CN106842571A - The optical system of augmented reality equipment - Google Patents
The optical system of augmented reality equipment Download PDFInfo
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- CN106842571A CN106842571A CN201710036022.7A CN201710036022A CN106842571A CN 106842571 A CN106842571 A CN 106842571A CN 201710036022 A CN201710036022 A CN 201710036022A CN 106842571 A CN106842571 A CN 106842571A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
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Abstract
It is an object of the invention to provide a kind of optical system of augmented reality equipment,It is arranged between reflection and transmission spectroscope and human eye by by transparent display screen,And it is respectively provided with polarizer and 1/8 or quarter wave plate in the both sides of display screen,Display screen is set to transparent,Enhanced content can be made to be seen by human eye into the virtual image after reflection,In addition,Light in reality can also pass through display screen,Human eye is allowed to see reality,Display screen is absorbed in the linearly polarized photon that front sends by absorptive polarizer part,Do not enter human eye,Effectively veiling glare is separated,Display screen sequentially passes through 1/8 or quarter wave plate transmission in the linearly polarized photon that the back side sends,Reflection and transmission dichroic mirror,1/8 or quarter wave plate transmission,Display screen is transmitted,After the transmission of absorptive polarizer part,Into human eye,So as to expand the field of view angle of strengthening part.
Description
Technical field
The present invention relates to computer realm, more particularly to a kind of optical system of augmented reality equipment.
Background technology
In the market more than enhancing display device by the way of the free form surface of half-reflection and half-transmission adds compensating glass, this enhancing
The optical system of display device includes lens and display screen successively from human eye side, but is constrained to off axis reflector and face, nose
Limitation, the vertical direction angle of visual field for strengthening display portion is difficult to do big, the approximately less than 60 degree angles of visual field, it is difficult to accomplish enhanced portion
Divide and the field of view angle of real part is matched, for example, the light described in the patent document of Application No. CN200810167800.7
System, its maximum field of view angle also only has 54 degree, the far smaller than visual range of human eye.
Also having a kind of mode of use waveguide on the market strengthens display device, for example, Application No.
Optical system described in the patent document of CN201410210221.1 and CN201480036269.3, is limited to waveguide in itself
Property, the angle of visual field of its strengthening part is still difficult to do big.
In addition, for the first enhancing display device by the way of free curved surface prism above, because free form surface
Processed complex, and need to increase half-reflection and half-transmission plated film on free form surface, while need to carry out gluing with compensating glass below, from
By curved surface prism processed complex, it is more difficult to detect, while the requirement of half-reflection and half-transmission plated film is higher on free form surface, and compensating glass is glued
Required precision is also higher, while each part relative position tolerance is sensitive in optical system, installation difficulty is big.
For the enhancing display device of second fiber waveguide principle used above, maximum problem is that angle is difficult to expand
Greatly, visual field is greatly limited to the property and material of waveguide, simultaneously as it is Microstructure Optics element, processing that coupled apparatus is most
Difficulty is big, and required precision is high, and cost is also higher, simultaneously as having used the reason of grating, diffraction time is limited in human eye side
Relation, it is necessary to consider eliminate veiling glare problem.
The content of the invention
It is an object of the present invention to provide a kind of optical system of augmented reality equipment, can solve the problem that existing enhancing is aobvious
Show that the angle of visual field of the strengthening part of equipment is difficult to big problem as the angle of visual field of real part.
According to an aspect of the invention, there is provided a kind of optical system of augmented reality equipment, the augmented reality equipment
Optical system include optical unit, each optical unit since human eye side successively include absorptive polarizer part, display screen,
1/8 or quarter wave plate and reflection and transmission spectroscope, wherein,
The absorptive polarizer part, display screen, 1/8 wave plate, quarter wave plate are optical clear element, the display screen
The light for sending is linearly polarized photon.
Further, in the optical system of above-mentioned augmented reality equipment, the human eye, absorptive polarizer part, display screen,
1/8 or quarter wave plate and the spectroscopical optical axis of reflection and transmission all on same straight line.
Further, in the optical system of above-mentioned augmented reality equipment, the spectroscopical one side of reflection and transmission is provided with
The spectro-film of default reflectivity and transmissivity, is simultaneously provided with anti-reflection film in addition.
Further, in the optical system of above-mentioned augmented reality equipment, the light that the display screen sends is first linear
Polarised light, the optical direction of the absorptive polarizer part is orthogonal with the polarization direction of first linearly polarized photon.
Further, in the optical system of above-mentioned augmented reality equipment, the light that the display screen sends is first linear
Polarised light, the first linearly polarized photon that the display screen is sent in the absorptive polarizer part side is by the absorptive polarizer
Part absorbs.
Further, in the optical system of above-mentioned augmented reality equipment, extraneous natural light is by the reflection and transmission light splitting
After mirror, the light of a part is reflected, the light of another part pass sequentially through the reflection and transmission spectroscope, described 1/8 or
After quarter wave plate, display screen, continue there is some light to be absorbed by the absorptive polarizer part, the light of another part passes through institute
After stating absorptive polarizer part, human eye is injected.
Further, in the optical system of above-mentioned augmented reality equipment, the light that the display screen sends is first linear
Polarised light, the first linearly polarized photon that the display screen is sent in the 1/8 wave plate side is in first time by wave plate described in 1/8
When, after the first linearly polarized photon is converted into elliptically polarized light, the elliptically polarized light is by the reflection and transmission dichroic mirror
Afterwards, when again passing by 1/8 wave plate, then circularly polarized light is converted into, it is consistent with the absorptive polarizer part optical direction
Circularly polarized light component by after the absorptive polarizer part, injecting human eye；With the absorptive polarizer part thang-kng side
Absorbed by the absorptive polarizer part to the component of inconsistent circularly polarized light.
Further, in the optical system of above-mentioned augmented reality equipment, the light that the display screen sends is first linear
Polarised light, the first linearly polarized photon that the display screen is sent in the quarter wave plate side when first time is by quarter wave plate,
One linearly polarized photon is converted into circularly polarized light, after the circularly polarized light is by the reflection and transmission dichroic mirror, again passes by
During the quarter wave plate, then the second linearly polarized photon is converted into, second linearly polarized photon and the absorptive polarizer part
Optical direction is consistent, and second linearly polarized photon is completely by after the absorptive polarizer part, injecting human eye.
Further, in the optical system of above-mentioned augmented reality equipment, described 1/8 and/or quarter wave plate be composite wave plate or
Zero-th order waveplates.
Further, in the optical system of above-mentioned augmented reality equipment, described 1/8 and/or quarter wave plate for color difference eliminating
Wave plate.
Further, in the optical system of above-mentioned augmented reality equipment, the absorptive polarizer part fits in described aobvious
The close human eye side surface of display screen, described 1/8 or quarter wave plate fit in the display screen away from human eye side surface.
Further, in the optical system of above-mentioned augmented reality equipment, the reflection and transmission spectroscope is spherical mirror or non-
Spherical mirror.
Further, in the optical system of above-mentioned augmented reality equipment, the optical system includes symmetrical right and left eyes two
The individual optical unit, the absorptive polarizer part of each optical unit, display screen, 1/8 or quarter wave plate and reflection and transmission light splitting
The optical axis coincidence of mirror, used as the optical axis of each optical unit, the optical axis of the right and left eyes optical unit is respectively to away from other side's
Direction deflects predetermined angle.
Compared with prior art, the present invention is arranged between reflection and transmission spectroscope and human eye by by transparent display screen,
And it is respectively provided with polarizer and 1/8 or quarter wave plate in the both sides of display screen, display screen is set to transparent, can make enhanced
Content is seen into the virtual image by human eye after reflection, in addition, the light in reality also can allow human eye to see existing through display screen
Real, the linearly polarized photon that one side (front of display screen) of the display screen in human eye side sends can be inhaled by absorptive polarizer part
Receive, do not enter human eye, effectively separated veiling glare, display screen in the one side (back side of display screen) away from human eye side send
Linearly polarized photon sequentially pass through 1/8 or quarter wave plate transmission, reflection and transmission dichroic mirror, 1/8 or quarter wave plate transmission, display
After screen transmission, the transmission of absorptive polarizer part, into human eye, so as to expand the field of view angle of strengthening part, including expand increasing
The vertically and horizontally angle of visual field of strong part, realizes the field of view angle matching of strengthening part and real part.Meanwhile, because instead
Formula design is penetrated, the light of different wave length reflects in mirror surface, and the aberration of optical system is small.In addition, the present embodiment is not because have
Grating is used, so not because the veiling glare that brings of diffraction secondary, is not had and is shown using the enhancing of fiber waveguide principle and set
Standby similar spuious optical issue.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, it is of the invention other
Feature, objects and advantages will become more apparent upon：
Fig. 1 shows the strengthening part light path schematic diagram of the optical system of the augmented reality equipment of one embodiment of the invention；
Fig. 2 shows the light path schematic diagram of the real part of Fig. 1；
Fig. 3 shows the composite light path schematic diagram that Fig. 1 and Fig. 2 are combined into；
Fig. 4 shows that the strengthening part light path of the optical system of augmented reality equipment according to another embodiment of the present invention is illustrated
Figure；
Fig. 5 shows the light path schematic diagram of the real part of Fig. 4；
Fig. 6 shows the composite light path schematic diagram that Fig. 4 and Fig. 5 are combined into.
Same or analogous reference represents same or analogous part in accompanying drawing.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figs. 1 to 6, the present invention provides a kind of optical system of augmented reality equipment, including optical unit, each light
Learn unit includes absorptive polarizer part 2, display screen 3,1/8 or quarter wave plate 4 and reflection and transmission point successively since the side of human eye 1
Light microscopic 5, wherein,
The absorptive polarizer part 2, display screen 3,1/8 wave plate, quarter wave plate 4 (phase delay chip) are optical clear
Element, the light that the display screen 3 sends is linearly polarized photon.Here, the present embodiment is arranged on instead by by transparent display screen
Penetrate between transmission spectroscope and human eye, and polarizer and 1/8 or quarter wave plate are respectively provided with the both sides of display screen, show
Screen is set to transparent, enhanced content can be made to be seen by human eye into the virtual image after reflection, in addition, the light in reality also can be saturating
Display screen is crossed, allows human eye to see reality, the linearly polarized photon that one side (front of display screen) of the display screen in human eye side sends can
Absorbed with by absorptive polarizer part, do not enter human eye, effectively separated veiling glare, display screen in away from the one of human eye side
The linearly polarized photon that face (back side of display screen) sends sequentially pass through 1/8 or quarter wave plate transmission, reflection and transmission dichroic mirror,
1/8 or quarter wave plate transmission, display screen transmission, absorptive polarizer part transmission after, into human eye, so as to expand strengthening part
Field of view angle, including expand the vertically and horizontally angle of visual field of strengthening part, realize regarding for strengthening part and real part
Field angle automatching.Meanwhile, because reflective designs, the light of different wave length reflects in mirror surface, the aberration of optical system
It is small.In addition, the present embodiment is not because use grating, the veiling glare not brought because of diffraction secondary does not have and uses
The spuious optical issue that the enhancing display device of fiber waveguide principle is similar to.
Specifically, as shown in figs. 1 and 4, for strengthening part, the light sent from display screen 3 will not be passed directly
Be sown into human eye, but need to allow display screen 3 to send and the light that reflects from reflection and transmission spectroscope 5 can through display screen 4,
Into human eye 1, i.e. need the light absorbs that human eye is emitted directly toward from display screen, because this part is veiling glare, in addition, needing
The light returned by reflection and transmission dichroic mirror is allowed to pass through, such human eye just can be observed the amplification of interior Rongcheng on display screen
The virtual image, without the content being immediately seen on screen, be this has added absorption polarised light 2 in the front side of screen, and such display screen 3 is straight
The light towards human eye side that sending and receiving go out will be absorbed, and the light being reflected back is because there is wave plate 4, polarization direction
Change is there occurs, the light that polarization direction changes can pass through the absorption polarizer 2, so as to expand regarding for strengthening part
Rink corner.
In addition, as shown in figures 2 and 5, for real part, the natural light sent from reality is free polarization state,
After light is by reflection and transmission spectroscope 5, the light of a part is reflected, and the light of another part can be by reflection and transmission point
Light microscopic, is incident to 1/8 or quarter wave plate 4, because incident light is natural light, wave plate will not change the polarization state of light, light after
It is continuous to pass through transparent display screen 3 and absorption polarizer 2, into human eye 1, produce real world images.
In the optical system of the augmented reality equipment of one embodiment of the invention, the absorptive polarizer part 2, display screen 3,
1/8 wave plate 4, the profile of quarter wave plate 4 can be cuboid or cube, can be symmetrical structure in the type of face, but profile can not
It is symmetrical structure.The face type of reflection and transmission spectroscope 5 can be rotational symmetry structure, the relatively good processing of rotational symmetry structure, certainly
Irrotational symmetrical structure can also.Each face of the free curved surface prism of prior art is the significant surface of optical system, and
And be non-symmetrical structure, each component space status requirement is high, so for inclining, rotation etc. all can cause shadow to optical system
Ring.Each element of the present embodiment is all symmetrical structure in the type of face, and processing is simple, required precision is low, and installation requirement is low.In addition,
The exact shape of display screen of the invention can be arbitrary shape, such as rectangle, circle, abnormity.
In the optical system of the augmented reality equipment of one embodiment of the invention, the human eye, absorptive polarizer part, display
Screen, 1/8 or quarter wave plate and the spectroscopical optical axis of reflection and transmission are more prone to balance optical aberration all on same straight line, plus
Work is simple, required precision is low, and installation requirement is low.
In the optical system of the augmented reality equipment of one embodiment of the invention, the spectroscopical one side of reflection and transmission is set
There is the spectro-film of default reflectivity and transmissivity, the spectro-film can allow some light to pass through, some light reflection；It is described anti-
Penetrate the spectroscopical other one side of transmission and be provided with anti-reflection film.Here, because to realize the light path of enhanced light path and reality simultaneously,
It is indispensable, so the spectroscopical one side of the reflection and transmission is provided with the spectro-film of default reflectivity and transmissivity；In addition, being
Ensure that enough light can be passed through, so be simultaneously provided with anti-reflection film in addition.The spectro-film and anti-reflection film can be plated
Or it is attached at the reflection and transmission spectroscope surface.As shown in Figures 1 to 3, the spectro-film of default reflectivity and transmissivity can be set
The spectroscopical close display screen side (preceding surface 51) of reflection and transmission is placed in, anti-reflection film reflection and transmission is arranged in addition spectroscopical
Away from display screen side (surface 52 afterwards)；As shown in Figs. 4-6, it is also possible to be arranged at the spectro-film of default reflectivity and transmissivity
Reflection and transmission is spectroscopical away from display screen side (surface 52 afterwards), anti-reflection film is arranged at into reflection and transmission in addition spectroscopical close
Display screen side (preceding surface 51).As long as the spectro-film for having default reflectivity and transmissivity for one face of reflection and transmission spectroscope is i.e.
Can, there is spectro-film as in which face, without too big difference in using effect, but different coated surfaces are selected, optical design ginseng
Number can be different.
Connect an embodiment, specifically because light have reflection and transmit, for spectro-film preceding surface situation,
Virtual part can consider a face is only used as, but reality part will consider as an overall lenses, so for
The face type on surface is required afterwards, and after it will ensure that natural light is passed through, light angle does not change, and so just can guarantee that in people
Wear and do not wear augmented reality equipment and see that reality or nature do not deform；In addition, for reflection and transmission spectroscope 5
Material, that must be just transparent optical material, allow natural light to pass through, and also meet other some optical characteristics, for example
The plated film in another face, transmitance, formed precision and letter patience etc.；
For spectro-film rear surface situation, virtual part light also will be by reflection and transmission spectroscope 5 inside, so
For the part that preceding surface is also virtual part light path, it is also a lens entirety when design, to meet virtual
The such as the optical requirement of display, such as aberration, distortion, resolving power and material then will equally regard a lens as real part
On the whole it to meet some requirements, such as deformation, material described above etc. of real light path；
Additionally, anti-reflection film can be increased for another face in reflection and transmission spectroscope 5, it is also possible to be not added with anti-reflection
Film.Anti-reflection film can improve capacity usage ratio for optical property, while considering letter patience, have a face direct after all
Expose in atmosphere, and hardness and stability in view of plastic material in itself, furthermore it is also possible in reflection and transmission spectroscope
5 increase cured film, anti-fingerprint film and antifog film etc..
In the optical system of the augmented reality equipment of one embodiment of the invention, reflectivity and transmissivity are respectively 50%.Here,
When reflectivity and transmissivity are respectively 50%, the reflection and transmission spectroscope becomes half-reflecting half mirror.Certainly, reflectivity and thoroughly
The rate of penetrating can also be the capacity usage ratio meeting slight change of other ratios, simply reality part and strengthening part, but must be
There is part to reflect the effect with fractional transmission, it is indispensable because to realize the light path of enhanced light path and reality simultaneously.
In the optical system of the augmented reality equipment of one embodiment of the invention, the light that the display screen sends is First Line
Property polarised light, the optical direction of the absorptive polarizer part is orthogonal with the polarization direction of first linearly polarized photon.Here,
When the optical direction of the absorptive polarizer part is orthogonal with the polarization direction of first linearly polarized photon, from display screen front
The first linearly polarized photon for sending can all be absorbed by the absorptive polarizer part, from whole light that display screen front sends
Line is best all without human eye, such assimilation effect is injected.
In the optical system of the augmented reality equipment of one embodiment of the invention, as shown in figs. 1 and 4, for strengthening part
Speech, the light that the display screen 3 sends is the first linearly polarized photon, and the display screen 3 is sent out in the side of absorptive polarizer part 2
The first linearly polarized photon for going out is absorbed by the absorptive polarizer part 3.Here, in order to the light for not allowing display screen to send directly enters
Enter human eye, the phase-delay difference brought here with incidence angles degree and produce with absorptive polarizer part optical direction not
Consistent light, can be shown the principle that the absorptive polarizer part on front side of screen absorbs, and allow the absorptive polarizer part to inhale
The light that receipts are sent by display screen front, greatly reduces the influence of veiling glare, subsequently to allow the light warp at the display screen back side anti-
After penetrating expansion angle, human eye is entered back into, it is to avoid if without the absorptive polarizer part, human eye will be immediately seen display screen
The problem of image, if human eye is immediately seen the image of display screen, is primarily due to human eye with display screen from obtaining close to too, and human eye cannot
See the image of display screen clearly, secondly, the image of display screen is not amplified, and enhanced effect is not had, so this hair
The reflected reflection image expanded after angle of light at the bright use display screen back side, human eye can see and is reflected back by display screen
Amplification the virtual image.
It is nature from reality as shown in figures 2 and 5 in the optical system of the augmented reality equipment of one embodiment of the invention
In the natural light that sends by the reflection and transmission spectroscope 5 after, the light of a part is reflected, the light of another part according to
It is secondary by the reflection and transmission spectroscope 5, described 1/8 or quarter wave plate 4, display screen 3 after, continue to have some light by the suction
Receipts formula polarizer 2 absorbs, and after the light of another part is by the absorptive polarizer part 2, injects human eye, it is achieved thereby that
The light path of real part.Here, the natural light sent from reality be free polarization state, light by reflection and transmission spectroscope it
Afterwards, a part of light is reflected, and the light of another part can be incident to 1/8 or 1/4 ripple by reflection and transmission spectroscope
Piece because incident light is natural light, 1/8 or quarter wave plate will not change the polarization state of light, light continues through display screen,
The light of part can be absorbed on absorption polarizer, and the light of remainder passes through, and into human eye, produce real world images.
Composite light path that Fig. 1 and Fig. 2 are combined into is as shown in figure 3, the composite light path that is combined into of Fig. 4 and Fig. 5 is as shown in Figure 6.
In the optical system of the augmented reality equipment of one embodiment of the invention, when using 1/8 wave plate, to strengthening part
Speech, the light that the display screen sends is the first linearly polarized photon, the First Line that the display screen sends in the 1/8 wave plate side
Property polarised light when first time is by wave plate described in 1/8, after the first linearly polarized photon is converted into elliptically polarized light, the ellipse
After polarised light is by the reflection and transmission dichroic mirror, when again passing by 1/8 wave plate, then circularly polarized light is converted into, with
The component of the consistent circularly polarized light of the absorptive polarizer part optical direction is by after the absorptive polarizer part, injecting people
Eye, so as to realize the expansion to the angle of visual field of strengthening part；The circle inconsistent with the absorptive polarizer part optical direction is inclined
The component of light of shaking is absorbed by the absorptive polarizer part, eliminates human eye veiling glare.
In the optical system of the augmented reality equipment of one embodiment of the invention, when using quarter wave plate, to strengthening part
Speech, the light that the display screen sends is the first linearly polarized photon, the First Line that the display screen sends in the quarter wave plate side
When first time is by quarter wave plate, the first linearly polarized photon is converted into circularly polarized light to property polarised light, and the circularly polarized light is by institute
After stating reflection and transmission dichroic mirror, when again passing by the quarter wave plate, then the second linearly polarized photon is converted into, described
Bilinear polarised light is consistent with the absorptive polarizer part optical direction, and second linearly polarized photon is completely by the suction
After receipts formula polarizer, human eye is injected, so as to realize the expansion to the angle of visual field of strengthening part.Here, different in order to distinguish
The polarization direction of linearly polarized photon, by the linearly polarized photon of two kinds of different polarization directions be referred to as the first linearly polarized photon and
Second linearly polarized photon, the polarization direction of the first linearly polarized photon is orthogonal with the polarization direction of the second linearly polarized photon, and described
Bilinear polarised light is consistent with the optical direction of the absorptive polarizer part, and second linearly polarized photon is completely by described
Absorptive polarizer part, the situation for being partly absorbed the absorption of formula polarizer is not had, so compared to the 1/8 of a upper embodiment
Wave plate, this example uses quarter wave plate, and capacity usage ratio can be higher.
In the optical system of the augmented reality equipment of one embodiment of the invention, 1/8 wave plate can be composite wave plate or zero
Level wave plate, the quarter wave plate can be composite wave plate or zero-th order waveplates, so as to meet various application demands.
In the optical system of the augmented reality equipment of one embodiment of the invention, described 1/8 and/or quarter wave plate for eliminate color
Poor wave plate such that it is able to while the angle of visual field of strengthening part is expanded, preferably color difference eliminating.The ripple of the color difference eliminating
Piece can be composite wave plate or zero-th order waveplates.
In the optical system of the augmented reality equipment of one embodiment of the invention, as shown in Figures 1 to 6, the absorption polarization
Device 2 fits in the close human eye side surface of the display screen 3, and described 1/8 or quarter wave plate 4 fit in the remote of the display screen 3
From human eye side surface because, the absorptive polarizer part and described 1/8 or quarter wave plate it is very thin, using laminating by the way of, can
To facilitate installation.Certainly, the absorptive polarizer part can not also fit but be in close proximity to the close human eye side of the display screen
Surface, described 1/8 or quarter wave plate can not also fit but be in close proximity to the display screen away from human eye side surface.
In the optical system of the augmented reality equipment of one embodiment of the invention, the spectroscopical effect of the reflection and transmission be by
The light line reflection sent from display screen, while the light in alloing reality is transmitted into human eye, it is as shown in Figures 1 to 6, described anti-
Transmission spectroscope is penetrated for that can be camber reflection transmission spectroscope, for example, it may be spherical mirror or aspherical mirror.Wherein, it is aspherical
Mirror difference rectification effect more preferably, specific optical design requirements is may depend on using the reflection and transmission spectroscope of which kind of face type.
In the optical system of the augmented reality equipment of one embodiment of the invention, the optical system includes symmetrical right and left eyes
Two optical units, the absorptive polarizer part of each optical unit, display screen, 1/8 or quarter wave plate and reflection and transmission point
The optical axis coincidence of light microscopic be all on same straight line, as the optical axis of each optical unit, the right and left eyes optical unit
Optical axis deflects predetermined angle to the direction away from other side respectively.In the present embodiment, two pieces of optical units of separation, Er Qieguang are used
Had a certain degree between unit, aobvious optical unit is inclined to both sides respectively, due to the optical axis of the right and left eyes optical unit
Predetermined angle is deflected to the direction away from other side respectively, the overall angle of visual field of optical system can be allowed to become big, left eye left side can be with
See broader angle, right eye right side is it will also be seen that broader angle, while the interference of eyeglass and people's nose can be avoided, reality
Now there is broader overall angle of visual field than existing augmented reality equipment, when user uses, right and left eyes can feel that remaining light is regarded
The presence of feel, feeling of immersion when improving user using augmented reality equipment, in addition, the optical axis of the right and left eyes optical unit point
Processed, it is necessary to make piecemeal to image when not deflecting predetermined angle to the direction away from other side.
In the optical system of the augmented reality equipment of one embodiment of the invention, the predetermined angle is less than or equal to 30 degree,
This, by the optical axis of the right and left eyes optical unit from the original direction parallel with the positive apparent direction of human eye respectively to away from other side's
Direction deflection is that left eye optical axis is deflected and is less than or equal to the left by the positive apparent direction of human eye less than or equal to 30 degree, i.e. left eye field of view center
30 degree, right eye field of view center is that right eye optical axis is deflected less than or equal to 30 degree to the right by the positive apparent direction of human eye such that it is able to met
User's right and left eyes feel the demand of the presence of remaining light vision.
In sum, the present invention is arranged between reflection and transmission spectroscope and human eye by by transparent display screen, and
The both sides of display screen are respectively provided with polarizer and 1/8 or quarter wave plate, and display screen is set to transparent, can pass through enhanced content
Seen by human eye into the virtual image after reflection, in addition, the light in reality can also pass through display screen, allow human eye to see reality, show
Shielding the linearly polarized photon that the one side (front of display screen) in human eye side sends can be absorbed by absorptive polarizer part, not enter
Human eye, has effectively separated veiling glare, display screen in the one side (back side of display screen) away from human eye side send it is linear partially
The light that shakes sequentially pass through 1/8 or quarter wave plate transmission, reflection and transmission dichroic mirror, 1/8 or quarter wave plate transmission, display screen transmission,
After the transmission of absorptive polarizer part, into human eye, so as to expand the field of view angle of strengthening part, including expand strengthening part
Vertically and horizontally the angle of visual field, realizes the field of view angle matching of strengthening part and real part.Meanwhile, because reflective set
Meter, the light of different wave length reflects in mirror surface, and the aberration of optical system is small.In addition, the present embodiment is not because use
Grating, so the veiling glare not brought because of diffraction secondary, is not had and be similar to using the enhancing display device of fiber waveguide principle
Spuious optical issue.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the application to the application
God and scope.So, if these modifications of the application and modification belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprising these changes and modification.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.This
Outward, it is clear that " including " word is not excluded for other units or step, odd number is not excluded for plural number.The multiple stated in device claim
Unit or device can also be realized by a unit or device by software or hardware.The first, the second grade word is used for table
Show title, and be not offered as any specific order.
Claims (13)
1. a kind of optical system of augmented reality equipment, wherein, including optical unit, each optical unit since human eye side according to
It is secondary including absorptive polarizer part, display screen, 1/8 or quarter wave plate and reflection and transmission spectroscope, wherein,
The absorptive polarizer part, display screen, 1/8 wave plate, quarter wave plate are optical clear element, and the display screen sends
Light be linearly polarized photon.
2. the optical system of augmented reality equipment according to claim 1, wherein, the human eye, absorptive polarizer part,
Display screen, 1/8 or quarter wave plate and the spectroscopical optical axis of reflection and transmission are all on same straight line.
3. the optical system of augmented reality equipment according to claim 1, wherein, the spectroscopical one side of reflection and transmission
The spectro-film of default reflectivity and transmissivity is provided with, anti-reflection film is simultaneously provided with addition.
4. the optical system of augmented reality equipment according to claim 1, wherein, the light that the display screen sends is the
One linearly polarized photon, the optical direction of the absorptive polarizer part is orthogonal with the polarization direction of first linearly polarized photon.
5. the optical system of the augmented reality equipment according to any one of Claims 1-4, wherein, the display screen sends
Light be the first linearly polarized photon, the first linearly polarized photon quilt that the display screen sends in the absorptive polarizer part side
The absorptive polarizer part absorbs.
6. the optical system of the augmented reality equipment according to any one of Claims 1-4, wherein, extraneous natural light is passed through
After the reflection and transmission spectroscope, the light of a part is reflected, and the light of another part passes sequentially through the reflection and transmission
After spectroscope, described 1/8 or quarter wave plate, display screen, continue there is some light to be absorbed by the absorptive polarizer part, it is another
Partial light is by after the absorptive polarizer part, injecting human eye.
7. the optical system of the augmented reality equipment according to any one of Claims 1-4, wherein, the display screen sends
Light be the first linearly polarized photon, the first linearly polarized photon that the display screen is sent in the 1/8 wave plate side is for the first time
By during wave plate, after the first linearly polarized photon is converted into elliptically polarized light, the elliptically polarized light is by the reflection described in 1/8
After transmission dichroic mirror, when again passing by 1/8 wave plate, then circularly polarized light is converted into, with the absorptive polarizer
The component of the consistent circularly polarized light of part optical direction is by after the absorptive polarizer part, injecting human eye；It is absorption with described
The component of the inconsistent circularly polarized light of polarizer optical direction is absorbed by the absorptive polarizer part.
8. the optical system of the augmented reality equipment according to any one of Claims 1-4, wherein, the display screen sends
Light be the first linearly polarized photon, the first linearly polarized photon that the display screen is sent in the quarter wave plate side is for the first time
During by quarter wave plate, the first linearly polarized photon is converted into circularly polarized light, and the circularly polarized light is by the reflection and transmission spectroscope
After reflection, when again passing by the quarter wave plate, then the second linearly polarized photon is converted into, second linearly polarized photon and institute
State absorptive polarizer part optical direction consistent, second linearly polarized photon completely by after the absorptive polarizer part,
Inject human eye.
9. the optical system of the augmented reality equipment according to any one of Claims 1-4, wherein, described 1/8 and/or 1/4
Wave plate is composite wave plate or zero-th order waveplates.
10. the optical system of the augmented reality equipment according to any one of Claims 1-4, wherein, described 1/8 and/or 1/
4 wave plates are the wave plate of color difference eliminating.
The optical system of the 11. augmented reality equipment according to any one of Claims 1-4, wherein, the absorption polarization
Device fits in the close human eye side surface of the display screen, described 1/8 or quarter wave plate fit in the display screen away from people
Eye side surface.
The optical system of the 12. augmented reality equipment according to any one of Claims 1-4, wherein, the reflection and transmission point
Light microscopic is spherical mirror or aspherical mirror.
The optical system of the 13. augmented reality equipment according to any one of Claims 1-4, wherein, the optical system bag
Include two optical units of symmetrical right and left eyes, the absorptive polarizer part of each optical unit, display screen, 1/8 or 1/4 ripple
Piece and the spectroscopical optical axis coincidence of reflection and transmission, as the optical axis of each optical unit, the optical axis of the right and left eyes optical unit
Respectively predetermined angle is deflected to the direction away from other side.
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| CN108333777A (en) * | 2018-04-20 | 2018-07-27 | 深圳创维新世界科技有限公司 | Nearly eye shows optics module and near-eye display system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903777A (en) * | 2012-11-21 | 2015-09-09 | 拉斯特公司 | Augmented-reality optical module |
| US20150370074A1 (en) * | 2014-06-24 | 2015-12-24 | Fakespace Labs, Inc. | Head Mounted Augmented Reality Display |
| US20160077335A1 (en) * | 2014-09-16 | 2016-03-17 | Samsung Electronics Co., Ltd. | Optical device for augmented reality |
-
2017
- 2017-01-18 CN CN201710036022.7A patent/CN106842571A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903777A (en) * | 2012-11-21 | 2015-09-09 | 拉斯特公司 | Augmented-reality optical module |
| US20150370074A1 (en) * | 2014-06-24 | 2015-12-24 | Fakespace Labs, Inc. | Head Mounted Augmented Reality Display |
| US20160077335A1 (en) * | 2014-09-16 | 2016-03-17 | Samsung Electronics Co., Ltd. | Optical device for augmented reality |
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