CN105892064B - Near-eye display system, virtual reality device and augmented reality equipment - Google Patents
Near-eye display system, virtual reality device and augmented reality equipment Download PDFInfo
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- CN105892064B CN105892064B CN201610510978.1A CN201610510978A CN105892064B CN 105892064 B CN105892064 B CN 105892064B CN 201610510978 A CN201610510978 A CN 201610510978A CN 105892064 B CN105892064 B CN 105892064B
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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
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
-
- 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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- 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
-
- 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
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
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- Optics & Photonics (AREA)
Abstract
The invention discloses a kind of near-eye display system, virtual reality device and augmented reality equipment, including laser light source, spectrum groupware, fiber array, amplification microscope group and controller, the spectrum groupware includes M*N output channel, the outgoing end face of the fiber array is curved surface, and the outgoing end face of the fiber array is arranged in the focal length of the amplification microscope group；The laser of the laser light source output is divided into M*N light beam after the spectrum groupware；The controller is electrically connected the spectrum groupware and controls the opening and closing of each output channel in the spectrum groupware for the display visual field gray scale according to image information；Optical fiber in the fiber array is coupled with the M*N output channel, is used for transmission the output beam exported from the spectrum groupware；The amplification microscope group is arranged on the emitting light path of the fiber array, and the output beam for the fiber array to be emitted refracts to human eye.
Description
Technical field
The present invention relates to technical field of computer vision more particularly to a kind of near-eye display system, virtual reality device and
Augmented reality equipment.
Background technique
With the rapid development of computer vision technique, so that augmented reality and virtual reality technology are also at full speed therewith
Development.Augmented reality is typically based on the actual physical situation image of the image capture devices such as camera acquisition, passes through calculating
It is virtually raw will to have associated content of text, picture material or iconic model etc. therewith for machine system identification analysis and query and search
At virtual image be shown in actual physical situation image, to allow users to obtain in the real physical environment that is in
The mark of real-world object such as illustrates at the related expandings information, or experiences the three-dimensional, prominent of real-world object in real physical environment
The enhancing visual effect emphasized out.And virtual reality technology is a kind of Computer Simulation system that can be created with the experiencing virtual world
System, it generates a kind of simulated environment using computer, which can pass through the feedbacks sides such as vision, the sense of hearing, tactile simultaneously
Formula, so that user is immersed in the virtual world that simulated environment is shown.
Existing augmented reality and virtual reality technology can use magnifying glass to show bigger display visual field
Group is imaged, but when by amplification microscope group to be imaged, and can have an aberration, and the presence of aberration, so that image shows source warp
After amplifying microscope group amplification, there is the case where central area imaging clearly and fringe region image blur, so that the prior art is being adopted
When being imaged with amplification microscope group, there are the low technical problems of the clarity of imaging.
Summary of the invention
The present invention provides a kind of near-eye display system, virtual reality device and augmented reality equipment, using amplifying microscope group
When imaging, the clarity of fringe region imaging can be effectively improved, so that the clarity of magnifying glass group imaging also increases accordingly.
First aspect of the embodiment of the present invention provides a kind of near-eye display system, including laser light source, spectrum groupware, optical fiber
Array, amplification microscope group and controller, the spectrum groupware include M*N output channel, and the outgoing end face of the fiber array is
Curved surface, and the outgoing end face of the fiber array is arranged in the focal length of the amplification microscope group, M and N are whole not less than 2
Number；
The laser light source is used to export the laser modulated according to image information；The laser of the laser light source output passes through
After the spectrum groupware, it is divided into M*N light beam；The controller is electrically connected the spectrum groupware, for according to the shadow
As the display visual field gray scale of information, the opening and closing of each output channel in the spectrum groupware are controlled；The fiber array
In optical fiber coupled with the M*N output channel, be used for transmission from the spectrum groupware export output beam；The amplification
Microscope group is arranged on the emitting light path of the fiber array, and the output beam for the fiber array to be emitted refracts to
Human eye.
Optionally, the laser light source includes three color laser light sources, collimation microscope group, bundling device, coupler and couples optical fiber,
Wherein, the three colors laser light source exports three color laser；The collimation microscope group is set to the emergent light of the three colors laser light source
On the road, for carrying out collimation processing to the three colors laser；The bundling device is set on the emitting light path of the collimation microscope group,
For carrying out the laser of the collimation microscope group outgoing to close beam processing；The coupler is set to the emitting light path of the bundling device
On, the laser coupled for the bundling device to be emitted is into the coupling optical fiber；The coupling optical fiber and the coupler phase
Even, the coupling optical fiber is used for transmission the laser by the coupler.
Optionally, the fiber array is arranged by M row N column close fiber optic.
Optionally, the spectrum groupware includes first optical splitter of 1 1*M type and the second optical branching of M 1*N type
The incidence end of device, first optical splitter is connected with the exit end of the laser light source, the M the second optical splitters and institute
M exit end for stating the first optical splitter is connected one by one.
Optionally, the spectrum groupware includes the second optical splitter of first optical splitter of 1 1*M type, M 1*N type
It is connected with the incidence end of M*N channel switch, first optical splitter with the exit end of the laser light source, the M the
Two optical splitters are connected one by one with M exit end of first optical splitter；The M*N channel switch is described for controlling
The opening and closing of M*N output channel, the M*N channel switch and the M*N output channel correspond.
Optionally, the spectrum groupware includes the optical splitter of 1 M*N type, and the optical splitter of the M*N type is integrated with M*
N number of channel switch, the M*N channel switch are used to control the opening and closing of the M*N output channel, and the M*N is a
Channel switch and the M*N output channel correspond.
Optionally, the outgoing end face of the fiber array is overlapped with the optimal imaging curved surface of the amplification microscope group.
Optionally, the outgoing end face of the fiber array is overlapped with the optimal imaging curved surface of the amplification microscope group, specifically:
According to magnifying glass image-forming principle, the optimal imaging curved surface of the amplification microscope group is obtained；Further according to pre-set institute
The optimal imaging Surface tessellation is obtained every optical fiber in institute by the outgoing face size for stating every optical fiber in fiber array
The position on optimal imaging curved surface is stated, every optical fiber is arranged according to the position.
Optionally, the beam waist position of every optical fiber in the fiber array with a position of the optimal imaging curved surface
Set coincidence.
Optionally, the end face of every optical fiber in the fiber array is arranged to curved surface, the curved surface emergent light of every optical fiber
The numerical aperture of beam and the numerical aperture of the amplification microscope group match.
Second aspect of the embodiment of the present invention provides a kind of virtual reality device, and the nearly eye including such as first aspect introduction is aobvious
Show system.
The third aspect of the embodiment of the present invention provides a kind of augmented reality equipment, and the nearly eye including such as first aspect introduction is aobvious
Show that system, external environmental light enter human eye by the amplification microscope group in the near-eye display system.
Beneficial effects of the present invention are as follows:
Based on the above-mentioned technical proposal, the outgoing end face of fiber array is curved surface in the embodiment of the present invention, meets the amplification
The imaging surface face type of microscope group, when being amplified using inverse light path principle, the image that the outgoing end face of the fiber array issues is through amplifying
It is imaged after microscope group refraction, so that fringe region imaging remains to be apparent, and then can be improved the clarity of imaging, and the light
The outgoing end face of fibre array is arranged in the focal length of amplification microscope group, so that being imaged as amplifying the upright virtual image after refraction, can make
It must show that visual field increases, it follows that the embodiment of the present application can effectively improve marginal zone in the case where ensuring to show visual field
The clarity of domain imaging, so that the clarity of magnifying glass group imaging also increases accordingly.
Detailed description of the invention
Fig. 1 is the first structural schematic diagram of near-eye display system in the embodiment of the present invention；
Fig. 2 is second of structural schematic diagram of near-eye display system in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of laser light source in the embodiment of the present invention；
Fig. 4 is the connection structure diagram of laser light source and spectrum groupware in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the second optical splitter 2041 in the embodiment of the present invention；
The beam Propagation schematic diagram that Fig. 6 is the outgoing end face of fiber array in the embodiment of the present invention when being curved surface.
Related label is as follows in attached drawing:
10 --- laser light source, 11 --- laser light source, 12 --- laser light source, 101 --- red laser light source,
102 --- green laser light source, 103 --- blue laser light source, 104 --- collimation microscope group, 1041 --- collimation microscope group,
1042 --- collimation microscope group, 1043 --- collimation microscope group, 105 --- bundling device, 1051 --- dichroscope, 1052 --- two to
Look mirror, 1053 --- dichroscope, 106 --- coupler, 107 --- coupling optical fiber, 20 --- spectrum groupware, 21 --- light splitting
Component, 22 --- spectrum groupware, 201 --- the optical splitter of M*N type, 202 --- M*N channel switch, 203 --- 1*M type
The first optical splitter, 204 --- the second optical splitter of M 1*N type, 2041 --- the second optical splitter, 205 --- 1*N
A channel switch, 206 --- N root decoupling optical fiber, 30 --- fiber array, 31 --- the first fiber array, 32 --- the second light
Fibre array, 40 --- amplification microscope group, 41 --- the first amplification microscope group, 42 --- the second amplification microscope group, 50 --- controller,
60 --- left eye, 61 --- right eye.
Specific embodiment
The present invention provides a kind of near-eye display system, virtual reality device and augmented reality equipment, using amplifying microscope group
When imaging, the clarity of fringe region imaging can be effectively improved, so that the clarity of magnifying glass group imaging also increases accordingly.
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing.
As shown in Figure 1, first aspect present invention provides a kind of near-eye display system, including laser light source 10, light splitting group
Part 20, fiber array 30, amplification microscope group 40 and controller 50, spectrum groupware 20 include M*N output channel, fiber array 30
Outgoing end face is curved surface, and the outgoing end face of fiber array 30 is arranged in the focal length of amplification microscope group 40, and M and N are not less than 2
Integer；
Laser light source 10 is used to export the laser modulated according to image information；The laser that laser light source 10 exports is by light splitting
After component 20, it is divided into M*N light beam；Controller 50 is electrically connected spectrum groupware 20, for according to the aobvious of the image information
Show visual field gray scale, controls the opening and closing of each output channel in spectrum groupware 20；Optical fiber in fiber array 30 with it is described
M*N output channel coupling, is used for transmission the output beam exported from spectrum groupware 20；Amplify microscope group 40 to be arranged in fiber array
On 30 emitting light path, the output beam for fiber array 30 to be emitted refracts to human eye, and the human eye includes people's
Left eye 60 and right eye 61.
It is arranged in the focal length of amplification microscope group 40 due to the outgoing end face of fiber array 30, so that amplifying microscope group 40 for optical fiber
When the output beam that array 30 is emitted refracts to human eye, is formed and amplify the upright virtual image, so, it is possible so that the nearly eye
The display visual field of display system increases, and the display area of image can also increase with it.
Moreover, due to the presence of aberration, imaging surface is not ideal flat according to the optical imaging concept of amplification microscope group 40
Face, but curved surface, when being amplified using inverse light path principle, plane image shows that source after amplification microscope group amplification, center occurs
The case where domain imaging is clear and fringe region image blur.If image shows that source is curved surface, meet the imaging surface of amplification microscope group 40
Face type, when being amplified using inverse light path principle, curved face type image shows source after amplification microscope group amplification, so that fringe region imaging is still
It can be apparent, and the outgoing end face of fiber array 30 is curved surface in the embodiment of the present invention, meets the imaging surface of amplification microscope group 40
Face type so, it is possible the clarity that fringe region imaging is effectively improved when enabling using the amplification imaging of microscope group 40, so that putting
The clarity of big microscope group imaging also increases accordingly.
With continued reference to Fig. 1, can be divided by amplifying microscope group 40 by two groups, wherein the left eye 60 of the first corresponding people of amplification microscope group 41,
The right eye 61 of the second corresponding people of amplification microscope group 42；Certainly, amplification microscope group 40 is also possible to one group of magnifying glass composition, and the application does not make
Concrete restriction.
In the embodiment of the present application, laser light source 10 can also include S laser light source, at this moment each laser light source corresponding one
The laser that the S laser light source is emitted is divided into M*N light beam by corresponding spectrum groupware by a spectrum groupware；Due to every
The corresponding spectrum groupware of a laser light source, so that spectrum groupware 20 also includes S spectrum groupware；And each spectrum groupware pair
A fiber array is answered, so that fiber array 30 also includes S fiber array, wherein S is the integer not less than 2, lower mask body
By taking S=2 as an example.
As shown in Fig. 2, laser light source 10 is made of laser light source 11 and laser light source 12；Similarly, spectrum groupware 20 also by
Spectrum groupware 21 and the composition of spectrum groupware 22 and fiber array 30 are also by 32 groups of the first fiber array 31 and the second fiber array
At.
Specifically, the laser that laser light source 11 issues is divided into M* after spectrum groupware 21 when M*N is 2 integral multiple
N/2 light beam, the M*N/2 light beam coupling is into the first fiber array 31, then passes through the first fiber array 31 output to the
One amplification microscope group 41 finally reflects the left eye 60 into people by the first amplification microscope group 41；The laser that laser light source 12 issues is through being divided
After component 22, it is divided into M*N/2 light beam, the M*N/2 light beam coupling is into the second fiber array 32, then passes through the second light
The output of fibre array 32 finally reflects the right eye 61 into people by the second amplification microscope group 42 to the second amplification microscope group 42；When M*N be surprise
When number, the laser that laser light source 11 issues is divided into (M*N+1)/2 light beam, the M*N/2 light beam after spectrum groupware 21
It is coupled in the first fiber array 31, then is finally put to the first amplification microscope group 41 by first by the output of the first fiber array 31
Big microscope group 41 reflects the left eye 60 into people；The laser that laser light source 12 issues is divided into (M*N-1)/2 after spectrum groupware 22
Light beam, the M*N/2 light beam coupling is into the second fiber array 32, then passes through the second fiber array 32 output to the second amplification
Microscope group 42 finally reflects the right eye 61 into people by the second amplification microscope group 42.
Specifically, laser light source 10 can be monochromatic laser light source or Multi Colour Lasers light source, for one-wavelength laser pipe light source
When, for showing monochrome image；When for Multi Colour Lasers light source, for showing monochrome image and multicolor image；Further, swash
Radiant 10 is specifically as follows three color laser light sources, for example, RGB laser light source etc., and lower mask body is with three color laser light sources
Example.
In the embodiment of the present application, the display visual field gray scale of the image information includes in the corresponding image of the image information
The gray scale of each pixel, according to the gray scale of the available pixel each into corresponding image of the image information,
Wherein the gray scale of each pixel is the gray scale of a display visual field, such as when the gray scale of 0 ° of visual field is corresponding pixel
The gray scale of point is, for example, a value in 0~255.
By taking laser light source 10 is a laser light source as an example, structure is specific as shown in figure 3, laser light source 10 includes red
Laser light source 101, green laser light source 102 and blue laser light source 103, wherein red laser light source 101 is for emitting red
Laser, green laser light source is for emitting green laser, and blue laser light source 103 is for emitting blue laser.
With continued reference to Fig. 3, laser light source 10 further includes collimation microscope group 104, bundling device 105, coupler 106 and coupling optical fiber
107, collimation microscope group 104 is set on the emitting light path of laser light source 10, and the laser for emitting laser light source 10 carries out quasi-
Straight processing, wherein collimation microscope group 104 includes collimating mirror 1041, collimating mirror 1042 and collimating mirror 1043, and collimating mirror 1041 is set to
On the emitting light path of red laser light source 101, for carrying out collimation processing to red laser；Collimating mirror 1042 is set to green and swashs
On the emitting light path of radiant 102, for carrying out collimation processing to green laser；Collimating mirror 1043 is set to blue laser light source
On 103 emitting light path, for carrying out collimation processing to blue laser.Certainly, laser light source 10 can also be by red laser
Light source 101, green laser light source 102, blue laser light source 103, bundling device 105, coupler 106 and coupling optical fiber 107 form,
And not comprising collimation microscope group 104, wherein coupling optical fiber 107 can be lens fibers optical fiber such as silica optical fiber.
With continued reference to Fig. 3, bundling device 105 is set on the emitting light path of collimation microscope group 104, for that will collimate microscope group 104
The laser of outgoing carries out closing beam processing, wherein bundling device 105 includes dichroscope 1051, dichroscope 1052 and dichroscope
1053, wherein dichroscope 1051 reflects feux rouges and transmission green light, and dichroscope 1052 transmits green light, and dichroscope 1053 is saturating
Red-green glow and reflection blue light are penetrated, to be an optical path by the Laser synthesizing that microscope group 104 issues is collimated, details are not described herein again
?.
With continued reference to Fig. 3, coupler 106 is set on the emitting light path of bundling device 106, for bundling device 105 to be emitted
Laser coupled to coupling optical fiber 107 in；Coupling optical fiber 107 be connected with coupler 106, couple optical fiber 107 be used for transmission by
The laser of coupler 106.
In the embodiment of the present application, when laser light source 10 includes S laser light source, the wherein structure of each laser light source
Specifically as shown in figure 3, details are not described herein again.
By taking spectrum groupware 20 is a spectrum groupware as an example, referring to Fig. 1, spectrum groupware 20 can be the light point of 1 M*N type
Road device 201, the optical splitter 201 of M*N type are integrated with M*N channel switch 202, and M*N channel switch 202 is described for controlling
M*N output channel being opened and disconnecting, and M*N channel switch 202 and the M*N output channel correspond；Certainly, divide
Optical assembly 20 can also be the optical splitter 201 and M*N channel switch 202 of 1 M*N type, wherein the channel switch can be with
It is that photoswitch or optical attenuator or light intensity modulator etc. can control output channel when the channel switch is photoswitch
It opens and disconnects；When the channel switch is optical attenuator, output channel can not only be controlled by the optical attenuator
It opens and disconnects, additionally it is possible to control the energy of output channel output beam, wherein when output channel is opened, light beam passes through defeated
Channel transfer is to fiber array 30 out；When output channel disconnects, light beam cannot be transmitted to fiber array 30 by output channel.
Wherein, when the channel switch is optical attenuator, the output of corresponding output channel is controlled by optical attenuator
Energy is 0, it can determines that the output channel has disconnected；If controlling the output energy of corresponding output channel by optical attenuator
Greater than 0, it can determine that the output channel is open-minded.
Specifically, referring to fig. 4, spectrum groupware 20 can also be first optical splitter 203 of 1 1*M type, M 1*N type
The second optical splitter 204 and M*N channel switch 202, the outgoing of the incidence end of the first optical splitter 203 and laser light source 10
End is connected, i.e., the incidence end of the first optical splitter 203 is connected with coupling optical fiber 107, M the second optical splitters 204 and the first light
M exit end of splitter 203 is connected one by one；M*N channel switch 202 is for controlling the open-minded of the M*N output channel
And disconnection, M*N channel switch 202 and the M*N output channel correspond, so that each output channel can lead to
It crosses corresponding channel switch and carrys out opening and disconnecting for the independent control output channel, wherein each output channel is a light
Fibre, so that M*N output channel 202 is M*N root optical fiber.
Wherein, spectrum groupware 20 is used for when the laser for exporting laser light source 10 is divided into M*N light beam by laser light source
The laser of 10 outputs is divided into M*N equal light beam of energy, such as the maximum output energy that red laser light source 101 is arranged is
ER, the ceiling capacity of the exit end outgoing of each output channel of final fiber optic splitter is ER/ after 20 beam splitting of spectrum groupware
(M*N), the energy of each fiber exit can show all tonal gradations of the corresponding image of the image information.Such as institute
The tonal gradation for stating the corresponding image of image information is 8, that is, has this 256 tonal gradations of 0-255, unit gray scale is corresponding red
Color laser energy demand is ER/ (M*N)/256, when the gray scale of described image is 255, then can be controlled by optical attenuator defeated
The energy of channel outgoing is ER/ (M*N) out；When the gray scale of described image is 160, then output channel is controlled by optical attenuator
The energy of outgoing is ER* (160+1)/(M*N)/256, for so that needed for the energy of output channel outgoing and the gray scale of image
Energy matches.
Certainly, when using photoswitch control fiber exit beam to realize 256 tonal gradations, photoswitch can be passed through
The opening time of output channel is controlled to realize, such as available optical fiber shows one in the corresponding image of the image information
The pixel duration of a pixel divides the pixel duration further according to the tonal gradation of described image, if the gray scale etc. of image
Grade is 8, that is, has this 256 tonal gradations of 0-255, then the pixel duration is divided into 256 sections, if the ash of the pixel of display
When degree is 160, then the when a length of pixel duration * (160+1)/256 that optical fiber shows the pixel is controlled.
Referring to Fig. 5, by taking second optical splitter 2041 in M the second optical splitters 204 as an example, the second optical splitter
2041 incidence end is connected with an exit end of the first optical splitter 203, the N number of exit end and 1* of the second optical splitter 2061
N number of channel switch 205 is connected one by one, and the output end of 1*N channel switch 205 can also connect N root decoupling optical fiber 206, is used for
Be connected with the optical fiber in fiber array 30, wherein 1*N channel switch 205 be used to control the second optical splitter 2041 it is N number of out
Opening and disconnecting for end is penetrated, that is, controls opening and disconnecting for N number of output channel of the second optical splitter 2041.
Specifically, fiber array 30 is arranged by M row N column close fiber optic, that is, it include M*N root optical fiber, the M*N are defeated
The light beam coupling of channel output is defeated by the M*N output channel into the M*N root optical fiber, then by the M*N root optical fiber out
Light beam out is deflected, and the light beam after deflection is projected to human eye, wherein the close arrangement is it per adjacent two optical fiber
Between interval be not more than pre-determined distance, the pre-determined distance sets according to the actual situation, and the pre-determined distance can be not small
In the value of 25 microns (um), for example, 25um, 30um and 35um etc., the application is not specifically limited.
Specifically, fiber array 30 can form a fibre faceplate referring to Fig. 1, further, fiber array 30 can be with
It is encapsulated in transparent substrate, the optical fiber in fiber array 30 is that bare fibre outer layer coats one layer of very thin transparent protective film i.e. coating
Layer, the gap between every adjacent two optical fiber is filled with material identical or approximate with the coat refractive index, so that outside
When boundary's environment light passes through the transparent substrate, the angle that external environmental light deflects in the transparent substrate is identical, so that user
The real external environment more really observed, wherein the transparent substrate is the substrate that transparency is greater than default transparency, institute
The value range for stating default transparency is 75%-100%, it can any one value between 75%-100%, for example,
75%, 85% and 100% etc..
In the embodiment of the present application, the corresponding pixel of an optical fiber in fiber array 30 is showing the image information
When corresponding image, the pixel in described image is carried out with optical fiber in fiber array 30 it is corresponding so that the nearly eye system
It can once show all pixels point in described image, it, can be by once showing i.e. when described image is monochrome image
It can show all pixels point of described image；It, can be by the way of timing to show when described image is color image
Image is stated, at this moment needs to show all pixels point of described image at least through display three times.
In the embodiment of the present application, when the channel switch is photoswitch, controller 50 is according to the aobvious of the image information
Show visual field gray scale, control opening and disconnecting for each output channel in spectrum groupware 20, specifically: control 50 is according to each picture
The gray scale of vegetarian refreshments chooses K*F output channel from the M*N output channel and controls its opening time, and will not be chosen
The output channel taken disconnects, wherein the K*F output channel is corresponding with each pixel, wherein controller 50 can be
Single-chip microcontroller, processing chip and control circuit etc..
Further, defeated at K*F since the M*N root optical fiber in fiber array 30 is coupled with the M*N output channel
When channel is opened out, the output beam of K*F output channel output can be transmitted to corresponding K*F root optical fiber, so that control
Device 50 controls the output beam of the K*F root optical fiber by corresponding photoswitch, and the light beam of output is projected to human eye,
When controlling the output beam of the K*F root optical fiber by corresponding photoswitch, controller 50 according to the gray scale of each pixel,
The duration of every optical fiber output light beam in the K*F root optical fiber is controlled, so that the light beam of output can show each pixel
The gray scale of point, and since K and F are positive integer, allow each moment to open multiple output channels, i.e., each moment can
To export the i.e. multiple pixels of multiple visual field light by multifiber, and the prior art each moment is only capable of displaying a pixel
Point, since the pixel of image is constant, and when the quantity of pixel of display of each moment increases, channel switch
Switching frequency will necessarily reduce, and so, it is possible the switching frequency that channel switch is effectively reduced, and frequency is switched within the unit time
In the case that rate reduces, capacity usage ratio can also be increased accordingly.
In the embodiment of the present application, when the channel switch is optical attenuator, controller 50 is according to the image information
It shows visual field gray scale, controls opening and disconnecting for each output channel in spectrum groupware 20, specifically: controller 50 is according to every
The gray scale of a pixel chooses K*F output channel from the M*N output channel and control wherein each output channel
Energy is exported, and unselected output channel is disconnected；Due in fiber array 30 M*N root optical fiber and the M*N it is defeated
Channel couples out, and when K*F output channel is opened, the output beam of K*F output channel output can be transmitted to corresponding
K*F root optical fiber so that controller 50 controls the output of every optical fiber in the K*F root optical fiber by corresponding optical attenuator
Energy, and the light beam of output is projected to human eye, wherein the output energy of each output channel in the K*F output channel
Or difference very little identical as energy needed for the gray scale of corresponding pixel is measured, and controls unselected output by optical attenuator
The output energy in channel is 0, so, it is possible to effectively improve the effect that image is shown.
In the embodiment of the present application, the outgoing end face of every optical fiber can be plane in fiber array 30, be also possible to curved surface,
Optical fiber can be lens fibers optical fiber such as silica optical fiber, this kind of optical fiber can obtain emergent light spot girdle the waist it is minimum
With the light beam of large-numerical aperture；When the exit end face of optical fiber has the concave curved surface of certain radian, concave curved surface meeting convergent beam makes
It must be projected to the hot spot reduction that the light beam of human eye generates, and then can be improved the effect that image is shown；In the outgoing end face of optical fiber
When convex surface with certain radian, convex surface can divergent beams so that the hot spot that the light beam for being projected to human eye generates increases, into
And the effect that image is shown is influenced to a certain extent；Preferably, the outgoing end face of every optical fiber is in the embodiment of the present application
Concave curved surface.
Certainly, it is to improve capacity usage ratio, reduces veiling glare caused by non-imaged light beam, by every light in the embodiment of the present application
Fine end face is set as curved surface, and the numerical aperture of the numerical aperture of the curved surface outgoing beam of every optical fiber and amplification microscope group 40
Match.
In the embodiment of the present application, the outgoing end face of fiber array 30 is arranged into cambered surface, the corresponding visual field of each optical fiber
A light field i.e. pixel, therefore display resolution determines that bore is bigger by the size (bore) and quantity of each optical fiber
Quantity is bigger, and display resolution is higher, conversely, then display resolution is lower；Optical fiber in fiber array 30 can be single-mode optics
The central area of fine and multimode fibre, fiber array 30 obtains higher display resolution with single mode optical fiber, and fringe region uses
Multimode fibre shows low resolution.
In the embodiment of the present application, the outgoing end face of fiber array 30 is overlapped with the optimal imaging curved surface of amplification microscope group 40, is had
Body, the optimal imaging curved surface of amplification microscope group 40 can be obtained according to magnifying glass image-forming principle, wherein the optimal imaging is bent
Face；Further according to the outgoing face size of every optical fiber in pre-set fiber array 30, by the optimal imaging Surface tessellation
Change, obtain position of the every optical fiber on the optimal imaging curved surface, every optical fiber is arranged according to the position, and then by optical fiber
The outgoing end face of array 30 is overlapped with the optimal imaging curved surface of amplification microscope group 40.
Specifically, according to magnifying glass image-forming principle, the optimal imaging curved surface of amplification microscope group 40 can be calculated, work as light
When the outgoing end face of fibre array 30 is overlapped with the optimal imaging curved surface, so that the light beam of the outgoing end face outgoing of fiber array 30
It is imaged after amplification microscope group 40 reflects, the outgoing end face that the clarity of imaging is far longer than fiber array 30 is set as the clear of plane
Clear degree.Further, what is formed due to the optimal imaging curved surface is the upright virtual image of amplification, so that the optimal imaging curved surface
In the focal length of amplification microscope group 40.
In the embodiment of the present application, what it is due to fiber exit is Gaussian beam, and the place that girdles the waist is light source eye point, optical fiber parameter
After determination, the beam waist position of optical fiber and the relative position of fiber exit end face be it is determining, when optical fiber arrangement, ensures every optical fiber
Beam waist position is located at a position on the optimal imaging curved surface, so, it is possible the clarity for further increasing imaging.
Specifically, as shown in fig. 6, the outgoing end face of fiber array 31 be curved surface, and with amplification microscope group 41 optimal imaging
Curved surface is overlapped, and the light beam that every optical fiber in fiber array 31 issues is cone-shaped beam, and the numerical aperture of every optical fiber with put
The numerical aperture of big microscope group 41 matches, so that the light beam that every optical fiber issues can be amplified received by microscope group 41 and roll over
It is incident upon human eye 60.
Continue as shown in fig. 6, the outgoing end face of every optical fiber in fiber array 31 is set as concave curved surface, concave curved surface can
Focal beam so that the hot spot that the light beam for being projected to human eye generates reduces, and then can be improved the effect that image is shown.
Similarly, the outgoing end face of fiber array 32 is also curved surface, and is overlapped with the optimal imaging curved surface of amplification microscope group 42, is had
Body structure is as shown in fig. 6, details are not described herein again.
Since fiber array 30 is packaged in the transparent substrate, external environmental light is allowed to pass through the transparent substrate
Human eye is refracted to amplification microscope group 40, to observe real external environment.
In actual application, near-eye display system provided by the embodiments of the present application be used as augmented reality display when,
Light modulation structure is set in the separate human eye side of fiber array 30, the light modulation structure is specially polymer dispersed liquid crystals
(Polymer Dispersed Liquid Crystal, referred to as: PDLC) film layer and for controlling the pdlc film layer power on/off
Photoswitch；Using showing virtual image and real external environment at times；If the refresh rate of human eye is 30Hz, by the refresh rate
The corresponding period is divided into 2 sections, for a period of time for showing virtual image, makes the photoswitch of pdlc film layer disconnected in this time
It opens, so that pdlc film layer is in opaque state；Another a period of time for observing real external environment, makes pdlc film in this time
The photoswitch of layer is open-minded, to apply voltage to pdlc film layer, makes its transparent state, external environmental light is passed through
Pdlc film layer and the transparent substrate；In this way, external environmental light is enabled to lead to again by pdlc film layer and the transparent substrate
It crosses amplification microscope group 40 and is refracted into human eye, real external environment is observed in realization.
It is, of course, also possible to which the refresh rate corresponding period is divided at least 3 sections, one or more snippets time therein is used
In display virtual image, remaining at least a period of time is for observing real external environment.
Beneficial effects of the present invention are as follows:
Based on the above-mentioned technical proposal, the outgoing end face of fiber array is curved surface in the embodiment of the present invention, meets the amplification
The imaging surface face type of microscope group, when being amplified using inverse light path principle, the image that the outgoing end face of the fiber array issues is through amplifying
It is imaged after microscope group refraction, so that fringe region imaging remains to be apparent, and then can be improved the clarity of imaging, and the light
The outgoing end face of fibre array is arranged in the focal length of amplification microscope group, so that being imaged as amplifying the upright virtual image after refraction, can make
It must show that visual field increases, it follows that the embodiment of the present application can effectively improve marginal zone in the case where ensuring to show visual field
The clarity of domain imaging, so that the clarity of magnifying glass group imaging also increases accordingly.
Embodiment two:
Second aspect of the embodiment of the present invention provides a kind of virtual reality device, and the nearly eye including such as first aspect introduction is aobvious
Show system.
The specific structure and operational process of near-eye display system have been described in detail in first aspect, herein just no longer
It repeats.
Specifically, the virtual reality device can also include shell, the near-eye display system is arranged in the shell
In.
Embodiment three:
The third aspect of the embodiment of the present invention provides a kind of augmented reality equipment, and the nearly eye including such as first aspect introduction is aobvious
Show that system, external environmental light enter human eye by the amplification microscope group in the near-eye display system.
The specific structure and operational process of near-eye display system are described in detail in the first aspect, herein just not
It repeats again.
Specifically, the augmented reality equipment can also include shell, first near-eye display system and described second
Near-eye display system is respectively provided in the housing.
Specifically, fiber array 30 is encapsulated in transparent substrate in the augmented reality equipment, so that external environmental light can
To refract to human eye by the transparent substrate and amplification microscope group 40, to observe real external environment.
In actual application, the augmented reality equipment further includes being arranged in the separate human eye side of fiber array 30
Light modulation structure, the light modulation structure are specially pdlc film layer and the photoswitch for controlling the pdlc film layer power on/off；Using
Virtual image and real external environment are shown at times；If the refresh rate of human eye is 30Hz, by the refresh rate corresponding period
It is divided into 2 sections, for a period of time for showing virtual image, disconnects the photoswitch of pdlc film layer in this time, so that pdlc film
Layer is in opaque state；Another a period of time for observing real external environment, opens the photoswitch of pdlc film layer in this time
It is logical, to apply voltage to pdlc film layer, make its transparent state, external environmental light is enabled to pass through pdlc film layer and described
Transparent substrate；In this way, external environmental light is enabled to pass through amplification 40 folding of microscope group again by pdlc film layer and the transparent substrate
It injects into human eye, real external environment is observed in realization.
It is, of course, also possible to which the refresh rate corresponding period is divided at least 3 sections, one or more snippets time therein is used
In display virtual image, remaining at least a period of time is for observing real external environment.
Beneficial effects of the present invention are as follows:
Based on the above-mentioned technical proposal, the outgoing end face of fiber array is curved surface in the embodiment of the present invention, meets the amplification
The imaging surface face type of microscope group, when being amplified using inverse light path principle, the image that the outgoing end face of the fiber array issues is through amplifying
It is imaged after microscope group refraction, so that fringe region imaging remains to be apparent, and then can be improved the clarity of imaging, and the light
The outgoing end face of fibre array is arranged in the focal length of amplification microscope group, so that being imaged as amplifying the upright virtual image after refraction, can make
It must show that visual field increases, it follows that the embodiment of the present application can effectively improve marginal zone in the case where ensuring to show visual field
The clarity of domain imaging, so that the clarity of magnifying glass group imaging also increases accordingly.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of near-eye display system, which is characterized in that including laser light source, spectrum groupware, fiber array, amplification microscope group and control
Device processed, the spectrum groupware include M*N output channel, and the outgoing end face of the fiber array is curved surface, and the optical fiber array
The outgoing end face of column is arranged in the focal length of the amplification microscope group, and M and N are the integer not less than 2；
The laser light source is used to export the laser modulated according to image information；Described in the laser of the laser light source output passes through
After spectrum groupware, it is divided into M*N light beam；The controller is electrically connected the spectrum groupware, for being believed according to the image
The display visual field gray scale of breath, controls the opening and closing of each output channel in the spectrum groupware；In the fiber array
Optical fiber is coupled with the M*N output channel, is used for transmission the output beam exported from the spectrum groupware；The amplification microscope group
It is arranged on the emitting light path of the fiber array, the output beam for the fiber array to be emitted refracts to people
Eye,
The outgoing end face of the fiber array is overlapped with the optimal imaging curved surface of the amplification microscope group, specifically:
According to magnifying glass image-forming principle, the optimal imaging curved surface of the amplification microscope group is obtained；Further according to the pre-set light
The outgoing face size of every optical fiber in fibre array, by the optimal imaging Surface tessellation, obtain every optical fiber it is described most
Position on good imaging curved surface arranges every optical fiber according to the position.
2. the system as claimed in claim 1, which is characterized in that the laser light source include three color laser light sources, collimation microscope group,
Bundling device, coupler and coupling optical fiber, wherein the three colors laser light source exports three color laser；The collimation microscope group is set to
On the emitting light path of the three colors laser light source, for carrying out collimation processing to the three colors laser；The bundling device is set to
On the emitting light path of the collimation microscope group, for carrying out the laser of the collimation microscope group outgoing to close beam processing；The coupler
It is set on the emitting light path of the bundling device, the laser coupled for the bundling device to be emitted is into the coupling optical fiber；
The coupling optical fiber is connected with the coupler, and the coupling optical fiber is used for transmission the laser by the coupler.
3. the system as claimed in claim 1, which is characterized in that the fiber array is arranged by M row N column close fiber optic.
4. the system as claimed in claim 1, which is characterized in that the spectrum groupware includes first optical splitter of 1 1*M type
It is connected with the incidence end of the second optical splitter of M 1*N type, first optical splitter with the exit end of the laser light source,
The M the second optical splitters are connected one by one with M exit end of first optical splitter.
5. the system as claimed in claim 1, which is characterized in that the spectrum groupware includes first optical branching of 1 1*M type
The second optical splitter and M*N channel switch of device, M 1*N type, the incidence end and the laser light of first optical splitter
The exit end in source is connected, and the M the second optical splitters are connected one by one with M exit end of first optical splitter；It is described
M*N channel switch is used to control the opening and closing of the M*N output channel, the M*N channel switch and the M*N
A output channel corresponds.
6. the system as claimed in claim 1, which is characterized in that the spectrum groupware includes the optical splitter of 1 M*N type, institute
The optical splitter for stating M*N type is integrated with M*N channel switch, and the M*N channel switch is logical for controlling the M*N output
The opening and closing in road, the M*N channel switch and the M*N output channel correspond.
7. the system as claimed in claim 1, which is characterized in that the beam waist position of every optical fiber in the fiber array with
One position of the optimal imaging curved surface is overlapped.
8. such as the described in any item systems of claim 1-7, which is characterized in that the end face of every optical fiber in the fiber array
It is arranged to curved surface, the numerical aperture of the curved surface outgoing beam of every optical fiber and the numerical aperture of the amplification microscope group match.
9. a kind of virtual reality device, which is characterized in that show system including the nearly eye as described in claim any in claim 1-8
System.
10. a kind of augmented reality equipment, which is characterized in that shown including the nearly eye as described in claim any in claim 1-8
System, external environmental light enter human eye by the amplification microscope group in the near-eye display system.
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| CN107092093A (en) * | 2017-06-16 | 2017-08-25 | 北京灵犀微光科技有限公司 | Waveguide display device |
| CN108646412B (en) | 2018-05-10 | 2021-05-14 | 京东方科技集团股份有限公司 | Near-eye display device and near-eye display method |
| CN110262038B (en) * | 2019-06-06 | 2022-06-21 | 歌尔光学科技有限公司 | Optical system and virtual reality equipment with same |
| CN110850521A (en) * | 2019-12-03 | 2020-02-28 | 京东方科技集团股份有限公司 | Optical waveguide and AR or VR equipment |
| 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 |
| TWI812406B (en) * | 2022-08-16 | 2023-08-11 | 張朝凱 | Augmented reality device that can fine-tune sharp artificially generated images for left and right eyes separately |
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| CN100426024C (en) * | 2004-08-07 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber display |
| US7369320B2 (en) * | 2005-12-30 | 2008-05-06 | 3M Innovative Properties Company | Projection system with beam homogenizer |
| CN101299078B (en) * | 2007-04-30 | 2012-10-17 | 黄峰彪 | Method for manufacturing complete view angle display apparatus |
| JP5494153B2 (en) * | 2010-04-08 | 2014-05-14 | ソニー株式会社 | Image display method for head mounted display |
| JP5919885B2 (en) * | 2012-02-28 | 2016-05-18 | セイコーエプソン株式会社 | Virtual image display device |
| CN103323947A (en) * | 2012-03-19 | 2013-09-25 | 江苏慧光电子科技有限公司 | Head up display device based on laser holographic projection imaging |
| CN202710871U (en) * | 2012-06-28 | 2013-01-30 | 黄明传 | Glasses with interface transmission processing function |
| US9395543B2 (en) * | 2013-01-12 | 2016-07-19 | Microsoft Technology Licensing, Llc | Wearable behavior-based vision system |
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