CN108333773A - AR head-mounted display apparatus - Google Patents
AR head-mounted display apparatus Download PDFInfo
- Publication number
- CN108333773A CN108333773A CN201810329622.7A CN201810329622A CN108333773A CN 108333773 A CN108333773 A CN 108333773A CN 201810329622 A CN201810329622 A CN 201810329622A CN 108333773 A CN108333773 A CN 108333773A
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- Prior art keywords
- display screen
- wave plate
- concave mirror
- splitting prism
- quarter wave
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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
- G02B27/0172—Head mounted characterised by optical features
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to augmented reality fields.The AR head-mounted display apparatus provided, including send out display screen, polarization splitting prism, quarter wave plate, concave mirror, liquid crystal light valve, light sensor and the controller of P polarization light；Display screen, polarization splitting prism, quarter wave plate and concave mirror are set gradually from top to bottom；Display screen is parallel to each other with quarter wave plate；Liquid crystal light valve is located at display screen, the left side of polarization splitting prism and quarter wave plate and vertical with display screen；Angle between polarization splitting prism and display screen is θ；Display screen is less than the focal length of concave mirror at a distance from concave mirror；Display screen, liquid crystal light valve and light sensor are electrically connected with the controller respectively.AR head-mounted display apparatus provided by the invention can adjust extraneous outdoor scene and enter the brightness of human eye to realize that Auto-matching adjusts brightness and brightness of display screen that ambient enters human eye；Has the advantages that simple in structure, easy to process, assembly simultaneously.
Description
Technical field
The present invention relates to augmented reality fields, and in particular to AR head-mounted display apparatus.
Background technology
Augmented reality (Augmented Reality, hereinafter referred to as AR), it can be understood as, will by computer technology
To real world, true environment and virtual object have been added to the same picture or space virtual Information application in real time
It exists simultaneously.
Mainly having AR glasses and the AR helmets using the consumer product of AR technologies at present, (hereinafter referred to as AR wear-types, which are shown, sets
It is standby), user wear using AR head-mounted display apparatus when, can see while seeing extraneous outdoor scene in extraneous outdoor scene by
The virtual scene of AR head-mounted display apparatus superposition.As a result, user it is seen that two aspect scenes light：Extraneous outdoor scene with
Empty scape；To make that after extraneous outdoor scene and the superposition of empty scape due effect can be reached, the brightness matching of extraneous outdoor scene and empty scape is needed,
The brightness of empty scape can be adjusted by AR head-mounted display apparatus, and for the brightness of extraneous outdoor scene, due to being environment mostly
Brightness, so will be difficult to adjust.
Invention content
The purpose of the present invention is to provide can adjust brightness and the display screen that ambient enters human eye with Auto-matching
The AR head-mounted display apparatus of brightness.
AR head-mounted display apparatus, including send out the display screen of P polarization light, polarization splitting prism, quarter wave plate, concave mirror,
Liquid crystal light valve, light sensor and controller；
The display screen, the polarization splitting prism, the quarter wave plate and the concave mirror are set successively from top to bottom
It sets；
The display screen and the quarter wave plate are parallel to each other；
The liquid crystal light valve be located at the display screen, the polarization splitting prism and the quarter wave plate the left side and with
The display screen is vertical；
Angle between the polarization splitting prism and the display screen is θ；
The display screen is less than the focal length of the concave mirror at a distance from the concave mirror；
The display screen, the liquid crystal light valve and the light sensor are electrically connected with the controller respectively.
AR head-mounted display apparatus provided by the invention can adjust extraneous outdoor scene and enter the brightness of human eye to realize certainly
Dynamic matching adjusts brightness and brightness of display screen that ambient enters human eye；There is simple in structure, easy to process, assembly simultaneously
The advantages of.
Description of the drawings
Fig. 1 is the principle schematic diagram of AR head-mounted display apparatus provided in an embodiment of the present invention；
Fig. 2 is the circuit theory schematic diagram of AR head-mounted display apparatus provided in an embodiment of the present invention.
Specific implementation mode
Below in conjunction with drawings and the specific embodiments, the invention will be further described.
Referring to Fig.1, Fig. 2.
AR head-mounted display apparatus provided in this embodiment, including the display screen 1 of P polarization light, polarization splitting prism 2,1/4
Wave plate 3, concave mirror 4, liquid crystal light valve 5, light sensor 6 and controller 8；
Display screen 1, polarization splitting prism 2, quarter wave plate 3 and concave mirror 4 are set gradually from top to bottom；
Display screen 1 and quarter wave plate 3 are parallel to each other；
Liquid crystal light valve 5 is located at display screen 1, the left side of polarization splitting prism 2 and quarter wave plate 3 and vertical with display screen 1；
Polarization splitting prism 2 is in 45 ° of angles with display screen 1；
Display screen 1 is less than the focal length of concave mirror 4 at a distance from concave mirror 4；
Display screen 1, liquid crystal light valve 5 and light sensor 6 are electrically connected with controller 8 respectively.
The operation principle of AR head-mounted display apparatus provided in this embodiment is described further below：
The P polarization light a1 that the image shown on display screen 1 is sent out is incident on polarization splitting prism 2, according to polarization spectro
The characteristic of prism, P polarization light a1 is by whole transmissions；P polarization light a2 after transmission becomes elliptical polarisations after penetrating quarter wave plate 3
Light a3；Since display screen 1 is less than the focal length of concave mirror 4 at a distance from concave mirror 4, so elliptical polarisation light a3 is incident on concave surface
The virtual image that transmitting forms upright amplification is carried out after mirror 4；Virtual image light a4 becomes S-polarization light a5 after being again passed through quarter wave plate 3；
S-polarization light a5 is again incident on polarization splitting prism 2, and according to the characteristic of polarization splitting prism, S-polarization light a5 is by whole reflections, S
S-polarization light a6 after polarised light a5 reflections is incident to human eye 7.The image for the display screen 1 that old friend's eye 7 is seen is upright, amplification
The virtual image.
Ambient b1 becomes light b2 after liquid crystal light valve 5 and is incident on polarization splitting prism 2, according to polarization splitting prism
Characteristic, S-polarization light in light b2 by reflection and all transmissions are formed light b3 and are incident to human eye by P polarization light.Old friend's eye 7
The extraneous outdoor scene seen such as is at the big real image.
More than, when using the AR head-mounted display apparatus, the scene that human eye 7 is seen is upright, the amplification of display screen 1
The virtual image be superimposed upon extraneous outdoor scene etc. on big real image.
It is polarised light b2, the polarization direction of polarised light b2 and S that ambient b1, which penetrates the light b2 become after liquid crystal light valve 5,
Direction is at the angles Q；Meanwhile light sensor 15 detects the brightness of external environment in real time, light sensor 15 will detect extraneous ring
The brightness transition in border is that luminance signal is transmitted to controller 8, and controller 8 can export certain frequency according to preset program
Pulse square wave is applied on liquid crystal light valve 5, to control the angle of polarization Q of liquid crystal light valve 5, by the polarization for controlling liquid crystal light valve 5
Angle Q is to control the transmissivity of liquid crystal light valve 5, extraneous real to adjust to control the brightness that ambient b1 enters human eye
Scape enters the brightness of human eye 7 to realize that Auto-matching adjusts 1 brightness of brightness and display screen that ambient enters human eye 7.
Further, the angle of angle theta is Brewster angle.
Further, light sensor 6 is generally aligned in the same plane with liquid crystal light valve 5.
From the foregoing, it will be observed that AR head-mounted display apparatus provided in this embodiment is with simple in structure, easy to process, assembly excellent
Point.
It is that the present invention illustrates above.
Claims (3)
1.AR head-mounted display apparatus, which is characterized in that including send out the display screen (1) of P polarization light, polarization splitting prism (2),
Quarter wave plate (3), concave mirror (4), liquid crystal light valve (5), light sensor (6) and controller (7)；
The display screen (1), the polarization splitting prism (2), the quarter wave plate (3) and the concave mirror (4) are from top to bottom
It sets gradually；
The display screen (1) and the quarter wave plate (3) are parallel to each other；
The liquid crystal light valve (5) is located at the display screen (1), the polarization splitting prism (2) and the quarter wave plate (3)
The left side and vertical with the display screen (1)；
Angle between the polarization splitting prism (2) and the display screen (1) is θ；
The display screen (1) is less than the focal length of the concave mirror (4) at a distance from the concave mirror (4)；
The display screen (1), the liquid crystal light valve (5) and the light sensor (6) are electrically connected with the controller (7) respectively
It connects.
2. AR head-mounted display apparatus as described in claim 1, which is characterized in that the angle of the angle theta is Brewster
Angle.
3. AR head-mounted display apparatus as described in claim 1, which is characterized in that the light sensor (6) and the liquid
Brilliant light valve (5) is generally aligned in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329622.7A CN108333773A (en) | 2018-04-13 | 2018-04-13 | AR head-mounted display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329622.7A CN108333773A (en) | 2018-04-13 | 2018-04-13 | AR head-mounted display apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108333773A true CN108333773A (en) | 2018-07-27 |
Family
ID=62933109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810329622.7A Pending CN108333773A (en) | 2018-04-13 | 2018-04-13 | AR head-mounted display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108333773A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557695A (en) * | 2019-01-17 | 2019-04-02 | 成都晶砂科技有限公司 | A kind of device, display device and brightness adjusting method adjusting display light source brightness |
| CN110221439A (en) * | 2019-07-11 | 2019-09-10 | Oppo广东移动通信有限公司 | Augmented reality equipment and augmented reality adjusting method |
| CN110673340A (en) * | 2019-09-24 | 2020-01-10 | 歌尔科技有限公司 | Augmented reality device and control method thereof |
| CN110879473A (en) * | 2019-11-27 | 2020-03-13 | 歌尔股份有限公司 | Projection lens assembly and head-mounted display device |
| CN110927979A (en) * | 2019-12-17 | 2020-03-27 | 程楷琳 | Digital screen projection remote amplification reading system |
| CN112130330A (en) * | 2020-10-28 | 2020-12-25 | 南京爱奇艺智能科技有限公司 | Bifocal and multifocal flat display system and VR or AR equipment using same |
| CN112213860A (en) * | 2020-11-17 | 2021-01-12 | 闪耀现实(无锡)科技有限公司 | Augmented reality device, wearable augmented reality equipment and method for controlling augmented reality device |
| CN114647086A (en) * | 2022-03-01 | 2022-06-21 | 北京释限创新科技有限公司 | AR display device |
| CN116661154A (en) * | 2023-06-16 | 2023-08-29 | 宁波鸿蚁光电科技有限公司 | Optical system with multiple folding optical paths and head-mounted display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11237584A (en) * | 1997-12-19 | 1999-08-31 | Sharp Corp | Picture display device, head-mount type display using the picture display device, and video communication equipment |
| US20050140644A1 (en) * | 2002-04-25 | 2005-06-30 | Hiroshi Mukawa | Image display unit |
| CN102809821A (en) * | 2011-06-01 | 2012-12-05 | 索尼公司 | Display apparatus |
| US20150070773A1 (en) * | 2013-09-11 | 2015-03-12 | Industrial Technology Research Institute | Virtual image display apparatus |
| CN107065189A (en) * | 2017-04-28 | 2017-08-18 | 歌尔科技有限公司 | A kind of optics module and augmented reality glasses |
-
2018
- 2018-04-13 CN CN201810329622.7A patent/CN108333773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11237584A (en) * | 1997-12-19 | 1999-08-31 | Sharp Corp | Picture display device, head-mount type display using the picture display device, and video communication equipment |
| US20050140644A1 (en) * | 2002-04-25 | 2005-06-30 | Hiroshi Mukawa | Image display unit |
| CN102809821A (en) * | 2011-06-01 | 2012-12-05 | 索尼公司 | Display apparatus |
| US20150070773A1 (en) * | 2013-09-11 | 2015-03-12 | Industrial Technology Research Institute | Virtual image display apparatus |
| CN107065189A (en) * | 2017-04-28 | 2017-08-18 | 歌尔科技有限公司 | A kind of optics module and augmented reality glasses |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557695A (en) * | 2019-01-17 | 2019-04-02 | 成都晶砂科技有限公司 | A kind of device, display device and brightness adjusting method adjusting display light source brightness |
| CN110221439A (en) * | 2019-07-11 | 2019-09-10 | Oppo广东移动通信有限公司 | Augmented reality equipment and augmented reality adjusting method |
| CN110673340A (en) * | 2019-09-24 | 2020-01-10 | 歌尔科技有限公司 | Augmented reality device and control method thereof |
| CN110879473A (en) * | 2019-11-27 | 2020-03-13 | 歌尔股份有限公司 | Projection lens assembly and head-mounted display device |
| CN110879473B (en) * | 2019-11-27 | 2021-11-30 | 歌尔光学科技有限公司 | Projection lens assembly and head-mounted display device |
| CN110927979A (en) * | 2019-12-17 | 2020-03-27 | 程楷琳 | Digital screen projection remote amplification reading system |
| CN112130330A (en) * | 2020-10-28 | 2020-12-25 | 南京爱奇艺智能科技有限公司 | Bifocal and multifocal flat display system and VR or AR equipment using same |
| CN112213860A (en) * | 2020-11-17 | 2021-01-12 | 闪耀现实(无锡)科技有限公司 | Augmented reality device, wearable augmented reality equipment and method for controlling augmented reality device |
| CN114647086A (en) * | 2022-03-01 | 2022-06-21 | 北京释限创新科技有限公司 | AR display device |
| CN116661154A (en) * | 2023-06-16 | 2023-08-29 | 宁波鸿蚁光电科技有限公司 | Optical system with multiple folding optical paths and head-mounted display device |
| CN116661154B (en) * | 2023-06-16 | 2023-11-10 | 宁波鸿蚁光电科技有限公司 | Optical system with multiple folding optical paths and head-mounted display device |
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Application publication date: 20180727 |
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