CN108803020A - A kind of near-eye display system and wear display equipment - Google Patents
A kind of near-eye display system and wear display equipment Download PDFInfo
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- CN108803020A CN108803020A CN201810146757.XA CN201810146757A CN108803020A CN 108803020 A CN108803020 A CN 108803020A CN 201810146757 A CN201810146757 A CN 201810146757A CN 108803020 A CN108803020 A CN 108803020A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
Abstract
The invention discloses a kind of near-eye display system and display equipment is worn, including：Light source, display module, eyepiece microscope group, lens array, multiple waveguide coupler parts and multiple nearly eyes show planar waveguide, the light source includes multiple sub-light sources, when to image to be projected project, current sub-light source is distributed in the uniform light sent out in the display module；The display module is image to be projected for showing, and by the corresponding beam projecting image to be projected to the eyepiece microscope group；The eyepiece microscope group is by lens corresponding with the current sub-light source in the corresponding beam projecting to the lens array image to be projected；The lens are used for the corresponding ray cast image to be projected to corresponding waveguide coupler part；The waveguide coupler part, which is used to the corresponding light image to be projected being coupled into corresponding nearly eye, shows planar waveguide；The nearly eye shows that planar waveguide is used to the corresponding light image to be projected importing human eye.
Description
Technical field
The present invention relates to virtual reality and augmented reality field more particularly to a kind of near-eye display system and wears display and set
It is standby.
Background technology
Virtual reality (English：Virtual Reality；Referred to as：VR) it is a kind of can create and the experiencing virtual world
Computer simulation system, it generates a kind of simulated environment using computer, passes through interactive Three-Dimensional Dynamic what comes into a driver's and entity row
For system emulation so that user is immersed in the environment, bring the sensory experience for surmounting real life environment for user.In vision
For aspect, virtual reality technology generates the image of virtual scene using computer equipment, and by optical device by image light
Line is transmitted to human eye so that user can visually can experience the virtual scene completely.
Augmented reality (English：Augmented Reality；Referred to as：AR), it is to utilize dummy object or information to true field
Scape carries out the technology of real enhancing.Augmented reality is typically based on the actual physical ring of the image capture devices such as camera acquisition
Border image will have associated content of text, picture material or figure therewith by computer system discriminance analysis and query and search
As the virtual image that model etc. virtually generates is shown in actual physical situation image, showing of being in can be obtained thereby using family
The mark of real-world object in real physical environment such as illustrates at the related expandings information, or experiences true in real physical environment
The enhancing visual effect that is three-dimensional, highlighting of object.
Existing virtual reality and augmented reality mostly use greatly binocular parallax and realize that the depth of 3D rendering shows and feels
Know there can be the conflict of vision radiation adjusting and perceived depth, wherein vision radiation adjusting refers to that the eyes of people are adjusted with self
Section influences the ability of distance, but this ability is not quickly to convert very much, since the coordination ability of eyes is limited, eyes
When focusing screen, the speed that the capacitys of self-regulation of eyes can not show a candle to image switching is fast, and therefore, viewing for a long time can make user
There is dizziness, the eyes of nauseous situation or even user are damaged, it is seen then that existing enhancing display and virtual reality technology
It is also difficult to meet the needs of Market Consumer.
Invention content
The object of the present invention is to provide a kind of near-eye display system and display equipment is worn, is deposited in the prior art for solving
Using binocular parallax realize 3D rendering depth show and perceive, can exist vision radiation adjusting and perceived depth conflict
The technical issues of.
In order to achieve the above-mentioned object of the invention, first aspect of the embodiment of the present invention provides a kind of near-eye display system, including：Light
Source, display module, eyepiece microscope group, lens array, multiple waveguide coupler parts and multiple nearly eyes show planar waveguide, the light source
Including multiple sub-light sources, the light angle of light that each sub-light source is sent out in the display module is different, the lens array
The imaging focal length of multiple lens in row is different, and multiple sub-light sources are corresponded with multiple lens, Duo Gesuo
It states waveguide coupler part to correspond with multiple lens, multiple nearly eyes show planar waveguide and multiple waveguide couplings
Clutch part corresponds；
When to image to be projected project, in multiple sub-light sources with the depth information image to be projected
Corresponding current sub-light source is distributed in the uniform light sent out in the display module；
The display module is image to be projected for showing, and after receiving the light that the current sub-light source is sent out, will
The corresponding beam projecting image to be projected is to the eyepiece microscope group；
The eyepiece microscope group is used to receive the corresponding light image to be projected, and will be described image to be projected corresponding
Lens corresponding with the current sub-light source in beam projecting to the lens array；
The lens are used for the corresponding ray cast image to be projected to corresponding waveguide coupler part；
The waveguide coupler part be used for by the corresponding light image to be projected be coupled into corresponding nearly eye show put down
Board waveguide；
The nearly eye shows that planar waveguide is used to the corresponding light image to be projected importing human eye.
Optionally, the light source includes lighting source and light lens group；
The light lens group is located on the emitting light path of the lighting source, and the light lens group is used for the photograph
The uniform light that Mingguang City source is sent out is distributed in the display module.
Optionally, the lighting source is array light source or scanning light source.
Optionally, the array light source is laser array or optical fibre illumination array of source；
The scanning light source is optical fiber scanning light source or micro-electromechanical system (MEMS) scanning mirror light source.
Optionally, the display module is located on the emergent pupil face of the light lens group.
Optionally, the display module is that the attached silicon LCOS display module of liquid crystal or digital multi splice DMD displays
Module.
Optionally, the LCOS display module includes LCOS display and polarization spectro PBS prisms；
The DMD displays module includes DMD displays and TIR prism.
Optionally, the lens array is located on the emergent pupil face of the eyepiece microscope group.
Second aspect of the embodiment of the present invention provides one kind and wearing display equipment, including the nearly eye display system described in first aspect
System and the component of wearing for being worn on user's head, the near-eye display system are worn on component and are positioned mounted on described
It is guided to the eyes of wearer at by light beam.
Optionally, the display equipment of wearing includes two sets of near-eye display systems, wherein first set nearly eye display system
The light of system outgoing enters the left eye of wearer, and the light of second set of near-eye display system outgoing enters the right eye of wearer.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage：
In the scheme of the embodiment of the present invention, since the light source of near-eye display system includes multiple sub-light sources, multiple sub-light sources
Light angle of the light sent out in the display module is different so that multigroup light that multiple sub-light sources are sent out is by display
After module, by lens projects different in lens array to different waveguide coupler parts, due to the imaging focal length of different lens
It is different so that the projector distance of multigroup light is different, by the corresponding multigroup ray cast of image with different depths to not
Same waveguide coupler part, then show that planar waveguide imports human eye by different nearly eyes, so that it may with waiting for different projector distances
Projected enters human eye, to realize the image observation of different depth, avoids and passes through binocular parallax in the prior art
Realize that 3D rendering is shown, it is to solve existing in the prior art, using binocular parallax realize the depth of 3D rendering show with
Perception can there is technical issues that vision radiation adjusting and perceived depth, provide a kind of side that new depth is shown
Formula.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings：
Fig. 1 is the structural schematic diagram of near-eye display system provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of possible realization method of light source provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of optical fiber scanning light source provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of MEMS scanning mirrors light source provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of possible realization method of near-eye display system provided in an embodiment 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.
Referring to FIG. 1, Fig. 1 is the structural schematic diagram of near-eye display system provided in an embodiment of the present invention, which shows
System includes light source 10, display module 20, eyepiece microscope group 30, lens array 40, multiple waveguide coupler parts 50 and multiple nearly eyes
Show that planar waveguide 60, the light source 10 include multiple sub-light sources, the light that each sub-light source is sent out is in the display module 20
On light angle it is different, the imaging focal length of multiple lens in the lens array 40 is different, multiple sub-light sources
It is corresponded with multiple lens, multiple waveguide coupler parts 50 are corresponded with multiple lens, multiple described
Nearly eye shows that planar waveguide 60 is corresponded with multiple waveguide coupler parts 50.
In the embodiment of the present invention, when to image to be projected project, by with depth information pair image to be projected
The current sub-light source answered is distributed in the uniform light sent out in the display module 20；Display module 20 waits throwing for showing
Shadow image, also, display module 20 is after receiving the light that current sub-light source is sent out, by corresponding beam projecting image to be projected
To eyepiece microscope group 30, the eyepiece microscope group 30 is for receiving the corresponding light image to be projected, and by the figure to be projected
As lens corresponding with current sub-light source in corresponding beam projecting to the lens array 40, then, the lens are used for will
Corresponding ray cast image to be projected is to corresponding waveguide coupler part 50；Finally, the waveguide coupler part 50 will be described
Corresponding light image to be projected is coupled into corresponding nearly eye and shows planar waveguide 60, then shows that planar waveguide 60 will by the nearly eye
Multigroup light imports human eye.
In said program, since the imaging focal length of the different lens in lens array 40 is different so that different sub-light source hairs
When the light source gone out is emitted to corresponding lens, the projector distance of light that different sub-light sources are sent out is different, then by different projections away from
From light pass through different nearly eye and show that planar waveguide 60 imports human eye, so that it may with by the image to be projected of different projector distances
Corresponding light is projected into human eye, to realize the image observation of different depth.
In the embodiment of the present invention, light source 10 is illustrated first.
Referring to FIG. 2, Fig. 2 is a kind of structural representation of possible realization method of light source provided in an embodiment of the present invention
Figure, light source 10 include lighting source 101 and light lens group 102, and light lens group 102 is located at the outgoing of optical illumination light source 101
In light path, light lens group 102 is used to uniform light that lighting source 101 is sent out being distributed in display module 20.
Further, in order to realize different projector distances, light angle of each sub-light source in the display module 20
It is different.For example, as illustrated in fig. 2, it is assumed that near-eye display system includes three sub-light sources, if the optical axis of each sub-light source with
Angle between 20 place plane (as shown in phantom in Figure 2) of display module is different, then display module 20 (is not shown in figure
Go out) on arbitrary pixel A for, the light angle that three sub-light sources 10 project the light on pixel A is all different.
In specific implementation process, the lighting source 101 can be array light source, such as：Laser array, optical fiber shine
Bright array of source.It specifically, then can in optical fibre illumination array of source as illustrated in fig. 2, it is assumed that light source 10 includes 3 sub-light sources
To include 3 independent optical fibre illumination light sources.
In alternatively possible embodiment, lighting source 101 or scanning light source, such as：Optical fiber scanning light
Source or micro-electromechanical system (MEMS) (full name in English：Micro-Electro-Mechanical System) scanning mirror light source etc., such as
Shown in Fig. 3 and Fig. 4, Fig. 3 is the structural schematic diagram of optical fiber scanning light source provided in an embodiment of the present invention, and Fig. 4 is that the present invention is implemented
The structural schematic diagram for the MEMS scanning mirror light sources that example provides.For scanning light source, by carrying out light to a scanning light source
Source modulation can generate multiple sub-light sources, as shown in figure 3, can pass through light source tune when scanning fiber-optic vibration to different location
System makes optical fiber scanning light source generate 3 sub-light sources, when scanning fiber-optic vibration is to different location, the light that sends out of sub-light source of generation
Light angle of the line in display module 20 is different.In specific implementation process, can also by modulation of source generate 5 or
More sub-light sources, the present invention are without limitation.
In said program, when the sub-light source quantity that light source 10 includes is more, light source 10 can be reduced using scanning light source
Volume, and then reduce near-eye display system volume.
In the embodiment of the present invention, display module 20 is image to be projected for showing, display module 20 itself does not shine, and shows
Show that module 20 is located on the emergent pupil face of the light lens group 102, the light that multiple sub-light sources are sent out is irradiated to display module 20
On, display module 20 can export corresponding light image to be projected by way of the transmissivity or reflectivity that control light
Line, so that human eye can see the image shown in display module 20.
In the embodiment of the present invention, display module 20 can be reflective display module, such as：LCOS (full name in English：
Liquid Crystal on Silicon；Chinese：The attached silicon of liquid crystal or liquid crystal on silicon) display module, display module 20
Can be transmissive display module, such as：DMD (full name in English：Digital multi-function display；Chinese name
Claim：Digital multi splices) display module.Wherein, LCOS display module includes LCOS display and polarization spectro PBS
(full name in English：Polarization beam splitter) prism；DMD display modules include DMD displays and be complete in it is anti-
Penetrate TIR (full name in English：Total internal reflection) prism.
In the embodiment of the present invention, illustrated so that display module 20 is reflective LCoS display module as an example.Please refer to figure
5, Fig. 5 be a kind of structural schematic diagram of possible realization method of near-eye display system provided in an embodiment of the present invention.Wherein, it shines
The light sent out in Mingguang City source 101 is evenly distributed in LCOS display after light lens group 102 and PBS prisms 202
On 201, then, what LCOS display 201 reflected reflexes to eyepiece mirror with corresponding light image to be projected by PBS prisms 202
Then group 30, eyepiece microscope group 30, amplified corresponding light image to be projected are gone out for being amplified to image to be projected
It is incident upon lens array 40.
In the embodiment of the present invention, lens array 40 is located on the emergent pupil face of eyepiece microscope group 30, and lens array 40 may include
Multiple to have different imaging focal length lens, the quantity of lens is identical as the quantity for the sub-light source that light source 10 includes, and multiple sub-lights
Multiple lens are one-to-one in source and lens array 40.For example, it is assumed that near-eye display system includes 3 sub-light sources,
Then corresponding, lens array 40 includes 3 lens, in another example：Assuming that near-eye display system includes 5 sub-light sources, then correspond to
, lens array 40 includes 5 lens.Since the imaging focal length of each lens is different, the light that different sub-light sources are sent out
Line can be by different lens projects to different projector distances, also, the uniform light that is sent out due to each sub-light source is distributed in
On LCOS display 201, therefore, the light corresponding one being emitted on each lens is secondary complete image to be projected, to make
Obtain the image that human eye can see different depth.
Then, the light of different lens outgoing is projected onto different waveguide coupler parts 50, by different waveguide couplings
Clutch part 50 is coupled into different nearly eyes and shows planar waveguide 60, shows that planar waveguide 60 imports people using different nearly eyes
Eye, to realize that the image of different depth is shown.
In the embodiment of the present invention, when to image to be projected project, near-eye display system can be according to figure to be projected
The depth information of picture selects corresponding sub-light source so that the imaging focal length of the corresponding lens of the sub-light source and depth image to be projected
Spend information matches.
In the embodiment of the present invention, the number of lens can be by near-eye display system in the number and lens array 40 of sub-light source
Projection Depth exponent number determine.For example, 13m (rice)~infinite far single order in space, 8m~13m be single order, 5m~
8m is single order, and 3~5m is single order, and 0.5m~3m is single order, then near-eye display system may include 5 sub-light sources and 5 imagings
The different lens of focal length, to realize that the image of above-mentioned 5 rank different depth is shown.In another example：Far by 10m in space~infinite
Single order, 5m~10m are single order, and 0.5m~5m is single order, then near-eye display system may include 3 sub-light sources and 3 differences at
As the lens of focal length, to realize that the image of above-mentioned 3 rank different depth is shown.
Specifically, when selection is with corresponding sub-light source image to be projected, there can be following two modes.One kind can
It is image to be projected other than gray scale and colouring information in the embodiment of energy, further include depth information, therefore, nearly eye display system
System directly can select corresponding sub-light source according to the depth information of itself image to be projected, to by right in lens array 40
The lens answered are by projection image to be projected extremely projector distance corresponding with the depth information, to realize that depth is shown.
In alternatively possible embodiment, including wearing for above-mentioned near-eye display system shows that equipment can be real-time
The focus for obtaining human eye needs the projector distance realized to obtain near-eye display system, then, according to the selection pair of the focus of human eye
The sub-light source answered, to be projected image to be projected to the projector distance by corresponding lens in lens array 40, to real
Existing depth is shown.In specific implementation process, can also use other modes select with corresponding sub-light source image to be projected,
The present invention is without limitation.
Based on same inventive concept, the embodiment of the present invention also provides one kind and wearing display equipment, including in above-described embodiment
Near-eye display system and component of wearing for being worn on user's head, the near-eye display system, which is mounted on, described wears portion
On part and it is oriented to guide light beam to the eyes of wearer.Wherein, the nearly eye in earlier figures 1 to the corresponding embodiments of Fig. 5
What the various change mode and specific example of display system were equally applicable to the present embodiment wears display equipment, by aforementioned to close
The detailed description of eye reality system, those skilled in the art are clear that the implementation that display equipment is worn in the present embodiment
Mode, so in order to illustrate the succinct of book, this will not be detailed here.
In a kind of possible embodiment, it may include a set of near-eye display system to wear display equipment, and nearly eye
The light of display system outgoing imports the left eye or right eye of people.In alternatively possible embodiment, display equipment is worn
May include two sets of near-eye display systems, wherein the light of first set near-eye display system outgoing enters the left eye of people, second set
The light of near-eye display system outgoing enters the right eye of people, to realize that virtual reality is shown or augmented reality is shown.
One or more technical solution in the embodiment of the present invention, at least has the following technical effect that or advantage：
In the scheme of the embodiment of the present invention, since the light source of near-eye display system includes multiple sub-light sources, multiple sub-light sources
Light angle of the light sent out in the display module is different so that multigroup light that multiple sub-light sources are sent out is by display
After module, by lens projects different in lens array to different waveguide coupler parts, due to the imaging focal length of different lens
It is different so that the projector distance of multigroup light is different, by the corresponding multigroup ray cast of image with different depths to not
Same waveguide coupler part, then show that planar waveguide imports human eye by different nearly eyes, so that it may with waiting for different projector distances
Projected enters human eye, to realize the image observation of different depth, avoids and passes through binocular parallax in the prior art
Realize that 3D rendering is shown, it is to solve existing in the prior art, using binocular parallax realize the depth of 3D rendering show with
Perception can there is technical issues that vision radiation adjusting and perceived depth, provide a kind of side that new depth is shown
Formula.
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. a kind of near-eye display system, which is characterized in that including：Light source, display module, eyepiece microscope group, lens array, Duo Gebo
It leads coupled apparatus and multiple nearly eyes shows planar waveguide, the light source includes multiple sub-light sources, the light that each sub-light source is sent out
Light angle in the display module is different, and the imaging focal length of multiple lens in the lens array is different, more
A sub-light source is corresponded with multiple lens, and multiple waveguide coupler parts are a pair of with multiple lens one
It answers, multiple nearly eyes show that planar waveguide is corresponded with multiple waveguide coupler parts；
It is corresponding with the depth information image to be projected in multiple sub-light sources when to image to be projected project
Current sub-light source being distributed in the uniform light sent out in the display module；
The display module is image to be projected for showing, and after receiving the light that the current sub-light source is sent out, will be described
Corresponding beam projecting image to be projected is to the eyepiece microscope group；
The eyepiece microscope group is for receiving the corresponding light image to be projected, and by the corresponding light image to be projected
Lens corresponding with the current sub-light source are emitted in the lens array；
The lens are used for the corresponding ray cast image to be projected to corresponding waveguide coupler part；
The waveguide coupler part, which is used to the corresponding light image to be projected being coupled into corresponding nearly eye, shows tablet wave
It leads；
The nearly eye shows that planar waveguide is used to the corresponding light image to be projected importing human eye.
2. near-eye display system as described in claim 1, which is characterized in that the light source includes lighting source and light lens
Group；
The light lens group is located on the emitting light path of the lighting source, and the light lens group is used for the illumination light
The uniform light that source is sent out is distributed in the display module.
3. near-eye display system as claimed in claim 2, which is characterized in that the lighting source is array light source or scanning light
Source.
4. near-eye display system as claimed in claim 3, which is characterized in that the array light source is laser array or optical fiber
Lighting source array；
The scanning light source is optical fiber scanning light source or micro-electromechanical system (MEMS) scanning mirror light source.
5. near-eye display system as claimed in claim 2, which is characterized in that the display module is located at the light lens group
Emergent pupil face on.
6. near-eye display system as described in claim 1, which is characterized in that the display module is that the attached silicon LCOS of liquid crystal is shown
Device module or digital multi splice DMD display modules.
7. near-eye display system as claimed in claim 6, which is characterized in that the LCOS display module includes that LCOS is shown
Device and polarization spectro PBS prisms；
The DMD displays module includes DMD displays and TIR prism.
8. the near-eye display system as described in any one of claim 1-7, which is characterized in that the lens array is located at described
On the emergent pupil face of eyepiece microscope group.
9. one kind wearing display equipment, which is characterized in that include the near-eye display system as described in any one of claim 1-8
With the component of wearing for being worn on user's head, the near-eye display system is worn on component and is oriented mounted on described
Light beam is guided to the eyes of wearer.
10. wearing display equipment as claimed in claim 9, which is characterized in that the display equipment of wearing includes described in two sets
Near-eye display system, wherein the light of first set near-eye display system outgoing enters the left eye of wearer, and second set of nearly eye is shown
The light of system exit enters the right eye of wearer.
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| CN201810146757.XA CN108803020B (en) | 2018-02-12 | 2018-02-12 | Near-to-eye display system and head-mounted display equipment |
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| CN201810146757.XA CN108803020B (en) | 2018-02-12 | 2018-02-12 | Near-to-eye display system and head-mounted display equipment |
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| CN110824699B (en) * | 2019-12-25 | 2020-12-04 | 歌尔光学科技有限公司 | Eyeball tracking system of near-to-eye display equipment and near-to-eye display equipment |
| CN111796425A (en) * | 2020-07-15 | 2020-10-20 | 上海慧希电子科技有限公司 | Optical system |
| WO2022095663A1 (en) * | 2020-11-09 | 2022-05-12 | 京东方科技集团股份有限公司 | Near-eye display apparatus |
| CN114252998A (en) * | 2022-03-02 | 2022-03-29 | 北京灵犀微光科技有限公司 | Near-to-eye display device |
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| CN108803020B (en) | 2020-11-06 |
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