CN108931850A - A kind of wearable optical system, device and method - Google Patents
A kind of wearable optical system, device and method Download PDFInfo
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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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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Abstract
This application involves a kind of wearable optical systems, device and method.The wearable optical system includes：Display unit, the display unit are configured to generate image information；And image combining unit, described image combining unit are configured to receive the light of the expression described image information from the display unit, the light is synthesized with extraneous scene via described image combining unit and is watched for observer.The light of described image information is guided via lens subassembly, then by the amplification of the first free curved surface prism and the eyes for being reflected into the observer of the second free curved surface prism, external world's scene is transmitted into the eyes of the observer through the synthesis face of the first free curved surface prism and the second free curved surface prism.The wearable optical system prism thickness of the application is small, light-weight, compact-sized, and image quality is high.
Description
Technical field
This application involves optical projection display technologies, relate more specifically to wearable optical projection system, device and side
Method.
Background technique
The optical system that wearable device is light-weight, carrying comfort level and image quality are high is that current optical design is pursued
Target.Wearable projection device appears in military field earliest, can be aimed at and be known with real-time display tactical information, auxiliary mark
Not, it may also be used for night vision system.With being constantly progressive for design concept, manufacture level and micro display technology, wearable projection
Equipment increasingly minimizes, and progresses into daily life.However, at present there is knot in wearable projection optical system
Structure is complicated, adjustment and processing accuracy are high, volume weight is big, wears the problems such as causing neck fatigue for a long time.
Therefore, this field needs improved wearable projection optical system.
Summary of the invention
To achieve the goals above, this application provides wearable optical projection system, device and method, with improve at
Image quality amount, and reduce volume, mitigate weight.
According to one embodiment of the application, a kind of wearable optical system is provided, including：Display unit, it is described aobvious
The portion of showing is configured to generate image information；And image combining unit, described image combining unit are configured to receive from described aobvious
Show that the light of the expression described image information in portion, the light are synthesized with extraneous scene via described image combining unit and seen for observer
It sees.
According to the one aspect of this Shen, the optical system further includes lens subassembly, and described image combining unit includes first
The light of free curved surface prism and the second free curved surface prism, described image information is guided via the lens subassembly, is then passed through
The amplification of first free curved surface prism and the eyes for being reflected into the observer of the second free curved surface prism, external world's scape
As the synthesis face through the first free curved surface prism and the second free curved surface prism is transmitted into the eyes of the observer.
According to the one aspect of this Shen, the lens subassembly includes the first non-spherical lens and the second non-spherical lens, the
One non-spherical lens and the second non-spherical lens are configured to correct the aberration of the first free curved surface prism enlarged drawing generation.
According to the one aspect of this Shen, the first non-spherical lens is rectangle positive lens, the first face of the first non-spherical lens
It is spherical surface for aspherical, the second face；Second non-spherical lens is rectangle negative lens, and the first face of the second non-spherical lens is aspheric
Face, the second face are spherical surface；First free curved surface prism includes one or more free form surfaces；Second free curved surface prism includes inclining
Inclined-plane, the inclined surface be free form surface, the free form surface of the second free curved surface prism be coated with part reflective semitransparent film and with
One of free form surface gluing forms the synthesis face in first free curved surface prism.
According to the one aspect of this Shen, the display unit is Autoluminescence liquid crystal on silicon display element, the outgoing of image planes edge
The range of the angle theta of light and image planes normal is ± 10 °≤θ≤150 °.
According to the one aspect of this Shen, the first free curved surface prism is main function amplification prism, the first free curved surface prism
The image information amplification that the display unit generates is adjusted to the eyes that directional light enters the observer.
According to the one aspect of this Shen, the first free curved surface prism includes three free form surfaces, the first free curved surface prism
The face types of three free form surfaces be one of the following：Anamorphic aspherical surface, polynomial surface and double cubic surface.
According to the one aspect of this Shen, vertical direction maximum field of view top edge light and the first free curved surface prism and second
Incident angular dependence when the surface of free curved surface prism is intersected twice meets following relationship：
Wherein θ1Third time, which is issued, from the display unit for vertical direction maximum field of view top edge light passes through first freely
Incidence angle when curved surface prism edge, θ2Pass through the second free form surface for vertical direction maximum field of view top edge light last time
Incidence angle when prism, n ' value are the refractive index of material.
According to the one aspect of this Shen, the horizontal field of view angle of the observer and vertical field of view tangent of an angle ratio are 16: 9.
According to another embodiment of the application, a kind of wearable device is provided, including：Processor, the processing
Device is configured to communicate with display unit image information is supplied to display unit；The display unit, the display unit are configured to
Show the image information from the processor；And image combining unit, described image combining unit are configured to receive from institute
The light of the expression described image information of display unit is stated, the light is synthesized with extraneous scene for observer via described image combining unit
Viewing.
According to the one aspect of the application, the wearable device further includes lens subassembly, described image combining unit packet
Include the first free curved surface prism and the second free curved surface prism, the light of the expression described image information from the display unit via
Then lens subassembly guidance is reflected into institute by the amplification of the first free curved surface prism and the second free curved surface prism
State the eyes of observer, external world's scene through the synthesis face of the first free curved surface prism and the second free curved surface prism transmit into
Enter the eyes of the observer.
According to the one aspect of this Shen, the lens subassembly includes the first non-spherical lens and the second non-spherical lens, the
One non-spherical lens and the second non-spherical lens are configured to correct the aberration of the first free curved surface prism enlarged drawing generation.
According to the one aspect of this Shen, the first non-spherical lens is rectangle positive lens, the first face of the first non-spherical lens
It is spherical surface for aspherical, the second face；Second non-spherical lens is rectangle negative lens, and the first face of the second non-spherical lens is aspheric
Face, the second face are spherical surface；First free curved surface prism includes one or more free form surface free form surfaces；Second free form surface rib
Mirror includes inclined surface, and the inclined surface is free form surface, and the free form surface of the second free curved surface prism is coated with half-reflection and half-transmission
Film and the synthesis face is formed with free form surface gluing one of in the first free curved surface prism.
According to another embodiment of the application, a kind of method for wearable device is provided, including：It provides and
From the image information of processor；The image information from the processor is shown in display unit；Come via image combining unit reception
From the light of the expression described image information of the display unit, the light is synthesized with extraneous scene for seeing via described image combining unit
Survey person's viewing.
According to the one aspect of this Shen, the light of the expression described image information from the display unit draws via lens subassembly
It leads, then the amplification of the first free curved surface prism by described image synthesis and the second free curved surface prism are reflected into institute
State the eyes of observer, external world's scene through the synthesis face of the first free curved surface prism and the second free curved surface prism transmit into
Enter the eyes of the observer.
According to the one aspect of this Shen, at least one free form surface of the second free curved surface prism is coated with part reflective semitransparent film simultaneously
And the synthesis face is formed at least one free form surface gluing in the first free curved surface prism.
According to the further embodiment of the application, a kind of computer readable storage medium is provided, it is described computer-readable
The computer executable instructions of storage medium storage for performing the following operations：Image information from processor is provided；Aobvious
The portion of showing shows the image information from the processor；The expression figure from the display unit is received via image combining unit
As the light of information, the light is synthesized with extraneous scene via described image combining unit and is watched for observer.
According to the one aspect of this Shen, the light of the expression described image information from the display unit draws via lens subassembly
It leads, then the amplification of the first free curved surface prism by described image synthesis and the second free curved surface prism are reflected into institute
State the eyes of observer, external world's scene through the synthesis face of the first free curved surface prism and the second free curved surface prism transmit into
Enter the eyes of the observer.
According to the one aspect of this Shen, at least one free form surface of the second free curved surface prism is coated with part reflective semitransparent film simultaneously
And the synthesis face is formed at least one free form surface gluing in the first free curved surface prism.
Conventional lenses formula structure is mostly the goggle structure of rotational symmetry, although optical property can be close to diffraction limit and energy
It is enough correcting distorted to a certain extent, but structure is complicated for multiple lens, adjustment and processing accuracy are high, volume weight
Very big, neck fatigue can be caused for a long time by wearing.Compared to conventional lenses formula or free form surface/refraction and diffraction hybrid structure, the application
The wearable optical projection system image quality provided is high, and structure is simple, small in size, light-weight, comfortable wearing.
The wearable optical projection technology of the application can be widely applied to amusement, analog simulation training, surgical operation etc.
The every field of virtual reality technology.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram according to the wearable optical system of the application one embodiment；
Fig. 2 is the part light path schematic diagram according to the wearable optical system of the application one embodiment；
Fig. 3 is the vertical axial aberration characteristic curve according to the wearable optical system of the application one embodiment；
Fig. 4 is the curvature of field and distortion performance curve according to the wearable optical system of the application one embodiment；
Fig. 5 is the modulation transfer function characteristic curve MTF according to the wearable optical system of the application one embodiment；
And
Fig. 6 is the exemplary computer system block diagram according to one embodiment of the application.
Specific embodiment
It will be described in detail with reference to the accompanying drawings various embodiments.In place of possible, same reference numerals will pass through attached drawing for referring to
For same or like part.To particular example and reference made by realizing is for explanatory purposes, and to be not intended to limit the application
Or the scope of the claims.
Wording " exemplary " is used herein to mean that " as example, example or showing ".Here depicted as " example
Property " any realization be not necessarily to be construed as preferred or advantageous over other realize.
The optical system of wearable projection display apparatus is an image enhancement system, image caused by micro-display
Amplify by optical system, the virtual image of an amplification is presented at a certain distance from before human eye, user is allow to be immersed in void completely
It among quasi- situation, can also be combined with reality, form a kind of expansion reality scene.
This application provides a kind of wearable projection optical systems of lightweight.As shown in Figure 1, wearable optical system
100 may include display unit 5, lens subassembly 110, image combining unit 120.Display unit 5 is configured to generate image information, citing
For, display unit 5 can be pixel, such as liquid crystal on silicon display element (Lcos).Image combining unit 120, which is configured to receive, to be come
From the light of the expression of display unit 5 image information, light is via image combining unit 120 and the extraneous synthesis of scene 130 for observer
140 viewings.Lens subassembly 110 may include the first non-spherical lens 4 and the second non-spherical lens 3.Image combining unit 120 can be with
Including the first free curved surface prism 2 and the second free curved surface prism 1.Wherein the first surface 1a of the second free curved surface prism 1 is
It is plane that free form surface, which is the remaining surface 11,12,13 of the second free curved surface prism 1,；Three of first free curved surface prism 2
Surface 2a, 2b, 2c are free form surface, and the remaining surface 21,22,23,24,25,26 of the first free curved surface prism 2 is all flat
Face.
Observation unit 140 includes the eyes of user, i.e. human eye or entrance pupil.Indicate the light of image information via lens subassembly 110
Then the amplification of the first free curved surface prism 2 and the eyes for being reflected into user of the second free curved surface prism 1 are passed through in guidance,
Extraneous scene 130 is transmitted into the eyes of user through the synthesis face of the first free curved surface prism 2 and the second free curved surface prism 1.
First non-spherical lens 4 and the second non-spherical lens 3 are configured to correct the picture of the first free curved surface prism enlarged drawing generation
Difference.First free curved surface prism is main function amplification prism, and the first free curved surface prism puts the image information that display unit generates
It is adjusted to the eyes that directional light enters user greatly.
By object side to human eye side, wearable optical system includes：Lcos5, the first non-spherical lens 4, second are aspherical
Lens 3, the first free curved surface prism 2, the second free curved surface prism 1.One face pixel (see Fig. 1) generates image, the light of image according to
The secondary aberration correction by the first non-spherical lens and the second non-spherical lens, then passes through the amplification of the first free curved surface prism
With the entrance pupil the being reflected into i.e. human eye of the second free form surface, optical system light path figure is as shown in Figure 2.
The first free form surface 1a positioned at the first free curved surface prism is extraneous scene and virtual image synthesizes face, the plating of this face
Enter human eye by this face after thering is part reflective semitransparent film, extraneous scene and virtual image to synthesize.
In one embodiment, the face type of free curved surface prism 2 and 1 can be one of following three kinds of face types：It deforms non-
Spherical surface, double-curved surface XY polynomial surface and double cubic surface.
A. anamorphic aspherical surface
In formula (1), CxIt is the radius of curvature of curved surface X-direction in X-Z plane, CyIt is curved surface side Y in Y-Z plane
To radius of curvature, KxIt is the whose conic coefficient of curved surface X-direction, KyIt is the whose conic coefficient of curved surface Y-direction, AiIt is 4,6,
8,10 ... 2n rank asphericity coefficients, about Z axis rotational symmetry, PiThe 2n rank non-rotational symmetry coefficient that is 4,6,8,10 ....The side XYZ
See Fig. 1 to expression (outward for vertical paper, Y-direction is that up, Z-direction is to turn right to X-direction).Each parameter is in real number range.
B. double-curved surface XY polynomial surface
The surface equation of double-curved surface XY polynomial surface (AXYP)：
Wherein, cx, cyIt is vertex curvature radius of the curved surface in meridian direction and sagitta of arc direction, k respectivelyx, kyIt is meridian respectively
With the quadratic surface coefficient in sagitta of arc direction, C(m, n)It is multinomial xmynCoefficient, p be polynomial highest exponential.Each parameter exists
Real number range.
C. double cubic surface
Wherein,
The radius value of X-direction is set in the first parameter column.If being set as 0, the radius value in the direction x is considered infinite
Greatly.The parameter definition of double cubic surface：First parameter Rx, the second ginseng Kx.Wherein, Kx is quadratic surface coefficient.Each parameter is real
Number range.
In one embodiment, aspherical face type equation is：
Wherein, c is radius of curvature, and k is quadratic surface coefficient.Other parameters：First parameter alpha1, the second parameter alpha2, third ginseng
Number α3, the 4th parameter alpha4, the 5th parameter alpha5, the 6th parameter alpha6, the 7th parameter alpha7, the 8th parameter alpha8.Each parameter is real number range.
As shown in Figure 1, vertical direction (Y-direction) maximum field of view's top edge light and the first free curved surface prism and second are certainly
Incident angular dependence when being intersected twice by the surface of curved surface prism meets following relationship：
Wherein θ1It is issued for vertical direction maximum field of view top edge light from display unit and passes through the first free curved surface prism side
Incidence angle when edge, θ2Pass through incidence angle when the second free curved surface prism, n ' for vertical direction maximum field of view top edge light
Value is the refractive index of the second free curved surface prism material therefor, and n ' value range can be 1.4 to 1.6.Second free form surface rib
The material of mirror can be using materials such as optical glass, optical plastic, optical resins.
For brevity, θ is shown in figure1The 5th warp is issued from display unit for vertical direction maximum field of view top edge light
Cross incidence angle when the first free curved surface prism edge.Optionally, vertical direction maximum field of view top edge light is sent out from display unit
Incidence angle θ when third, the 4th and the 5th the first free curved surface prism edge of process out1It is all satisfied above-mentioned relation formula.Together
Sample shows θ for brevity in figure2Pass through the second free form surface for vertical direction maximum field of view top edge light last time
Incidence angle when prism.Optionally, vertical direction maximum field of view top edge light is for the first time and last time is free by second
Incidence angle θ when curved surface prism2It is all satisfied above-mentioned relation formula.
In one embodiment, the first free curved surface prism 2 and the second free curved surface prism 1 are glued, cemented surface be first from
By the first free form surface 2c of curved surface prism, part reflective semitransparent film is coated on the free form surface 1a of the second free curved surface prism.
In one embodiment, display unit can be Autoluminescence liquid crystal on silicon display element.As shown in Figure 1, image planes are emitted
Angle θ is the angle of image planes edge emergent ray and image planes normal, and the range of θ is ± 10 °≤θ≤150 °.For example, image planes go out
Firing angle θ can be ± 5 ° or ± 10 °.Visual field is small when θ takes ± 5 °, and the illuminance of acquisition is high；Visual field is big when θ takes ± 10 °, obtains
Illuminance it is slightly lower.
In one embodiment, the range that the horizontal field of view angle of the eyes of user is ω is at ± 10 °≤ω≤± 60 °, citing
For, ω (see Fig. 1) can take ± 7.5 °.The range of the vertical field of view angle h of the eyes of user is lifted at ± 6 °≤ω≤± 40 °
For example, h (vertical direction of ω) can take ± 6 °.Horizontal field of view angle and vertical field of view tangent of an angle ratio are 16: 9.
In one embodiment, the range of the entrance pupil η (see Fig. 1) of the eyes of user for example, can enter in 3≤η≤8
Pupil η can be 5mm.The distance in human eye entrance pupil to the second free curved surface prism face 13 is into interpupillary distance l range in 15≤l≤20mm,
For example, entering interpupillary distance l is 20mm.The horizontal distance in thickness, that is, face 26 of the first free curved surface prism to face 25 is 5mm.Lcos
Pixel can be 640 × 480, effective dimensions can be 0.294 inch.
In one embodiment, the angle of second 1 two on-right angles of free curved surface prism is 30 ° and 150 ° (that is, 1a and 11
Angle be 30 °, the angle of 1a and 13 is 150 °).The angle of first free curved surface prism 24 and 25 is 120 °.Cemented prism
The first parallel error of (that is, gluing of the first free curved surface prism and the second free curved surface prism) is 3 ', and the second parallel error is
5′。
In one embodiment, lens subassembly 110 can be used as aberration correcting lens.Aberration correcting lens include that two panels is aspherical
Lens：First non-spherical lens 4 and the second non-spherical lens 3, wherein the first non-spherical lens 4 is positive lens, second is aspherical
Lens 3 are negative lens.
In one embodiment, the directional light that area source generates enters Lcos through PBS prism back reflection s light, by Lcos tune
It is emitted the image of p light after system, is again introduced into after PBS prism after entering the first non-spherical lens 4 and enters optical system.
In one embodiment, human eye to Lcos image planes total optical path length be less than 50mm.
In one embodiment, the face type tolerance PV value of non-spherical lens and prism be less than or equal to 1um, thickness deviation be ±
0.03mm, bias are ± 0.03mm, and tilting is ± 1 '.
In one embodiment, the first non-spherical lens, the second non-spherical lens, the first free curved surface prism, the second freedom
The thickness deviation of curved surface prism is less than or equal to ± 0.02mm, and inclination, eccentric tolerance are less than or equal to ± 0.02mm, face type tolerance PV
Less than or equal to 1 micron, the first parallel error is less than or equal to 3 ', and the second parallel error is less than or equal to 5 ', first free curved surface prism
Thickness be less than or equal to 5mm.
In one embodiment, optical system vertical axial aberration characteristic curve as shown in figure 3, place and distortion performance curve such as
Shown in Fig. 4, modulation transfer function is as shown in figure 5, Fig. 3,4,5 are all the evaluation method of the image quality of optical system.
The wearable projection optical system of the lightweight of the application is simple and compact for structure, and lens group lens are few, prism thickness
It is small and small in size, light-weight, quality of optical imaging is high.
Compared with other wearable projection optical systems, from technical parameter for, the application because use it is lesser go out
Pupil and lesser field angle are to obtain more frivolous optical texture.Because using completely new optical material to obtain more
Clearly image quality.Because using the higher pixel of smaller brightness to obtain higher clarity.From principle
For, the application folding based on light different from the complicated optical waveguide principle that wearable projection optical systems some at present use
Penetrate, reflect and be totally reflected, used more be easily understood, more essential optical principle.And the application uses unique, off-axis
, with the aspherical mode combined aberration correction simultaneously is imaged in nonaxisymmetrical three kinds of free-curved-surface-types, be that the application is first
Wound.
It should be appreciated that above-described embodiment is only as an example, not a limit, those skilled in the art be further contemplated that it is more its
His similar approach realizes the combination of virtual image and extraneous scene.Such implementation should not be interpreted to cause departing from
Scope of the present application.
With reference to Fig. 6, a kind of illustrative computer system 600 is shown.Computer system 600 may include logical process
Device 602, such as execute core.Although illustrating a logic processor 602, in other embodiments, computer system 600
It can have multiple logic processors, for example, the multiple execution cores of each processor substrate and/or multiple processor substrates, wherein
Each processor substrate can have multiple execution cores.As shown, various computer readable storage mediums 610 can pass through one
Various system components are coupled to logic processor 602 by item or multiple pieces of system bus interconnection, the system bus.System bus can
If be dry type bus structures in any type, including memory bus or Memory Controller, peripheral bus and
Use the local bus of any one of various bus architectures.In the exemplary embodiment, computer-readable
Storage medium 610 may include such as random access memory (RAM) 604, storage equipment 606 (for example, electromechanical hard drives,
Solid-state hard drives etc.), firmware 608 (for example, quick flashing RAM or ROM) and removable memory device 618 be (such as CD-
ROM, floppy disk, DVD, flash drive, External memory equipment etc.).It will be appreciated by the person skilled in the art that can make
With other types of computer readable storage medium, such as cassette, flash card and/or digital video disc.It is computer-readable to deposit
Storage media 610 can provide the executable instruction 622 of computer, data structure, program module and be used for computer system
The non-volatile and volatile storage of 600 other data.Basic input/output (BIOS) 620 --- it includes such as
The basic routine program of the transinformation between the unit of computer system 600 is helped during starting --- it can be stored
In firmware 608.A large amount of program can be stored in firmware 608, storage equipment 606, RAM 604 and/or detachable storage
It in equipment 618, and can be executed by logic processor 602, logic processor 602 includes operating system and/or application program.
Order and information can be received by input equipment 616 by computer system 600, and input equipment 616 may include but unlimited
In keyboard and sensing equipment.Other input equipments may include microphone, control stick, game paddle, scanner etc..These and
Other input equipments are connected to logic processor 602 often through the serial port interface for being coupled to system bus, but
It is that can also be connected by other interfaces, such as parallel port, game port or universal serial bus (USB).Display or
Other types of display equipment can also be connected to system bus, such as video adapter via interface, can be at figure
It manages a part of unit 612 or is connected to graphics processing unit 612.In addition to display, computer typically comprises others
Peripheral output devices, such as loudspeaker and printer (not shown).The exemplary system of Fig. 6 can also include host adapter,
Small computer system interface (SCSI) bus and the External memory equipment for being connected to SCSI bus.Computer system 600
It can be grasped in the networked environment of logical connection for using one or more remote computers (such as, some remote computer)
Make.Remote computer can be other computer, server, router, network PC, peer device or other common networks
Node, and typically may comprise multiple or all units in the unit described above with respect to computer system 600.When
In LAN or WAN networked environment in use, computer system 600 can be connected to by network interface card 614 LAN or
WAN.Network interface card (NIC) 614 (it can be internal or external) may be connected to system bus.In networked environment, phase
The program module or their some parts described for computer system 600 can be stored in remote memory storage and set
In standby.It will be appreciated that network connection described herein is exemplary, and it can be used and establish communication chain between the computers
Other means on road.
In one or more exemplary embodiments, described function and process can hardware, software, firmware,
Or any combination thereof in realize.If realized in software, each function can be used as one or more item instructions or code is deposited
Storage is transmitted on a computer-readable medium or by it.Computer-readable medium includes computer storage media and communication media
The two comprising any medium for facilitating computer program to shift from one place to another.Storage medium, which can be, to be calculated
Any usable medium of machine access.It is non-limiting as example, such computer-readable medium may include RAM, ROM,
EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage apparatus can be used to carrying or store instruction
Or data structure form desirable program code and any other medium that can be accessed by a computer.For firmware and/or software
It realizes, these methods can be realized with the module (for example, program, function etc.) for executing functions described herein.It is tangible
Any machine readable media that ground embodies instruction can be used for realizing method system described herein.For example, software code can
It is stored in the memory of memory of such as movement station etc, and by such as desktop computer, laptop computer, service
Device computer, mobile device the processors such as microprocessor execute.Memory may be implemented inside processor or outside processor
Portion.As it is used herein, term " memory " refer to any kind of long-term, short-term, volatibility, it is non-volatile or other
Memory, and it is not limited to the Jie of any certain types of memory or certain number of memory or memory storage on it
The type of matter.
Foregoing description and diagram are only provided as illustrated examples.Any of claim element of singular is drawn
It states, such as should not be construed as the element being limited to odd number using the citation of the article " one ", " certain " or "the".Such as it uses herein
" first ", the titles such as " second " do not limit any reference of depth of origin the quantity or order of those elements usually.To the first He
The reference of second element is not meant to also not meaning that first element must be in some way using only two elements herein
Before second element.Unless otherwise stated, otherwise a set of pieces may include one or more elements.Technical staff is for every
Kind specific application can realize described structure with different modes, but such implementation should not be interpreted to cause to take off
From scope of the present application.
The previous description for providing the disclosed embodiments can be made or use to make any person skilled in the art all
The application.The various modifications of these embodiments will be apparent for a person skilled in the art, and defined herein
General Principle can be applied to other embodiments without departing from spirit herein or range.The application is not intended to as a result,
It is defined in embodiments shown herein, but should be awarded and appended claims and principle disclosed herein and novelty
The consistent broadest range of feature.
Claims (17)
1. a kind of wearable optical system, including：
Display unit, the display unit are configured to generate image information；And
Image combining unit, described image combining unit are configured to receive the expression described image information from the display unit
Light, the light are synthesized with extraneous scene via described image combining unit and are watched for observer.
2. optical system according to claim 1, it is characterised in that：The optical system further includes lens subassembly, described
Image combining unit includes the first free curved surface prism and the second free curved surface prism, and the light of described image information is via the lens
Component guidance, is then reflected into the observer by the amplification of the first free curved surface prism and the second free curved surface prism
Eyes, external world's scene through the synthesis face of the first free curved surface prism and the second free curved surface prism is transmitted into the sight
The eyes of survey person.
3. optical system according to claim 2, it is characterised in that：The lens subassembly include the first non-spherical lens and
Second non-spherical lens, the first non-spherical lens and the second non-spherical lens are configured to correct the amplification of the first free curved surface prism
The aberration that image generates.
4. optical system according to claim 3, it is characterised in that：
First non-spherical lens be rectangle positive lens, the first face of the first non-spherical lens be it is aspherical, the second face is spherical surface；
Second non-spherical lens be rectangle negative lens, the first face of the second non-spherical lens be it is aspherical, the second face is spherical surface；
First free curved surface prism includes one or more free form surfaces；Second free curved surface prism includes inclined surface, described to incline
Inclined-plane is free form surface, the free form surface of the second free curved surface prism be coated with part reflective semitransparent film and with the first free form surface
One of free form surface gluing forms the synthesis face in prism.
5. optical system according to claim 1, it is characterised in that：The display unit is that Autoluminescence liquid crystal on silicon is shown
The range of the angle theta of pixel, image planes edge emergent ray and image planes normal is ± 10 °≤θ≤150 °.
6. optical system according to claim 2, it is characterised in that：First free curved surface prism is main function amplification rib
The image information amplification that the display unit generates is adjusted to directional light into the observer's by mirror, the first free curved surface prism
Eyes.
7. optical system according to claim 4, it is characterised in that：First free curved surface prism includes three freely bent
The face type in face, three free form surfaces of the first free curved surface prism is one of the following：Anamorphic aspherical surface, polynomial surface,
And double cubic surface.
8. optical system according to claim 5, it is characterised in that：Vertical direction maximum field of view top edge light and first
Incident angular dependence when the surface of free curved surface prism and the second free curved surface prism is intersected twice meets following relationship：
Wherein θ1Third time, which is issued, from the display unit for vertical direction maximum field of view top edge light passes through the first free form surface rib
Incidence angle when mirror edge, θ2When passing through the second free curved surface prism for vertical direction maximum field of view top edge light last time
Incidence angle, n ' value be material refractive index.
9. optical system according to claim 2, it is characterised in that：The horizontal field of view angle of the observer and vertical field of view
Tangent of an angle ratio is 16:9.
10. a kind of wearable device, including：
Processor, the processor are configured to communicate with display unit image information is supplied to display unit；
The display unit, the display unit are display configured to the image information from the processor；And
Image combining unit, described image combining unit are configured to receive the expression described image information from the display unit
Light, the light are synthesized with extraneous scene via described image combining unit and are watched for observer.
11. device according to claim 10, it is characterised in that：The wearable device further includes lens subassembly, institute
Stating image combining unit includes the first free curved surface prism and the second free curved surface prism, the expression figure from the display unit
As the light of information is guided via the lens subassembly, then by the amplification of the first free curved surface prism and the second free form surface rib
The eyes for being reflected into the observer of mirror, external world's scene is through the first free curved surface prism and the second free curved surface prism
Synthesis face be transmitted into the eyes of the observer.
12. device according to claim 11, it is characterised in that：The lens subassembly includes the first non-spherical lens and the
Two non-spherical lenses, the first non-spherical lens and the second non-spherical lens are configured to correct the first free curved surface prism enlarged drawing
As the aberration generated.
13. device according to claim 12, it is characterised in that：
First non-spherical lens be rectangle positive lens, the first face of the first non-spherical lens be it is aspherical, the second face is spherical surface；
Second non-spherical lens be rectangle negative lens, the first face of the second non-spherical lens be it is aspherical, the second face is spherical surface；
First free curved surface prism includes one or more free form surfaces；
Second free curved surface prism includes inclined surface, the inclined surface be free form surface, the second free curved surface prism it is described from
Part reflective semitransparent film is coated with by curved surface and forms described synthesize with free form surface gluing one of in the first free curved surface prism
Face.
14. a kind of method for wearable device, including：
Image information from processor is provided；
The image information from the processor is shown in display unit；
The light of the expression described image information from the display unit is received via image combining unit, the light is via described image
Combining unit is synthesized with extraneous scene and is watched for observer.
15. according to the method for claim 14, it is characterised in that：
The light of expression described image information from the display unit is guided via lens subassembly, is then synthesized by described image
The first free curved surface prism amplification and the second free curved surface prism the eyes for being reflected into the observer, the external world
Scene is transmitted into the eyes of the observer through the synthesis face of the first free curved surface prism and the second free curved surface prism.
16. according to the method for claim 15, it is characterised in that：
At least one free form surface of second free curved surface prism be coated with part reflective semitransparent film and in the first free curved surface prism
At least one free form surface gluing forms the synthesis face.
17. a kind of computer readable storage medium, the meter of the computer-readable recording medium storage for performing the following operations
Calculation machine executable instruction：
Image information from processor is provided；
The image information from the processor is shown in display unit；
The light of the expression described image information from the display unit is received via image combining unit, the light is via described image
Combining unit is synthesized with extraneous scene and is watched for observer.
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| CN201710384262.6A CN108931850A (en) | 2017-05-26 | 2017-05-26 | A kind of wearable optical system, device and method |
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| CN201710384262.6A CN108931850A (en) | 2017-05-26 | 2017-05-26 | A kind of wearable optical system, device and method |
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| CN108931850A true CN108931850A (en) | 2018-12-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161680A (en) * | 2019-05-10 | 2019-08-23 | 北京理工大学 | A kind of holographical wave guide display device and its display methods |
| CN110286490A (en) * | 2019-07-09 | 2019-09-27 | 杭州历历信息科技有限公司 | Augmented reality optical system based on free form surface and optical waveguide |
| CN114488538A (en) * | 2022-02-28 | 2022-05-13 | 歌尔股份有限公司 | AR ray apparatus and head-mounted display device |
| CN117148540A (en) * | 2023-02-01 | 2023-12-01 | 荣耀终端有限公司 | Lens assembly, camera module and electronic equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034206A (en) * | 2006-03-09 | 2007-09-12 | 比亚迪股份有限公司 | Optical imaging system for helmet display |
| CN101900872A (en) * | 2010-07-27 | 2010-12-01 | 中国航空工业集团公司洛阳电光设备研究所 | Two-piece free-form surface head mounted display optical system |
| CN102402005A (en) * | 2011-12-06 | 2012-04-04 | 北京理工大学 | Bifocal-surface monocular stereo helmet-mounted display device with free-form surfaces |
| CN203433192U (en) * | 2013-07-18 | 2014-02-12 | 成都理想境界科技有限公司 | Head mounted display HMD |
| CN105629641A (en) * | 2014-10-29 | 2016-06-01 | 北京云豆科技有限公司 | Wearable projection display optical system |
| CN105629478A (en) * | 2016-04-01 | 2016-06-01 | 北京耐德佳显示技术有限公司 | Visual optical imaging device and binocular near-eye display by using the same |
| CN105652440A (en) * | 2014-11-14 | 2016-06-08 | 北京云豆科技有限公司 | HMD projection display optical system |
| CN207301489U (en) * | 2017-05-26 | 2018-05-01 | 上海真曦通信技术有限公司 | A kind of wearable optical system and device |
-
2017
- 2017-05-26 CN CN201710384262.6A patent/CN108931850A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034206A (en) * | 2006-03-09 | 2007-09-12 | 比亚迪股份有限公司 | Optical imaging system for helmet display |
| CN101900872A (en) * | 2010-07-27 | 2010-12-01 | 中国航空工业集团公司洛阳电光设备研究所 | Two-piece free-form surface head mounted display optical system |
| CN102402005A (en) * | 2011-12-06 | 2012-04-04 | 北京理工大学 | Bifocal-surface monocular stereo helmet-mounted display device with free-form surfaces |
| CN203433192U (en) * | 2013-07-18 | 2014-02-12 | 成都理想境界科技有限公司 | Head mounted display HMD |
| CN105629641A (en) * | 2014-10-29 | 2016-06-01 | 北京云豆科技有限公司 | Wearable projection display optical system |
| CN105652440A (en) * | 2014-11-14 | 2016-06-08 | 北京云豆科技有限公司 | HMD projection display optical system |
| CN105629478A (en) * | 2016-04-01 | 2016-06-01 | 北京耐德佳显示技术有限公司 | Visual optical imaging device and binocular near-eye display by using the same |
| CN207301489U (en) * | 2017-05-26 | 2018-05-01 | 上海真曦通信技术有限公司 | A kind of wearable optical system and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161680A (en) * | 2019-05-10 | 2019-08-23 | 北京理工大学 | A kind of holographical wave guide display device and its display methods |
| CN110286490A (en) * | 2019-07-09 | 2019-09-27 | 杭州历历信息科技有限公司 | Augmented reality optical system based on free form surface and optical waveguide |
| CN114488538A (en) * | 2022-02-28 | 2022-05-13 | 歌尔股份有限公司 | AR ray apparatus and head-mounted display device |
| CN114488538B (en) * | 2022-02-28 | 2024-02-09 | 歌尔光学科技有限公司 | AR ray apparatus and wear display device |
| CN117148540A (en) * | 2023-02-01 | 2023-12-01 | 荣耀终端有限公司 | Lens assembly, camera module and electronic equipment |
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