CN108319019A - AR display devices and wearable AR equipment - Google Patents
AR display devices and wearable AR equipment Download PDFInfo
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- CN108319019A CN108319019A CN201810147336.9A CN201810147336A CN108319019A CN 108319019 A CN108319019 A CN 108319019A CN 201810147336 A CN201810147336 A CN 201810147336A CN 108319019 A CN108319019 A CN 108319019A
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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
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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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
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Abstract
The present invention provides a kind of AR display devices and wearable AR equipment, are related to augmented reality technical field of imaging, including image projection apparatus and display optical path component；Described image grenade instrumentation includes image source and fibre faceplate, and fibre faceplate, which closes between the side of image source and image source, to be fitted closely, and the light that the image source is sent out enters by the fibre faceplate in the display optical path component；The display optical path component includes the spectroscope being arranged in order and curved surface half-reflecting mirror.Image projection apparatus projects light and can agree with the optical system curvature of field in this way, to improve the picture quality of entire imaging system.
Description
Technical field
The present invention relates to augmented reality technical field of imaging, in particular to a kind of AR display devices and wearable AR
Equipment.
Background technology
AR (Augmented Reality, augmented reality) is also referred to as mixed reality, principle be by computer technology,
By virtual Information application to real world, true environment and virtual object have been added to the same picture or sky in real time
Between exist simultaneously.
Currently, people can be carried out interactive by Wearable, such as AR glasses or the AR helmets with real world.Such as
Fig. 1 shows the structural schematic diagram of the AR display devices in existing AR glasses or the AR helmets, as shown in Figure 1, existing AR is aobvious
Showing device optical system includes image source 11, spectroscope 21, curved surface half-reflecting mirror 22 and the lens 13 above spectroscope 21, as
Source 11 is arranged on the top of optical system, and has certain distance between image source 11 and lens 13, and the image light of image source 11 is from upper
Lens 13 are injected under direction.Image light enters after lens 13 in display optical path component, and image light passes through curved surface half
It is returned to human eye after speculum 22.However, can not agree with from the shape of image source with the optical system curvature of field, pixel granular sensation is strong, figure
Image quality amount is low.
Invention content
In view of this, the purpose of the present invention is to provide AR display devices and wearable AR equipment, image can be projected
Device, which projects light, to be agreed with the optical system curvature of field, to improve the picture quality of entire imaging system.
In a first aspect, an embodiment of the present invention provides a kind of AR display devices, including image projection apparatus and display light path
Component；Described image grenade instrumentation includes image source and fibre faceplate, the fibre faceplate close on the side of the image source with it is described
It is fitted closely between image source, the light that the image source is sent out enters by the fibre faceplate in the display optical path component；It is described
Show that optical path component includes the spectroscope being arranged in order and curved surface half-reflecting mirror.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein institute
It is concave/convex-surface type/plane to state side of the fibre faceplate far from the image source.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein institute
Stating display optical path component further includes：Wave plate component；The spectroscope includes polarization beam splitter；The polarization beam splitter is for passing through
Polarization state is the polarised light of first direction, and reflected polarization state is the polarised light of second direction；The first direction and described second
Direction is mutually perpendicular to.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiments of first aspect, wherein institute
It further includes spectroscope substrate to state spectroscope；The polarization beam splitter, which is located at, closes on described image grenade instrumentation and the wave plate component
Side, the spectroscope substrate is located remotely from the side of described image grenade instrumentation and the wave plate component.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiments of first aspect, wherein institute
The angle stated between spectroscopical plane of reflection and the optical axis of the curved surface half-reflecting mirror is α；The normal of the image source and described
Angle between spectroscopical plane of reflection is β；α value ranges are β -10 ° between+10 ° of β, and 90 ° >=α >=0 °.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiments of first aspect, wherein β
It is 0 °~90 °.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiments of first aspect, wherein β
It is 40 °~50 °.
With reference to first aspect, an embodiment of the present invention provides the 7th kind of possible embodiments of first aspect, wherein when
What the polarised light of the first direction and the polarised light of the second direction were propagated under the premise of satisfaction is mutually perpendicular to around light
When 0 °~360 ° rotations in direction, the polarization beam splitter and the wave plate component will also change corresponding angle.
With reference to first aspect, an embodiment of the present invention provides the 8th kind of possible embodiments of first aspect, wherein institute
It is quarter wave plate to state wave plate component.
With reference to first aspect, an embodiment of the present invention provides the 9th kind of possible embodiments of first aspect, wherein institute
Quarter wave plate is stated to be set between the spectroscope and the curved surface half-reflecting mirror.
With reference to first aspect, an embodiment of the present invention provides the tenth kind of possible embodiments of first aspect, wherein institute
State the inside that quarter wave plate fits in the curved surface half-reflecting mirror.
With reference to first aspect, an embodiment of the present invention provides a kind of the tenth possible embodiments of first aspect, wherein
Described image grenade instrumentation further includes matching mirror and/or lens.
With reference to first aspect, an embodiment of the present invention provides the 12nd kind of possible embodiments of first aspect, wherein
When described image grenade instrumentation includes the image source, the fibre faceplate and the lens, the fibre faceplate is far from described
It is fitted closely between the side of image source and the lens.
With reference to first aspect, an embodiment of the present invention provides the 13rd kind of possible embodiments of first aspect, wherein
When described image grenade instrumentation includes the image source, the fibre faceplate, the matching mirror and the lens, the matching mirror
The side of side and the fibre faceplate far from the image source between fit closely；It is described matching mirror the other side with it is described
Mirror fits closely.
With reference to first aspect, an embodiment of the present invention provides the 14th kind of possible embodiments of first aspect, wherein
The refractive index of the matching mirror is 1~2.7.
With reference to first aspect, an embodiment of the present invention provides the 15th kind of possible embodiments of first aspect, wherein
The matching mirror is made of liquid material, liquid crystal, semisolid material or solid material.
With reference to first aspect, an embodiment of the present invention provides the 16th kind of possible embodiments of first aspect, wherein
When the matching mirror is liquid material, liquid crystal or semisolid material, described image grenade instrumentation further includes sealing structure, general
It is sealed between side and the lens of the fibre faceplate far from image source with mirror.
With reference to first aspect, an embodiment of the present invention provides the 17th kind of possible embodiments of first aspect, wherein
When the matching mirror is solid material, side of the fibre faceplate far from image source, the matching mirror and the lens are mutual
It is directly connected to.
With reference to first aspect, an embodiment of the present invention provides the 18th kind of possible embodiments of first aspect, wherein
The image source is the image source of integrated optical source or single image source.
Second aspect, the embodiment of the present invention also provide a kind of wearable AR equipment, including in clamping piece and above-described embodiment
Any one of them AR display devices.
The embodiment of the present invention brings following advantageous effect：
AR display devices provided in an embodiment of the present invention and wearable AR equipment, by increasing light in image projection apparatus
Fine panel, side of the fibre faceplate far from image source are curved surface, form similar curved image source, and such image projection apparatus projects luminous energy
It is enough to agree with the optical system curvature of field, to improve the picture quality of entire imaging system.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of AR display devices of the prior art；
The structural schematic diagram for the AR display devices that Fig. 2 is provided for a first embodiment of the invention；
The structural schematic diagram for the image projection apparatus that Fig. 3 is provided for a first embodiment of the invention；
The structural schematic diagram for the image projection apparatus that Fig. 4 is provided for another first embodiment of the invention；
The structural schematic diagram for the image projection apparatus that Fig. 5 is provided for another first embodiment of the invention；
The structural schematic diagram for the AR display devices that Fig. 6 is provided for another first embodiment of the invention；
The structural schematic diagram for the AR display devices that Fig. 7 is provided for a second embodiment of the invention；
The structural schematic diagram for the AR display devices that Fig. 8 is provided for another second embodiment of the invention；
The structural schematic diagram for the AR display devices that Fig. 9 is provided by third embodiment of the invention.
Icon：
11- image sources；12- fibre faceplates；13- lens；14- matches mirror；21- spectroscopes；22- curved surface half-reflecting mirrors；211-
Polarization beam splitter；212- spectroscope substrates；23- wave plate components.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
The light sent out from image source in existing AR display devices is diverging, launches around, leads to the shape of image source
It can not agree with the optical system curvature of field, pixel granular sensation is strong, fogging image.Based on this, one kind provided in an embodiment of the present invention
A kind of AR display devices and wearable AR equipment below first describe to the AR display devices of the present invention in detail.
Embodiment one
A kind of AR display devices are present embodiments provided, as shown in Fig. 2, the AR display devices, including image projection apparatus
With display optical path component.
Image projection apparatus includes image source 11 and fibre faceplate 12, and fibre faceplate 12 closes on side and the image source 11 of image source 11
Between fit closely, the light that image source 11 is sent out by fibre faceplate 12 enter show optical path component in.Show that optical path component includes
The spectroscope 21 and curved surface half-reflecting mirror 22 being arranged in order.
Wherein, the effect of image source 11 is to show the image for needing to project in human eye, and plane image source may be used in image source 11,
The including but not limited to image source of integrated optical source or single image source.For example, OLED (Organic Light-Emitting Diode,
Organic Light Emitting Diode), LCOS (Liquid Crystal On Silicon, liquid crystal on silicon), LCD (Liquid Crystal
Display, liquid crystal display), MEMS (Microelectromechanical Systems, micro electronmechanical display system), DMD
The electronic device of displaying principles such as (Digital Micro-mirror Device, digital micromirror elements).Wherein, OLED and LCD
For the image source of integrated optical source；LCOS, MEMS and DMD are single image source, need in addition to increase secondary light source.
Operation principle such as Fig. 2 AR display devices shown is as follows：Image source 11 launches image light, then image light
Into in fibre faceplate 12, then image light is penetrated after the modulation of fibre faceplate 12 from image light fibre faceplate 12
Go out, some light passes through the reflection directive curved surface half-reflecting mirror 22 of spectroscope 21, and some light is using curved surface half-reflecting mirror 22
Reflection directive spectroscope 21.At the same time, some light of ambient light sequentially passes through curved surface half-reflecting mirror 22 and spectroscope
21 arrive at human eye, form the image of virtual reality.
In conjunction with shown in Fig. 3-5, fibre faceplate 12, which closes between the side of image source and image source, to be fitted closely, optionally, optical fiber
Panel 12 is connect with image source using glue or optical cement method, specifically：Method using glue is in image source 11 and fibre faceplate
Between 12 apply one layer of very thin substratum transparent, then using various methods solidification (such as ultraviolet irradiation or oneself solidification or
Heating etc.)；Optical cement method, is the fine of the fitting that two surfaces are done, and surface is accomplished very smooth, is then directly fitted, is leaned on
The interaction force of microcosmic particle links together, and does not need the medium of any centre.If image source is plane, fiber facet
The side that plate 12 closes on image source is then plane, and side of the fibre faceplate 12 far from image source can be designed to arbitrary face type, such as：
The various free form surface types of concave, convex-surface type, plane, spherical, aspherical types etc..In this way when fibre faceplate closes on image source
Side and plane image source between when fitting closely, the light that each pixel is sent out on plane image source enters pair of fibre faceplate
It answers in the optical fiber of position, then is emitted from side of the fibre faceplate far from image source, wherein each optical fiber of fibre faceplate is all equivalent to one
A pixel.
In addition, the optical fiber string diameter of fibre faceplate can accomplish 1um or smaller, be much smaller than the Pixel Dimensions of image source, at this time as
Each pixel on source can correspond to multiple fiber optic points, and the boundary of pixel cannot be also differentiated when being watched by optical system, use
Family is it can be seen that clearly image.
When the light in various directions passes through fibre faceplate, the light in various directions is modulated to move towards to propagate along optical fiber, and
On the exit facet of fibre faceplate, the outgoing of light can regard that every optical fiber connector is a display pixel of image source as, therefore
The direction of shape and pixel the outgoing central ray of image source light-emitting surface can be modulated by the exit surface of fibre faceplate, be helped
In reducing design difficulty, number of elements is reduced, lifting system integrated level etc. keeps product integrated degree high, and weight reduces, volume
Smaller.
By increasing fibre faceplate in image projection apparatus, side of the fibre faceplate far from image source is curved surface, forms class
Like curved surface image source, such image projection apparatus, which projects light, to be agreed with the optical system curvature of field, to improve entire imaging system
Picture quality.
In an optional embodiment, as shown in fig. 6, display optical path component 2 can also include：Wave plate component 23；Light splitting
Mirror 21 includes polarization beam splitter 211；
Polarization beam splitter 211 is used for through the polarised light that polarization state is first direction, and reflected polarization state is second direction
Polarised light；First direction and the second direction are mutually perpendicular to.Further, spectroscope 21 further includes spectroscope substrate 212；Partially
The spectro-film 211 that shakes is located at the side for closing on image projection apparatus 1 and wave plate component 23, and spectroscope substrate 212 is located remotely from image
The side of grenade instrumentation and wave plate component 23.
Wherein, first direction and second direction are mutually perpendicular to.For example, it is the side P that first direction polarised light, which can be polarization state,
To polarised light, second direction polarised light can be polarization state be the directions S polarised light.In view of P polarization light and S-polarization light can
To be rotated around the light direction of propagation under the premise of satisfaction is mutually perpendicular to, therefore, first direction polarised light can also be polarization state
With the polarised light of the directions P at an angle, second direction polarised light can also be polarization state and the polarization of the directions S at an angle
Light, in the embodiment of the present invention, without limiting.
In the present embodiment, when extraneous interference light is incident in spectroscope 21, the first direction of interference light
Polarised light can pass through polarization beam splitter, part interference light to be reflected into human eye, can promote image-watching contrast, reduce dry
It disturbs.
As shown in fig. 6, the optical axis of spectroscopical plane of reflection and curved surface half-reflecting mirror 22 is in the angles α, the normal of image source 11 with
The plane of reflection of spectroscope 21 is in the angles β, and α value ranges are β -10 ° between+10 ° of β, and 90 ° >=α >=0 °.Wherein, β be 0 °-
Between 90 °, preferably 40 ° -50 °, at this point, the visual field of image light is maximum, the visual range of image light is maximum.Work as first party
To polarised light and the polarised light of second direction revolve around 0 °~360 ° of the direction that light is propagated meeting the under the premise of of being mutually perpendicular to
When turning, polarization beam splitter 211 and wave plate component 23 will also change corresponding angle.
Quarter wave plate may be used in wave plate component 23.Quarter wave plate is used for the polarised light for second direction by incident polarization state
It is changed into circularly polarized light, circularly polarized light is changed into the polarised light that polarization state is first direction.Wherein, quarter wave plate can be arranged
Between spectroscope 21 and curved surface half-reflecting mirror 22, the inside of curved surface half-reflecting mirror 22 can also be fitted in, that is, closes on spectroscope
21 side.Also, as shown in fig. 6, quarter wave plate can be planar structure, spectroscope 21 and curved surface half can be vertically arranged at
Between speculum 22.Quarter wave plate may be curved-surface structure, can fit in the inside of curved surface half-reflecting mirror 22.Quarter wave plate is also
It can be cylindrical structure；Quarter wave plate can also be spherical surface or non-spherical structure.
As the operation principle of the AR display devices of Fig. 6 is：
First direction can be the polarised light in the directions P；Second direction can be the directions S polarised light.
When the image light that plane image source is sent out initially enters fibre faceplate 12, image light is modulated by fibre faceplate 12
Afterwards, by image light in surface feeding sputtering of the fibre faceplate far from image source side to display optical path component.Show light path group
Part using polarization light path design, that is, using polarization light path design display optical path component include：With polarization beam splitter 211
Spectroscope 21, wave plate component 23, curved surface half-reflecting mirror 22, the image light being emitted from fibre faceplate 12 enter spectroscope 21
On, spectroscope 21 includes spectroscope substrate 212 and polarization beam splitter 211 successively, and polarization beam splitter 211 can be by polarization state
The polarised light in the directions P, reflected polarization state are the light in the directions S.Image light is incident on polarization beam splitter 211 first, at this time image
S-polarization light in light can be reflected on quarter wave plate.Quarter wave plate is incident on by the S-polarization light that polarization beam splitter 211 reflects,
It is changed into circularly polarized light, is then incident on curved surface half-reflecting mirror 22, circularly polarized light is divided at this time, and a part projects curved surface half reflection
To the external world, another part is reflected back toward quarter wave plate, becomes P polarization light by circularly polarized light mirror.
P polarization light after transformation is again incident on polarization beam splitter 211, and since polarization direction is the directions P, light will at this time
Across polarization beam splitter 211, entered in human eye after being then passed through spectroscope substrate 212.It enables users to see big visible angle
Virtual image.
Compared with prior art, 1 times of efficiency of light energy utilization or more can be improved using polarization light path, improves image light brightness,
Power consumption is saved, system heat generation amount is reduced.And it allows users to see true external environment, passes through virtual image and true ring
The Overlapping display in border achievees the effect that augmented reality.
Embodiment two
A kind of AR display devices are present embodiments provided, as shown in fig. 7, the AR display devices, including image projection apparatus
With display optical path component.Show optical path component using polarization light path design.
With above-described embodiment one difference lies in：The image projection apparatus of the embodiment includes image source 11, fibre faceplate 12
With lens 13.It is fitted closely between side of the fibre faceplate 12 far from image source 11 and lens 13.
Wherein, lens 13 can be the lens group of a lens or multiple lens composition.It is saturating per face in lens or lens group
Mirror can be convex lens, concavees lens or convex lens and concavees lens arbitrarily combination etc., the face types of lens can be spherical surface, it is aspherical,
Light refraction, matching polarized light road component are completed to be imaged by free form surface etc., lens 13 jointly.
As shown in fig. 7, when the light that fibre faceplate 12 is sent out will be directed into lens 13, reduces light and enter thoroughly
The refringence of interface when mirror 13 improves lens upper surface transmitance, increases light efficiency, inhibits the production of stray light and ghost image
It is raw.Such as：The refractive index of air is 1, and the refractive index of lens is generally between 1.3~2.0, according to R=(0.61* λ)/(n*sin
θ) calculation formula (R is diffraction spot radius, and λ is optical wavelength, and n is image planes refractive index, and θ is aperture angle of incidence), improves the folding of image space
The rate of penetrating is capable of providing smaller diffraction pattern, improves imaging resolution, by improving image space refractive index, with relatively small angular aperture
Larger numerical aperture is realized, reduces the deflection angle of rim ray, reduces design difficulty.
In addition, AR display devices provided in this embodiment, fit closely between image source and lens, make optical system structure more
Step up to gather, volume smaller, weight are lighter, comfortable wearing.
In addition, by increasing fibre faceplate in image projection apparatus, side of the fibre faceplate far from image source is curved surface, shape
At similar curved image source, such image projection apparatus, which projects light, to be agreed with the optical system curvature of field, to improve entire imaging
The picture quality of system.
In addition, in the present embodiment, in conjunction with shown in Fig. 8, side of the fibre faceplate far from image source can not also with lens 13 it
Between fit closely.
In order to save length, the content identical with embodiment one of embodiment two may refer to above-described embodiment one, herein not
It repeats again.
Embodiment three
A kind of AR display devices are present embodiments provided, as shown in figure 9, the AR display devices, including image projection apparatus
With display optical path component.Show optical path component using polarization light path design.
Image projection apparatus includes image source 11, fibre faceplate 12, matching mirror 14 and lens 13.It should be noted that image
Grenade instrumentation can also only include image source 11, fibre faceplate 12 and matching mirror 14.
Mirror 14 is matched between image source 11 and lens 13, the side of matching mirror 14 and fibre faceplate 12 are far from image source 11
It is fitted closely between side, the other side is bonded with lens 13.Matching mirror 14 has high transparency and certain refractive index, matches mirror
14 refractive index is more than the refractive index of air.Matching mirror 14 can be made of transparent liquid material, such as water, alcohol etc.；
It can be made of transparent solid material, such as glass, resin etc.；Liquid crystal or semisolid material can also be used to be made.
When the material for matching mirror 14 is liquid, lens 13 and fibre faceplate 12 are provided between the side far from image source 11
Outer seal structure prevents matching mirror for example, closed frame, makes to form closed cavity between lens 13 and fibre faceplate 12
Material is lost in.It, can be straight between side of the fibre faceplate 12 far from image source 11 and lens 13 when the material for matching mirror 14 is solid
Matching connection mirror 14 is connect, without frame.That is side of the fibre faceplate 12 far from image source 11 and matching mirror 14 is directly connected to or leads to
Glue bonding is crossed, mirror 14 is matched and lens 13 is directly connected to or is bonded by glue.
AR display devices provided in this embodiment are first into submergence material in the image light that fibre faceplate 12 is sent out
In, submergence material has high transparency and certain refractive index, compared with air dielectric, reduces when light enters lens and has a common boundary
The refringence in face improves lens upper surface transmitance, increases light efficiency, while inhibiting the generation of stray light and ghost image.Example
Such as：The refractive index of air is 1, the refractive index of material is submerged generally between 1~2.7, according to R=(0.61* λ)/(n*sin θ)
Calculation formula (R is diffraction spot radius, and λ is optical wavelength, and n is image planes refractive index, and θ is aperture angle of incidence), improves the refraction of medium
Rate is capable of providing smaller diffraction pattern, improves imaging resolution, real with relatively small angular aperture by improving image space refractive index
Larger numerical aperture is showed, has reduced the deflection angle of rim ray, reduce design difficulty.Meanwhile, it is capable to so that element rows
It arranges compact, is convenient for adjustment, system strength high.
In order to save length, the content identical with embodiment one of embodiment three, such as：Show that optical path component uses polarised light
Road is designed, and may refer to above-described embodiment one, details are not described herein.
Example IV
The embodiment of the present invention additionally provides a kind of wearable AR equipment, including clamping piece and above-described embodiment one or embodiment
AR display devices recorded in two.
The wearable AR equipment can be but not limited to AR glasses, the AR helmets or AR masks.When wearable AR equipment is AR
When glasses, clamping piece is frame, and AR display devices are mounted on frame, are equivalent to the position of two eyeglasses.When wearable AR is set
When for being the AR helmets, clamping piece can be headpiece case, and AR display devices are installed on the face-port portion on front side of headpiece case.
The wearable AR equipment of the present embodiment is provided with above-mentioned AR display devices, the image projection dress in AR display devices
It sets and fits closely image source and fibre faceplate, display optical path component includes successively using polarization light path design, polarization light path design
Spectroscope, wave plate component and the curved surface half-reflecting mirror of arrangement, image projection apparatus are located at spectroscopical top, have on spectroscope
Polarization beam splitter.The image light being emitted from image source enters fibre faceplate and carries out light modulation, obtains separate perpendicular to fibre faceplate
In the light projection to spectroscope of the end face of image source side, polarization state is that the light of first direction penetrates polarization beam splitter in image light
Into external environment, the partial polarization state in image light is that the light of second direction is reflected on wave plate component；Pass through wave plate
Component is changed into circularly polarized light, is incident to curved surface half-reflecting mirror, and a part of light is projected to the external world, and another part is anti-by curved surface half
It penetrates after mirror reflection using wave plate component, the light that polarization state is first direction is transformed by circularly polarized light, through polarization beam splitter
Into human eye.By increasing fibre faceplate in image projection apparatus, side of the fibre faceplate far from image source is curved surface, forms class
Like curved surface image source, such image projection apparatus, which projects light, to be agreed with the optical system curvature of field, to improve entire imaging system
Picture quality.Meanwhile showing that optical path component using polarization light path design, allows users to the virtual graph for seeing big visible angle
Picture improves the efficiency of light energy utilization, improves image light brightness.In the case of same image light brightness demand, the AR is aobvious
Showing device can save energy consumption, reduce equipment heating amount.
Meanwhile it also having the following advantages that：Adhesion or gapless between fibre faceplate and lens, or matching mirror be located at image source with
Between lens, matches and fit closely between the side of side and fibre faceplate far from image source of mirror, the other side is bonded with lens.Make
Optical system structure is compacter, volume smaller, weight are lighter, comfortable wearing.By improving image space refractive index, with relatively small
Angular aperture realizes larger numerical aperture, reduces the deflection angle of rim ray, reduces design difficulty.Reduce lens friendship
The refringence at interface improves the transmitance of rim ray, reduces ghost image, and highlight.Element arrangements are compact, convenient for dress
It adjusts, system strength is high.Polarization optical system has been used, has promoted the energy efficiency of image light to 25%, brightness is obviously improved.It adopts
With polarization light path design.Side of the fibre faceplate far from image source can be designed to mutually agree with the optical system curvature of field, form curved surface
Image planes make the position that each luminous point is required all in optical system, so that the picture quality of entire imaging system is improved.Light
The optical fiber string diameter of fine panel can accomplish 1um or smaller, be much smaller than the Pixel Dimensions of image source, at this time each pixel on image source
Multiple fiber optic points can be corresponded to, the boundary of pixel cannot be also differentiated when being watched by optical system.
AR display devices provided in an embodiment of the present invention and wearable AR equipment technical characteristic having the same, so also can
Identical technical problem is solved, identical technique effect is reached.
It should be noted that in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (21)
1. a kind of AR display devices, which is characterized in that including image projection apparatus and display optical path component；
Described image grenade instrumentation includes image source and fibre faceplate, and the fibre faceplate closes on the side of the image source and the picture
It is fitted closely between source, the light that the image source is sent out enters by the fibre faceplate in the display optical path component；
The display optical path component includes the spectroscope being arranged in order and curved surface half-reflecting mirror.
2. AR display devices according to claim 1, which is characterized in that side of the fibre faceplate far from the image source
For concave/convex-surface type/plane.
3. AR display devices according to claim 1, which is characterized in that the display optical path component further includes：Wave plate group
Part.
4. AR display devices according to claim 3, which is characterized in that the spectroscope includes polarization beam splitter；
The polarization beam splitter is used for through the polarised light that polarization state is first direction, and reflected polarization state is the polarization of second direction
Light；
The first direction and the second direction are mutually perpendicular to.
5. AR display devices according to claim 4, which is characterized in that the spectroscope further includes spectroscope substrate；Institute
It states polarization beam splitter and is located at the side for closing on described image grenade instrumentation and the wave plate component, the spectroscope substrate is located at remote
Side from described image grenade instrumentation and the wave plate component.
6. AR display devices according to claim 1, which is characterized in that spectroscopical plane of reflection and the curved surface
Angle between the optical axis of half-reflecting mirror is α；Angle between the normal of the image source and spectroscopical plane of reflection is
β；α value ranges are β -10 ° between+10 ° of β, and 90 ° >=α >=0 °.
7. AR display devices according to claim 6, which is characterized in that β is 0 °~90 °.
8. AR display devices according to claim 6, which is characterized in that β is 40 °~50 °.
9. AR display devices according to claim 4, which is characterized in that when the polarised light of the first direction and described
The polarised light in two directions meet be mutually perpendicular under the premise of around the rotation of 0 °~360 ° of the direction that light is propagated when, the polarization divides
Light film and the wave plate component will also change corresponding angle.
10. AR display devices according to claim 3, which is characterized in that the wave plate component is quarter wave plate.
11. AR display devices according to claim 10, which is characterized in that the quarter wave plate is set to the spectroscope
Between the curved surface half-reflecting mirror.
12. AR display devices according to claim 10, which is characterized in that the quarter wave plate fits in the curved surface half
The inside of speculum.
13. according to claim 1-12 any one of them AR display devices, which is characterized in that described image grenade instrumentation also wraps
Include matching mirror and/or lens.
14. AR display devices according to claim 13, which is characterized in that when described image grenade instrumentation includes the picture
It is close between side and the lens of the fibre faceplate far from the image source when source, the fibre faceplate and the lens
Fitting.
15. AR display devices according to claim 13, which is characterized in that when described image grenade instrumentation includes the picture
When source, the fibre faceplate, the matching mirror and the lens, the side of the matching mirror and the fibre faceplate are separate described
It is fitted closely between the side of image source；The other side of the matching mirror is fitted closely with the lens.
16. AR display devices according to claim 15, which is characterized in that the refractive index of the matching mirror is 1~2.7.
17. AR display devices according to claim 15, which is characterized in that the matching mirror is by liquid material, liquid crystal, half
Solid-state material or solid material are constituted.
18. AR display devices according to claim 17, which is characterized in that when the matching mirror is liquid material, liquid crystal
Or when semisolid material, described image grenade instrumentation further includes sealing structure, and it is separate that matching mirror is sealed in the fibre faceplate
Between the side of image source and the lens.
19. AR display devices according to claim 17, which is characterized in that when the matching mirror is solid material, institute
Side, the matching mirror and the lens of the fibre faceplate far from image source are stated to be connected directly to one another.
20. AR display devices according to claim 1, which is characterized in that the image source is the image source or list of integrated optical source
One image source.
21. a kind of wearable AR equipment, which is characterized in that described in any one of clamping piece and the claims 1~20
AR display devices.
Priority Applications (29)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147336.9A CN108319019A (en) | 2018-02-12 | 2018-02-12 | AR display devices and wearable AR equipment |
| KR1020207026326A KR102455328B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system therefor |
| CN201980001727.2A CN110537134A (en) | 2018-02-12 | 2019-02-12 | Augmented reality equipment and its employed in optical system |
| EP19750326.1A EP3754407B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| CN201980001721.5A CN110537133A (en) | 2018-02-12 | 2019-02-12 | Wearable AR system, AR show equipment and its projection source mould group |
| KR1020207026193A KR102628264B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality devices and optical systems used in augmented reality devices |
| JP2020565011A JP7285579B2 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system therefor |
| EP19750619.9A EP3754408A4 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, and ar display device and projection source module thereof |
| PCT/CN2019/074868 WO2019154430A1 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, ar display device, and projection source module thereof |
| EP19751742.8A EP3754411A4 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, ar display device, and projection source module thereof |
| PCT/CN2019/074857 WO2019154428A1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device, optical system and half mirror employed therein |
| EP19750958.1A EP3754410A4 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device, optical system and half mirror employed therein |
| PCT/CN2019/074863 WO2019154429A1 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, and ar display device and projection source module thereof |
| JP2020565008A JP7418706B2 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system therefor |
| CN201980001716.4A CN110573933A (en) | 2018-02-12 | 2019-02-12 | Wearable AR system, AR display equipment and projection source module thereof |
| PCT/CN2019/074852 WO2019154426A1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| EP19750620.7A EP3754409A4 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| PCT/CN2019/074876 WO2019154432A1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| JP2020565009A JP7329207B2 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system and semi-reflector therefor |
| CN201980001731.9A CN110546550A (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| KR1020207026342A KR102564295B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system and semi-reflector therefor |
| CN201980001732.3A CN110537135A (en) | 2018-02-12 | 2019-02-12 | Augmented reality equipment and its employed in optical system and half-reflecting mirror |
| US16/930,061 US11693244B2 (en) | 2018-02-12 | 2020-07-15 | Augmented reality apparatus and optical system therefor |
| US16/930,156 US11693245B2 (en) | 2018-02-12 | 2020-07-15 | Wearable AR system, AR display device and its projection source module |
| US16/930,000 US11042040B2 (en) | 2018-02-12 | 2020-07-15 | Augmented reality apparatus and optical system therefor |
| US16/989,502 US11874466B2 (en) | 2018-02-12 | 2020-08-10 | Augmented reality apparatus, and optical system and semi-reflector therefor |
| US16/990,633 US11500205B2 (en) | 2018-02-12 | 2020-08-11 | Wearable AR system, AR display device and its projection source module |
| US17/326,014 US11460704B2 (en) | 2018-02-12 | 2021-05-20 | Augmented reality apparatus and optical system therefor |
| US18/325,986 US11988839B2 (en) | 2018-02-12 | 2023-05-30 | Augmented reality apparatus and optical system therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147336.9A CN108319019A (en) | 2018-02-12 | 2018-02-12 | AR display devices and wearable AR equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108319019A true CN108319019A (en) | 2018-07-24 |
Family
ID=62902982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147336.9A Pending CN108319019A (en) | 2018-02-12 | 2018-02-12 | AR display devices and wearable AR equipment |
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| Country | Link |
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| CN (1) | CN108319019A (en) |
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| CN111610630A (en) * | 2019-02-22 | 2020-09-01 | 舜宇光学（浙江）研究院有限公司 | Display optical machine and method thereof and near-to-eye display equipment |
| TWI717912B (en) * | 2019-11-25 | 2021-02-01 | 宏碁股份有限公司 | Head mounted display |
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