CN110119029A - Nearly eye imaging device and secondary imaging method - Google Patents
Nearly eye imaging device and secondary imaging method Download PDFInfo
- Publication number
- CN110119029A CN110119029A CN201910499224.4A CN201910499224A CN110119029A CN 110119029 A CN110119029 A CN 110119029A CN 201910499224 A CN201910499224 A CN 201910499224A CN 110119029 A CN110119029 A CN 110119029A
- Authority
- CN
- China
- Prior art keywords
- polarized light
- splitting device
- light splitting
- quarter
- wave plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 48
- 230000003287 optical effect Effects 0.000 claims description 41
- 230000010287 polarization Effects 0.000 claims description 12
- 238000002310 reflectometry Methods 0.000 claims description 11
- 230000011514 reflex Effects 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 3
- 230000004424 eye movement Effects 0.000 abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001396014 Priacanthus arenatus Species 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000002834 transmittance 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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
Abstract
The present invention provides a kind of nearly eye imaging device and secondary imaging methods, it is related to technical field of imaging, nearly eye imaging device provided by the invention includes figure source component, the first polarized light splitting device, the first quarter-wave plate, the first reflecting mirror, the second polarized light splitting device, the second quarter-wave plate and the second reflecting mirror, first polarized light splitting device is arranged between figure source component and the first quarter-wave plate, and the side that the first quarter-wave plate deviates from the first polarized light splitting device is arranged in the first reflecting mirror；Second quarter-wave plate is arranged between the second polarized light splitting device and the second reflecting mirror；First polarized light splitting device is used to the first polarized light splitting device reflexing to the second polarized light splitting device towards the light of the first quarter-wave plate side, and nearly eye imaging device provided by the invention can alleviate the field angle of nearly eye imaging device and the technical issues of eye movement range is limited to back focal length.
Description
Technical field
The present invention relates to technical field of imaging, more particularly, to a kind of nearly eye imaging device and secondary imaging method.
Background technique
Nearly eye display optical system is also referred to as Helmet Mounted Display, is that a kind of be shown on user's head for virtual reality etc. is worn
Visual displays, be initially mainly used in military and scientific research field, with scientific and technological progress and social development, people are to nearly eye
The understanding of display technology and study are more and more, and nearly eye display technology steps into people's lives.The size of field angle determines
The range in the visual field, field angle is bigger, and the visual field is bigger, therefore the bigger visual field is very heavy for nearly eye display optical system
It wants.In addition for nearly eye display optical system, comfort is particularly significant when user of service watches, usual biggish eye movement model
The comfort that can increase viewing is enclosed, but big eye movement range further increases the difficulty of nearly eye display optical system.
It can be Organic Light Emitting Diode, liquid crystal on silicon, micro- luminous two currently used for nearly eye display optical system image source
Grade light, digital micro-mirror etc., in order to make system integral miniaturization, image Source size is usually all smaller；However in order to increase field angle
It should be reduced with the back focal length of eye movement range, nearly eye imaging device, thus will lead to picture quality reduction, and adjusted by back focal length
Scope limitation field angle and eye movement range are difficult to increase.
Summary of the invention
The purpose of the present invention is to provide a kind of nearly eye imaging device and secondary imaging methods, close in the prior art to alleviate
The technical issues of field angle and eye movement range of eye imaging device are limited to back focal length.
In a first aspect, nearly eye imaging device provided by the invention, comprising: figure source component, the first polarized light splitting device, first
Quarter-wave plate, the first reflecting mirror, the second polarized light splitting device, the second quarter-wave plate and the second reflecting mirror；Described
One polarized light splitting device is arranged between the figure source component and first quarter-wave plate, the first reflecting mirror setting
Deviate from the side of first polarized light splitting device in first quarter-wave plate；The second quarter-wave plate setting
Between second polarized light splitting device and second reflecting mirror；First polarized light splitting device is used for described first
The light of polarized light splitting device towards first quarter-wave plate side reflexes to second polarized light splitting device.
With reference to first aspect, the present invention provides the first possible embodiments of first aspect, wherein described first
Polarized light splitting device is greater than 90% to the reflectivity of S light, to the transmissivity of S light less than 1%；First polarized light splitting device pair
The transmissivity of P light is greater than 85%, to the reflectivity of P light less than 2%.
With reference to first aspect, the present invention provides second of possible embodiments of first aspect, wherein described second
Polarized light splitting device is parallel with the optical axis of first polarized light splitting device.
The possible embodiment of second with reference to first aspect, the third the present invention provides first aspect are possible
Embodiment, wherein first quarter-wave plate and first reflecting mirror are arranged with optical axis, first polarization spectro
The optical axis included angle of device and first quarter-wave plate is 40 degree~50 degree.
The possible embodiment of second with reference to first aspect, the 4th kind the present invention provides first aspect are possible
Embodiment, wherein second quarter-wave plate and second reflecting mirror are arranged with optical axis, second polarization spectro
The optical axis included angle of device and second quarter-wave plate is 40 degree~50 degree.
With reference to first aspect, the present invention provides the 5th kind of possible embodiments of first aspect, wherein described first
Reflecting mirror uses concave mirror, and/or, second reflecting mirror uses concave mirror.
With reference to first aspect, the present invention provides the 6th kind of possible embodiments of first aspect, wherein described second
The reflectivity of reflecting mirror and the ratio range of transmissivity are 1:4~2:3.
With reference to first aspect, the present invention provides the 7th kind of possible embodiments of first aspect, wherein described second
The focal length of reflecting mirror is greater than the distance between second reflecting mirror and second polarized light splitting device.
With reference to first aspect, the present invention provides the 8th kind of possible embodiments of first aspect, wherein the figure source
Component includes: image source and lens group, and the lens group is arranged between described image source and first polarized light splitting device,
The lens group is for keeping light parallel with the optical axis of first quarter-wave plate approach.
Second aspect, secondary imaging method provided by the invention, comprising: the light for issuing figure source component is inclined through first
Vibration light-splitting device and the first quarter-wave plate are transferred to the first reflecting mirror；The light that first reflecting mirror reflects is again passed through the
One quarter-wave plate forms S light, and reflexes to the second polarized light splitting device by the first polarized light splitting device；By the second polarization point
The S light of optical device reflection penetrates the second quarter-wave plate, and is again passed through the second quarter-wave through the reflection of the second reflecting mirror
Piece forms P light to be imaged at human eye.
The embodiment of the present invention brings following the utility model has the advantages that using the setting of the first polarized light splitting device in figure source component and the
Between one quarter-wave plate, one that the first quarter-wave plate deviates from the first polarized light splitting device is arranged in the first reflecting mirror
The mode between the second polarized light splitting device and the second reflecting mirror is arranged in side, the second quarter-wave plate, passes through the first polarization
The light of first polarized light splitting device towards the first quarter-wave plate side is reflexed to the second polarized light splitting device by light-splitting device, from
And the light that figure source component can be made to issue forms the virtual image through secondary imaging, and then solution field angle and eye movement range are limited to rear coke
Away from the technical issues of, to obtain bigger field angle and eye movement range.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in order to illustrate more clearly of the specific embodiment of the invention or in the related technology, below will be to specific
Attached drawing needed in embodiment or description of Related Art is briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of nearly eye imaging device provided in an embodiment of the present invention；
Fig. 2 is the image source of nearly eye imaging device provided in an embodiment of the present invention and the schematic diagram one of lens group；
Fig. 3 is the image source of nearly eye imaging device provided in an embodiment of the present invention and the schematic diagram two of lens group；
Fig. 4 is the image source of nearly eye imaging device provided in an embodiment of the present invention and the schematic diagram three of lens group.
Icon: the imaging area 1`-；The Polaroid face 2`-；100- figure source component；110- image source；120- lens group；121-
First convex lens；The first concavees lens of 122-；The second convex lens of 123-；124- third convex lens；The second concavees lens of 125-；126-
Four convex lenses；127- third concavees lens；The 5th convex lens of 128-；The first polarized light splitting device of 200-；The first a quarter of 300-
Wave plate；The first reflecting mirror of 400-；The second polarized light splitting device of 500-；The second quarter-wave plate of 600-；The second reflecting mirror of 700-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
As shown in Figure 1, nearly eye imaging device provided in an embodiment of the present invention, comprising: the polarization point of figure source component 100, first
Optical device 200, the first quarter-wave plate 300, the first reflecting mirror 400, the second polarized light splitting device 500, the second a quarter
Wave plate 600 and the second reflecting mirror 700；First polarized light splitting device 200 is arranged in figure source component 100 and the first quarter-wave plate
Between 300, the side that the first quarter-wave plate 300 deviates from the first polarized light splitting device 200 is arranged in the first reflecting mirror 400；
Second quarter-wave plate 600 is arranged between the second polarized light splitting device 500 and the second reflecting mirror 700；First polarization spectro
Device 200 is used to reflexing to the light of the first polarized light splitting device 200 towards 300 side of the first quarter-wave plate into the second polarization point
Optical device 500.Wherein, figure source component 100, the first polarized light splitting device 200, the first quarter-wave plate 300 and the first reflection
Mirror 400 is located at the first optical path, and the second polarized light splitting device 500, the second quarter-wave plate 600 and the second reflecting mirror 700 are located at
Second optical path.
Light transmittance process includes: the image that emits of figure source component 100 along leveling off to parallel first quarter-wave plate 300
The direction of optical axis is transferred to the first polarized light splitting device 200, and the first polarized light splitting device 200 reflects S light, and makes P light transmission
First polarized light splitting device 200 is transferred to the first quarter-wave plate 300；P light pass through the first quarter-wave plate 300, and by
The reflection of first reflecting mirror 400 transmits the first quarter-wave plate 300 again to form S light；When S light is transferred to the first polarization point
When optical device 200, S light can be reflexed to the second polarized light splitting device 500 by the first polarized light splitting device 200, thus make light by
First optical path is transferred to the second optical path；S light is reflected through the second polarized light splitting device 500 across the second quarter-wave plate 600, and
Second quarter-wave plate 600 is transmitted to form P light, so that P light is transferred to imaging area 1` by the reflection of the second reflecting mirror 700 again
Form the virtual image that can be identified by the human eye.
It should be noted that thus the reflection of S light is had certain filter action, Ke Yiti by the first polarized light splitting device 200
High imaging definition；Polaroid face 2` is formed between first polarized light splitting device 200 and the second polarized light splitting device 500, is passed through
First polarized light splitting device 200 can at Polaroid face 2` towards the light that 300 side end face of the first quarter-wave plate is reflected
Realize Polaroid, but field angle at Polaroid face 2` and eye movement range are limited hardly possible by the back focal length of figure source component 100
To increase.And works as light and reflex to the second quarter-wave plate 600 through the second polarized light splitting device 500, then by the second reflecting mirror
700 reflection it is secondary pass through the second quarter-wave plate 600 after the virtual image can be formed at the 1` of imaging area, field angle and eye movement range are not
It is only influenced again by 100 back focal length of figure source component, it is possible thereby to obtain bigger field angle and eye movement range.
In embodiments of the present invention, the first polarized light splitting device 200 is for reflecting S light and transmiting P light；First polarization spectro
Device 200 is greater than 90% to the reflectivity of S light, to the transmissivity of S light less than 1%；First polarized light splitting device 200 is to P light
Transmissivity is greater than 85%, to the reflectivity of P light less than 2%.Wherein, the first polarized light splitting device 200 can make in light 90% with
On S light reflex to the first polarized light splitting device 200 deviate from the first quarter-wave plate 300 side, thus reach optical filtering effect
Fruit；In addition, the first polarized light splitting device 200 can ensure that in light 85% or more P light transmission, and then ensure that enough light passes
The first quarter-wave plate 300 is handed to guarantee for the bright and clear of imaging.
Further, the second polarized light splitting device 500 is parallel with the optical axis of the first polarized light splitting device 200.Partially through first
Vibration light-splitting device 200 can be transferred to the second polarized light splitting device towards the light that 300 side end face of the first quarter-wave plate is reflected
500, the second polarized light splitting device 500 is parallel with the optical axis of the first polarized light splitting device 200, and it is inclined from first to advantageously reduce light
Vibration light-splitting device 200 is transferred to the loss during the second polarized light splitting device 500.
Further, the first quarter-wave plate 300 and the first reflecting mirror 400 are arranged with optical axis, the first polarizing beam splitter
The optical axis included angle of part 200 and the first quarter-wave plate 300 is 40 degree~50 degree.Wherein, 200 direction of the first polarized light splitting device
The end face of 100 side of figure source component figure source component 100 can be emitted beam in P light by reflection filter out, the first polarizing beam splitter
The end face of part 200 towards 300 side of the first quarter-wave plate can be anti-by the S light being transmitted to from the first quarter-wave plate 300
It is incident upon the second polarized light splitting device 500, the optical axis included angle of the first polarized light splitting device 200 and the first quarter-wave plate 300 is
45 degree, so as to ensure that 200 two sides of the first polarized light splitting device all have enough spaces with reflection light.
Further, the second quarter-wave plate 600 and the second reflecting mirror 700 are arranged with optical axis, the second polarizing beam splitter
The optical axis included angle of part 500 and the second quarter-wave plate 600 is 40 degree~50 degree.Wherein, anti-through the second polarized light splitting device 500
The light penetrated can be transferred to the second quarter-wave plate 600, be transferred to the second polarizing beam splitter from the second quarter-wave plate 600
The second polarized light splitting device of P light transmissive 500 of part 500 is transferred to imaging area 1`；Second polarized light splitting device 500 and the two or four
The optical axis included angle of/mono- wave plate 600 is 45 degree, can generate refraction angle ensuring the second polarized light splitting device of P light transmission 500
Spend it is lesser under the conditions of, so that the light of the light reflected through the second polarized light splitting device 500 reflection enough is transferred to the two or four point
One of wave plate 600.
Further, the first reflecting mirror 400 uses concave mirror, and/or, the second reflecting mirror 700 uses concave mirror.
As shown in Figure 1, the first reflecting mirror 400 can be used plane mirror or concave mirror, and using metal film or
The highly reflecting films such as person's deielectric-coating are to improve reflectivity.By taking the first reflecting mirror 400 is using concave mirror as an example, through the first reflecting mirror 400
The S light of reflection can produce convergence, can form light convergence in Polaroid face 2` after the reflection of the first polarized light splitting device 200
Point.Concave mirror can be used in second reflecting mirror 700, thus can reflect light and light is made to generate convergence, the second reflecting mirror 700
Focus is located at imaging area 1`, and human eye can watch the virtual image to be formed in imaging area 1`.
Further with, the ratio range of the reflectivity of the second reflecting mirror 700 and transmissivity is 1:4~2:3.Wherein,
Two-mirror 700 uses half-reflecting half mirror, the ratio of reflectivity and transmissivity optional 2:8,3:7,4:6 or 5:5.Through second
Reflecting mirror 700 reflect and transmit again the second quarter-wave plate 600 light may pass through the second polarized light splitting device 500 at
As area 1` forms the virtual image；In addition, human eye can penetrate the second polarized light splitting device 500, the second quarter-wave plate in imaging area 1`
600 and second reflecting mirror 700 observe external entity image.
Further, the spherical mirror of glass material can be selected in the first reflecting mirror 400 and the second reflecting mirror 700, alternatively, choosing
With the aspherical mirror of plastic material, thus guarantee image quality under conditions of combining difficulty of processing and production cost.
Further, the focal length of the second reflecting mirror 700 be greater than the second reflecting mirror 700 and the second polarized light splitting device 500 it
Between distance.Wherein, the second reflecting mirror 700 uses concave mirror, and focal length is 15mm~80mm.The focal length of second reflecting mirror 700
Greater than the distance between the second polarized light splitting device 500 and the second reflecting mirror 700, so that it is guaranteed that light converges in the second polarization point
Optical device 500 deviates from the side of the second reflecting mirror 700.First reflecting mirror 400 uses concave mirror, and first reflecting mirror 400
Focal length is greater than spacing between the first reflecting mirror 400 and the first polarized light splitting device 200, for example, by using focal length greater than the of 15mm
One reflecting mirror 400, thus make Polaroid face 2` be located at the first polarized light splitting device 200 and the second polarized light splitting device 500 it
Between.
Further, figure source component 100 includes: image source 110 and lens group 120, and lens group 120 is arranged in image source
110 and first between polarized light splitting device 200, and lens group 120 is for making light and the optical axis of the first quarter-wave plate 300 become
It is close parallel.Wherein, it is micro- that Organic Light Emitting Diode, liquid crystal on silicon, micro- light-emitting diode light, digital micro-mirror etc. can be used in image source 110
Image source should be in liquid crystal on silicon away from the side of the first polarized light splitting device 200 by taking image source 110 is using liquid crystal on silicon as an example
Light source is set, and so that light is passed through the liquid crystal on silicon with image and exposes to the first polarized light splitting device 200.Lens group 120 with
First quarter-wave plate 300 is arranged with optical axis, and lens group 120 can be consisted of multiple lenses focal length 9mm~30mm, and light penetrates
Lens group 120 can produce convergence, thus can make the light and first that the first polarized light splitting device 200 is transferred to from image source 110
The optical axis approach of quarter-wave plate 300 is parallel.
As depicted in figs. 1 and 2, lens group 120 includes the first convex lens 121, the first concavees lens 122 and the second convex lens
123, from close to image source 110 to close first polarized light splitting device, 200 direction, the first convex lens 121, the first concavees lens 122
Setting is successively spaced with the second convex lens 123, and the first concavees lens 122 are equipped with convex surface away from the side of the first convex lens 121, the
Two convex lenses 123 are equipped with plane towards the side of the first concavees lens 122, and light is issued from image source 110, and it is convex to sequentially pass through first
Lens 121, the first concavees lens 122 and the second convex lens 123 can be leveled off to by refraction edge and the direction of 120 optical axis of lens group pass
It passs.
As shown in figures 1 and 3, lens group 120 includes from close to image source 110 to close first polarized light splitting device 200
Direction successively spaced third convex lens 124, the second concavees lens 125, the 4th convex lens 126 and third concavees lens 127,
Two concavees lens 125 are equipped with plane towards the side of image source 110, and third concavees lens 127 are away from the first polarized light splitting device 200
Side is equipped with convex surface, and light is issued from image source 110, sequentially passes through third convex lens 124, the second concavees lens 125, the 4th convex lens
Mirror 126 and third concavees lens 127 can be leveled off to by refraction edge and the direction of 120 optical axis of lens group transmitted.
As shown in Figure 1 and Figure 4, lens group 120 includes from close to image source 110 to close first polarized light splitting device 200
Direction successively spaced 5th convex lens 128, third convex lens 124, the second concavees lens 125 and the second convex lens 123,
Five convex lenses 128 are equipped with plane towards the side of image source 110, and light is issued from image source 110, sequentially pass through the 5th convex lens
128, third convex lens 124, the second concavees lens 125 and the second convex lens 123 can be leveled off to and 120 light of lens group by refraction edge
It transmits in the direction of axis.
Embodiment two
As shown in Figure 1, secondary imaging method provided in an embodiment of the present invention, comprising: the light for issuing figure source component 100
The first reflecting mirror 400 is transferred to through the first polarized light splitting device 200 and the first quarter-wave plate 300；By the first reflecting mirror
The light of 400 reflections is again passed through the first quarter-wave plate 300 and forms S light, and is reflexed to by the first polarized light splitting device 200
Second polarized light splitting device 500；The S light that second polarized light splitting device 500 is reflected penetrates the second quarter-wave plate 600, and
The second quarter-wave plate 600, which is again passed through, through the reflection of the second reflecting mirror 700 forms P light to be imaged at human eye.First polarization
Polaroid face 2` is formed between light-splitting device 200 and the second polarized light splitting device 500, through 200 court of the first polarized light splitting device
The light reflected to 300 side end face of the first quarter-wave plate can be achieved Polaroid at Polaroid face 2`；When light passes through
Second polarized light splitting device 500 reflexes to the second quarter-wave plate 600, then is reflected by the second reflecting mirror 700 and secondary pass through
The virtual image can be formed at the 1` of imaging area after two quarter-wave plates 600, from there through secondary imaging obtain bigger field angle and
Eye movement range.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of nearly eye imaging device characterized by comprising figure source component (100), the first polarized light splitting device (200),
One quarter-wave plate (300), the first reflecting mirror (400), the second polarized light splitting device (500), the second quarter-wave plate
(600) and the second reflecting mirror (700)；
First polarized light splitting device (200) is arranged in the figure source component (100) and first quarter-wave plate
(300) between, the first reflecting mirror (400) setting is in first quarter-wave plate (300) away from first polarization
The side of light-splitting device (200)；
Second quarter-wave plate (600) is arranged in second polarized light splitting device (500) and second reflecting mirror
(700) between；
First polarized light splitting device (200) is used for first polarized light splitting device (200) towards described one or four point
One of the light of wave plate (300) side reflex to second polarized light splitting device (500).
2. nearly eye imaging device according to claim 1, which is characterized in that
First polarized light splitting device (200) is greater than 90% to the reflectivity of S light, to the transmissivity of S light less than 1%；
First polarized light splitting device (200) is greater than 85% to the transmissivity of P light, to the reflectivity of P light less than 2%.
3. nearly eye imaging device according to claim 1, which is characterized in that second polarized light splitting device (500) with
The optical axis of first polarized light splitting device (200) is parallel.
4. nearly eye imaging device according to claim 3, which is characterized in that first quarter-wave plate (300) with
First reflecting mirror (400) is arranged with optical axis, first polarized light splitting device (200) and first quarter-wave plate
(300) optical axis included angle is 40 degree~50 degree.
5. nearly eye imaging device according to claim 3, which is characterized in that second quarter-wave plate (600) with
Second reflecting mirror (700) is arranged with optical axis, second polarized light splitting device (500) and second quarter-wave plate
(600) optical axis included angle is 40 degree~50 degree.
6. nearly eye imaging device according to claim 1, which is characterized in that first reflecting mirror (400) uses concave surface
Mirror, and/or, second reflecting mirror (700) uses concave mirror.
7. nearly eye imaging device according to claim 1, which is characterized in that the reflectivity of second reflecting mirror (700)
Ratio range with transmissivity is 1:4~2:3.
8. nearly eye imaging device according to claim 1, which is characterized in that the focal length of second reflecting mirror (700) is big
In the distance between second reflecting mirror (700) and second polarized light splitting device (500).
9. nearly eye imaging device according to claim 1, which is characterized in that the figure source component (100) includes: image source
(110) it is arranged with lens group (120), the lens group (120) in described image source (110) and first polarized light splitting device
(200) between, the lens group (120) is for keeping light parallel with the optical axis approach of first quarter-wave plate (300).
10. a kind of secondary imaging method, which is characterized in that the secondary imaging method includes:
The light that figure source component (100) are issued penetrates the first polarized light splitting device (200) and the first quarter-wave plate (300)
It is transferred to the first reflecting mirror (400)；
The light that first reflecting mirror (400) are reflected is again passed through the first quarter-wave plate (300) and forms S light, and by first
Polarized light splitting device (200) reflexes to the second polarized light splitting device (500)；
The S light of the second polarized light splitting device (500) reflection is penetrated into the second quarter-wave plate (600), and through the second reflecting mirror
(700) reflection is again passed through the second quarter-wave plate (600) and forms P light to be imaged at human eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499224.4A CN110119029A (en) | 2019-06-11 | 2019-06-11 | Nearly eye imaging device and secondary imaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499224.4A CN110119029A (en) | 2019-06-11 | 2019-06-11 | Nearly eye imaging device and secondary imaging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110119029A true CN110119029A (en) | 2019-08-13 |
Family
ID=67523984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910499224.4A Pending CN110119029A (en) | 2019-06-11 | 2019-06-11 | Nearly eye imaging device and secondary imaging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110119029A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221281A (en) * | 2008-01-24 | 2008-07-16 | 上海微电子装备有限公司 | Full reflection projection optical system |
| WO2014031326A1 (en) * | 2012-08-21 | 2014-02-27 | 3M Innovative Properties Company | Viewing device |
| CN103837988A (en) * | 2014-03-05 | 2014-06-04 | 杭州科汀光学技术有限公司 | Minitype near-to-eye display optical system |
| CN103869472A (en) * | 2014-04-11 | 2014-06-18 | 成都西麦克虚拟现实电子技术有限公司 | Head-up display system and head-up display method thereof |
| CN103969815A (en) * | 2014-04-30 | 2014-08-06 | 中国科学院长春光学精密机械与物理研究所 | Small lightweight long-focus distortion elimination coaxial total-reflection space camera optical system |
| CN108681068A (en) * | 2018-02-12 | 2018-10-19 | 杭州太若科技有限公司 | AR display devices and wearable AR equipment |
| CN108873344A (en) * | 2018-07-09 | 2018-11-23 | 歌尔科技有限公司 | Optical system and wear display equipment |
| US20190025602A1 (en) * | 2017-07-20 | 2019-01-24 | Google Llc | Compact near-eye display optics for augmented reality |
| CN209842242U (en) * | 2019-06-11 | 2019-12-24 | 浙江水晶光电科技股份有限公司 | Near-to-eye imaging device |
-
2019
- 2019-06-11 CN CN201910499224.4A patent/CN110119029A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221281A (en) * | 2008-01-24 | 2008-07-16 | 上海微电子装备有限公司 | Full reflection projection optical system |
| WO2014031326A1 (en) * | 2012-08-21 | 2014-02-27 | 3M Innovative Properties Company | Viewing device |
| CN103837988A (en) * | 2014-03-05 | 2014-06-04 | 杭州科汀光学技术有限公司 | Minitype near-to-eye display optical system |
| CN103869472A (en) * | 2014-04-11 | 2014-06-18 | 成都西麦克虚拟现实电子技术有限公司 | Head-up display system and head-up display method thereof |
| CN103969815A (en) * | 2014-04-30 | 2014-08-06 | 中国科学院长春光学精密机械与物理研究所 | Small lightweight long-focus distortion elimination coaxial total-reflection space camera optical system |
| US20190025602A1 (en) * | 2017-07-20 | 2019-01-24 | Google Llc | Compact near-eye display optics for augmented reality |
| CN108681068A (en) * | 2018-02-12 | 2018-10-19 | 杭州太若科技有限公司 | AR display devices and wearable AR equipment |
| CN108873344A (en) * | 2018-07-09 | 2018-11-23 | 歌尔科技有限公司 | Optical system and wear display equipment |
| CN209842242U (en) * | 2019-06-11 | 2019-12-24 | 浙江水晶光电科技股份有限公司 | Near-to-eye imaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107329273B (en) | Near-to-eye display device | |
| JP4218553B2 (en) | Image display device | |
| WO2019154430A1 (en) | Wearable ar system, ar display device, and projection source module thereof | |
| WO2017129029A1 (en) | Waveguide-based display system | |
| KR20170097661A (en) | Substrate-guided optical device | |
| CN107045199B (en) | head-up display optical device | |
| KR20010073072A (en) | Head-mounted display | |
| CN107065181B (en) | Optical system of virtual reality equipment | |
| CN111487786A (en) | Optical display system, control method and display device | |
| JP5890898B2 (en) | Virtual image display optical machine | |
| US11287663B2 (en) | Optical transmitting module and head mounted display device | |
| CN102004317A (en) | Spectacles-type image display device | |
| KR20010089170A (en) | Head-mounted display | |
| TW201940923A (en) | Display | |
| US20210278668A1 (en) | Near eye display device | |
| JP2021124539A (en) | Image observation device | |
| CN210776039U (en) | Miniaturized short-distance optical system | |
| US10558041B2 (en) | Virtual reality image system with high definition | |
| JP3524569B2 (en) | Visual display device | |
| KR20130116548A (en) | Optical system for see-through type head mounted display | |
| CN209842242U (en) | Near-to-eye imaging device | |
| CN105093529A (en) | Display device | |
| CN110119029A (en) | Nearly eye imaging device and secondary imaging method | |
| US20220054003A1 (en) | Polarized visual acuity chart projector | |
| CN205157873U (en) | A glasses for penetration demonstration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |