CN108803022A - Simple eye big visual field near-eye display device and the big visual field near-eye display device of binocular - Google Patents
Simple eye big visual field near-eye display device and the big visual field near-eye display device of binocular Download PDFInfo
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- CN108803022A CN108803022A CN201810149439.9A CN201810149439A CN108803022A CN 108803022 A CN108803022 A CN 108803022A CN 201810149439 A CN201810149439 A CN 201810149439A CN 108803022 A CN108803022 A CN 108803022A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- 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
- 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
-
- 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
- G02B2027/0125—Field-of-view increase by wavefront division
-
- 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
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
Abstract
The invention discloses simple eye big visual field near-eye display devices, including at least two image source display systems, the eyepiece optical system and nearly eye display optical system being arranged in a one-to-one correspondence with described image source display system, the image light that each image source display system is sent out injects nearly eye display optical system after corresponding eyepiece optical system processing, it is simple eye that described image light injects observer after the injection of nearly eye display optical system, the image that the image light of each image source display system is formed after the injection of nearly eye display optical system mutually splices, form a complete image.To which each image source display system is respectively used to the topography of one general image of display, and last multiple topographies are spliced to form complete general image, to increase the simple eye field angle of equipment.
Description
Technical field
The present invention relates to augmented realities to show equipment technical field, more particularly to big visual field near-eye display device.
Background technology
Existing augmented reality display system will consider display resolution, field angle, volume weight, display effect,
Human eye observation's comfort etc., especially current scheme are difficult to realize the display of big visual field, are currently used for the augmented reality worn
Show the field angle of the usual 14-34 degree of equipment, this far can not meet the needs of consumption market.
Invention content
The embodiment of the present invention provides a kind of big visual field near-eye display device, and the nearly eye of big visual field is realized by the way of splicing
Display.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of simple eye big visual field near-eye display device comprising at least
Two image source display systems, the eyepiece optical system being arranged in a one-to-one correspondence with described image source display system and nearly eye show light
System, the image light that each image source display system is sent out are injected nearly eye after corresponding eyepiece optical system processing and are shown
Optical system, described image light is simple eye from injection observer after the injection of nearly eye display optical system, each image source
The image that the image light of display system is formed after the injection of nearly eye display optical system mutually splices, and forms a complete graph
Picture.
To which the image that each image source display system is respectively used in some angular field of view is shown, and spelled by image
It connects, increases the simple eye field angle of equipment.
It is simple eye that the light of real world injects observer after the nearly eye display optical system.So that the present invention can
Equipment is shown for augmented reality, by the image superposition being spliced to form in real world, is reached raising enhancing display and is set
The technique effect of standby field angle.
The image source display system can be digital light processing (DLP) display, liquid crystal on silicon (LCOS) display,
Any one in LCD display, OLED display, optical fiber scanning display and MEMS scan image display systems.
The nearly eye display optical system be include tablet diffraction optical waveguide, array geometry optical waveguide or free form surface light
In waveguide any one, two or more.
Further alternative, the nearly eye display optical system is tablet diffraction optical waveguide, the tablet diffraction optical waveguide
It is provided with and is both provided with coupling light with the one-to-one entering light portion of eyepiece optical system, each entering light portion of tablet diffraction optical waveguide
Grid, tablet diffraction optical waveguide, which is additionally provided with, to be used to the one-to-one decoupling grating of the coupling grating, coupling grating by mesh
The light beam coupling of mirror optical system exit enters tablet diffraction optical waveguide so that the light beam meets the tablet diffraction optical waveguide
Inner full-reflection condition, decoupling grating corresponding with each coupling grating makes the light beam be unsatisfactory for the tablet diffraction light wave
The inner full-reflection condition led and projected from tablet diffraction optical waveguide, each decoupling grating is disposed proximate to, so that each decoupling
The edge for the image that optical grating reflection goes out mutually splices, to form a complete image.Optionally, the coupling grating is by anti-
Inject the light beam of tablet diffraction optical waveguide so that the light beam meets the inner full-reflection item of the tablet diffraction optical waveguide
Part；Decoupling grating is by reflection by corresponding coupling grating reflection and in the light beam of tablet diffraction light waveguide total internal reflection so that
The light beam is unsatisfactory for the inner full-reflection condition of the tablet diffraction optical waveguide and is projected from tablet diffraction optical waveguide.
Further alternative, the nearly eye display optical system is array geometry optical waveguide, and array geometry optical waveguide is set
It is equipped with and is both provided with coupled reflection with the one-to-one entering light portion of eyepiece optical system, each entering light portion of array geometry optical waveguide
Portion, array geometry optical waveguide be additionally provided with the one-to-one decoupling reflecting part in the coupled reflection portion, coupled reflection portion uses
The light beam of array geometry optical waveguide is injected in reflection so that the light beam meets the inner full-reflection of the array geometry optical waveguide
Condition；Decoupling reflecting part is by reflection by the reflection of corresponding coupled reflection portion and in the light of array geometry optical waveguide inner total reflection
Beam so that the light beam is unsatisfactory for the inner full-reflection condition of the array geometry optical waveguide and is penetrated from array geometry optical waveguide
Go out, each decoupling reflecting part is disposed proximate to, so that the edge for the image that each decoupling reflecting part reflects mutually splices, to be formed
One complete image.
Preferably, the nearly eye display optical system includes horizontal extension waveguide and vertical extension waveguide, through eyepiece light
The light beam that system projects is after the horizontal extension waveguide expands in the horizontal direction, using the vertical extension waveguide
It carries out after being expanded in vertical direction, projects vertical extension waveguide, it is simple eye to inject observer.
To since the image light that image source display system is sent out is extending waveguide by horizontal extension waveguide with vertical
Afterwards, image light is all extended in the vertical direction and the horizontal direction, expands the exit pupil diameter that nearly eye is shown.
The horizontal extension waveguide and vertical extension waveguide can be tablet diffraction optical waveguide, array geometry optical waveguide or
Any one in free form surface optical waveguide.
Further alternative, the horizontal extension waveguide or vertical extension waveguide are tablet diffraction optical waveguide, the tablet
Diffraction optical waveguide is provided with to be all provided with the one-to-one entering light portion of eyepiece optical system, each entering light portion of tablet diffraction optical waveguide
It is equipped with coupling grating, tablet diffraction optical waveguide is additionally provided with and the one-to-one decoupling grating of the coupling grating, coupling grating
It is used to the light beam that tablet diffraction optical waveguide is injected in reflection so that the inside that the light beam meets the tablet diffraction optical waveguide is complete
Conditioned reflex；Decoupling grating is by reflection by corresponding coupling grating reflection and in the light of tablet diffraction light waveguide total internal reflection
Beam so that the light beam is unsatisfactory for the inner full-reflection condition of the tablet diffraction optical waveguide and is penetrated from tablet diffraction optical waveguide
Go out, each decoupling grating is disposed proximate to, so that the edge for the image that each decoupling optical grating reflection goes out mutually splices, to form one
Complete image；Each decoupling grating includes multiple grating ontologies along light path successively, by adjusting each grating ontology
Diffraction efficiency realize expand and ensure extend emergent pupil brightness uniformity, so as to realize expand equipment exit pupil diameter
Effect.
Further alternative, the horizontal extension waveguide or vertical extension waveguide are array geometry optical waveguide, and array is several
What optical waveguide is provided with is respectively provided with the one-to-one entering light portion of eyepiece optical system, each entering light portion of array geometry optical waveguide
There are coupled reflection portion, array geometry optical waveguide to be additionally provided with and the one-to-one decoupling reflecting part in the coupled reflection portion, coupling
Reflecting part is used to the light beam that array geometry optical waveguide is injected in reflection so that the light beam meets the array geometry optical waveguide
Inner full-reflection condition；Decoupling reflecting part is by the reflection of corresponding coupled reflection portion and complete in array geometry optical waveguide by reflection
The light beam of reflection so that the light beam is unsatisfactory for the inner full-reflection condition of the array geometry optical waveguide and from array geometry light
Waveguide is projected, and each decoupling reflecting part is disposed proximate to, so that the edge for the image that each decoupling reflecting part reflects mutually splices,
To form a complete image；The decoupling reflecting part include it is multiple along light path set gradually can anti-permeable membrane
Layer, light be transferred to after entering array geometry optical waveguide this can anti-permeable membrane layer when, a part of light can instead can be saturating at this
Reflected in film layer, project array geometry optical waveguide, another part light can transmitted through can anti-permeable membrane layer to it is next can be anti-
Permeable membrane layer, and so on, so as to realize the effect for the exit pupil diameter for expanding equipment.
In order to ensure the uniformity of brightness, can according to actual conditions be arranged each can anti-permeable membrane layer reflection imitate
Rate, for example, by array geometry optical waveguide include 5 can be for anti-permeable membrane layer, according to biography of the light in horizontal extension waveguide
Defeated direction, can by the 1st can the reflectivity of anti-permeable membrane layer be set as 20%, by the 2nd can anti-permeable membrane layer reflectivity
Be set as 25%, by the 3rd can the reflectivity of anti-permeable membrane layer be set as 33%, by the 4th can anti-permeable membrane layer reflectivity
Be set as 50%, by the 5th can the reflectivity of anti-permeable membrane layer be set as 100%, in this way, each can anti-permeable membrane layer outgoing
Brightness is the 20% of total brightness.
The image source display system and corresponding eyepiece optical system may be disposed at the sight of nearly eye display optical system
The person's of examining human eye side can also be set to the offside of the observation human eye of nearly eye display optical system, can also be by different image sources
Display system and corresponding eyepiece optical system are respectively arranged at the both sides of nearly eye display optical system.
The topography that at least two image sources display system is shown can horizontal splicing and/or vertical splicing.Figure
Image source display system can be two, three or more.For example, aobvious for the image source display system of any two level splicing
The horizontal field of view angle of the topography shown, the topography that one of image source display system is shown is a °-b °, another figure
The horizontal field of view angle for the topography that image source display system is shown is b °-c ° or d °-a °, then the two image source display systems are aobvious
The horizontal field of view angle of the horizontal spliced image of topography shown is a °-c ° or d °-b °.In another example for any two
The topography that the image source display system vertically spliced is shown, the topography that one of image source display system is shown
Vertical field of view angle is a °-b °, the vertical field of view angle of the topography that another image source display system show for b °-c ° or d °-
A °, then the vertical field of view angle of the vertical spliced image of the topography that the two image source display systems are shown is a °-c °
Or d °-b °.
Another aspect of the present invention provides a kind of big visual field near-eye display device of binocular comprising the nearly eye of the big visual field of left eye is aobvious
Show that equipment and the big visual field near-eye display device of right eye, the big visual field near-eye display device of the left eye and the nearly eye of the big visual field of right eye are aobvious
Show the simple eye big visual field near-eye display device that equipment is described.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage：
Each image source display system is respectively used to the topography of one general image of display, last multiple offices
Portion's image mosaic constitutes complete general image, to increase the simple eye field angle of equipment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the simple eye big visual field near-eye display device of the present invention；
Fig. 2 is the structural schematic diagram using the simple eye big visual field near-eye display device of tablet diffraction optical waveguide；
Fig. 3 is the structural schematic diagram using the simple eye big visual field near-eye display device of tablet diffraction optical waveguide；
Fig. 4 is the structural representation of the simple eye big visual field near-eye display device with horizontal extension waveguide and vertical extension waveguide
Figure；
Fig. 5 is a kind of structural schematic diagram of nearly eye display optical system；
Fig. 6 is simple eye big visual field near-eye display device imaging schematic diagram；
Fig. 7 is another structural schematic diagram of nearly eye display optical system；
Fig. 8 is the third structural schematic diagram of nearly eye display optical system；
Fig. 9 is the structural schematic diagram of the optical waveguide component of the big visual field near-eye display device of binocular of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides simple eye big visual field near-eye display device, and the nearly eye of big visual field is realized by the way of splicing
Display.
First aspect of the embodiment of the present invention provides a kind of simple eye big visual field near-eye display device, as shown in Figure 1 comprising extremely
Few two image source display systems 1, the eyepiece optical system 2 being arranged in a one-to-one correspondence with described image source display system 1 and nearly eye
Display optical system 3, the image light that each image source display system 1 is sent out are penetrated after corresponding eyepiece optical system 2 is handled
Enter nearly eye display optical system 3, described image light is simple eye from injection observer after the injection of nearly eye display optical system 3, each
The image that the image light of the image source display system 1 is formed after the injection of nearly eye display optical system 3 mutually splices, shape
At a complete image.
To which the image that each image source display system 1 is respectively used in some angular field of view is shown, and spelled by image
It connects, increases the simple eye field angle of equipment.
It is simple eye that the light of real world injects observer after the nearly eye display optical system 3.So that of the invention
It can be used for augmented reality and show equipment, by the image superposition being spliced to form in real world, reach raising enhancing display
The technique effect of equipment field angle.
The image source display system 1 can be digital light processing (DLP) display, liquid crystal on silicon (LCOS) display
Any one in device, LCD display, OLED display, optical fiber scanning display and MEMS scan image display systems.
The nearly eye display optical system 3 be include tablet diffraction optical waveguide, array geometry optical waveguide or free form surface
In optical waveguide any one, two or more.
In some embodiments of the present invention, as shown in Figure 1, the nearly eye display optical system is tablet diffraction optical waveguide
311, which is provided with and the one-to-one entering light portion of eyepiece optical system, tablet diffraction optical waveguide 311
Each entering light portion be both provided with coupling grating 312, tablet diffraction optical waveguide 311 is additionally provided with and the coupling grating 312 1
One corresponding decoupling grating 313, coupling grating 312, which is used to the light beam coupling that eyepiece optical system 2 is emitted entering tablet, to spread out
Penetrate optical waveguide 311 so that the light beam meets the inner full-reflection condition of the tablet diffraction optical waveguide, with each coupling grating phase
Corresponding decoupling grating 313 so that the light beam be unsatisfactory for the inner full-reflection condition of the tablet diffraction optical waveguide and from tablet
Diffraction optical waveguide 311 projects, and each decoupling grating 313 is disposed proximate to, so that the image that each decoupling grating 313 reflects
Edge mutually splices, to form a complete image.Optionally, coupling grating 312 injects tablet diffraction optical waveguide by reflection
311 light beam so that the light beam meets the inner full-reflection condition of the tablet diffraction optical waveguide；Decoupling grating 313 is logical
Reflection is crossed by the corresponding reflection of coupling grating 312 and in the light beam of tablet diffraction light waveguide total internal reflection so that the light beam is discontented
The inner full-reflection condition of the foot tablet diffraction optical waveguide and projected from tablet diffraction optical waveguide 311.
It is further preferred that as shown in Fig. 2, the tablet diffraction optical waveguide includes the first list set gradually along light path
Coloured light waveguide 321, the second monochromatic light waveguide 322 and third monochromatic light waveguide 323, the coupling grating include being set along light path
The first monochromatic coupling grating 324 for being placed between the first monochromatic light waveguide 321 and the second monochromatic light waveguide 322 is arranged along light path
It the second monochromatic coupling grating 325 between the second monochromatic light waveguide 322 and third monochromatic light waveguide 323 and is set to along light path
The third monochrome coupling grating 326 of 323 rear side of third monochromatic light waveguide；The decoupling grating includes being set to along light path
The first monochromatic decoupling grating 327 between one monochromatic light waveguide 321 and the second monochromatic light waveguide 322 is set to second along light path
The second monochromatic decoupling grating 328 between monochromatic light waveguide 322 and third monochromatic light waveguide 323 and it is set to third list along light path
The third monochrome decoupling grating 329 of 323 rear side of coloured light waveguide；The monochromatic 324 and first monochromatic decoupling of coupling grating of described first
Grating 327 reflects the first monochromatic light and transmits the second homogeneous beam and third homogeneous beam, the second monochromatic coupling grating 325
The second homogeneous beam is reflected with the second monochromatic decoupling grating 328 and transmits the first homogeneous beam and third homogeneous beam, the
Three monochromatic coupling gratings 326 and third monochrome decoupling grating 329 reflect third homogeneous beam and transmit the first homogeneous beam
With the second homogeneous beam.First monochrome, the second monochrome and the third monochrome can be any one in tri- color of R, G, B, and
First is monochromatic, the second monochromatic and third monochrome color is different.It is respectively with first monochromatic, the second monochrome and third monochrome
R, for G and B, light beam first injects red optical waveguide, is reflected after the R light beams in the light beam via red coupling grating 324 and by R
Light beam injects red optical waveguide 321 so that R light beams meet the inner full-reflection condition of red optical waveguide 321；G light beams and B light beams
Green optical waveguide 322 is projected and injected from red coupling grating 324, reflects the G light in the light beam via green coupling grating 325
Green optical waveguide 322 is injected after beam and by G light beams so that G light beams meet the inner full-reflection condition of green optical waveguide 322；B light
Beam projects from green coupling grating 325 and injects blue optical waveguide 323, reflects the B in the light beam via blue coupling grating 326
Green optical waveguide 322 is injected after light beam and by B light beams so that B light beams meet the inner full-reflection condition of blue optical waveguide 323.
The blue reflection of decoupling grating 329 is reflected by blue coupling grating 326 and in the B light beams of 323 inner total reflection of blue optical waveguide so that
The B light beams are unsatisfactory for the inner full-reflection condition of blue optical waveguide 323 and are projected from blue optical waveguide 323, and penetrate successively
Green decoupling grating 328, green optical waveguide 322, red decoupling grating 327, red optical waveguide 321 project；Green decoupling grating
328 reflections are reflected by green coupling grating 325 and in the G light beams of 322 inner total reflection of green optical waveguide so that the G light beams are not
Meet the inner full-reflection condition of green optical waveguide 322 and projected from green optical waveguide 322, and penetrates red decoupling grating successively
327, red optical waveguide 321 projects；The red reflection of decoupling grating 327 is reflected by red coupling grating 324 and in red optical waveguide
The R light beams of 321 inner total reflections so that the R light beams are unsatisfactory for the inner full-reflection condition of red optical waveguide 321 and from red light
Waveguide 321 is projected.
In other embodiments of the present invention, the nearly eye display optical system is array geometry optical waveguide 331, is such as schemed
Shown in 3, array geometry optical waveguide 331 is provided with and the one-to-one entering light portion of eyepiece optical system, array geometry optical waveguide 331
Each entering light portion be both provided with coupled reflection portion 332, array geometry optical waveguide 331 is additionally provided with and the coupled reflection portion
332 one-to-one decoupling reflecting parts 333, coupled reflection portion 332 are used to the light that array geometry optical waveguide 331 is injected in reflection
Beam so that the light beam meets the inner full-reflection condition of the array geometry optical waveguide；Decoupling reflecting part 333 passes through reflection
It is reflected and in the light beam of array geometry optical waveguide inner total reflection by corresponding coupled reflection portion 332 so that the light beam is unsatisfactory for institute
It states the inner full-reflection condition of array geometry optical waveguide and is projected from array geometry optical waveguide 331, each decoupling reflecting part 333 is tight
Neighbour's setting, so that the edge for the image that each decoupling reflecting part 333 reflects mutually splices, to form a complete image.
In some embodiments of the present invention, as shown in figure 4, the nearly eye display optical system includes horizontal extension waveguide
341 with vertical extension waveguide 342, and the light beam projected through eyepiece optical system passes through the horizontal extension waveguide 341 in level side
It after expanding upwards, is carried out after being expanded in vertical direction using the vertical extension waveguide 342, projects vertical extension waveguide 342,
It is simple eye to inject observer.
To since the image light that image source display system is sent out is being extended by horizontal extension waveguide 341 with vertical
After waveguide 342, image light is all extended in the vertical direction and the horizontal direction, it is straight to expand the emergent pupil that nearly eye is shown
Diameter.
The horizontal extension waveguide 341 and vertical extension waveguide 342 can be tablet diffraction optical waveguide, array geometry light
Any one in waveguide or free form surface optical waveguide.
Further, in some embodiments of the present invention, the horizontal extension waveguide or vertical extension waveguide are spread out for tablet
Optical waveguide is penetrated, with reference to figure 1, which is provided with spreads out with the one-to-one entering light portion of eyepiece optical system, tablet
The each entering light portion for penetrating optical waveguide is both provided with coupling grating 312, and tablet diffraction optical waveguide is additionally provided with and the coupling grating
312 one-to-one decoupling gratings 313, coupling grating 312 are used to the light beam that tablet diffraction optical waveguide is injected in reflection so that institute
State the inner full-reflection condition that light beam meets the tablet diffraction optical waveguide；Decoupling grating 313 is coupled by reflection by corresponding
Grating 312 reflects and in the light beam of tablet diffraction light waveguide total internal reflection so that the light beam is unsatisfactory for the tablet diffraction light
The inner full-reflection condition of waveguide and from tablet diffraction optical waveguide project, each decoupling grating 313 is disposed proximate to, so that respectively
The edge for the image that decoupling grating 313 reflects mutually splices, to form a complete image；Each decoupling grating 313
Include multiple grating ontologies along light path successively, the diffraction efficiency realization by adjusting each grating ontology expands and ensures to extend
The brightness uniformity of emergent pupil, so as to realize the effect for the exit pupil diameter for expanding equipment.
It is further preferred that with reference to figure 2, the tablet diffraction optical waveguide includes the first monochrome set gradually along light path
Optical waveguide 321, the second monochromatic light waveguide 322 and third monochromatic light waveguide 323, the coupling grating include being arranged along light path
The first monochromatic coupling grating 324 between the first monochromatic light waveguide 321 and the second monochromatic light waveguide 322 is set to along light path
The second monochromatic coupling grating 325 between second monochromatic light waveguide 322 and third monochromatic light waveguide 323 and it is set to the along light path
The third monochrome coupling grating 326 of three monochromatic light waveguides, 323 rear side；The decoupling grating includes being set to first along light path
The first monochromatic decoupling grating 327 between monochromatic light waveguide 321 and the second monochromatic light waveguide 322, that second is set to along light path is single
The second monochromatic decoupling grating 328 between coloured light waveguide 322 and third monochromatic light waveguide 323 and it is set to third monochrome along light path
The third monochrome decoupling grating 329 of 323 rear side of optical waveguide；The monochromatic 324 and first monochromatic decoupling light of coupling grating of described first
Grid 327 reflect the first monochromatic light and transmit the second homogeneous beam and third homogeneous beam, the second 325 He of monochromatic coupling grating
Second monochromatic decoupling grating 328 reflects the second homogeneous beam and transmits the first homogeneous beam and third homogeneous beam, third
Monochromatic coupling grating 326 and third monochrome decoupling grating 329 reflect third homogeneous beam and transmit the first homogeneous beam and
Second homogeneous beam, described first the 327, second monochromatic decoupling grating 328 of monochromatic decoupling grating and third monochrome decoupling grating
329 include multiple grating ontologies along light path successively, and the diffraction efficiency realization by adjusting each grating ontology expands and ensures
The brightness uniformity for extending emergent pupil, so as to realize the effect for the exit pupil diameter for expanding equipment.
First monochrome, the second monochrome and the third monochrome can be any one in tri- color of R, G, B, and first is single
Color, the second monochromatic and third monochrome color are different.
By taking first monochromatic, the second monochrome and third monochrome are respectively R, G and B as an example, light beam first injects red optical waveguide
321, it is reflected after the R light beams in the light beam via red coupling grating 324 and R light beams is injected into red optical waveguide 321 so that R
Light beam meets the inner full-reflection condition of red optical waveguide 321；G light beams and B light beams are projected and are injected from red coupling grating 324
Green optical waveguide 322 reflects after the G light beams in the light beam via green coupling grating 325 and G light beams is injected green optical waveguide
322 so that G light beams meet the inner full-reflection condition of green optical waveguide 322；B light beams are projected and are penetrated from green coupling grating 325
Enter blue optical waveguide 323, reflected after the B light beams in the light beam via blue coupling grating 326 and B light beams are injected into green light wave
Lead 322 so that B light beams meet the inner full-reflection condition of blue optical waveguide 323.The blue reflection of decoupling grating 329 is by blue coupling
Closing light grid 326 reflect and in the B light beams of 323 inner total reflection of blue optical waveguide so that the B light beams are unsatisfactory for blue optical waveguide
323 inner full-reflection condition and projected from blue optical waveguide 323, and penetrate green decoupling grating 328, green optical waveguide successively
322, red decoupling grating 327, red optical waveguide 321 project；The green reflection of decoupling grating 328 is anti-by green coupling grating 325
It penetrates and in the G light beams of 322 inner total reflection of green optical waveguide so that be all-trans the inside that the G light beams are unsatisfactory for green optical waveguide 322
It penetrates condition and is projected from green optical waveguide 322, and projected successively through red decoupling grating 327, red optical waveguide 321；It is red
The reflection of decoupling grating 327 is reflected by red coupling grating 324 and in the R light beams of 321 inner total reflection of red optical waveguide so that described
R light beams are unsatisfactory for the inner full-reflection condition of red optical waveguide 321 and are projected from red optical waveguide 321.
In other embodiments of the present invention, the horizontal extension waveguide or vertical extension waveguide are array geometry light wave
It leads, refering to what is shown in Fig. 4, array geometry optical waveguide is provided with and the one-to-one entering light portion of eyepiece optical system, array geometry light
Each entering light portion of waveguide is both provided with coupled reflection portion 332, and array geometry optical waveguide is additionally provided with and the coupled reflection portion
332 one-to-one decoupling reflecting parts 333, coupled reflection portion 332 are used to the light beam that array geometry optical waveguide is injected in reflection, make
Obtain the inner full-reflection condition that the light beam meets the array geometry optical waveguide；Decoupling reflecting part 333 is by reflecting by right
Coupled reflection portion 332 is answered to reflect and in the light beam of array geometry optical waveguide inner total reflection so that the light beam is unsatisfactory for the battle array
The inner full-reflection condition of row geometry optical waveguide and projected from array geometry optical waveguide, each decoupling reflecting part 333 is disposed proximate to,
So that the edge for the image that each decoupling reflecting part 333 reflects mutually splices, to form a complete image；Described in each
Decoupling reflecting part 333 include it is multiple along light path set gradually can anti-permeable membrane layer, light enter array geometry optical waveguide
After be transferred to this can anti-permeable membrane layer when, a part of light can be reflected at this on anti-permeable membrane layer, project array geometry
Optical waveguide, another part light can transmitted through can anti-permeable membrane layer to it is next can anti-permeable membrane layer, and so on, so as to reality
Now expand the effect of the exit pupil diameter of equipment.
In order to ensure the uniformity of brightness, can according to actual conditions be arranged each can anti-permeable membrane layer reflection imitate
Rate, for example, by array geometry optical waveguide include 5 can be for anti-permeable membrane layer, according to biography of the light in horizontal extension waveguide
Defeated direction, can by the 1st can the reflectivity of anti-permeable membrane layer be set as 20%, by the 2nd can anti-permeable membrane layer reflectivity
Be set as 25%, by the 3rd can the reflectivity of anti-permeable membrane layer be set as 33%, by the 4th can anti-permeable membrane layer reflectivity
Be set as 50%, by the 5th can the reflectivity of anti-permeable membrane layer be set as 100%, in this way, each can anti-permeable membrane layer outgoing
Brightness is the 20% of total brightness.
In the embodiment of the present invention, the image source display system and corresponding eyepiece optical system may be disposed at nearly eye and show
Show observer's human eye side of optical system, as shown in Figure 1, shown in Figure 5；It can also be by different image source display systems and corresponding mesh
Mirror optical system is respectively arranged at the both sides of nearly eye display optical system, as shown in Figure 2；Similarly, it is aobvious that nearly eye can also be set to
Show the offside of the observation human eye of optical system.
In the embodiment of the present invention, image source display system can be two, three or more.Each image source is aobvious
Showing that system shows the topography of a general image, last multiple topographies are spliced to form complete general image, to
Increase the simple eye field angle of equipment.The topography that at least two image sources display system is shown can horizontal splicing and/
Or vertical splicing.For example, for the topography that the image source display system of any two level splicing is shown, one of figure
The horizontal field of view angle for the topography that image source display system is shown is a °-b °, the part that another image source display system is shown
The horizontal field of view angle of image is b °-c ° or d °-a °, then after topography's level splicing that the two image source display systems are shown
The horizontal field of view angle of image be a °-c ° or d °-b °.In another example showing system for the image source that any two is vertically spliced
Unite the topography shown, and the vertical field of view angle for the topography that one of image source display system is shown is a °-b °, another
The vertical field of view angle for the topography that a image source display system is shown is b °-c ° or d °-a °, then the two image sources display system
The unite vertical field of view angle of the vertical spliced image of topography of display is a °-c ° or d °-b °.
Such as it is two that Fig. 5, which gives image source display system quantity, the Local map that two image source display systems are shown
As the nearly eye display optical system structure chart of the embodiment of horizontal splicing, one of topography shows optical system by nearly eye
Corresponding field angle arrives maximum field of view angle (such as 40 °) for 0 degree after system transmission, another image is passed by nearly eye display optical system
Corresponding field angle be negative maximum field of view angle (such as -40 °) to 0 degree after defeated, and positive and negative represents corresponding direction, just by splicing
80 ° of field angle may be implemented, final imaging schematic diagram is as shown in Figure 6.
It is four as Fig. 7 gives image source display system quantity, the topography that four image source display systems are shown
In the nearly eye display optical system structure chart of the embodiment of matrix splicing, which had both increased horizontal field of view angle, had also increased
Vertical field of view angle.It is four as Fig. 8 gives image source display system quantity, the part that four image source display systems are shown
The structure chart of the nearly eye display optical system of the embodiment of image level splicing, to increase horizontal field of view angle.
Shown in the embodiment provided such as Fig. 5, Fig. 7-Fig. 8, the nearly eye display optical system in the present invention be one at
The optical waveguide component of type makes nearly eye by processing corresponding waveguiding structure at the required position of integrally formed optical waveguide component
The local required function of display optical system.
Another aspect of the present invention provides a kind of big visual field near-eye display device of binocular comprising the nearly eye of the big visual field of left eye is aobvious
Show that equipment and the big visual field near-eye display device of right eye, the big visual field near-eye display device of the left eye and the nearly eye of the big visual field of right eye are aobvious
Show the simple eye big visual field near-eye display device that equipment is described.A kind of the nearly eye of the big visual field of left eye is shown as shown in figure 9, giving
The nearly eye display optical system of the nearly eye display optical system and the big visual field near-eye display device of right eye that show equipment integrates
The structural schematic diagram of the optical waveguide component of structure.
It should be noted that the present invention will be described rather than limits the invention for above-described embodiment, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference mark between bracket should not be configured to limitations on claims.Word "comprising" or " comprising " are not arranged
Except there are element or steps not listed in the claims.Word "a" or "an" before element does not exclude the presence of more
A such element.In the unit claims listing several devices, several in these devices can be by same
One hardware branch embodies.The use of word first, second, and third does not indicate that any sequence, can be by these lists
Word is construed to title.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage：
Each image source display system is respectively used to the topography of one general image of display, last multiple offices
Portion's image mosaic constitutes complete general image, to increase the simple eye field angle of equipment.
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. simple eye big visual field near-eye display device, which is characterized in that including at least two image source display systems and described image
The eyepiece optical system and nearly eye display optical system that source display system is arranged in a one-to-one correspondence, each image source display system are sent out
Image light inject nearly eye display optical system after corresponding eyepiece optical system processing, described image light is aobvious from nearly eye
Injection observer is simple eye after showing optical system injection, and the image light of each image source display system shows light through nearly eye
The image that system is formed after projecting mutually splices, and forms a complete image.
2. simple eye big visual field near-eye display device as described in claim 1, which is characterized in that the image source display system
Can be that DLP is shown, LCOS display, LCD display, OLED display, optical fiber scanning display and MEMS scan images are shown
Show any one in system.
3. simple eye big visual field near-eye display device as described in claim 1, which is characterized in that the nearly eye shows optical system
System be include in tablet diffraction optical waveguide, array geometry optical waveguide or free form surface optical waveguide any one, two or more.
4. simple eye big visual field near-eye display device as claimed in claim 3, which is characterized in that the nearly eye shows optical system
System is tablet diffraction optical waveguide, and tablet diffraction optical waveguide is provided with spreads out with the one-to-one entering light portion of eyepiece optical system, tablet
The each entering light portion for penetrating optical waveguide is both provided with coupling grating, and tablet diffraction optical waveguide is additionally provided with the coupling grating one by one
Corresponding decoupling grating, coupling grating, which is used to the light beam coupling that eyepiece optical system is emitted entering tablet diffraction optical waveguide, to be made
Obtain the inner full-reflection condition that the light beam meets the tablet diffraction optical waveguide, decoupling grating corresponding with each coupling grating
The light beam is set to be unsatisfactory for the inner full-reflection condition of the tablet diffraction optical waveguide and be projected from tablet diffraction optical waveguide, it is each
Decoupling grating is disposed proximate to.
5. simple eye big visual field near-eye display device as claimed in claim 3, which is characterized in that the nearly eye shows optical system
System is array geometry optical waveguide, array geometry optical waveguide be provided with the one-to-one entering light portion of eyepiece optical system, array is several
Each entering light portion of what optical waveguide is both provided with coupled reflection portion, and array geometry optical waveguide is additionally provided with and the coupled reflection portion
One-to-one decoupling reflecting part, coupled reflection portion are used to the light beam that array geometry optical waveguide is injected in reflection so that the light
Beam meets the inner full-reflection condition of the array geometry optical waveguide；Decoupling reflecting part is by reflection by corresponding coupled reflection portion
It reflects and in the light beam of array geometry optical waveguide inner total reflection so that the light beam is unsatisfactory for the interior of the array geometry optical waveguide
Portion's total reflection condition and projected from array geometry optical waveguide, each decoupling reflecting part is disposed proximate to.
6. simple eye big visual field near-eye display device as described in claim 1, which is characterized in that the nearly eye shows optical system
System includes horizontal extension waveguide and vertical extension waveguide, and the light beam projected through eyepiece optical system passes through the horizontal extension waveguide
It after expanding in the horizontal direction, is carried out after being expanded in vertical direction using the vertical extension waveguide, projects vertical extension wave
It leads, it is simple eye to inject observer.
7. simple eye big visual field near-eye display device as claimed in claim 6, which is characterized in that the horizontal extension waveguide and
Vertical extension waveguide can be any one in tablet diffraction optical waveguide, array geometry optical waveguide or free form surface optical waveguide.
8. simple eye big visual field near-eye display device as claimed in claim 7, which is characterized in that the horizontal extension waveguide or
Vertical extension waveguide is tablet diffraction optical waveguide, and tablet diffraction optical waveguide is provided with and the one-to-one entering light of eyepiece optical system
Each entering light portion in portion, tablet diffraction optical waveguide is both provided with coupling grating, and tablet diffraction optical waveguide is additionally provided with and the coupling
The one-to-one decoupling grating of closing light grid, coupling grating are used to the light beam that tablet diffraction optical waveguide is injected in reflection so that described
Light beam meets the inner full-reflection condition of the tablet diffraction optical waveguide；Decoupling grating is anti-by corresponding coupling grating by reflection
It penetrates and in the light beam of tablet diffraction light waveguide total internal reflection so that the light beam is unsatisfactory for the inside of the tablet diffraction optical waveguide
Total reflection condition and projected from tablet diffraction optical waveguide, each decoupling grating is disposed proximate to, and each decoupling grating wraps
Containing multiple grating ontologies along light path successively, the diffraction efficiency realization by adjusting each grating ontology expands and ensures to extend emergent pupil
Brightness uniformity.
9. simple eye big visual field near-eye display device as claimed in claim 7, which is characterized in that the horizontal extension waveguide or
Vertical extension waveguide is array geometry optical waveguide, and array geometry optical waveguide is provided with and the one-to-one entering light of eyepiece optical system
Portion, each entering light portion of array geometry optical waveguide are both provided with coupled reflection portion, array geometry optical waveguide be additionally provided with it is described
The one-to-one decoupling reflecting part in coupled reflection portion, coupled reflection portion are used to the light beam that array geometry optical waveguide is injected in reflection,
So that the light beam meets the inner full-reflection condition of the array geometry optical waveguide；Decoupling reflecting part is by reflecting by corresponding to
Coupled reflection portion reflects and in the light beam of array geometry optical waveguide inner total reflection so that the light beam is unsatisfactory for the array geometry
The inner full-reflection condition of optical waveguide and projected from array geometry optical waveguide, each decoupling reflecting part is disposed proximate to；It is each described
Decoupling reflecting part include it is multiple along light path set gradually can anti-permeable membrane layer, light enter array geometry optical waveguide after
Be transferred to this can anti-permeable membrane layer when, a part of light can be reflected at this on anti-permeable membrane layer, project array geometry light
Waveguide, another part light can transmitted through can anti-permeable membrane layer to it is next can anti-permeable membrane layer.
10. a kind of big visual field near-eye display device of binocular is standby, which is characterized in that including the big visual field near-eye display device of left eye and the right side
The big visual field near-eye display device of eye, the big visual field near-eye display device of the left eye and the big visual field near-eye display device of right eye are
Simple eye big visual field near-eye display device as described in any one of claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149439.9A CN108803022A (en) | 2018-02-13 | 2018-02-13 | Simple eye big visual field near-eye display device and the big visual field near-eye display device of binocular |
| PCT/CN2019/074428 WO2019157987A1 (en) | 2018-02-13 | 2019-02-01 | Monocular large field-of-view near-eye display device and binocular large field-of-view near-eye display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810149439.9A CN108803022A (en) | 2018-02-13 | 2018-02-13 | Simple eye big visual field near-eye display device and the big visual field near-eye display device of binocular |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108803022A true CN108803022A (en) | 2018-11-13 |
Family
ID=64094567
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810149439.9A Pending CN108803022A (en) | 2018-02-13 | 2018-02-13 | Simple eye big visual field near-eye display device and the big visual field near-eye display device of binocular |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108803022A (en) |
| WO (1) | WO2019157987A1 (en) |
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Application publication date: 20181113 |