CN107229118A - Wear-type visual device HMD waveguide optical systems - Google Patents
Wear-type visual device HMD waveguide optical systems Download PDFInfo
- Publication number
- CN107229118A CN107229118A CN201610168442.6A CN201610168442A CN107229118A CN 107229118 A CN107229118 A CN 107229118A CN 201610168442 A CN201610168442 A CN 201610168442A CN 107229118 A CN107229118 A CN 107229118A
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- Prior art keywords
- speculum
- light
- display
- optical systems
- waveguide optical
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- 230000003287 optical effect Effects 0.000 title claims abstract description 32
- 230000000007 visual effect Effects 0.000 title claims abstract description 6
- 230000011514 reflex Effects 0.000 claims abstract description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims 1
- 239000000470 constituent Substances 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000002310 reflectometry Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction 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
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of wear-type visual device HMD waveguide optical systems, including：Display, speculum, collimation lens；Wherein：Display is used to send light；The light that speculum is used to send display reflexes to collimation lens；Collimation lens is used to collimate the light that speculum reflects, and the light after collimation enters human eye.The HMD waveguide optical systems, which employ speculum, makes light path transfer, relative to the scheme of existing use guide technology, and structure is very simple, and small in volume can extend to commercial market well；And relative to the constituent prisms structure of half-reflection and half-transmission, optical efficiency has very big lifting, into the light energy increase of human eye, brightness increases, therefore for the requirement relative reduction of display brightness.
Description
Technical field
The present invention relates to wear-type visual device technical field, more particularly to HMD (Head Mount Display, wear-type
Visual device) waveguide optical system.
Background technology
With advances in technology and development, HMD increasingly paid close attention to by people.Reality can be made and virtual by HMD
Merged well in the world.Due to HMD volume and weight problem, HMD product is mainly used in military affairs, and civilian
Market does not have good market reaction.The problem of in order to solve volume and weight, many technologies employ guide technology, own
Light source component and all combinations of micro display element must compare closely, there was only the half of one block of glass or similar material before eyes
Transparent glasses lens, but very big optical system is still can be seen that on the side of eyeglass.
Such as Fig. 1 gives one of which solution, as shown in figure 1, the program employs the constituent prisms of half-reflection and half-transmission
Structure, the display chip 101 of use is LCOS (Liquid Crystal on Silicon, the attached silicon of liquid crystal).Light is from light source 102
On outgoing, the LCOS panel that display chip 101 is incided through triangular prism 103-1,103-2, by LCOS panel
Reflection, is incided on polarizing beam splitter 104, polarizing beam splitter 104 is reflected into light in square glass prism 105,
Then it is directly incident in through triangular prism 106-2 on the reflecting surface of polarizing beam splitter 107, in order to ensure penetrating for whole product
Property, the reflectivity of this reflecting surface will be less than 100%, if reflectivity is 50%, and the light for having 50% is directly reflected away, and is had
50% light continues to move ahead through triangular prism 106-1 to speculum 108, and speculum 108 is cambered, makes to incide on it
The light in face becomes directional light and reflected away, and again passes by the reflective surface of polarizing beam splitter 107, enters human eye 109,
The energy for entering human eye 109 only has 25%；Other 25% energy can through polarizing beam splitter 107 reflecting surface always before
OK, gone out from triangular prism 103-1.This structure is adapted to LCOS, and is not suitable for OLED (Organic Light-Emitting
Diode, Organic Light Emitting Diode) and AMLCD (Active Matrix Liquid Crystal Display, initiative matrix liquid crystal
Display).And the penetration scheme needs the higher display chip of brightness.
The content of the invention
The embodiment of the present invention provides a kind of HMD waveguide optical systems, to simplify HMD waveguide optical systems structure and carry
Optical efficiency is risen, the HMD waveguide optical systems include：
Display 101, speculum 102, collimation lens 103；Wherein：
Display 101 is used to send light；
The light that speculum 102 is used to send display 101 reflexes to collimation lens 103；
Collimation lens 103 is used to collimate the light that speculum 102 reflects, and the light after collimation enters human eye 104.
In one embodiment, display 101 uses Organic Light Emitting Diode OLED or liquid crystal display LCD.
In one embodiment, speculum 102 is obliquely installed relative to the light direction that display 101 is sent, and speculum 102
Angle β between the light direction sent with display 101 is in the range of 115 °~135 °.
In one embodiment, the reflecting surface of speculum 102 is formed by evaporation silver, aluminium or deielectric-coating.
In one embodiment, the reflecting surface of speculum 102 is formed by sticking reflector plate.
In one embodiment, collimation lens 103 is additionally operable to be amplified the light that speculum 102 reflects.
In one embodiment, the light direction that the curve form of collimation lens 103 is sent according to speculum 102 and display 101
Between angle β and collimation lens 103 optical parametric determine.
The HMD waveguide optical systems of the embodiment of the present invention include display 101, speculum 102, collimation lens 103；Its
In, display 101 is used to send light, and the light that speculum 102 is used to send display 101 reflexes to collimation lens 103,
Collimation lens 103 is used to collimate the light that speculum 102 reflects, and the light after collimation enters human eye；The HMD waveguides
Optical system, which employs speculum 102, makes light path transfer, relative to the scheme of existing use guide technology, and structure is very simple,
Small in volume, commercial market can be extended to well；And relative to the constituent prisms structure of half-reflection and half-transmission, optics
Efficiency has very big lifting, and into the light energy increase of human eye, brightness increase, therefore the requirement for the brightness of display 101 is relative
Reduction.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
The accompanying drawing used required in art description is briefly described, it should be apparent that, drawings in the following description are only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the constituent prisms structural representation of half-reflection and half-transmission in the prior art；
Fig. 2 is HMD waveguide optical system schematic diagrames in the embodiment of the present invention.
Embodiment
For the purpose, technical scheme and advantage of the embodiment of the present invention are more clearly understood, below in conjunction with the accompanying drawings to of the invention real
Example is applied to be described in further details.Here, the schematic description and description of the present invention is used to explain the present invention, but not
It is used as limitation of the invention.
The embodiment of the present invention devises the HMD waveguide optical systems of a non-penetrating type using total reflection principle, such as Fig. 2 institutes
Show, the HMD waveguide optical systems include：
Display 101, speculum 102, collimation lens 103；Wherein：
Display 101 is used to send light；
The light that speculum 102 is used to send display 101 reflexes to collimation lens 103；
Collimation lens 103 is used to collimate the light that speculum 102 reflects, and the light after collimation enters human eye 104.
When it is implemented, display 101 can for example use OLED or LCD (Liquid using the display from main light emission
Crystal Display, liquid crystal display), wherein LCD can use AMLCD.
When it is implemented, speculum 102 is obliquely installed relative to the light direction that display 101 is sent, light path is set to transfer with this.
Again as shown in figure 1, there is the folder in an angle β, embodiment between the light direction that speculum 102 and display 101 are sent
Angle beta can be in the range of 115 °~135 °.
When it is implemented, the reflecting surface of speculum 102 can utilize various ways form.For example, the reflection of speculum 102
Face can be formed by evaporation silver, aluminium or deielectric-coating.And for example, the reflecting surface of speculum 102 can be formed by sticking reflector plate,
Such as reflector plate is sticked outside speculum 102.
Because the HMD waveguide optical systems of the embodiment of the present invention use speculum 102 light path is transferred, whole product is used
The structure of non-penetrating type, thus speculum 102 reflecting surface reflectivity can than existing half-reflection and half-transmission constituent prisms structure
It is high, it might even be possible to reach 100%.Even if the reflectivity of the reflecting surface of speculum 102 is set to 50% (compared with half-reflection and half-transmission
Constituent prisms structure), enter constituent prisms structure of the light energy of human eye also than half-reflection and half-transmission big.Because relative to existing
There is the constituent prisms structure of half-reflection and half-transmission, the HMD waveguide optical system optical efficiencies of the embodiment of the present invention have very big lifting,
Into the light energy increase of human eye, brightness increase.
When it is implemented, collimation lens 103 to the light that speculum 102 reflects in addition to for collimating, it can be also used for pair
The light that speculum 102 reflects is amplified, the image for making human eye be able to observe that after amplification.
When it is implemented, the light side that the curve form of collimation lens 103 can be sent according to speculum 102 and display 101
The optical parametric of angle β and collimation lens 103 between are determined.General surface can be used in embodiment, also may be used
With using complicated free form surface.
In summary, the HMD waveguide optical systems of the embodiment of the present invention include display 101, speculum 102, collimation thoroughly
Mirror 103；Wherein, display 101 is used to send light, and the light that speculum 102 is used to send display 101 reflexes to standard
Straight lens 103, collimation lens 103 is used to collimate the light that speculum 102 reflects, and the light after collimation enters human eye；
The HMD waveguide optical systems, which employ speculum 102, makes light path transfer, relative to the scheme of existing use guide technology,
Structure is very simple, small in volume, and commercial market can be extended to well；And relative to the structure of half-reflection and half-transmission
Prism structure, optical efficiency has very big lifting, into the light energy increase of human eye, and brightness increases, therefore for display 101
The requirement relative reduction of brightness.
Particular embodiments described above, has been carried out further specifically to the purpose of the present invention, technical scheme and beneficial effect
It is bright, it should be understood that the specific embodiment that the foregoing is only the present invention, the protection being not intended to limit the present invention
Scope, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. should be included in
Within protection scope of the present invention.
Claims (7)
1. a kind of wear-type visual device HMD waveguide optical systems, it is characterised in that including：Display (101),
Speculum (102), collimation lens (103)；Wherein：
Display (101) is used to send light；
The light that speculum (102) is used to send display (101) reflexes to collimation lens (103)；
Collimation lens (103) is used to collimate the light that speculum (102) reflects, and the light after collimation enters human eye (104).
2. HMD waveguide optical systems as claimed in claim 1, it is characterised in that display (101) is using organic
Light emitting diode OLED or liquid crystal display LCD.
3. HMD waveguide optical systems as claimed in claim 1, it is characterised in that speculum (102) is relative to aobvious
Show that the light direction that device (101) is sent is obliquely installed, and the light direction that sends of speculum (102) and display (101) it
Between angle β in the range of 115 °~135 °.
4. HMD waveguide optical systems as claimed in claim 1, it is characterised in that the reflecting surface of speculum (102)
Formed by evaporation silver, aluminium or deielectric-coating.
5. HMD waveguide optical systems as claimed in claim 1, it is characterised in that the reflecting surface of speculum (102)
Formed by sticking reflector plate.
6. HMD waveguide optical systems as claimed in claim 1, it is characterised in that collimation lens (103) is additionally operable to
The light that speculum (102) reflects is amplified.
7. the HMD waveguide optical systems as described in any one of claim 1 to 6, it is characterised in that collimation lens (103)
The light direction that is sent according to speculum (102) and display (101) of curve form between angle β and collimation it is saturating
The optical parametric of mirror (103) is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168442.6A CN107229118A (en) | 2016-03-23 | 2016-03-23 | Wear-type visual device HMD waveguide optical systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168442.6A CN107229118A (en) | 2016-03-23 | 2016-03-23 | Wear-type visual device HMD waveguide optical systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107229118A true CN107229118A (en) | 2017-10-03 |
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ID=59932910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610168442.6A Pending CN107229118A (en) | 2016-03-23 | 2016-03-23 | Wear-type visual device HMD waveguide optical systems |
Country Status (1)
| Country | Link |
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| CN (1) | CN107229118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936911A (en) * | 2018-03-28 | 2020-11-13 | 迪斯帕列斯有限公司 | Waveguide display element with reflective surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047091A1 (en) * | 2005-03-22 | 2007-03-01 | The Microoptical Corporaiton | Optical system using total internal reflection images |
| US20130242392A1 (en) * | 2012-03-15 | 2013-09-19 | Google Inc. | Near-to-eye display with diffractive lens |
| US20140293434A1 (en) * | 2011-12-06 | 2014-10-02 | Beijing Institute Of Technology | Display apparatus and system and display method thereof |
| CN104536140A (en) * | 2015-01-24 | 2015-04-22 | 上海理湃光晶技术有限公司 | Folding extension display optical device based on prism coupling |
-
2016
- 2016-03-23 CN CN201610168442.6A patent/CN107229118A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070047091A1 (en) * | 2005-03-22 | 2007-03-01 | The Microoptical Corporaiton | Optical system using total internal reflection images |
| US20140293434A1 (en) * | 2011-12-06 | 2014-10-02 | Beijing Institute Of Technology | Display apparatus and system and display method thereof |
| US20130242392A1 (en) * | 2012-03-15 | 2013-09-19 | Google Inc. | Near-to-eye display with diffractive lens |
| CN104536140A (en) * | 2015-01-24 | 2015-04-22 | 上海理湃光晶技术有限公司 | Folding extension display optical device based on prism coupling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936911A (en) * | 2018-03-28 | 2020-11-13 | 迪斯帕列斯有限公司 | Waveguide display element with reflective surface |
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Application publication date: 20171003 |