CN209311805U - A kind of augmented reality optics module and augmented reality device - Google Patents
A kind of augmented reality optics module and augmented reality device Download PDFInfo
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- CN209311805U CN209311805U CN201920290958.7U CN201920290958U CN209311805U CN 209311805 U CN209311805 U CN 209311805U CN 201920290958 U CN201920290958 U CN 201920290958U CN 209311805 U CN209311805 U CN 209311805U
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Abstract
The utility model discloses a kind of augmented reality optics module and augmented reality devices, are related to augmented reality field.Augmented reality optics module includes convex lens and balsaming lens, and convex lens and balsaming lens are set gradually along the image source light direction of the launch, the focal length f of convex lens1With the focal length f of balsaming lens2Meet: 10mm < f1< 50mm, 30mm < f2< 200mm.Augmented reality device includes above-mentioned augmented reality optics module, image source and the optical processing unit that augmented reality optics module light emission side is arranged in, and optical processing unit is used to the light that augmented reality optics module is emitted being injected into human viewable's range.It is able to ascend the resolution ratio of augmented reality device, and then promotes augmented reality device and shows quality.
Description
Technical field
The utility model relates to augmented reality fields, in particular to a kind of augmented reality optics module and increasing
Strong real device.
Background technique
Augmented reality (English name: Augmented Reality, AR) is a kind of calculating camera image in real time
Position and angle and the technology for adding respective image, true environment and virtual object have been added to the same picture in real time
Face or space exist simultaneously.It is a kind of by " seamless " the integrated new technology of real world information and virtual world information, is handle
Originally it is difficult the entity information (visual information, sound, tactile etc.) experienced in the certain time spatial dimension of real world,
It by science and technology such as computers, is superimposed again after analog simulation, virtual Information application to real world is felt by human sensory
Know, to reach the sensory experience of exceeding reality.For AR as novel man-machine interface and emulation tool, the concern being subject to is increasingly wide
It is general, and important function has been played, show huge potentiality.
In the prior art, augmented reality device imaging effect is poor, and resolution ratio is relatively low, distorts larger, and it is clear not to be able to satisfy
The viewing demand of picture.Defective tightness is merged with virtual environment in addition, also resulting in real world, influences user's viewing experience.
Utility model content
The purpose of this utility model is to provide a kind of augmented reality optics module and augmented reality devices, are able to ascend increasing
The resolution ratio of strong real device, and then promote augmented reality device and show quality.
The embodiments of the present invention are achieved in that
The one side of the utility model embodiment, provides a kind of augmented reality optics module, including convex lens and gluing it is saturating
Mirror, the convex lens and the balsaming lens are set gradually along the image source light direction of the launch, the focal length f of the convex lens1With institute
State the focal length f of balsaming lens2Meet:
10mm < f1< 50mm, 30mm < f2< 200mm.
Optionally, the convex lens is plano-convex lens, and the balsaming lens includes positive and negative lenses, the positive lens
It is positioned close to described image source side, the positive lens and the negative lens meet following relationship:
2.0 > n1-11.8,17 < v of >1-1< 30；1.9 > n1-21.7,65 > v of >1-2> 40；1.9 > n1-3> 1.7,65
> v1-3> 40；Wherein, n1-1And v1-1The refractive index and Abbe number of the respectively described negative lens, n1-2And v1-2Respectively it is described just
The refractive index and Abbe number of lens, n1-3And v1-3The refractive index and Abbe number of the respectively described convex lens.
Optionally, the convex lens is plano-convex lens, and the balsaming lens includes positive and negative lenses, the negative lens
It is positioned close to described image source side, the positive lens and the negative lens meet following relationship:
2.0 > n2-11.8,17 < v of >2-1< 30；1.7 > n2-21.5,75 > v of >2-2> 60；2.0 > n2-3> 1.8,65
> v2-3> 40；Wherein, n2-1And v2-1The refractive index and Abbe number of the respectively described negative lens, n1-2And v1-2Respectively it is described just
The refractive index and Abbe number of lens, n2-3And v2-3The refractive index and Abbe number of the respectively described convex lens.
Optionally, the face type of the convex lens, the positive lens and the negative lens include spherical surface, it is aspherical and freely bent
Any one of face.
The another aspect of the utility model embodiment provides a kind of augmented reality device, including described in above-mentioned any one
Augmented reality optics module, image source and the optical processing unit that the augmented reality optics module light emission side is set,
The optical processing unit is used to the light that the augmented reality optics module is emitted being injected into human viewable's range.
Optionally, the optical processing unit includes transparent substrate and concave mirror, the transparent substrate and described recessed
Semi-transparent semi-reflecting film is coated on the reflecting mirror of face respectively, the angle where the transparent substrate between plane and balsaming lens primary optical axis is
Acute angle, the concave mirror are set to the side of the reflection light of the transparent substrate.
Optionally, the optical processing unit includes transparent substrate and concave mirror, and half is coated on the transparent substrate
Saturating half anti-film is coated with total reflection film on the concave mirror, plane where the transparent substrate and balsaming lens primary optical axis it
Between angle be acute angle, the concave mirror is set to the side of the transmitted ray of the transparent substrate.
Optionally, the optical processing unit includes transparent substrate and concave mirror, is coated on the transparent substrate partially
Shake spectro-film, and semi-transparent semi-reflecting film is coated on the concave mirror, plane and balsaming lens primary optical axis where the transparent substrate
Between angle be acute angle, the concave mirror is set to the side of the reflection light of the transparent substrate, described transparent
Quarter-wave plate is provided between substrate and the concave mirror.
Optionally, the optical processing unit includes transparent substrate and concave mirror, is coated on the transparent substrate partially
Shake spectro-film, and total reflection film is coated on the concave mirror, plane where the transparent substrate and balsaming lens primary optical axis it
Between angle be acute angle, the concave mirror is set to the side of the transmitted ray of the transparent substrate, in the transparent base
Quarter-wave plate is provided between plate and the concave mirror.
Optionally, the curvature absolute value of the concave mirror | R | range meet: 15mm < | R | < 100mm.
The beneficial effect of the utility model embodiment includes:
Augmented reality optics module provided by the embodiment of the utility model, by being set gradually along the image source light direction of the launch
Convex lens and balsaming lens, so that light is moved towards ratio smoothly, no mutation can effectively correct the curvature of field, be promoted to light
Cohesion, reduce divergence of beam caused by astigmatism the problems such as, also can compensate for light communication process generation distortion, and then promoted
The resolution ratio of augmented reality device promotes user experience.In addition, balsaming lens can reduce color difference and spherical aberration to the maximum extent,
Promote the display quality of picture.
Augmented reality device provided by the embodiment of the utility model, by the way that augmented reality optics module light emission side is arranged in
The light of augmented reality optical exit is injected into human viewable's range by optical processing unit.Pass through image source, augmented reality light
The combination for learning mould group and optical processing unit, keeps overall structure more compact, also that the optical information of image source is perfect
It projects into human eye, in conjunction with extraneous real scene, visual information abundant is pooled after superimposed, enhances user experience.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is one of the structural schematic diagram of augmented reality device provided by the embodiment of the utility model；
Fig. 2 is the modulation transfer function curve graph of augmented reality optics module provided by the embodiment of the utility model；
Fig. 3 is the second structural representation of augmented reality device provided by the embodiment of the utility model；
Fig. 4 is the distortion figure of augmented reality device provided by the embodiment of the utility model imaging；
Fig. 5 is the third structural representation of augmented reality device provided by the embodiment of the utility model；
Fig. 6 is the four of the structural schematic diagram of augmented reality device provided by the embodiment of the utility model；
Fig. 7 is the five of the structural schematic diagram of augmented reality device provided by the embodiment of the utility model.
Icon: 100- augmented reality optics module；105- image source；110- convex lens；120- balsaming lens；122a,
122b- positive lens；124a, 124b- negative lens；200- augmented reality device；210- optical processing unit；212- transparent substrate；
214- concave mirror；216- quarter-wave plate；220- human eye.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings or this is practical new
Type product using when the orientation or positional relationship usually put, be merely for convenience of describing the present invention and simplifying the description, and
It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore
It should not be understood as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
Fig. 1 is please referred to, the present embodiment provides a kind of augmented reality optics modules 100, including convex lens 110 and balsaming lens
120, convex lens 110 and balsaming lens 120 are set gradually along 105 light emitting direction of image source, the focal length f of convex lens 1101With glue
Close the focal length f of lens 1202Meet:
10mm < f1< 50mm, 30mm < f2< 200mm (1)
It should be noted that first, the light that image source 105 issues passes through convex lens 110, using balsaming lens 120
After be emitted, wherein the light that image source 105 issues can be the unbiased polarization state of being also possible to of linear polarization, the utility model
This is not construed as limiting, as long as can export to form image.The augmented reality optics module 100 to the applicability of light compared with
By force, wider to the versatility of equipment, equal work convenient for assembly.In addition, the material of convex lens 110 and balsaming lens 120 can be used
The preferable material of the translucency such as glass or resin, to promote the utilization rate of light.
Second, the balsaming lens 120 of the utility model embodiment is sticked together by positive and negative two panels lens to be formed, in this way
One, the negative color difference that single positive lens generates and the positive color difference that single negative lens generates can be compensated, balsaming lens is passed through
120 it is Chromatically compensated the effects of, and then reduce color difference or eliminate color difference.Meanwhile simple lens is unable to spherical aberration corrector, using glued saturating
Mirror 120 can effective spherical aberration corrector.It is used cooperatively by convex lens 110 and balsaming lens 120, can be enhanced what picture was shown
Resolution ratio, as shown in Fig. 2, Fig. 2 be the augmented reality optics module 100 measured modulation transfer function (English name:
Modulation Transfer Function, MTF) curve graph, from diagram as can be seen that at 62lp/mm, the number of MTF
Value is 0.5 or more, therefore is able to ascend display by the augmented reality optics module 100 combined with balsaming lens 120 of convex lens 110
Resolution ratio.
Third, in the focal length f of convex lens 1101When different values are set, the focal length f of balsaming lens 1202It changes correspondingly, with
It is emitted light with optimum state.It is exemplary, as the focal length f of convex lens 1101When being set as 15mm, the focal length of balsaming lens 120
f2For 150mm；As the focal length f of convex lens 1101When being set as 20mm, the focal length f of balsaming lens 1202For 90mm；Work as convex lens
110 focal length f1When being set as 25mm, the focal length f of balsaming lens 1202For 70mm；As the focal length f of convex lens 1101It is set as
When 30mm, the focal length f of balsaming lens 1202For 60mm；As the focal length f of convex lens 1101When being set as 40mm, balsaming lens 120
Focal length f2For 50mm.
Augmented reality optics module 100 provided by the embodiment of the utility model, by along 105 light emitting direction of image source according to
The convex lens 110 and balsaming lens 120 of secondary setting, make light move towards ratio smoothly, and no mutation can effectively correct the curvature of field,
The problems such as promoting the cohesion to light, reducing astigmatism caused by divergence of beam also can compensate for the generation of light communication process
Distortion, and then the resolution ratio of augmented reality device is promoted, promote user experience.In addition, balsaming lens 120 can be to the maximum extent
Color difference and spherical aberration are reduced, the display quality of picture is promoted.
Balsaming lens 120 can be set to different combining forms, exemplary, can use three balsaming lens, can also be with
Using cemented doublet, the present embodiment is not specifically limited in this embodiment.In the present embodiment, the structure type ginseng of balsaming lens 120
According to shown in Fig. 1 and Fig. 3.
A kind of structure type of balsaming lens 120, as shown in Figure 1, convex lens 110 is plano-convex lens, balsaming lens 120 is wrapped
Positive lens 122a and negative lens 124a are included, positive lens 122a is positioned close to 105 side of image source, positive lens 122a and negative lens
124a meets following relationship:
2.0 > n1-11.8,17 < v of >1-1< 30 (2)
1.9 > n1-21.7,65 > v of >1-2> 40 (3)
1.9 > n1-31.7,65 > v of >1-3> 40 (4)
Wherein, n1-1And v1-1The respectively refractive index and Abbe number of negative lens 124a, n1-2And v1-2Respectively positive lens
The refractive index and Abbe number of 122a, n1-3And v1-3The respectively refractive index and Abbe number of convex lens 110.
Since single positive lens can generate negative color difference, single negative lens can generate positive color difference, when the timing of focal power one,
Abbe number is bigger, and the color difference that lens generate is smaller.And the Abbe number of lens is bigger, refractive index is smaller, and the spherical aberration that lens generate is just
Bigger (i.e. Abbe number is smaller, when refractive index is higher, can effectively reduce spherical aberration), still, with increasing for refractive index, chromatic dispersion problem
Just more utility model is aobvious.To sum up, when spherical aberration is smaller, lens generate color difference it is bigger, chromatic dispersion problem also than more prominent, in order to
Relationship between balanced spherical aberration and dispersion, color difference, in the present embodiment, positive lens 122a, negative lens 124a and convex lens 110
Relationship between refractive index and Abbe number meets relational expression (2), relational expression (3) and relational expression (4), to reach best display effect
Fruit.
Convex lens 110 is set as plano-convex lens, and the plane of plano-convex lens can be bonded with image source 105, not only make to tie
Structure is more compact, also makes installation process more convenient, the stability of lift structure.
Another structure type of balsaming lens 120, as shown in figure 3, convex lens 110 is plano-convex lens, balsaming lens 120
Including positive lens 122b and negative lens 124b, negative lens 124b is positioned close to 105 side of image source, positive lens 122b and negative saturating
Mirror 124b meets following relationship:
2.0 > n2-11.8,17 < v of >2-1< 30 (5)
1.7 > n2-21.5,75 > v of >2-2> 60 (6)
2.0 > n2-31.8,65 > v of >2-3> 40 (7)
Similarly, for the relationship between balanced spherical aberration, dispersion and color difference, reach best display effect, in the present embodiment
In, the relationship between positive lens 122b, negative lens 124b and the refractive index and Abbe number of convex lens 110 meets relational expression (5), closes
It is formula (6) and relational expression (7).
Optionally, the face type of convex lens 110, positive lens 122a (122b) and negative lens 124a (124b) include spherical surface, it is non-
Any one of spherical surface and free form surface.It can be according to planform flexible setting convex lens 110, the positive lens of augmented reality device
In the case that the face type of 122a (122b) and negative lens 124a (124b), the resolution ratio needed for meeting and light transmit, according to convex
Suitable face type is arranged in space length between lens 110 and balsaming lens 120.
The another aspect of the utility model embodiment, as shown in Figure 1, providing a kind of augmented reality device 200, including above-mentioned
Any one augmented reality optics module 100, image source 105 and the light that 100 light emission side of augmented reality optics module is set
Processing unit 210 is learned, optical processing unit 210 is used to the light that augmented reality optics module 100 is emitted being injected into human eye 220
Visual range.
It should be noted that first, augmented reality is superimposed according to the image of real scene and the image of virtual scene
The picture of generation, wherein the light in true environment can enter human eye by the optical processing unit 210 in 220 front of human eye
220.At this point, the light that image source 105 is emitted enters human eye 220 also by optical processing unit 210, true environment and figure are utilized
The virtual scene that image source 105 generates is superimposed to form AR effect.
Second, image source 105 can be Organic Light Emitting Diode (English name: Organic Light-Emitting
Diode, OLED), liquid crystal on silicon (English name: Liquid Crystal on Silicon, LCOS) or liquid crystal display (English
Literary fame claims: Liquid Crystal Display, LCD), or may be that other can be realized the optical display of display
Part, the present embodiment are not particularly limited this.
Third, referring to figure 4., Fig. 4 are the distortion figure that the augmented reality device 200 measured is imaged, as can be seen from Figure,
Image deformation belongs to small distortion system within 1%, is conducive to promote picture quality, keeps picture more life-like.
Augmented reality device 200 provided by the embodiment of the utility model is gone out by being arranged in augmented reality optics module 100
The light that augmented reality optics module 100 is emitted is injected into 220 visual range of human eye by the optical processing unit 210 of light side.It adopts
There is big eye movement range (12mm × 8mm) with augmented reality device 200 provided in this embodiment, eye can be more when seeing picture
Add comfortable.By the combination of image source 105, augmented reality optics module 100 and optical processing unit 210, make whole knot
Structure is more compact, and the optical information of image source 105 is perfectly projected into human eye 220, in conjunction with extraneous real scene, through folded
Visual information abundant is pooled after adding, and enhances user experience.
According to the difference of 210 structure type of optical processing unit, augmented reality device 200 can have various structures shape
Formula, exemplary, optical processing unit 210 can be with reflected light or transmitted light according to benefit come in the not ipsilateral setting of transparent substrate 212
Concave mirror 214.Likewise, different combining forms can also be used in balsaming lens 120, specific constructive form is hereafter had
Body description.
As shown in figures 1 and 3, optical processing unit 210 includes transparent substrate 212 and concave mirror 214, transparent substrate
212 and concave mirror 214 on be coated with semi-transparent semi-reflecting film respectively, 212 place plane of transparent substrate and 120 primary optical axis of balsaming lens
Between angle be acute angle, concave mirror 214 is set to the side of the reflection light of transparent substrate 212.
It should be noted that the translucency such as glass or resin can be used in the material of transparent substrate 212 and concave mirror 214
Preferable material can promote the utilization rate of light.In addition, the semi-transparent semi-reflecting film transmitance plated on transparent substrate 212 is 10%
To 90%, reflectivity is 90% to 10%.It is exemplary, when semi-transparent semi-reflecting film transmitance and reflectivity are respectively set as 50%, warp
Cross the semi-permeable half of light one reflection of transparent substrate 212.For concave mirror 214 in the front of human eye 220, needing will be extraneous
The light of environment enters human eye 220 through concave mirror 214 and transparent substrate 212, so herein on concave mirror 214
It is coated with semi-transparent semi-reflecting film.
In addition, the angle between 212 place plane of transparent substrate and 120 primary optical axis of balsaming lens is acute angle, it is exemplary, thoroughly
Angle between bright 212 place plane of substrate and 120 primary optical axis of balsaming lens can be set to 45 °, 50 ° or 60 °.Such one
Come, it can be according to the positional relationship and space length between different model flexible setting transparent substrates 212 and balsaming lens 120
Deng, be conducive to promoted 200 appearance of augmented reality device diversification and liberalization.
Optionally, as shown in figure 5, optical processing unit 210 includes transparent substrate 212 and concave mirror 214, transparent base
It is coated with semi-transparent semi-reflecting film on plate 212, total reflection film is coated on concave mirror 214,212 place plane of transparent substrate and gluing are saturating
Angle between 120 primary optical axis of mirror is acute angle, and concave mirror 214 is set to the side of the transmitted ray of transparent substrate 212.
Specifically, the semi-transparent semi-reflecting film plated on transparent substrate 212 herein is consistent with the above, unlike, in Fig. 3, concave surface
What reflecting mirror 214 utilized be reflection light, here be transmission light, therefore, there is no need to consider concave mirror
Whether 214, which can block ambient, enters human eye 220.In order to enhance the utilization rate of light, side is transmitted in transparent substrate 212 and is set
The concave mirror 214 set is coated with total reflection film.
Optionally, as shown in fig. 6, optical processing unit 210 includes transparent substrate 212 and concave mirror 214, transparent base
It is coated with polarization beam splitter on plate 212, semi-transparent semi-reflecting film, 212 place plane of transparent substrate and gluing are coated on concave mirror 214
Angle between 120 primary optical axis of lens is acute angle, and concave mirror 214 is set to the side of the reflection light of transparent substrate 212,
Quarter-wave plate 216 is provided between transparent substrate 212 and concave mirror 214.
Specifically, be coated with polarization beam splitter on transparent substrate 212, for carrying out polarization spectro to incident light, when entering
When the light penetrated is non-polarized light, with no restrictions to the polarization direction of polarization beam splitter, when incident light is polarised light, then
Need the polarization direction of polarization beam splitter vertical with the polarization direction of incident ray.It is acted on by the light splitting of polarization beam splitter, first
The light of polarization direction is launched, and for the light of reflection after quarter-wave plate 216, linearly polarized light is converted to circularly polarized light,
While it being reflected after 45 ° of phase deviation by concave mirror 214.Reflected light again passes by quarter-wave plate
216, circularly polarized light deviates 45 ° along original direction at this time, while circularly polarized light is converted to linearly polarized light.The linearly polarized light of conversion
It is vertical with the polarization of light direction of the first polarization direction, therefore can be transmitted through transparent substrate 212, it is ultimately incident upon human eye
220 visual ranges.
Likewise, above-described embodiment is please referred to, between 212 place plane of transparent substrate and 120 primary optical axis of balsaming lens
Angle is to be coated with semi-transparent semi-reflecting film on acute angle and concave mirror 214 to be equal to precedent.It is exemplary, it is put down where transparent substrate 212
Angle between 120 primary optical axis of face and balsaming lens can be set to 45 °, 50 ° or 60 °, and details are not described herein.
Optionally, as shown in fig. 7, optical processing unit 210 includes transparent substrate 212 and concave mirror 214, transparent base
It is coated with polarization beam splitter on plate 212, total reflection film is coated on concave mirror 214,212 place plane of transparent substrate and gluing are saturating
Angle between 120 primary optical axis of mirror is acute angle, and concave mirror 214 is set to the side of the transmitted ray of transparent substrate 212,
Quarter-wave plate 216 is provided between transparent substrate 212 and concave mirror 214.
Specifically, be coated with polarization beam splitter on transparent substrate 212, for carrying out polarization spectro to incident light, when entering
When the light penetrated is non-polarized light, with no restrictions to the polarization direction of polarization beam splitter, when incident light is polarised light, then
Need the polarization direction of polarization beam splitter consistent with the polarization direction of incident ray.It is acted on by the light splitting of polarization beam splitter, second
The light of polarization direction is transmitted, and for the light of transmission after quarter-wave plate 216, linearly polarized light is converted to circularly polarized light,
While it being reflected after 45 ° of phase deviation by concave mirror 214.Reflected light again passes by quarter-wave plate
216, circularly polarized light deviates 45 ° along original direction at this time, while circularly polarized light is converted to linearly polarized light.The linearly polarized light of conversion
It is vertical with the polarization of light direction of the second polarization direction, therefore can be reflected by transparent substrate 212, it is ultimately incident upon human eye
220 visual ranges.
As shown in fig. 7, when concave mirror 214 is set to the side of the transmitted ray of transparent substrate 212, without the concern for
Whether concave mirror 214, which can block ambient, enters human eye 220.In order to enhance the utilization rate of light, in transparent substrate 212
The concave mirror 214 of transmission side setting is coated with total reflection film.Wherein, the reflectivity of total reflection film is greater than 90%.
Optionally, the curvature absolute value of concave mirror 214 | R | range meet: 15mm < | R | < 100mm.Such one
Come, can reduce the thickness and weight of augmented reality device 200, mitigates constriction when wearing.It can also make to be incident on concave surface
Light at reflecting mirror 214 is reflected completely, reduces the probability that light cannot be incident on completely in effective reflected range.
Optionally, the transflection ratio of concave mirror 214 may be configured as 70:30,80:20 or 90:10, so, so that
The brightness of virtual screen and real picture is not much different, and fusion is better achieved.Keep the picture seen more life-like, rich in true
Sense, keeps user experience more preferable.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of augmented reality optics module, which is characterized in that including convex lens and balsaming lens, the convex lens and the glue
It closes lens to set gradually along the image source light direction of the launch, the focal length f of the convex lens1With the focal length f of the balsaming lens2Meet:
10mm < f1< 50mm, 30mm < f2< 200mm.
2. augmented reality optics module according to claim 1, which is characterized in that the convex lens is plano-convex lens, institute
Stating balsaming lens includes positive and negative lenses, and the positive lens is positioned close to described image source side, the positive lens with
The negative lens meets following relationship:
2.0 > n1-11.8,17 < v of >1-1< 30；1.9 > n1-21.7,65 > v of >1-2> 40；1.9 > n1-31.7,65 > v of >1-3
> 40；
Wherein, n1-1And v1-1The refractive index and Abbe number of the respectively described negative lens, n1-2And v1-2The respectively described positive lens
Refractive index and Abbe number, n1-3And v1-3The refractive index and Abbe number of the respectively described convex lens.
3. augmented reality optics module according to claim 1, which is characterized in that the convex lens is plano-convex lens, institute
Stating balsaming lens includes positive and negative lenses, and the negative lens is positioned close to described image source side, the positive lens with
The negative lens meets following relationship:
2.0 > n2-11.8,17 < v of >2-1< 30；1.7 > n2-21.5,75 > v of >2-2> 60；2.0 > n2-31.8,65 > v of >2-3
> 40；
Wherein, n2-1And v2-1The refractive index and Abbe number of the respectively described negative lens, n1-2And v1-2The respectively described positive lens
Refractive index and Abbe number, n2-3And v2-3The refractive index and Abbe number of the respectively described convex lens.
4. augmented reality optics module according to claim 2 or 3, which is characterized in that the convex lens, the positive lens
Face type with the negative lens includes spherical surface, it is aspherical and free form surface any one.
5. a kind of augmented reality device, which is characterized in that including augmented reality optical mode described in claim 1-4 any one
Group, image source and the optical processing unit that the augmented reality optics module light emission side is set, the optical processing unit
Light for the augmented reality optics module to be emitted is injected into human viewable's range.
6. augmented reality device according to claim 5, which is characterized in that the optical processing unit includes transparent substrate
And concave mirror, it is coated with semi-transparent semi-reflecting film, the transparent substrate institute respectively on the transparent substrate and the concave mirror
Angle between plane and balsaming lens primary optical axis is acute angle, and the concave mirror is set to the reflection of the transparent substrate
The side of light.
7. augmented reality device according to claim 5, which is characterized in that the optical processing unit includes transparent substrate
And concave mirror, semi-transparent semi-reflecting film is coated on the transparent substrate, and total reflection film is coated on the concave mirror, it is described
Angle where bright substrate between plane and balsaming lens primary optical axis is acute angle, and the concave mirror is set to the transparent base
The side of the transmitted ray of plate.
8. augmented reality device according to claim 5, which is characterized in that the optical processing unit includes transparent substrate
And concave mirror, polarization beam splitter is coated on the transparent substrate, and semi-transparent semi-reflecting film is coated on the concave mirror, it is described
Angle where transparent substrate between plane and balsaming lens primary optical axis is acute angle, and the concave mirror is set to described transparent
The side of the reflection light of substrate is provided with quarter-wave plate between the transparent substrate and the concave mirror.
9. augmented reality device according to claim 5, which is characterized in that the optical processing unit includes transparent substrate
And concave mirror, polarization beam splitter is coated on the transparent substrate, and total reflection film is coated on the concave mirror, it is described
Angle where bright substrate between plane and balsaming lens primary optical axis is acute angle, and the concave mirror is set to the transparent base
The side of the transmitted ray of plate is provided with quarter-wave plate between the transparent substrate and the concave mirror.
10. according to augmented reality device described in claim 6-9 any one, which is characterized in that the concave mirror
Curvature absolute value | R | range meet: 15mm < | R | < 100mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709676A (en) * | 2019-03-07 | 2019-05-03 | 浙江水晶光电科技股份有限公司 | A kind of augmented reality optics module and augmented reality device |
| CN112596240A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN112596238A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709676A (en) * | 2019-03-07 | 2019-05-03 | 浙江水晶光电科技股份有限公司 | A kind of augmented reality optics module and augmented reality device |
| CN112596240A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN112596238A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN112596238B (en) * | 2020-12-21 | 2022-09-20 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
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