CN108828774A - Virtual reality shows equipment - Google Patents
Virtual reality shows equipment Download PDFInfo
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- CN108828774A CN108828774A CN201810708889.7A CN201810708889A CN108828774A CN 108828774 A CN108828774 A CN 108828774A CN 201810708889 A CN201810708889 A CN 201810708889A CN 108828774 A CN108828774 A CN 108828774A
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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
- G02B27/0101—Head-up displays 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
- G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
- G02B2027/0114—Head-up displays characterised by optical features comprising device for genereting colour display comprising dichroic elements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention relates to a kind of virtual realities to show that equipment, the virtual reality show equipment, including：Beam splitter, the first optical lens, reflecting mirror and the second optical lens.Beam splitter is used to project the first incident light along first direction, and the second incident light is projected in a second direction；First incident light is identical as the incident direction of the second incident light；First direction is different from second direction；First optical lens is oppositely arranged with beam splitter in a first direction, in the optical path of the first incident light projected positioned at beam splitter, for the first incident light to be imaged；Reflecting mirror is obliquely installed relative to beam splitter in a second direction, for reflecting the second incident light that beam splitter projects；Second optical lens is oppositely arranged with reflecting mirror in a first direction, in the optical path of the second incident light of reflecting mirror reflection, for the second incident light to be imaged.According to an embodiment of the invention, can reduce the display area of display screen, save the cost.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of virtual reality to show equipment.
Background technique
In the related technology, some virtual realities show that equipment generallys use one piece of biggish display screen to be shown,
And it is divided into left and right region, it is respectively used to display left eye figure and right eye figure.Left eye figure and right eye figure pass through respectively left and right lens at
Picture is projected to respectively in the images of left and right eyes of viewer.Since images of left and right eyes figure has parallax, viewer can generate stereoscopic vision.
And some virtual realities show equipment using two pieces of lesser screens to replace one piece of biggish display screen.On above-mentioned
Two kinds of virtual realities show equipment, and total display area area is larger, and cost is relatively high.
Summary of the invention
The present invention provides virtual reality and shows equipment, to solve deficiency in the related technology.
According to a first aspect of the embodiments of the present invention, a kind of virtual reality display equipment is provided, including：
Beam splitter projects the second incident light for projecting the first incident light along first direction in a second direction；Its
In, first incident light is identical as the incident direction of second incident light；The first direction and the second direction are not
Together；
First optical lens is oppositely arranged with the beam splitter in said first direction, is located at the beam splitter
In the optical path of first incident light projected, for first incident light to be imaged；
Reflecting mirror is obliquely installed relative to the beam splitter in this second direction, for the beam splitter
Second incident light projected is reflected；
Second optical lens is oppositely arranged with the reflecting mirror in said first direction, is located at the reflecting mirror and is reflected
Second incident light optical path on, for second incident light to be imaged.
In one embodiment, the virtual reality shows equipment, may also include：
Display screen is oppositely arranged with the beam splitter, for showing the first image and the second image；When the display screen
Emit first incident light when showing the first image, described the is emitted when the display screen shows second image
Two incident lights.
In one embodiment, the display screen may include alternately arranged first pixel and the second pixel；Described first
Pixel is for showing the first image, and second pixel is for showing second image.
In one embodiment, the polarization direction of the polarization direction of first incident light and second incident light is not
Together.
In one embodiment, the beam splitter can be polarization splitting prism.
In one embodiment, first incident light and second incident light can be linearly polarized light.
In one embodiment, the polarization splitting prism may include first side, second side and third side；Institute
First side is stated to be parallel to each other with the second side, the third side it is adjacent with the first side and with first side
Face is vertical；The first side is parallel with the first direction, and the third side is parallel with the second direction；
The display screen is opposite with the first side, and the reflecting mirror is opposite with the second side, and with described
The acute angle in angle between two side faces is predetermined angle；The incident direction enters perpendicular to the first side, described first
The polarization direction of light is penetrated perpendicular to the plane of incidence determined according to the incident direction, the polarization direction of second incident light is parallel
In the plane of incidence；First optical lens is opposite with the third side；The beam splitter is by first incident light
It is projected from the third side, second incident light is projected from the second side to the reflecting mirror.
In one embodiment, the polarization splitting prism may include second side, third side and the 4th side；Institute
It is adjacent with the second side and be mutually perpendicular to state the 4th side, the third side it is adjacent with the second side and with it is described
Second side is mutually perpendicular to, and the 4th side is parallel with the third side；The second side and the first direction are flat
Row, the third side are parallel with the second direction；
The display screen is opposite with the 4th side, and the reflecting mirror is opposite with the second side, and with described
The acute angle in angle between two side faces is predetermined angle；The incident direction enters perpendicular to the 4th side, described first
The polarization direction for penetrating light is parallel to the plane of incidence determined according to the incident direction, and the polarization direction of second incident light is vertical
In the plane of incidence；First optical lens is opposite with the third side；The beam splitter is by first incident light
It is projected from the third side, second incident light is projected from the second side to the reflecting mirror.
In one embodiment, first incident light can be left circularly polarized light, and second incident light can be dextrorotation
Circularly polarized light；Alternatively,
First incident light can be right-circularly polarized light, and second incident light can be left circularly polarized light.
In one embodiment, the first image that the display screen is shown is through void formed by first optical lens
The image distance of picture is the first image distance；Second image that the display screen is shown is through the virtual image formed by second optical lens
Image distance is the second image distance；
First image distance is identical as second image distance.
According to above-described embodiment it is found that passing through beam splitter for identical first incident light of incident direction and the second incident light
Light-splitting processing is carried out, the first incident light is projected along first direction, the second incident light is projected in a second direction.In a first direction
The first incident light that beam splitter projects is imaged in upper the first optical lens being oppositely arranged with beam splitter.In second party
The second the reflection of generation incident light to the second optical lens that the reflecting mirror being obliquely installed upwards relative to beam splitter projects beam splitter
The second incident light is imaged in mirror, the second optical lens.Due to utilizing beam splitter can be by identical two beam of incident direction
Incident light carries out light-splitting processing, and projects respectively from different directions, and the two-beam after injection can respectively be imaged, in this way, making
The same display area that same display screen must can be used provides the two width different images for being used for stereoscopic display, and then can reduce
The quantity of display screen or the display area for reducing display screen, save the cost.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the structural schematic diagram that equipment is shown according to the virtual reality shown in the relevant technologies；
Fig. 2 is that a kind of virtual reality shown according to embodiments of the present invention shows the structural schematic diagram of equipment；
Fig. 3 is that another virtual reality shown according to embodiments of the present invention shows the structural schematic diagram of equipment；
Fig. 4 is a kind of pixel distribution schematic diagram of the display screen shown according to embodiments of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
As shown in Figure 1, in the related technology, some virtual realities show equipment using one piece of biggish display screen 11 come into
Row display, and it is divided into left region 111, right region 112, it is respectively used to display left eye figure and right eye figure.Left eye figure and right eye figure point
Not Jing Guo left lens 12, right lens 13 be imaged, projected in the images of left and right eyes of viewer respectively.Since images of left and right eyes figure has view
Difference, viewer can generate stereoscopic vision.And some virtual realities show equipment using two pieces of lesser screens to replace one
The biggish display screen of block.Equipment is shown for above-mentioned upper two kinds of virtual realities, total display area area is larger, cost ratio
It is higher.
The embodiment of the present invention provides a kind of virtual reality display equipment, for solving above-mentioned technical problem, it is possible to reduce aobvious
The quantity of display screen or the display area for reducing display screen, save the cost.
Fig. 2~3 are the virtual reality display equipment shown according to embodiments of the present invention, including：Beam splitter 21, the first light
Learn lens 22, reflecting mirror 23 and the second optical lens 24.
As shown in figures 2-3, beam splitter 21 is used to project the first incident light O1 along first direction, by the second incident light
O2 is projected in a second direction；Wherein, the first incident light O1 is identical as the incident direction of the second incident light O2；Described
One direction is different from the second direction.First optical lens 22 is opposite with the beam splitter 21 in said first direction to be set
Set, positioned at the beam splitter 21 project the first incident light O1 optical path on, for the first incident light O1 into
Row imaging.Reflecting mirror 23 is obliquely installed relative to the beam splitter 21 in this second direction, for the light splitting member
The second incident light O2 that part 21 projects is reflected.Second optical lens 24 in said first direction with the reflecting mirror
23 are oppositely arranged, in the optical path of the second incident light O2 of the reflecting mirror 23 reflection, for incident to described second
Light O2 is imaged.
In embodiments of the present invention, by beam splitter by identical first incident light of incident direction and the second incident light into
First incident light is projected along first direction, the second incident light is projected in a second direction by row light-splitting processing.In a first direction
The first incident light that beam splitter projects is imaged in the first optical lens being oppositely arranged with beam splitter.In second direction
On the reflecting mirror that is obliquely installed relative to beam splitter the second the reflection of generation incident light to the second optical lens for projecting beam splitter,
The second incident light is imaged in second optical lens.Due to utilizing beam splitter that identical two beam of incident direction is incident
Light carries out light-splitting processing, and projects respectively from different directions, and the two-beam after injection can respectively be imaged, in this way, making can
To use the same display area of same display screen to provide the two width different images for stereoscopic display, and then display can be reduced
The quantity of screen or the display area for reducing display screen, save the cost.
In one embodiment, as shown in Fig. 2, virtual reality shows that equipment may also include display screen 25.Display screen 25 with
The beam splitter 21 is oppositely arranged, for showing the first image and the second image.When the display screen 25 shows described first
Emit the first incident light O1 when image, second incident light is emitted when the display screen 25 shows second image
O2.In one embodiment, there can be parallax between the first image and the second image, when the first image and the second image are in human eye
When being received in the vision residence time by human eye, family can be used and generate stereoscopic vision.
In one embodiment, the polarization direction of the polarization direction of the first incident light O1 and the second incident light O2
It is different.In one embodiment, as shown in figure 4, the display screen 25 may include alternately arranged first pixel 41 and the second picture
Element 42；First pixel 41 is for showing the first image, and second pixel 42 is for showing second image.Institute
It states when the first pixel 41 shows the first image and emits the first incident light O1, second pixel 42 shows second image
When emit the second incident light O2.First pixel 41 can be alternately arranged with the second pixel 42 with the behavior period, can also be with column
Period is alternately arranged.In this way, display screen 25 can show the first image and the second image simultaneously, and it is different to emit polarization direction
First incident light O1 and the second incident light O2.
In another embodiment, display screen 25 may include alternately arranged first polarizer and second polarizer, and
One polarizer is oppositely arranged with the pixel for show the first image, second polarizer and the pixel phase for being used to show the second image
To setting.The polarization direction of first polarizer is identical as the polarization direction of the first incident light O1, the polarization direction of second polarizer
It is identical as the polarization direction of the second incident light O2.The light emitted when for showing that the pixel of the first image shows the first image is through
The first incident light O1 is obtained after one polarizer, the light emitted when for showing that the pixel of the second image shows the second image is through second
The second incident light O2 is obtained after the polarizer.First polarizer and second polarizer can be but be not limited to polarizing film, prism etc..
In one embodiment, the beam splitter is polarization splitting prism.Polarization splitting prism is two right-angle prisms
The cube structure that gluing is formed, wherein multi-layer film structure can be coated on the inclined-plane of right-angle prism according to demand.In a reality
It applies in example, polarization splitting prism can reflect polarization direction in incident light perpendicular to the light of the plane of incidence, in incident light
The light that polarization direction is parallel to the plane of incidence is transmitted.In another embodiment, four points can be added in polarization splitting prism
One of wave plate, the circularly polarized light in incident light is first converted into linearly polarized light, then inclined perpendicular to the line of the plane of incidence to polarization direction
Vibration light is reflected, and the linearly polarized light for being parallel to the plane of incidence to polarization direction transmits.
In one embodiment, the first incident light O1 and the second incident light O2 is linearly polarized light.At one
In exemplary embodiment, the first polarization direction incident light O1 is perpendicular to the plane of incidence determined according to incident direction, the second incident light
Polarization direction be parallel to the plane of incidence.In the present example embodiment, when between the first image and the second image have view
When poor, it can show that equipment realizes stereoscopic display using virtual reality as shown in Figure 2.In the present example embodiment, it polarizes
Amici prism includes first side S1, second side S2 and third side S3.The first side S1 and the second side
S2 is parallel to each other, and the third side S3 is adjacent with the first side S1 and vertical with the first side S1；Described first
Side S1 is parallel with the first direction, and the third side S3 is parallel with the second direction.
As shown in Fig. 2, display screen 25 is opposite with the first side S1, the first incident light O1 and the second incident light O2
Can be with Brewster angle incidence, but incidence angle is not limited to Brewster angle.The reflecting mirror 23 and the second side S2 phase
It is right, and the acute angle in the angle between the second side S2 is predetermined angle, such as predetermined angle can be but be not limited to
45 degree.The incident direction of first incident light O1 and the second incident light O2 are perpendicular to the first side S1；First optical lens
Mirror 22 is opposite with the third side S3；The beam splitter 21 penetrates the first incident light O1 from the third side S3
Out, the second incident light O2 is projected from the second side S2 to the reflecting mirror 23.In this way, when user wears virtually now
When real display equipment, display screen shows the first incident light O1 emitted when the first image through polarization splitting prism, the first optical lens
The virtual image of available first image of mirror 22, is watched by the left eye of user；Display screen shows second emitted when the second image
The virtual image of the incident light O2 through polarization splitting prism, reflecting mirror 23, available second image of the second optical lens 24, by user's
Right eye is watched.Due to having parallax between the first image and the second image, user can experience the effect of stereoscopic display.
In another exemplary embodiment, the first polarization direction incident light O1 is parallel to enters according to what incident direction determined
Face is penetrated, the polarization direction of the second incident light O2 is perpendicular to the plane of incidence.In the present example embodiment, when the first image and
When there is parallax between two images, it can show that equipment realizes stereoscopic display using virtual reality as shown in Figure 3.In this example
In property embodiment, the polarization splitting prism includes second side S2, third side S3 and the 4th side S4.4th side
Face S4 is adjacent with the second side S2 and is mutually perpendicular to, the third side S3 it is adjacent with the second side S2 and with it is described
Second side S2 is mutually perpendicular to, and the 4th side S4 is parallel with the third side S3；The second side S2 and described the
One direction is parallel, and the third side S3 is parallel with the second direction.
As shown in figure 3, the display screen 25 is oppositely arranged with the 4th side S4, the reflecting mirror 23 and described second
Side S2 is opposite, and the acute angle in the angle between the second side S2 is predetermined angle, such as predetermined angle can be
But it is not limited to 45 degree.The incident direction is perpendicular to the 4th side S4.First optical lens 22 and the third side
Face S3 is opposite.The beam splitter 21 projects the first incident light O1 from the third side S3, incident by described second
Light O2 is projected from the second side S2 to the reflecting mirror 23.In this way, when user wears virtual reality and shows equipment, display
The the first incident light O1 emitted when 25 the first image of display of screen is through polarization splitting prism, the first optical lens 22 available first
The virtual image of image is watched by the left eye of user；Display screen shows the second incident light O2 emitted when the second image through polarization point
The virtual image of light prism, reflecting mirror 23, available second image of the second optical lens 24, is watched by the right eye of user.Due to
There is parallax, user can experience the effect of stereoscopic display between first image and the second image.
Certainly, in some embodiments, first incident light can also be left circularly polarized light, second incident light
It can be right-circularly polarized light.In further embodiments, first incident light can be right-circularly polarized light, described second
Incident light can be left circularly polarized light.
In one embodiment, the first image that the display screen 25 is shown through 22 institute of the first optical lens at
The virtual image image distance be the first image distance；Second image that the display screen 25 is shown through 24 institute of the second optical lens at
The virtual image image distance be the second image distance.First image distance is identical as second image distance.In this way, user's left eye watch
The image distance of the virtual image of one image is identical as the image distance of the virtual image of the second image that right eye is watched.In implementation as shown in Figure 2,3
In example, since the light path between display screen 25 and the second optical lens 24 is greater than the light path between the first optical lens 22, because
This, the focal length of the second optical lens 24 is greater than the focal length of the first optical lens 22.
It should be noted that the embodiment of the present invention shows the display location in equipment in the left eye side of user with virtual reality
For be illustrated.Certainly, in practical applications, virtual reality shows that the display screen in equipment may be alternatively located at the right eye of user
Side.When display location is when the right eye side of user, the focal length of the optical lens of left eye side is greater than the coke of the optical lens of right eye side
Away from.
It should be pointed out that in the accompanying drawings, for the size that clearly may be exaggerated layer and region of diagram.And it can be with
Understand, when element or layer be referred in another element or layer "upper", it can be directly in other elements, or may exist
Intermediate layer.Additionally, it is appreciated that it can be directly at other when element or layer be referred in another element or layer "lower"
Under element, or there may be the layer of more than one centre or elements.In addition, it is to be appreciated that when layer or element are referred to as
Two layers or two elements " between " when, it can between two layers or two elements unique layer, or there may also be one
Above middle layer or element.Similar reference marker indicates similar element in the whole text.
In the present invention, term " first ", " second " are used for description purposes only, and are not understood to indicate or imply opposite
Importance.Term " multiple " refers to two or more, unless otherwise restricted clearly.
Those skilled in the art are considering specification and after practicing disclosure disclosed herein, will readily occur to of the invention its
Its embodiment.The present invention is directed to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of virtual reality shows equipment, which is characterized in that including：
Beam splitter projects the second incident light for projecting the first incident light along first direction in a second direction；Wherein,
First incident light is identical as the incident direction of second incident light；The first direction is different from the second direction；
First optical lens is oppositely arranged with the beam splitter in said first direction, is located at the beam splitter and is projected
First incident light optical path on, for first incident light to be imaged；
Reflecting mirror is obliquely installed relative to the beam splitter in this second direction, for projecting to the beam splitter
Second incident light reflected；
Second optical lens is oppositely arranged with the reflecting mirror in said first direction, positioned at the institute of reflecting mirror reflection
In the optical path for stating the second incident light, for second incident light to be imaged.
2. virtual reality according to claim 1 shows equipment, which is characterized in that further include：
Display screen is oppositely arranged with the beam splitter, for showing the first image and the second image；When the display screen is shown
Emit first incident light when the first image, described second is emitted when the display screen shows second image and is entered
Penetrate light.
3. virtual reality according to claim 2 shows equipment, which is characterized in that the display screen includes alternately arranged
First pixel and the second pixel；First pixel is described for showing for showing the first image, second pixel
Second image.
4. virtual reality according to claim 2 shows equipment, which is characterized in that the polarization direction of first incident light
It is different from the polarization direction of second incident light.
5. virtual reality according to claim 4 shows equipment, which is characterized in that the beam splitter is polarization spectro rib
Mirror.
6. virtual reality according to claim 5 shows equipment, which is characterized in that first incident light and described second
Incident light is linearly polarized light.
7. virtual reality according to claim 6 shows equipment, which is characterized in that the polarization splitting prism includes first
Side, second side and third side；The first side is parallel to each other with the second side, the third side and institute
It is adjacent and vertical with the first side to state first side；The first side is parallel with the first direction, the third side
Face is parallel with the second direction；
The display screen is opposite with the first side, and the reflecting mirror is opposite with the second side, and with described second side
The acute angle in angle between face is predetermined angle；The incident direction is perpendicular to the first side, first incident light
Polarization direction perpendicular to according to the incident direction determine the plane of incidence, the polarization direction of second incident light is parallel to institute
State the plane of incidence；First optical lens is opposite with the third side；The beam splitter is by first incident light from institute
The injection of third side is stated, second incident light is projected from the second side to the reflecting mirror.
8. virtual reality according to claim 6 shows equipment, which is characterized in that the polarization splitting prism includes second
Side, third side and the 4th side；4th side is adjacent with the second side and is mutually perpendicular to, the third side
Face is adjacent with the second side and is mutually perpendicular to the second side, and the 4th side is parallel with the third side；
The second side is parallel with the first direction, and the third side is parallel with the second direction；
The display screen is opposite with the 4th side, and the reflecting mirror is opposite with the second side, and with described second side
The acute angle in angle between face is predetermined angle；The incident direction is perpendicular to the 4th side, first incident light
Polarization direction be parallel to according to the incident direction determine the plane of incidence, the polarization direction of second incident light is perpendicular to institute
State the plane of incidence；First optical lens is opposite with the third side；The beam splitter is by first incident light from institute
The injection of third side is stated, second incident light is projected from the second side to the reflecting mirror.
9. virtual reality according to claim 5 shows equipment, which is characterized in that first incident light is that left-handed circle is inclined
Shake light, and second incident light is right-circularly polarized light；Alternatively,
First incident light is right-circularly polarized light, and second incident light is left circularly polarized light.
10. virtual reality according to claim 2 shows equipment, which is characterized in that the display screen show described the
Image distance of one image through the virtual image formed by first optical lens is the first image distance；Second figure that the display screen is shown
As the image distance through the virtual image formed by second optical lens is the second image distance；
First image distance is identical as second image distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708889.7A CN108828774A (en) | 2018-07-02 | 2018-07-02 | Virtual reality shows equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810708889.7A CN108828774A (en) | 2018-07-02 | 2018-07-02 | Virtual reality shows equipment |
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| CN108828774A true CN108828774A (en) | 2018-11-16 |
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| CN201810708889.7A Pending CN108828774A (en) | 2018-07-02 | 2018-07-02 | Virtual reality shows equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208948A (en) * | 2019-06-03 | 2019-09-06 | 歌尔股份有限公司 | Optical system and virtual reality device with it |
| CN114236861A (en) * | 2021-11-30 | 2022-03-25 | 青岛歌尔声学科技有限公司 | Optical module and electronic device |
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| CN114236861A (en) * | 2021-11-30 | 2022-03-25 | 青岛歌尔声学科技有限公司 | Optical module and electronic device |
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