CN107562181A

CN107562181A - Near-eye display system, virtual reality device and augmented reality equipment

Info

Publication number: CN107562181A
Application number: CN201610517259.2A
Authority: CN
Inventors: 黄琴华
Original assignee: Chengdu Idealsee Technology Co Ltd
Current assignee: Chengdu Idealsee Technology Co Ltd
Priority date: 2016-07-01
Filing date: 2016-07-01
Publication date: 2018-01-09
Anticipated expiration: 2036-07-01
Also published as: CN107562181B; WO2018001324A1

Abstract

The invention discloses a kind of near-eye display system, virtual reality device and augmented reality equipment, including LASER Light Source, spectrum groupware, scanning fiber array and controller, the spectrum groupware includes M*N output channel, the corresponding relation of the scanning optical fiber and S noninterference region in the scanning fiber array is prestored in the controller, and the corresponding relation includes region field-of-view information corresponding to each noninterference region, the laser of the LASER Light Source output is divided into M*N light beam after the spectrum groupware；The controller controls the opening and closing of each output channel in the spectrum groupware according to the display visual field gray scale of the image information；The controller controls the scanning optical fiber in the scanning fiber array according to the corresponding relation, it is emitted described output beam and forms S visual field light, and by the S visual field light projection to human eye.

Description

Near-eye display system, virtual reality device and augmented reality equipment

Technical field

The present invention relates to vision technique field, more particularly to a kind of near-eye display system, virtual reality device and enhancing are existing Real equipment.

Background technology

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, which is typically based on, images the actual physical situation image that first-class image capture device obtains, and passes through calculating Machine system identification analysis and query and search, the content of text, picture material or the iconic model that association therewith be present etc. is virtual raw Into virtual image be shown in actual physical situation image so that user can be obtained in the real physical environment being in The related expanding information such as the mark of real-world object, explanation, or experience the three-dimensional, prominent of real-world object in real physical environment Go out the enhancing visual effect emphasized.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, and the simulated environment can pass through the feedback 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 are each when showing virtual image by scanning fiber array Moment shows a pixel, such as exemplified by showing the monochrome image of a width 800*600, the refresh rate of human eye takes minimum requirements 30Hz, in order that obtaining human eye it can be seen that the virtual image of display, then scanning optical fiber opens on and off in control scanning fiber array The switching frequency of the photoswitch opened is minimum=14.3MHz, the scan frequency that scans optical fiber is minimum=and 12KHz；If need to show RGB color image, due to display coloured image need to use sequential method, therefore need photoswitch switching frequency it is minimum= 43MHz, the scan frequency that scans optical fiber is minimum=36kHz, no matter display monochrome image or coloured image, required light The switching frequency of switch is too high, and switching frequency is higher so that the energy wasted is more, it follows that light in the prior art be present The switching frequency of switch is too high, the problem of causing capacity usage ratio low.

The content of the invention

The present invention provides a kind of near-eye display system, virtual reality device and augmented reality equipment, can effectively reduce light The switching frequency of switch, and capacity usage ratio can be effectively improved.

The embodiment of the present application first aspect provides a kind of near-eye display system, including LASER Light Source, spectrum groupware, scanning Fiber array and controller, the spectrum groupware include M*N output channel, the scanning optical fiber are prestored in the controller The corresponding relation of scanning optical fiber and S noninterference region in array, and the corresponding relation includes each noninterference region pair The region field-of-view information answered, S, M and N are the integer not less than 2；

The LASER Light Source is used to export laser；The laser of the LASER Light Source output is after the spectrum groupware, quilt It is divided into M*N light beam；The controller is electrically connected with the spectrum groupware, for the display according to the image information prestored Visual field gray scale, control the opening and closing of each output channel in the spectrum groupware；Sweeping in the scanning fiber array Retouch optical fiber to couple with the M*N output channel, for transmitting the output beam from spectrum groupware output；The controller According to the corresponding relation, the scanning optical fiber in the scanning fiber array is controlled, it is emitted the output beam and forms S Visual field light, and by the S visual field light projection to human eye.

Optionally, the LASER Light Source includes 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 arranged at the emergent light of the three colors LASER Light Source Lu Shang, for carrying out collimation processing to the three colors laser；The bundling device is arranged on the emitting light path of the collimation microscope group, For the laser of the collimation microscope group outgoing to be carried out closing beam processing；The coupler is arranged at the emitting light path of the bundling device On, for the laser coupled that the bundling device is emitted to be coupled in optical fiber to described；The coupling optical fiber and the coupler phase Even, the coupling optical fiber is used for the laser for being transferred through the coupler.

Optionally, the scanning fiber array includes horizontal direction scanning fibre bundle and vertical scan direction fibre bundle, institute Horizontal direction scanning fibre bundle is stated to be used to expand horizontal exit light beam；The vertical scan direction fibre bundle is used for hanging down Straight outgoing beam is expanded.

Optionally, the horizontal direction scanning fibre bundle is the scanning fibre bundle closely arranged or be intervally arranged, described to hang down Straight scanning direction fibre bundle is the scanning fibre bundle closely arranged or be intervally arranged, wherein, the close arrangement is per adjacent two Interval between beam optical fiber is not more than pre-determined distance.

Optionally, include scanner per beam scanning optical fiber, the scanner be arranged on it is described scan on optical fiber, for by institute State scanning optical fiber and enter horizontal deflection so that the light beam of the scanning fiber exit also deflects therewith.

Optionally, the spectrum groupware includes the second optical branching device of the first optical branching device of 1 1*M type, M 1*N type With M*N channel switch, the incidence end of first optical branching device is connected with the exit end of the LASER Light Source, the M the Two optical branching devices are connected one by one with M exit end of first optical branching device；The M*N channel switch is described for controlling The unlatching and disconnection of M*N output channel, the M*N channel switch and the M*N output channel correspond.

Optionally, the spectrum groupware includes the optical branching device of 1 M*N type, and the optical branching device of the M*N types is integrated with M* N number of channel switch, the M*N channel switch are used for the unlatching and disconnection for controlling the M*N output channel, and the M*N is individual Channel switch and the M*N output channel correspond.

Optionally, the scanning optical fiber in the scanning fiber array corresponds to S noninterference region, is specially：

The controller is used for according to preparatory condition, and it is individual non-that the scanning optical fiber in the scanning fiber array is divided into S Interference region.

Optionally, the controller is used for the size according to exit pupil diameter, by the scanning light in the scanning fiber array Fibre is divided into the S noninterference region.

Optionally, the near-eye display system also includes convergent lenses array group, and the convergent lenses array group includes the One group of convergent lenses array and second group of convergent lenses array, first group of convergent lenses array are arranged at the scanning optical fiber The close human eye side of array, second group of convergent lenses array are arranged at the remote human eye one of the scanning fiber array Side.

Optionally, first group of convergent lenses array and second group of convergent lenses array are collimation convergent lens Array, and first group of convergent lenses array and second convergent lenses array composition 1:1 telescopic system.

Optionally, first group of convergent lenses array and second group of convergent lenses array are that automatically controlled liquid is micro- Lens array, and first group of convergent lenses array and second convergent lenses array composition 1:1 afocal system.

Optionally, the near-eye display system also includes convergent lenses array, and the convergent lenses array is arranged at described Scan the close human eye side of fiber array.

Optionally, the near-eye display system also includes light modulation structure, and the light modulation structure is arranged at the scanning optical fiber The remote human eye side of array.

The embodiment of the present application second aspect provides a kind of virtual reality device, including the nearly eye of two sets of such as first aspects shows Show system, wherein the first near-eye display system is corresponding with the left eye of people, the second near-eye display system is corresponding with the right eye of people.

The embodiment of the present application third aspect provides a kind of augmented reality equipment, including the nearly eye of two sets of such as first aspects shows Show system, wherein the first near-eye display system is corresponding with the left eye of people, the second near-eye display system is corresponding with the right eye of people；It is extraneous Ambient light enters the left eye of people by the convergent lenses array group of first near-eye display system, and passes through the described second nearly eye The convergent lenses array group of display system enters the right eye of people.

Beneficial effects of the present invention are as follows：

Based on above-mentioned technical proposal, the scanning scanned in fiber array is prestored in the embodiment of the present invention in controller The corresponding relation of optical fiber and S noninterference region, and the corresponding relation includes region visual field corresponding to each noninterference region Information, by scan in fiber array scanning optical fiber it is defeated from spectrum groupware export output beam when, the controller root According to the corresponding relation, the scanning optical fiber in the scanning fiber array is controlled, it is emitted output beam formation S and regards Light, and by the S visual field light projection to human eye, so so that near-eye display system described in each moment can show that S is individual Visual field light is S pixel, and in the prior art each moment be only capable of displaying a pixel, and S is the integer not less than 2, The switching frequency of effectively reduction channel switch is so, it is possible, and within the unit interval in the case of switching frequency reduction, its energy Amount utilization rate can also improve therewith.

Brief description of the drawings

Fig. 1 is the structural representation of near-eye display system in the embodiment of the present invention；

Fig. 2 is the structural representation of LASER Light Source in the embodiment of the present invention；

Fig. 3 is the structural representation of the second optical branching device 2021 in the embodiment of the present invention；

Fig. 4 is the first structural representation that optical fiber is scanned in the embodiment of the present invention；

Fig. 5 is second of structural representation that optical fiber is scanned in the embodiment of the present invention；

Fig. 6 is that fiber array and the structural representation of collimator lens array group are scanned in the embodiment of the present invention；

Fig. 7 is 1 in the embodiment of the present invention:The light path principle figure of 1 telescopic system；

Fig. 8 is the arrangement figure of M row N column scan optical fiber in the embodiment of the present invention；

Fig. 9 is the distribution map that scanning fiber array is divided into S noninterference region in the embodiment of the present invention；

Figure 10 is that fiber array and the structural representation of automatically controlled liquid lens array group are scanned in the embodiment of the present invention；

Figure 11 is the structural representation that fiber array, automatically controlled liquid lens array and light modulation structure are scanned in the embodiment of the present invention Figure；

Figure 12 is the structural representation of the relative position of user's pupil and transparency carrier in the embodiment of the present invention.

Relevant mark is as follows in accompanying drawing：

10 --- LASER Light Source, 101 --- red laser light source, 102 --- green laser light source, 103 --- blueness swashs Radiant, 104 --- collimation microscope group, 1041 --- collimation microscope group, 1042 --- collimation microscope group, 1043 --- collimation microscope group, 105 --- bundling device, 1051 --- dichroscope, 1052 --- dichroscope, 1053 --- dichroscope, 106 --- coupling Device, 107 --- coupling optical fiber, 20 --- spectrum groupware, 201 --- the first optical branching device of 1*M types, 202 --- M 1*N type The second optical branching device, 2021 --- the second optical branching device, 203 --- 1*N channel switch, 204 --- N root decoupling optical fiber, 30 --- scanning fiber array, 301 --- scanning optical fiber, 302 --- PZT piezoelectric ceramics, 303 --- sleeve pipe, 304 --- it is fixed Seat, 305 --- transparency carrier, 40 --- controller, 50 --- the first collimator lens array, 51 --- the second collimation lens battle array Row, 52 --- the first electrically-controlled liquid crystal microlens array, 53 --- the second electrically-controlled liquid crystal microlens array, 54 --- light modulation structure.

Embodiment

The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

Embodiment one：

As shown in figure 1, first aspect of the embodiment of the present invention provides a kind of near-eye display system, including LASER Light Source 10, Spectrum groupware 20, scanning fiber array 30 and controller 40, spectrum groupware 20 include M*N output channel, in controller 40 in advance There is the corresponding relation of the scanning optical fiber and S noninterference region in scanning fiber array 30, and the corresponding relation is included often Region field-of-view information corresponding to individual noninterference region, S, M and N are the integer not less than 2.

Wherein, LASER Light Source 10 is used to export laser；The laser that LASER Light Source 10 exports is divided after spectrum groupware 20 Into M*N light beam；Spectrum groupware 20 is electrically connected in controller 40, for being regarded according to the display of the image information prestored Field gray scale, controls the opening and closing of each output channel in spectrum groupware 20；Scan the scanning optical fiber in fiber array 30 Coupled with the M*N output channel, for transmitting the output beam exported from spectrum groupware 20；Controller 40 is according to described right It should be related to, the scanning optical fiber in control scanning fiber array 30, it is emitted the output beam and form S visual field light, and will The S visual field light projection is to human eye.

Specifically, the image information is currently playing image information, can be from the memory being connected with controller 40 Or read or directly read from internal memory in server, the memory space of itself of controller 40 is can also be certainly Middle reading, the application are not specifically limited.

Further, LASER Light Source 10 can be monochromatic laser light source or Multi Colour Lasers light source, for one-wavelength laser Guan Guang During source, for showing monochrome image；For Multi Colour Lasers light source when, for showing monochrome image and multicolor image；Further, LASER Light Source 10 is specifically as follows three color LASER Light Sources, for example, RGB LASER Light Sources etc., lower mask body using three color LASER Light Sources as Example.

In the embodiment of the present application, the display visual field gray scale of the image information is pixel ash corresponding to current display visual field Degree, the gray scale of each pixel it can obtain in the image according to corresponding to the image information can get the image information The display visual field gray scale is taken, such as current display visual field is 0 ° of visual field, then obtains pixel gray level corresponding to 0 ° of visual field for example For a value in 0~255；Certainly current display visual field is multiple visual fields, then obtains each visual field pair in current display visual field The pixel gray level answered.

Specifically, controller 40 is according to the display visual field gray scale of the image information, in image corresponding to acquisition with it is every Pixel gray level corresponding to individual display visual field；Further according to the corresponding relation, control scans the scanning optical fiber in fiber array 30 It is S pixel that each moment, which is emitted the output beam and forms S visual field light, is led to each pixel by way of sequential Optical fiber output is over-scanned, image corresponding to the image information is output to by human eye by such a mode, wherein, the image letter The all pixels point of breath is less than human eye refresh time by scanning the time of optical fiber output, if the refresh rate of human eye is 30Hz, Human eye refresh time is 1/30Hz, and the time of all pixels point output of the image information is less than 1/30Hz.

Specifically, referring to Fig. 2, LASER Light Source 10 swashs including red laser light source 101, green laser light source 102 and blueness Radiant 103, wherein, red laser light source 101 is used for transmitting red laser beam, and green laser light source is used for transmitting green laser, Blue laser light source 103 is used to launch blue laser.

With continued reference to Fig. 2, LASER Light Source 10 also includes collimation microscope group 104, bundling device 105, coupler 106 and coupling optical fiber 107, collimation microscope group 104 is arranged on the emitting light path of LASER Light Source 10, and the laser for launching LASER Light Source 10 carries out accurate Straight processing, wherein, collimation microscope group 104 includes collimating mirror 1041, collimating mirror 1042 and collimating mirror 1043, and collimating mirror 1041 is arranged at On the emitting light path of red laser light source 101, for carrying out collimation processing to red laser；Collimating mirror 1042 is arranged at green and swashed On the emitting light path of radiant 102, for carrying out collimation processing to green laser；Collimating mirror 1043 is arranged at 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. 2, bundling device 105 is arranged 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 glow, and dichroscope 1052 transmits green glow, and dichroscope 1053 is saturating Red-green glow and reflection blue light are penetrated, so as to which the Laser synthesizing for sending collimation microscope group 104 is a light path, is just repeated no more herein .

With continued reference to Fig. 2, coupler 106 is arranged 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 is connected with coupler 106, and coupling optical fiber 107 is used to be transferred through The laser of coupler 106.

Specifically, spectrum groupware 20 can be the optical branching device of 1 M*N type, the optical branching device of the M*N types is integrated with M* N number of channel switch, the M*N channel switch are used to controlling opening and disconnecting for the M*N output channel, and the M*N is individual Channel switch and the M*N output channel correspond；Certainly, spectrum groupware 20 can also be the optical branching device of 1 M*N type With M*N channel switch, wherein, the channel switch can be photoswitch or optical attenuator etc., be light in the channel switch During switch, opening and disconnecting for output channel can be controlled；When the channel switch is optical attenuator, pass through the optical attenuation Device can not only control opening and disconnecting for output channel, additionally it is possible to the energy of output channel output beam is controlled, wherein, defeated When going out passage and opening, light beam is transmitted to scanning fiber array 30 by output channel；When output channel disconnects, light beam can not lead to Cross output channel to transmit to scanning fiber array 30, lower mask body is by taking photoswitch as an example.

Wherein, when the channel switch is optical attenuator, by optical attenuator control corresponding to output channel output Energy is 0, you can to determine that the output channel has disconnected；If by optical attenuator control corresponding to output channel output energy More than 0, you can to determine that the output channel is open-minded.

Specifically, referring to Fig. 1, spectrum groupware 20 can also be the first optical branching device 201 of 1 1*M type, M 1*N type The second optical branching device 202 and the M*N channel switch, the first incidence end of optical branching device 201 and going out for LASER Light Source 10 Penetrate end to be connected, i.e., the incidence end of the first optical branching device 201 is connected with coupling optical fiber 107, M the second optical branching devices 202 and first M exit end of optical branching device 201 is connected one by one；The M*N channel switch is used to control opening for the M*N output channel On and off is opened, and the M*N channel switch and the M*N output channel correspond, and then make it that each output channel can With by corresponding channel switch opening and disconnect come the independent control output channel, wherein, each output channel is one Root optical fiber so that the M*N output channel is M*N root optical fiber.

Wherein, spectrum groupware 20 is when the laser for exporting LASER Light Source 10 is divided into M*N light beam, for 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 set is ER, the ceiling capacity of the exit end outgoing of each output channel of final fiber optic splitter is ER/ after the beam splitting of spectrum groupware 20 (M*N)；The tonal gradation of image is constrained by scanning optical fiber, and M*N beam scannings optical fiber can realize M*N tonal gradation；If institute The tonal gradation for stating image corresponding to image information is 8, that is, has 256 tonal gradations, red laser corresponding to unit gray scale Energy demand is ER/256.

With continued reference to Fig. 3, by taking second optical branching device 2021 in M the second optical branching devices 202 as an example, the second light point The incidence end of road device 2021 is connected with an exit end of the first optical branching device 201, N number of exit end of the second optical branching device 2021 It is connected one by one with 1*N channel switch 203, the output end of 1*N channel switch 203 can also connect N root decouplings optical fiber 204, For being connected with the scanning optical fiber in scanning fiber array 30, wherein, 1*N channel switch 203 is used to control the second optical branching N number of exit end of device 2021 is opened and disconnected, and then control N number of output channel of the second optical branching device 2021 opens on and off Open.

Specifically, scanning fiber array 30 includes M*N beam scanning optical fiber, the light beam coupling of the M*N output channel output Close into the M*N beam scannings optical fiber, then entered the light beam that the M*N output channel exports by the M*N beam scannings optical fiber Horizontal deflection, the light beam after deflection is projected to human eye.

Specifically, referring to Fig. 1, scanning fiber array 30 can form a scanning fibre faceplate, further, scan light Fibre array 30 can include horizontal direction scanning fibre bundle and vertical scan direction fibre bundle, and the horizontal direction scans fibre bundle For being expanded to horizontal exit light beam；The vertical scan direction fibre bundle is used to expand vertical exit light beam, In this way, by expanding both horizontally and vertically, to improve the display visual field of the near-eye display system, such as can show 120 °, 130 ° and 140 ° of visual field so that display visual field more matches with the visual field of human eye.

Wherein, the horizontal direction scanning fibre bundle is the scanning fibre bundle closely arranged or be intervally arranged, described vertical Scanning direction fibre bundle is the scanning fibre bundle closely arranged or be intervally arranged, wherein, the close arrangement is per adjacent two beam Interval between optical fiber is not more than pre-determined distance, it is described be intervally arranged for the interval between per adjacent two-beam fibre be more than it is default away from From, wherein, the pre-determined distance is set according to actual conditions, and the pre-determined distance can be not less than 25 microns (um) Value, for example, 25um, 30um and 35um etc., the application is not specifically limited.

Specifically, include scanner per beam scanning optical fiber, the scanner be arranged on it is described scan on optical fiber, for by institute State scanning optical fiber and enter horizontal deflection so that the light beam of the scanning fiber exit also deflects therewith, it is achieved thereby that horizontal and vertical Expanding on direction, wherein, the scanner is specifically as follows two-dimensional scanner such as PZT piezoelectric ceramics etc., and scanning optical fiber is in PZT Both horizontally and vertically enter horizontal deflection (two-dimensional scan) under Piezoelectric Ceramic, at the laser that LASER Light Source 10 is exported Manage as image beam, so as to realize the purpose being sent to virtual image in eyes of user.

Specifically, referring to Fig. 4, the beam scanning optical fiber 301 scanned in fiber array 30 includes PZT piezoelectric ceramics 302, Scanning optical fiber 301 is arranged in sleeve pipe 303, and PTZ piezoelectric ceramics 302 is fixed in sleeve pipe 303 by fixed seat 304, and PZT is pressed Electroceramics 302 is arranged on scanning optical fiber 301, and the inwall of the both ends of fixed seat 304 with sleeve pipe 303 is connected, to fix Seat 304 is fixed in sleeve pipe 303；Certainly, fixed seat 304 only can also be connected one end with the inwall of sleeve pipe 303, again such that solid Reservation 304 is fixed in sleeve pipe 303, referring specifically to Fig. 5.

In the embodiment of the present application, the outgoing end face for scanning the scanning optical fiber in fiber array 30 can be plane, can also It is curved surface, scanning optical fiber can be lens fibers optical fiber such as silica optical fiber, and this kind of optical fiber can be emitted Hot spot is girdled the waist minimum and large-numerical aperture light beam；It is recessed when there is the concave curved surface of certain radian in the exit end face for scanning optical fiber Curved surface meeting convergent beam so that the maximum scan angle of each beam reduces, and then improves optical fiber in scanning fiber array 30 and sweep The frequency retouched；When there is the convex surface of certain radian in the exit end face for scanning optical fiber, convex surface meeting divergent beams so that each The maximum scan angle increase of root beam, and then reduce the frequency of optical fiber scanning in scanning fiber array 30.

In the embodiment of the present application, referring to Fig. 6, scanning fiber array 30 can be encapsulated in transparency carrier 305, scan optical fiber 301 be that bare fibre outer layer one layer of very thin transparent protective film of coating is coat, the space per adjacent two between scanning optical fiber Filled with identical with the coat refractive index or approximate material, wherein, transparency carrier 305 is that transparency is transparent more than default The substrate of degree, the span of the default transparency is 75%-100%, you can is thought any one between 75%-100% Individual value, for example, 75%, 85% and 100% etc..

In another embodiment of the application, the near-eye display system also includes convergent lenses array group, the convergent lens Array group includes the first convergent lenses array and the second convergent lenses array, and first convergent lenses array is arranged at scanning light The close human eye side of fibre array 30, second convergent lenses array are arranged at the remote human eye one of scanning fiber array 30 Side.

Specifically, first convergent lenses array and second convergent lenses array can be collimation lens battle array Row, as shown in fig. 6, the first collimator lens array 50 is set in the close human eye side of scanning fiber array 30, in scanning optical fiber The remote human eye side of array 30 sets the second collimator lens array 51, and the first collimator lens array 50 and the second collimation lens The composition of array 51 1:1 telescopic system, because scanning fiber array 30 is packaged in transparency carrier 305 so that external environment Light passes through 1:1 telescopic system enters human eye, and because external environment just passes through 1:1 telescopic system enters human eye, no The external world can be zoomed in or out so that user can more really experience external environment, wherein, 1:1 telescopic system Light path principle is specifically as shown in Figure 7.

Specifically, the first collimator lens array 50 is arranged on the emitting light path of scanning fiber array 30, for scanning The light beam that fiber array 30 is emitted carries out collimation processing, and lower mask body is with a collimation lens in the first collimator lens array 50 Exemplified by.

Referring to Fig. 4 and Fig. 5, in the embodiment of the present application, scan and be additionally provided with collimation lens on the emitting light path of optical fiber 301 501, the cone-shaped beam that collimation lens 501 is used to scan PZT piezoelectric ceramics 302 outgoing carries out collimation processing so that it can Projected in a manner of approximately parallel in human eye.

In the embodiment of the present application, controller 40 can be single-chip microcomputer, process chip and control circuit etc.；Further, institute State near-eye display system be applied to it is simple eye, eyes need to use two sets of near-eye display systems.

In the embodiment of the present application, controller 40 controls spectrum groupware 20 according to the display visual field gray scale of the image information In each output channel open and disconnect, be specially：Controller 40 according to the display visual field gray scale of the image information, from Choose K*F output channel and its is open-minded in the M*N output channel, and by unselected output channel disconnection；By Coupled in scanning the scanning optical fiber of the M*N roots in fiber array 30 with the M*N output channel, it is open-minded in K*F output channel When, the output beam of K*F output channel output, which can be transmitted to corresponding K*F roots, scans optical fiber, and controller 40 is according to institute Corresponding relation is stated, controls K*F roots scanning optical fiber, it is emitted described output beam and forms S visual field light, and by the S Individual visual field light projection to human eye, wherein, K and F are positive integer.

In the embodiment of the present application, controller 40 can be according to the display visual field gray scale of the image information, using arest neighbors Point interpolation method chooses the K*F output channel and its is open-minded from the M*N output channel, and will be unselected defeated Go out passage disconnection；Because the M*N roots scanning optical fiber in scanning fiber array 30 couples with the M*N output channel, at K*F When output channel is opened, the output beam of K*F output channel output, which can be transmitted to corresponding K*F roots, scans optical fiber, so The output beam is scanned and is projected to human eye by K*F roots scanning optical fiber afterwards, wherein, K and F are positive integer.

For example, with reference to Fig. 8, passage corresponding to each visual field is M*N output channel, accordingly, due to spectrum groupware 20 have M*N output channel so that scanning fiber array 30 will necessarily have M row N corresponding with M*N output channel row Scan optical fiber, i.e. M*N roots scanning optical fiber；If M=N=30, there is 30*30 output channel；The near-eye display system is first Under beginning state, it is defaulted as user's pupil 60 and is centrally located on the central axis 306 of transparency carrier 305, if the image information pair The image answered is 8bit, there is 256 grey levels, and the gray value of zero visual field currently shown is 160, corresponding to need what is opened The quantity of output channel for==562.5, it is thus desirable to be chosen using nearest neighbor point interpolation method in 30*30 output channel 563 output channels are simultaneously open-minded by its, take nearest neighbor point interpolation method to obtain the row and column table 1 specific as follows that output channel is opened It is shown：

Table 1

As shown in Table 1, the quantity for the output channel opened is 24 × 24=576, wherein, K=F=24, the output opened The ranks number of passage are specific as shown in table 1.

In the embodiment of the present application, if the channel switch is photoswitch, light corresponding to the K*F output channel is opened the light It is open-minded, light corresponding to unselected output channel is opened the light disconnection, and then it is described defeated to control the K*F output channel to export Go out light beam；And unselected output channel is off, carried out without beam Propagation into corresponding scanning optical fiber defeated Go out.

In the embodiment of the present application, if the channel switch is optical attenuator, the K*F output is adjusted by optical attenuator The output energy of each output channel in passage so that total output energy of the K*F output channel and display visual field gray scale The difference of required energy is not more than predetermined threshold value, and the predetermined threshold value is set according to actual conditions, and the predetermined threshold value is for example The value no more than 20*ER/ (M*N) can be taken, to cause total output energy of the K*F output channel and display visual field gray scale Required energy is identical or difference very little, and it is 0 to control by optical attenuator the output energy of unselected output channel, such as This, can effectively improve the effect that image is shown.

In the embodiment of the present application, scanning optical fiber and S non-interfering areas in the scanning fiber array 30 that prestored in controller 40 The corresponding relation in domain, and the corresponding relation includes region field-of-view information corresponding to each noninterference region, wherein, one is non-dry The corresponding region visual field in region is related to, S is the integer not less than 2.

Specifically, when prestoring the corresponding relation in controller 40, the scanning optical fiber scanned in fiber array 30 is defeated When going out the output beam, controller 40 scans the scanning optical fiber in fiber array 30, makes it according to the corresponding relation, control It is emitted the output beam and forms S visual field light, and by the S visual field light projection to human eye, so so that each moment institute S visual field light i.e. S pixel can be shown by stating near-eye display system, and each moment is only capable of displaying a picture in the prior art Vegetarian refreshments, and S is the integer not less than 2, so, it is possible effectively to reduce the switching frequency of channel switch, and within the unit interval In the case that switching frequency reduces, its capacity usage ratio can also improve therewith.

Specifically, before the scanning optical fiber during controller 40 controls scanning fiber array 30, because controller 40 has been opened Lead to from the M*N output channel and chosen the K*F output channel, then controller 40 can be according to the corresponding pass System, output beam described in K*F roots scanning fiber exit corresponding to K*F output channel is controlled to form S visual field light, and by described in S visual field light projection is to human eye.

Specifically, when obtaining the corresponding relation, controller 40 can will scan fiber array according to preparatory condition Scanning optical fiber in 30 is divided into S noninterference region, so as to get the corresponding relation, and the correspondence that will be got Relation is stored into the memory space of controller 40, or is stored in external storage hardware, and now, controller 40 is needed from described The corresponding relation is read in external storage hardware, the external storage hardware for example can be storage card, hard disk, USB device Etc. storage device.

In the embodiment of the present application, it is not overlapping with any one other region that the noninterference region characterizes the region.

Because the scanning optical fiber in scanning fiber array 30 has been divided into S noninterference region so that scanning fiber array 30 can control the S noninterference region to show S visual field light in synchronization, i.e., each moment can show S visual field Light, wherein, the corresponding pixel of a visual field light.

Specifically, the preparatory condition can be default dividing mode, the default dividing mode can be according to scanning The quantity of scanning optical fiber in fiber array 30 is divided into S noninterference region, big in the quantity of the scanning optical fiber When predetermined number, the scanning optical fiber scanned in fiber array 30 is divided into H noninterference region, at this moment S=H；Described When the quantity of scanning optical fiber is not more than predetermined number, the scanning optical fiber scanned in fiber array 30 is divided into J non-interfering areas Domain, at this moment S=J；Wherein, H and J is the integer not less than 2, and H and J can be with identical or different.

Certainly, the default dividing mode can divide according to the display visual field of the near-eye display system, and display regards Field is bigger, and its S value is also bigger；Show that visual field is smaller, its S value is also smaller, and the application is not specifically limited.Certainly, The default dividing mode can also be the value for directly setting S, then divide the scanning optical fiber scanned in fiber array 30 Into S noninterference region.

Specifically, it is individual non-dry to be divided into S according to preparatory condition by controller 40 for the scanning optical fiber scanned in fiber array 30 Region is related to, is specially：Controller 40 can also be drawn the scanning optical fiber scanned in fiber array 30 according to the size of exit pupil diameter It is divided into the S noninterference region, wherein, when the exit pupil diameter is bigger, S value is bigger；The exit pupil diameter gets over hour, S value is smaller；Such as the emergent pupil is in a diameter of 10*8mm both horizontally and vertically, then S=8；If the emergent pupil is in water A diameter of 10*10mm of gentle vertical direction, then it is, for example, 10 that S, which takes the integer more than 8,.

In the embodiment of the present application, controller 40 can also be according to the size of exit pupil diameter and showing for the near-eye display system Show visual field, the scanning optical fiber scanned in fiber array 30 is divided into the S noninterference region.

Specifically, the diameter of emergent pupil in the horizontal direction is with representing, emergent pupil vertical direction diameter with representing；It is described near The display visual field of eye display system in the horizontal direction is with representing；The display visual field table of the near-eye display system in the horizontal direction Show, then M*N roots scanning optical fiber in scanning fiber array 30 can be divided into S noninterference region, wherein,

S=[(2L*tan (/ 2)+) /] * [(2L*tan (/ 2)+/].Formula 1

Wherein, L represents human eye to the distance of scanning fiber array 30 in formula 1.

Such as setting emergent pupil is in a diameter of 8*8mm both horizontally and vertically, the near-eye display system horizontal and The display visual field of vertical direction is 40*40 degree；Then, M*N beams optical channel is segmented into S=[(2L*tan (40 °/2)+8)/8] * [(2L*tan (40 °/2)+8)/8] individual noninterference region.

Specifically, near-eye display system each moment can show s visual field light, each noninterference region difference simultaneously A corresponding region visual field；L=20mm is taken, then calculates S=9；In this way, the horizontal direction for scanning fiber array 30 is divided into 3 Individual region, each region be not overlapping；And the vertical direction for scanning fiber array 30 is also divided into 3 regions, each region It is not overlapping, so as to get 9 noninterference region, as shown in figure 9,9 noninterference region be A1, A2, A3, A4, A5, A6, A7, A8 and A9 noninterference region, and each noninterference region is not overlapping.

Wherein, referring to Fig. 9, the visual field that A1 is shown in the horizontal direction is -20 °~-7 °, the visual field that A1 is shown in vertical direction For 7 °~20 °, so understand, the region visual field that A1 is shown is { (- 20 °~-7 °), (7 °~20 °) }；Similarly, the area that A2 is shown Domain visual field is { ((- 7 °~7 °), (7 °~20 °) }；The region visual field that A3 is shown is { (7 °~20 °), (7 °~20 °) }；A4 is shown Region visual field be { (- 20 °~-7 °), (- 7 °~7 °) }；The region visual field that A5 is shown is { (- 7 °~7 °), (- 7 °~7 °) }； The region visual field that A6 is shown is { (7 °~20 °), (- 7 °~7 °) }；The region visual field that A7 is shown for (- 20 °~-7 °), (- 20 ° ~-7 °) }；The region visual field that A8 is shown be the region visual field that shows of { (- 7 °~7 °), (- 20 °~-7 °) } and A9 for (7 °~ 20 °), (- 20 °~-7 °) }.

In actual application, it can show that 9 visual field light show 9 in near-eye display system described in each moment Pixel, if display image is RGB color image, the switching frequency of the channel switch needed is minimum=4.8MHz, scans light Fine scan frequency is minimum=4KHz；And in the prior art each moment be only capable of displaying an a visual field light i.e. pixel, Such as exemplified by showing the monochrome image of a width 800*600, the refresh rate of human eye takes minimum requirements 30Hz, then channel switch is opened Close frequency it is minimum=14.3MHz, the scan frequency that scans optical fiber is minimum=12KHz；If RGB color image need to be shown, show Show coloured image need to use sequential method, therefore need channel switch switching frequency it is minimum=43MHz, scan optical fiber Scan frequency is minimum=36kHz；And 4.8MHz is far smaller than 43MHz, compared with prior art, using the above-mentioned implementation of the application Example can solve the problem that the high technical problem of the switching frequency of channel switch in the prior art, realize the switch for effectively reducing channel switch The effect of frequency, and within the unit interval in the case of switching frequency reduction, its capacity usage ratio can also improve therewith.

Further, because an interference region in the embodiment of the present application only corresponds to a region visual field so that one The maximum scan angle of scanning optical fiber in interference region is scan angle corresponding to the region visual field；And optical fiber is scanned in the prior art Every optical fiber in array needs total display visual field of the corresponding near-eye display system so that every scanning optical fiber be with it is described Scan angle corresponding to total display visual field, and a region visual field is only the part in total display visual field, necessarily to appoint What scan angle corresponding to a region visual field is less than scan angle corresponding to total display visual field so that is swept in the embodiment of the present application Retouch the maximum scan angle needed for optical fiber to reduce, so as to improve the scan frequency of scanning optical fiber.

In the embodiment of the present application, the scanning optical fiber scanned in fiber array 30 is divided into after S noninterference region, often Individual noninterference region can show all tonal gradations of image corresponding to the image information.

For example, as shown in figure 9, by 30*30 roots scan optical fiber exemplified by, by 30*30 roots scanning optical fiber be divided into 9 it is non-interfering Region, the quantity for the scanning optical fiber that each noninterference region has is 30*30/9=100；If corresponding to the image information The tonal gradation of image is 8, that is, has 256 tonal gradations, then by taking A1 as an example, A1 shows 256 using 100 scanning optical fiber Individual tonal gradation, when channel switch corresponding to 100 scanning optical fiber is opened, then the tonal gradation shown is 256；Show in A1 When the visual field gray value shown is 180, then need by 100*180/256=70.3, because scanning optical fiber is integer, then need to make With 71 scanning optical fiber be shown as 180 visual field gray scale.

In another embodiment of the application, first convergent lenses array and second convergent lenses array can be with It is automatically controlled liquid microlens array, wherein, the automatically controlled liquid microlens array for example can be electrically-controlled liquid crystal lenticule battle array Row, as shown in Figure 10, first electrically-controlled liquid crystal microlens array 52 is set in the close human eye side of scanning fiber array 30, swept The remote human eye side for retouching fiber array 30 sets the second electrically-controlled liquid crystal microlens array 53, and the first electrically-controlled liquid crystal lenticule battle array The electrically-controlled liquid crystal microlens array 53 of row 52 and second composition 1:1 afocal system, because scanning fiber array 30 is packaged in In bright substrate 305 so that external environmental light passes through 1:1 afocal system enters human eye, and because external environment just passes through 1:1 Afocal system enter human eye, the external world will not be zoomed in or out so that user can more really experience extraneous ring Border.

Specifically, the first electrically-controlled liquid crystal microlens array 52 is arranged on the emitting light path of scanning fiber array 30, it is used for The light beam being emitted to scanning fiber array 30 carries out collimation processing.

Because the first electrically-controlled liquid crystal microlens array 52 and the second electrically-controlled liquid crystal microlens array 53 are not added with voltage and not worked, The 53 unglazed function being converging or diverging with of first electrically-controlled liquid crystal microlens array 52 and the second electrically-controlled liquid crystal microlens array, i.e., it is not in The effect of existing light deflection, does not have light turnover, so so that external environmental light can pass through the first electrically-controlled liquid crystal to external environmental light Human eye is entered by the second electrically-controlled liquid crystal microlens array 53 after microlens array 52 and transparency carrier 305, realizes and observes Real external environment.

In another embodiment of the application, the near-eye display system can also include convergent lenses array, the meeting Poly- lens array is arranged at the close human eye side of scanning fiber array 30, and the convergent lenses array is arranged on scanning optical fiber On the emitting light path of array 30, the light beam for being emitted to scanning fiber array 30 carries out collimation processing, wherein, it is described to assemble thoroughly Lens array can be collimator lens array or automatically controlled liquid microlens array, have below using the convergent lenses array to be automatically controlled Exemplified by liquid crystal microlens array.

As shown in figure 11, first electrically-controlled liquid crystal microlens array is set in the close human eye side of scanning fiber array 30 52, the light beam for being emitted to scanning fiber array 30 carries out collimation processing, so as to show virtual image.

In the embodiment of the present application, using the near-eye display system comprising the first electrically-controlled liquid crystal microlens array 52 be used for into , it is necessary to set light modulation structure 54, light modulation structure 54 in the remote human eye side of scanning fiber array 30 when row augmented reality is shown Can be specifically the pdlc film layer with photoswitch, using showing virtual image and real external environment at times；If human eye Refresh rate is 30Hz, and the period corresponding to the refresh rate is divided into 2 sections, is used to show virtual image for a period of time, this time Inside disconnect the photoswitch of pdlc film layer so that pdlc film layer is in opaque state；Another a period of time is used to observe the real external world Environment, make the photoswitch of pdlc film layer open-minded in this time, so as to apply voltage to pdlc film layer, make its transparent state, External environmental light is enabled to pass through pdlc film layer and transparency carrier 305；And do not apply voltage to the first electrically-controlled liquid crystal lenticule Array 52, do not worked because the first electrically-controlled liquid crystal microlens array 52 is not added with voltage, the nothing of the first electrically-controlled liquid crystal microlens array 52 The function that light is converging or diverging with, i.e., the effect of light deflection is not presented, does not have light turnover to external environmental light, so so that be extraneous Ambient light can enter human eye by the first electrically-controlled liquid crystal microlens array 52 afterwards by pdlc film layer and transparency carrier 305, Realize and observe real external environment.

It is, of course, also possible to which the period corresponding to the refresh rate is divided into at least 3 sections, one or more snippets time therein is used In display virtual image, remaining at least a period of time is used to observe real external environment.

Beneficial effects of the present invention are as follows：

The scanning optical fiber in the scanning fiber array and S non-interfering areas are prestored in the embodiment of the present invention in controller The corresponding relation in domain, and the corresponding relation includes region field-of-view information corresponding to each noninterference region, by scanning light Scanning optical fiber in fibre array it is defeated from the output beam of spectrum groupware output when, the controller is according to the corresponding relation, control The scanning optical fiber in the scanning fiber array is made, it is emitted the output beam and forms S visual field light, and by the S Visual field light projection is to human eye, so so that near-eye display system described in each moment can show S visual field light i.e. S pixel Point, and in the prior art each moment be only capable of displaying a pixel, and S is the integer not less than 2, so, it is possible effectively to drop The switching frequency of low channel switch, and in the case that switching frequency reduces within the unit interval, its capacity usage ratio also can be with Raising

Embodiment two：

First aspect of the embodiment of the present invention additionally provides a kind of near-eye display system, including LASER Light Source 10, spectrum groupware 20th, scanning fiber array 30, pupil position detector and controller 40, spectrum groupware 20 includes M*N output channel, controller The corresponding relation of the scanning optical fiber and S noninterference region in scanning fiber array 30, and the corresponding relation are prestored in 40 Including region field-of-view information corresponding to each noninterference region, S, M and N are the integer not less than 2.

Wherein, LASER Light Source 10 is used to export laser；The laser that LASER Light Source 10 exports is divided after spectrum groupware 20 Into M*N light beam；The pupil position detector is used for the pupil position for obtaining user's pupil；Controller 40 is electrically connected Spectrum groupware 20 and the pupil position detector, for the pupil position according to acquisition, obtain user's pupil with The relative position of fiber array 30 is scanned, further according to the relative position and the display visual field gray scale of the image information, control Each output channel in spectrum groupware 20 is opened and disconnected；Scan the scanning optical fiber in fiber array 30 and the M*N Output channel couples, for transmitting the output beam exported from spectrum groupware 20；Controller 40 is according to the corresponding relation, control The scanning optical fiber in fiber array 30 is scanned, it is emitted described output beam and forms S visual field light, and by the S visual field Light projection is to human eye.

Specifically, can be arranged on the side of transparency carrier 305 referring to Fig. 6, the pupil position detector, certainly The lower section of transparency carrier 305 can also be arranged on, the pupil position detector is specifically as follows position-detection sensor, is used for The pupil position of user in real pupil, and the pupil position is transferred to controller 40；It is of course also possible to it is by controlling Device 40 obtains the pupil position that the pupil position detector acquisition arrives in real time.

Specifically, after controller 40 gets the pupil position, swept according to the pupil position with what is prestored The array position of fiber array 30 is retouched, user's pupil is got with scanning the relative position of fiber array 30, can be specifically to obtain Family pupil is taken with scanning the relative position at the center of fiber array 30；It is encapsulated in scanning fiber array 30 in transparency carrier 305 When, the relative position can also be position of user's pupil relative to the center of transparency carrier 305, wherein, the array position It can be stored in external storage hardware, now, controller 40 reads the array position, institute from the external storage hardware State external storage hardware storage device such as can be storage card, hard disk, USB device；Certainly, the array position can be with It is stored in the memory space in controller 40, the application is not specifically limited.

Specifically, controller 40 is according to the relative position and the display visual field gray scale of the image information, from the M*N Choose K*F output channel and its is open-minded in individual output channel, and by unselected output channel disconnection；Due to scanning light M*N roots scanning optical fiber in fibre array 30 couples with the M*N output channel, when K*F output channel is opened, K*F The output beam of output channel output, which can be transmitted to corresponding K*F roots, scans optical fiber, and then K*F roots scanning optical fiber is by described in Output beam is scanned and is projected to human eye, wherein, K and F are positive integer.

Because K*F output channel is chosen according to the relative position and the display visual field gray scale of the image information , and the relative position is position of user's pupil relative to scanning fiber array 30 center, it is possible thereby to determine that K*F is individual defeated Go out passage according to the pupil position to choose so that K*F output channel of selection is evenly distributed on the pupil position The surrounding put, the output beam that so, it is possible to ensure to choose K*F output channel output can be fully entered by scanning optical fiber Human eye so that human eye can receive all output beams in arbitrarily observation position, thus achieve the position to eye-observation Put and do not limit, user's effect experienced with good augmented reality can be given.

In the embodiment of the present application, controller 40 can be according to the relative position and the display visual field of image information ash Degree, chooses K*F output channel so that K*F output channel of selection is equal using interpolation method from the M*N output channel The even surrounding for being distributed in the pupil position, it can be ensured that choose the output beam of K*F output channel output by scanning light Fibre can fully enter human eye so that and human eye can receive all output beams in arbitrarily observation position, wherein, it is described to insert Value method is such as can be nearest neighbor point interpolation method.

In the embodiment of the present application, controller 40 can be first according to the display visual field gray scale of the image information, from described The quantity for the output channel that needs are opened is determined in M*N output channel, further according to the relative position, is inserted using nearest neighbor point Value method chooses the K*F output channel.

For example, with reference to Fig. 8 and Figure 12, passage corresponding to each visual field is M*N output channel, accordingly, due to dividing Optical assembly 20 has M*N output channel so that scanning fiber array 30 will necessarily have M corresponding with M*N output channel The scanning optical fiber of row N row, i.e. M*N roots scanning optical fiber；If M=N=30, there is 30*30 output channel；The nearly eye display system System in an initial condition, is defaulted as user's pupil 60 and is centrally located on the central axis 306 of transparency carrier 305, if the image Image corresponding to information is 8bit, there is 256 grey levels, and the gray value of zero visual field currently shown is 160, corresponding to need The quantity for the output channel opened for==562.5, that is, need in 30*30 output channel 563 output channels of selection simultaneously Its is open-minded, then 563 passages are uniformly chosen in 30*30 passages using nearest neighbor point interpolation method, take nearest neighbor point interpolation Method is obtained shown in the row and column table 1 specific as follows that output channel is opened：

Table 1

And when the center of user's pupil 60 is not located at the central axis 306 of transparency carrier 305, as shown in figure 12, Yong Hutong Hole 60 offset by 3 millimeters (mm) to the left, be shown for zero above-mentioned visual field, it is necessary to choose 563 from 30*30 output channel Output channel is simultaneously open-minded by its, and 563 passages are uniformly chosen in 30*30 passages by using nearest neighbor point interpolation method, are taken Nearest neighbor point interpolation method is obtained shown in the row and column table 2 specific as follows that output channel is opened：

Table 2

As shown in Table 2, the quantity for the output channel opened is 24 × 24=576, but because user's pupil 60 is to left avertence 3mm is moved so that the output channel opened also changes therewith so that the output channel opened is evenly distributed on user's pupil 60 surrounding, it can be ensured that human eye can be fully entered by scanning optical fiber by choosing the output beam of K*F output channel output, So that human eye can receive all output beams in arbitrarily observation position.

Because the M*N output channel is corresponding with the M row N column scan optical fiber in scanning fiber array 30, it follows that The first row in Tables 1 and 2 equally also illustrates that the row sequence number that optical fiber is scanned in optical fiber scanning array 30, second in Tables 1 and 2 Row represents to scan the row sequence number of optical fiber in optical fiber scanning array 30, can determine that pair thus according to the output channel ranks number opened The ranks number for the scanning optical fiber answered；As shown in Table 1 and Table 2, when user's pupil 60 offset by 3mm to the left, the output opened is led to Scanning optical fiber, which is also accordingly turned left, corresponding to road offset by, so as to ensure to choose the output of K*F output channel output Light beam can fully enter human eye by scanning optical fiber.

In another embodiment of the application, first convergent lenses array and second convergent lenses array can also be equal For automatically controlled liquid microlens array, wherein, the automatically controlled liquid microlens array for example can be electrically-controlled liquid crystal microlens array, As shown in Figure 10, first electrically-controlled liquid crystal microlens array 52 is set in the close human eye side of scanning fiber array 30, scanned The remote human eye side of fiber array 30 sets the second electrically-controlled liquid crystal microlens array 53, and the first electrically-controlled liquid crystal microlens array 52 and second electrically-controlled liquid crystal microlens array 53 composition 1:1 afocal system, due to scanning fiber array 30 be packaged in it is transparent In substrate 305 so that external environmental light passes through 1:1 afocal system enters human eye, and because external environment just passes through 1:1 Afocal system enters human eye, the external world will not be zoomed in or out so that user can more really experience external environment.

In the embodiment of the present application, using the near-eye display system comprising the first electrically-controlled liquid crystal microlens array 52 be used for into , it is necessary to set light modulation structure 54, light modulation structure 54 in the remote human eye side of scanning fiber array 30 when row augmented reality is shown Can be specifically the pdlc film layer with photoswitch, using showing virtual image and real external environment at times；If human eye Refresh rate is 30Hz, and the period corresponding to the refresh rate is divided into 2 sections, is used to show virtual image for a period of time, this time Inside disconnect the photoswitch of pdlc film layer so that pdlc film layer is in opaque state；Another a period of time is used to observe that reality is outer Boundary's environment, make the photoswitch of pdlc film layer open-minded in this time, so as to apply voltage to pdlc film layer, make its transparent shape State so that external environmental light can pass through pdlc film layer and transparency carrier 305；And it is micro- not apply voltage to the first electrically-controlled liquid crystal Lens array 52, do not worked because the first electrically-controlled liquid crystal microlens array 52 is not added with voltage, the first electrically-controlled liquid crystal microlens array 52 The unglazed function being converging or diverging with, i.e., the effect of light deflection is not presented, does not have light turnover to external environmental light, so so that outer Boundary's ambient light can be by entering people after pdlc film layer and transparency carrier 305 by the first electrically-controlled liquid crystal microlens array 52 Eye, realize and observe real external environment.

Beneficial effects of the present invention are as follows：

Spectrum groupware and pupil position detector is electrically connected in controller in one, the embodiment of the present invention, makes control Device obtains user's pupil with scanning the relative position of fiber array according to the pupil position of the pupil position detector acquisition Put, further according to the relative position and the display visual field gray scale of the image information, control each defeated in the spectrum groupware Go out opening and disconnecting for passage, it follows that can according to user's pupil and scan fiber array relative position it is automatic Output channel corresponding to opening carrys out output beam so that K*F output channel of selection is evenly distributed on the pupil position Surrounding, so as to ensure that the output beam fully enters human eye so that human eye can receive in arbitrarily observation position All output beams, thus achieve and the position of eye-observation is not limited, user can be given with good augmented reality body The effect tested；And interpupillary distance regulation is carried out to augmented reality equipment without user, it also avoid user because regulation result is inaccurate The defects of leading to not obtain good augmented reality experience.

Secondly, due to prestoring scanning optical fiber and S in the scanning fiber array in the embodiment of the present application controller The corresponding relation of noninterference region, and the corresponding relation includes region field-of-view information corresponding to each noninterference region, logical Over-scan fiber array in scanning optical fiber it is defeated from spectrum groupware output output beam when, the controller is according to the correspondence Relation, the scanning optical fiber in the scanning fiber array is controlled, it is emitted the output beam and form S visual field light, and will The S visual field light projection is to human eye, so so that near-eye display system described in each moment can show the S i.e. S of visual field light Individual pixel, and in the prior art each moment be only capable of displaying a pixel, and S is the integer not less than 2, be so, it is possible The switching frequency of channel switch is effectively reduced, and within the unit interval in the case of switching frequency reduction, its capacity usage ratio Also can improve therewith.

Embodiment three：

Second aspect of the embodiment of the present invention additionally provides a kind of virtual reality device, including two sets such as first aspect introduction Near-eye display system, wherein the first near-eye display system is corresponding with the left eye of people, the right eye pair of the second near-eye display system and people Should.

The concrete structure and running of near-eye display system are described in detail in the first aspect, herein just not Repeat again.

Specifically, the virtual reality device can also include shell, first near-eye display system and described second Near-eye display system is respectively provided with the housing.

Example IV：

Also a kind of augmented reality equipment of the third aspect of the embodiment of the present invention, including the nearly eye of two sets of such as first aspect introductions show Show system, wherein the first near-eye display system is corresponding with the left eye of people, the second near-eye display system is corresponding with the right eye of people；It is extraneous Ambient light enters the left eye of people by the convergent lenses array group of first near-eye display system, and passes through the described second nearly eye The convergent lenses array group of display system enters the right eye of people.

Specifically, the augmented reality equipment can also include shell, first near-eye display system and described second Near-eye display system is respectively provided with the housing.

Specifically, the convergent lenses array group includes the first convergent lenses array and the second convergent lenses array, it is described First convergent lenses array is arranged at the close human eye side of scanning fiber array 30, and second convergent lenses array is arranged at Scan the remote human eye side of fiber array 30.

In another embodiment of the application, the convergent lenses array group can also be the first electrically-controlled liquid crystal microlens array 52 With light modulation structure 54, it is being used to carry out augmented reality using the near-eye display system comprising the first electrically-controlled liquid crystal microlens array 52 , it is necessary to set light modulation structure 54 in the remote human eye side of scanning fiber array 30, light modulation structure 54 can be specifically during display Pdlc film layer with photoswitch, using showing virtual image and real external environment at times；If the refresh rate of human eye is 30Hz, the period corresponding to the refresh rate is divided into 2 sections, is used to show virtual image for a period of time, makes PDLC in this time The photoswitch of film layer disconnects so that pdlc film layer is in opaque state；Another a period of time is used to observe real external environment, this Make the photoswitch of pdlc film layer open-minded in the section time, so as to apply voltage to pdlc film layer, make its transparent state so that be extraneous Ambient light can pass through pdlc film layer and transparency carrier 305；And the first electrically-controlled liquid crystal microlens array 52 is not applied voltage to, by Voltage is not added with the first electrically-controlled liquid crystal microlens array 52 not work, the 52 unglazed convergence of the first electrically-controlled liquid crystal microlens array or hair Scattered function, i.e., the effect of light deflection is not presented, does not have light turnover to external environmental light, so so that external environmental light can By entering human eye by the first electrically-controlled liquid crystal microlens array 52 after pdlc film layer and transparency carrier 305, realize and observe Real external environment.

Beneficial effects of the present invention are as follows：

It is non-interfering due to prestoring the scanning optical fiber scanned in fiber array and S in the embodiment of the present application controller The corresponding relation in region, and the corresponding relation includes region field-of-view information corresponding to each noninterference region, is passing through scanning Scanning optical fiber in fiber array it is defeated from the output beam of spectrum groupware output when, the controller according to the corresponding relation, The scanning optical fiber in the scanning fiber array is controlled, it is emitted described output beam and forms S visual field light, and by the S Individual visual field light projection is to human eye, so so that near-eye display system described in each moment can show S visual field light i.e. S picture Vegetarian refreshments, and in the prior art each moment be only capable of displaying a pixel, and S is the integer not less than 2, be so, it is possible effectively The switching frequency of channel switch is reduced, and within the unit interval in the case of switching frequency reduction, its capacity usage ratio also can Improve therewith.

Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims

A kind of 1. near-eye display system, it is characterised in that including LASER Light Source, spectrum groupware, fiber array and controller are scanned, The spectrum groupware includes M*N output channel, and the scanning optical fiber in the scanning fiber array is prestored in the controller With the corresponding relation of S noninterference region, and the corresponding relation includes region field-of-view information corresponding to each noninterference region, S, M and N is the integer not less than 2；

The LASER Light Source is used to export laser；The laser of the LASER Light Source output is divided into after the spectrum groupware M*N light beam；The controller is electrically connected with the spectrum groupware, for the display visual field according to the image information prestored Gray scale, control the opening and closing of each output channel in the spectrum groupware；Scanning light in the scanning fiber array It is fine to be coupled with the M*N output channel, for transmitting the output beam from spectrum groupware output；The controller according to The corresponding relation, the scanning optical fiber in the scanning fiber array is controlled, it is emitted the output beam and form S visual field Light, and by the S visual field light projection to human eye.
2. the system as claimed in claim 1, it is characterised 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 arranged at 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 arranged at On the emitting light path of the collimation microscope group, for the laser of the collimation microscope group outgoing to be carried out closing beam processing；The coupler It is arranged on the emitting light path of the bundling device, for the laser coupled that the bundling device is emitted to be coupled in optical fiber to described； The coupling optical fiber is connected with the coupler, and the coupling optical fiber is used for the laser for being transferred through the coupler.
3. the system as claimed in claim 1, it is characterised in that the scanning fiber array includes horizontal direction scanning fibre bundle With vertical scan direction fibre bundle, the horizontal direction scanning fibre bundle is used to expand horizontal exit light beam；It is described to hang down Straight scanning direction fibre bundle is used to expand vertical exit light beam.
4. system as claimed in claim 3, it is characterised in that the horizontal direction scanning fibre bundle is close arrangement or interval The scanning fibre bundle of arrangement, the vertical scan direction fibre bundle are the scanning fibre bundle closely arranged or be intervally arranged, wherein, The close arrangement is that the interval between every adjacent two-beam fibre is not more than pre-determined distance.
5. system as claimed in claim 4, it is characterised in that include scanner per beam scanning optical fiber, the scanner is set On the scanning optical fiber, for the scanning optical fiber to be entered into horizontal deflection so that the light beam of the scanning fiber exit is also therewith Deflection.
6. the system as claimed in claim 1, it is characterised in that the spectrum groupware includes the first optical branching of 1 1*M type The second optical branching device and M*N channel switch of device, M 1*N type, incidence end and the laser light of first optical branching device The exit end in source is connected, and the M the second optical branching devices are connected one by one with M exit end of first optical branching device；It is described M*N channel switch is used for the unlatching and disconnection for controlling the M*N output channel, the M*N channel switch and the M*N Individual output channel corresponds.
7. the system as claimed in claim 1, it is characterised in that the spectrum groupware includes the optical branching device of 1 M*N type, institute The optical branching device for stating M*N types is integrated with M*N channel switch, and the M*N channel switch is used to control the M*N output logical The unlatching and disconnection in road, the M*N channel switch and the M*N output channel correspond.
8. the system as claimed in claim 1, it is characterised in that it is individual non-that the scanning optical fiber in the scanning fiber array corresponds to S Interference region, it is specially：

The controller is used for according to preparatory condition, and it is individual non-interfering that the scanning optical fiber in the scanning fiber array is divided into S Region.
9. the system as claimed in claim 1, it is characterised in that the controller is used for the size according to exit pupil diameter, by institute The scanning optical fiber stated in scanning fiber array is divided into the S noninterference region.
10. the system as described in claim any one of 1-9, it is characterised in that the near-eye display system also includes assembling thoroughly Lens array group, the convergent lenses array group include first group of convergent lenses array and second group of convergent lenses array, and described One group of convergent lenses array is arranged at the close human eye side of the scanning fiber array, and second group of convergent lenses array is set It is placed in the remote human eye side of the scanning fiber array.
11. system as claimed in claim 10, it is characterised in that first group of convergent lenses array and second group of meeting Poly- lens array is collimation convergent lenses array, and first group of convergent lenses array and second convergent lenses array Composition 1:1 telescopic system.
12. system as claimed in claim 10, it is characterised in that first group of convergent lenses array and second group of meeting Poly- lens array is automatically controlled liquid microlens array, and first group of convergent lenses array and the second convergent lens battle array Row composition 1:1 afocal system.
13. the system as described in claim any one of 1-9, it is characterised in that the near-eye display system also includes assembling thoroughly Lens array, the convergent lenses array are arranged at the close human eye side of the scanning fiber array.
14. the system as claimed in claim 1, it is characterised in that the near-eye display system also includes light modulation structure, the tune Photo structure is arranged at the remote human eye side of the scanning fiber array.
15. a kind of virtual reality device, it is characterised in that including the nearly eye two sets as described in any claim in claim 1-14 Display system, wherein the first near-eye display system is corresponding with the left eye of people, the second near-eye display system is corresponding with the right eye of people.
16. a kind of augmented reality equipment, it is characterised in that including the nearly eye two sets as any one of claim 10-12 Display system, wherein the first near-eye display system is corresponding with the left eye of people, the second near-eye display system is corresponding with the right eye of people；Outside Boundary's ambient light enters the left eye of people by the convergent lenses array group of first near-eye display system, and near by described second The convergent lenses array group of eye display system enters the right eye of people.