CN109188692A - Optical system and wear display equipment - Google Patents
Optical system and wear display equipment Download PDFInfo
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- CN109188692A CN109188692A CN201811108828.3A CN201811108828A CN109188692A CN 109188692 A CN109188692 A CN 109188692A CN 201811108828 A CN201811108828 A CN 201811108828A CN 109188692 A CN109188692 A CN 109188692A
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- reflection
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- lens group
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
This application provides a kind of optical systems and one kind to wear display equipment, which includes the first lens group, the first reflection of polarization prism group, catadioptric microscope group and the second lens group.First lens group transmits the first incidence surface of incident ray to the first reflection of polarization prism group.First incidence surface transmits the light from the first lens group to the first reflection of polarization face of the first reflection of polarization prism group.The focal power reflecting surface of the light from the first incidence surface to catadioptric microscope group is reflected in first reflection of polarization face.Light of the focal power reflective surface from the first reflection of polarization face to the first reflection of polarization prism group the second incidence surface.Second incidence surface transmits the third incidence surface of light-emitting surface of the light from focal power reflecting surface through the first reflection of polarization prism group to the second lens group.Third incidence surface transmits the light-emitting surface of the light from the second incidence surface to the second lens group.Intermediate image plane is formed on the light path before focal power reflecting surface.The visual field of the application increase optical system.
Description
Technical field
The invention relates to augmented reality fields more particularly to a kind of optical system and a kind of wear-type to show
Equipment.
Background technique
Optical system refers to the system that various optical elements combine formation in a certain order, commonly used to be imaged or carry out light
Information processing is learned, is widely used in various electronic equipments, such as based on (Augmented Reality, augmented reality) AR
Technology wears display equipment.
Currently based on the virtual image that shows of display of AR technology worn in display equipment need through optical system into
It is transferred to decoupling corresponding with position of human eye position after row optimization and modulation, by folded with the real world images in acquisition external environment
After adding from the decoupling position by AR image projection to user eye in.It is worn on user's head due to wearing display equipment, in order to subtract
Light user's head pressure, densification, lightweight are to wear display equipment to become Demand Design direction.
In the prior art, applied to wear display equipment in optical system usually by least one transmission and/or reflected light
Element composition is learned, realizes the optimization and modulation of light.But it is difficult to obtain due to being limited by display sizes and optical system size
Biggish visual field.
Summary of the invention
The embodiment of the present application provides a kind of optical system and one kind wears display equipment, to increase the view of optical system
?.
This application provides a kind of optical systems, comprising: the first lens group, the first reflection of polarization prism group, catadioptric mirror
Group and the second lens group；Wherein, first lens group, the catadioptric microscope group and second lens group are divided into described the
Three sides of one reflection of polarization prism group, and second lens group is oppositely arranged with the catadioptric microscope group；
First lens group, for transmiting at least partly incident ray to the first of the first reflection of polarization prism group
Incidence surface；
First incidence surface, for transmiting the light at least partially from first lens group to first polarization
First reflection of polarization face of reflecting prism group；
The first reflection of polarization face, for reflecting the light at least partially from first incidence surface to described catadioptric
Penetrate the focal power reflecting surface of microscope group；
The focal power reflecting surface, for reflecting the light at least partially from the first reflection of polarization face to described
Second incidence surface of one reflection of polarization prism group；
Second incidence surface, for transmiting the light at least partially from the focal power reflecting surface through described first partially
Shake reflecting prism group light-emitting surface to second lens group third incidence surface；
The third incidence surface, for transmiting the light at least partially from second incidence surface to second lens
The light-emitting surface of group；
Wherein, intermediate image plane is formed on the light path before the focal power reflecting surface.
Preferably, the first reflection of polarization prism group includes the first reflection of polarization prism and first reflection of polarization
Second reflection of polarization prism of prism cementing and wave plate with the first reflection of polarization prism cementing；Wherein, described first partially
Vibration reflecting prism includes first incidence surface, the first reflection of polarization face and second incidence surface, and the wave plate with
Second incidence surface is glued；
At least partly described incident ray is transmitted into the first reflection of polarization prism by first incidence surface；
The first reflection of polarization face will reflex to described second at least partially from the light of first incidence surface and enter
Smooth surface；
At least partly described incident ray reflected by the first reflection of polarization face is transmitted through by second incidence surface
The wave plate；
At least partly described incident ray is transmitted through the focal power reflecting surface by the wave plate, and anti-by the focal power
The face of penetrating reflexes to the wave plate；
The wave plate is by at least partly described incident ray from the focal power reflecting surface through second incidence surface
And the first reflection of polarization face is transmitted into the second reflection of polarization prism；
The second reflection of polarization prism is by at least partly described incident ray through the second reflection of polarization prism
Light-emitting surface be transmitted through the third incidence surface of second lens group.
It preferably, further include the second reflection of polarization prism group；Wherein, the second reflection of polarization prism group and described first
Reflection of polarization prism group is opposite to be set to first lens group two sides；
Second reflection of polarization face of the second reflection of polarization prism group is for reflecting at least partly described incident ray
To first lens group.
Preferably, the second reflection of polarization prism group include third reflection of polarization prism and with the third reflection of polarization
4th reflection of polarization prism of prism cementing；Wherein, the third reflection of polarization prism includes the second reflection of polarization face；
The incidence surface of the third reflection of polarization prism transmits the incident ray and enters the third reflection of polarization prism；
It the second reflection of polarization face will be at least partially from the incident light of the incidence surface of the third reflection of polarization prism
Line reflection to first lens group incidence surface.
It preferably, further include being set between first lens group and the first reflection of polarization prism group, by least one
The third lens group of a lens composition；Wherein, the third lens group has negative focal power；
The third lens group is used to receive at least partly described incident ray from first lens group transmission, and
At least partly described incident ray is transmitted through to the first incidence surface of the first reflection of polarization prism group；
Wherein, the intermediate image plane is formed on the light path before the third lens group.
This application provides one kind to wear display equipment, and the display equipment of wearing includes shell, is set on the shell
The first aperture and the second aperture；The display equipment of wearing further includes the first optical module and the second optical module, the light
Component is learned to include flat plate eyeglass and be arranged in the intracorporal optical system as described in any one of the above embodiments of the shell；Described
One aperture and first optical module correspondence, second aperture and second optical module are corresponding；Wherein,
Emergent ray from the optical system is incident to described flat through first aperture and second aperture
Face flat lenses；
The flat plate eyeglass be used to be coupled into the second lens group outgoing of the optical system it is at least partly described enter
Penetrate light, and by at least partly described incident ray at the position of corresponding human eye decoupling.
Preferably, first optical module and second optical module for respectively corresponding left eye and right eye setting
It is symmetrical about center line；
First lens group of the optical system of any optical module is disposed far from the center line side；The optics
Second lens group of system is provided close to the center line side.
It preferably, further include the first display system for being arranged in the shell, respectively corresponding first optical module
And the second display system of corresponding second optical module；
The display system is for generating the incident ray.
Preferably, the display system includes the first display, and the optical system is arranged in first display
Second reflection of polarization prism group side；
Or first display be arranged in the optical system the first lens group and the first reflection of polarization prism
The opposite side of group.
Preferably, the display system includes second display and light fixture, and the light fixture and described second show
Show that device is divided into the second reflection of polarization prism group two sides of the optical system.
Compared with prior art, the application can be obtained including following technical effect:
This application provides a kind of optical system and a kind of head-mounted display apparatus, the optical system includes: first saturating
Microscope group, the first reflection of polarization prism group, catadioptric microscope group and the second lens group；Wherein, first lens group, the catadioptric
Microscope group and second lens group three sides that be divided into the first reflection of polarization prism group adjacent, and second lens group with
The catadioptric microscope group is oppositely arranged.First lens group, for transmission at least partly incident ray to first polarization
First incidence surface of reflecting prism group.First incidence surface, for transmiting the light at least partially from first lens group
Line is to the first reflection of polarization face of the first reflection of polarization prism group.The first reflection of polarization face, for reflecting at least portion
Divide the light from first incidence surface to the focal power reflecting surface of the catadioptric microscope group.The focal power reflecting surface is used
Enter light to the second of the first reflection of polarization prism group at least partially from the light in the first reflection of polarization face in reflection
Face.Second incidence surface, it is anti-through first polarization for transmiting the light at least partially from the focal power reflecting surface
The light-emitting surface of prism group is penetrated to the third incidence surface of second lens group.The third incidence surface, for transmiting at least partly
Light from second incidence surface to second lens group light-emitting surface.Wherein, the light before focal power reflecting surface
Intermediate image plane is formed in journey.The application by the optical system make at least partly incident ray realize in the light path it is secondary at
Picture, by intermediate image make in the form of angle pencil of ray existing at least partly incident ray generate convergence, avoid system due to wide light
Limitation of the beam to visual field, further increases the field angle of system.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this Shen
Some embodiments please for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of one embodiment of optical system of the embodiment of the present application；
Fig. 2 is a kind of structural schematic diagram of another embodiment of optical system of the embodiment of the present application；
Fig. 3 (a)-Fig. 3 (b) is a kind of structural representation of one embodiment of head-mounted display apparatus of the embodiment of the present application
Figure；
Fig. 4 (a)-Fig. 4 (h) is that a kind of structure of another embodiment of head-mounted display apparatus of the embodiment of the present application is shown
It is intended to.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described.
Optical system provided by the present application can be applied to current AR (augmented reality, Augmented Reality) technology
Field is applicable in but is not limited to wear in display equipment.
Technical scheme is described in detail below in conjunction with attached drawing.
Fig. 1 is a kind of structural schematic diagram of one embodiment of optical system of the embodiment of the present application.The optical system can
To include: the first lens group 101, the first reflection of polarization prism group 102, catadioptric microscope group 103 and the second lens group 104.
Wherein, the first lens group 101, catadioptric microscope group 103 and the second lens group 104 are divided into the first reflection of polarization prism
Three sides of group 102, and the second lens group 104 is oppositely arranged with catadioptric microscope group 103.
In practical application, which can apply but be not limited to wear in display equipment, be particularly suitable for AR imaging
Wear display equipment.It is more compact in order to make this wear display equipment more lightweight, structure.The incident ray can be by showing
Show that device generates or other display systems generate.Wherein, display can be backlight type LCOS (Liquid Crystal On
Silicon, liquid crystal cover silicon) display, LCD (Liquid Crystal Display, liquid crystal display), Micro-OLED
(Organic Light-Emitting Diode, miniature Organic Light Emitting Diode) or other miniature displays.
In practical application, incident light can be polarised light.Optical system is applicable to no polarization in the embodiment of the present application
Display, be equally applicable to the display of polarizability.The display of no polarization is needed to increase in the light emission side of display
Add a polarizing film, incident ray is modulated to by polarised light by polarizing film.
First lens group 101 enters for transmiting at least partly incident ray to the first of the first reflection of polarization prism group 102
Smooth surface S1.
Optionally, the first lens group 101 is made of at least a piece of lens, every a piece of lens its face types can be flat
Face, spherical surface, aspherical or free form surface, are not specifically limited herein.Wherein, can have per a piece of lens positive focal power or
Negative focal power makes the first lens group 101 integrally have positive focal power.Therefore, the first lens group 101 has light and converges
Poly- effect, thus will in the form of angle pencil of ray existing at least partly incident ray converge, reduce light beam in internal system
Occupy the area of optics significant surface in communication process, it on this basis, can be each in reduction system when carrying out Optical System Design
The size of optical module increases the field range of system, reduces the limitation due to angle pencil of ray to system dimension and visual field.
Incident ray enters the first lens group 101 through the incidence surface S11 of the first lens group 101, and going out through lens group 101
Smooth surface S12 is transmitted through the first incidence surface S1 of the first reflection of polarization prism group 102.
When first lens group 101 includes at least two panels lens, the incidence surface S11 of the first lens group 101 be this first
Incidence surface away from the farthest a piece of lens of the first reflection of polarization prism group 102 in lens group 101, the first lens group 101 go out light
Face S12 is the light-emitting surface S12 away from the nearest a piece of lens of the first reflection of polarization prism group 102 in first lens group 101.
The first incidence surface S1, for transmiting the light at least partially from first lens group 101 to described
First reflection of polarization face S2 of one reflection of polarization prism group 102.
The first reflection of polarization face S2, for reflecting the light at least partially from the first incidence surface S1 to described
The focal power reflecting surface S3 of catadioptric microscope group 103.
The focal power reflecting surface S3, for reflecting the light at least partially from the first reflection of polarization face S2 to institute
State the second incidence surface S4 of the first reflection of polarization prism group 102.
The second incidence surface S4, for transmiting the light at least partially from the focal power reflecting surface S3 through described
The light-emitting surface of one reflection of polarization prism group 102 to second lens group 104 third incidence surface S5.
The third incidence surface S5, for transmiting the light at least partially from the second incidence surface S4 to described second
The light-emitting surface S41 of lens group 104.
Wherein, intermediate image plane M1 is formed on the light path before the focal power reflecting surface S3.
Optionally, the first reflection of polarization prism group 102 includes that the first reflection of polarization prism 1021 and the first polarization are anti-
Penetrate the second glued reflection of polarization prism 1022 of prism 1021 and the wave plate WP glued with the first reflection of polarization prism 1021.First
Reflection of polarization prism 1021 may include the first incidence surface S1, the first reflection of polarization face S2 and the second incidence surface S4, wherein wave plate
The second incidence surface gluing S4 of WP and the first reflection of polarization prism 1021.
At least partly described incident ray is transmitted into the first reflection of polarization prism 1021 by the first incidence surface S4.
The light for being at least partially into the first incidence surface S1 is reflexed to the second incidence surface S4 by the first reflection of polarization face S2.
At least partly described incident ray reflected by the first reflection of polarization face S2 is transmitted through wave plate by the second incidence surface S4
WP。
At least partly described incident ray is transmitted through focal power reflecting surface S3 by wave plate WP, and anti-by focal power reflecting surface S3
It is incident upon wave plate WP.
Wave plate WP polarizes at least partly incident ray from focal power reflecting surface S3 through the second incidence surface S4 and first
Reflecting surface S2 is transmitted into the second reflection of polarization prism 1022.
Light-emitting surface of the second reflection of polarization prism 1022 by least partly incident ray through the second reflection of polarization prism 1022
S22 is transmitted through the third incidence surface S5 of the second lens group 104.
In practical application, the wave plate WP can be quarter-wave plate film, for carrying out phase-modulation to incident ray
So that incident ray generates phase delay, and then change the polarization characteristic of incident ray.
Optionally, catadioptric microscope group 103 can be made of one or more pieces lens, and along the last a piece of lens in light path direction
Rear surface be focal power reflecting surface S3.The focal power reflecting surface S3 has positive focal power, has convergence effect to light.
Optionally, the second lens group 104 can be made of one or more pieces lens, and along first, light path direction lens
Front surface is third incidence surface S5；Along light path direction finally a piece of lens rear surface be second lens group light-emitting surface
S41.The face type of each lens can be plane, spherical surface, aspherical or free form surface etc. as needed in second lens group 104,
It is not specifically limited herein.
Wherein, the second lens group 104 has a positive focal power, and the light-emitting surface S41 of the second lens group 104 will at least partly institute
Incident ray is stated to be emitted in the form of directional light.
In practical application, the first lens group 101, catadioptric microscope group 103 and the second lens group 104 all have positive light focus
Degree has convergence effect to light.Since incident ray focuses after the convergence of the first lens group 101, formation is intermediate to practise physiognomy, and
To the convergence event resolves of incident ray on the light path after intermediate image plane, incident ray is on the light path after intermediate image plane
It is transmitted in the form of diverging light.Therefore, the first reflection of polarization prism 102 for realizing optical path turnover, to introduce catadioptric mirror
Group 103, converges incident ray again through focal power reflecting surface S3, and is further enhanced pair by the second lens group 104
The convergence of incident ray acts on, so that the incident ray of different visual fields of second lens group 104 at emergent pupil is with different angle
The outgoing of directional light form.
According to design requirement, the reflection characteristic of the first reflection of polarization face S2 can be reflection of polarization (preferential selection), can also
Part reflective portion to be no polarization transmits, and face type can be plane, free form surface, spherical surface or aspherical.Focal power
Reflecting surface S3 has certain curvature, and amount of curvature can set according to actual design demand, and face type can be spherical surface, aspherical
Or free form surface etc.；Other each face types in the catadioptric microscope group 103 can be as needed plane, spherical surface, it is aspherical or from
By curved surface, it is not specifically limited herein.
According to the light focus of the first lens group 101 away from difference, at least partly incident ray carries out via the first lens group 101
Convergence formed intermediate image plane can be it is anti-by the first polarization of light-emitting surface transmission of the first lens group 101 at least partly incident ray
It penetrates in the first light path of the first incidence surface S1 of prism 1021, be transmitted through the of the first reflection of polarization face S2 by the first incidence surface S1
It reflexes in the third light path of third incidence surface S4 in two light paths, by the first reflection of polarization face S2 or is transmitted by third incidence surface S4
Any position into the 4th light path of the focal power reflecting surface S3 of catadioptric microscope group 103 is formed.The optical system can make into
It penetrates light and generates intermediate image plane during Systematic Communication, realize the secondary imaging of system.And this feasible system is secondary
The light path of imaging can not only increase system field angle, reduce the region of system optics significant surface, to can get smaller system
System size.
The optical system provided in the embodiment of the present application converges at least partly incident light by the first lens group,
So that at least partly incident ray forms intermediate image plane in systems.It is special that the system is realized by the adjusting of each optical element
Secondary imaging optical path solves and propagates the technical problem that angle pencil of ray causes system field angle limited in system.Simultaneously by catadioptric
The convergence and modulation of microscope group and the second lens group to incident ray are penetrated, so that different visual fields of the optical system at emergent pupil go out
It penetrates light to be emitted in the form of directional light, to meet the needs of optical system realizes parallel light emergence.
Fig. 2 is a kind of structural schematic diagram of another embodiment of optical system of the embodiment of the present application.The optical system
Except including the first lens group 101, the first reflection of polarization prism group 102, catadioptric microscope group 103, the second lens group in Fig. 1 embodiment
It can also include the third lens group 105 except 104.
Wherein, the third lens group 105 is set between the first lens group 101 and the first reflection of polarization prism group 102, by least
One lens composition, has negative focal power.
The third lens group 105 is used to receive at least partly incident ray from first lens group 101 transmission, and will
At least partly incident ray the first incidence surface S1 for being transmitted through the first reflection of polarization prism group 102.
Wherein, the intermediate image plane M1 is formed on the light path before the third lens group 105.
In practical application, the face type of each lens can be plane, spherical surface, aspheric as needed in the third lens group 105
Face or free form surface etc., are not specifically limited herein, and each lens can have positive focal power or negative focal power, so that the
Three lens group 105 is whole to have negative focal power.Therefore, the third lens group 105 has disperse function to incident ray, to make
Centre can formed by any position in the first lens group 101 to the light path between the third lens group 105 by obtaining intermediate image plane
It practises physiognomy.
In the embodiment of the present application, by the third lens group to modulation and the optimization of incident ray, it can be achieved that system light path
Correction, be effectively reduced system difference, improve the image quality of system.
It is applicable to need the display such as LCOS display of independent light distribution in above-described embodiment or does not need independently to match
Display of light such as LCD display, OLED display etc..
Display for not needing independent light distribution can directly emit the incident ray of generation to the first lens group 101
Incidence surface.For needing the display of independent light distribution, then incident light can be just generated after needing light fixture to light the display
Line, display can not directly emit the incident ray of generation to the incidence surface of the first lens group 101 at this time, need to pass through turnover
The light path for the incident ray that display generates, makes incident ray be incident to the incidence surface of the first lens group 101.
Fig. 3 (a)-Fig. 3 (b) is a kind of structural schematic diagram of another embodiment of optical system of the embodiment of the present application.
It includes the first lens group 101, the first reflection of polarization prism group 102, catadioptric mirror in Fig. 1 or Fig. 2 embodiment that the optical system, which is removed,
It can also include the second reflection of polarization prism group 106 except the 103, second lens group 104 of group and the third lens group 105.
Wherein, the second reflection of polarization prism group 106 and the first reflection of polarization prism group 102 are opposite set on the first lens group
101 two sides.
Second reflection of polarization face S6 of the second reflection of polarization prism group 106 will be for that at least partly will reflex to the by incident ray
One lens group 101.
Optionally, the second reflection of polarization prism group 106 include third reflection of polarization prism 1061 and with third reflection of polarization
The 4th glued reflection of polarization prism 1062 of prism 1061；Wherein, third reflection of polarization prism 1061 includes the second reflection of polarization
Face S6.
The incidence surface S61 transmission incident ray of third reflection of polarization prism 1061 enters in third reflection of polarization prism
1061。
Second reflection of polarization face S6 will be at least partially from the incident light of the incidence surface S61 of third reflection of polarization prism 1061
Line reflection to the first lens group 101 incidence surface S11.
Second reflection of polarization prism group 106 passes through the incident ray that display generates for realizing the turnover to light path
Second reflection of polarization face S6 reflexes to the incidence surface S11 of the first lens group 101.
It can be understood that the embodiment of the present application is not limited to only be applicable in the display for needing light distribution or display system, for
Should not light distribution display or display system can equally be applicable in.
In practical application, the reflection characteristic of the second reflection of polarization face S6 can be reflection of polarization (preferential selection), can also be with
It is the part reflective portion transmission of no polarization, face type can be plane, free form surface, spherical surface or aspherical, not make herein
It is specific to limit.
In the embodiment of the present application, the turnover to light path is realized by the second reflection of polarization prism group, can be further decreased
The distance between display system and optical system to obtain the optical system of adaptation smaller szie display system, and combine the
One lens group, the second reflection of polarization prism group, the optimization of catadioptric microscope group, the second lens group and the third lens group to incident ray
And modulation, it realizes the secondary imaging of system, system dimension can also be reduced while the field angle for greatly improving system, improve
Image quality.
Fig. 4 (a)-Fig. 4 (h) is that a kind of structure of one embodiment for wearing display equipment provided by the embodiments of the present application is shown
It is intended to.
As shown in Fig. 4 (a), it includes shell B, the first aperture V1 on the shell B and that this, which wears display equipment,
Two aperture V2；The display equipment of wearing further includes the first optical module and the second optical module, and the optical module includes flat
Face flat lenses W and the intracorporal optical system as described in any embodiment of Fig. 1-Fig. 3 of the shell is set (in figure not
It shows).
The first aperture V1 and first optical module correspondence, the second aperture V2 and second optical module
It is corresponding.Wherein, the emergent ray from the optical system is incident to through the first aperture V1 and the second aperture V2
The flat plate eyeglass W.
The flat plate eyeglass W is used to be coupled into at least partly institute of the second lens group 104 outgoing of the optical system
State incident ray, and by at least partly described incident ray at the position of corresponding human eye decoupling.
Optionally, in certain embodiments, the first optics group for respectively corresponding right eye E1 and left eye E2 setting
Part and second optical module are symmetrical about center line.
First lens group 101 of the optical system of any optical module is disposed far from the center line side；The optics
Second lens group 104 of system is provided close to the center line side.
Wherein, a flat plate eyeglass W can be shared in the first optical module and the second optical module, at this time the plane
Two pairs of light are set on flat lenses W and are coupled into position and light decoupling position.Wherein, a pair of of light is coupled into position and light decoupling
Position corresponds to user's left eye, and another pair light is coupled into position and light decoupling position and corresponds to user's right eye, and about center line pair
Claim setting.
Optionally, due among human eye the corresponding flat plate eyeglass W in position there is no the transmission of effective light,
Flat plate eyeglass W can be divided to is two, and the first optical module includes flat plate eyeglass W1, and the second optical module includes flat
Face flat lenses W2, and flat plate eyeglass W1 and plane flat lenses W2 be about center line symmetrical setting, so as to further
Reduce the volume of optical module.
The center line is a virtual line, for embodying two light worn display equipment and respectively correspond left eye and right eye
Learn the symmetrical configuration relationship of component.When user wears this and wears display equipment, which is located at two centres.
Optionally, in the horizontal direction, the flat plate eyeglass W can be located at according to the opening direction of the shell B
, can also be positioned at shell B far from human eye side between shell B and human eye, it at this time can also be in flat plate eyeglass W corresponding housing
Protective cover, the interference to avoid ambient to the incident ray in optical system is arranged in the position with pores of B.
In practical application, this, which wears display equipment, can also be intelligent glasses, and shell B, which can be divided into, at this time respectively corresponds the right side
The shell B2 of the shell B1 of eye and corresponding left eye.At this point, the flat plate eyeglass W in optical module can also be divided into, it is right respectively
Answer the flat plate eyeglass W1 of right eye and the flat plate eyeglass W2 of corresponding left eye.
As shown in Fig. 4 (b), the shell B1 of right eye E1, the shell of the first optical module and corresponding left eye E2 are respectively corresponded to
B2 and the second optical module.Wherein, the first optical module includes flat plate eyeglass W1 and the optical system in shell B1
System (is not shown) in figure；Second optical module includes flat plate eyeglass W2 and the optical system in shell B2 (in figure
It does not show).Wherein, two optical modules for respectively corresponding right eye E1 and left eye E2 setting are symmetrical about center line.
Optionally, the flat plate eyeglass W may include diffraction waveguide eyeglass or geometry waveguide eyeglass, does not do have herein
Body limits.Flat plate eyeglass W is coupled into position and light decoupling position with light and is respectively used to the flat of optical system exit
Row light is coupled into flat plate eyeglass W, and will propagate to the light decoupling of light decoupling position.It is worn when user wears this
When formula equipment, the position of the corresponding human eye in light decoupling position is oppositely arranged, so that the light of flat plate eyeglass W decoupling
Line projection is into human eye.
Optionally, flat plate eyeglass W includes with the shell B first part P1 being oppositely arranged and from described first
The second part P2 for dividing P1 to extend pre-determined distance.
Wherein, the light of the flat plate eyeglass W is coupled into position and is located at the first part P1, and corresponding housing B
Position of opening；The light decoupling position of the flat plate eyeglass W is located at second part P2.
For wearing display equipment based on AR, flat plate eyeglass W also needs to receive from three-dimensional space real scene
The ambient light of generation.For wearing display equipment and be intelligent glasses, the shell B points of shell B1 for corresponding first optical module
With the shell B2 of corresponding second optical module.Wherein, the first optical module of corresponding user's right eye E1 includes flat plate eyeglass
Shown in W1 and shell B1 positional relationship such as Fig. 4 (c), looked by the direction user right eye E1, first of flat plate eyeglass W1
P1 and shell B1 is divided to be oppositely arranged, and light is coupled into the first position aperture V1 of position R1 corresponding housing B1 with receiving optics
The second lens group 104 outgoing parallel rays.The second part P2 of flat plate eyeglass W1 is from first part P1 to application
The family position right eye E1 extends pre-determined distance, so that the light decoupling position decoupling of P2 in the second part of flat plate eyeglass W1
Light can be incident in user's right eye.Wherein, the light decoupling position T1 of flat plate eyeglass W1 is provided close to the one of human eye
Side, light are coupled into the side that position R1 is provided close to the first position aperture V1 of shell B1.Second of flat plate eyeglass W1
Divide P2 to can be also used for receiving three-dimensional space real scene generation environment light, and at least partly will be transmitted through human eye by ambient light
In, so that virtual image and real scene are fused together imaging, so that AR image is presented to the user.
From the foregoing, it will be observed that the first part P1 and shell B1 of flat plate eyeglass W1 are correspondingly arranged, but due to flat plate mirror
The second part P2 of piece W1 also needs to receive ambient light.In order to not influence the viewing experience of user, user wear this wear it is aobvious
When showing equipment, need to meet the visual angle that the position shell B1 does not block human eye.Therefore, flat plate eyeglass W1 second part prolongs
The pre-determined distance stretched can be set according to human eye angular field of view, be not specifically limited herein.The position shell B1 can be positioned at people
The position or the position below human eye of eye top, in actual use, in order to convenient to wear, shell can be located above human eye and not
Block the position at human eye visual angle.As shown in Fig. 4 (d), for the side view of the first optical module of corresponding user's right eye E1, in the figure
Shell B1 is located above user's right eye E1, the dotted line expression maximum angular field of view of right eye E1, and second of flat plate eyeglass W1
The pre-determined distance for dividing P2 to extend can cover human eye visual angle and to be correspondingly arranged with the first part P1 of flat plate eyeglass W1
It is advisable when human eye top position does not block the visual angle of human eye where shell B1.
It optionally, in certain embodiments, can also include being arranged in the shell B, respectively corresponding first light
Learn the first display system of component and the second display system of corresponding second optical module.
The display system is for generating the incident ray.
Display system generate incident ray by optical system optimize and modulate after, by the incident ray of different visual fields with
The directional light form of different angle is emitted, and is coupled into flat plate eyeglass W by the parallel rays of optical system exit, flat in plane
It is propagated in the form of being totally reflected in plate eyeglass W and in the position decoupling of corresponding human eye, to projecting virtual image into human eye.
Optionally, in certain embodiments, display system may include the first display D1, and the first display D1 can be set
It sets and is as shown in Fig. 4 (e) in the first lens group 101 of optical system side opposite with the first reflection of polarization prism group 102
The top view of one embodiment of the first optical module of corresponding right eye E1, the first display D1 are set to first with optical system
The incidence surface S11 of lens group 101 adjacent side.Incident ray the entering through the first lens group 101 that first display D1 is generated
Smooth surface S11 enters first lens group 101.
Or first display D1 can be set in 106 side of the second reflection of polarization prism group of the optical system, such as Fig. 4
(f) shown in, for the top view of another embodiment of the first optical module of corresponding right eye E1.Wherein, the first display D1 is set
It sets in the side adjacent with the incidence surface S61 of third reflection of polarization prism 1061.The incident ray warp that first display D1 is generated
The incidence surface S61 of third reflection of polarization prism 1061 is transmitted through the second reflection of polarization face S6.
Optionally, first display D1 can be LCD display, OLED display, Micro-OLED etc., for generating
Incident ray.
Optionally, in certain embodiments, the display system may include second display D2 and light fixture Q, institute
State 106 two sides of the second reflection of polarization prism group that the light fixture Q and second display D2 is divided into the optical system.
Wherein, light fixture Q can be by the light fixture of one or more LED arbitrary shape constituted, can also be with
The light fixture that can be used for other lighting devices composition of illumination, is not specifically limited herein.
The natural light of light fixture Q outgoing is irradiated to second display after the second reflection of polarization prism group 106
D2 is upper to light the second display D2.
Since second display D2 is the display based on reflective-mode, for example, it may be LCOS display.It therefore can not
It is independent to shine, it is therefore desirable to the second display to independent light distribution is carried out, can will to be produced by emitting the light fixture of natural light
Raw natural lighting is incident upon on second display D2, the principle of reflection based on second display D2 light the second display from
And generate incident ray.
In practical application, incident light can be polarised light.Optical system is applicable to no polarization in the embodiment of the present application
Display, be equally applicable to the display of polarizability.For no polarization display such as Micro-OLED when, need
Increase a polarizing film between display and third reflection of polarization prism 1061 or the first lens group 101, realizes that incident ray is
Polarised light.
As shown in Fig. 4 (g), for the top view of another embodiment of the first optical module of corresponding right eye.Described second
Display D2 can be the adjacent side incidence surface S61 for being set to the third reflection of polarization prism 1061 of the optical system,
The light fixture Q is set to the adjacent side incidence surface S62 of the 4th reflection of polarization prism 1062, wherein the third
The incidence surface S61 and the incidence surface S62 of the 4th reflection of polarization prism 1062 of reflection of polarization prism 1061 are oppositely arranged.
The incidence surface S62 of 4th reflection of polarization prism 1062, at least partly available light for generating light fixture Q
It is transmitted through the second reflection of polarization face S6 of the third reflection of polarization prism 1061.At least partially from the second reflection of polarization face S6
Available light be transmitted through second display D2 through the incidence surface of third reflection of polarization prism 1061 and light the second display
D2, so that second display D2 generates incident ray.
Fig. 4 (h) is the structure of another embodiment of the first optical module of corresponding right eye provided by the embodiments of the present application
Schematic diagram, with the first optical module shown in Fig. 4 (g) the difference is that increasing the third lens group 105 in optical system,
So that the centre in Fig. 4 (h) first optical module is practised physiognomy, M1 is in the first lens group 101 between the third lens group 105
It is formed on light path, and can be higher with image quality compared with the first optical module shown in Fig. 4 (g).It is understood that third is saturating
Microscope group 105 is added in the optical system of the first optical module shown in Fig. 4 (e) and figure (f), equally may be implemented, herein no longer
It repeats.
Since the second optical module and the first optical module of corresponding right eye E1 of corresponding left eye E2 are symmetrical about center line,
Therefore, the second optical module of corresponding left eye may be implemented symmetrical with the first optical module shown in above-mentioned Fig. 4 (e)-Fig. 4 (f)
Structure, details are not described herein.
Above-mentioned Fig. 4 (e)-Fig. 4 (h) is provided in schematic diagram, and shell B and flat plate eyeglass W are simultaneously not completely shown, only shows
The part of corresponding right eye E1.Certainly, for intelligent glasses, corresponding right eye E1's can also be shell B1 and flat plate mirror
Piece B1 is equally applicable, is not specifically limited herein.
It is understood that any combination may be implemented in implementation above mode in the embodiment of the present application, do not scheme one by one herein
Show and enumerate, structure design can be carried out according to the specific design requirement of the headset equipment and is not specifically limited herein.
The present embodiment protects one kind to wear display equipment, and it includes respectively by shell and by optics that this, which wears display equipment,
System and plane flat lenses and display system constitute two about the symmetrical optical module in center.Due to shell, plane
The size of flat lenses and display system is adapted to optical system, the secondary imaging optical system based on above-mentioned realization system
System can also reduce while not only greatly improving the field angle of system, improve system imaging quality and wear display equipment size,
The volume and weight for wearing display equipment can be further decreased, more compactization is obtained, it is light-weighted to wear display equipment.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution spirit and
Range.
This application discloses A1, a kind of optical system, comprising: the first lens group, the first reflection of polarization prism group, catadioptric
Microscope group and the second lens group；Wherein, first lens group, the catadioptric microscope group and second lens group are divided into described
Three sides of the first polarization rib reflection microscope group, and second lens group is oppositely arranged with the catadioptric microscope group；
First lens group, for transmiting at least partly incident ray to the first of the first reflection of polarization prism group
Incidence surface；
First incidence surface, for transmiting the light at least partially from first lens group to first polarization
First reflection of polarization face of reflecting prism group；
The first reflection of polarization face, for reflecting the light at least partially from first incidence surface to described catadioptric
Penetrate the focal power reflecting surface of microscope group；
The focal power reflecting surface, for reflecting the light at least partially from the first reflection of polarization face to described
Second incidence surface of one reflection of polarization prism group；
Second incidence surface, for transmiting the light at least partially from the focal power reflecting surface through described first partially
Shake reflecting prism group light-emitting surface to second lens group third incidence surface；
The third incidence surface, for transmiting the light at least partially from second incidence surface to second lens
The light-emitting surface of group；
Wherein, intermediate image plane is formed on the light path before the focal power reflecting surface.
A2, the optical system according to claim A1, the first reflection of polarization prism group include that the first polarization is anti-
Penetrate prism, with the second reflection of polarization prism of the first reflection of polarization prism cementing and with the first reflection of polarization prism glue
The wave plate of conjunction；Wherein, the first reflection of polarization prism includes first incidence surface, the first reflection of polarization face and described
Second incidence surface, and the wave plate and second incidence surface are glued；
At least partly described incident ray is transmitted into the first reflection of polarization prism by first incidence surface；
The first reflection of polarization face will reflex to described second at least partially from the light of first incidence surface and enter
Smooth surface；
At least partly described incident ray reflected by the first reflection of polarization face is transmitted through by second incidence surface
The wave plate；
At least partly described incident ray is transmitted through the focal power reflecting surface by the wave plate, and anti-by the focal power
The face of penetrating reflexes to the wave plate；
The wave plate is by at least partly described incident ray from the focal power reflecting surface through second incidence surface
And the first reflection of polarization face is transmitted into the second reflection of polarization prism；
The second reflection of polarization prism is by at least partly described incident ray through the second reflection of polarization prism
Light-emitting surface be transmitted through the third incidence surface of second lens group.
A3, the optical system according to claim A1 further include the second reflection of polarization prism group；Wherein, described
Two reflection of polarization prism groups are opposite with the first reflection of polarization prism group to be set to first lens group two sides；
Second reflection of polarization face of the second reflection of polarization prism group is for reflecting at least partly described incident ray
To first lens group.
A4, the optical system according to claim A3, the second reflection of polarization prism group include that third polarization is anti-
Penetrate prism and the 4th reflection of polarization prism with the third reflection of polarization prism cementing；Wherein, the third reflection of polarization rib
Mirror includes the second reflection of polarization face；
The incidence surface of the third reflection of polarization prism transmits the incident ray and enters the third reflection of polarization prism；
It the second reflection of polarization face will be at least partially from the incident light of the incidence surface of the third reflection of polarization prism
Line reflection to first lens group incidence surface.
A5, the optical system according to claim A1, first lens group are made of at least a piece of lens, have
Positive focal power.
A6, the optical system according to claim A1, the catadioptric microscope group are made of one or more pieces lens, and
Along light path direction finally a piece of lens rear surface be focal power reflecting surface.
A7, the optical system according to claim A1, second lens group are made of one or more pieces lens, and
Front surface along first lens in light path direction is the third incidence surface；Rear surface along the last a piece of lens in light path direction is
The light-emitting surface of second lens group；
Wherein, second lens group has a positive focal power, and the light-emitting surface of second lens group will at least partly institute
Incident ray is stated to be emitted in the form of directional light.
A8, the optical system according to claim A1 further include being set to first lens group and described first partially
Between reflecting prism group of shaking, the third lens group that is made of at least one lens；Wherein, the third lens group has negative light
Focal power；
The third lens group is used to receive at least partly described incident ray from first lens group transmission, and
At least partly described incident ray is transmitted through to the first incidence surface of the first reflection of polarization prism group；
Wherein, the intermediate image plane is formed on the light path before the third lens group.
B9, one kind wear display equipment, and the display equipment of wearing includes shell, the first aperture on the shell
With the second aperture；The display equipment of wearing further includes the first optical module and the second optical module, and the optical module includes
Flat plate eyeglass and setting are intracorporal such as the described in any item optical systems of claim 1-8 in the shell；Described first
Aperture and first optical module correspondence, second aperture and second optical module are corresponding；Wherein,
Emergent ray from the optical system is incident to described flat through first aperture and second aperture
Face flat lenses；
The flat plate eyeglass be used to be coupled into the second lens group outgoing of the optical system it is at least partly described enter
Penetrate light, and by at least partly described incident ray at the position of corresponding human eye decoupling.
B10, the equipment according to claim B9, first optics for respectively corresponding left eye and right eye setting
Component and second optical module are symmetrical about center line；
First lens group of the optical system of any optical module is disposed far from the center line side；The optics
Second lens group of system is provided close to the center line side.
B11, the equipment according to claim B10, the flat plate eyeglass include being oppositely arranged with the shell
First part and from the first part extend pre-determined distance second part；
Wherein, the light of the flat plate eyeglass is coupled into position and is located at the first part, and the corresponding shell
Position of opening；The light decoupling position of the flat plate eyeglass is located at the second part.
B12, the equipment according to claim B9 further include being arranged in the shell, respectively corresponding described first
Second display system of the first display system of optical module and corresponding second optical module；
The display system is for generating the incident ray.
B13, the equipment according to claim B12, the display system include the first display, first display
The second reflection of polarization prism group side of the optical system is arranged in device；
Or first display be arranged in the optical system the first lens group and the first reflection of polarization prism
The opposite side of group.
B14, the equipment according to claim B12, the display system include second display and light fixture, institute
It states light fixture and the second display is divided into the second reflection of polarization prism group two sides of the optical system.
B15, the equipment according to claim B9, the flat plate eyeglass include diffraction waveguide eyeglass or geometry wave
Lead eyeglass.
Claims (10)
1. a kind of optical system characterized by comprising the first lens group, the first reflection of polarization prism group, catadioptric microscope group and
Second lens group；Wherein, first lens group, the catadioptric microscope group and second lens group are divided into described first partially
Three sides of reflecting prism group of shaking, and second lens group is oppositely arranged with the catadioptric microscope group；
First lens group enters light to the first of the first reflection of polarization prism group for transmiting at least partly incident ray
Face；
First incidence surface, for transmiting the light at least partially from first lens group to first reflection of polarization
First reflection of polarization face of prism group；
The first reflection of polarization face, for reflecting the light at least partially from first incidence surface to the catadioptric mirror
The focal power reflecting surface of group；
The focal power reflecting surface, for reflecting the light at least partially from the first reflection of polarization face to described first partially
Second incidence surface of reflecting prism group of shaking；
Second incidence surface, it is anti-through first polarization for transmiting the light at least partially from the focal power reflecting surface
The light-emitting surface of prism group is penetrated to the third incidence surface of second lens group；
The third incidence surface, for transmiting the light at least partially from second incidence surface to second lens group
Light-emitting surface；
Wherein, intermediate image plane is formed on the light path before the focal power reflecting surface.
2. optical system according to claim 1, which is characterized in that the first reflection of polarization prism group includes first inclined
Shake reflecting prism, with the second reflection of polarization prism of the first reflection of polarization prism cementing and with the first reflection of polarization rib
The wave plate of mirror gluing；Wherein, the first reflection of polarization prism include first incidence surface, the first reflection of polarization face and
Second incidence surface, and the wave plate and second incidence surface are glued；
At least partly described incident ray is transmitted into the first reflection of polarization prism by first incidence surface；
The first reflection of polarization face will reflex to second incidence surface at least partially from the light of first incidence surface；
At least partly described incident ray reflected by the first reflection of polarization face is transmitted through described by second incidence surface
Wave plate；
At least partly described incident ray is transmitted through the focal power reflecting surface by the wave plate, and by the focal power reflecting surface
Reflex to the wave plate；
The wave plate is by at least partly described incident ray from the focal power reflecting surface through second incidence surface and institute
It states the first reflection of polarization face and is transmitted into the second reflection of polarization prism；
The second reflection of polarization prism going out through the second reflection of polarization prism by at least partly described incident ray
Smooth surface is transmitted through the third incidence surface of second lens group.
3. optical system according to claim 1, which is characterized in that further include the second reflection of polarization prism group；Wherein, institute
State that the second reflection of polarization prism group is opposite with the first reflection of polarization prism group to be set to first lens group two sides；
Second reflection of polarization face of the second reflection of polarization prism group is used at least partly described incident ray reflexing to institute
State the first lens group.
4. optical system according to claim 3, which is characterized in that the second reflection of polarization prism group includes that third is inclined
Shake reflecting prism and the 4th reflection of polarization prism with the third reflection of polarization prism cementing；Wherein, the third polarization is anti-
Penetrating prism includes the second reflection of polarization face；
The incidence surface of the third reflection of polarization prism transmits the incident ray and enters the third reflection of polarization prism；
The second reflection of polarization face will be anti-at least partially from the incident ray of the incidence surface of the third reflection of polarization prism
It is incident upon the incidence surface of first lens group.
5. optical system according to claim 1, which is characterized in that further include set on first lens group and described the
Between one reflection of polarization prism group, the third lens group that is made of at least one lens；Wherein, the third lens group has negative
Focal power；
The third lens group is used to receive at least partly described incident ray from first lens group transmission, and near
Incident ray described in small part is transmitted through the first incidence surface of the first reflection of polarization prism group；
Wherein, the intermediate image plane is formed on the light path before the third lens group.
6. one kind wears display equipment, which is characterized in that
The display equipment of wearing includes shell, the first aperture and the second aperture on the shell；It is described to wear display
Equipment further includes the first optical module and the second optical module, and the optical module includes flat plate eyeglass and is arranged in institute
State the intracorporal optical system as described in any one in claim 1-5 of shell；First aperture and first optical module pair
It answers, second aperture and second optical module correspond to；Wherein,
Emergent ray from the optical system is incident to the plane through first aperture and second aperture and puts down
Plate eyeglass；
The flat plate eyeglass is used to be coupled into at least partly described incident light of the second lens group outgoing of the optical system
Line, and by at least partly described incident ray at the position of corresponding human eye decoupling.
7. equipment according to claim 6, which is characterized in that described to respectively correspond described the first of left eye and right eye setting
Optical module and second optical module are symmetrical about center line；
First lens group of the optical system of any optical module is disposed far from the center line side；The optical system
The second lens group be provided close to the center line side.
8. equipment according to claim 6, which is characterized in that further include be arranged in the shell, respectively correspond it is described
Second display system of the first display system of the first optical module and corresponding second optical module；
The display system is for generating the incident ray.
9. equipment according to claim 8, which is characterized in that the display system include the first display, described first
The second reflection of polarization prism group side of the optical system is arranged in display；
Or the first lens group and the first reflection of polarization prism group phase of the optical system is arranged in first display
Pair side.
10. equipment according to claim 8, which is characterized in that the display system includes second display and illumination group
Part, the light fixture and the second display are divided into the second reflection of polarization prism group two sides of the optical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108828.3A CN109188692A (en) | 2018-09-21 | 2018-09-21 | Optical system and wear display equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108828.3A CN109188692A (en) | 2018-09-21 | 2018-09-21 | Optical system and wear display equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188692A true CN109188692A (en) | 2019-01-11 |
Family
ID=64909558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108828.3A Pending CN109188692A (en) | 2018-09-21 | 2018-09-21 | Optical system and wear display equipment |
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| Country | Link |
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| CN (1) | CN109188692A (en) |
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| CN110879473A (en) * | 2019-11-27 | 2020-03-13 | 歌尔股份有限公司 | Projection lens assembly and head-mounted display device |
| CN111948815A (en) * | 2019-05-15 | 2020-11-17 | 苹果公司 | Electronic device having emissive display with light recycling cavity |
| CN112198665A (en) * | 2020-10-27 | 2021-01-08 | 北京耐德佳显示技术有限公司 | Array waveguide near-to-eye display device |
| WO2022141594A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system capable of superimposing optical paths and head-mounted display device |
| WO2022141595A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Optical eyepiece system capable of superposing optical paths and head-mounted display device |
| CN115053165A (en) * | 2020-12-25 | 2022-09-13 | 京东方科技集团股份有限公司 | Optical system and display device |
| CN115167067A (en) * | 2022-05-30 | 2022-10-11 | 歌尔股份有限公司 | Projection system and head-mounted device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111948815A (en) * | 2019-05-15 | 2020-11-17 | 苹果公司 | Electronic device having emissive display with light recycling cavity |
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| CN110879473A (en) * | 2019-11-27 | 2020-03-13 | 歌尔股份有限公司 | Projection lens assembly and head-mounted display device |
| CN110879473B (en) * | 2019-11-27 | 2021-11-30 | 歌尔光学科技有限公司 | Projection lens assembly and head-mounted display device |
| CN112198665A (en) * | 2020-10-27 | 2021-01-08 | 北京耐德佳显示技术有限公司 | Array waveguide near-to-eye display device |
| CN115053165A (en) * | 2020-12-25 | 2022-09-13 | 京东方科技集团股份有限公司 | Optical system and display device |
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| WO2022141594A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Eyepiece optical system capable of superimposing optical paths and head-mounted display device |
| WO2022141595A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳纳德光学有限公司 | Optical eyepiece system capable of superposing optical paths and head-mounted display device |
| CN115167067A (en) * | 2022-05-30 | 2022-10-11 | 歌尔股份有限公司 | Projection system and head-mounted device |
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