CN207281388U - Optical system and augmented reality glasses - Google Patents
Optical system and augmented reality glasses Download PDFInfo
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- CN207281388U CN207281388U CN201721373864.3U CN201721373864U CN207281388U CN 207281388 U CN207281388 U CN 207281388U CN 201721373864 U CN201721373864 U CN 201721373864U CN 207281388 U CN207281388 U CN 207281388U
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Abstract
The disclosure is directed to a kind of optical system and augmented reality glasses, optical system includes matched first photo structure, the second photo structure and the 3rd photo structure；The emergent ray of augmented reality glasses light source is isolated the polarised light of the first kind by the first photo structure, the polarised light of the first kind is synthesized the polarised light of the 3rd type by the second photo structure, and the polarised light of the 3rd type synthesizes the polarised light of Second Type by the second photo structure after the reflection of the 3rd photo structure and is emitted through the first photo structure；Ambient light is emitted through the polarised light for isolating Second Type after the 3rd photo structure and the second photo structure by the first photo structure, the polarised light of Second Type through the first photo structure；The polarised light of Second Type and the polarised light of the first kind are the vertical linearly polarized light in polarization direction.Optical system in the disclosure can increase the moving range of pupil while larger visual angle is obtained, with suitable for the wearer with different interpupillary distances；And be conducive to mitigate the weight of augmented reality glasses.
Description
Technical field
This disclosure relates to field of terminal technology, more particularly to a kind of optical system and augmented reality glasses.
Background technology
The virtual image information and the true of user that AR (Augmented Reality) glasses can generate computer regard
Feel information superposition, and perceived by user, so as to reach the sensory experience of exceeding reality.In this way, can connect real world with
Virtual world, brings the brand-new visual experience of user.
Utility model content
The disclosure provides a kind of optical system and augmented reality glasses, to solve the deficiency in correlation technique.
According to the first aspect of the embodiment of the present disclosure, there is provided a kind of optical system, applied to augmented reality glasses, the light
System includes matched first photo structure, the second photo structure and the 3rd photo structure；
The emergent ray of the light source transmitting of the augmented reality glasses isolates the first kind by first photo structure
Polarised light, the polarised light of the first kind are synthesized the polarised light of the 3rd type, the three classes by second photo structure
The polarised light of type is synthesized by second photo structure polarised light of Second Type after the 3rd photo structure reflection, and described the
The polarised light of two types is emitted through first photo structure；
Ambient light isolates the through after the 3rd photo structure and second photo structure by first photo structure
The polarised light of two types, the polarised light of the Second Type are emitted through first photo structure；
Wherein, the polarised light of the polarised light of the Second Type and the first kind is the vertical linear polarization in polarization direction
Light.
Optionally, the polarised light of the Second Type and either one in the polarised light of the first kind are P polarization light
When, the polarised light of the Second Type is S-polarization light with the opposing party in the polarised light of the first kind.
Optionally, the polarised light of the 3rd type includes circularly polarized light.
Optionally, first photo structure includes the first optical flat and the polarization on first optical flat
Reflectance coating, the reflection of polarization film are used for the polarization of the polarised light for reflecting the first kind and the transmission Second Type
Light.
Optionally, first photo structure further includes the first polaroid of the polarised light for absorbing the first kind, described
First polaroid is relative to the reflection of polarization film close to wearer.
Optionally, second photo structure include the second optical flat and on second optical flat first
Wave plate, first wave plate are used to the polarised light for the first kind isolated by first photo structure synthesizing the described 3rd
The polarised light of type.
Optionally, first wave plate includes quarter-wave plate.
Optionally, the 3rd photo structure includes the 3rd optical flat and the optics on the 3rd optical flat
Film, the optical thin film is used to reflect and transmitted ray.
Optionally, the 4th photo structure is further included, the 4th photo structure includes the second wave plate and second of stacking arrangement
Polaroid, second wave plate are set close to the light source；
Wherein, second polaroid is used to absorbing the polarised light of the Second Type, and second wave plate is used for will be through
The polarised light of the first kind of second polarizer transmission is converted into the polarised light of Second Type, with inclined by described second
Mating plate absorbs.
Optionally, second wave plate includes quarter-wave plate.
Optionally, the 4th photo structure is located on the light source.
Optionally, the 5th photo structure is further included, the 5th photo structure is used to correct and homogenize from the light source
Emergent ray.
Optionally, the 5th photo structure includes field lens.
According to the second aspect of the embodiment of the present disclosure, there is provided a kind of augmented reality glasses, including display and as above-mentioned
Optical system described in any one embodiment.
Optionally, the display is used to launch the emergent ray.
From above-described embodiment, the optical system in the disclosure can be by ambient light using the optical design of reflection of polarization formula
Line is converted to the polarised light for injecting human eye with emergent ray, and can increase the movement of pupil while larger visual angle is obtained
Scope, with suitable for the wearer with different interpupillary distances；Also, the optical system uses multipath reflection framework, is conducive to mitigate
The weight of augmented reality glasses.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.
Fig. 1 is a kind of structure diagram of optical system according to an exemplary embodiment.
Fig. 2 is a kind of wearing schematic diagram of augmented reality glasses according to an exemplary embodiment.
Fig. 3 is the structure diagram of another optical system according to an exemplary embodiment.
Fig. 4 is the structure diagram of another optical system according to an exemplary embodiment.
Fig. 5 is the structure diagram of another optical system according to an exemplary embodiment.
Fig. 6 is the structure diagram of another optical system according to an exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
It is also intended in the application and " one kind " of singulative used in the attached claims, " described " and "the" including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps
Containing the associated list items purpose of one or more, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, do not departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
Fig. 1 is that structure diagram, Fig. 2 of a kind of optical system according to an exemplary embodiment are according to an example
Property implement the wearing schematic diagram of a kind of augmented reality glasses that exemplifies.Optical system 100 can be applied to figure as shown in fig. 1
, can be by towards the ambient light of wearer and position by the optical system 100 in augmented reality glasses 200 described in 2
The polarised light of the Second Type from the outgoing of the optical system 200 is converted into the emergent ray of light source on augmented reality glasses 200,
Virtual environment information can be combined with the actual visual information of wearer with this, reach the sensory experience of exceeding reality.Such as Fig. 1
Shown, which can include matched first photo structure 1, the second photo structure 2 and the 3rd photo structure 3, and first
Photo structure 1 can be set close to the face of wearer, and the 3rd photo structure 3 can then be set close to opposite opposite side.Its
In, ambient light can be converted to from the Second Type of the first photo structure 1 outgoing with emergent ray by following optical paths
Polarised light：
It is the optical path of emergent ray B as shown in Figure 1：The emergent light that the light source 201 of self-reinforcing Reality glasses 200 is sent
Line B is isolated the polarised light of the first kind, the polarization of the first kind after the first photo structure 1 by first optical texture 1
Light synthesizes the polarised light of the 3rd type after the second photo structure 2 by it, the polarised light of the 3rd type again with the 3rd photo structure 3
Back reflection is contacted, so as to synthesize the polarised light of Second Type by the second photo structure 2, and is further transmitted by the first photo structure 1
Into human eye.
It is illustrated in figure 3 the optical path of ambient light A：The 3rd optical texture 3 is passed through towards the ambient light A of wearer
And second polarised light for isolating Second Type after photo structure 2 by the first photo structure 1, the polarized light transmission of the Second Type is extremely
Human eye.
From above-described embodiment, the optical system in the disclosure can be by ambient light using the optical design of reflection of polarization formula
Line is converted to the polarised light for injecting human eye with emergent ray, and can increase the movement of pupil while larger visual angle is obtained
Scope, with suitable for the wearer with different interpupillary distances；Also, the optical system uses multipath reflection framework, is conducive to mitigate
The weight of augmented reality glasses.
In above-mentioned each embodiment, the polarised light of Second Type can be polarization direction phase with the polarised light of the first kind
Mutually vertical linearly polarized light.For example, the polarised light of Second Type can be S-polarization light, then the corresponding first kind
Polarised light can be P polarization light；Alternatively, the polarised light of Second Type is P light, the polarised light of the corresponding first kind is S
Light, in this way, can make it that the polarised light for finally injecting human eye is P polarization light, that is, optical system 100 is to allow P polarization light saturating
Penetrate, so that user can watch LCD screen after wearing the augmented reality glasses 200 with the optical system 100, widen
Application scenarios, lift user experience.
For ease of description, polarised light of following embodiments using the polarised light of Second Type as P polarization light, the first kind is
Illustrated exemplified by S-polarization light.
Technical solution based on the disclosure, still by taking Fig. 1, embodiment illustrated in fig. 3 as an example, the first photo structure 1 can include the
One optical flat 11 and the reflection of polarization film 12 on the first optical flat 11, reflection of polarization film 12 can reflect S-polarization
Light and P polarization light is transmissive to, so emergent ray B can be separated into P polarization light and S-polarization by reflection of polarization film 12
Light, also, S-polarization light is reflected, P polarization light is transmitted.Wherein, reflection of polarization film 12 can be fixedly connected on by colloid
On first optical flat 11；Can also be fixed to by techniques such as coining or plated films on the first optical flat 11, the disclosure
Limited not to this.
In the present embodiment, the second photo structure 2 can include the second optical flat 21 and positioned at the second optical flat 21
On the first wave plate 22, which can be used for be separated and being reflected by the reflection of polarization film 12 on the first photo structure 1
The photosynthetic polarised light for becoming the 3rd type of S-polarization.For example, the first wave plate 22 can include quarter-wave plate, so that
When being in 45 ° of angles between the plane of oscillation of S-polarization light and the optical axis of quarter-wave plate, photosynthetic become of S-polarization can be justified
Polarised light, the circularly polarized light can pass through the second photo structure 2 and be moved towards the 3rd photo structure 3.Wherein, the first wave plate 22 can be with
It is to be fixedly connected on by colloid on the second optical flat 21；Can also be fixed to second by techniques such as coining or plated films
On optical flat 21, the disclosure is limited not to this.
Further, the 3rd photo structure 3 can include the 3rd optical flat 31 and on the 3rd optical flat 31
Optical thin film 32, the optical thin film 32 can be used for reflection and transmitted ray.For example, in a upper embodiment, by second
The circularly polarized light that photo structure 2 is synthesized and passed through can be reflected by the optical thin film 32, after being reflected by the optical thin film 32
Circularly polarized light can change rotation direction, for example, right-circularly polarized light is converted to by the left circularly polarized light before reflecting, and the dextrorotation is inclined
The light that shakes can synthesize P polarization light again through after the second photo structure 2 by the second wave plate 22, which then passes through first
Human eye is arrived at after optical flat 11, reflection of polarization film 12.Wherein, optical thin film 32 can be fixedly connected on the 3rd by colloid
On optical flat 31；Can also be fixed to by techniques such as coining or plated films on the second optical flat 31；In addition, the optics
Film 32 can be semi-transparent semi-reflecting film, i.e. the transmissivity of optical thin film 32 and reflectivity is respectively 50%, certainly, the optical thin film
32 reflectivity and transmissivity can also follow other ratios, and the disclosure is limited not to this.Wherein, the 3rd photo structure
3 towards the surface of ambient light A can be that sphere is either aspherical or free form surface etc., and the disclosure is limited not to this
System.
It is inevitable when wearer, which wears the augmented reality glasses 200, to be in environment space in above-mentioned each embodiment
Distinct other light beyond ambient light A are exposed in optical system 100.Following embodiments are still with Second Type
Polarised light is P polarization light, the polarised light of the first kind is to illustrate exemplified by S-polarization light.
In one embodiment, as shown in figure 4, the first photo structure 1 can also include the first polaroid 13, when in external environment condition
There are ambient light C towards during the movement of the first photo structure 1, which can be separated into P polarization light and S is inclined
Shake light, and S-polarization light can be absorbed by first polaroid 13, so as to avoid the S-polarization light anti-by reflection of polarization film 12
Human eye is incident upon, causes vision to disturb.Wherein, face of first polaroid 13 relative to reflection of polarization film 11 closer to wearer
Portion, so that the S-polarization light for avoiding being separated and being reflected by reflection of polarization film 11 is absorbed by first polaroid 13, advantageously ensures that
Light path it is unimpeded, meanwhile, the S-polarization light for ensureing to be isolated by ambient light C will not reflex to human eye by reflection of polarization film 12.Lift
For example, 12 and first polaroid 13 of reflection of polarization film can be located at the both sides of the first optical flat 11 respectively as shown in Figure 4, when
So, in other alternative embodiments, reflection of polarization film 12 can be located at the same of the first optical flat 11 with the first polaroid 13
Side, the disclosure are limited not to this.
In the present embodiment, P polarization light that is being isolated by ambient light C and passing through the first photo structure 1 is avoided exemplified by
Jamming light source 201, causes 100 inside parasitic reflection of optical system, still by taking embodiment illustrated in fig. 4 as an example, optical system 100 may be used also
With including the 4th photo structure 4, the 4th photo structure 4 can include the second polaroid 41, which can be used for absorbing P
Polarised light, prevents 100 internal stray of optical system from launching, and improves image quality.Wherein, the 4th photo structure 4 can be independently arranged
It can also be attached on light source 201, the disclosure is limited not to this.
Further, the 4th photo structure 4 can also include the second wave plate 42, and second wave plate 42 is relative to the second polarisation
Piece 41 is set closer to light source 201, and can be used for the S-polarization light transmitted through the second polaroid 41 being converted into P polarization
Light, and absorbed by the second polaroid 41, the second wave plate 42 can include quarter-wave plate.Specifically, such as Fig. 5 institutes
Showing, ambient light A is that can isolate P polarization light and S-polarization light by reflection of polarization film 12 through the first photo structure 1, wherein, P polarization
Light is incident to human eye through the first photo structure 1, and S-polarization light is then reflected by reflection of polarization film 11, anti-by reflection of polarization film 11
The S-polarization light penetrated is moved towards the 4th optical texture 4, and passes through the second polaroid 41, and circle is converted to after the second wave plate 42
Polarised light, which, which runs into, is reflected in this after light source and is converted to P polarization light by the second wave plate 42, further by second
Polaroid 41 absorbs.
In above-mentioned each embodiment, as shown in fig. 6, the optical system 100 can also include the 5th photo structure 5, this
Five photo structures 5 can be used for correcting and homogenize the emergent ray B from light source 201, to improve image quality.Wherein, this
Five photo structures 5 can include field lens, which can be formed by monolithic or multi-disc lens combination, and the disclosure does not carry out this
Limitation.
Based on the technical solution in the disclosure, the light source 201 of augmented reality glasses 200 can be built-in display, this is interior
Putting display and the first photo structure 1, the second photo structure 2, the 3rd photo structure 3, the 4th photo structure 4 and the 5th photo structure 5 can be with
It is packaged in frame, further, built-in display can be located at the focal plane of optical system 100, so that user can be with
Watch the imaging positioned at infinite point；Alternatively, the built-in display can also be located within focal plane, so that user can see
See the imaging at pre-determined distance, which can be designed according to the actual requirements, such as 1m, 2m etc., this public affairs
Open and limited not to this.Wherein, the first photo structure 1, the second photo structure 2, the 3rd photo structure 3, the 4th photo structure 4 and
Eyeglass in five photo structures 5 can be that resin lens can also be glass lens；And between the curvature of eyeglass, adjacent structure between
Gauge can be designed from and in the parameter such as angle of inclination of the structure of heeling condition according to actual purpose, the disclosure
To this and it is not limited.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be appreciated that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by appended claim.
Claims (15)
1. a kind of optical system, it is characterised in that applied to augmented reality glasses, the optical system includes matched first
Photo structure, the second photo structure and the 3rd photo structure；
The emergent ray of the light source transmitting of the augmented reality glasses is isolated the polarization of the first kind by first photo structure
Light, the polarised light of the first kind are synthesized the polarised light of the 3rd type by second photo structure, the 3rd type
Polarised light is synthesized the polarised light of Second Type, second class after the 3rd photo structure reflection by second photo structure
The polarised light of type is emitted through first photo structure；
Ambient light isolates the second class through after the 3rd photo structure and second photo structure by first photo structure
The polarised light of type, the polarised light of the Second Type are emitted through first photo structure；
The polarised light of the Second Type and the polarised light of the first kind are the orthogonal linearly polarized light in polarization direction.
2. optical system according to claim 1, it is characterised in that the polarised light of the Second Type and the first kind
When either one in the polarised light of type is P polarization light, the polarised light of the Second Type with the polarised light of the first kind
The opposing party be S-polarization light.
3. optical system according to claim 1, it is characterised in that the polarised light of the 3rd type includes circular polarization
Light.
4. optical system according to claim 1, it is characterised in that first photo structure include the first optical flat with
And the reflection of polarization film on first optical flat, the reflection of polarization film are used for the polarization for reflecting the first kind
The polarised light of light and the transmission Second Type.
5. optical system according to claim 4, it is characterised in that first photo structure further includes absorption described first
First polaroid of the polarised light of type, first polaroid is relative to the reflection of polarization film close to wearer.
6. optical system according to claim 1, it is characterised in that second photo structure include the second optical flat with
And the first wave plate on second optical flat, first wave plate are used to be isolated by first photo structure
The polarised light of the first kind synthesizes the polarised light of the 3rd type.
7. optical system according to claim 6, it is characterised in that first wave plate includes quarter-wave plate.
8. optical system according to claim 1, it is characterised in that the 3rd photo structure include the 3rd optical flat with
And the optical thin film on the 3rd optical flat, the optical thin film is used to reflect and transmitted ray.
9. optical system according to claim 1, it is characterised in that further include the 4th photo structure, the 4th photo structure
Include the second wave plate and the second polaroid of stacking arrangement, second wave plate is set close to the light source；
Wherein, second polaroid is used for the polarised light for absorbing the Second Type, and second wave plate is used for will be through described
The polarised light of the first kind of second polarizer transmission is converted into the polarised light of Second Type, with by second polaroid
Absorb.
10. optical system according to claim 9, it is characterised in that second wave plate includes quarter-wave plate.
11. optical system according to claim 9, it is characterised in that the 4th photo structure is located on the light source.
12. optical system according to claim 1, it is characterised in that further include the 5th photo structure, the 5th photo structure
For correcting and homogenizing the emergent ray from the light source.
13. optical system according to claim 12, it is characterised in that the 5th photo structure includes field lens.
A kind of 14. augmented reality glasses, it is characterised in that the light including display and as any one of claim 1-13
System.
15. augmented reality glasses according to claim 14, it is characterised in that the display is used to launch the outgoing
Light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373864.3U CN207281388U (en) | 2017-10-23 | 2017-10-23 | Optical system and augmented reality glasses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373864.3U CN207281388U (en) | 2017-10-23 | 2017-10-23 | Optical system and augmented reality glasses |
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| CN207281388U true CN207281388U (en) | 2018-04-27 |
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| CN201721373864.3U Active CN207281388U (en) | 2017-10-23 | 2017-10-23 | Optical system and augmented reality glasses |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589546A (en) * | 2017-10-23 | 2018-01-16 | 北京小米移动软件有限公司 | Optical system and augmented reality glasses |
| CN114114696A (en) * | 2020-08-28 | 2022-03-01 | 佳能株式会社 | Observation device |
| WO2023010723A1 (en) * | 2021-08-04 | 2023-02-09 | 歌尔光学科技有限公司 | Optical system and head mount display |
-
2017
- 2017-10-23 CN CN201721373864.3U patent/CN207281388U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589546A (en) * | 2017-10-23 | 2018-01-16 | 北京小米移动软件有限公司 | Optical system and augmented reality glasses |
| CN107589546B (en) * | 2017-10-23 | 2024-05-24 | 北京小米移动软件有限公司 | Optical system and augmented reality glasses |
| CN114114696A (en) * | 2020-08-28 | 2022-03-01 | 佳能株式会社 | Observation device |
| WO2023010723A1 (en) * | 2021-08-04 | 2023-02-09 | 歌尔光学科技有限公司 | Optical system and head mount display |
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