view of different display systems
Light wave polarization state it is different, in order to meet the requirement of diffraction efficiency, optical design and Film Design etc., it will usually showing
Biasing mating plate before light source, for changing the polarization state of the light wave from display system and improving the monochromaticity of display light source.
P＆S light conversion component 11 is used to realize the mutual conversion of P polarization light and S-polarization light.For the P from PBS components
Light or S light, in order to ensure can be with the reflecting surface of without hindrance transmission PBS component or quilt after the collimation of collimating lens
The reflective surface of PBS components, it is therefore desirable to which the transition components such as half-wave plate of corresponding P light and S light is realizing this function.Cause
The direction of vibration of the polarized light through wave plate can be changed accordingly for half-wave plate, such that it is able to occur P light and S light
It is corresponding to convert.
Collimation lens set 12 is mainly collimated to light wave.For the use of collimation lens set of the present invention, on the one hand it is
In order that light, is on the other hand then because in head so as to ensure the quality of final display image according to the requirement transmission of design
Wear in display application, human eye is final graphical information accepter, it is therefore desirable to which the light wave from image display light source is carried out
Process to reach the actual requirement that human eye freely loosens viewing.In order to realize this effect, optical spherical lens pair are generally utilized
The light wave that display light source sends is collimated, but due to the presence of optical aberration, such as astigmatism, distortion, the curvature of field, coma
Deng causing image contrast after single lens seriously to reduce, be this for collimating lens need to carry out according to application requirement
Strict aberration correction, to reaching final preferably imaging effect, can otherwise affect the final resolution of light optic system,
Picture quality when causing human eye directly to be observed changes, and makes human eye clearly watch good image information.It is general
Logical coquille is generally corrected using the different lens combinations different with local curvature of several pieces of refractive indexs in aberration correction, this
The weight and volume for virtually making system overall increases, and is that this is completed generally using the method for aspherical mirror and coquille combination
The correction of aberration.As single aspherical mirror just eliminates a certain kind of aberration when aberration is corrected, so as to give the overall structure of system
Frame and weight bring very big benefit, furthermore in view of the development of contemporary optics process technology, free form surface technology is also introduced into
Arrive in aberration correction, therefore requirement that traditional optical is miniaturized in volume can have been realized with reference to free form surface technology.
PBS polarization spectros component 13 is for carrying out polarization spectro to the light wave from image display light source.In order that this
Funerary objects part is operationally, it is ensured that the track of light is carried out according to specific optical design requirements, it is therefore desirable to from image
The light wave of display light source carries out polarization spectro.PBS polarization spectros component 12 can make P light waves break-even wholly transmissive, and to S
Light wave is reflected accordingly.S light and P light from light source is allow respectively according to corresponding by using PBS spectrum groupwares
Design requirement gives and collimates, and can so improve the utilization rate of energy of light source and simplify the difficulty for designing, while one can be entered
Step improves the monochromaticity for entering guide-lighting substrate polarized light.
It is in order that light wave is equably covered on coupling-in face that light splitting selects the purposes of component 14.P＆S light splitting is selected
Component 14 can be made up of a PBS component and 45 ° of internal reflection prisms, or 45 ° of spectrum groupwares and an internal reflection
Prism is constituted, specific to select to need according to the polarization state of light source to determine.If light source is the light source of non-linear polarization, due to
The energy of P light and S light is equal, can adopt PBS components and 45 ° of reflecting prism compositions, if light source is line polarized light light source, must
45 ° of spectrum groupwares and internal reflection prism must be adopted to constitute, can so remain that light-wave energy is uniform in coupling-in face
Distribution, the image planes brightness disproportionation one for not resulting in final output image or the appearance for causing display image image planes dark space.
Conjugation three primary colours are staggered coupling input grating 15 for disperseing incident ray and enabling light complete to meet
The condition of reflection is transmitted inside guide-lighting transferring substrate.For the light from colimated light system, due to being directly entered waveguide
After system, which is low-angle acute angle with the angle of waveguide horizontal plane normal, leads to not transmit in guide-lighting transferring substrate.
In order to be traveled in the waveguide up to the position for needing output, it is therefore desirable to which it is complete that corresponding mode meets light
Conditioned reflex makes which loss-free in guide-lighting substrate be transmitted.Reflective volume holographic grating is due to making with light splitting
With, the light for meeting Bragg condition can be made to be able to light splitting so that its meet total reflection condition in guide-lighting substrate pass
It is defeated.
The rapidoprint of guide-lighting transferring substrate 16 has many kinds, such as glass material JGS1, JGS2, K9, BK7 etc., plastics material
Material has PET, PMMA etc..Due to refractive index, the abbe number difference of every kind of material, cause the transmission of the cirtical angle of total reflection, material
Rate, absorptance and vary in weight.In view of the restriction of practical application condition and processing technique, needs enter according to specific requirement
Row is selected.Need to meet the condition of total reflection when light wave is propagated in the substrate, to ensure that light does not reflect substrate, while should
Absorption of the material to light-wave energy itself is reduced as far as possible, and substantial amounts of light-wave energy can otherwise lost and shadow in transmitting procedure
Ring the visibility and contrast of image.Planar substrate material limits the scope of the image for transmitting in the substrate in itself in addition,
In order to expand the scope of transmission image, generally the film layer of certain reflectance is plated as desired or from high folding in substrate surface
The glass material of rate is penetrated, and certain extension is given to the angle of total reflection of material.For this purpose, the material of slab guide substrate is generally selected
Possess the optical material of appropriate index, transmitance and mechanical performance, such as plastics acrylic PMMA.And plastics acrylic PMMA
（nd=1.49）The cirtical angle of total reflection be 42.2, higher than general K9 glass（nd=1.52）The cirtical angle of total reflection 41.8, separately
The lighter in weight of outer PMMA, for the K9 glass and PMMA plastics of equal volume, the weight of PMMA is the half of K9 glass, this
Advantage can be used to mitigate the weight that wearing shows application apparatus.
Conjugation three primary colours be staggered coupling output volume holographic grating 17 scattered incident ray is sequentially coupled output
To outside guide-lighting transferring substrate.The light transmitted in guide-lighting substrate is the light after coupling input volume holographic grating light splitting
Line, which meets the propagation of total reflection condition in guide-lighting substrate, in order to make its coupling output to outside substrate, and ensures figure
The quality of picture, the present invention, can using the volume holographic grating with the same space cycle placed is conjugated as coupling output precision
To give corresponding compensation to the aberration that coupling input volume holographic grating causes, so as to ensure that final display to the full extent
The quality of image.Furthermore due to transmission ray output holographic grating in only in corresponding RGB volume holographic units ability
Enough diffraction, therefore do not reach the light of diffraction conditions and continue to propagate in the waveguide and carry out re-diffraction, so that light is effective
Output aperture has obtained greatly extending, and has further expanded the field range of observation, allows the viewer to enough acquisitions from display
The full detail in source.
The job step of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly with
And exemplary application：
Fig. 2 is that RGB overlaps holographic grating planar waveguide optical device schematic diagram.As shown in Fig. 2 individual complete based on RGB tri-
The nearly optics of the eye display device of a kind of reflective volume holographic grating of breath grating superposition, its coupling input grating group Input-
Gratings is sequentially overlapped in vertical direction by three volume holographic gratings and is formed.It is topmost the volume holographic to arrowband HONGGUANG light splitting
Grating R-I, centre are the volume holographic grating B-I to blue light light splitting, and bottom is the volume holographic grating G-I to green glow light splitting.For
Three volume holographic gratings can be made to carry out light splitting to RGB light respectively, while the crosstalk between color is reduced as far as possible,
The screen periods of three volume holographic gratings are all different.It is full according to set path in guide-lighting substrate through the light of light splitting
The coupling that travels to of sufficient total reflection condition is exported at volume holographic grating group Output-Gratings.Coupling output volume holographic grating
Group is equally to be overlapped mutually successively to form by three volume holographic gratings in vertical direction, is topmost the body to arrowband HONGGUANG light splitting
Holographic grating R-O, centre are the volume holographic grating B-O to blue light light splitting, and bottom is the volume holographic grating G- to green glow light splitting
O.The cycle of three gratings is identical with the screen periods of coupling input grating group, and difference is coupling input grating group
Place with coupling output grating composition conjugate lens picture.Therefore coupling output volume holographic grating group is entered through guide-lighting substrate transport
R, G, B light keeps and couples input radiation direction identical spatial distribution and be output to through coupling output grating diffration
Outside guide-lighting substrate.Although such scheme can realize full-color image information display, due to the RGB volume holographic grating cycles
It is each different, cause light input and output to be coupled to the hologram layer diffraction of different colours, will so cause the appearance of ghost image.
In Fig. 2, light Ghost-B and Ghost-B due to coupling output when, coupled by adjacent volume holographic grating, so as to
Cause the original direction of propagation to be deviate from output, have impact on final image displaying quality.This kind of reflective volume holographic
Grating technology to a great extent due to the superiority of scheme itself, is limited the crosstalk of color, but this kind of
Complexity is higher in realization for technology, and manufacturing process difficulty is larger.
Fig. 3 is that RGB separates holographic grating planar waveguide optical device schematic diagram.As shown in figure 3, detached using three
Penetrate formula volume holographic optical display device R-HOE, B-HOE, R-HOE and can realize individual transmission arrowband image display information.From
HONGGUANG shows that the light R-source in source enters during the guide-lighting substrate R-HOE being totally reflected is met in the presence of R-I volume holographic gratings
Row transmission, by being transferred to up at coupling projection volume holographic grating R-O, through the diffraction of volume holographic grating, is coupled out lining
Bottom R-HOE.It is similar, show that the light in source is complete in G-O bodies respectively from the light G-source in green glow display source and from blue light
It is transmitted under breath grating and G-O volume holographic grating diffractions and exports Dao substrate G-HOE and B-HOE outside.As this kind of scheme is adopted
It is transmission-type volume holographic grating, the volume holographic grating diffraction bandwidth for causing diffraction bandwidth ratio reflective is larger, therefore color
Crosstalk is obvious, and then causes final image information contrast and resolution ratio poor, but this scheme is in technique
It is simpler than reflective volume holographic grating.
Fig. 4 is 45 ° of planar waveguide optical display device schematic diagrams.As shown in figure 4,45 ° of traditional planar waveguide opticals show
Show device mainly by coupling-in face Surf-input, guide-lighting substrate upper and lower surface Surf1 that is parallel to each other and Surf2, couple it is defeated
Appear Surf-outputComposition.It is identical with the direction in space of coupling output in order to ensure the direction in space for coupling input light, show
Each parameter of system need to meet some requirements, as follows：
β-145=45°
Wherein, β-145For coupling-in face Surf-inputWith the angle of substrate lower surface Surf2.
β-245=45°
Wherein, β-245For coupling-out face Surf-outputWith the angle of substrate top surface Surf1.
After substrate is entered from the light beam 40 of the same object point of display light source, through coupling-in face Surf-inputIt is anti-
Penetrate, make light 40 and the angle of substrate top surface normal be more than the cirtical angle of total reflection, so as to continue shape in the substrate to reflect
Formula is transmitted.Light beam is in the substrate through being transferred to up to coupling-out face Surf-output, through coupling output reflection face Surf-output
Reflection, a part of light reflects substrate according to the requirement of optical design and forms imaging beam 41, and a part of light reflects
Optical waveguide substrates form imaging beam 42.Although light beam 41 and light beam 42 are produced after the light beam catadioptric of same object point
, but through the reflection of output face, the direction in space of light beam 41 and 42 occurs in symmetrical fashion, becomes two, space object point and sends out
The light for going out, causes the appearance of ghost and affects the definition of original image.Furthermore in order to expand observation visual field, need increase to lead
Realizing, the overall weight for causing display system is increased the thickness H-45 of light substrate by this, needs to expand using new visual field for this
Open up frame mode to substitute, to mitigate the weight of system.
Fig. 5 is the volume holographic of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Optical grating construction schematic diagram.As shown in figure 5,50 be the stagger cycle arrangement volume holographic grating floor map, volume holographic grating by
Micro structure 52 repeats to constitute.The three primary colours stagger cycle volume holographic grating 51 of arrangement is made up of eight micro structures, and each micro- knot
Structure 52 is made up of RGB micro units again.Formed between the construction unit caused in order to avoid the distance between microstructure unit is narrow
The secondary light splitting effect of new periodicity, the general wavelength dimension for keeping the distance between micro structure to should be greater than imaging, such as
200um.By keeping this gap, can both avoid secondary light splitting from causing the problem of color cross-talk, and processing can also have been improved and set
The feasibility of meter.
Fig. 6 is the volume holographic of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Grating microstructure schematic diagram.The volume holographic reflective gratings structure of the present invention is formed using microstructure unit repeatability arrangement, and
Each micro structure is staggered by RGB microbody holographic grating units again and is constituted.In Fig. 6, Micro-unit is a microstructure unit
Figure, in figure, micro structure is by three groups of cycles different RGB micro unit volume holographic grating structure compositions.60 is volume holographic grating micro structure
An enlarged drawing, it can be seen that micro structure is made up of tactic rgb light grid, wherein R-VBG gratings be mainly used in come
Light splitting is carried out from the HONGGUANG of display light source, is the periods lambda of this R-VBG volume holographic grating-RShow that with HONGGUANG the centre wavelength in source should
Meet Bragg condition i.e.：
λRed=2n（Λ-R）sinθ
For G-VBG gratings, it is mainly used in carrying out the green glow from display light source light splitting, therefore its diffraction periods lambda-G
With green glow show source centre wavelength must Bragg condition be：
λGreen=2n（Λ-G）sinθ
For B-VBG gratings, it is mainly used in carrying out the blue light from display light source light splitting, therefore its periods lambda-BAnd indigo plant
Light show source centre wavelength similarly must Bragg condition be：
λBlue=2n（Λ-B）sinθ
Wherein, θ is the Bragg angle for meeting condition, and n is the refractive index of grating material.For identical Prague angle of incidence
The RGB light of θ, due to the difference of central wavelength lambda, in order to ensure the identical of the angle of diffraction after its diffraction, is every in this micro structure
The cycle of individual R, G, B volume holographic grating is different.So as to meet the situation of Bragg condition to the RGB light from collimator assembly
Under can carry out light splitting.Furthermore as the angle of diffraction and angle of incidence and Bragg angle meet formula below：
θ=（θs- θr）/ 2
Wherein, θrFor the angle of incidence of light, θsFor the angle of diffraction of diffracted ray.Therefore for the RGB with identical angle of incidence
Light, by the difference for making the RGB volume holographic grating cycles in its micro structure, it is ensured that the angle of diffraction it is identical, and then ensure
Diffracted ray can meet the propagation of the condition that is all-trans in guide-lighting substrate interior.For the diffraction light wave for meeting Bragg condition, its
Light in the angle of reflection of guide-lighting substrate interior is：
θc=180 ° of-θs
Wherein, θcFor diffracted ray substrate interior angle of reflection, θcIt is lossless under conditions of the substrate cirtical angle of total reflection
Transmit in substrate interior.By making micro structure repeatability arrangement, and microstructure portion adopts cycle different RGB volume holographic gratings
Design coupling input and output volume holographic grating, on the one hand on color cross-talk is avoided has very big improvement, comes from micro structure
RGB holographic gratings are periodically arranged, and the probability for making RGB light diffracted in other holographic structures is reduced, the opposing party
The complexity of the previously manufacturing process that superposition grating is caused is compared in face, the volume holographic knot of RGB cycle staggerings arrangement in micro structure
Structure makes processing technology obtain very big simplification.Furthermore in order to avoid due in microstructure unit between R, G, B volume holographic grating group
Due at a distance of the color cross-talk for closely causing very much light splitting to cause, therefore it is required that R, G, B volume holographic grating group interval Λ-Λ should be greater than into
As the wavelength dimension of light, such as 100um.
Fig. 7 is that the input of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly is defeated
Go out grating conjugation schematic diagram.In order to ensure that the light for being input into diffraction can accurately be output to leaded light after propagating in the waveguide
Substrate exterior and the visual field of extension observation, give certain benefit simultaneously for the aberration introduced by coupling input volume holographic grating
Repay, so that improving the display quality of image, present invention employs the conjugated body holographic optical with the repeatability arrangement of micro structure RGB
Grid are respectively as input and export structure.As shown in fig. 7,70 are input into volume holographic grating micro structure enlarged diagram to couple, 71
For coupling output volume holographic grating micro structure enlarged diagram.As seen from the figure, the micro structure of coupling input volume holographic grating
The microstructure unit 73 of unit 72 and coupling output volume holographic grating is that conjugate lens picture is placed, in coupling input microstructure unit
In, RGB volume holographic gratings unit is arranged into RGB, is arranged into BGR in coupling output microstructure unit.For coming auto-collimation system
RGB light R-i-ray, G-i-ray, B-i-ray light of system respectively enters the micro structure list of coupling input volume holographic grating 70
In unit 72, through the diffraction of corresponding RGB volume holographic gratings so as to meet total reflection condition and enter transmission in guide-lighting substrate.
Transmitted by the light path of certain distance, it is defeated that light R-i-ray, G-i-ray, B-i-ray light respectively enters the coupling of conjugate lens picture
Go out in the microstructure unit 73 of volume holographic grating 71, through the diffraction again of corresponding RGB volume holographic gratings, light R-o-
Ray, B-o-ray, G-o-ray keep and couple the defeated of input light R-i-ray, G-i-ray, B-i-ray isospace direction
Go out to outside guide-lighting substrate, therefore couple the conjugate lens picture of input volume holographic grating and coupling output volume holographic grating to place from basic
On ensure that the Space Consistency of input and output radiation direction.For the above-mentioned light wave that disclosure satisfy that direct diffraction, can pass through
Coupling output volume holographic grating diffraction, it is impossible to meet diffraction conditions light continue in the substrate transmission carry out re-diffraction.
In Fig. 7, the light B-i-ray and B-i-ray-1 from light source is through coupling input volume holographic grating B volume holographic grating groups
Diffraction so as to which the carrying out for meeting condition in the substrate is propagated.Coupling output volume holographic grating in, due to light B-i-ray it is first
First meet with B volume holographic gratings, thus meet diffraction conditions it is diffracted go out substrate, and light B-i-ray-1 does not have and light
B-i-ray diffraction in same B gratings group, thus continue coupling output volume holographic grating in spread out of, until with B volume holographics
Grating meets and diffraction formation light B-o-ray-1 occurs, and so as to expand effective output aperture of light, obtains observation visual field
Extension, it is ensured that observer is able to observe that the complete image information from the source of display.
Fig. 8 is the collimation knot of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Structure schematic diagram.For the present invention, as the polarization state of light wave is different and then causes the diffraction efficiency for coupling input light different,
The polarization state of light wave that therefore must be to being coupled into carries out strict differentiation and has reached optimal effect.Based on S light
Light source is necessary that carrying out corresponding process makes its polarization state reach more preferably, therefore using the structure shown in right figure in Fig. 8, comes
After entering in PBS polarization spectros component 86 from the light of light source S-Source, light S-Beam is directly reflected by PBS components 86
Meet with half-wave plate 85, as half-wave plate 85 can make the direction of vibration of polarized light change, so that S light is changed into P light,
P light through collimating lens 84 collimation and reflection be changed into S light and be reflected in half-wave plate, then P light and PBS are changed into from S light
Reflecting surface meets, and as PBS can ensure that P light is transmitted, therefore collimated P light is directly entered in light splitting selection component 87.
The half-reflection and half-transmission effect of component is selected by light splitting, makes the light P-Beam-1 of the P light of output be uniformly covered on coupling input
Face surface, ensures that the homogeneity of final coupling output image image planes brightness.The similar light source for based on P light equally must
Carrying out corresponding process makes its polarization state reach more preferably, therefore the structure in Fig. 8 shown in left figure, from light source P-
After the light of Source is entered in PBS polarization spectros component 82, light P-Beam is directly transmitted and half by PBS spectrum groupwares
Wave plate 80 meets, as half-wave plate 80 can make the direction of vibration of polarized light change, so that P light is changed into S light, S light
Through collimating lens 81 collimation and reflection be changed into P light and be reflected in half-wave plate, then the anti-of S light and PBS is changed into from P light
The face of penetrating is met, and as PBS can ensure that S light is reflected, therefore collimated S light is directly entered in light splitting selection component 83.It is logical
The half-reflection and half-transmission effect that light splitting selects component is crossed, makes the light S-Beam-1 of the S light of output be uniformly covered on coupling-in face
Surface, ensures that the homogeneity of final coupling output image image planes brightness.
Fig. 9 is the structure ginseng of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Number schematic diagram.In order to ensure that coupling distribution of the input and output light on direction in space is consistent and can carry out aberration
Compensation is corrected, therefore the dependency structure parameter of RGB volume holographic gratings and guide-lighting substrate should meet some requirements, so as to most
Ensure the quality of output image in big degree.In the present invention in order that each structural parameters meet corresponding requirement, with point on axle
The axial principal ray for sending carries out the determination of each parameter for reference ray, therefore the corresponding relation of each parameter is：
β-TR = θc
Link-Distance = 2N(WG-Height*tan(β-TR))
W-HOE =2*W-45
Wherein, β-TRFor axial principal ray and the angle of guide-lighting substrate floor normal, WG-HeightFor the thickness of guide-lighting substrate,
Link-DistanceFor the distance between coupling input volume holographic grating left end and coupling output volume holographic grating right-hand member, W-45To divide
Light selects the width of component single component, W-HOEFor the length of coupling input volume holographic grating.N is positive integer, its value desirable 1,2
Deng.
Show to further illustrate the nearly optics of the eye of the staggered volume holographic grating waveguide of present invention conjugation arrowband three primary colours
Show the course of work of device, corresponding explanation is given with actual parameter distance：
Lcos micro-displays are illuminated using monochromaticity preferable R, G, BLED light source, the peak wavelength point of its LED light source
Wei not 640nm, 525nm, 450nm.Due to the restriction of the guide-lighting substrate cirtical angle of total reflection, the angle of visual field for choosing input is 20 °,
Refractive index n=1.51 of grating, Bragg angle θ=48 °, β-TR=50 °, N=4, WG-Height=1.4mm, W-HOE=20mm is then
Link-Distance = 13.34mm
W-45 = 10mm
The line density of R volume holographic gratings is：The line density of 3529lp/mm, G volume holographic grating is：4310lp/mm, G body
The line density of holographic grating is：4716lp/mm.It is staggered holographic optical lattice wave with above-mentioned parameter designing conjugation arrowband three primary colours
Lead, 3m at approximate 75 inch of the virtual display optics relatively low such that it is able to realize color cross-talk.
Figure 10 is the intelligence of the present invention conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly
Wearing binocular application schematic diagram.As shown in Figure 10, image shows that source and PBS polarization spectros component are all installed in mirror holder 100
In, the volume of wearable device is so simplified on the whole.By image light waves are passed through staggered row in waveguide couple input
Row holographic grating 101 makes which transmit in guide-lighting substrate in being coupled into waveguide, finally utilize at coupling outgoing position 102
The holographic grating that is staggered makes its coupling output to outside guide-lighting substrate, such that it is able to observe the image information being exaggerated.Pass through
The component of the present invention is used for into wearable display, the display picture for needing to show on the one hand can be watched in real time, simultaneously because this
The component of invention is not using special diaphragm stopping the entrance of external scene light completely, therefore can also observe outside scenery
Change.Furthermore waveguide device can be separately added on the two sides of common spectacles frame according to specific requirement, shown for eyes 3D.
The effect of embodiment and effect：
Due to not adopting special diaphragm in the embodiment of the present invention, therefore on the one hand can watch what needs showed in real time
Picture is shown, the change of outside scenery on the other hand can also be observed.
Component is selected as a result of P＆S light splitting in the embodiment of the present invention, light-wave energy can be kept in coupling-in face
It is uniform to be distributed, do not result in the image planes brightness disproportionation one of final output image or cause going out for display image image planes dark space
It is existing.
The coupling input with the same space cycle placed as a result of conjugate lens picture in the embodiment of the present invention and coupling
Output volume holographic grating is closed, therefore the full-color observation of image can be realized and the field range of observation image is expanded.
Claims (4)
1. a kind of conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly, includes successively：
Image display light source, for providing the image information for observing；
P＆S light converts component, for realizing the mutual conversion of P polarization light and S-polarization light；
Collimation lens set, for collimating to light wave；
PBS polarization spectro components, for carrying out polarization spectro to the light wave from image display light source；
Light splitting selects component, in order that light wave is equably covered on coupling-in face；
Conjugation three primary colours are staggered and couple input volume holographic grating, for disperseing incident ray and enabling light complete to meet
The condition of reflection is transmitted inside guide-lighting transferring substrate；
Guide-lighting transferring substrate, for carrying out total reflection propagation to light wave；
Conjugation three primary colours are staggered and couple output volume holographic grating, arrive for scattered incident ray is sequentially coupled output
Outside guide-lighting transferring substrate；Wherein, image display light source is located at the right side of guide-lighting transferring substrate, and PBS polarization spectros component is located at figure
As the lower section of display light source, respectively there is a P＆S light conversion component in the lower section and right of polarization spectro component, respectively have thereafter one
Collimation lens set, light splitting select component then positioned at the left side of polarization spectro component, and conjugation three primary colours are staggered and couple input body
Holographic grating and coupling output volume holographic grating are then located at input and the outgoing position of guide-lighting transferring substrate；
Coupling input volume holographic grating and coupling output volume holographic grating have identical space periodic, and by the micro- knot of identical
Structure spectrum groupware is constituted by periodic arrangement, and each micro structure is made up of cycle different RGB Volume Bragg gratings, is coupled
Input volume holographic grating and coupling output volume holographic grating with the position of conjugate lens picture be placed on guide-lighting transferring substrate input and
Outgoing position.
2. optical display device according to claim 1, it is characterised in that：PBS polarization spectros component can make S-polarization light
There is reflection at reflecting surface, and make P polarization light wholly transmissive.
3. optical display device according to claim 1, it is characterised in that：Light splitting selects component to have the property of half-reflection and half-transmission
Matter.
4. optical display device according to claim 1, it is characterised in that：Composition coupling input and coupling output volume holographic
Interval between each R, G, B body grating at interval and composition micro structure between the micro structure of grating should be greater than imaging
Wavelength dimension, to avoid color cross-talk, affect the resolution of final observation image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510061159.9A CN104656259B (en) | 2015-02-05 | 2015-02-05 | The conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510061159.9A CN104656259B (en) | 2015-02-05 | 2015-02-05 | The conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104656259A CN104656259A (en) | 2015-05-27 |
| CN104656259B true CN104656259B (en) | 2017-04-05 |
Family
ID=53247584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510061159.9A Active CN104656259B (en) | 2015-02-05 | 2015-02-05 | The conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104656259B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018233293A1 (en) * | 2017-06-23 | 2018-12-27 | 芋头科技（杭州）有限公司 | Imaging display system |
| EP3743761A4 (en) * | 2018-01-22 | 2021-03-10 | Facebook Technologies, LLC | Systems, apparatuses, and methods for monochromatic display waveguides |
| WO2022086755A1 (en) * | 2020-10-15 | 2022-04-28 | Perdix Systems Llc | Optical systems for providing polarized light to a waveguide |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137598B (en) * | 2015-07-24 | 2018-07-17 | 浙江大学 | Transparent display screen and preparation method thereof, optical system and application |
| CN107305291A (en) * | 2016-04-22 | 2017-10-31 | 成都理想境界科技有限公司 | A kind of near-eye display system |
| GB201609026D0 (en) | 2016-05-23 | 2016-07-06 | Bae Systems Plc | Waveguide manufacturing method |
| US10466479B2 (en) | 2016-10-07 | 2019-11-05 | Coretronic Corporation | Head-mounted display apparatus and optical system |
| CA2992213C (en) * | 2016-10-09 | 2023-08-29 | Yochay Danziger | Aperture multiplier using a rectangular waveguide |
| CN106526730B (en) * | 2016-11-21 | 2019-07-12 | 苏州苏大维格光电科技股份有限公司 | A kind of wide viewing angle waveguide eyeglass and production method and wear-type three-dimensional display apparatus |
| GB2556938B (en) * | 2016-11-28 | 2022-09-07 | Bae Systems Plc | Multiple waveguide structure for colour displays |
| US10409066B2 (en) | 2017-01-19 | 2019-09-10 | Coretronic Corporation | Head-mounted display device with waveguide elements |
| EP3397998A4 (en) * | 2017-02-22 | 2019-04-17 | Lumus Ltd. | Light guide optical assembly |
| IL269085B2 (en) * | 2017-03-21 | 2023-12-01 | Magic Leap Inc | Stacked waveguides having different diffraction gratings for combined field of view |
| WO2018194962A1 (en) * | 2017-04-17 | 2018-10-25 | Akonia Holographics Llc | Skew mirror auxiliary imaging |
| CN108873326A (en) | 2017-05-16 | 2018-11-23 | 中强光电股份有限公司 | Head-mounted display apparatus |
| CN107167920B (en) * | 2017-06-19 | 2020-06-30 | 东南大学 | High-brightness holographic waveguide display device |
| CN107479197B (en) * | 2017-07-31 | 2023-07-04 | 上海永微信息科技有限公司 | Holographic near-eye display system |
| DE102017217193B4 (en) * | 2017-09-27 | 2019-07-25 | Audi Ag | Display device, in particular for a vehicle, and vehicle with such a display device |
| EP3692400B1 (en) * | 2017-10-04 | 2023-10-11 | Akonia Holographics, LLC | Comb-shifted skew mirrors |
| CN109870808A (en) * | 2017-12-01 | 2019-06-11 | 苏州苏大维格光电科技股份有限公司 | A kind of nearly eye display eyeglass and nearly eye display device |
| CN111417883B (en) * | 2017-12-03 | 2022-06-17 | 鲁姆斯有限公司 | Optical equipment alignment method |
| FI129586B (en) * | 2017-12-22 | 2022-05-13 | Dispelix Oy | Multipupil waveguide display element and display device |
| FI128028B (en) * | 2017-12-22 | 2019-08-15 | Dispelix Oy | Multilayer waveguide display element |
| CN107966819A (en) * | 2017-12-27 | 2018-04-27 | 北京灵犀微光科技有限公司 | Waveguide display device |
| US10866426B2 (en) * | 2018-02-28 | 2020-12-15 | Apple Inc. | Scanning mirror display devices |
| CN108873355A (en) * | 2018-08-29 | 2018-11-23 | 深圳珑璟光电技术有限公司 | A kind of nearly eye display device |
| CN108828780A (en) * | 2018-08-29 | 2018-11-16 | 深圳珑璟光电技术有限公司 | A kind of nearly eye display Optical devices based on holographic grating |
| CN109917547A (en) * | 2018-10-31 | 2019-06-21 | 东南大学 | Full-color waveguide based on Color Polarization body grating couples nearly eye and shows structure, preparation method and AR wearable device |
| IL263519B (en) | 2018-12-05 | 2022-07-01 | Elbit Systems Ltd | Display illumimation optics |
| US11002906B2 (en) * | 2019-01-02 | 2021-05-11 | Htc Corporation | Waveguide device and optical engine |
| CN110058409A (en) * | 2019-02-02 | 2019-07-26 | 上海交通大学 | A kind of augmented reality display optical system |
| CN109656118B (en) * | 2019-02-26 | 2021-08-24 | 京东方科技集团股份有限公司 | Holographic display device and electronic apparatus |
| US20200355862A1 (en) * | 2019-05-08 | 2020-11-12 | Facebook Technologies, Llc | Spatial deposition of resins with different functionality on different substrates |
| CN110161701B (en) * | 2019-06-17 | 2021-05-14 | 杭州光粒科技有限公司 | Multi-depth imaging method for polarized light sensitive AR (augmented reality) glasses waveguide |
| CN110824613A (en) * | 2019-11-13 | 2020-02-21 | 东南大学 | Polarization multiplexing waveguide display device |
| CN113009690B (en) * | 2019-12-20 | 2023-02-17 | 杭州海康威视数字技术股份有限公司 | Image display method, near-to-eye display device and apparatus |
| CN110989174B (en) * | 2019-12-27 | 2021-07-13 | 南京工程学院 | Near-to-eye light field display based on novel polarizer holographic grating |
| KR20210107220A (en) | 2020-02-21 | 2021-09-01 | 삼성디스플레이 주식회사 | Augmented reality display device |
| DE102020205405A1 (en) | 2020-04-29 | 2021-11-04 | Robert Bosch Gesellschaft mit beschränkter Haftung | Light guide device, projection device and method for projection |
| CN114167606B (en) * | 2020-09-11 | 2023-11-10 | 宁波舜宇光电信息有限公司 | Optical waveguide assembly and display apparatus including the same |
| CN112505925A (en) * | 2020-12-08 | 2021-03-16 | 谷东科技有限公司 | Compact augmented reality near-to-eye device |
| CN115201959A (en) * | 2021-04-13 | 2022-10-18 | 宁波舜宇车载光学技术有限公司 | Optical waveguide sheet, device, and near-eye display system |
| US11741861B1 (en) * | 2022-02-08 | 2023-08-29 | Lumus Ltd. | Optical system including selectively activatable facets |
| CN115291317B (en) * | 2022-10-09 | 2023-01-17 | 泽景(西安)汽车电子有限责任公司 | Optical waveguide device, near-eye display module and near-eye display equipment |
| CN116893462B (en) * | 2023-09-08 | 2023-12-29 | 北京灵犀微光科技有限公司 | Preparation method of polarizer holographic grating and polarizer holographic grating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837988A (en) * | 2014-03-05 | 2014-06-04 | 杭州科汀光学技术有限公司 | Minitype near-to-eye display optical system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4655771B2 (en) * | 2005-06-17 | 2011-03-23 | ソニー株式会社 | Optical device and virtual image display device |
| US8989535B2 (en) * | 2012-06-04 | 2015-03-24 | Microsoft Technology Licensing, Llc | Multiple waveguide imaging structure |
| GB201304659D0 (en) * | 2013-03-14 | 2013-05-01 | Sec Dep For Business Innovation & Skills The | Display and method of operating a display |
| KR101496408B1 (en) * | 2013-05-20 | 2015-02-27 | 충북대학교 산학협력단 | Full color holographic optical element and method for fabricating the same using photopolymer, waveguide-type head mounted display |
-
2015
- 2015-02-05 CN CN201510061159.9A patent/CN104656259B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837988A (en) * | 2014-03-05 | 2014-06-04 | 杭州科汀光学技术有限公司 | Minitype near-to-eye display optical system |
Non-Patent Citations (1)
| Title |
|---|
| 《A full-color eyewear display using planar waveguides with reflection volume holograms》;Hiroshi Mukawa,Katsuyuki Akustsu,Ikuo Matsumura,Satoshi Nakano;《Journal of the SID》;20091231;第17卷(第3期);第185-193页 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018233293A1 (en) * | 2017-06-23 | 2018-12-27 | 芋头科技（杭州）有限公司 | Imaging display system |
| EP3743761A4 (en) * | 2018-01-22 | 2021-03-10 | Facebook Technologies, LLC | Systems, apparatuses, and methods for monochromatic display waveguides |
| WO2022086755A1 (en) * | 2020-10-15 | 2022-04-28 | Perdix Systems Llc | Optical systems for providing polarized light to a waveguide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104656259A (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104656259B (en) | The conjugation arrowband three primary colours nearly optics of the eye display device of volume holographic grating waveguide staggeredly | |
| CN104656258B (en) | The nearly optics of the eye display device of the adjustable curved surface waveguide of diopter | |
| CN106125308B (en) | Device and method for displaying images | |
| US11460694B2 (en) | Waveguide structure | |
| US7499216B2 (en) | Wide field-of-view binocular device | |
| CN104614858B (en) | Saw tooth structure plane waveguide visual optical display device for enhancing reality | |
| CN104503087B (en) | Polarize guide-lighting planar waveguide optical display device | |
| CN105807348B (en) | A kind of reflection volume holographic grating waveguiding structure | |
| US20200341280A1 (en) | Waveguide image combiners for augmented reality displays | |
| CN104536138B (en) | Slab guide binocular optical display device with sawtooth sandwich | |
| CN109073882A (en) | The display based on waveguide with exit pupil extender | |
| CN101726857B (en) | Head-mounted display apparatus | |
| CN106338832A (en) | Single holographic diffraction optical waveguide lens and 3D display device | |
| CN109073883A (en) | Waveguide with extended field of view | |
| CN110727116A (en) | Two-dimensional pupil expanding method based on polarizer holographic grating | |
| CN110300912A (en) | The projector framework inhibited including artifact | |
| CN108369300A (en) | It is imaged using multiple and different narrow band lights with corresponding different emission peak | |
| WO2018031634A1 (en) | Volume phase holographic waveguide for display | |
| CN104678555B (en) | The tooth form of diopter correction inlays planar waveguide optical device | |
| CN106471428A (en) | Holographic penetration optical device, stereo imaging system and multimedia head-worn formula system | |
| CN109725426A (en) | A kind of volume holographic waveguide display device | |
| CN113433612B (en) | Optical waveguide display device and AR display equipment | |
| CN107462993A (en) | Image display device | |
| CN109425985A (en) | A kind of near-eye display system and near-eye display | |
| US11941881B2 (en) | Method and system for pupil separation in a diffractive eyepiece waveguide display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |