CN208092344U - A kind of nearly eye display optical system of simple eye big visual field and head-mounted display apparatus - Google Patents
A kind of nearly eye display optical system of simple eye big visual field and head-mounted display apparatus Download PDFInfo
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- CN208092344U CN208092344U CN201820258297.5U CN201820258297U CN208092344U CN 208092344 U CN208092344 U CN 208092344U CN 201820258297 U CN201820258297 U CN 201820258297U CN 208092344 U CN208092344 U CN 208092344U
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Abstract
The utility model discloses a kind of nearly eye display optical system of simple eye big visual field and head-mounted display apparatus,Including planar optics waveguide,The relaying grating and output coupling grating that planar optics waveguide has multiple input coupling grating and is arranged in a one-to-one correspondence with each input coupling grating,Each input coupling grating is used to will be corresponding and with corresponding sub- field angle and enter planar optics waveguide with whole light beam couplings of the associated image of entrance pupil,And each light beam is guided to corresponding relaying grating,Relaying grating passes through each light beam of diffraction,Each light beam is directed to corresponding output coupling grating,Output coupling grating is by each light beam to external diffraction,Each output coupling grating can be watched from same emergent pupil to the image with corresponding sub- field angle of external diffraction and mutually splicing,Constitute a complete image with corresponding big visual angle,Pass through image mosaic,Increase the simple eye field angle of equipment.
Description
Technical field
The utility model is related to augmented reality display technology field, more particularly to a kind of nearly eye of simple eye big visual field shows optics
System and head-mounted display apparatus.
Background technology
Augmented reality (AR) shows that equipment allows users to watch week through the transparent or semitransparent display of equipment
The environment enclosed, and also see that the image that display generates is covered on ambient enviroment.This kind of equipment is usually that wear-type is aobvious
Show device (HMD) glasses or other wearable display equipment.Equipment usually transmits image, the light of display using optical waveguide
It needs to be coupled into optical waveguide by input coupling portion, while needing setting intermediate member to carry out extended pupil again in optical waveguide,
The structure of existing input coupling portion and intermediate member makes the diagonal angles of visual field of the image of input no more than 35 degree, especially
The restriction of intermediate member structure, thus existing augmented reality shows the diagonal angles of visual field of equipment usually only 14-34 degree.Also have
The prior art is carried out by will show that the image of equipment input splits into two-way in optical waveguide by an input coupling portion
It propagates, and is projected by output coupling portion to assemble, to reach the effect for increasing augmented reality and showing equipment diagonal angles of visual field
Fruit.But this technology is limited by the structure in input coupling portion, is only capable of extending to field angle close to 70 degree, cannot still reach people
To augmented reality show the big visual field of equipment expectation, cannot meet the needs of consumption market.And the image in input coupling portion
It splits and the convergence in output coupling portion brings and assembles the non-uniform technical problem of brightness of image again.
Utility model content
The purpose of this utility model is to provide a kind of simple eye big visual field near-eye display device and head-mounted display apparatus, use
Realize that the nearly eye of big visual field is shown in a manner of using splicing.
In order to realize above-mentioned purpose of utility model, it is close that the utility model embodiment first aspect provides a kind of simple eye big visual field
Eye display optical system, including planar optics waveguide, planar optics waveguide have multiple input coupling grating and with each input
The relaying grating and output coupling grating that coupling grating is arranged in a one-to-one correspondence, each input coupling grating is used to will be corresponding
And with corresponding sub- field angle and enter planar optics waveguide with whole light beam couplings of the associated image of entrance pupil, pass through diffraction
Each light beam makes the light beam meet the inner full-reflection condition of the planar optics waveguide in planar optics waveguide, and will
Each light beam is guided to corresponding relaying grating, and each light beam is directed to accordingly by relaying grating by each light beam of diffraction
Output coupling grating, output coupling grating is by each light beam to external diffraction so that each light beam is unsatisfactory for planar optics waveguide
Inner full-reflection condition, the output coupling grating leave planar optics waveguide to whole light beams of external diffraction and form image,
It is corresponding and have that the image and corresponding input coupling grating are coupled into the associated image of whole light beams of planar optics waveguide
Corresponding sub- field angle；
Each output coupling grating can be from quilt from same emergent pupil to the image with corresponding sub- field angle of external diffraction
Viewing and mutually splicing constitute a complete image with corresponding big visual angle, and the big field angle of the complete image is by each defeated
The corresponding sub- field angle of image for going out coupling grating to external diffraction merges to obtain.
To which the utility model is the light beam point of image related to entrance pupil by multiple and with corresponding sub- field angle
It is not coupled into planar optics waveguide from the different input coupling gratings of planar optics waveguide, the light beam of different images is by respectively opposite
It is directed to emergent pupil together after the relaying grating and output coupling grating answered, so as to be observed simultaneously in emergent pupil
The multiple images for projecting planar optics waveguide, the image that each image is respectively used in certain sub- visual field scope show,
By image mosaic, increase the simple eye field angle of equipment.Due to each related to entrance pupil and with corresponding sub- field angle
The light beam of image is coupled into planar optics waveguide by an independent input coupling grating respectively, and uses and input coupling light
The relaying grating and output coupling grating that grid are arranged in a one-to-one correspondence independently guide the light beam of each image, thus input
The quantity of image related to entrance pupil and with corresponding sub- field angle is unrestricted, each output coupling of the utility model
Grating can export maximum 35 ° or so of diagonal angles of visual field, thus the utility model can integrally obtain in target zone
All field angles, be far longer than existing equipment attainable 70 ° of the limit.An output is also not present in the utility model simultaneously
Coupling grating needs the problem of assembling two incident light electron guns, and the brightness of image uniformity of output does not need additional adjusting
Component is modulated the image of input.
The number of image related to entrance pupil and with corresponding sub- field angle can be two, three, four or appoint
Anticipate multiple, only need to be arranged in planar optics waveguide respective numbers input coupling grating and corresponding relaying grating with
Output coupling grating.Each image related to entrance pupil and with corresponding sub- field angle is a general image
Topography, last multiple topographies are spliced to form complete general image, to increase the simple eye field angle of equipment, arbitrarily
Two related to entrance pupil and images with corresponding sub- field angle can horizontal splicing or vertical splicing.According to making for equipment
With needs, multiple output coupling gratings can be arranged in the form of arbitrarily needing, such as：Can in the horizontal direction according to
Secondary arrangement can also be vertically arranged in order, can also be arranged in arrays etc., go out to realize each output coupling grating
The horizontal splicing for the image penetrated, vertically splicing, matrix splicing etc..
Each light beam carry out level that the relaying grating is configured as being directed onto relaying grating expands and vertically expands
One kind in beam expands, and each light beam that the output coupling grating is configured as being directed onto output coupling grating carries out water
Flat expand expands with the another kind in vertically expanding.
It refers to that will be incident to each light beam of grating along the width of the grating that the level, which is expanded or vertically expanded,
Direction is directed on multiple extended areas of the grating, and multiple extended areas of grating realize the extension to each light beam, with
The multiple parallel beamlets for forming the light beam, achieve the effect that the exit pupil diameter of extension light beam.The light expanded for carry out level
For grid, multiple extended areas of the grating are set gradually in the horizontal direction, for the grating vertically expanded, the light
Multiple extended areas of grid are vertically set gradually.Diffraction efficiency realization by adjusting each expansion area expands and ensures to expand
Put on display the brightness uniformity of pupil.
Further, the complete graph of respectively related to the entrance pupil and image with corresponding sub- field angle in its composition
Output coupling grating as in corresponding to the residing orientation image related with entrance pupil and with corresponding sub- field angle to being somebody's turn to do
Residing orientation is consistent in planar optics waveguide.So that the figure that each output coupling grating is formed to the light beam of external diffraction
It is spliced to form complete image desired position as being in.
Further alternative, each light beam that relaying grating is directed to relaying grating by diffraction makes the light beam exist
Meet the inner full-reflection condition of the planar optics waveguide in planar optics waveguide, and each light beam is guided to corresponding defeated
Go out coupling grating.
The nearly eye display optical system of above-mentioned simple eye big visual field can be incorporated into mixed reality and show equipment or augmented reality
It shows in equipment, but not limited to this.The single embodiment of the nearly eye display optical system of above-mentioned simple eye big visual field can be supplied to use
Each in the left eye and right eye at family.Thus on the other hand the utility model provides a kind of head-mounted display apparatus, including upper
The nearly eye display optical system of any one simple eye big visual field stated and the component of wearing for being worn on user's head, it is simple eye to regard greatly
The nearly eye display optical system in field, which is worn on component described in and is oriented its output coupling grating, directs the light beam into pendant
On the eyes of wearer.
The described head-mounted display apparatus tool is there are one the nearly eye display optical system of simple eye big visual field, the nearly eye of simple eye big visual field
Display optical system is oriented its output coupling grating and directs the light beam on the left eye or right eye of wearer.
For the described head-mounted display apparatus tool there are two the nearly eye display optical system of simple eye big visual field, one of them is simple eye big
The nearly eye display optical system of visual field is oriented its output coupling grating and directs the light beam on the left eye of wearer, another
The nearly eye display optical system of simple eye big visual field is oriented its output coupling grating and directs the light beam on the right eye of wearer.
It is described to wear component to include frame, the helmet or headband etc. be worn on the component in account.
One or more technical solution in the utility model embodiment, at least has the following technical effect that or excellent
Point：
Each output coupling grating can be from quilt from same emergent pupil to the image with corresponding sub- field angle of external diffraction
Viewing and mutually splicing constitute a complete image with corresponding big visual angle, so as to be observed simultaneously in emergent pupil
The multiple images for projecting planar optics waveguide, the image that each image is respectively used in certain sub- visual field scope show,
By image mosaic, increase the simple eye field angle of equipment.
Description of the drawings
Fig. 1 is a kind of plan structure signal of embodiment of the nearly eye display optical system of simple eye big visual field of the utility model
Figure；
Fig. 2 is the planar optics waveguiding structure schematic diagram of embodiment illustrated in fig. 1；
Fig. 3 is the left view structural representation of embodiment illustrated in fig. 1；
Fig. 4 is the planar optics wave of another embodiment of the nearly eye display optical system of simple eye big visual field of the utility model
Guide structure schematic diagram；
Fig. 5 is the planar optics wave of the third embodiment of the nearly eye display optical system of simple eye big visual field of the utility model
Guide structure schematic diagram；
Fig. 6 is the planar optics wave of the 4th kind of embodiment of the nearly eye display optical system of simple eye big visual field of the utility model
Guide structure schematic diagram；
Fig. 7 is that the structure for the nearly eye display optical system of simple eye big visual field that graphics sources are divided into planar optics waveguide both sides is shown
It is intended to.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Specifically, as shown in Figure 1, Figure 2, Figure 3 shows, the utility model embodiment provides a kind of nearly eye of simple eye big visual field and shows light
System, including planar optics waveguide, planar optics waveguide 13 have multiple input coupling grating 131 and with each input coupling
The relaying grating 132 and output coupling grating 133 that grating 131 is arranged in a one-to-one correspondence, each input coupling grating 131 be used to by
It is corresponding and with corresponding sub- field angle and enter planar optics waveguide with whole light beam couplings of the associated image of entrance pupil
13, make the inside that the light beam meets the planar optics waveguide in planar optics waveguide 13 complete by each light beam of diffraction
Conditioned reflex, and each light beam is guided to corresponding relaying grating 132, relaying grating 132, will be every by each light beam of diffraction
One light beam is directed to corresponding output coupling grating 133, and output coupling grating 133 is by each light beam to external diffraction so that each
Light beam is unsatisfactory for the inner full-reflection condition of planar optics waveguide, whole light beams of the output coupling grating 133 to external diffraction
It leaves planar optics waveguide 13 and forms image, which is coupled into planar optics waveguide with corresponding input coupling grating 131
Whole associated images of light beam are corresponding and with corresponding sub- field angle；
Each output coupling grating 133 can be from same emergent pupil to the image with corresponding sub- field angle of external diffraction
It is watched and mutually splicing, composition one has the complete image at corresponding big visual angle, the big field angle of the complete image is by each
The corresponding sub- field angle of image of output coupling grating 133 to external diffraction merges to obtain.
To which the utility model is the light beam point of image related to entrance pupil by multiple and with corresponding sub- field angle
It is not coupled into planar optics waveguide from the different input coupling gratings of planar optics waveguide, the light beam of different images is by respectively opposite
It is directed to emergent pupil together after the relaying grating and output coupling grating answered, so as to be observed simultaneously in emergent pupil
The multiple images for projecting planar optics waveguide, the image that each image is respectively used in certain sub- visual field scope show,
By image mosaic, increase the simple eye field angle of equipment.Due to each related to entrance pupil and with corresponding sub- field angle
The light beam of image is coupled into planar optics waveguide by an independent input coupling grating respectively, and uses and input coupling light
The relaying grating and output coupling grating that grid are arranged in a one-to-one correspondence independently guide the light beam of each image, thus input
The quantity of image related to entrance pupil and with corresponding sub- field angle is unrestricted, each output coupling of the utility model
Grating can export maximum 35 ° or so of diagonal angles of visual field, thus the utility model can integrally obtain in target zone
All field angles, be far longer than existing equipment attainable 70 ° of the limit.An output is also not present in the utility model simultaneously
Coupling grating needs the problem of assembling two incident light electron guns, and the brightness of image uniformity of output does not need additional adjusting
Component is modulated the image of input.
As shown in Fig. 2, Fig. 4, Fig. 5, Fig. 6, the number of image related to entrance pupil and with corresponding sub- field angle can
Think two, three, four or any number of, only need to be arranged in planar optics waveguide the input coupling grating of respective numbers with
And corresponding relaying grating and output coupling grating.It is each described related to entrance pupil and with accordingly sub- field angle
Image be a general image topography, last multiple topographies are spliced to form complete general image, to increase
The simple eye field angle of big equipment, related to the entrance pupil and image with corresponding sub- field angle of any two horizontal can splice
Or vertical splicing.According to the use needs of equipment, multiple output coupling gratings 133 can in the form of arbitrarily needing into
Row arrangement, such as：It can be arranged in order, can also vertically be arranged in order in the horizontal direction, can also be arranged in arrays etc.,
Horizontal splicing, vertical splicing, matrix splicing etc. to realize the image that each output coupling grating 133 is emitted.For example, for
The image related to entrance pupil and having corresponding sub- field angle of any two level splicing, the level of one of image regard
Rink corner is a °-b °, and the horizontal field of view angle of another image is b °-c ° or d °-a °, the two images pass through planar optics waveguide not
With input coupling grating, relaying grating and the conduction of output coupling grating, and two output coupling gratings are horizontally arranged, then this
The horizontal field of view angle for the image that the image level of two output coupling gratings outgoing splices is a °-c ° or d °-b °.Example again
Such as, the image related to entrance pupil and that there is corresponding sub- field angle vertically spliced for any two, one of image
Vertical field of view angle be a °-b °, the vertical field of view angle of another image is b °-c ° or d °-a °, then the two images pass through tablet
The different input coupling grating of optical waveguide, relaying grating and the conduction of output coupling grating, and two output coupling gratings hang down
In line row, then it is a °-c ° that the image of the two output coupling gratings outgoing, which vertically splices the horizontal field of view angle of obtained image,
Or d °-b °.Similarly, multiple topography's splicings can obtain target level field angle and target vertical field angle.
Such as shown in Fig. 1-Fig. 3, the quantity for giving image related to entrance pupil and with corresponding sub- field angle is
Two, two output coupling gratings 133 arrange in the horizontal direction, two outgoing image level splicing embodiment structure
Figure, corresponding field angle is zero degree to maximum horizontal after the image of one of image source 11 is transmitted by planar optics waveguide 13
Field angle (such as 40 °), corresponding field angle be to bear after the image of another image source 11 is transmitted by planar optics waveguide 13
Maximum horizontal field angle arrives zero degree (such as -40 °), and positive and negative represents corresponding direction, and 80 ° of visual field can be realized by splicing
Angle.
As Fig. 4 quantity for giving image related to entrance pupil and with corresponding sub- field angle is four, four it is defeated
Go out the structure chart for the embodiment that coupling grating 133 is arranged in arrays, four images being emitted are in matrix splicing, which both increased
Big horizontal field of view angle, also increases vertical field of view angle.As Fig. 5,6 give related to entrance pupil and have corresponding sub- visual field
The quantity of the image at angle is four, four output coupling gratings 133 are arranged in order in the horizontal direction, four image levels being emitted
The structure chart of the embodiment of splicing, to increase horizontal field of view angle.
Preferably, output coupling grating 133 is located at the centre position of planar optics waveguide 13 as possible, but it is not limited to
This.Input coupling grating 131 can be set to any position of planar optics waveguide 13, be not restricted by, but match for convenience
The light engine for emitting image beam is set, and reduces the influence to user's visual field as possible, input coupling grating 131 can be set
It is placed in the edge or edge of planar optics waveguide 13.
The relaying grating 132 be configured as being directed onto relaying grating 132 each light beam carry out level expand and
One kind in vertically expanding expands, and the output coupling grating 133 is configured as being directed onto the every of output coupling grating 133
Another kind during one light beam carry out level is expanded and vertically expanded expands.
It refers to that will be incident to each light beam of grating along the width of the grating that the level, which is expanded or vertically expanded,
Direction is directed on multiple extended areas of the grating, and multiple extended areas of grating realize the extension to each light beam, with
The multiple parallel beamlets for forming the light beam, achieve the effect that the exit pupil diameter of extension light beam.The light expanded for carry out level
For grid, multiple extended areas of the grating are set gradually in the horizontal direction, for the grating vertically expanded, the light
Multiple extended areas of grid are vertically set gradually.Diffraction efficiency realization by adjusting each expansion area expands and ensures to expand
Put on display the brightness uniformity of pupil.
Further, the complete graph of respectively related to the entrance pupil and image with corresponding sub- field angle in its composition
Output coupling grating as in corresponding to the residing orientation image related with entrance pupil and with corresponding sub- field angle to being somebody's turn to do
133 orientation residing in planar optics waveguide 13 are consistent.So that light beam of each output coupling grating 133 to external diffraction
The image of formation, which is in, is spliced to form complete image desired position.
It is further alternative, relaying grating 132 be directed to by diffraction relaying grating 132 each light beam make it is described
Light beam meets the inner full-reflection condition of the planar optics waveguide in planar optics waveguide 13, and by each light beam guide to
Corresponding output coupling grating 133.
The output coupling grating 133 of planar optics waveguide 13 is configured in the simple eye front of user, to be formed to user's list
The visible image of eye.Planar optics waveguide 13 is substantially transparent, so that user not only can watch entrance pupil correlation simultaneously
Image with corresponding sub- field angle can also penetrate planar optics waveguide 13 and watch the image from real world.To make
The utility model can be used for augmented reality show equipment reach by the image superposition being spliced to form in real world
Improve the technique effect that enhancing shows equipment field angle.
After being relative to the location of planar optics waveguide 13 with eyes of user, the planar optics waveguide 13 includes
Former and later two surfaces being mutually parallel.Input coupling grating 131, relaying grating 132 and the output coupling of planar optics waveguide 13
Grating 133 can be laid in the surface or inside of planar optics waveguide 13.Input coupling grating 131, relaying grating 132 and output
Coupling grating 133 can be transmission grating or reflecting grating, and different and light path according to above-mentioned grating installation position need to select
With the grating of respective type.
The light beam of the image related to entrance pupil and with corresponding sub- field angle is provided by light engine, light engine
Including image source 11 and eyepiece optics device 12, image source 11 includes micro-display, and micro-display can be that digital light is handled
(DLP) display, liquid crystal on silicon (LCOS) display, LCD display, OLED display, optical fiber scanning display and MEMS are swept
Retouch any one in image display system.The preferred micro-display uses optical fiber scanning display, with volume
Small, light-weight feature enables to use in conjunction with the objective feature for needing to configure multiple images source 11 in the utility model
The practicability of the equipment of the utility model, convenience are obviously improved.And similar digital light processing (DLP) display, silicon substrate
Liquid crystal (LCOS) display, LCD display, OLED display, optical fiber scanning display and MEMS scan image display systems are equal
Have the characteristics that modular construction is complicated, volume is big, weight is big, a display system or module using an aforementioned display device just
With sizable volume and weight, especially for helmet, a display system uses two or more above-mentioned displays
Large volume that device is brought, big weight cannot be easily accepted by a user.
The eyepiece optics device 12 generally comprises collimation lens, is used to amplify and is imaged and emits image source 11
Whole light beams are collimated, and whole light beams after collimation are injected planar optics waveguide 13, further, the whole after collimation
The input coupling grating 131 of light beam directive planar optics waveguide 13.The area of input coupling grating 131 is more than eyepiece optics device
12 project light beams diameter, to ensure eyepiece optics device 12 be emitted, be used to form the image with respective field of vision angle
Whole light beam couplings enter planar optics waveguide 13.
The nearly eye display optical system of above-mentioned simple eye big visual field can be incorporated into mixed reality and show equipment or augmented reality
It shows in equipment, but not limited to this.The single embodiment of the nearly eye display optical system of above-mentioned simple eye big visual field can be supplied to use
Each in the left eye and right eye at family.Thus on the other hand the utility model provides a kind of head-mounted display apparatus, including upper
The nearly eye display optical system of any one simple eye big visual field stated and the component of wearing for being worn on user's head, it is simple eye to regard greatly
The nearly eye display optical system in field, which is worn on component described in and is oriented its output coupling grating 133, to be directed the light beam into
On the eyes of wearer.
Described wearing also sets up multiple light engines on component, each light engine is used to be formed described with entrance pupil phase
Close and have the light beam of the image of corresponding sub- field angle.
The described head-mounted display apparatus tool is there are one the nearly eye display optical system of simple eye big visual field, the nearly eye of simple eye big visual field
Display optical system is oriented its output coupling grating 133 and directs the light beam on the left eye or right eye of wearer.
For the described head-mounted display apparatus tool there are two the nearly eye display optical system of simple eye big visual field, one of them is simple eye big
The nearly eye display optical system of visual field is oriented its output coupling grating 133 and directs the light beam on the left eye of wearer, in addition
The nearly eye display optical system of one simple eye big visual field is oriented the right side that its output coupling grating 133 directs the light beam into wearer
On eye.
A planar optics wave is shared as the nearly eye display optical system of the simple eye big visual field of a preferred embodiment two
13 are led, being then respectively arranged to the nearly eye of two simple eye big visual fields at the required position of the planar optics waveguide 13 shows optical system
Input coupling grating 131, relay part 132, the output coupling grating 133 of system.
It is described to wear component to include frame, the helmet or headband etc. be worn on the component in account.
The light engine can be located at the side for wearing component, be located at the outside of two eyes of user；It can also
Positioned at the top of the bridge of the nose of user；It can also be located above or below two eyes of user.Being preferably located at does not influence to use
The position in the family visual field.Since the image source 11 and its corresponding eyepiece optics device 12 of the application can both be located at planar optics wave
Lead 13 rear side, as shown in fig. 7, can also be located at planar optics waveguide 13 front side, as shown in Figure 1, thus can be easily
Required amount of image source 11 and its corresponding eyepiece optics device 12 are set on wearing component.Further, as preferred
Image source 11, the feature that optical fiber scanning display is small, light-weight so that the practicability of the utility model further carries
It rises so that the head-mounted display apparatus of the utility model has good display performance and wearing comfort simultaneously.
The utility model is limited it should be noted that above-described embodiment illustrates rather than the utility model,
And those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In right
In it is required that, any reference mark between bracket should not be configured to limitations on claims.Word "comprising" or " packet
Include " do not exclude the presence of element or step not listed in the claims.Word "a" or "an" before element is not arranged
Except there are multiple such elements.The utility model can be by means of including the hardware of several different elements and by means of suitable
It is realized when the computer of programming.In the unit claims listing several devices, several in these devices can be with
It is to be embodied by the same hardware branch.The use of word first, second, and third does not indicate that any sequence, can
These words are construed to the nearly eye display optical system of simple eye big visual field.
One or more technical solution in the utility model embodiment, at least has the following technical effect that or excellent
Point：
Each output coupling grating 133 can be from same emergent pupil to the image with corresponding sub- field angle of external diffraction
It is watched and is mutually spliced, a complete image with corresponding big visual angle is constituted, so as to be observed simultaneously in emergent pupil
To the multiple images for projecting planar optics waveguide, the image that each image is respectively used in certain sub- visual field scope is aobvious
Show, by image mosaic, increases 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 utility model is not limited to specific implementation mode above-mentioned.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
It closes.
Claims (10)
1. a kind of nearly eye display optical system of simple eye big visual field, which is characterized in that including planar optics waveguide, planar optics waveguide
The relaying grating and output coupling grating being arranged in a one-to-one correspondence with multiple input coupling grating and with each input coupling grating,
Each input coupling grating is used to will be corresponding and with corresponding sub- field angle and complete with the associated image of entrance pupil
Portion's light beam coupling enters planar optics waveguide, so that the light beam meets in planar optics waveguide by each light beam of diffraction described in
The inner full-reflection condition of planar optics waveguide, and each light beam is guided to corresponding relaying grating, relaying grating is by spreading out
Penetrate each light beam, each light beam be directed to corresponding output coupling grating, output coupling grating by each light beam to external diffraction,
So that each light beam is unsatisfactory for the inner full-reflection condition of planar optics waveguide, whole of the output coupling grating to external diffraction
Light beam leaves planar optics waveguide and forms image, which is coupled into the complete of planar optics waveguide with corresponding input coupling grating
Light beam associated image in portion's is corresponding and with corresponding sub- field angle；
Each output coupling grating can be watched to the image with corresponding sub- field angle of external diffraction from same emergent pupil
And mutually splicing, a complete image with corresponding big visual angle is constituted, the big field angle of the complete image is by each output coupling
The corresponding sub- field angle of image of closing light grid to external diffraction merges to obtain.
2. the as described in claim 1 a kind of nearly eye display optical system of simple eye big visual field, which is characterized in that described is multiple defeated
Go out coupling grating to be arranged in order or be vertically arranged in order or arranged in arrays in the horizontal direction.
3. the as claimed in claim 1 or 2 a kind of nearly eye display optical system of simple eye big visual field, which is characterized in that described is defeated
Go out coupling grating quantity be two, three, four or more.
4. the as described in claim 1 a kind of nearly eye display optical system of simple eye big visual field, which is characterized in that the relaying light
One kind that grid are configured as being directed onto during each light beam carry out level for relaying grating is expanded and vertically expanded expands, described
Each light beam carry out level that output coupling grating is configured as being directed onto output coupling grating is expanded and is vertically expanded
Another kind expands.
5. the as described in claim 1 a kind of nearly eye display optical system of simple eye big visual field, which is characterized in that respectively and entrance pupil
Related and with corresponding sub- field angle image orientation residing in described complete image of its composition with should and entrance pupil
Orientation phase that is related and having the output coupling grating corresponding to the accordingly image of sub- field angle residing in planar optics waveguide
Unanimously.
6. the as described in claim 1 a kind of nearly eye display optical system of simple eye big visual field, which is characterized in that relaying grating passes through
Each light beam that diffraction is directed to relaying grating makes the light beam meet the planar optics wave in planar optics waveguide
The inner full-reflection condition led, and each light beam is guided to corresponding output coupling grating.
7. a kind of head-mounted display apparatus, which is characterized in that include that simple eye as described in any one of claim 1-6 regards greatly
Nearly eye display optical system and the component of wearing for being worn on user's head, the nearly eye display optical system peace of simple eye big visual field
It wears on component and is oriented on the eyes that its output coupling grating directs the light beam into wearer mounted in described.
8. a kind of head-mounted display apparatus as claimed in claim 7, which is characterized in that there are one the nearly eye of simple eye big visual field is aobvious for tool
Show optical system, the nearly eye display optical system of simple eye big visual field is oriented its output coupling grating and directs the light beam into wearer
Left eye or right eye on.
9. a kind of head-mounted display apparatus as claimed in claim 7, which is characterized in that there are two the nearly eye of simple eye big visual field is aobvious for tool
Show optical system, the nearly eye display optical system of one of them simple eye big visual field is oriented its output coupling grating and guides light beam
Onto the left eye of wearer, the nearly eye display optical system of another simple eye big visual field is oriented its output coupling grating by light
Beam is directed on the right eye of wearer.
10. a kind of head-mounted display apparatus as claimed in claim 7, which is characterized in that it is described wear component include frame,
Any one in the helmet or headband.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820258297.5U CN208092344U (en) | 2018-02-13 | 2018-02-13 | A kind of nearly eye display optical system of simple eye big visual field and head-mounted display apparatus |
Applications Claiming Priority (1)
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| WO2019157987A1 (en) * | 2018-02-13 | 2019-08-22 | 成都理想境界科技有限公司 | Monocular large field-of-view near-eye display device and binocular large field-of-view near-eye 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 |
| CN113406804A (en) * | 2021-07-15 | 2021-09-17 | 业成科技（成都）有限公司 | Head-mounted display |
| CN113454387A (en) * | 2019-02-22 | 2021-09-28 | 脸谱科技有限责任公司 | Near-to-eye display system with optical combiner |
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| WO2019157987A1 (en) * | 2018-02-13 | 2019-08-22 | 成都理想境界科技有限公司 | Monocular large field-of-view near-eye display device and binocular large field-of-view near-eye display device |
| JP7461357B2 (en) | 2018-12-11 | 2024-04-03 | ディジレンズ インコーポレイテッド | Method and apparatus for providing a single grating layer color holographic waveguide display |
| CN113454387A (en) * | 2019-02-22 | 2021-09-28 | 脸谱科技有限责任公司 | Near-to-eye display system with optical combiner |
| US11747568B2 (en) | 2019-06-07 | 2023-09-05 | Digilens Inc. | Waveguides incorporating transmissive and reflective gratings and related methods of manufacturing |
| US11899238B2 (en) | 2019-08-29 | 2024-02-13 | Digilens Inc. | Evacuated gratings and methods of manufacturing |
| CN113568167A (en) * | 2020-04-29 | 2021-10-29 | 宁波舜宇光电信息有限公司 | Lens unit and AR apparatus including the same |
| CN113050281A (en) * | 2021-02-28 | 2021-06-29 | 南昌三极光电有限公司 | Optical system and mixed reality equipment |
| CN113406804A (en) * | 2021-07-15 | 2021-09-17 | 业成科技（成都）有限公司 | Head-mounted display |
| CN114647082A (en) * | 2022-04-02 | 2022-06-21 | 深圳市光舟半导体技术有限公司 | Pupil expanding device, binocular display method and image display method |
| CN115933205A (en) * | 2023-02-24 | 2023-04-07 | 北京灵犀微光科技有限公司 | Optical waveguide near-to-eye display device |
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