CN209542958U - Anti-interference augmented reality display system and AR glasses - Google Patents
Anti-interference augmented reality display system and AR glasses Download PDFInfo
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- CN209542958U CN209542958U CN201822087714.7U CN201822087714U CN209542958U CN 209542958 U CN209542958 U CN 209542958U CN 201822087714 U CN201822087714 U CN 201822087714U CN 209542958 U CN209542958 U CN 209542958U
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Abstract
The utility model relates to augmented reality fields, in particular to a kind of anti-interference augmented reality display system and AR glasses.The anti-interference augmented reality display system and AR glasses are by turning back the integrated and design of plane component, phase delay chip, reflection amplifier element and polarization absorption element to image display, optical path, first external environmental light of the first linear polarization direction in the first external environmental light is absorbed by polarization absorption element, will not be received by human eye；And the first external environmental light of the second linear polarization direction in the first external environmental light is turned back plane component through polarization absorption element and optical path, even if being reflected by image display, first external environmental light of the second linear polarization direction after reflection can also turn back plane component through polarization absorption element and optical path, will not enter human eye.Therefore, the anti-interference augmented reality display system and AR glasses can effectively prevent the first external environmental light interference eye-observation image to be displayed and the second external environment.
Description
Technical field
The utility model relates to augmented reality fields, in particular to a kind of anti-interference augmented reality display system
System and AR glasses.
Background technique
As shown in Figure 1, being a kind of common augmented reality display system, including reflection amplifier element 1, optical path turnover plane
Element 2 and image display 3, the image to be displayed transmitted from image display 3 are reflexed to by optical path turnover plane component 2 first
Amplifier element 1 is reflected, is reflected and is amplified by the face S12 of reflection amplifier element 1, amplified image to be displayed is transferred through optical path
It is received after plane component 2 by human eye, external environmental light is successively through quilt after reflection amplifier element 1 and optical path turnover plane component 2
Human eye receives.
For the augmented reality display system of existing (shown in Fig. 1), the first external environmental light A transfers plane component through optical path
It is received after 2 face S21 reflection by human eye.Therefore, the first external environmental light A is final after the existing augmented reality display system
It is the 50% of the first external environmental light A energy by the received energy of human eye.Second external environmental light B has 50% energy through anti-
Amplifier element 1 is penetrated, has 50% can penetrate optical path turnover plane component 2 through the second external environmental light B of reflection amplifier element 1
It is received by human eye.Therefore, the second external environmental light B is after the existing augmented reality display system finally by the received energy of human eye
Amount is the 50%*50%=25% of the second external environmental light B energy.Therefore, the received first external environmental light A energy of human eye is
By 2 times of the received second external environmental light B energy of human eye, therefore can be to eye-observation virtual image to be shown and the second extraneous ring
Cause serious interference in border.
Utility model content
In view of this, the first external environmental light can be prevented to interfere eye-observation the purpose of this utility model is to provide a kind of
The anti-interference augmented reality display system and AR glasses of image to be displayed and the second external environment, to solve the above problems.
To achieve the above object, the utility model provides the following technical solutions:
The utility model preferred embodiment provides a kind of anti-interference augmented reality display system, including image display, light
Road is turned back plane component, phase delay chip, reflection amplifier element and polarization absorption element, and optical path plane component of turning back is pair
The light reflection of first linear polarization direction and the light transmissive element to the second linear polarization direction, the phase delay chip are 1/
4 wave plates, the reflection amplifier element is the element for being 50% to the transmitance and reflectivity of visible light, the polarization absorption member
Part is the light absorption to the first linear polarization direction and the light transmissive element to the second linear polarization direction；
Optical path plane component of turning back is set to the output end of described image display, and the phase delay chip is set to
The optical path is turned back between plane component and reflection amplifier element, and the polarization absorption element is set to the optical path and turns back plane
Element deviates from the side of the phase delay chip；
The image light of the first linear polarization direction in the image light of described image display output is by the optical path
Plane component of turning back reflexes to the phase delay chip, and the image light of first linear polarization direction is by the phase delay
Piece is converted to the image light of the first circular polarization, and the image light of first circular polarization amplifies member by the reflection
Part reflexes to the phase delay chip, the first circular polarization that the phase delay chip reflects the reflection amplifier element
Image light is converted to the image light of the second linear polarization direction, and the image light of second linear polarization direction penetrates institute
It states optical path to turn back plane component and polarization absorption element, to form image to be displayed；
First external environmental light of the first linear polarization direction in the first external environmental light is by the polarization absorption element
Absorb, the first external environmental light of the second linear polarization direction in the first external environmental light through the polarization absorption element and
Optical path is turned back plane component；
Wherein, first linear polarization direction is orthogonal with second linear polarization direction, first linear polarization
45 ° of phase phase difference of direction and first circular polarization.
Optionally, the anti-interference augmented reality display system further includes to the adjustable light modulator of light transmission rate, institute
It states light modulator and is set to the side that the reflection amplifier element deviates from the phase delay chip.
Optionally, it is anti-to the light of the first linear polarization direction to be coated on a transparent substrate to turn back plane component for the optical path
It penetrates and the element of the light transmissive film layer to the second linear polarization direction.
Optionally, the optical path turn back plane component include transparent substrates and to the reflection of the light of the first linear polarization direction and
It is described to the light reflection of the first linear polarization direction and to the second linear polarization to the light transmissive film of the second linear polarization direction
The light transmissive film in direction is attached at the transparent substrates close to the side of the phase delay chip.
Optionally, the polarization absorption element is sheet, and the polarization absorption element and the optical path are turned back plane component
In parallel.
Optionally, the polarization absorption element and the optical path are turned back between plane component filled with medium.
Optionally, the polarization absorption element is sheet, and the polarization absorption element and the optical path are turned back plane component
It is not parallel.
Optionally, the polarization absorption element is membranaceous, and the polarization absorption element is attached at the optical path and turns back plane
Element deviates from the side of the phase delay chip.
Optionally, the anti-interference augmented reality display system further includes the optical element on opticity without influence, institute
State that optical element is set to described image display and optical path is turned back between plane component and close to described image display.
The utility model preferred embodiment also provides a kind of AR glasses, shows system including above-mentioned anti-interference augmented reality
System.
The anti-interference augmented reality display system that the utility model preferred embodiment provides, by image display, light
Road is turned back the integrated and design of plane component, phase delay chip, reflection amplifier element and polarization absorption element, the first external environment
First external environmental light of the first linear polarization direction in light is absorbed by the polarization absorption element, will not be received by human eye；
And the first external environmental light of the second linear polarization direction in the first external environmental light penetrates the polarization absorption element and light
Road is turned back plane component, even if being reflected by described image display, the extraneous ring of first of the second linear polarization direction after reflection
Border light can also turn back plane component through the polarization absorption element and optical path, will not enter human eye.Therefore, the utility model mentions
Supply anti-interference augmented reality display system can effectively prevent the first external environmental light interference eye-observation image to be displayed and
Second external environment.Also, anti-interference augmented reality display system provided by the utility model is finally received to aobvious by human eye
The energy of diagram picture is up to the 50%*50%*100%=25% of the image light energy of image display output.Therefore, phase
It is provided by the utility model anti-for the augmented reality display system (utilization ratio of optical energy 12.5%) of existing (shown in Fig. 1)
Interference augmented reality display system improves the utilization ratio of optical energy of image to be displayed, so that it is aobvious to reduce anti-interference augmented reality
Show the power consumption of system.
The AR glasses that the utility model preferred embodiment provides include above-mentioned anti-interference augmented reality display system, thus are had
There is similar beneficial effect.
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 appreciated 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 the structural schematic diagram of existing augmented reality display system.
Fig. 2 is a kind of structural representation for anti-interference augmented reality display system that the utility model preferred embodiment provides
Figure.
Fig. 3 is a kind of structural schematic diagram of anti-interference augmented reality display system in embodiment.
Fig. 4 is the structural schematic diagram of anti-interference augmented reality display system in another embodiment.
Fig. 5 is the structural schematic diagram of anti-interference augmented reality display system in another embodiment.
Fig. 6 is the structural schematic diagram of anti-interference augmented reality display system in another embodiment.
Fig. 7 is the structural schematic diagram of anti-interference augmented reality display system in another embodiment.
Icon: the anti-interference augmented reality display system of 100-；The first external environmental light of A-；The second external environmental light of B-；10-
Image display；30- optical path is turned back plane component；50- phase delay chip；70- reflects amplifier element；90- polarization absorption element；
95- medium；98- light modulator；99- optical element.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be matched with a variety of different
It sets to arrange and design.
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.Reality based on the utility model
Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs 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 utility model
In description, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and should not be understood as only or imply
Relative importance.
Referring to FIG. 2, Fig. 2 is a kind of anti-interference augmented reality display system 100 provided by the embodiment of the utility model
Structural schematic diagram.The anti-interference augmented reality display system 100 can be applied to HMD (Head Mount Display, wear-type
Visual device), the augmented realities equipment such as intelligent glasses, herein with no restrictions.The anti-interference augmented reality display system 100 includes
Image display 10, optical path are turned back plane component 30, phase delay chip 50, reflection amplifier element 70 and polarization absorption element 90.
Optical path plane component 30 of turning back is set to the output end of described image display 10, and the phase delay chip 50 is set to institute
It states optical path to turn back between plane component 30 and reflection amplifier element 70, the polarization absorption element 90 is set to the optical path and turns back
Plane component 30 deviates from the side of the phase delay chip 50.
Image display 10 is used to export the image light of the first linear polarization direction.Described image display 10 can be
The lighting source component for showing source by transmission-type or reflective LOCS and capable of exporting collimation parallel light collectively constitutes, and may be used also
Being collectively constituted by optical fiber scanning imaging system and colimated light system.In the present embodiment, which is by transmission-type
LOCS shows that source is collectively constituted with the lighting source component that can export collimation parallel light.
The optical path turns back plane component 30 for the light reflection to the first linear polarization direction and to the second linear polarization side
To light transmissive element.First linear polarization direction is orthogonal with second linear polarization direction.Optionally, the light
Road plane component 30 of turning back is to be coated on a transparent substrate to the reflection of the light of the first linear polarization direction and to the second linear polarization
The element of the light transmissive film layer in direction.Optionally, the optical path turns back plane component 30 including transparent substrates and to First Line
Property polarization direction light reflection and to the light transmissive film of the second linear polarization direction.The light to the first linear polarization direction
It reflects and the transparent substrates is attached at close to the phase delay chip 50 to the light transmissive film of the second linear polarization direction
Side.
The phase delay chip 50 is quarter wave plate.
The reflection amplifier element 70 is the element for being 50% to the transmitance and reflectivity of visible light.With the optical path
Plane component 30 of turning back is similar, which can be the transmitance being coated on a transparent substrate to visible light
It is the element of 50% film layer with reflectivity.The reflection amplifier element 70 can also be including transparent substrates and to visible light
Transmitance and reflectivity are 50% film.The transmitance and reflectivity to visible light be 50% film be attached at it is described
Transparent substrates are close to the side of the phase delay chip 50.
The polarization absorption element 90 is to the light absorption of the first linear polarization direction and to the second linear polarization direction
Light transmissive element.The polarization absorption element 90 can be sheet or membranaceous.It, can when polarization absorption element 90 is sheet
With parallel with optical path plane component 30 of turning back, as shown in Figure 2.It, can also be with when polarization absorption element 90 is sheet
Optical path plane component 30 of turning back is not parallel, as shown in Figure 3.When polarization absorption element 90 and the optical path are turned back plane component
30 it is parallel when, the polarization absorption element 90 can turn back with the optical path plane component 30 against (not illustrating meaning) or
(as shown in Figure 2) at a certain distance.In addition, when polarization absorption element 90 and the optical path are turned back, plane component 30 is parallel and interval
When certain distance, the polarization absorption element 90 and the optical path are turned back between plane component 30 filled with medium 95, such as Fig. 4 institute
Show.When polarization absorption element 90 be it is membranaceous when, the polarization absorption element 90 be attached at the optical path turn back plane component 30 back
Side from the phase delay chip 50, as shown in Figure 5.When the polarization absorption element 90 and the optical path are turned back plane component
It 30 abuts, the polarization absorption element 90 and the optical path are turned back between plane component 30 filled with medium 95 or polarization absorption
Element 90 with membranaceous form be attached at the optical path turn back plane component 30 when, the optics module of integral type can be formed, with
Reduce installation assembly difficulty, the external support structure of the simplified anti-interference augmented reality display system 100, conducive to batch production
Deng.
The image of the first linear polarization direction in image light exported by above-mentioned setting, described image display 10
Light reflexes to the phase delay chip 50, the image of first linear polarization direction by optical path plane component 30 of turning back
Light is converted to the image light of the first circular polarization, the image of first circular polarization by the phase delay chip 50
Light reflexes to the phase delay chip 50 by the reflection amplifier element 70, and the phase delay chip 50 amplifies the reflection
The image light for the first circular polarization that element 70 reflects is converted to the image light of the second linear polarization direction, and described second
The image light of linear polarization direction is turned back plane component 30 and polarization absorption element 90 through the optical path, to be shown to be formed
Image.Wherein, 45 ° of phase phase difference of first linear polarization direction and first circular polarization.
Therefore, anti-interference augmented reality display system 100 provided by the utility model is finally received to be shown by human eye
The energy of image is up to the 50%*50%*100%=25% of the image light energy of the output of image display 10.Relative to
The augmented reality display system (utilization ratio of optical energy 12.5%) of existing (shown in Fig. 1), it is provided by the utility model anti-interference
Augmented reality display system 100 improves the utilization ratio of optical energy of image to be displayed, so that it is aobvious to reduce anti-interference augmented reality
Show the power consumption of system 100.
First external environmental light A of the first linear polarization direction in the first external environmental light A is by the polarization absorption member
Part 90 absorbs, and will not be received by human eye.First external environmental light A of the second linear polarization direction in the first external environmental light A
It turns back plane component 30 through the polarization absorption element 90 and optical path, even if being reflected by described image display 10, after reflection
The first external environmental light A of the second linear polarization direction can also turn back through the polarization absorption element 90 and optical path flat element
Part 30 will not enter human eye.Therefore, anti-interference augmented reality display system 100 provided by the utility model can be prevented effectively
First external environmental light A interferes eye-observation image to be displayed and the second external environment.
Second external environmental light B has 50% energy through reflection amplifier element 70, through the of reflection amplifier element 70
Two external environmental light B penetrate that phase delay chip 50, optical path turnover plane component and polarization absorption element 90 have again 50% can be saturating
Cross 50%*50%=25% of the optical path turnover plane component by the received light energy of human eye for the second external environmental light B energy.
Based on anti-interference augmented reality display system 100 shown in Fig. 2 to Fig. 5, optionally, the anti-interference augmented reality
Display system 100 further includes to the adjustable light modulator 98 of extraneous ambient light transmitance.The light modulator 98 is arranged
Deviate from the side of the phase delay chip 50 in the reflection amplifier element 70.The light modulator 98 can be for light transmission
The adjustable liquid crystal light valve of rate.Since anti-interference 100 principle of augmented reality display system of Fig. 2 to Fig. 5 is identical, structure is similar, because
This, anti-interference augmented reality display system 100 further includes that the structure after light modulator 98 is only illustrated on the basis of Fig. 2, such as
Shown in Fig. 6.It can control the transmitance of the second external environmental light B by the way that light modulator 98 is arranged, for example, the anti-interference enhancing
Real display system 100 can reduce the transmitance of the second external environmental light B, when forming virtual image to be displayed to mention
The contrast of high image to be displayed, to enable users to clearer see virtual image to be displayed.
Based on Fig. 2 to anti-interference augmented reality display system 100 shown in fig. 6, optionally, the anti-interference augmented reality
Display system 100 further includes the optical element 99 on opticity without influence, and it is aobvious that the optical element 99 is set to described image
Show that device 10 and optical path are turned back between plane component 30 and close to described image display 10.Due to the anti-interference enhancing of Fig. 2 to Fig. 6
Real 100 principle of display system is identical, and structure is similar, and therefore, anti-interference augmented reality display system 100 further includes optical element
Structure after 99 is only illustrated on the basis of Fig. 2, as shown in Figure 7.The optical element 99, which can be, exports image display 10
Image light the elements of functions such as zoom in or out.
The utility model preferred embodiment also provides a kind of AR glasses, including above-mentioned anti-interference augmented reality display system
100.In actual implementation, which further includes some aobvious with connecting, fixing, assemble, wearing the anti-interference augmented reality
Show the element of system 100, this is not restricted.
Since the AR glasses that utility model preferred embodiment provides include above-mentioned anti-interference augmented reality display system
100, thus there is the beneficial effect similar with above-mentioned anti-interference augmented reality display system 100, therefore not to repeat here.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The 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 anti-interference augmented reality display system, which is characterized in that including image display, optical path turn back plane component,
Phase delay chip, reflection amplifier element and polarization absorption element, the optical path turn back plane component as to the first linear polarization side
To light reflection and to the light transmissive element of the second linear polarization direction, the phase delay chip is quarter wave plate, the reflection
Amplifier element is the element for being 50% to the transmitance and reflectivity of visible light, and the polarization absorption element is linear to first
The light absorption of polarization direction and light transmissive element to the second linear polarization direction；
Optical path plane component of turning back is set to the output end of described image display, and the phase delay chip is set to described
Optical path is turned back between plane component and reflection amplifier element, and the polarization absorption element is set to the optical path and turns back plane component
Away from the side of the phase delay chip；
The image light of the first linear polarization direction in the image light of described image display output is turned back by the optical path
Plane component reflexes to the phase delay chip, and the image light of first linear polarization direction is turned by the phase delay chip
It is changed to the image light of the first circular polarization, the image light of first circular polarization is anti-by the reflection amplifier element
It is incident upon the phase delay chip, the image for the first circular polarization that the phase delay chip reflects the reflection amplifier element
Light is converted to the image light of the second linear polarization direction, and the image light of second linear polarization direction penetrates the light
Road is turned back plane component and polarization absorption element, to form image to be displayed；
First external environmental light of the first linear polarization direction in the first external environmental light is absorbed by the polarization absorption element,
First external environmental light of the second linear polarization direction in the first external environmental light penetrates the polarization absorption element and optical path
It turns back plane component；
Wherein, first linear polarization direction is orthogonal with second linear polarization direction, first linear polarization direction
With 45 ° of phase phase difference of first circular polarization.
2. anti-interference augmented reality display system according to claim 1, which is characterized in that the anti-interference augmented reality
Display system further includes to the adjustable light modulator of light transmission rate, and the light modulator is set to the reflection amplifier element
Away from the side of the phase delay chip.
3. anti-interference augmented reality display system according to claim 1 or 2, which is characterized in that the optical path is turned back flat
Face element part is to be coated on a transparent substrate to the reflection of the light of the first linear polarization direction and saturating to the light of the second linear polarization direction
The element for the film layer penetrated.
4. anti-interference augmented reality display system according to claim 1 or 2, which is characterized in that the optical path is turned back flat
Face element part includes transparent substrates and reflects and the light of the first linear polarization direction to the light transmissive of the second linear polarization direction
Film, the light to the first linear polarization direction are reflected and are attached to the light transmissive film of the second linear polarization direction described
Bright substrate is close to the side of the phase delay chip.
5. anti-interference augmented reality display system according to claim 1 or 2, which is characterized in that the polarization absorption member
Part is sheet, and the polarization absorption element and the optical path plane component of turning back are parallel.
6. anti-interference augmented reality display system according to claim 5, which is characterized in that the polarization absorption element with
The optical path is turned back between plane component filled with medium.
7. anti-interference augmented reality display system according to claim 1 or 2, which is characterized in that the polarization absorption member
Part is sheet, and the polarization absorption element and the optical path plane component of turning back are not parallel.
8. anti-interference augmented reality display system according to claim 1 or 2, which is characterized in that the polarization absorption member
Part be it is membranaceous, the polarization absorption element be attached at the optical path turn back plane component deviate from the phase delay chip side.
9. anti-interference augmented reality display system according to claim 1 or 2, which is characterized in that the anti-interference enhancing
Real display system further includes the optical element on opticity without influence, and the optical element is set to described image display
And optical path is turned back between plane component and close to described image display.
10. a kind of AR glasses, which is characterized in that including the described in any item anti-interference augmented reality display systems of claim 1-8
System.
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| CN201822087714.7U CN209542958U (en) | 2018-12-12 | 2018-12-12 | Anti-interference augmented reality display system and AR glasses |
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| CN201822087714.7U CN209542958U (en) | 2018-12-12 | 2018-12-12 | Anti-interference augmented reality display system and AR glasses |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927970A (en) * | 2019-12-11 | 2020-03-27 | 深圳惠牛科技有限公司 | AR optical display module and augmented reality display device |
| CN111025659A (en) * | 2019-12-31 | 2020-04-17 | 上海视欧光电科技有限公司 | Augmented reality optical module and augmented reality equipment |
| CN111025638A (en) * | 2019-12-11 | 2020-04-17 | 深圳惠牛科技有限公司 | AR optical display module and augmented reality equipment |
| CN111273449A (en) * | 2020-03-23 | 2020-06-12 | 深圳惠牛科技有限公司 | Augmented reality system and augmented reality device |
| CN112198704A (en) * | 2020-03-11 | 2021-01-08 | 友达光电股份有限公司 | Display device |
| WO2021185033A1 (en) * | 2020-03-20 | 2021-09-23 | 维沃移动通信有限公司 | Optical system and near-eye display device |
| WO2021197060A1 (en) * | 2020-03-31 | 2021-10-07 | 优奈柯恩(北京)科技有限公司 | Head-mounted display device |
| WO2021197062A1 (en) * | 2020-03-31 | 2021-10-07 | 优奈柯恩(北京)科技有限公司 | Optical apparatus and head-mounted device |
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2018
- 2018-12-12 CN CN201822087714.7U patent/CN209542958U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927970A (en) * | 2019-12-11 | 2020-03-27 | 深圳惠牛科技有限公司 | AR optical display module and augmented reality display device |
| CN111025638A (en) * | 2019-12-11 | 2020-04-17 | 深圳惠牛科技有限公司 | AR optical display module and augmented reality equipment |
| CN111025659A (en) * | 2019-12-31 | 2020-04-17 | 上海视欧光电科技有限公司 | Augmented reality optical module and augmented reality equipment |
| CN111025659B (en) * | 2019-12-31 | 2022-04-19 | 合肥视涯技术有限公司 | Augmented reality optical module and augmented reality equipment |
| US11579446B2 (en) | 2019-12-31 | 2023-02-14 | Seeya Optronics Co., Ltd. | Augmented reality optical module |
| CN112198704A (en) * | 2020-03-11 | 2021-01-08 | 友达光电股份有限公司 | Display device |
| CN112198704B (en) * | 2020-03-11 | 2023-03-14 | 友达光电股份有限公司 | Display device |
| WO2021185033A1 (en) * | 2020-03-20 | 2021-09-23 | 维沃移动通信有限公司 | Optical system and near-eye display device |
| EP4123359A4 (en) * | 2020-03-20 | 2023-10-04 | Vivo Mobile Communication Co., Ltd. | Optical system and near-eye display device |
| CN111273449A (en) * | 2020-03-23 | 2020-06-12 | 深圳惠牛科技有限公司 | Augmented reality system and augmented reality device |
| WO2021197060A1 (en) * | 2020-03-31 | 2021-10-07 | 优奈柯恩(北京)科技有限公司 | Head-mounted display device |
| WO2021197062A1 (en) * | 2020-03-31 | 2021-10-07 | 优奈柯恩(北京)科技有限公司 | Optical apparatus and head-mounted device |
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