CN105929537A - Head-mounted display and eyepiece system thereof - Google Patents
Head-mounted display and eyepiece system thereof Download PDFInfo
- Publication number
- CN105929537A CN105929537A CN201610218360.8A CN201610218360A CN105929537A CN 105929537 A CN105929537 A CN 105929537A CN 201610218360 A CN201610218360 A CN 201610218360A CN 105929537 A CN105929537 A CN 105929537A
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- Prior art keywords
- lens
- eyepiece
- eyepiece system
- depth
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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
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
-
- 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
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
Abstract
The invention discloses an eyepiece system of a head-mounted display. The eyepiece system includes fast electro-zoom lenses or a lens group, a display screen device, an eyepiece electro-zoom control device and a processor; according to the eyepiece system, the fast electro-zoom lenses or the lens group is sequentially distributed from the display screen device side to the human eye observation side; the eyepiece electro-zoom control device controls the fast electro-zoom lenses or the lens group to obtain a plurality of images corresponding to different depth of field at different time points in a set period; and the processor stores or simulates the generated depth-of-field images. According to the eyepiece system of the invention, the eyepiece electro-zoom control device controls the eyepieces to display the virtual depth-of-field images in a temporal sequentially manner, so that the virtual images observed by eyes can be similar to a real scene; focusing is carried out actively, so that the depth of field of the images can be sensed; such kind of eye focusing action accords with physiological characteristics of a person in observing a real object, and therefore, the fatigue of the eyes of the person can be relieved, and thus, a situation of high possibility of producing fatigue caused by observing virtual images can be improved.
Description
Technical field
The present invention relates to field, Light Electrical, particularly relate to a kind of head mounted display and eyepiece thereof
System.
Background technology
Along with augmented reality, to be increasingly becoming technology popular, various virtual realities, augmented reality can
Wearable device is as springing up like mushrooms.During using these wearable devices, by
Display mode in many equipment is that 3D eyepiece based on principle of parallax shows, human eye is watched
The virtual image depth of field is in passive focus state, is easily caused people eyestrain.Therefore, how to change
Kind virtual image easily makes human eye produce tired situation, is current problem demanding prompt solution.
Summary of the invention
It is an object of the invention to provide a kind of head mounted display and eyepiece system, wherein eyepiece system
Including: fast electric mutagens focus lens or battery of lens, display device, the electroluminescent Zoom control of eyepiece
Device and processor；
The electroluminescent zooming control device of described eyepiece controls described electroluminescent zoom lens or battery of lens in advance
If timesharing forms the depth of field picture of some width correspondence different distance in the time；
The storage of described processor or simulation generate depth of field picture.
Preferably, described battery of lens includes: be arranged in order to human eye side from described display device
Planoconvex lens, the first planoconcave lens, the second planoconcave lens, 1/4th thin-film wave plates, double
Convex lens, reflecting polarizer, linear polarizer and plano-convex zoom lens；Wherein said first plano-concave
The concave surface of lens is half-reflection and half-transmission face.
Preferably, in described Preset Time, timesharing forms the depth of field picture of some width correspondence different distance
Mask body is: in 41.666 milliseconds, timesharing forms the depth of field picture of 5 width correspondence different distance.
Preferably, described fast electric mutagens focus lens or eyepiece group comprise glass lens.
Preferably, described display device is OLED (Organic Light Emitting Diode) display screen.
Preferably, described eyepiece system also includes: polarization half-reflecting half mirror.
Preferably, described polarization half-reflecting half mirror, is 45 degree with primary optical axis.
A kind of head mounted display, including the eyepiece system described in foregoing.
Therefore, there is advantages that
The electroluminescent zooming control device of eyepiece of the present invention controls fast electric mutagens focus lens or lens
Group sequential shows virtual depth image, makes us similar with real scene during eye fixation, actively enters
Row focusing, the scene depth of perceptual image.It is true that such human eye focus actuation meets human eye observation
The physiological feature of real object, it is no longer necessary to passively focus, the natural remission feeling of fatigue of human eye,
Thus improve virtual image and easily make human eye produce tired situation.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is some embodiments of the present invention, common for this area
From the point of view of technical staff, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
The eyepiece system composition frame chart that Fig. 1 provides for the present invention；
Fig. 2 is the principle schematic of the present invention；
Lens group structure schematic diagram in the eyepiece system example that Fig. 3 provides for the present invention；
The light path schematic diagram of the eyepiece system example that Fig. 4 provides for the present invention；
The vertical axial aberration curve chart of the eyepiece system example that Fig. 5 provides for the present invention；
The distortion curve figure of the eyepiece system example that Fig. 6 provides for the present invention；
The ratio chromatism, curve chart of the eyepiece system example that Fig. 7 provides for the present invention；
MTF (modulation transfer function (MTF)) curve of the eyepiece system example that Fig. 8 provides for the present invention
Figure.
Detailed description of the invention
The core of the present invention is to provide a kind of head mounted display and eyepiece system thereof.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings
The present invention is described in further detail with detailed description of the invention.
Elaborate detail in the following description so that fully understanding the present invention.But this
Bright can be different from alternate manner described here implement with multiple, those skilled in the art can
To do similar popularization in the case of intension of the present invention.Therefore the present invention is not by following public affairs
The restriction being embodied as opened.
In a kind of eyepiece system that the present invention provides, see Fig. 1, including herein below:
Fast electric mutagens focus lens or battery of lens 1, display device 2, eyepiece electroluminescent zoom control
Device 3 processed and processor 4.
Concrete, see Fig. 2, t1 electroluminescent zooming control device of moment eyepiece and control the most electroluminescent
Zoom lens or battery of lens 11 become clear image planes at the nearly eye of S1；T1 moment and subsequent time t2
Between period, the electroluminescent zooming control device of eyepiece 31 controls fast electric mutagens focus lens or battery of lens
11 timesharing form the depth of field picture of some width correspondence different distance；S1 to S2 image planes distance is people
To infinity at the eye 50 nearly eyes of the distance of distinct vision.Certainly, between the above-mentioned period, depth of field picture
The visual depth perception of width number eyes to be met, accordingly, the refreshing frequency of display device 21
It is also required to reach the requirement of smooth playing.Certainly, the refreshing frequency of display device is the highest,
The speed of the formation depth of field picture of electroluminescent zoom lens or battery of lens is the fastest, it is possible to when unit
The more depth of field picture of interior display.Described processor 41 stores or simulates generation depth of field picture.
Concrete, described processor 41 can store the depth of field picture from photographic head shooting, it is also possible to
Generate simulation depth of field picture, to be suitable for different applications.Concrete, when in the present invention
When eyepiece system is applied to VR (virtual reality technology) field, processor generates a kind of analog loop
Border, makes user be immersed in this environment.
In the present invention, processor comprises memorizer, generates depth of field picture for storage or simulation.
The electroluminescent zooming control device of eyepiece of the present invention controls fast electric mutagens focus lens or lens
Group sequential shows virtual depth image, makes us similar with real scene during eye fixation, actively enters
Row focusing, the scene depth of perceptual image.It is true that such human eye focus actuation meets human eye observation
The physiological feature of real object, it is no longer necessary to passively focus, the natural remission feeling of fatigue of human eye,
Thus improve virtual image and easily make human eye produce tired situation.
In a kind of eyepiece system that the present invention provides, specifically include herein below:
The electroluminescent zooming control device of battery of lens, display device, eyepiece and processor.
The most described battery of lens is depended on to human eye 51 observation side by from display device 22 side
Planoconvex lens the 111, first planoconcave lens 112, second planoconcave lens 113, four points of secondary arrangement
One of thin-film wave plate 114, biconvex lens 115, reflecting polarizer 116, linear polarizer 117 and
Plano-convex zoom lens 118, wherein the concave surface of the first planoconcave lens 112 is half-reflection and half-transmission face.
The most concrete battery of lens index path: using display device 23 image source as light
Starting point pursued and attacked by line, if a branch of right-hand circular polarization light transmission planoconvex lens 121 that each picture point sends,
Again through the half-reflection and half-transmission face of the first planoconcave lens 122 to its concave surface.Wherein a half transmitting light is saturating
Cross half-reflection and half-transmission face and the second planoconcave lens 123, then through 1/4th thin-film wave plates 124, this
Time rotatory polarization change into vertical line polarisation and continue to arrive reflecting polarizer through biconvex lens 125
126.Reflecting polarizer 126 is in horizontal polarisation reflective condition, so through biconvex lens 125
Vertical line polarisation reflected by reflecting polarizer 126, second time through biconvex lens 125,
Again through 1/4th thin-film wave plates 124, change into left-handed rotatory polarization through the second planoconcave lens
During the half-reflection and half-transmission face of the 123 to the first planoconcave lens 122 concave surface, another half reflection luminous reflectance returns
Come, after third time is through the second planoconcave lens 123 and 1/4th thin-film wave plates 124, be converted into
Horizontal line polarisation, through biconvex lens 125, reflective polarizer 126 and linear polarizer 127 with
And plano-convex zoom lens 128 are to human eye entrance pupil diaphragm 53.
The electroluminescent zooming control device of described eyepiece controls described battery of lens timesharing shape in Preset Time
Become the depth of field picture of some width correspondence different distance.Concrete, described battery of lens is 41.666
In millisecond, timesharing forms the depth of field picture of 5 width correspondence different distance.
Under a concrete use scene, the refreshing frequency of described display device is 120Hz.
One object lesson of the eyepiece system sequential display depth of field is: t1 moment, fast electric mutagens
Focus lens becomes clear image planes at the nearly eyespot of S1.In the t2 moment, fast electric mutagens focus lens sequential is divided
Section controls eyepiece and becomes clear image planes to S2 infinite point；S1 to S2 image planes distance is in human eye photopic vision
To infinity at nearly eye, t1 to t2 period correspondence S1 to S2 distance image planes.Such as t1 extremely
Point 5 sequential pictures between t2, each display stops such as 8.333 milliseconds, completes a width depth of field and shows
Show that frame per second is 5 depth of field picture/41.666 millisecond.In general, 5 depth of field pictures meet eye
The visual depth perception of eyeball.Certainly, fast electric mutagens focus lens and the refresh rate of display device
The most just can show more faster depth of field picture.The smooth playing of general video pictures need to reach
To 24 frames/second, native system video pictures play frame rate is 1000 milliseconds/41.666 milliseconds=24,
I.e. can reach the smooth playing of 24 frames/second video pictures.Total frame per second is the video pictures 24*5 depth of field
Pictures/second that is 120 frame pictures/second, is the display device of 120Hz corresponding to refresh rate.Described place
Reason device storage or simulation generate described depth of field picture.
In the eyepiece system that the present invention provides, this embodiment includes herein below:
Fast electric mutagens focus lens or battery of lens, OLED display screen, eyepiece electroluminescent Zoom control dress
Put and processor.That is, in this example it is shown that device is OLED display screen.
In other examples, display device can also is that LCOS (liquid crystal polysilicon) shows
Display screen.Concrete, display device is not limited to OLED display screen or LCOS display screen, this
Bright do not do concrete display screen kind at this and limit.
The electroluminescent zooming control device of described eyepiece controls described fast electric mutagens focus lens or lens
Group timesharing in Preset Time forms the different distance depth of field picture that some width are corresponding.OLED shows
The refreshing frequency of screen, therefore can be with smooth playing depth of field picture not less than 120Hz.
In an embodiment, the material of described eyepiece system includes glass lens.
When eyepiece system have employed glass lens, its Entry pupil diameters 7 millimeters, 40 degree, visual field,
Hang down axial aberration curve chart, distortion curve figure, ratio chromatism, curve chart, MTF curve figure the most such as
Shown in Fig. 5-Fig. 8.Meanwhile, when using glass lens, 1000 degree of diopter adjustments can be realized,
And be suitable to replicate to reduce cost in high volume.
Certainly, eyepiece system can also use liquid crystal lens, liquid lens, polymer lens or
The lens that other similar principles can quickly be focused, the present invention does not limit at this.
In an embodiment, described eyepiece also includes increasing a piece of polarization half-reflecting half mirror.Certainly,
In other specific embodiments, it is possible to use common half-reflecting half mirror.Concrete at one
Under scene, described polarization half-reflecting half mirror and primary optical axis are 45 degree.Certainly, use due to difference
The concrete head dummy feature of person is different, can be finely adjusted polarization half-reflecting half mirror.The present invention carries
The present embodiment of confession, owing to adding polarization half-reflecting half mirror, can be applicable to AR field.
There is provided in the present embodiment is concrete citing with the scheme that primary optical axis is 45 degree, real
When border uses, proper angle can be adjusted.
The present invention also provides for a kind of head mounted display, including above-mentioned disclosed eyepiece system,
The explanation of its concrete principle sees above-mentioned specific embodiment, and here is omitted.
It should be noted that in this article, the relational terms of such as first and second or the like is only
Only it is used for separating an entity or operation with another entity or operating space, and not necessarily
Require or imply and there is the relation of any this reality or suitable between these entities or operation
Sequence.
Above head mounted display provided by the present invention and eyepiece system thereof are carried out in detail
Introduce.Principle and the embodiment of the present invention are set forth by specific case used herein,
The explanation of above example is only intended to help to understand principle and the core concept thereof of the present invention.Should
When pointing out, for those skilled in the art, without departing from the principle of the invention
On the premise of, it is also possible to the present invention is carried out some improvement and modification, and these improve and modify also
Fall in the protection domain of the claims in the present invention.
Claims (8)
1. an eyepiece system, it is characterised in that including: fast electric mutagens focus lens or battery of lens,
The electroluminescent zooming control device of display device, eyepiece and processor；
The electroluminescent zooming control device of described eyepiece controls described fast electric mutagens focus lens or battery of lens
In Preset Time, timesharing forms the depth of field picture of some width correspondence different distance；
The storage of described processor or simulation generate depth of field picture.
Eyepiece system the most according to claim 1, it is characterised in that described battery of lens includes:
The planoconvex lens that is arranged in order to human eye side from described display device, the first planoconcave lens,
Two planoconcave lenses, 1/4th thin-film wave plates, biconvex lens, reflecting polarizer, linear polarizer
With plano-convex zoom lens；The concave surface of wherein said first planoconcave lens is half-reflection and half-transmission face.
Eyepiece system the most according to claim 1, it is characterised in that divide in described Preset Time
Time form the depth of field picture of some width correspondence different distance particularly as follows: timesharing shape in 41.666 milliseconds
Become the depth of field picture of 5 width correspondence different distance.
Eyepiece system the most according to claim 2, it is characterised in that described fast electric mutagens is burnt
Lens or battery of lens comprise glass lens.
Eyepiece system the most according to claim 3, it is characterised in that described display device is
OLED (Organic Light Emitting Diode) display screen.
Eyepiece system the most according to claim 1, it is characterised in that described eyepiece system also wraps
Include: polarization half-reflecting half mirror.
Eyepiece system the most according to claim 6, it is characterised in that described polarization half-reflection and half-transmission
Mirror, is 45 degree with primary optical axis.
8. a head mounted display, it is characterised in that include claim 1 to 7 any one institute
The eyepiece system stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610218360.8A CN105929537A (en) | 2016-04-08 | 2016-04-08 | Head-mounted display and eyepiece system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610218360.8A CN105929537A (en) | 2016-04-08 | 2016-04-08 | Head-mounted display and eyepiece system thereof |
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Family
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| CN201610218360.8A Pending CN105929537A (en) | 2016-04-08 | 2016-04-08 | Head-mounted display and eyepiece system thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728319A (en) * | 2017-10-18 | 2018-02-23 | 广东虚拟现实科技有限公司 | Vision display system and method, and head-wearing display device |
| CN108241212A (en) * | 2016-12-26 | 2018-07-03 | 乐金显示有限公司 | Head-mounted display apparatus |
| WO2018163035A1 (en) * | 2017-03-08 | 2018-09-13 | 3M Innovative Properties Company | Optical system |
| CN108989787A (en) * | 2018-07-13 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of 3 d display device and stereo display control method |
| CN109106567A (en) * | 2018-08-29 | 2019-01-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of more sighting distance display systems for myopia |
| WO2019196399A1 (en) * | 2018-04-09 | 2019-10-17 | 浙江舜宇光学有限公司 | Eyepiece |
| CN111751988A (en) * | 2020-06-16 | 2020-10-09 | 深圳珑璟光电技术有限公司 | Depth of field adjusting method and device and binocular near-to-eye display equipment |
| WO2021017938A1 (en) * | 2019-07-31 | 2021-02-04 | 华为技术有限公司 | Display system, vr module and wearable device |
| CN113419350A (en) * | 2021-06-18 | 2021-09-21 | 腾讯科技（深圳）有限公司 | Virtual reality display device, picture presentation method, picture presentation device and storage medium |
| CN109960038B (en) * | 2017-12-26 | 2021-12-28 | 乐金显示有限公司 | Display device with eyepiece |
| CN113960798A (en) * | 2021-11-03 | 2022-01-21 | 上海鱼微阿科技有限公司 | Large-caliber optical assembly |
| CN114942523A (en) * | 2022-07-26 | 2022-08-26 | 歌尔光学科技有限公司 | Optical module and head-mounted display equipment |
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| CN108241212A (en) * | 2016-12-26 | 2018-07-03 | 乐金显示有限公司 | Head-mounted display apparatus |
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| CN108989787A (en) * | 2018-07-13 | 2018-12-11 | 京东方科技集团股份有限公司 | A kind of 3 d display device and stereo display control method |
| US10873743B2 (en) | 2018-07-13 | 2020-12-22 | Beijing Boe Display Technology Co., Ltd. | Stereoscopic display device and stereoscopic display control method |
| CN109106567A (en) * | 2018-08-29 | 2019-01-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of more sighting distance display systems for myopia |
| WO2021017938A1 (en) * | 2019-07-31 | 2021-02-04 | 华为技术有限公司 | Display system, vr module and wearable device |
| CN111751988A (en) * | 2020-06-16 | 2020-10-09 | 深圳珑璟光电技术有限公司 | Depth of field adjusting method and device and binocular near-to-eye display equipment |
| US11860375B2 (en) | 2021-06-18 | 2024-01-02 | Tencent Technology (Shenzhen) Company Limited | Virtual reality display device and method for presenting picture |
| CN113419350A (en) * | 2021-06-18 | 2021-09-21 | 腾讯科技（深圳）有限公司 | Virtual reality display device, picture presentation method, picture presentation device and storage medium |
| CN113960798A (en) * | 2021-11-03 | 2022-01-21 | 上海鱼微阿科技有限公司 | Large-caliber optical assembly |
| CN114942523A (en) * | 2022-07-26 | 2022-08-26 | 歌尔光学科技有限公司 | Optical module and head-mounted display equipment |
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Application publication date: 20160907 |