CN109521506A - Nanometer eyeglass, nearly eye display methods and nearly eye display device - Google Patents
Nanometer eyeglass, nearly eye display methods and nearly eye display device Download PDFInfo
- Publication number
- CN109521506A CN109521506A CN201710850232.XA CN201710850232A CN109521506A CN 109521506 A CN109521506 A CN 109521506A CN 201710850232 A CN201710850232 A CN 201710850232A CN 109521506 A CN109521506 A CN 109521506A
- Authority
- CN
- China
- Prior art keywords
- nanometer
- eyeglass
- light
- area
- nanostructure
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
-
- 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
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention relates to nanometer eyeglass, nearly eye display methods and nearly eye display devices.The nanometer eyeglass includes: nanostructure；And the lens substrate of the carrier as the nanostructure, wherein, in the form of the nanometer grating being arranged in the lens substrate, the nanometer grating is distributed at angle and including the incident nanometer grating for receiving the image from micro- optical projection system and for the outgoing nanometer grating to outgoing coupling image in front of human eye the nanostructure.
Description
Technical field
The present invention relates to nearly eye field of display technology；Specifically, the present invention relates to a kind of nanometer of eyeglasses, and further relate to
And a kind of nearly eye display methods and a kind of nearly eye display device.
Background technique
With the development of virtual reality and augmented reality, near-eye display device is rapidly developed, such as Google
The Hololens of Google Glass and Microsoft.The nearly eye of augmented reality is shown in the field range of one or two eyes
Interior creation virtual image merges virtual image with visions of reality, interaction.Traditional optical waveguide elements coupling image light enters
Human eye, including use prism, reflecting mirror, semi-transparent semi-reflecting optical waveguide, holography and diffraction grating.Waveguide display systems are to utilize to be all-trans
It penetrates principle and realizes light wave transmissions, in conjunction with diffraction element, realize the orientation conduction of light, and then image light guides are used to human eye
Family can see the image of projection.
US008014050B2 discloses a kind of for Three-dimensional Display or the optical holographic phase-plate of photoswitch.Described phase
Position plate includes an individual diffraction grating structure and a kind of light-sensitive material.It can control the diffraction of single pixel unit by electrod-array
Efficiency and bit phase delay, to realize the quick regulation of light field phase.However it is this using electrod-array realize phase regulation
Method encounters the restriction that single pixel is difficult to microminiaturization, display effect be difficult to meet current consumer to display fineness and
The requirement of comfort level.
CN201620173623.3 proposes a kind of near-eye display system and wears display equipment, and light source is inputted to light-conducting system
Illuminating bundle, light beam progress transmitting extended is irradiated to hologram shown by image display system by light-conducting system, with the side of transmission
Formula activates hologram.
WO2016204916 proposes a kind of mixed display system.Two are formed in human eye form using two optical projection systems
Virtual scene.One optical projection system realizes wide viewing angle, but will lead to low-light level and low resolution；Another optical projection system is realized narrow
High brightness and high-resolution but may be implemented in visual angle.The augmented reality of big field angle is formed by the combination of two optical projection systems
Nearly eye is shown.The virtual scene of wide visual field that this hybrid projection method is realized, can not be simultaneously only in a small range at clear image
Take into account field angle, clarity and brightness.
Summary of the invention
One aspect of the present invention is designed to provide a kind of improved nanometer eyeglass.
Another aspect of the present invention is designed to provide a kind of improved nearly eye display methods and nearly eye display device.
In order to realize that foregoing purpose, the first aspect of the present invention provide a kind of nanometer of eyeglass, wherein the nanometer eyeglass
Include:
Nanostructure；And
The lens substrate of carrier as the nanostructure,
Wherein, the nanostructure is in the form of the nanometer grating being arranged in the lens substrate, and the nanometer grating is at folder
Angle is distributed and including the incident nanometer grating for receiving the image from micro- optical projection system and for going out to human eye front
Penetrate the outgoing nanometer grating of coupling image.
Optionally, in foregoing nanometer eyeglass, the nanostructure is located at the surface or interior of the lens substrate
Portion.
Optionally, in foregoing nanometer eyeglass, the nanostructure is single layer structure or multilayer laminate constructions.
Optionally, in foregoing nanometer eyeglass, the surface of the nanometer grating is covered with and the lens substrate
The different transparent dielectric layer of refractive index.
Optionally, in foregoing nanometer eyeglass, the lens substrate is more warp architectures, arcuate structure, strip
Structure, trapezoidal-structure or free form surface structure.
Optionally, in foregoing nanometer eyeglass, the nanostructure is made of multiple groups structural unit, every group of structure
Unit includes red units pixel, green cell pixel and unit pixel of blue, is respectively used to the corresponding corresponding color diagram of transmission
As light.
Optionally, in foregoing nanometer eyeglass, the lens substrate includes one or more groups of nanostructures, is fitted
It is coupled in one or more groups of micro- optical projection systems, realizes field stitching.
Optionally, in foregoing nanometer eyeglass, the nanostructure is in off-axis Fresnel lens structure.
Optionally, in foregoing nanometer eyeglass, the nanostructure includes three regions:
First area, to couple the image light from micro- optical projection system, coupling light is through a waveguide total internal reflection left side
The right side is transmitted separately to second area；
The second area, to change light trend, by beam direction third region；And
The third region, is output area, and light beam is emitted to human eye retina at a certain angle respectively.
Optionally, in foregoing nanometer eyeglass, the second area and the third region are with firstth area
Domain is axis, is presented spatially symmetrical.
Optionally, in foregoing nanometer eyeglass, the first area has oblique raster, and the oblique light
Grid assume diamond in shape structure, three-legged structure, trapezium structure or wave structure.
Optionally, in foregoing nanometer eyeglass, the first area is symmetrical shape and structure.
In order to realize foregoing purpose, the second aspect of the present invention provides a kind of nearly eye display methods, a kind of using aforementioned
The nearly eye display methods of nanometer eyeglass described in first aspect, wherein the described method comprises the following steps:
Step A: coupling the image light from micro- optical projection system with the first area, makes to couple light in waveguide entirely
Reflection left and right is transmitted separately to the second area；
Step B: change light trend with the second area, by beam direction third region；
Step C: it uses the third region as output area, light beam is emitted to human eye retina at a certain angle respectively.
In order to realize that foregoing purpose, the third aspect of the present invention provide a kind of nearly eye display device, wherein the nearly eye
Display device is coupled to form as the nanometer eyeglass as described in any one of first aspect with more than one micro- Projection System Optics, often
A micro- optical projection system realizes that the output of a view field image, all micro- optical projection system combinations obtain the virtual image of big visual field respectively
Coupling.
Optionally, in foregoing nearly eye display device, the nanometer eyeglass is fiber waveguide, micro- projected image coupling
It closes and enters nanometer eyeglass, meet total reflection condition propagation.
Optionally, in foregoing nearly eye display device, the nearly eye display device includes positioned at the described of left side
Nanometer eyeglass and the nanometer eyeglass positioned at right side, also, left-eye image light coupling in the nanometer eyeglass for being located at left side
Conduction is closed, eye image light couples conduction in the nanometer eyeglass for being located at right side, and right and left eyes receive output light simultaneously
Human eye transmitting lens piece is set to watch three-dimensional information.
Optionally, in foregoing nearly eye display device, the nanometer eyeglass is spliced into asymmetric distribution straggly,
Alternatively, being spliced into for the nanometer eyeglass is symmetrical.
Optionally, in foregoing nearly eye display device, the nearly eye display device has described in the three pieces of superposition
Nanometer eyeglass, be respectively used to transmission it is close, in, remote depth image.
Detailed description of the invention
Referring to attached drawing, the disclosure be will be apparent.It is to be appreciated that the mesh that these attached drawings are merely illustrative
, and be not intended to limit the scope of protection of the present invention.In figure:
Fig. 1 is the schematic diagram that the spliced big visual field of one kind of the invention is shown；
Fig. 2 a and Fig. 2 b are the schematic diagrames of the spliced big visual field nanometer eyeglass of one kind of the invention；
Fig. 3 is the structural schematic diagram of shown nanometer eyeglass；
Fig. 4 is the planar structure schematic diagram of a kind of nanometer of eyeglass；
Fig. 5 is the schematic perspective view of nanometer eyeglass shown in Fig. 4；
Fig. 6 is the microcosmic schematic diagram in nanometer eyeglass first area shown in Fig. 4 and Fig. 5；
Fig. 7 and Fig. 8 respectively illustrates the beam propagation schematic diagram of XZ plane and YZ plane；
Fig. 9 shows the optical grating diffraction schematic diagram of XZ plane and X/Y plane；
Figure 10 is a kind of nanometer waveguide eyeglass schematic diagram being made of multiple groups nanostructure；
Figure 11 is the microstructure schematic diagram of nanometer eyeglass first area shown in Figure 10；
Figure 12 is the schematic perspective view of nanometer eyeglass shown in Figure 11 and Figure 10；
Figure 13 is a kind of nanometer lens plane structural schematic diagram being made of multiple groups nanostructure；
Figure 14 is the schematic perspective view of nanometer eyeglass shown in Figure 13；
Figure 15 shows a kind of big visual field nanometer eyeglass schematic diagram of splicing；
Figure 16 shows a kind of asymmetric spliced nanometer eyeglass schematic diagram；
Figure 17 shows a kind of asymmetric spliced nanometer eyeglass schematic diagrames；
Figure 18 shows a kind of field stitching schematic diagram；
Figure 19 is the microcosmos area schematic diagram of monolithic colour nanometer eyeglass
Figure 20 is a kind of spatial reuse combination schematic diagram for expanding visual field；
Figure 21 is the structural schematic diagram realizing more depth of field and showing；And
Figure 22 is a kind of nearly eye display device schematic diagram.
Specific embodiment
Explain a specific embodiment of the invention in detail with reference to the accompanying drawings.In the drawings, identical appended drawing reference
Indicate identical or corresponding technical characteristic.
Fig. 1 is the schematic diagram that the spliced big visual field of one kind of the invention is shown.Nanometer eyeglass 3 and micro- optical projection system 2,4 are logical
The mode for crossing projection is optical coupled.Nanometer eyeglass 3 includes one group of functionalized nanostructure 1.Two or more micro- optical projection systems with
Nanometer lens combination forms nearly eye display device.Micro- optical projection system realizes the output of a view field image respectively, two or more
Micro- optical projection system combination obtains the virtual image coupling of big visual field.If single group nanostructure can project 30 at 2 meters of human eye
The virtual image of inch then can get 60 inches at 2 meters of human eye of the virtual image by double-view field splicing.The left side of nanometer eyeglass in figure
Smiling face be the virtual image 6, right side be human eye 5 example.
Fig. 2 a and Fig. 2 b are the schematic diagrames of the spliced big visual field nanometer eyeglass of one kind of the invention.In this embodiment,
Nanometer eyeglass is fiber waveguide, and micro- projected image is coupled into a nanometer eyeglass, meets total reflection condition propagation, reaches and reduce nearly eye
The purpose of display device volume.Projection Systems Image prolongs waveguide propagation in nanometer eyeglass.Fig. 2 a is a kind of nanometer of waveguide eyeglass
The schematic diagram of 2'.It arranges in the bending substrate of each nanometer of eyeglass two or more sets nanometer gratings, makes nanometer grating at angle
Distribution.Lens substrate is the carrier of nanostructure.The image of several different visual fields is coupled by multiple micro- optical projection systems respectively
Incident nanometer grating.Light is coupled by waveguide transmission, is emitted in front of human eye in eye-observation region by being emitted grating.It is empty
Quasi- image human eye front projection formed it is seamless spliced made of light field, achieve the purpose that expand field angle.If single group nanometer wave
Guide grating can get the virtual image that field angle is 50 °, then the double-view field virtual image field angle obtained by bending nanometer eyeglass is reachable
100°.The nanometer mirror in (Fig. 2 a), arc substrate (Fig. 2 b), long strip type, ladder type and free form surface substrate in addition to mostly bending substrate
Piece can realize that the nearly eye of wide viewing angle is shown by the splicing of nanometer waveguide optical grating group.A nanometer waveguide eyeglass 2'' is shown in Fig. 2 b.
The essence of nanometer grating structure is that light refractive index changes and can make with light in micro-nano-scale space periodically
With generation diffraction effect.Above-mentioned nanostructure proposed by the present invention can be using ultraviolet continuous emptying frequency photoetching technique and nanometer
Coining is made, and the ultraviolet continuous emptying frequency photoetching technique is referring to application No. is the Chinese patent Shens of CN201310166341.1
The lithographic equipment and photolithography method that please be record.Its structure can be relief type, make nanometer by above-mentioned nano-photoetching method
Structure, then the template that can be used in coining is made, the pixel battle array of nanometer optical grating constitution is then imprinted out by nano impression batch
Column.But also refractive index modulation type, by nano-photoetching in refractive index modulation type recording materials (such as photopolymer film, light
Photorefractive glass etc.) on expose preparation.
Attached drawing 3 is nanostructure 32 and lens substrate 31 constitutes nanometer eyeglass (visual eyeglass 3) or visual lens unit
Structural schematic diagram.As can be seen that functionalized nanostructure can be located at lens substrate surface or inside, it can be one or more layers and receive
Rice build stack is formed.As shown in Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c), by being bonded or making nanometer on 31 surface of lens substrate
Structure 32, or nanostructure 32(Fig. 3 (d), Fig. 3 (e) are internally embedded in lens substrate 31) obtain nanometer eyeglass.It is worth pointing out
It is (such as Fig. 3 (b), Fig. 3 (e), Fig. 3 (f)) when making the nanostructure that single layer and multilayer closely overlap, it can be in optical grating construction
One layer of transparent dielectric layer 33 different from substrate refractive index of surface vapor deposition or fitting, protects nanometer grating architectural characteristic and leaded light special
Property.The transparent dielectric layer can also overlay in other ways on the surface of nanometer grating.
With reference to Fig. 4, Fig. 4 is that a kind of nearly eye being made of the nanometer eyeglass of multiple groups nanostructure and one group of micro- optical projection system is shown
Show helmet planar structure schematic diagram, including three functional regions.First area 7 is to couple the image from micro- optical projection system
Light, coupling light are transmitted separately to second area 8 through waveguide total internal reflection or so, and second area 8 is moved towards to change light,
By beam direction third region 9, third region 9 is output area, and light beam is emitted to human eye retina at a certain angle respectively.
In alternative embodiments, second area and third region are presented spatially symmetrical using first area as axis；It can also be with
It is considered as asymmetric distribution.Specifically, Fig. 5 is schematic perspective view shown in Fig. 4, the trend of light is described in detail.
Wherein, three functional regions are nanometer diffraction grating, by the way that grating parameter, such as depth, duty ratio and week is cleverly arranged
Phase etc. regulates and controls light extraction efficiency and shooting angle, further realizes wide-angle diffraction, reach big visual field effect.In the program, two
Visible area, which generates image by a micro- optical projection system, can take into account intelligent glasses cost, weight and body while expanding visual angle
Product.
Fig. 6 is the microcosmic schematic diagram in first area, only draws diamond structure oblique raster in present embodiment, and light passes through the
When one region 7, coupling light respectively enters left and right region, by second area bending and waveguide total internal reflection process, from third
The angled output in region, left and right region are distinguished angled output image light, are coupled through human eye, and viewing view is expanded
?.It should be pointed out that in addition to the oblique raster for scheming shown diamond structure, but also three-legged structure, trapezium structure, wave structure
Deng.Under some cases, oblique raster is bilateral symmetry, achievees the purpose that evenly distribute field luminance, visual angle size.It is some
In the case of, oblique raster is left and right unsymmetric structure, to realize main perspective and auxiliary view from design.Realize big visual angle
The switching of (display performance is preferential) and small angle (energy conservation priority).
Fig. 7 and Fig. 8 respectively illustrates the beam propagation schematic diagram of XZ plane and YZ plane.In XZ plane, light is by the
The bilateral symmetry oblique raster in one region 7, left and right is coupled to second area 8 to light respectively, in YZ plane, by second area 8
The light of bending propagates to third region 9, and through the angled output of diffraction process, left and right region is respectively from respective third region
Output light is coupled to human eye, to a certain degree expansion viewing visual angle.
Specifically, the structure in multiple function region includes nanometer diffraction grating, and field angle and the direction of propagation can lead to
The orientation of control grating is crossed, the period realizes precision control.Fig. 9 shows the optical grating diffraction schematic diagram of XZ plane and X/Y plane.
Light is with the incident grating of θ (x), by diffraction, with the outgoing of β (x) angle of diffraction, by incidence angle, incident orientation angle, screen periods and
The change of orientation, to control the angle of diffraction and the azimuthal variation of diffraction, to control field range.
Figure 10 is a kind of nanometer waveguide eyeglass schematic diagram being made of multiple groups nanostructure, including three regions, is different from
The first area 7' of above-mentioned nanometer lens structure, present embodiment is symmetrical circular configuration, but is not limited to circle, can
The shapes such as the side's of thinking row, diamond shape.Specifically, Figure 11 is the microstructure schematic diagram of first area 7', and only depicting in figure has
The nanometer grating of certain tilt angle, light passes through symmetrical border circular areas, through oblique raster diffraction and waveguide total internal reflection mistake
Journey propagates to second area 8', bends by the light of second area, changes radiation direction, propagate to third region 9', passes through
Optical grating diffraction process, diffraction is exported to human eye at a certain angle, by way of splicing, realizes the expansion of field range.This is received
Metric wave lead eyeglass with and the nearly eye display helmet of multiple groups micro- optical projection system composition can take into account display while expanding field angle
Brightness and clarity.
Wherein, Figure 12 is the schematic perspective view of present embodiment, and light first passes around two round first areas, point
Supplementary biography transports to second area, through second area light bending function, is totally reflected function in conjunction with optical waveguide, propagates to third region,
Through third region optical grating diffraction function, with the outgoing of certain angle of diffraction.It, can be with by controlling the screen periods and orientation in several regions
The variation of visual field size is directly controlled, realizes field expander effect.
Figure 13 is a kind of nanometer lens plane structural schematic diagram being made of multiple groups nanostructure, including first area 7''
With second area 8'', wherein Figure 14 is the schematic perspective view of this nanometer of eyeglass, and light is incident to first area first, is passed through
The coupling bending of first area grating, in conjunction with waveguide total internal reflection, propagates to second area, second area is output area, light
Through second area optical grating diffraction, it is emitted to human eye.Specifically, first area and second area are nanometer diffraction grating, pass through tune
Screen periods and orientation are controlled, cooperates incidence angle and incident orientation angle, the angle of diffraction and the azimuthal control of diffraction may be implemented, into one
Step realizes the accurate control of field range.First area and second area have same length in X-direction, allow light in X
Pupil is expanded in direction.Second area has long latitude in the Y direction, and light is allow to expand pupil in the Y direction.By way of splicing,
It can be realized certain expansion of field angle.This nanometer of waveguide eyeglass with and the micro- optical projection system composition of multiple groups the nearly eye display helmet,
While expanding field angle, display brightness and clarity can be taken into account.It is received in addition, Figure 15 shows another big visual field of splicing
Rice eyeglass realizes bigger field range by the splicing of three groups of functional regions.It should be noted that present embodiment is not
Two groups or three groups of functional regions are confined to, may include two groups and more than two.
It is noted, that spliced nanometer eyeglass can be asymmetric connecting method, Figure 16 shows a kind of non-right
Claim spliced nanometer eyeglass 3' schematic diagram, it can be seen that splicing part is unsymmetric structure, and this mode helps to reduce light field
Crosstalk is realized seamless spliced.Therefore, connecting method can be symmetrical, can also be with asymmetric arrangement straggly.In addition, Figure 17 shows
Another asymmetric connecting method nanometer eyeglass schematic diagram, including three regions, are different from above-mentioned nanometer lens structure, this reality
The first area for applying mode is asymmetrical circular configuration, but is not limited to circle, can be the shapes such as square row, diamond shape.Wherein,
Arrangement straggly above and below third region has long latitude in the Y direction, light is made to expand pupil in the Y direction, in conjunction with connecting method, into
One step obtains bigger visual field.In addition, Figure 18 gives a kind of field stitching schematic diagram, through the nanometer eyeglass comprising nanostructure
3, it realizes the seamless spliced of virtual scene, increases field range, reduce vision crosstalk.
By above example as can be seen that lens substrate may include one or more groups of functionalized nanostructures.Lens substrate
More than one set nanostructure and one group of micro- projection system in upper one group of nanostructure and the micro- optical projection system of more than one set or lens substrate
More than one set nanostructure and the micro- optical projection system coupling of more than one set, realize field stitching, reach expansion on system or lens substrate
The purpose at visual angle.
Figure 19 is the microcosmos area schematic diagram of monolithic colour nanometer eyeglass, this nanometer of eyeglass can be by above-mentioned a variety of connecting methods
It constitutes, including one or more groups of functionalized nanostructures.Specifically, the functionalized nanostructure is by 10 structure of multiple groups structural unit
At every group of structural unit 10 includes red units pixel 11, green cell pixel 12 and unit pixel of blue 13, is passed for corresponding
Defeated different colours image light, wherein red image light is coupled into red units pixel, and green image light is coupled into green cell
Pixel, blue image light are coupled into unit pixel of blue.Third functional region is indicated with appended drawing reference 9 in figure.The functionality
Nanostructure is based on spatial multiplexing mode, realizes that monolithic colour is shown, optimizes preparation process, saved process costs, and bright
Degree and visual field resolution ratio are guaranteed.In addition, Figure 20 is a kind of spatial reuse combination for expanding visual field, optionally implementing
In mode, nanostructure quite with single off-axis Fresnel lens structure, can make image light converge at human eye.Wherein,
By designing single pixel unit complexity nanostructure, the optical field distribution through nanometer eyeglass can be optimized.Between appropriately designed pixel
Away from, can be allowed to meet illumination gap require.In addition, scheming the above structures such as pixel size, structure or groove depth of each pixel by adjusting
Parameter can make each pixel obtain ideal diffraction efficiency, achieve the purpose that Uniform Illumination according to changes in spatial distribution.Single sub- picture
The nanometer grating period of element is within the scope of 100nm-1000nm.In addition, the nanometer sub-pixel tool of corresponding different RGB color
There are different angle of diffraction and focal length, to meet the requirement of amplification imaging and colored synthesis.
Figure 21 is the structural schematic diagram realizing more depth of field and showing, by being superimposed three pieces nanometer eyeglass, that is, close shot depth waveguide eyeglass
The mode of 3', middle depth of field waveguide eyeglass 3'' and distant view depth waveguide eyeglass 3''', are respectively used to transmit nearly depth image 14', middle scape
Deep image 14'', remote depth image 14'''.Wherein, the period of the pixel unit of three pieces nanometer eyeglass and distribution of orientations are different, figure
When as light coupling nanometer eyeglass, different depth map image sources focus on different virtual image faces, when eye-observation, can switch difference in real time
Depth image realizes that no visual fatigue is shown.
Figure 22 is the nearly eye display device using above-mentioned a variety of spliced nanometer eyeglasses 3, including left-eye image light is in Zuo Na
Coupling conduction in rice eyeglass；Eye image light couples conduction in right nanometer eyeglass, and right and left eyes receive output light, people simultaneously
Eye 5 watches three-dimensional information through eyeglass.
In conclusion the invention discloses a kind of wide viewing angle Worn type 3D display dresses realized using field stitching method
It sets.While improving field angle, the clarity and brightness of virtual scene ensure that.Wide, narrow viewing angle switching can be achieved in the design,
Take into account the requirement of the intelligent glasses different application such as portable, energy consumption, performance.
The present invention is based on field stitchings and holographic optics principle to realize big visual field augmented reality in conjunction with micro- optical projection system
While Three-dimensional Display, the clarity and brightness of virtual image can guarantee.As it can be seen that big visual field nanometer eyeglass of the invention and nearly eye
Display device expands field range by field stitching.
Compared with prior art, the beneficial effects of the present invention are: (1) the invention proposes a variety of big visual field nanometer mirrors
Piece expands output visual angle, increases virtual scene field range, while guaranteeing that virtual scene is clear by way of field stitching
Degree and brightness；(2) nearly eye display device proposed by the present invention, using the nanometer eyeglass of above-mentioned design, it can be achieved that the viewing of big visual field,
Enhance visual effect；(3) field stitching method proposed by the present invention is, it can be achieved that width/narrow viewing angle switching, takes into account display performance, energy
The factors such as source consumption, can meet the application demand of different scenes.
Technical scope of the invention is not limited solely to the content in above description, and those skilled in the art can not take off
Under the premise of from technical thought of the invention, many variations and modifications are carried out to above embodiment, and these deformations and modification are equal
It should belong in the scope of the present invention.
Claims (18)
1. a kind of nanometer of eyeglass, which is characterized in that the nanometer eyeglass includes:
Nanostructure；And
The lens substrate of carrier as the nanostructure,
Wherein, the nanostructure is in the form of the nanometer grating being arranged in the lens substrate, and the nanometer grating is at folder
Angle is distributed and including the incident nanometer grating for receiving the image from micro- optical projection system and for going out to human eye front
Penetrate the outgoing nanometer grating of coupling image.
2. as described in claim 1 nanometer of eyeglass, wherein the nanostructure is located at the surface or interior of the lens substrate
Portion.
3. as claimed in claim 2 nanometer of eyeglass, wherein the nanostructure is single layer structure or multilayer laminate constructions.
4. as described in claim 1 nanometer of eyeglass, wherein the surface of the nanometer grating is covered with the folding with the lens substrate
Penetrate the different transparent dielectric layer of rate.
5. as described in claim 1 nanometer of eyeglass, wherein the lens substrate is more warp architectures, arcuate structure, strip knot
Structure, trapezoidal-structure or free form surface structure.
6. as described in claim 1 nanometer of eyeglass, wherein the nanostructure is made of multiple groups structural unit, every group of structure
Unit includes red units pixel, green cell pixel and unit pixel of blue, is respectively used to the corresponding corresponding color diagram of transmission
As light.
7. as described in claim 1 nanometer of eyeglass, wherein the lens substrate includes one or more groups of nanostructures, is fitted
It is coupled in one or more groups of micro- optical projection systems, realizes field stitching.
8. as described in claim 1 nanometer of eyeglass, wherein the nanostructure is in off-axis Fresnel lens structure.
9. the nanometer eyeglass as described in any one of preceding claims 1 to 8, wherein the nanostructure includes three regions:
First area, to couple the image light from micro- optical projection system, coupling light is through a waveguide total internal reflection left side
The right side is transmitted separately to second area；
The second area, to change light trend, by beam direction third region；And
The third region, is output area, and light beam is emitted to human eye retina at a certain angle respectively.
10. as claimed in claim 9 nanometer of eyeglass, wherein the second area and the third region are with firstth area
Domain is axis, is presented spatially symmetrical.
11. as claimed in claim 9 nanometer of eyeglass, wherein the first area has oblique raster, and the oblique light
Grid assume diamond in shape structure, three-legged structure, trapezium structure or wave structure.
12. as claimed in claim 9 nanometer of eyeglass, wherein the first area is symmetrical shape and structure.
13. a kind of nearly eye display methods using the nanometer eyeglass as described in any one of claim 9 to 12, feature exist
In the described method comprises the following steps:
Step A: coupling the image light from micro- optical projection system with the first area, makes to couple light in waveguide entirely
Reflection left and right is transmitted separately to the second area；
Step B: change light trend with the second area, by beam direction third region；
Step C: it uses the third region as output area, light beam is emitted to human eye retina at a certain angle respectively.
14. a kind of nearly eye display device, which is characterized in that the nearly eye display device in such as preceding claims 1 to 12 by appointing
Nanometer eyeglass described in one is coupled to form with more than one micro- Projection System Optics, and each micro- optical projection system realizes one respectively
The output of view field image, all micro- optical projection system combinations obtain the virtual image coupling of big visual field.
15. nearly eye display device as claimed in claim 14, wherein the nanometer eyeglass is fiber waveguide, micro- projected image
It is coupled into a nanometer eyeglass, meets total reflection condition propagation.
16. nearly eye display device as claimed in claim 14, wherein the nearly eye display device includes positioned at the described of left side
Nanometer eyeglass and the nanometer eyeglass positioned at right side, also, left-eye image light coupling in the nanometer eyeglass for being located at left side
Conduction is closed, eye image light couples conduction in the nanometer eyeglass for being located at right side, and right and left eyes receive output light simultaneously
Human eye transmitting lens piece is set to watch three-dimensional information.
17. nearly eye display device as claimed in claim 14, wherein the nanometer eyeglass is spliced into asymmetric straggly point
Cloth, alternatively, being spliced into for the nanometer eyeglass is symmetrical.
18. nearly eye display device as claimed in claim 14, wherein the nearly eye display device has described in the three pieces of superposition
Nanometer eyeglass, be respectively used to transmission it is close, in, remote depth image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850232.XA CN109521506B (en) | 2017-09-20 | 2017-09-20 | Nano lens, near-to-eye display method and near-to-eye display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850232.XA CN109521506B (en) | 2017-09-20 | 2017-09-20 | Nano lens, near-to-eye display method and near-to-eye display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109521506A true CN109521506A (en) | 2019-03-26 |
| CN109521506B CN109521506B (en) | 2022-08-12 |
Family
ID=65769667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710850232.XA Active CN109521506B (en) | 2017-09-20 | 2017-09-20 | Nano lens, near-to-eye display method and near-to-eye display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109521506B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109255A (en) * | 2019-06-17 | 2019-08-09 | 杭州光粒科技有限公司 | The structure for expanding AR field angle and reducing ray machine scale based on optical waveguide |
| CN110716276A (en) * | 2019-10-21 | 2020-01-21 | 杭州光粒科技有限公司 | Optical waveguide lens, manufacturing method thereof and AR glasses |
| CN112817151A (en) * | 2019-11-18 | 2021-05-18 | 苏州苏大维格科技集团股份有限公司 | Waveguide lens and AR display device |
| CN112817152A (en) * | 2019-11-18 | 2021-05-18 | 苏州苏大维格科技集团股份有限公司 | Holographic waveguide and AR display device |
| WO2021106542A1 (en) * | 2019-11-26 | 2021-06-03 | 富士フイルム株式会社 | Light guide element and image display device |
| CN113050281A (en) * | 2021-02-28 | 2021-06-29 | 南昌三极光电有限公司 | Optical system and mixed reality equipment |
| CN114839765A (en) * | 2022-03-09 | 2022-08-02 | 深圳市光舟半导体技术有限公司 | Optical pupil expanding device with large field angle, display device and method |
| CN117055233A (en) * | 2023-10-13 | 2023-11-14 | 玩出梦想(上海)科技有限公司 | Pupil distance adjustable head-mounted display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608762A (en) * | 2007-11-29 | 2012-07-25 | 索尼株式会社 | Image display apparatus |
| US20150160529A1 (en) * | 2013-12-11 | 2015-06-11 | Sbg Labs Inc. | Holographic Waveguide Display |
| CN104714305A (en) * | 2014-12-02 | 2015-06-17 | 上海理鑫光学科技有限公司 | Optical displaying device for carrying out three-dimensional imaging on two-dimensional images |
| CN105807348A (en) * | 2016-05-23 | 2016-07-27 | 东南大学 | Reflection volume holographic grating waveguiding structure |
| CN106371222A (en) * | 2016-11-30 | 2017-02-01 | 苏州苏大维格光电科技股份有限公司 | Waveguide lens of nanometer optical lens and multi-field-depth 3D display device |
| CN106501938A (en) * | 2016-11-21 | 2017-03-15 | 苏州苏大维格光电科技股份有限公司 | A kind of wear-type augmented reality three-dimensional display apparatus |
| US20170102544A1 (en) * | 2015-10-08 | 2017-04-13 | Tuomas Vallius | Reducing stray light transmission in near eye display using resonant grating filter |
| CN107111142A (en) * | 2015-01-06 | 2017-08-29 | 伊奎蒂公司 | The wear-type imaging device of microlens array with bending |
-
2017
- 2017-09-20 CN CN201710850232.XA patent/CN109521506B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608762A (en) * | 2007-11-29 | 2012-07-25 | 索尼株式会社 | Image display apparatus |
| US20150160529A1 (en) * | 2013-12-11 | 2015-06-11 | Sbg Labs Inc. | Holographic Waveguide Display |
| CN104714305A (en) * | 2014-12-02 | 2015-06-17 | 上海理鑫光学科技有限公司 | Optical displaying device for carrying out three-dimensional imaging on two-dimensional images |
| CN107111142A (en) * | 2015-01-06 | 2017-08-29 | 伊奎蒂公司 | The wear-type imaging device of microlens array with bending |
| US20170102544A1 (en) * | 2015-10-08 | 2017-04-13 | Tuomas Vallius | Reducing stray light transmission in near eye display using resonant grating filter |
| CN105807348A (en) * | 2016-05-23 | 2016-07-27 | 东南大学 | Reflection volume holographic grating waveguiding structure |
| CN106501938A (en) * | 2016-11-21 | 2017-03-15 | 苏州苏大维格光电科技股份有限公司 | A kind of wear-type augmented reality three-dimensional display apparatus |
| CN106371222A (en) * | 2016-11-30 | 2017-02-01 | 苏州苏大维格光电科技股份有限公司 | Waveguide lens of nanometer optical lens and multi-field-depth 3D display device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109255A (en) * | 2019-06-17 | 2019-08-09 | 杭州光粒科技有限公司 | The structure for expanding AR field angle and reducing ray machine scale based on optical waveguide |
| CN110716276A (en) * | 2019-10-21 | 2020-01-21 | 杭州光粒科技有限公司 | Optical waveguide lens, manufacturing method thereof and AR glasses |
| CN112817152B (en) * | 2019-11-18 | 2023-03-14 | 苏州苏大维格科技集团股份有限公司 | Holographic waveguide and AR display device |
| CN112817151A (en) * | 2019-11-18 | 2021-05-18 | 苏州苏大维格科技集团股份有限公司 | Waveguide lens and AR display device |
| CN112817152A (en) * | 2019-11-18 | 2021-05-18 | 苏州苏大维格科技集团股份有限公司 | Holographic waveguide and AR display device |
| WO2021098744A1 (en) * | 2019-11-18 | 2021-05-27 | 苏州苏大维格科技集团股份有限公司 | Waveguide lens and augmented reality glasses |
| WO2021098742A1 (en) * | 2019-11-18 | 2021-05-27 | 苏州苏大维格科技集团股份有限公司 | Waveguide lens and augmented reality glasses |
| WO2021106542A1 (en) * | 2019-11-26 | 2021-06-03 | 富士フイルム株式会社 | Light guide element and image display device |
| JPWO2021106542A1 (en) * | 2019-11-26 | 2021-06-03 | ||
| JP7303326B2 (en) | 2019-11-26 | 2023-07-04 | 富士フイルム株式会社 | Light guide element and image display device |
| CN113050281A (en) * | 2021-02-28 | 2021-06-29 | 南昌三极光电有限公司 | Optical system and mixed reality equipment |
| TWI824355B (en) * | 2021-02-28 | 2023-12-01 | 大陸商南昌三極光電有限公司 | Optical system and mixed reality apparatus |
| CN114839765A (en) * | 2022-03-09 | 2022-08-02 | 深圳市光舟半导体技术有限公司 | Optical pupil expanding device with large field angle, display device and method |
| CN117055233A (en) * | 2023-10-13 | 2023-11-14 | 玩出梦想(上海)科技有限公司 | Pupil distance adjustable head-mounted display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109521506B (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109521506A (en) | Nanometer eyeglass, nearly eye display methods and nearly eye display device | |
| US20220137404A1 (en) | Methods and systems for generating virtual content display with a virtual or augmented reality apparatus | |
| CN106526730B (en) | A kind of wide viewing angle waveguide eyeglass and production method and wear-type three-dimensional display apparatus | |
| US9964768B2 (en) | Head mounted display using spatial light modulator to generate a holographic image | |
| CN105492957B (en) | Using the image display of pairs of glasses form | |
| CN106291958B (en) | Display device and image display method | |
| WO2017107313A1 (en) | Naked eye 3d laser display device | |
| JP3376023B2 (en) | Stereoscopic image display method and image display device | |
| CN106338832A (en) | Single holographic diffraction optical waveguide lens and 3D display device | |
| CN106773057A (en) | A kind of monolithic hologram diffraction waveguide three-dimensional display apparatus | |
| WO2018076661A1 (en) | Three-dimensional display apparatus | |
| CN109073882A (en) | The display based on waveguide with exit pupil extender | |
| CN206431369U (en) | A kind of monolithic hologram diffraction waveguide three-dimensional display apparatus | |
| CN108885310A (en) | Light guide is imaged in binary channels with dichroism reflector | |
| WO2019062480A1 (en) | Near-eye optical imaging system, near-eye display device and head-mounted display device | |
| TW200916831A (en) | Directionally controlled illumination unit for autostereoscopic displays | |
| HU227185B1 (en) | Substrage-guided optical beam expander | |
| WO2019041812A1 (en) | Display system and display method | |
| CN105700145B (en) | Head-mounted image display device | |
| CN109188688A (en) | Nearly eye display device based on diffractive optical element | |
| KR20210006915A (en) | Augmented reality display device | |
| KR20210007818A (en) | Near eye display device, agreegated reality glasses and method of its operation | |
| US20220107501A1 (en) | Near-eye display device, augented reality glasses including same, and operating method therefor | |
| Li et al. | Metasurfaces for near-eye display applications | |
| CN208805627U (en) | The device shown for realizing the nearly eye of 3-D image |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 215123 No. 68, Xinchang Road, Suzhou Industrial Park, Jiangsu, China Applicant after: SUZHOU SUDAVIG SCIENCE AND TECHNOLOGY GROUP Co.,Ltd. Applicant after: SOOCHOW University Address before: 215123 No. 68, Xinchang Road, Suzhou Industrial Park, Jiangsu, China Applicant before: SVG OPTRONICS, Co.,Ltd. Applicant before: SOOCHOW University |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |