CN106610527A - Near eye display optical device - Google Patents
Near eye display optical device Download PDFInfo
- Publication number
- CN106610527A CN106610527A CN201710101889.6A CN201710101889A CN106610527A CN 106610527 A CN106610527 A CN 106610527A CN 201710101889 A CN201710101889 A CN 201710101889A CN 106610527 A CN106610527 A CN 106610527A
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- substrate
- light
- optical
- image
- collimation lens
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- 230000003287 optical effect Effects 0.000 title claims abstract description 46
- 239000000758 substrate Substances 0.000 claims description 33
- 239000013307 optical fiber Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims 2
- 239000006185 dispersion Substances 0.000 claims 1
- 230000003190 augmentative effect Effects 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000010287 polarization Effects 0.000 abstract description 2
- 239000002360 explosive Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000005252 bulbus oculi Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- 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
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a near eye display optical device, which relates to an optical display device for a computer device, and particularly relates to an imaging system applied to augmented reality (AR) and mixed reality (MR) devices and belongs to the optical field. In recent years, a head-mounted computer device presents explosive development. VR (virtual reality), AR and MR devices emerge in endlessly. In the head-mounted computer device, particularly, a head-mounted AR computer and a MR computer, either heavy and narrow-field angle polarization optical elements or expensive grating and optical waveguide elements are adopted. The above condition limits the development and popularization of the AR device and the MR device. The technical scheme of the invention aims at designing a light, thin, cheap, simple-manufacturing process and large-view field optical device.
Description
Technical field
The present invention relates to be used for the optical display means of computer equipment, specifically, being related to a kind of being applied to strengthens existing
The imaging system of reality and mixed reality equipment.
Background technology
In recent years, Wearing-on-head type computer equipment presents volatile development.VR（Virtual reality）、AR（Augmented reality）、
MR（Mixed reality）Equipment emerges in an endless stream.But in the middle of Wearing-on-head type computer equipment, particularly wear-type augmented reality is calculated
Machine and mixed reality computer, or employing is polarization optical element thick and heavy, that the angle of visual field is narrow and small, or being that cost is high
Grating, optical waveguide components.
This present situation limits the development and popularization of augmented reality equipment and mixed reality equipment.
Accordingly, it would be desirable to a kind of frivolous, cheap, manufacturing process is simply and with the Optical devices of the big angle of visual field.
The content of the invention
It is an object of the invention to provide a kind of Optical devices that can solve the problem that the problems referred to above.By using ad hoc structure
The Optical devices that collimation lens and optical base-substrate are constituted can provide the larger angle of visual field and cheap be easy to popularization.
According to an aspect of the present invention, a kind of embodiment is preferably provided.Including：Show image source, collimation lens, optics
Substrate, for filtering the part reflecting face of diverging light, for most at last image light to be coupled out the plane of reflection of optical base-substrate.
Preferably, the display image source is OLED display or liquid crystal display.
Preferably, when the collimation lens is dynamic lenses or the microlens array by electronic method control focal length
The diopter of observer's eyeball can preferably be adapted to.
Preferably, the microlens array is refractive microlens array or diffraction microlens array.
Preferably, the pixel cell of the microlens array is corresponded with the pixel cell for showing image source.
Preferably, the collimation lens can also be Fresnel Lenses.
Preferably, the distance between two parallel surfaces of the optical base-substrate are 2mm ~ 6mm.
Preferably, the optical base-substrate is plastic material or glass material.
Preferably, the input face 004a and 004b of the optical base-substrate is more than with the angle of the optical base-substrate parallel surface
30 ° are less than 75 °.
Preferably, the plane of reflection is less than 40 ° more than 25 ° with the angle of the parallel surface of the optical base-substrate.
Preferably, the input face and the angle of the optical base-substrate parallel surface are the plane of reflection and the optics base
2 times of the angle of piece parallel surface.
Preferably, the light transmittance of the plane of reflection is variable.
Preferably, the part reflecting face refractive index for filtering diverging light is approximately equal to 1（Such as the air gap）, and its
The angle of the section of upper any point and two parallel surfaces of the optical base-substrate by above-described embodiment conditional decision.I.e. by institute
State angle, the light of the angle of input face and the optical base-substrate parallel surface, the plane of reflection and the optical base-substrate parallel surface
The refractive index for learning substrate is together decided on.
It is described show image light that image source 001a and 001b provide respectively via after collimation lens 002a and 002b collimation
The input face 004a and 004b of optical base-substrate 003a and 003b is absorbed in optical base-substrate.In two parallel surface 003a of optical base-substrate
A respectively Jing internal reflections are transferred to the plane of reflection 006a and 006b and are ultimately incident upon sight for (), 003a (2) and 003b (1), 003b (2)
On the retina of the person of examining.
However, for by the image being spliced, if its seaming position is without Redundancy Design, observer is in eyeball
The image of tear is necessarily can be appreciated that during rotation, can also cause observer to see unnecessary edge while showing the diverging light of image source
Repeat image.In fact, the effect for filtering the part reflecting face of diverging light is this.The part reflecting face is deposited
Edge weight caused by observer neither can be appreciated that by display image source diverging light in rational range of observation can simultaneously ensured
Multiple image, and the diverging light for showing image source can be utilized to ensure that observer not can be appreciated that the figure of tear in rational range of observation
Picture.
It should be appreciated that aforementioned description substantially and follow-up description in detail are exemplary illustration and explanation, not to this
Invent the restriction of claimed content.
Description of the drawings
Accompanying drawing in the application together with embodiment given above and detailed description given below, for explaining this
Bright function and advantage.
Fig. 1 is the stereogram of embodiments of the invention.
Fig. 2 is side view of the embodiments of the invention using refractive microlens array.
Fig. 3 is side view of the embodiments of the invention using diffraction type microlens array.
Fig. 4 is side view of the embodiments of the invention using Fresnel Lenses.
It is described for filtering when Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are to adopt refractive microlens array in embodiments of the invention
The schematic diagram of the part reflecting face of diverging light.
Fig. 9 is the schematic diagram that image source is shown described in embodiments of the invention.
Figure 10 is the schematic diagram that image source is shown described in the claims in the present invention 2.
Figure 11 and Figure 12 are the design sketch in the embedded goggles of Optical devices of the present invention.
Specific embodiment
By reference to one exemplary embodiment, the purpose of the present invention and function and the side for realizing these purposes and function
Method will be illustrated.However, the present invention is not limited to one exemplary embodiment disclosed below；Can by multi-form come
It is realized.The essence of specification is only to aid in the detail of the various equivalent modifications Integrated Understanding present invention.
Fig. 1 shows a kind of setting of embodiment, that is, show the image light of image source respectively from the both sides up and down of eyeglass
In inciding optical base-substrate 003a and 003b.Longitudinal FOV now depends on the distance between two parallel surfaces of optical base-substrate,
That is the body thickness of optical base-substrate.And horizontal FOV is then determined by the size of display image source.Also, it is embedded in the Optical devices
When in goggles, the optic portion shape in addition to the Optical devices is unrestricted.And when extraneous ambient light is stronger, portion
The shading element 007 of point printing opacity then ensure that the display effect of image, when the light transmittance of shading element 007 is variable, image
And the combination of external environment condition can be more true.
Tri- side-lookings of Fig. 2, Fig. 3, Fig. 4 illustrate the physical location of various pieces in embodiment.In by side view it is aobvious
And the axially symmetric structure being clear to understands, only need to illustrate the principle of wherein side when the principle of the embodiment is discussed.
In order to discuss the face type for filtering the part reflecting face of diverging light, refractive lenticule battle array is adopted with Fig. 2
The embodiment of row is explained.It is flat with rectangular coordinate system place to study the reflecting surface to set up rectangular coordinate system as shown in Figure 5
The equation of curve 005af in the intersection in face, i.e. rectangular coordinate system.
As shown in fig. 6, if 005f is not present, the unavoidable meeting in rational viewing angle of observer is seen in image border
To a repetition image produced by image source diverging light.In order to avoid this situation, should be according to the principle design of total internal reflection
005af.That is the tangent line of any point A meets ODE with its radial direction angle α on curved section 005af.Wherein α is determined by the refractive index of the optical base-substrate for being adopted.（Refractive index is such as adopted for 1.49
PMMA materials, then now）.
In addition, the presence of curved surface 005a can cause unnecessary extraneous light to be observed, in order to solve such case,
The marginal position of optical base-substrate is provided for solve problem by the edge strip of shading.
In the case where curved surface 005a meets above-mentioned condition, for the viewing angle shown in Fig. 7, due to the one of now image source
Part diverging light is much smaller than the critical angle of total internal reflection in the incidence angle of curved surface 005a, and most of energy of diverging light can be passed through
Curved surface 005a is propagated.And perpendicular to parallel surface 003a（2）During observation, as shown in figure 8, the image that observed image source sends
The marginal existence a certain distance of light from image source 001a.
As shown in figure 9, due to there are two display image sources in this embodiment, scheme during observer's normal observation to meet
As the requirement that will not be torn, display image source should be under these conditions set to be multiplexed part image data.
For described embodiment, in the case where display resolution is less demanding, using optical fiber image transmission beam and single
Miniscope, and the final output end composition in optical fiber image transmission beam shows that image source is equally feasible, now two groups of optical fiber are passed
The input of video beam needs to combine.According to single miniature OLED display, directly input end face can be close to
OLED display surface is reducing the volume of optical system.Under this application mode, using the less display of length-width ratio simultaneously
Realize making the final length-width ratio for showing that image source acquisition is larger by being multiplexed part image data by software mode.And
In output end, in order to obtain the display image source of large-size, then the output end face point of the every optical fiber to optical fiber image transmission beam is needed
It is not glued or soldering, as shown in Figure 10.
As claimed in claim 10, the present invention can have in actual applications various flexible combinations.Can not only be suitable for
In wide-field application requirement, as shown in figure 11；Can be designed with being simplified according to applied environment, such as only in the visual field two of observer
Side display image, as shown in figure 12.
Claims (10)
1. a kind of Optical devices, including：
Display the image source 001a and 001b being made up of electronic console, for producing image light；
Collimation lens 002a and 002b, with display the image source 001a and 001b distance about the collimation lens is about
The focal length of 002a and 002b, for expanding and being coupled into optical base-substrate 003A and 003B by the image light of the display image source；Light
Learn substrate 003a and 003b, including two groups of parallel surface 003a (1), 003a (2) and 003b (1), 003b (2)；For the optics
Substrate 003a and 003b, including input face 004a and 004b, input face is less than with the angle of the parallel surface more than 30 °
75°；
For the optical base-substrate 003a and 003b, wherein also including：Partially transparent reflecting surface 005a and 005b, thereon arbitrarily
The section of any is met because the partial dispersion of described image light is filtered in internal reflection with the angle of the parallel surface of the optical base-substrate
The requirement of light；
For the optical base-substrate 003a and 003b, wherein also including：It is partially transparent to press from both sides with optical base-substrate parallel surface
The plane of reflection 006a and 006b of the angle more than 25 ° less than 40 °, for entering light will to be coupled via the collimation lens 002a and 002b
The image light in substrate is learned because plane of reflection 006a and 006b is conducted in internal reflection and is finally coupled out optical base-substrate while making optics
Ambient light outside substrate is passed through.
2. it is as claimed in claim 1 to show that image source 001a and 001b can also be defeated by the image light of the generation of electronic console
Enter to be ultimately imaged after optical fiber image transmission beam output end face in the every optical fiber by the optical fiber image transmission beam according to certain order, distance
It is fixed on angle and exists on the panel of certain distance with collimation lens described in claim 1.
3. collimation lens 002a and 002b as claimed in claim 1 is dynamic lenses.
4. collimation lens 002a and 002b as claimed in claim 1 is Fresnel Lenses.
5. collimation lens 002a and 002b as claimed in claim 1 is to show image source described in each lens unit and right 1
The one-to-one microlens array of each pixel.
6. collimation lens 002a and 002b as claimed in claim 5 is the microlens array that focal length is controlled by electronic method.
7. plane of reflection 006a and 006b as claimed in claim 1, its light transmittance is transformable.
8. can also include pressing close to the partial light permeability unit that substrate parallel surface 003a (1), 003b (2) surface are placed in claim 1
Part 007.
9. the light transmittance of partial light permeability element 007 as claimed in claim 8 is transformable.
10. the Optical devices as described in for right 1, show that image source, collimation lens and optical base-substrate both can be described such as right 1
Like that combination application can also single group application, such as only used as one group using 001a, 002a, 003a.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101889.6A CN106610527A (en) | 2017-02-24 | 2017-02-24 | Near eye display optical device |
| CN201710356520.XA CN106918916B (en) | 2017-02-24 | 2017-05-19 | A kind of nearly eye shows Optical devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710101889.6A CN106610527A (en) | 2017-02-24 | 2017-02-24 | Near eye display optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106610527A true CN106610527A (en) | 2017-05-03 |
Family
ID=58636985
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710101889.6A Withdrawn CN106610527A (en) | 2017-02-24 | 2017-02-24 | Near eye display optical device |
| CN201710356520.XA Active CN106918916B (en) | 2017-02-24 | 2017-05-19 | A kind of nearly eye shows Optical devices |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710356520.XA Active CN106918916B (en) | 2017-02-24 | 2017-05-19 | A kind of nearly eye shows Optical devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106610527A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219336A1 (en) * | 2017-06-02 | 2018-12-06 | 福州光流科技有限公司 | Imaging method for modular mr device |
| CN113917693A (en) * | 2021-09-29 | 2022-01-11 | 歌尔光学科技有限公司 | AR glasses |
| WO2022028301A1 (en) * | 2020-08-02 | 2022-02-10 | 关春东 | Near-eye display apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244459B (en) | 2018-03-09 | 2021-10-08 | 财团法人工业技术研究院 | Augmented reality device |
| TWI664438B (en) | 2018-03-09 | 2019-07-01 | Industrial Technology Research Institute | Augmented reality device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL157837A (en) * | 2003-09-10 | 2012-12-31 | Yaakov Amitai | Substrate-guided optical device particularly for three-dimensional displays |
| US10073201B2 (en) * | 2012-10-26 | 2018-09-11 | Qualcomm Incorporated | See through near-eye display |
| CN103823305B (en) * | 2014-03-06 | 2016-09-14 | 成都贝思达光电科技有限公司 | A kind of nearly eye display optical system based on curved microlens array |
| CN203965657U (en) * | 2014-07-23 | 2014-11-26 | 中视迪威激光显示技术有限公司 | Utilize the laser projection system of fibre optic image transmission |
-
2017
- 2017-02-24 CN CN201710101889.6A patent/CN106610527A/en not_active Withdrawn
- 2017-05-19 CN CN201710356520.XA patent/CN106918916B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018219336A1 (en) * | 2017-06-02 | 2018-12-06 | 福州光流科技有限公司 | Imaging method for modular mr device |
| US11709360B2 (en) | 2017-06-02 | 2023-07-25 | Holo Interactive Us, Inc. | Imaging method for modular mixed reality (MR) device |
| WO2022028301A1 (en) * | 2020-08-02 | 2022-02-10 | 关春东 | Near-eye display apparatus |
| CN113917693A (en) * | 2021-09-29 | 2022-01-11 | 歌尔光学科技有限公司 | AR glasses |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106918916A (en) | 2017-07-04 |
| CN106918916B (en) | 2018-02-13 |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170503 |
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| WW01 | Invention patent application withdrawn after publication |