CN105892064A - Near-to-eye display system, virtual reality equipment and enhanced reality equipment - Google Patents
Near-to-eye display system, virtual reality equipment and enhanced reality equipment Download PDFInfo
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- CN105892064A CN105892064A CN201610510978.1A CN201610510978A CN105892064A CN 105892064 A CN105892064 A CN 105892064A CN 201610510978 A CN201610510978 A CN 201610510978A CN 105892064 A CN105892064 A CN 105892064A
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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
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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
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
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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
- G02B2027/0112—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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Abstract
The invention discloses a near-to-eye display system, virtual reality equipment and enhanced reality equipment. The near-to-eye display system comprises a laser light source, a light splitting assembly, an optical fiber array, a magnifying glass set and a controller, wherein the light splitting assembly comprises M*N output channels; an outgoing end face of the optical fiber array is a curved surface; the outgoing end face of the optical fiber array is arranged in a focal distance of the magnifying glass set; after laser output by the laser light source passes through the light splitting assembly, the laser is split into M*N light beams; the controller is electrically connected with the light splitting assembly and is used for controlling the opening and closing of each output channel in the light splitting assembly according to a gray scale of a display view field of image information; optical fibers in the optical fiber array are coupled with the M*N output channels and are used for transmitting output light beams which are output from the light splitting assembly; the magnifying glass set is arranged on an outgoing light path of the optical fiber array and is used for refracting the output light beams emitted by the optical fiber array to human eyes.
Description
Technical field
The present invention relates to technical field of computer vision, particularly relate to a kind of near-eye display system, virtual reality
Equipment and augmented reality equipment.
Background technology
Along with developing rapidly of computer vision technique so that augmented reality and virtual reality technology also with
Develop rapidly.Augmented reality is typically based on and images the actual physical ring that first-class image capture device obtains
Border image, by computer system discriminatory analysis and query and search, by exist therewith association content of text,
The virtual image of the virtual generation such as picture material or iconic model shows in actual physical situation image, thus
The related expanding letters such as the mark of real-world object, the explanation allowing users to obtain in the real physical environment being in
Breath, or experience the enhancing visual effect three-dimensional, that highlight of real-world object in reality physical environment.
And virtual reality technology is a kind of can establishment and the computer simulation system in the experiencing virtual world, it utilizes meter
Calculation machine generates a kind of simulated environment, and this simulated environment can pass through the feedback sides such as vision, audition, sense of touch simultaneously
Formula so that user is immersed in the virtual world that simulated environment shows.
Existing augmented reality and virtual reality technology, in order to show bigger display visual field, can use
Magnifier group carrys out imaging, but when carrying out imaging by magnifier group, can there is aberration, and the existence of aberration,
After image display source amplified mirror group is amplified, central area imaging clearly and marginal area imaging mould occur
Situation about sticking with paste so that prior art is when using magnifier group to carry out imaging, and the definition that there is imaging is low
Technical problem.
Summary of the invention
The present invention provides a kind of near-eye display system, virtual reality device and augmented reality equipment, puts in use
Big mirror composition as time, it is possible to be effectively improved the definition of marginal area imaging so that magnifier composition picture clear
Clear degree improves the most therewith.
Embodiment of the present invention first aspect provides a kind of near-eye display system, including LASER Light Source, light splitting group
Part, fiber array, magnifier group and controller, described spectrum groupware includes M*N output channel, institute
The outgoing end face stating fiber array is curved surface, and the outgoing end face of described fiber array is arranged on described magnifier
In the focal length of group, M and N is the integer not less than 2；
The laser that described LASER Light Source is modulated according to image information for output；Swashing of described LASER Light Source output
Light, after described spectrum groupware, is divided into M*N light beam；Described controller is electrically connected with described light splitting
Assembly, for the display visual field gray scale according to described image information, controls each output in described spectrum groupware
The opening and closing of passage；Optical fiber in described fiber array couples with described M*N output channel, uses
In the output beam that transmission exports from described spectrum groupware；Described magnifier group is arranged on described fiber array
On emitting light path, for the described output beam of described fiber array outgoing is refracted to human eye.
Optionally, described LASER Light Source include trichroism LASER Light Source, collimating mirror group, bundling device, bonder and
Coupling optical fiber, wherein, described trichroism LASER Light Source exports trichroism laser；Described collimation lens set is arranged at institute
State on the emitting light path of trichroism LASER Light Source, for described trichroism laser is carried out collimation process；Described conjunction is restrainted
Device is arranged on the emitting light path of described collimation lens set, for being entered by the laser of described collimation lens set outgoing
Row closes bundle and processes；Described bonder is arranged on the emitting light path of described bundling device, for by described bundling device
The laser coupled of outgoing is in described coupling optical fiber；Described coupling optical fiber is connected with described bonder, described coupling
Close optical fiber for being transferred through the laser of described bonder.
Optionally, described fiber array is formed by the arrangement of M row N row close fiber optic.
Optionally, described spectrum groupware includes the first optical branching device of 1 1*M type and M 1*N type
Second optical branching device, the incidence end of described first optical branching device is connected with the exit end of described LASER Light Source, institute
State M the second optical branching device to be connected one by one with M exit end of described first optical branching device.
Optionally, described spectrum groupware includes the first optical branching device of 1 1*M type, M 1*N type
Second optical branching device and M*N channel switching, the incidence end of described first optical branching device and described laser light
The exit end in source is connected, described M the second optical branching device and M exit end of described first optical branching device
It is connected one by one；Described M*N channel switching is used for controlling the opening and closing of described M*N output channel,
Described M*N channel switching and described M*N output channel one_to_one corresponding.
Optionally, described spectrum groupware includes the optical branching device of 1 M*N type, the light of described M*N type
Shunt is integrated with M*N channel switching, and described M*N channel switching is used for controlling described M*N
The opening and closing of output channel, described M*N channel switching and described M*N output channel one a pair
Should.
Optionally, the outgoing end face of described fiber array overlaps with the optimal imaging curved surface of described magnifier group.
Optionally, the outgoing end face of described fiber array overlaps with the optimal imaging curved surface of described magnifier group,
Particularly as follows:
According to magnifier image-forming principle, obtain the optimal imaging curved surface of described magnifier group；Further according to setting in advance
The outgoing face size of every optical fiber in the described fiber array put, by described optimal imaging Surface tessellation,
Obtain every optical fiber position on described optimal imaging curved surface, arrange every optical fiber according to described position.
Optionally, the beam waist position of every optical fiber in described fiber array all with described optimal imaging curved surface
One position overlaps.
Optionally, the end face of every optical fiber in described fiber array is arranged to curved surface, the curved surface of every optical fiber
The numerical aperture of outgoing beam matches with the numerical aperture of described magnifier group.
Embodiment of the present invention second aspect provides a kind of virtual reality device, introduces including such as first aspect
Near-eye display system.
The embodiment of the present invention third aspect provides a kind of augmented reality equipment, introduces including such as first aspect
Near-eye display system, external environmental light enters human eye by the magnifier group in described near-eye display system.
Beneficial effects of the present invention is as follows:
Based on technique scheme, in the embodiment of the present invention, the outgoing end face of fiber array is curved surface, meets institute
State the imaging surface face type of magnifier group, when using inverse light path principle to amplify, the outgoing end face of described fiber array
Imaging after the image amplified mirror group refraction sent so that marginal area imaging remains to be apparent from, Jin Erneng
Enough improve the definition of imaging, and the outgoing end face of described fiber array be arranged in the focal length of magnifier group,
It is imaged as amplifying the upright virtual image after making refraction, it is possible to make to show that visual field increases, it follows that this Shen
Please embodiment show in the case of visual field guaranteeing, it is possible to be effectively improved the definition of marginal area imaging, make
The definition obtaining magnifier composition picture improves the most therewith.
Accompanying drawing explanation
Fig. 1 is the first structural representation of near-eye display system in the embodiment of the present invention；
Fig. 2 is the second structural representation of near-eye display system in the embodiment of the present invention；
Fig. 3 is the structural representation of LASER Light Source in the embodiment of the present invention；
Fig. 4 is the attachment structure figure of LASER Light Source and spectrum groupware in the embodiment of the present invention；
Fig. 5 is the structural representation of the second optical branching device 2041 in the embodiment of the present invention；
Fig. 6 be the outgoing end face of fiber array in the embodiment of the present invention be beam Propagation schematic diagram during curved surface.
In accompanying drawing, relevant labelling is as follows:
10 LASER Light Sources, 11 LASER Light Sources, 12 LASER Light Sources, 101 red lasers
Light source, 102 green laser light source, 103 blue laser light source, 104 collimating mirror groups, 1041
Collimating mirror group, 1042 collimating mirror groups, 1043 collimating mirror groups, 105 bundling devices, 1051
Dichroic mirror, 1052 dichroic mirrors, 1053 dichroic mirrors, 106 bonders, 107
Coupling optical fiber, 20 spectrum groupware, 21 spectrum groupware, 22 spectrum groupware, 201
The optical branching device of M*N type, 202 M*N channel switching, the first light of 203 1*M types divides
Road device, the second optical branching device of 204 M 1*N types, 2,041 second optical branching devices, 205
1*N channel switching, 206 N root decoupling optical fiber, 30 fiber arrays, 31 first optical fiber
Array, 32 second fiber arrays, 40 magnifier groups, 41 first magnifier groups, 42
Second magnifier group, 50 controllers, 60 left eyes, 61 right eyes.
Detailed description of the invention
The present invention provides a kind of near-eye display system, virtual reality device and augmented reality equipment, puts in use
Big mirror composition as time, it is possible to be effectively improved the definition of marginal area imaging so that magnifier composition picture clear
Clear degree improves the most therewith.
Below in conjunction with the accompanying drawings the preferred embodiment of the present invention is described in detail.
As it is shown in figure 1, first aspect present invention provides a kind of near-eye display system, including LASER Light Source 10,
Spectrum groupware 20, fiber array 30, magnifier group 40 and controller 50, spectrum groupware 20 includes M*N
Individual output channel, the outgoing end face of fiber array 30 is curved surface, and the outgoing end face of fiber array 30 is arranged
In the focal length of magnifier group 40, M and N is the integer not less than 2；
The laser that LASER Light Source 10 is modulated according to image information for output；The laser of LASER Light Source 10 output
After spectrum groupware 20, it is divided into M*N light beam；Controller 50 is electrically connected with spectrum groupware 20,
For the display visual field gray scale according to described image information, control each output channel in spectrum groupware 20
Open and close；Optical fiber in fiber array 30 couples with described M*N output channel, for transmission from
The output beam of spectrum groupware 20 output；Magnifier group 40 is arranged on the emitting light path of fiber array 30,
For the described output beam of fiber array 30 outgoing is refracted to human eye, described human eye includes the left eye of people
60 and right eye 61.
Owing to the outgoing end face of fiber array 30 is arranged in the focal length of magnifier group 40 so that magnifier group
40 when refracting to human eye by the described output beam of fiber array 30 outgoing, is formed and amplifies the upright virtual image,
So, it is possible to increase so that the display visual field of described near-eye display system, and the display area of image also can be with
Increase.
And, according to the optical imaging concept of magnifier group 40, due to the existence of aberration, its imaging surface is not
It is preferable plane, but curved surface, when using inverse light path principle to amplify, plane image display source is amplified
After mirror group is amplified, central area imaging clearly and the situation of marginal area image blur occur.If image shows
Source is curved surface, meets the imaging surface face type of magnifier group 40, when using inverse light path principle to amplify, and curved face type
After image display source amplified mirror group is amplified so that marginal area imaging remains to be apparent from, and the present invention is real
The outgoing end face executing fiber array 30 in example is curved surface, meets the imaging surface face type of magnifier group 40, so,
Enable to can be effectively improved when using magnifier group 40 imaging the definition of marginal area imaging so that
The definition of magnifier composition picture improves the most therewith.
With continued reference to Fig. 1, magnifier group 40 can be divided into two groups, wherein the corresponding people of the first magnifier group 41
Left eye 60, the right eye 61 of the second corresponding people of magnifier group 42；Certainly, magnifier group 40 can also be
One group of magnifier composition, the application is not specifically limited.
In the embodiment of the present application, LASER Light Source 10 can also include S LASER Light Source, the most each laser
The corresponding spectrum groupware of light source, by corresponding spectrum groupware by the laser of described S LASER Light Source outgoing
It is divided into M*N light beam；Due to the corresponding spectrum groupware of each LASER Light Source so that spectrum groupware 20 is also
Including S spectrum groupware；And the corresponding fiber array of each spectrum groupware so that fiber array 30
Also including S fiber array, wherein, S is the integer not less than 2, in detail below as a example by S=2.
As in figure 2 it is shown, LASER Light Source 10 is made up of LASER Light Source 11 and LASER Light Source 12；In like manner, divide
Optical assembly 20 is also made up of spectrum groupware 21 and spectrum groupware 22, and fiber array 30 is also by the first light
Fibre array 31 and the second fiber array 32 form.
Concrete, when the integral multiple that M*N is 2, the laser that LASER Light Source 11 sends is through spectrum groupware 21
After, it is divided into M*N/2 light beam, in described M*N/2 light beam coupling to the first fiber array 31, then
Exported to the first magnifier group 41 by the first fiber array 31, finally by the first magnifier group 41 reflect into
The left eye 60 of people；The laser that LASER Light Source 12 sends, after spectrum groupware 22, is divided into M*N/2 light
Bundle, in described M*N/2 light beam coupling to the second fiber array 32, then by the second fiber array 32
Output, to the second magnifier group 42, is finally reflected the right eye 61 into people by the second magnifier group 42；When
When M*N is odd number, the laser that LASER Light Source 11 sends, after spectrum groupware 21, is divided into (M*N+1)
/ 2 light beams, in described M*N/2 light beam coupling to the first fiber array 31, then by the first optical fiber array
Row 31 export to the first magnifier group 41, are finally reflected the left eye 60 into people by the first magnifier group 41；
The laser that LASER Light Source 12 sends, after spectrum groupware 22, is divided into (M*N-1)/2 light beam, described
M*N/2 light beam coupling is in the second fiber array 32, then is exported to second by the second fiber array 32
Magnifier group 42, is finally reflected the right eye 61 into people by the second magnifier group 42.
Concrete, LASER Light Source 10 can be monochromatic laser light source or Multi Colour Lasers light source, is swashing for monochromatic
During light pipe light source, it is used for showing monochrome image；When for Multi Colour Lasers light source, be used for showing monochrome image and
Multicolor image；Further, LASER Light Source 10 be specifically as follows trichroism LASER Light Source, for example, RGB swash
Radiants etc., in detail below as a example by trichroism LASER Light Source.
In the embodiment of the present application, the display visual field gray scale of described image information includes that described image information is corresponding
The gray scale of each pixel in image, can get in corresponding image every according to described image information
The gray scale of individual pixel, the gray scale of the most each pixel is the gray scale of a display visual field, such as when 0 °
The gray scale of visual field is a value in the gray scale for example, 0～255 of corresponding pixel.
Being as a example by a LASER Light Source by LASER Light Source 10, its structure is concrete as it is shown on figure 3, LASER Light Source
10 include red laser light source 101, green laser light source 102 and blue laser light source 103, wherein, red
Color LASER Light Source 101 is for transmitting red laser beam, and green laser light source is used for transmitting green laser, blue sharp
Radiant 103 is used for launching blue laser.
With continued reference to Fig. 3, LASER Light Source 10 also includes collimating mirror group 104, bundling device 105, bonder 106
With coupling optical fiber 107, collimating mirror group 104 is arranged on the emitting light path of LASER Light Source 10, for laser
The laser that light source 10 is launched carries out collimation process, and wherein, collimating mirror group 104 includes collimating mirror 1041, standard
Straight mirror 1042 and collimating mirror 1043, collimating mirror 1041 is arranged on the emitting light path of red laser light source 101,
For red laser is carried out collimation process；Collimating mirror 1042 is arranged at the outgoing of green laser light source 102
In light path, for green laser is carried out collimation process；Collimating mirror 1043 is arranged at blue laser light source 103
Emitting light path on, for blue laser is carried out collimation process.Certainly, LASER Light Source 10 can also is that
By red laser light source 101, green laser light source 102, blue laser light source 103, bundling device 105, coupling
Clutch 106 and coupling optical fiber 107 form, and do not comprise collimating mirror group 104, wherein, couple optical fiber 107
It can be lens fibers optical fiber such as silicon dioxide optical fibers.
With continued reference to Fig. 3, bundling device 105 is arranged on the emitting light path of collimating mirror group 104, for by standard
The laser of straight mirror group 104 outgoing carries out closing bundle and processes, wherein, bundling device 105 include dichroic mirror 1051,
Dichroic mirror 1052 and dichroic mirror 1053, wherein, dichroic mirror 1051 reflects HONGGUANG and transmission green glow,
Dichroic mirror 1052 transmission green glow, dichroic mirror 1053 transmission red-green glow and reflection blue light, thus will collimation
The Laser synthesizing that mirror group 104 sends is a light path, just repeats no more at this.
With continued reference to Fig. 3, bonder 106 is arranged on the emitting light path of bundling device 106, for conjunction being restrainted
The laser coupled of device 105 outgoing is to coupling in optical fiber 107；Coupling optical fiber 107 is connected with bonder 106,
Coupling optical fiber 107 is for being transferred through the laser of bonder 106.
In the embodiment of the present application, when LASER Light Source 10 includes S LASER Light Source, each of which laser
The structure of light source is concrete as it is shown on figure 3, just repeat no more at this.
Being as a example by a spectrum groupware by spectrum groupware 20, see Fig. 1, spectrum groupware 20 can be 1
The optical branching device 201 of M*N type, the optical branching device 201 of M*N type is integrated with M*N channel switching 202,
M*N channel switching 202 is for controlling opening and disconnecting of described M*N output channel, and M*N logical
Road switch 202 and described M*N output channel one_to_one corresponding；Certainly, spectrum groupware 20 can also is that 1
The optical branching device 201 of individual M*N type and M*N channel switching 202, wherein, described channel switching is permissible
It is photoswitch or optical attenuator or light intensity modulator etc., when described channel switching is photoswitch, it is possible to control
The opening and disconnect of output channel；When described channel switching is optical attenuator, by described optical attenuator not
It is only capable of and controls opening and disconnecting of output channel, additionally it is possible to control the energy of output channel output beam, its
In, when output channel is opened, light beam is transmitted to fiber array 30 by output channel；Break in output channel
When opening, light beam can not be transmitted to fiber array 30 by output channel.
Wherein, when described channel switching is optical attenuator, control corresponding output channel by optical attenuator
Output energy be 0, i.e. may determine that this output channel disconnects；If controlling correspondence by optical attenuator
The output energy of output channel is more than 0, i.e. may determine that this output channel is the most open-minded.
Specifically, seeing Fig. 4, spectrum groupware 20 can also is that the first optical branching device of 1 1*M type
203, the second optical branching device 204 of M 1*N type and M*N channel switching 202, the first optical branching device
The incidence end of 203 is connected with the exit end of LASER Light Source 10, the incidence end of the i.e. first optical branching device 203 and coupling
Close optical fiber 107 to be connected, M the second optical branching device 204 and M exit end of the first optical branching device 203
It is connected one by one；M*N channel switching 202 is used for controlling opening and disconnecting of described M*N output channel,
M*N channel switching 202 and described M*N output channel one_to_one corresponding, and then each output is led to
Road can independently control opening and disconnecting of this output channel by corresponding channel switching, wherein, each
Output channel is an optical fiber so that M*N output channel 202 is M*N root optical fiber.
Wherein, spectrum groupware 20, when the laser that LASER Light Source 10 exports is divided into M*N light beam, is used
In the laser that LASER Light Source 10 exports being divided into M*N the light beam that energy is equal, such as red laser light source
101 maximum output energies arranged are ER, and after spectrum groupware 20 beam splitting, final fiber optic splitter is each
The ceiling capacity of the exit end outgoing of output channel is ER/ (M*N), and the energy of each fiber exit can
Show all tonal gradations of the image that described image information is corresponding.The image that the most described image information is corresponding
Tonal gradation be 8, i.e. have these 256 tonal gradations of 0-255, the red laser that unit gray scale is corresponding
Energy demand is ER/ (M*N)/256, when the gray scale of described image is 255, then can pass through light decay
The energy subtracting device control output channel outgoing is ER/ (M*N)；When the gray scale of described image is 160, then
The energy being controlled output channel outgoing by optical attenuator is ER* (160+1)/(M*N)/256, is used for
Needed for making the energy of this output channel outgoing and the gray scale of image, energy matches.
Certainly, when using photoswitch control fiber exit beam to realize 256 tonal gradations, Ke Yitong
The unlatching duration crossing photoswitch control output channel realizes, such as, can obtain optical fiber and show that described image is believed
The pixel duration of a pixel in the image that breath is corresponding, the tonal gradation further according to described image divides
Described pixel duration, if the tonal gradation of image is 8, i.e. has these 256 tonal gradations of 0-255, then
Described pixel duration is divided into 256 sections, if the gray scale of the pixel of display is 160, then controls optical fiber and show
Show time a length of described pixel duration * (160+1)/256 of this pixel.
See Fig. 5, as a example by second optical branching device 2041 in M the second optical branching device 204,
The incidence end of the second optical branching device 2041 is connected with an exit end of the first optical branching device 203, the second light
N number of exit end of shunt 2061 is connected one by one with 1*N channel switching 205,1*N channel switching
The outfan of 205 can also connect N root decoupling optical fiber 206, for being connected with the optical fiber in fiber array 30,
Wherein, 1*N channel switching 205 is for controlling the open-minded of N number of exit end of the second optical branching device 2041
And disconnection, i.e. control the opening and disconnect of N number of output channel of the second optical branching device 2041.
Concrete, fiber array 30 is formed by the arrangement of M row N row close fiber optic, i.e. includes M*N root light
Fibre, the light beam coupling of described M*N output channel output is entered described M*N root optical fiber, then is passed through described
The light beam of described M*N output channel output is deflected by M*N root optical fiber, is thrown by the light beam after deflection
Being incident upon human eye, wherein, described tight arrangement is that the interval between the most adjacent two optical fiber is not more than predeterminable range,
Described predeterminable range sets according to practical situation, and described predeterminable range can be not less than 25 microns (um)
Value, for example, 25um, 30um and 35um etc., the application is not specifically limited.
Concrete, seeing Fig. 1, fiber array 30 can form a fibre faceplate, further, optical fiber
Array 30 can be encapsulated in transparency carrier, and the optical fiber in fiber array 30 is that bare fibre outer layer coats one layer
Very thin transparent protective film i.e. coat, the space between the most adjacent two optical fiber reflects with described coat
Identical or approximation the material of rate is filled, during so that external environmental light is through described transparency carrier, and external environment
The angle that light deflects in described transparency carrier is identical so that the extraneous ring of reality that user observes more really
Border, wherein, described transparency carrier is the substrate that transparency is more than default transparency, described default transparency
Span is 75%-100%, can think any one value between 75%-100%, for example, 75%,
85% and 100% etc..
In the embodiment of the present application, in fiber array 30, a corresponding pixel of optical fiber, described in display
During image corresponding to image information, it is right the pixel in described image and optical fiber in fiber array 30 to be carried out
Should so that described nearly eye system once can show all pixels in described image, at described image is
During monochrome image, can be shown all pixels of described image by once display；At described image
During for coloured image, described image can be shown in the way of using sequential, at this moment need at least through three times
Display can show all pixels of described image.
In the embodiment of the present application, when described channel switching is photoswitch, controller 50 is according to described image
The display visual field gray scale of information, controls opening and disconnecting of each output channel in spectrum groupware 20, tool
Body is: control 50, according to the gray scale of each pixel, chooses K*F from described M*N output channel
Output channel also controls its unlatching duration, and unselected output channel is disconnected, wherein, and described K*F
Individual output channel is corresponding with each pixel, and wherein, controller 50 can be single-chip microcomputer, process chip
With control circuit etc..
Further, due to the M*N root optical fiber in fiber array 30 and described M*N output channel coupling
Close, when K*F output channel is opened, the output beam that K*F output channel exports can transmit to its
Corresponding K*F root optical fiber so that controller 50 controls described K*F root optical fiber by corresponding photoswitch
Output beam, and the light beam of output is projected to human eye, is controlling described K*F by corresponding photoswitch
During the output beam of root optical fiber, controller 50, according to the gray scale of each pixel, controls described K*F root light
The duration of every optical fiber output beam in fibre, and then make the light beam of output can show the ash of each pixel
Degree, and owing to K and F is positive integer so that each moment can open multiple output channel, the most often
One moment can export multiple visual fields the most multiple pixel of light by multifiber, and prior art per a period of time
It is only capable of displaying a pixel quarter, owing to the pixel of image is constant, and the picture shown in each moment
During the increasing number of vegetarian refreshments, the switching frequency of its channel switching will necessarily reduce, and so, it is possible effectively to reduce
The switching frequency of channel switching, and within the unit interval in the case of switching frequency reduction, its Energy harvesting
Rate also can improve therewith.
In the embodiment of the present application, when described channel switching is optical attenuator, controller 50 is according to described image
The display visual field gray scale of information, controls opening and disconnecting of each output channel in spectrum groupware 20, tool
Body is: controller 50, according to the gray scale of each pixel, chooses K*F from described M*N output channel
Individual output channel the output energy of the most each output channel of control, and unselected output channel is broken
Open；Owing to the M*N root optical fiber in fiber array 30 couples, at K*F with described M*N output channel
When individual output channel is opened, the output beam of K*F output channel output can transmit to corresponding K*F
Root optical fiber so that controller 50 controls every light in described K*F root optical fiber by corresponding optical attenuator
Fine output energy, and the light beam of output is projected to human eye, wherein, in described K*F output channel
The output energy of each output channel is identical with energy needed for the gray scale of corresponding pixel or difference is the least, and
The output energy being controlled unselected output channel by optical attenuator is 0, so, it is possible to be effectively improved
The effect that image shows.
In the embodiment of the present application, in fiber array 30, the outgoing end face of every optical fiber can be plane, it is possible to
To be curved surface, optical fiber can be lens fibers optical fiber such as silicon dioxide optical fibers, and this kind of optical fiber is permissible
Obtain emergent light spot to girdle the waist minimum and large-numerical aperture light beam；Exit end mask at optical fiber has certain radian
Concave curved surface time, concave curved surface can convergent beam so that is projected to the hot spot that the light beam of human eye produces and reduces, enters
And the effect that image shows can be improved；When the exit end mask of optical fiber has the convex surface of certain radian, convex
Curved surface meeting divergent beams so that the hot spot of the light beam generation being projected to human eye increases, and then to a certain extent
Affect the effect that image shows；Preferably, in the embodiment of the present application, the outgoing end face of every optical fiber is concave curved
Face.
Certainly, for improving capacity usage ratio, the veiling glare that non-imaged light beam causes is reduced, in the embodiment of the present application
The end face of every optical fiber is set to curved surface, and the numerical aperture of the curved surface outgoing beam of every optical fiber and amplification
The numerical aperture coupling of mirror group 40.
In the embodiment of the present application, the outgoing end face of fiber array 30 is arranged into cambered surface, each optical fiber correspondence
That is one pixel of one visual field light field, therefore display resolution by each optical fiber size (bore) and
Quantity determines, the biggest quantity of its bore is the biggest, and display resolution is the highest, otherwise, then display resolution is the lowest；
Optical fiber in fiber array 30 can be single-mode fiber and multimode fibre, and the central area of fiber array 30 is used
Single-mode fiber obtains higher display resolution, and marginal area uses multimode fibre display low resolution.
In the embodiment of the present application, the outgoing end face of fiber array 30 and the optimal imaging curved surface of magnifier group 40
Overlap, concrete, the optimal imaging curved surface of magnifier group 40 according to magnifier image-forming principle, can be obtained,
Wherein, described optimal imaging curved surface；Further according to the outgoing of every optical fiber in the fiber array 30 pre-set
Face size, by described optimal imaging Surface tessellation, obtains every optical fiber on described optimal imaging curved surface
Position, arrange every optical fiber according to described position, and then by the outgoing end face of fiber array 30 and amplification
The optimal imaging curved surface of mirror group 40 overlaps.
Specifically, according to magnifier image-forming principle, the optimal imaging of magnifier group 40 can be calculated
Curved surface, when the outgoing end face of fiber array 30 overlaps with described optimal imaging curved surface so that fiber array
Imaging after light beam amplified mirror group 40 refraction of the outgoing end face outgoing of 30, the definition of imaging is far longer than
The outgoing end face of fiber array 30 is set to the definition of plane.Further, due to described optimal imaging
What curved surface was formed is to amplify the upright virtual image so that described optimal imaging curved surface is positioned at Jiao of magnifier group 40
Away from interior.
In the embodiment of the present application, due to fiber exit is Gaussian beam, and its place with a tight waist is light source eye point,
After optical fiber parameter determines, the beam waist position of optical fiber determines that with the relative position of fiber exit end face, and optical fiber is arranged
The position that the beam waist position of every optical fiber is positioned on described optimal imaging curved surface, so, energy is guaranteed during cloth
Enough definitions improving imaging further.
Concrete, as shown in Figure 6, the outgoing end face of fiber array 31 is curved surface, and with magnifier group 41
Optimal imaging curved surface overlap, the light beam that every optical fiber in fiber array 31 sends is cone-shaped beam, and
The numerical aperture of every optical fiber matches with the numerical aperture of magnifier group 41 so that every optical fiber sends
Light beam all can be exaggerated received by mirror group 41 and refract to human eye 60.
Continuing as shown in Figure 6, the outgoing end face of every optical fiber in fiber array 31 is set to concave curved surface,
Concave curved surface meeting convergent beam so that be projected to the hot spot reduction that the light beam of human eye produces, and then figure can be improved
Effect shown in as.
In like manner, the outgoing end face of fiber array 32 is also curved surface, and bent with the optimal imaging of magnifier group 42
Face overlaps, and concrete structure as shown in Figure 6, just repeats no more at this.
Owing to fiber array 30 is packaged in described transparency carrier so that external environmental light can be by described
Transparency carrier and magnifier group 40 refract to human eye, thus observe reality external environment.
In actual application, the near-eye display system that the embodiment of the present application provides is showing as augmented reality
When showing, arranging light modulation structure at fiber array 30 away from human eye side, described light modulation structure is specially poly-
(Polymer Dispersed Liquid Crystal, is called for short compound dispersed LCD: PDLC) film layer and be used for controlling
Make the photoswitch of described pdlc film layer power on/off；Use and show virtual image and reality external environment at times；
If the refresh rate of human eye is 30Hz, being divided into 2 sections the time period corresponding for this refresh rate, a period of time is used for showing
Show virtual image, make the photoswitch of pdlc film layer disconnect in this period so that pdlc film layer is opaque
State；Another a period of time is used for observing reality external environment, makes the photoswitch of pdlc film layer in this period
Open-minded, thus pdlc film layer is applied voltage so that it is transparent state so that external environmental light can be led to
Cross pdlc film layer and described transparency carrier；So so that external environmental light can pass through pdlc film layer and institute
State transparency carrier and be refracted into human eye by magnifier group 40 again, it is achieved observe reality external environment.
It is, of course, also possible to the time period corresponding for described refresh rate is divided at least 3 sections, one section or many therein
The section time is used for showing that virtual image, remaining at least a period of time are used for observing reality external environment.
Beneficial effects of the present invention is as follows:
Based on technique scheme, in the embodiment of the present invention, the outgoing end face of fiber array is curved surface, meets institute
State the imaging surface face type of magnifier group, when using inverse light path principle to amplify, the outgoing end face of described fiber array
Imaging after the image amplified mirror group refraction sent so that marginal area imaging remains to be apparent from, Jin Erneng
Enough improve the definition of imaging, and the outgoing end face of described fiber array be arranged in the focal length of magnifier group,
It is imaged as amplifying the upright virtual image after making refraction, it is possible to make to show that visual field increases, it follows that this Shen
Please embodiment show in the case of visual field guaranteeing, it is possible to be effectively improved the definition of marginal area imaging, make
The definition obtaining magnifier composition picture improves the most therewith.
Embodiment two:
Embodiment of the present invention second aspect provides a kind of virtual reality device, introduces including such as first aspect
Near-eye display system.
Concrete structure and the running of near-eye display system has been described in detail, at this in first aspect
Just repeat no more.
Concrete, described virtual reality device can also include that shell, described near-eye display system are arranged on institute
State in shell.
Embodiment three:
The embodiment of the present invention third aspect provides a kind of augmented reality equipment, introduces including such as first aspect
Near-eye display system, external environmental light enters human eye by the magnifier group in described near-eye display system.
Describe concrete structure and the running of near-eye display system in detail,
This just repeats no more.
Concrete, described augmented reality equipment can also include shell, described first near-eye display system and institute
State the second near-eye display system to be respectively provided with in the housing.
Concrete, in described augmented reality equipment, fiber array 30 is encapsulated in transparency carrier so that extraneous
Ambient light can refract to human eye by described transparency carrier and magnifier group 40, thus observes outside reality
Boundary's environment.
In actual application, described augmented reality equipment be additionally included in fiber array 30 away from human eye
Side arranges light modulation structure, and described light modulation structure is specially pdlc film layer and for controlling described pdlc film
The photoswitch of layer power on/off；Use and show virtual image and reality external environment at times；If the refreshing of human eye
Rate is 30Hz, and the time period corresponding for this refresh rate is divided into 2 sections, and a period of time is used for showing virtual image,
The photoswitch making pdlc film layer in this period disconnects so that pdlc film layer is opaque state；Another section
Time is used for observing reality external environment, and the photoswitch making pdlc film layer in this period is open-minded, thus right
Pdlc film layer applies voltage so that it is transparent state so that external environmental light can by pdlc film layer and
Described transparency carrier；So so that external environmental light can by pdlc film layer and described transparency carrier again
It is refracted into human eye, it is achieved observe reality external environment by magnifier group 40.
It is, of course, also possible to the time period corresponding for described refresh rate is divided at least 3 sections, one section or many therein
The section time is used for showing that virtual image, remaining at least a period of time are used for observing reality external environment.
Beneficial effects of the present invention is as follows:
Based on technique scheme, in the embodiment of the present invention, the outgoing end face of fiber array is curved surface, meets institute
State the imaging surface face type of magnifier group, when using inverse light path principle to amplify, the outgoing end face of described fiber array
Imaging after the image amplified mirror group refraction sent so that marginal area imaging remains to be apparent from, Jin Erneng
Enough improve the definition of imaging, and the outgoing end face of described fiber array be arranged in the focal length of magnifier group,
It is imaged as amplifying the upright virtual image after making refraction, it is possible to make to show that visual field increases, it follows that this Shen
Please embodiment show in the case of visual field guaranteeing, it is possible to be effectively improved the definition of marginal area imaging, make
The definition obtaining magnifier composition picture improves the most therewith.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a near-eye display system, it is characterised in that include LASER Light Source, spectrum groupware, optical fiber array
Row, magnifier group and controller, described spectrum groupware includes M*N output channel, described fiber array
Outgoing end face be curved surface, and the outgoing end face of described fiber array is arranged on the focal length of described magnifier group
In, M and N is the integer not less than 2；
The laser that described LASER Light Source is modulated according to image information for output；Swashing of described LASER Light Source output
Light, after described spectrum groupware, is divided into M*N light beam；Described controller is electrically connected with described light splitting
Assembly, for the display visual field gray scale according to described image information, controls each output in described spectrum groupware
The opening and closing of passage；Optical fiber in described fiber array couples with described M*N output channel, uses
In the output beam that transmission exports from described spectrum groupware；Described magnifier group is arranged on described fiber array
On emitting light path, for the described output beam of described fiber array outgoing is refracted to human eye.
2. the system as claimed in claim 1, it is characterised in that described LASER Light Source includes trichroism laser
Light source, collimating mirror group, bundling device, bonder and coupling optical fiber, wherein, described trichroism LASER Light Source exports
Trichroism laser；Described collimation lens set is arranged on the emitting light path of described trichroism LASER Light Source, for institute
State trichroism laser and carry out collimation process；Described bundling device is arranged on the emitting light path of described collimation lens set,
Process for the laser of described collimation lens set outgoing being carried out conjunction bundle；Described bonder is arranged at described conjunction and restraints
On the emitting light path of device, for by the laser coupled of described bundling device outgoing to described coupling optical fiber；Described
Coupling optical fiber is connected with described bonder, and described coupling optical fiber is for being transferred through the laser of described bonder.
3. the system as claimed in claim 1, it is characterised in that described fiber array is by M row N row light
Fine closely arrangement forms.
4. the system as claimed in claim 1, it is characterised in that described spectrum groupware includes 1 1*M
First optical branching device of type and the second optical branching device of M 1*N type, the incidence of described first optical branching device
End is connected with the exit end of described LASER Light Source, described M the second optical branching device and described first smooth branch
M exit end of device is connected one by one.
5. the system as claimed in claim 1, it is characterised in that described spectrum groupware includes 1 1*M
First optical branching device of type, the second optical branching device of M 1*N type and M*N channel switching, described
The incidence end of one optical branching device is connected with the exit end of described LASER Light Source, described M the second optical branching device
It is connected one by one with M exit end of described first optical branching device；Described M*N channel switching is used for controlling
The opening and closing of described M*N output channel, described M*N channel switching and described M*N defeated
Go out passage one_to_one corresponding.
6. the system as claimed in claim 1, it is characterised in that described spectrum groupware includes 1 M*N
The optical branching device of type, the optical branching device of described M*N type is integrated with M*N channel switching, described M*N
Individual channel switching is for controlling the opening and closing of described M*N output channel, and described M*N passage is opened
Close and described M*N output channel one_to_one corresponding.
7. the system as claimed in claim 1, it is characterised in that the outgoing end face of described fiber array with
The optimal imaging curved surface of described magnifier group overlaps.
8. system as claimed in claim 7, it is characterised in that the outgoing end face of described fiber array with
The optimal imaging curved surface of described magnifier group overlaps, particularly as follows:
According to magnifier image-forming principle, obtain the optimal imaging curved surface of described magnifier group；Further according to setting in advance
The outgoing face size of every optical fiber in the described fiber array put, by described optimal imaging Surface tessellation,
Obtain every optical fiber position on described optimal imaging curved surface, arrange every optical fiber according to described position.
9. system as claimed in claim 7, it is characterised in that every optical fiber in described fiber array
Beam waist position all overlap with a position of described optimal imaging curved surface.
10. the system as described in any one of claim 1-9, it is characterised in that in described fiber array
The end face of every optical fiber is arranged to curved surface, the numerical aperture of the curved surface outgoing beam of every optical fiber and described amplification
The numerical aperture of mirror group matches.
11. 1 kinds of virtual reality device, it is characterised in that include such as claim arbitrary in claim 1-10
Described near-eye display system.
12. 1 kinds of augmented reality equipment, it is characterised in that include such as claim arbitrary in claim 1-10
Described near-eye display system, external environmental light enters people by the magnifier group in described near-eye display system
Eye.
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