CN206224047U - A kind of AR display devices and wear-type AR display devices - Google Patents
A kind of AR display devices and wear-type AR display devices Download PDFInfo
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- CN206224047U CN206224047U CN201621035417.2U CN201621035417U CN206224047U CN 206224047 U CN206224047 U CN 206224047U CN 201621035417 U CN201621035417 U CN 201621035417U CN 206224047 U CN206224047 U CN 206224047U
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Abstract
The utility model discloses a kind of AR display devices and wear-type AR display devices, including：First prism, the second prism and display screen；First prism includes the first lens unit, the second lens unit and reflector element；First lens unit is coaxially disposed near display screen, the first lens unit with display screen, and the optical axis of the first lens unit intersects with the optical axis of the second lens unit；Reflector element includes an inclined-plane；Second prism is sphere-prism, and the second prism includes an incidence surface and an inclined-plane, and inclined-plane is glued with the inclined-plane of reflector element to form a cemented surface；Wherein, the surface at least one of inclined-plane of the inclined-plane of reflector element and the second prism, is coated with while having the material of transmission and reflection function so that the transmissivity of cemented surface imposes a condition with reflectivity satisfaction.The characteristics of above-mentioned AR display devices have small size, big visual angle and correcting chromatic aberration.
Description
Technical field
The utility model embodiment is related to display technology field, more particularly to a kind of AR display devices and wear-type AR to show
Equipment.
Background technology
AR, (Augmented Reality), i.e. augmented reality, is also referred to as mixed reality.It passes through computer technology,
By virtual Information application to real world, real environment and virtual object have been added to same picture or sky in real time
Between simultaneously exist.AR travel in virtual reality and it is true between, it not only presents the information of real world, and will be virtual
Information shows that two kinds of information are complementary to one another, are superimposed simultaneously.In the augmented reality for visualizing, user is shown using the helmet
Device, is synthesized together real world and computer graphic are multiple, just it can be seen that the real world is around it.
Augmented reality Display Technique, combines computer graphics techniques, computer simulation technique, sensor technology, display
Various science and technology such as technology, it creates a virtual information environment on Multi information space, can make user that there is body to face it
The feeling of immersion in border, with the interaction capacity perfect with environment, and helps to inspire design.
But the visual angle of current AR equipment is universal smaller, majority at 20-30 ° or so, greatly have impact on visual effect and
With the interactive experience of real world.In order to improve Consumer's Experience, miniaturization, lightweight and the big angle of visual field are that AR display devices are needed badly
The problem of solution.
Utility model content
The utility model provides a kind of AR display devices and wear-type AR display devices, to obtain compact conformation, lightweight
With the miniaturization wear-type AR display devices of the big angle of visual field.
The utility model embodiment provides a kind of augmented reality AR display devices, including：
First prism (2), the second prism and display screen (4)；
First prism (2) includes the first lens unit, the second lens unit and reflector element；The first lens list
Unit is coaxially disposed near the display screen (4), first lens unit with the display screen (4), first lens unit
Optical axis intersect with the optical axis of second lens unit；Wherein, first prism (2) is double sphere-prisms, described first
Lens unit and second lens unit are spherical lens；The reflector element be located at first lens unit with it is described
Between second lens unit, the reflector element includes an inclined-plane；
Second prism is sphere-prism, and second prism includes an incidence surface (S4) and an inclined-plane, described
Inclined-plane is glued with the inclined-plane of the reflector element to form a cemented surface (S7), and the incidence surface (S4) is sphere, the incidence surface
(S4) optical axis is parallel with the optical axis of second lens unit；
Wherein, the inclined-plane of the reflector element is coated with simultaneously with the surface at least one of the inclined-plane of second prism
Material with transmission and reflection function so that the transmissivity of the cemented surface (S7) imposes a condition with reflectivity satisfaction.
Further, second prism is double cemented prisms；Second prism is by the first sphere-prism (5) and second
Sphere-prism (6) gluing is formed；
First sphere-prism (5) includes the first sphere, the first inclined-plane, and for second sphere-prism
(6) first surface of laminating；Wherein, first inclined-plane is glued with the inclined-plane of the reflector element, constitutes the cemented surface
(S7)；
Second sphere-prism (6) includes the second sphere, the second inclined-plane, and for first sphere-prism
(5) second surface of laminating；Second sphere is the incidence surface (S4)；
The first surface and the second surface are glued, make the optical axis of first sphere and the light of second sphere
Axle is parallel；
Wherein, reflecting material is coated with second inclined-plane to form the first reflecting surface (S6), plated on first sphere
There is reflecting material to form the second reflecting surface (S5).
Further, also including the first lens (1), first lens (1) near second lens unit, and with institute
The second lens unit is stated to be coaxially disposed.
Further, also including the second lens (3)；
Second lens (3) between the display screen (4) and first prism (2), second lens (3)
It is biconcave lens, second lens (3) are near a concave surface of first prism (2) and first lens unit
Sphere (S2) is glued.
Further, the optical axis of first lens unit is vertical with the optical axis of second lens unit, the gluing
Face (S7) optical axis, the optical axis angle at 45 ° of second lens unit respectively with first lens unit.
Further, the angle between the optical axis of first inclined-plane and first sphere is 45 °；Second inclined-plane
And the angle between the optical axis of second sphere is 45 °.
Further, second sphere is convex surface, and antireflective film, the incidence surface of formation are coated with second sphere
(S4) it is total transmissivity face.
Further, total reflection film is coated with second inclined-plane, first reflecting surface (S6) of formation is total reflection
Face.
Further, first sphere is convex surface, and total reflection film, the institute of formation are coated with the convex surface of first sphere
The second reflecting surface (S5) is stated for fully reflecting surface.
Further, the surface of at least one of the first surface and the second surface is coated with antireflective film.
Further, the cemented surface (S7) is semi-transparent semi-reflecting face.
Further, first lens (1) are positive lens, and first lens (1) are near second lens unit
One side be convex surface, the convex surface is for aspherical；First lens (1) are recessed away from the one side of second lens unit
Face, the concave surface is aspherical or sphere.
Further, first prism (2) be first lens unit, second lens unit and the reflection
The integrative-structure that unit is combined into；Or,
First prism (2) is first lens unit, second lens unit respectively with the reflector element
Double sphere cemented prisms of gluing.
The utility model embodiment provides a kind of augmented reality AR display devices, including any AR in above-described embodiment
Display device.
In above-described embodiment, the first prism (2) and the second prism cementing, the first prism (2) include two spheres and one
The sphere (S2) on inclined-plane, i.e. the first lens unit, the sphere (S1) of the second lens unit and the inclined-plane of reflector element；Second prism
Including a sphere and an inclined-plane, the inclined-plane of the first prism (2) and the inclined-plane gluing of the second prism form a cemented surface (S7),
Because at least one of inclined-plane, inclined-plane of the second prism of the first prism (2) are coated with while having reflection and the material for transmiting, make
The light either transmitted into the first prism (2) is obtained, the light into the second prism is still transmitted, can be occurred in cemented surface (S7)
Transmission can reflect again.Because the first prism (2) includes two spheres, the incidence surface (S4) of the second prism is also sphere, the
Two spheres of one prism (2) and the optical axis of incidence surface (S4) all intersect along different directions with cemented surface (S7) so that a part
Virtual reality image light from display screen (4), from after sphere (S2) transmission and amplification of the first lens unit, transmits into reflection
Unit, and reflected in cemented surface (S7), a part of true picture light from true environment, from the incidence surface of the second prism
(S4) after transmiting and amplify, transmit into the second prism, and transmitted in cemented surface (S7), transmitted in cemented surface (S7)
True picture light with after the mixing of virtual reality image light that cemented surface (S7) reflects is superimposed, through the ball of the second lens unit
After face (S1) occurs transmission and amplifies, the mixed image of an amplification is obtained.
Be integrated in a device for two spheres and an inclined-plane with transmission, reflex by the first prism (2), the
One sphere and one are had transmission by two prisms simultaneously, the inclined-plane of reflex is integrated in a device, with following work
With：First, cemented surface (S7) is acted on turn light rays, the steering for transmiting the light into the first prism (2) is realized, it is to avoid
Optical lens system one direction length is long, makes the volume of optical lens system smaller, lighter；Second, saturating from the second prism
The true picture light for being mapped to cemented surface (S7) can mix and be superimposed with the reflected light reflected in cemented surface (S7), can be by
Virtual reality image and true picture into the first prism (2) are merged；Third, by the first lens unit, the second lens
Unit and reflector element are integrated in the first prism (2), and by the first prism (2) and the second prism cementing, can be reduced
The assembly space of mirror quantity and saving lens, realizes the volume miniaturization of whole optical lens system.
Brief description of the drawings
Accompanying drawing is used for providing being further understood to of the present utility model, and constitutes a part for specification, with this practicality
New embodiment is used to explain the utility model together, does not constitute to limitation of the present utility model.In the accompanying drawings：
A kind of structural representation of augmented reality AR display devices that Fig. 1 a are provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 1 b are provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 2 is provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 3 is provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 4 is provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 5 is provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 6 is provided for the utility model embodiment；
A kind of structural representation of augmented reality AR display devices that Fig. 7 is provided for the utility model embodiment；
A kind of light path schematic diagram of augmented reality AR display devices that Fig. 8 to Fig. 9 is provided for the utility model embodiment.
Specific embodiment
In order that the utility model solved technical problem, technical em- bodiments and it is effective become more apparent, with
Lower combination Figure of description is illustrated to preferred embodiment of the present utility model, it will be appreciated that preferred reality described herein
Apply example and be merely to illustrate and explain the utility model, be not used to limit the utility model.And in the case where not conflicting,
The feature in embodiment and embodiment in the application can be mutually combined.
What deserves to be explained is, in the utility model embodiment, the correlation of the first prism and the second prism is described for convenience
Faceted pebble, the faceted pebble with identical function or same characteristic features is described with " first " and " second ", and not comprising the first prism and second
There is the implication of multiple these faceted pebbles in prism.
Embodiment 1
As shown in Figure 1a, the utility model embodiment provides a kind of augmented reality AR display devices, including：First prism
(2), the second prism 100 and display screen (4)；
First prism (2) includes the first lens unit, the second lens unit and reflector element；First lens unit is near aobvious
Display screen (4), the first lens unit is coaxially disposed with display screen (4), the light of the optical axis of the first lens unit and the second lens unit
Axle intersects；Wherein, the first prism (2) is double sphere-prisms, and the first lens unit and the second lens unit are spherical lens；Instead
Penetrate unit to be located between the first lens unit and the second lens unit, reflector element includes an inclined-plane；
Second prism 100 is sphere-prism, and the second prism 100 includes an incidence surface (S4) and an inclined-plane, the second rib
The inclined-plane of mirror 100 is glued with the inclined-plane of reflector element to form a cemented surface (S7), and incidence surface (S4) is sphere, incidence surface (S4)
Optical axis is parallel with the optical axis of the second lens unit；
Wherein, the inclined-plane of reflector element is coated with while having with the surface at least one of the inclined-plane of the second prism 100
Transmission and the material of reflection function so that the transmissivity of cemented surface (S7) imposes a condition with reflectivity satisfaction.
The ratio between the transmissivity of above-mentioned functions film and reflectivity meet and impose a condition, and such as transmissivity is 60%, and reflectivity is
40%, or transmissivity is 40%, reflectivity is 60%.The transmissivity of above-mentioned cemented surface (S7) and reflectivity can be with equal, thoroughly
Penetrating the ratio between rate and reflectivity can also take other values, and such as 4:3 etc..The setting bar that the ratio between transmissivity and reflectivity of functional membrane meet
Part can also be other values so that the reflected light reflected on functional membrane surface and the transmission transmitted on functional membrane surface
The ratio of light is suitable.
Preferably, functional membrane is half-reflection and half-transmission deielectric-coating, and half-reflection and half-transmission deielectric-coating is zirconium oxide and/or silica.It is semi-transparent
The reflectivity and transmitance of half reflection deielectric-coating are 1:1, the light half for will incide the first concave surface reflects, and one
Half transmits.
In above-mentioned AR display devices, display screen, with the change of optics size, is shown using 0.7 cun or 0.5 cun screen
The size of screen can also use other any suitable dimensions.
The image light that display screen (4) sends is virtual reality image light.From the incidence surface (S4) of the second prism transmit into
Light is the true picture light of true environment, two spheres of the first prism (2) and the optical axis of incidence surface (S4) along different directions all
Intersect with cemented surface (S7) so that cemented surface (S7) realizes the mixing of virtual reality image light and true picture light and is superimposed.
Preferably, the first prism (2) selects high index of refraction, abbe number glass high to make, it is preferred that the first prism
(2) it is integrative-structure that the first lens unit, the second lens unit and reflector element are combined into, the first prism (2) is including two
Individual sphere and some inclined-planes, two spheres are respectively the spheres (S1) of the sphere (S2) of the first lens unit, the second lens unit,
First lens unit, the second lens unit and reflector element are combined as a whole structure, as shown in Figure 1a, are avoided that assembling is missed
Difference, is conducive to the volume compact of AR display devices.The inclined-plane of the second prism 100 is glued with the inclined-plane of reflector element, it is also possible to subtract
The rigging error of small whole AR display devices.
First lens unit and the second lens unit are spherical lens, and the first lens unit can be convex lens (as schemed
1a), or concavees lens (such as Fig. 1 b), when the sphere of the first lens unit is convex surface, can the size of display screen limited
System, it is impossible to excessive, so requires to improve the resolution ratio of display screen, while the aberration for producing is also larger, therefore, it is aobvious in order to reduce
The volume of display screen and whole display device carries out degree chromatic aberration correction higher, it is necessary to set lens in optical system, such as
One lens for being used for correcting chromatic aberration is set between display screen and the first lens；When the sphere of the first lens unit is concave surface
When, bigger display screen is adapted to, while can be with color difference eliminating.
Optionally, in above-mentioned AR display devices, the first lens unit, the second lens unit and reflector element can also be single
One lens, the first prism (2) can also for the first lens unit, the second lens unit respectively with reflector element gluing
Double sphere cemented prisms.
Reflector element includes an inclined-plane, and reflecting material is coated with reflector element to form a reflecting surface, refers in reflection
Film of the plating with high reflectance on the inclined-plane of unit, forms a reflecting surface.If the first lens unit, the second lens list
Unit and reflector element are single lens, then reflector element equivalent to a prism, reflector element and the first lens unit,
The cemented surface of the second lens unit refers to, two rectangular surfaces relative with the inclined-plane of prism, and the reflecting surface of reflector element is logical
Cross film of the plating with high reflectance on the inclined-plane of prism and formed.
The sphere (S2) of the first lens unit is convex surface (or concave surface) so that the virtual reality image light from display screen
Into the virtual image amplified after the sphere (S2) of the first lens unit, (S2 may also correct for a part to the sphere of the first lens unit
Aberration.The sphere (S1) of the second lens unit is convex surface (or concave surface) so that virtual reality image is passed through after reflective surface
During sphere (S1) of the second lens unit, it is exaggerated again in the sphere (S1) of the second lens unit.
The sphere (S2) of the first lens unit and sphere (S1) curvature of the second lens unit can be with identical, it is also possible to no
Together.
Preferably, in first prism (2) of above-mentioned AR display devices, the sphere (S2) of the first lens unit and the second lens
The curvature of the sphere (S1) of unit is identical.
Preferably, in order to increase the transmitance of light, the sphere (S2) and the sphere of the second lens unit of the first lens unit
(S1) surface is coated with the antireflective film of same size, and antireflective film can be trilamellar membrane framework, and outermost layer can be anti-reflection λ/4 wavelength
Magnesium fluoride MgF2, intermediate layer be anti-reflection λ/2 wavelength zirconium oxide ZrO2, innermost layer is anti-reflection λ/4 ripple against glass substrate
Cerium fluoride CeF3 long, or other ready-made antireflective films for designing, wherein λ are visible wavelength, such as λ=550nm.
Antireflective film can also be other ready-made antireflective films for designing.
Because PMMA (Polymethyl Methacrylate, polymethyl methacrylate) has easy processing, density is only normal
The characteristics of with the half of glass, be the compact conformation for ensureing above-mentioned AR display devices, reduces volume, while mitigating weight, this reality
PMMA is selected with the first prism (2) and the glass material of the second prism 100 in new embodiment, lucite is commonly called as.
At least one of the inclined-plane of the first prism (2), inclined-plane of the second prism 100 are coated with while having reflection and transmiting
Material so that either transmit the light into the first prism (2), the light into the second prism 100 still transmitted, in cemented surface
(S7) transmission can occur and can reflects.
In preferred embodiment, part reflective semitransparent film is coated with the inclined-plane of the reflector element of the first prism (2) so that cemented surface
(S7) it is half-reflection and half-transmission face.The reflectivity and transmitance of semi-transflective reflective film are 1:1, the light for the first concave surface will to be incided
Half is reflected, and half is transmitted.
Due to two spheres of the first prism (2) and the optical axis of incidence surface (S4) along different directions all with cemented surface (S7) phase
Hand over so that virtual reality image light of the part from display screen (4), from sphere (S2) transmission and amplification of the first lens unit
Afterwards, transmit into reflector element, and reflected in cemented surface (S7), a part of true picture light from true environment, from the
After incidence surface (S4) transmission and amplification of two prisms 100, transmit into the second prism 100, and transmitted in cemented surface (S7),
The true picture light that cemented surface (S7) is transmitted is superimposed with the virtual reality image light mixing reflected in cemented surface (S7)
Afterwards, after transmission occurring and amplifies through the sphere (S1) of the second lens unit, the mixed image of an amplification is obtained.
In preferred embodiment, the optical axis of the first lens unit is vertical with the optical axis of the second lens unit, cemented surface (S7) point
The optical axis angle at 45 ° of optical axis, the second lens unit not with the first lens unit.
In preferred embodiment, optical axis and the angle of cemented surface (S7) of the sphere of the incidence surface (S4) of the second prism 100 are
45°。
In preferred embodiment, the incidence surface (S4) of the second prism 100 is total transmissivity face.
First prism (2) is the integrative-structure that the first lens unit, the second lens unit and reflector element are combined into, or
First prism (2) is double sphere cemented prisms of the first lens unit, the second lens unit and reflector element gluing.
In above-mentioned AR real devices, display screen (4), the first lens unit constitute a virtual image objective lens so that come
From the virtual reality image light of display screen (4) from after the transmission of the first lens unit, cemented surface (S7) is transmitted to and in cemented surface
(S7) reflected on；
Second prism 100 constitutes a true picture objective lens so that the true picture light from real world is from entering light
After face (S4) transmits and amplifies, transmitted on cemented surface (S7)；
Reflector element, the second lens unit constitute an actual and virtual hybrid ocular group so that occur in cemented surface (S7)
The virtual reality image light of reflection is mixed and is superimposed with the true picture light for transmiting, then through the second lens unit
After transmission and amplification, the enlarged drawing after a virtual reality image is superimposed with true picture is obtained.
Embodiment 2
As shown in Fig. 2 the utility model embodiment provides a kind of augmented reality AR display devices, it is used to reduce the first prism
(2) volume, including：First prism (2), the second prism 100 and display screen (4)；Also include：First lens (1), the first lens
(1) near the second lens unit, and it is coaxially disposed with the second lens unit.
The particular content of the first prism (2), the second prism 100 and display screen (4), referring to above-described embodiment, herein no longer
It is tired to state.
For the first lens (1), the first lens (1) are positive lens, one side of the first lens (1) near the second lens unit
It is convex surface, convex surface is aspherical；First lens (1) are concave surface away from the one side of the second lens unit, and concave surface is aspherical or ball
Face.
Increasing the purpose of the first lens (1) is：
First, coordinate reducing a part of aberration with the sphere (S1) of the second lens unit；
Second, coordinating with the second prism 100 (2), adjusted by the focal length of the first lens (1) by the second prism 100
(2) whole focal length of the optical lens system constituted with the first lens (1), and then increase the angle of visual field of AR display devices.
According to being actually needed, the first prism (2) and the first lens (1) select high index of refraction, abbe number material high, the two
Cooperation can partly reduce aberration, for example, the sphere of the second lens unit of the first prism (2) be convex surface (along light transmission direction
It is concave surface), the first lens (1) are convex surface, the convex surface of the second lens unit and the first lens near the face shape of the second lens unit
(1) convex surface coordinates, and can reduce a part of aberration.In preferred embodiment, the first lens (1) are positive lens, the first lens (1)
It is convex surface near the one side of the second lens unit, convex surface is aspherical；First lens (1) are away from the one side of the second lens unit
Concave surface, concave surface is aspherical or sphere.Because the focal power of the first lens (1) is mainly undertaken by convex surface, so convex curvature is larger,
Caused primary, senior aberration is also larger, and the convex surface need to use non-spherical lens, and concave surface coordinates convex surface selection face type, if
Convex surface can be such that overall aberration is down in the margin of tolerance using aspherical, and concave surface can use sphere, if still larger, Huo Zhewu
Method is down to zone of reasonableness, and concave surface is also required to using aspherical.
To reduce aberration, it is the non-spherical lens for making that the first lens (1) use PMMA, can be added using modes such as injections
Work is made, and spherical aberration, coma, astigmatism can be effectively reduced using non-spherical lens.
In preferred embodiment, the first lens (1) are double non-spherical lenses of PMMA materials, the i.e. convex surface of the first lens (1)
All it is non-spherical lens with concave surface.
To reduce reflected light, increase light transmittance, the light pass surface of the first lens (1), the i.e. convex surface and concave surface of the first lens (1)
The antireflective film in visible-range can be plated.At least one of convex surface and concave surface of first lens (1) are coated with antireflective film, subtract
Anti- film can be trilamellar membrane framework, and outermost layer can be that the magnesium fluoride MgF2 of anti-reflection λ/4 wavelength, intermediate layer are anti-reflection λ/2 wavelength
Zirconium oxide ZrO2, innermost layer against glass substrate be anti-reflection λ/4 wavelength cerium fluoride CeF3, or other ready-made set
The antireflective film counted, wherein λ are visible wavelength, such as λ=550nm can flexibly select λ value according to the use environment of equipment,
To improve the utilization rate of light.Antireflective film can also be other ready-made antireflective films for designing.
To ensure the lightweight of overall volume, while having preferable optical effect, it is desirable to the sphere of the second lens unit
(S1) in the distance between central point and reflecting surface central point, and sphere (S2) the face central point and reflecting surface of the first lens unit
Distance between heart point, more than display screen longer sides width, but crossing conference causes the volume of whole optical lens system to greatly increase.
To make the first prism (2) volume be unlikely to excessive again, the first prism (2) material selection high index of refraction, abbe number material high, such as
From refractive index ndPMMA glass more than 1.7.
In order to the angle of visual field for increasing optical lens system to the greatest extent may be used, it is necessary to increase focal length between the second lens unit and human eye
The small lens of energy, in the utility model embodiment, increase the first lens (1), and light is adjusted for coordinating with double sphere-prisms (2)
The whole focal length of lens combination is learned, in preferred scheme, the first lens (1) coordinated with the first prism (2) are positive lens, and focal length will
It is as small as possible, but focal length is too small that aberration correction can be caused difficult.In the utility model embodiment, the focal length of the first lens (1) is
F ', 17mm ＜ f ' ＜ 30mm.To reduce difficulty of processing and senior aberration, two radius of curvature of sphere of the first prism (2) are not
Preferably too small, the span of the radius of curvature of Spherical Surface S 1 of the second lens unit is：10mm ＜ R ＜ 20mm, the first lens unit
The span of the radius of curvature of Spherical Surface S 2 is：10mm ＜ R ＜ 20mm.
The reduction of the focal length of the reduction and whole optical lens system of aberration so that the angle of visual field of whole AR display devices becomes
Greatly, the angle of visual field of the AR display devices under conventional same volume is 40-50 °, the AR display dresses that the utility model embodiment is provided
The angle of visual field put can reach 60-80 °.
Preferably, the radius of curvature of the sphere (S1) of the sphere (S2) of the first lens unit and the second lens unit is R1,
10mm ＜ R1 ＜ 20mm.
In above-mentioned AR real devices, display screen (4), the first lens unit constitute a virtual image objective lens so that come
From the virtual reality image light of display screen (4) from after the transmission of the first lens unit, cemented surface (S7) is transmitted to and in cemented surface
(S7) reflected on；
Second prism 100 constitutes a true picture objective lens so that the true picture light from real world is from entering light
After face (S4) transmits and amplifies, transmitted on cemented surface (S7)；
Reflector element, the second lens unit and the first lens (1) constitute an actual and virtual hybrid ocular group so that in glue
The virtual reality image light that conjunction face (S7) is reflected is mixed and is superimposed with the true picture light for transmiting, then through
After two lens units, the transmission of the first lens (1) and amplification, putting after a virtual reality image is superimposed with true picture is obtained
Big image.
Embodiment 3
When the sphere of the first lens unit is convex surface, the size of meeting display screen has been limited, it is impossible to excessive, thus
The resolution ratio for improving display screen is sought, while the aberration for producing is also larger, therefore, in order to reduce the volume of display screen, it is necessary in light
Lens are set in system carries out degree chromatic aberration correction higher, and one is set such as between display screen and the first lens is used for school
The lens of positive aberration.Based on this, as shown in figure 3, the utility model embodiment provides a kind of augmented reality AR display devices, bag
Include：First prism (2), the second prism 100 and display screen (4), the first lens (1)；Also include：Second lens (3)；
The particular content of the first prism (2), the second prism 100, display screen (4) and the first lens (1), referring to above-mentioned implementation
Example, is not repeated herein.
For the second lens (3), the second lens (3) between display screen (4) and the first prism (2), the second lens (3)
It is biconcave lens, the second lens (3) are near a concave surface of the first prism (2) and sphere (S2) glue of the first lens unit
Close, wherein, the sphere (S2) of the first lens unit is convex surface.
Certainly, when the second lens (3) are between display screen (4) and double sphere-prisms (2), it is also possible to not with double sphere ribs
Mirror (2) is glued, and the second lens (3) are coaxially disposed with the first lens unit.
In the utility model embodiment, the second lens (3) and double sphere-prisms (2) are combined into double gluing sphere-prisms,
Assembly space can be reduced, be conducive to reducing the volume of VR display devices.
The purpose for increasing by second lens (3) between display screen and the first lens unit is to reduce optical lens system
Aberration, the reduction of the focal length of the reduction and whole optical lens system of aberration so that the angle of visual field of whole AR display devices becomes
Greatly, the angle of visual field of the AR display devices under conventional same volume is 40-50 °, the AR display dresses that the utility model embodiment is provided
The angle of visual field put can reach 60-80 °.
Increase the second lens (3), sphere (S2) phase of the second lens (3) and the first lens unit of the first prism (2)
Coordinate to reduce aberration, first, two concave surfaces of the second lens (3) have the effect of the aberration that cancels each other；Second, the second lens
(3) it is engaged to reduce aberration with the sphere (S2) of the first lens unit of double sphere-prisms (2)；Second lens (3) and first
The glued one side of lens unit is concave surface, and the first lens unit and the glued one side of the second lens (3) are convex surface, by the first lens
After unit and the second lens (3) gluing, the negative aberration of the second lens (3) cancels each other with the positive aberration of the first lens unit,
And then reduce the overall aberration of optical lens system.In order to preferably reduce the overall aberration of optical lens system, the second lens
(3) it is biconcave lens, and the curvature of two concave surfaces is identical.
Second lens (3) are using high index of refraction, low dispersion.In order to obtain the overall compact optical module of structure, the
Two lens (3) and the double gluing sphere-prisms of the first prism (2) composition, i.e. concave surface and first lens unit of the second lens (3)
Convex surface is brought into close contact, and can effectively reduce optical lens system aberration, and both abbe number differences are bigger, more beneficial to aberration school
Just, while both are glued together, more conducively assemble, reduce build-up tolerance.
In preferred embodiment, in order to increase light transmission rate, the bi-concave of the second lens (3) can be coated with antireflective film, anti-reflection
Film can be trilamellar membrane framework, and outermost layer can be that the magnesium fluoride MgF2 of anti-reflection λ/4 wavelength, intermediate layer are anti-reflection λ/2 wavelength
Zirconium oxide ZrO2, what innermost layer abutted glass substrate is the cerium fluoride CeF3, or other ready-made designs of anti-reflection λ/4 wavelength
Good antireflective film, wherein λ is visible wavelength, such as λ=550nm can flexibly select λ value according to the use environment of equipment, with
Improve the utilization rate of light.Antireflective film can also be other ready-made antireflective films for designing.
It is similarly the screen for ensureing have sufficient space to put display screen, and the whole optical lens system of reduction as far as possible
Aberration, the second lens (3) are 10mm ＜ R ＜ 20mm near the span of the radius of curvature of the concave surface (S3) of display screen side.
In above-mentioned AR real devices, display screen (4), the second lens (3), the first lens unit constitute a virtual image thing
Microscope group so that the virtual reality image light from display screen (4) is first transmitted from two concave surfaces of the second lens (3), offsets aberration
Afterwards, transmitted and amplified in the first lens unit, be finally transmitted to cemented surface (S7), and occurred on cemented surface (S7) anti-
Penetrate；
Second prism 100 constitutes a true picture objective lens so that the true picture light from real world is from entering light
After face (S4) transmits and amplifies, transmitted on cemented surface (S7)；
Reflector element, the second lens unit and the first lens (1) constitute an actual and virtual hybrid ocular group so that in glue
The virtual reality image light that conjunction face (S7) is reflected is mixed and is superimposed with the true picture light for transmiting, then through
After two lens units, the transmission of the first lens (1) and amplification, putting after a virtual reality image is superimposed with true picture is obtained
Big image.
Embodiment 4
Based on above-mentioned several embodiments, the second prism 100 can be extended, obtain new AR display devices, below with
It is described in detail as a example by the deformation of embodiment 3.
As shown in figure 4, the utility model embodiment provides a kind of augmented reality AR display devices, including：First prism
(2), the second prism 100, the first lens (1), the second lens (3) and display screen (4).
Wherein, the particular content of the first prism (2), the first lens (1), the second lens (3) and display screen (4) is referring to above-mentioned
Embodiment, is not repeated herein.
Wherein, the second prism 100 is double cemented prisms, and the second prism 100 is by the first sphere-prism (5) and the second sphere rib
Mirror (6) gluing is formed, and the first sphere-prism (5) and the second sphere-prism (6) is glued, the second prism that then gluing is formed again
100 and first prism (2) it is glued, be conducive to the compact conformation of AR display devices, reduce volume, mitigate weight.
Specifically, as shown in figure 4, the first sphere-prism (5) includes the first sphere, the first inclined-plane, and for second
The first surface of sphere-prism (6) laminating；Wherein, the first inclined-plane is glued with the inclined-plane of reflector element, constitutes cemented surface (S7).
Second sphere-prism (6) includes the second sphere, the second inclined-plane, and for being fitted with the first sphere-prism (5)
Second surface；Second sphere is incidence surface (S4).
When first sphere-prism (5) is the second prism 100 with the second sphere-prism (6) gluing, by the first sphere-prism (5)
First surface and the second sphere-prism (6) second surface it is glued, make the optical axis of the first sphere of the first sphere-prism (5),
Optical axis with the second sphere of the second sphere-prism (6) is parallel.
Wherein, in the second sphere-prism (6), reflecting material is coated with the second inclined-plane to form the first reflecting surface (S6), the
In one sphere-prism (5), the first sphere is convex surface, and reflecting material is coated with the first sphere to form the second reflecting surface (S5).Can
Select in scheme, it can also be concave surface that the first sphere is.
In preferred embodiment, incidence surface (S4) is total transmissivity face, and the first reflecting surface (S6) is fully reflecting surface.
Specifically, in the second sphere-prism (6), the second sphere is convex surface, the convex surface is sphere, aspherical or free song
Face；Antireflective film is coated with the convex surface of the second sphere, so that the incidence surface (S4) for being formed is total transmissivity face；It is coated with second inclined-plane complete
Reflectance coating, reflecting material is silvered reflective film or other metal dielectric reflective films, so that the first reflecting surface (S6) for being formed is complete
Reflecting surface so that the true picture light from real world is all passed through from incidence surface (S4), into handstand after the second sphere
Real image, the real image of handstand, into upright real image after the reflection of the first reflecting surface (S6).In alternative, the second sphere is
It can be concave surface.
In preferred embodiment, the second reflecting surface (S5) is fully reflecting surface, and part reflective semitransparent film is coated with the first inclined-plane so that
Cemented surface (S7) is semi-transparent semi-reflecting face.Half-reflection and half-transmission deielectric-coating is zirconium oxide and/or silica.Semi-transflective reflective deielectric-coating it is anti-
It is 1 to penetrate rate and transmitance:1, the light half for will incide the first concave surface is reflected, and half is transmitted.
Specifically, in the first sphere-prism (5), the first sphere is recessed towards the one side on the first inclined-plane (or cemented surface S7)
Face, the first sphere is convex surface, and the convex surface is sphere, aspherical or free form surface, and total reflection film is coated with the convex surface of the first sphere,
So that the second reflecting surface (S5) for being formed is fully reflecting surface；Part reflective semitransparent film is coated with first inclined-plane so that through the first reflecting surface
(S6) the upright real image for being formed afterwards, after being totally reflected through the reflection of cemented surface (S7), the second reflecting surface (S5), forms preliminary amplification
Real image, the preliminary real image for amplifying returns and passes through cemented surface (S7).
In preferred embodiment, the first surface of the first sphere-prism (5) and the second surface of the second sphere-prism (6)
Antireflective film is coated with least one surface, antireflective film can be trilamellar membrane framework, and outermost layer can be the fluorine of anti-reflection λ/4 wavelength
Change the zirconium oxide ZrO2 that magnesium MgF2, intermediate layer are anti-reflection λ/2 wavelength, innermost layer is anti-reflection λ/4 wavelength against glass substrate
Cerium fluoride CeF3, or other ready-made antireflective films for designing, wherein λ are visible wavelength, such as λ=550nm can root
λ value is flexibly selected according to the use environment of equipment, to improve the utilization rate of light.Antireflective film can also be other it is ready-made design subtract
Anti- film.In preferred embodiment, the angle between the optical axis of the first inclined-plane and the first sphere is 45 °；Second inclined-plane and the second sphere
Optical axis between angle be 45 °.
In preferred embodiment, for the first prism (2), the first lens unit and the second lens unit are spherical lens,
The optical axis of the first lens unit is vertical with the optical axis of the second lens unit, the optical axis of the first lens unit and the second lens unit
Optical axis is vertical, cemented surface (S7) optical axis, the optical axis angle at 45 ° of the second lens unit respectively with the first lens unit.
For the first prism (2), the sphere (S2) of the first lens unit is convex surface, the sphere (S2) of the first lens unit
Optical axis intersects with cemented surface (S7) so that virtual reality image light is after the first lens unit into the virtual image amplified, the void of amplification
As after cemented surface (S7) place is reflected, the true picture with the amplification through cemented surface (S7) is superimposed.
For the first prism (2), the sphere (S1) of the second lens unit is convex surface, the sphere (S1) of the second lens unit
Optical axis intersects with cemented surface (S7) so that the virtual reality image and true picture being superimposed, in the second lens unit
The convex surface of sphere (S1) is exaggerated again.
For the first lens (1), the first lens (1) are positive lens, one side of the first lens (1) near the second lens unit
It is convex surface, convex surface is aspherical；First lens (1) are concave surface away from the one side of the second lens unit, and concave surface is aspherical or ball
Face.First lens (1) coordinate with the second lens unit of the first prism (2), reduce a part of aberration；First lens (1) and the
Two prism 100 (2) coordinates, and the second prism 100 (2) and the first lens (1) are reduced by reducing the focal length of the first lens (1)
Whole focal length, and then be conducive to increase AR display devices the angle of visual field.
For the second lens (3), the second lens (3) between display screen (4) and the first prism (2), wherein, second is saturating
Mirror (3) is biconcave lens, and the second lens (3) are near a concave surface of the first prism (2) and the sphere of the first lens unit
(S2) it is glued.Second lens (3) are using high index of refraction, low dispersion.In order to obtain the overall compact optical module of structure, the
The concave surface of two lens (3) is brought into close contact with the convex surface of the first lens unit, can effectively reduce optical lens system aberration, both
Abbe number difference it is bigger, more beneficial to chromatic aberration correction, while both are glued together, more conducively assemble, reduce build-up tolerance.
To ensure visual angle, by the first lens (1), the optical lens system of the first prism (2) and the second lens (3) combination
Whole focal length should be as small as possible, but it is too small aberration can be caused excessive, and weak vibrations may cause that larger change occurs as matter
Change, the optical lens combined by the first lens (1), the first prism (2) and the second lens (3) that the utility model embodiment is provided
The focal range of system is：15mm ＜ f ＜ 25mm.By the first sphere-prism (5), the second sphere-prism (6), the second lens list
Unit, the optical lens system of the first lens (1) composition should be telecentric optical system, and infinite point is imaged, and focal length is crossed conference and led
Cause visual angle it is too small, focal length is too small to cause the aberrations such as distortion, aberration excessive, therefore experiment proves that, by the first sphere-prism (5),
Second sphere-prism (6), the second lens unit, the suitable model of the whole focal length of the optical lens system of the first lens (1) composition
Enclose for：20mm ＜ f ' ＜ 30mm.By the first prism (2), the second prism 100, the first lens (1), the second lens (3) and display screen
(4) volume of the AR real devices for constituting is 16mm*28mm*15mm or so.
The light path schematic diagram of above-mentioned AR real devices referring to Fig. 9, wherein, display screen (4), the second lens (3), the first lens
Unit constitutes a virtual image objective lens so that the virtual reality image light from display screen (4) is first from the second lens (3)
Two concave surface transmissions, offset after aberration, are transmitted and are amplified in the first lens unit, are finally transmitted to cemented surface (S7),
And reflected on cemented surface (S7)；
First sphere-prism (5) and the second sphere-prism (6) constitute true picture objective lens so that from real world
True picture light from after incidence surface (S4) transmission, first after through the reflection of the first reflecting surface (S6), the reflection of cemented surface (S7), the
After the reflection of two reflectings surface (S5), return and through cemented surface (S7)；
Reflector element, the second lens unit and the first lens (1) constitute actual and virtual hybrid ocular group so that in cemented surface
(S7) the virtual reality image light for reflecting and the true picture light mixing being transmitted on cemented surface (S7) and it is superimposed, and through the
The transmission of two lens units and the first lens (1) and after amplifying, obtains after a virtual reality image is superimposed with true picture
Enlarged drawing.
Embodiment 5
Based on above-described embodiment, the utility model embodiment also provides a kind of AR display devices as shown in Figure 5, including：
First prism (2), display screen (4), the first sphere-prism (5) and the second sphere-prism (6).
Wherein, the particular content of the first prism (2), display screen (4), the first sphere-prism (5) and the second sphere-prism (6)
Referring to previous embodiment, it is not repeated herein.
The image light sent from display screen (4) is virtual reality image light, from the incidence surface (S4) of the second sphere-prism (6)
Transmit into light for true environment true picture light, two spheres and the optical axis edge of incidence surface (S4) because of the first prism (2)
Different directions all intersect with cemented surface (S7), cemented surface (S7) realize virtual reality image light and true picture light mixing and
Superposition.
For the first prism (2), two spheres and an inclined-plane with transmission, reflex are integrated in a device
In, a sphere and one are had transmission by the second prism simultaneously, the inclined-plane of reflex is integrated in a device, with
Lower effect：First, cemented surface (S7) is acted on turn light rays, the steering for transmiting the light into the first prism (2) is realized, kept away
Exempt from optical lens system one direction length long, made the volume of optical lens system smaller, it is lighter；Second, from the second rib
The true picture light that mirror is transmitted to cemented surface (S7) can mix and be superimposed, energy with the reflected light reflected in cemented surface (S7)
To enough be merged into the virtual reality image and true picture of the first prism (2)；Third, by the first lens unit, second
Lens unit and reflector element are integrated in the first prism (2), and by the first prism (2) and the second prism cementing, can be subtracted
The assembly space of few lens numbers and saving lens, realizes the volume miniaturization of whole optical lens system.
In above-mentioned AR real devices, display screen (4), the first lens unit constitute a virtual image objective lens so that come
Virtual reality image light from display screen (4) is transmitted to cemented surface (S7) after the first lens unit is transmitted and amplified, and
Reflected on cemented surface (S7)；
First sphere-prism (5) and the second sphere-prism (6) constitute true picture objective lens so that from real world
True picture light from after incidence surface (S4) transmission, first after through the reflection of the first reflecting surface (S6), reflection, second of cemented surface (S7)
After the reflection of reflecting surface (S5), return and through cemented surface (S7)；
Reflector element, the second lens unit constitute actual and virtual hybrid ocular group so that reflected in cemented surface (S7)
Virtual reality image light and the true picture light mixing being transmitted on cemented surface (S7) and be superimposed, and through the second lens unit
Transmission and after amplifying, into human eye is enlarged drawing after virtual reality image is superimposed with true picture.
Embodiment 6
Based on above-described embodiment, the utility model embodiment also provides a kind of AR display devices as shown in Figure 6, including：
First lens (1), the first prism (2), display screen (4), the first sphere-prism (5) and the second sphere-prism (6).
Wherein, the first lens (1), the first prism (2), display screen (4), the first sphere-prism (5) and the second sphere-prism
(6) particular content is not repeated herein referring to previous embodiment.
The image light sent from display screen (4) is virtual reality image light, from the incidence surface (S4) of the second sphere-prism (6)
Transmit into light for true environment true picture light, two spheres and the optical axis edge of incidence surface (S4) because of the first prism (2)
Different directions all intersect with cemented surface (S7), cemented surface (S7) realize virtual reality image light and true picture light mixing and
Superposition.
For the first prism (2), two spheres and an inclined-plane with transmission, reflex are integrated in a device
In, a sphere and one are had transmission by the second prism simultaneously, the inclined-plane of reflex is integrated in a device, with
Lower effect：First, cemented surface (S7) is acted on turn light rays, the steering for transmiting the light into the first prism (2) is realized, kept away
Exempt from optical lens system one direction length long, made the volume of optical lens system smaller, it is lighter；Second, from the second rib
The true picture light that mirror is transmitted to cemented surface (S7) can mix and be superimposed, energy with the reflected light reflected in cemented surface (S7)
To enough be merged into the virtual reality image and true picture of the first prism (2)；Third, by the first lens unit, second
Lens unit and reflector element are integrated in the first prism (2), and by the first prism (2) and the second prism cementing, can be subtracted
The assembly space of few lens numbers and saving lens, realizes the volume miniaturization of whole optical lens system.
For the first lens (1), the first lens (1) are positive lens, one side of the first lens (1) near the second lens unit
It is convex surface, convex surface is aspherical；First lens (1) are concave surface away from the one side of the second lens unit, and concave surface is aspherical or ball
Face.First lens (1) coordinate with the second lens unit of the first prism (2), reduce a part of aberration；First lens (1) and the
Two prism 100 (2) coordinates, and the second prism 100 (2) and the first lens (1) are reduced by reducing the focal length of the first lens (1)
Whole focal length, and then be conducive to increase AR display devices the angle of visual field.
The light path schematic diagram of above-mentioned AR real devices referring to Fig. 8, wherein, display screen (4), the second lens (3), the first lens
Unit constitutes a virtual image objective lens so that the virtual reality image light from display screen (4) is first from the second lens (3)
Two concave surface transmissions, offset after aberration, are transmitted and are amplified in the first lens unit, are finally transmitted to cemented surface (S7),
And reflected on cemented surface (S7)；
First sphere-prism (5) and the second sphere-prism (6) constitute true picture objective lens so that from real world
True picture light from after incidence surface (S4) transmission, first after through the reflection of the first reflecting surface (S6), reflection, second of cemented surface (S7)
After the reflection of reflecting surface (S5), return and through cemented surface (S7)；
Reflector element, the second lens unit and the first lens (1) constitute actual and virtual hybrid ocular group so that in cemented surface
(S7) the virtual reality image light for reflecting and the true picture light mixing being transmitted on cemented surface (S7) and it is superimposed, and through the
After the transmission and amplification of two lens units and the first lens (1), into human eye is that virtual reality image is superimposed with true picture
Enlarged drawing afterwards.
Embodiment 7
Based on above-described embodiment, the utility model embodiment also provides a kind of AR display devices as shown in Figure 7, including：
First prism (2), the second lens (3), display screen (4), the first sphere-prism (5) and the second sphere-prism (6).
Wherein, the first prism (2), the second lens (3), display screen (4), the first sphere-prism (5) and the second sphere-prism
(6) particular content is not repeated herein referring to previous embodiment.
The image light sent from display screen (4) is virtual reality image light, from the incidence surface (S4) of the second sphere-prism (6)
Transmit into light for true environment true picture light, two spheres and the optical axis edge of incidence surface (S4) because of the first prism (2)
Different directions all intersect with cemented surface (S7), cemented surface (S7) realize virtual reality image light and true picture light mixing and
Superposition.
For the first prism (2), two spheres and an inclined-plane with transmission, reflex are integrated in a device
In, a sphere and one are had transmission by the second prism simultaneously, the inclined-plane of reflex is integrated in a device, with
Lower effect：First, cemented surface (S7) is acted on turn light rays, the steering for transmiting the light into the first prism (2) is realized, kept away
Exempt from optical lens system one direction length long, made the volume of optical lens system smaller, it is lighter；Second, from the second rib
The true picture light that mirror is transmitted to cemented surface (S7) can mix and be superimposed, energy with the reflected light reflected in cemented surface (S7)
To enough be merged into the virtual reality image and true picture of the first prism (2)；Third, by the first lens unit, second
Lens unit and reflector element are integrated in the first prism (2), and by the first prism (2) and the second prism cementing, can be subtracted
The assembly space of few lens numbers and saving lens, realizes the volume miniaturization of whole optical lens system.
For the second lens (3), the second lens (3) between display screen (4) and the first prism (2), wherein, second is saturating
Mirror (3) is biconcave lens, and the second lens (3) are near a concave surface of the first prism (2) and the sphere of the first lens unit
(S2) it is glued.Second lens (3) are using high index of refraction, low dispersion.In order to obtain the overall compact optical module of structure, the
The concave surface of two lens (3) is brought into close contact with the convex surface of the first lens unit, can effectively reduce optical lens system aberration, both
Abbe number difference it is bigger, more beneficial to chromatic aberration correction, while both are glued together, more conducively assemble, reduce build-up tolerance.
In above-mentioned AR real devices, display screen (4), the second lens (3), the first lens unit constitute a virtual image thing
Microscope group so that the virtual reality image light from display screen (4) is first transmitted from two concave surfaces of the second lens (3), offsets aberration
Afterwards, transmitted and amplified in the first lens unit, be finally transmitted to cemented surface (S7), and occur on cemented surface (S7)
Reflection；
First sphere-prism (5) and the second sphere-prism (6) constitute true picture objective lens so that from real world
True picture light from after incidence surface (S4) transmission, first after through the reflection of the first reflecting surface (S6), reflection, second of cemented surface (S7)
After the reflection of reflecting surface (S5), return and through cemented surface (S7)；
Reflector element, the second lens unit constitute actual and virtual hybrid ocular group so that reflected in cemented surface (S7)
Virtual reality image light and the true picture light mixing being transmitted on cemented surface (S7) and be superimposed, and through the second lens unit
After transmission and amplification, the enlarged drawing after a virtual reality image is superimposed with true picture is obtained.
To sum up, the AR display devices of the utility model embodiment have and eliminate image aberration, miniaturization, the big angle of visual field and subtract
The characteristics of small pattern distortion, AR display devices be presented to wear the image of user not only the image including true environment again including virtually
Real world images, and because aberration reduces, the selection of the whole focal length of optical lens system so that the quality of mixed image is carried
Rise, the feeling of immersion using the user of AR display devices can be strengthened.
To the less demanding situation of aberration, in order to further reduce technology difficulty, and by the volume of optical lens system
Further reduce, can remove the second lens (3), by the first prism (2), the second prism 100 and the first lens (1) constitute one
Optical lens system.According to being actually needed, the first prism (2) and the first lens (1) select high index of refraction, abbe number material high
Material, the two cooperation can partly reduce aberration.Specifically, the second lens unit of the first prism (2) is near the convex of the first lens (1)
Face, coordinates with the first lens (1) near the concave surface of the second lens unit, can reduce a part of aberration.
The visual angle of current AR equipment is universal smaller, and majority greatly have impact on visual effect at 20-30 ° or so, and with it is existing
The interactive experience in the real world, the utility model embodiment for adapt to the small-sized lightness of AR equipment, there is provided AR display devices have
Compact conformation, the high-quality optical lens system of imaging, visual angle can reach 30-50 °, and human eye can clearly differentiate the external world
Visual angle is about 60 ° or so, and this programme can almost cover the region, the AR display devices tool that the utility model embodiment is provided
There is simple structure, technique manufacture difficulty is low, it is easy to the characteristics of volume production.
Based on above-described embodiment, the utility model embodiment provides a kind of wear-type AR display devices, including above-mentioned implementation
Any AR display devices in example so that the wear-type AR display devices of the utility model embodiment have small size, aberration school
Just and the characteristics of big visual angle, the visual angle of the present embodiment wear-type AR display devices can reach 30-50 °, and human eye can be clear
The clear visual angle for differentiating the external world is about 60 ° or so, and the present embodiment can almost cover the region.The utility model embodiment is provided
AR display devices also there is simple structure, technique manufacture difficulty is low, it is easy to the characteristics of volume production.
Although having been described for preferred embodiment of the present utility model, those skilled in the art once know substantially
Creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to bag
Include preferred embodiment and fall into having altered and changing for the utility model scope.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to the utility model
New spirit and scope.So, if it is of the present utility model these modification and modification belong to the utility model claim and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising these changes and modification.
Claims (14)
1. a kind of augmented reality AR display devices, it is characterised in that including：First prism (2), the second prism and display screen (4)；
First prism (2) includes the first lens unit, the second lens unit and reflector element；First lens unit is leaned on
The nearly display screen (4), first lens unit is coaxially disposed with the display screen (4), the light of first lens unit
Axle intersects with the optical axis of second lens unit；Wherein, first prism (2) is double sphere-prisms, first lens
Unit and second lens unit are spherical lens；The reflector element is located at first lens unit and described second
Between lens unit, the reflector element includes an inclined-plane；
Second prism is sphere-prism, and second prism includes an incidence surface (S4) and an inclined-plane, the inclined-plane
Glued with the inclined-plane of the reflector element to form a cemented surface (S7), the incidence surface (S4) is sphere, the incidence surface (S4)
Optical axis it is parallel with the optical axis of second lens unit；
Wherein, the inclined-plane of the reflector element is coated with while having with the surface at least one of the inclined-plane of second prism
Transmission and the material of reflection function so that the transmissivity of the cemented surface (S7) imposes a condition with reflectivity satisfaction.
2. AR display devices as claimed in claim 1, it is characterised in that second prism is double cemented prisms；Described
Two prisms are formed by the first sphere-prism (5) and the second sphere-prism (6) gluing；
First sphere-prism (5) includes the first sphere, the first inclined-plane, and for being pasted with second sphere-prism (6)
The first surface of conjunction；Wherein, first inclined-plane is glued with the inclined-plane of the reflector element, constitutes the cemented surface (S7)；
Second sphere-prism (6) includes the second sphere, the second inclined-plane, and for being pasted with first sphere-prism (5)
The second surface of conjunction；Second sphere is the incidence surface (S4)；
The first surface and the second surface are glued, the optical axis of first sphere is put down with the optical axis of second sphere
OK；
Wherein, it is coated with reflecting material on second inclined-plane to form the first reflecting surface (S6), is coated with first sphere anti-
Material is penetrated to form the second reflecting surface (S5).
3. AR display devices as claimed in claim 1, it is characterised in that also including the first lens (1), first lens
(1) near second lens unit, and it is coaxially disposed with second lens unit.
4. AR display devices as claimed in claim 3, it is characterised in that also including the second lens (3)；
Between the display screen (4) and first prism (2), second lens (3) are double to second lens (3)
Concave lens, second lens (3) are close to a concave surface of first prism (2) and the sphere of first lens unit
(S2) it is glued, wherein, the sphere (S2) of first lens unit is convex surface.
5. AR display devices as any one of Claims 1-4, it is characterised in that the light of first lens unit
Axle is vertical with the optical axis of second lens unit, the cemented surface (S7) optical axis, institute respectively with first lens unit
State the optical axis angle at 45 ° of the second lens unit.
6. AR display devices as claimed in claim 2, it is characterised in that the optical axis of first inclined-plane and first sphere
Between angle be 45 °；Angle between the optical axis of second inclined-plane and second sphere is 45 °.
7. AR display devices as claimed in claim 2, it is characterised in that second sphere is convex surface, second sphere
On be coated with antireflective film, the incidence surface (S4) of formation is total transmissivity face.
8. AR display devices as claimed in claim 2, it is characterised in that be coated with total reflection film on second inclined-plane, form
First reflecting surface (S6) be fully reflecting surface.
9. AR display devices as claimed in claim 2, it is characterised in that first sphere is convex surface, first sphere
On be coated with total reflection film, second reflecting surface (S5) of formation is fully reflecting surface.
10. AR display devices as claimed in claim 2, it is characterised in that in the first surface and the second surface
At least one surface is coated with antireflective film.
11. AR display devices as claimed in claim 1, it is characterised in that the cemented surface (S7) is semi-transparent semi-reflecting face.
12. AR display devices as claimed in claim 3, it is characterised in that first lens (1) are positive lens, described
One lens (1) are convex surface near the one side of second lens unit, and the convex surface is aspherical；First lens (1) are remote
It is concave surface from the one side of second lens unit, the concave surface is aspherical or sphere.
13. AR display devices as claimed in claim 1, it is characterised in that first prism (2) is the first lens list
The integrative-structure that first, described second lens unit and the reflector element are combined into；Or,
First prism (2) is first lens unit, second lens unit is glued with the reflector element respectively
Double sphere cemented prisms.
14. a kind of wear-type augmented reality AR display devices, it is characterised in that including such as any one of claim 1 to 13 institute
The AR display devices stated.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249415A (en) * | 2016-08-31 | 2016-12-21 | 深圳超多维科技有限公司 | A kind of AR display device and wear-type AR display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249415A (en) * | 2016-08-31 | 2016-12-21 | 深圳超多维科技有限公司 | A kind of AR display device and wear-type AR display device |
| CN106249415B (en) * | 2016-08-31 | 2019-03-26 | 深圳超多维科技有限公司 | A kind of AR display device and wear-type AR show equipment |
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