CN106707510A - Contact lens type optical system and head-mounted display equipped with same - Google Patents
Contact lens type optical system and head-mounted display equipped with same Download PDFInfo
- Publication number
- CN106707510A CN106707510A CN201611154265.2A CN201611154265A CN106707510A CN 106707510 A CN106707510 A CN 106707510A CN 201611154265 A CN201611154265 A CN 201611154265A CN 106707510 A CN106707510 A CN 106707510A
- Authority
- CN
- China
- Prior art keywords
- light
- lens
- optical system
- contact lenses
- generation unit
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 139
- 230000010287 polarization Effects 0.000 claims abstract description 87
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000001228 spectrum Methods 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 210000001747 pupil Anatomy 0.000 abstract description 8
- 238000003384 imaging method Methods 0.000 abstract description 2
- 238000007639 printing Methods 0.000 description 11
- 230000000007 visual effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000012549 training 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
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
Abstract
The invention discloses a contact lens type optical system and a head-mounted display equipped with the same. The contact lens type optical system is arranged between an image generating unit and human eyes, and comprises a lens, a light split assembly, a quarter-wave plate assembly and a polarization filter, wherein the lens is used for forming a preset focal length for light information of an image generated by the image generating unit; the light split assembly is used for enabling target light to enter an image receiver after passing through the lens back and forth for many times, and comprises a first light spliter located between the lens and the image generating unit and a second light spliter located between the lens and the human eyes; the quarter-wave plate assembly is used for adding a quarter wavelength of phase for transmission light; the polarization filter is used for shielding stray light from entering the image receiver, and the lens, the light split assembly, the quarter-wave plate assembly and the polarization filter are fitted together to form a contact lens. The head-mounted display comprises the contact lens type optical system and the image generating units arranged on the same optical axis. The contact lens type optical system and the head-mounted display equipped with the same, disclosed by the invention, have the characteristics of compactness, small volume, light weight, large field angle, large exit pupil diameter and good imaging quality.
Description
Technical field
The present invention relates to head-mounted display system, more particularly to a kind of contact lenses formula optical system and assemble the light
The head-mounted display of system.
Background technology
Modern various electronics or optical system are just towards miniature, high performance aspect development.Head-mounted display is in recent years
Just emerging a kind of display system, in multimedia propagation, Entertainment, military training, industrial field control, medical treatment and virtual
The field such as reality and augmented reality is all widely used.Head-mounted display (English full name Head-Mounted Display, English
Text abbreviation HMD) life of people has been come into, it brings user strong feeling of immersion and the sense of reality, can be brought for the mankind
Subversiveness on visual experience breaks through, and has highly important application and commercial value.
Head-mounted display will accomplish small weight, small size, comfortable wearing and big visual field as far as possible.The core of head-mounted display
Part is optical system, and the quality of Performance of Optical System directly determines the property indices of head-mounted display.
According to the path that light is propagated, the optical system of head-mounted display can be divided into coaxial system and off-axis system.Greatly
Part centered optical system volume is big, weight is big, image quality is poor, and is difficult to solve the angle of visual field and emergent pupil away from small-sized with equipment
Conflict between change.In off-axis optical system because number of lenses is more, assembling is difficult, high cost, so volume and weight is also very
Hardly possible reduces.With the development and the raising of machining accuracy of technology, free form surface is gradually applied in head mounted display optical system,
Its volume and weight that can reduce system, image quality is also lifted.But, the free form surface being related in existing literature is saturating
Mirror still has that volume is excessive, simultaneously because the difficulty of processing of free form surface is big, optical system is often expensive.
It is public during entitled " a kind of head mounted display ", Authorization Notice No. are for the Chinese invention patent of CN 201184928Y
A kind of head mounted display of a piece of Fresnel Lenses of use is opened, because the precision of Fresnel Lenses is not high, and can have been formed
Blind area and Gao Minqu, so its aberration is big, it is impossible to provide good visual effect to wearer.
The China of entitled " two-piece free-form surface head mounted display optical system ", Publication No. CN 101900872A
Patent of invention discloses a kind of biplate free surface system.Main lens in the invention has two sides for free form surface, relative to three
The full free curved surface prism in face, the length of the invention are because off axis and reduce but still more long, do not have substantial breakthrough.
Second lens in the invention can be bonded with image source, and image source is non-exchange, and maintenance penalty is high.
The content of the invention
The technical problem to be solved in the present invention is to propose that a kind of light for sending image generation unit repeatedly comes and goes to pass through
The optical system of the contact lenses formula that can be directly worn on human eye of human eye is imported after lens focusing and the optical system is assembled
The head-mounted display of system.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
The present invention provides a kind of contact lenses formula optical system, and the contact lenses formula optical system is located at image generation unit
And human eye between.The contact lenses formula optical system includes：
Lens, the image optical information for being generated to image generation unit forms predetermined focal length；
Spectrum groupware, comes and goes repeatedly by saturating for the target light in the image optical information for making image generation unit generation
Enter picture receiver, including the first optical splitter and the second optical splitter after mirror, the first optical splitter is located at lens and image generation is single
Between unit, the second optical splitter is located between lens and human eye；
Quarter-wave plate component, for increasing quarter-wave phase to transmitted light；And
Polarization filter, connects for the spurious rays in the image optical information for stopping image generation unit generation into image
Receive device,
Wherein, lens, spectrum groupware, quarter-wave plate component and polarization filter fit together to form stealthy eye
Mirror.
For above-mentioned contact lenses formula optical system, the first optical splitter is used to transmiting the light with the first polarization state and anti-
Penetrate the light with second polarization state orthogonal with the first polarization state.
For above-mentioned contact lenses formula optical system, the first optical splitter is that lens are coated with partially near image generation unit side
Shake spectro-film surface or the polarization spectro piece between lens and image generation unit.
For above-mentioned contact lenses formula optical system, the second optical splitter be used to transmiting incident light a portion and
And reflection remainder.
For above-mentioned contact lenses formula optical system, the second optical splitter is spectroscope.
For above-mentioned contact lenses formula optical system, the image optical information of image generation unit generation is polarised light, or
The optical system also include be attached to the first optical splitter towards image generation unit one side on polarization shaper, for retain with
The parallel linearly polarized light of its light transmission shaft.
For above-mentioned contact lenses formula optical system, polarization shaper is polarizer.
For above-mentioned contact lenses formula optical system, generated with image as the light transmission shaft of the polarizer of polarization shaper single
The polarization direction of the polarised light that the light that the polarised light or image generation unit that unit sends send is formed through first time polarization is vertical.
For above-mentioned contact lenses formula optical system, quarter-wave plate component include being located at lens and the second optical splitter it
Between the first quarter-wave plate and the second quarter-wave plate between the second optical splitter and polarization filter.
For above-mentioned contact lenses formula optical system, the fast axle of the first quarter-wave plate sends with image generation unit
The polarization direction angle of the polarised light that the light that polarised light or image generation unit send is formed through first time polarization is 45 °.
For above-mentioned contact lenses formula optical system, the fast axle of the second quarter-wave plate and the first quarter-wave plate
Fast axle is vertical.
For above-mentioned contact lenses formula optical system, polarization filter is polarizer.
For above-mentioned contact lenses formula optical system, lens are the lens groups of simple lens or multiple lens gluings.
For above-mentioned contact lenses formula optical system, lens two sides type is respectively plane, sphere, extension double cubic surface
Or any one in free form surface.
The present invention also provides a kind of head-mounted display.The head-mounted display include above-mentioned contact lenses formula optical system and with
Its image generation unit in same optical axis.
For above-mentioned head-mounted display, the head-mounted display global shape is frame eyeglasses shape.
For above-mentioned head-mounted display, image generation unit is for integral type display and including left and right two parts, or bag
Include two displays in left and right.
For above-mentioned head-mounted display, the image that two displays of left and right two parts of image generation unit or left and right show
Between have parallax.
Compared with prior art, the main advantage of technical solution of the present invention is as follows：
1st, imported after the light that image generation unit sends being reflected and reflected using contact lenses formula optical system
The eye of observer, because light is reflected and reflected twice in lens interior, therefore is equivalent to two aberrations of lens
Calibration result, thus obtain it is enough as matter when reduce the size of system.
2nd, contact lenses formula optical system of the invention is more succinct, only needs a piece of lens, and system overall length is small, small volume,
It is lightweight, it is easy to user to carry and use.
3rd, contact lenses formula optical system field of view angle of the invention is big, user's comfortable wearing and feeling of immersion is strong, is suitable as
The head-mounted display eyepiece of virtual reality.
4th, optical system exit pupil diameter is big in the present invention, is easy to be matched with the pupil of wearer's eyes.
5th, whole head-mounted display so compact conformation, small volume and lightweight, and has similar to the structure of glasses
The angle of visual field is big, exit pupil diameter is big and the characteristics of good imaging quality.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the structural representation of the contact lenses formula optical system described in one embodiment of the invention；
Fig. 2 is the structural representation of the contact lenses formula optical system described in the embodiment of the present invention 1；
Fig. 3 is the structural representation of the contact lenses formula optical system described in the embodiment of the present invention 2；
Fig. 4 is the point range figure of the contact lenses formula optical system shown in Fig. 1；
Fig. 5 is the distortion figure of the contact lenses formula optical system shown in Fig. 1；
Fig. 6 is the overall structure figure of the head-mounted display described in one embodiment of the invention；
Fig. 7 is the overall structure figure of the head-mounted display described in another embodiment of the present invention.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.Conversely, there is provided these embodiments are able to be best understood from the disclosure, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.
Fig. 1 shows the structural representation of the contact lenses formula optical system described in one embodiment of the invention.
As shown in figure 1, contact lenses formula optical system 2 of the invention is located between image generation unit 1 and human eye 3.Should
Contact lenses formula optical system 2 includes lens 21, and lens 21 are used to form pre- to the image optical information of image generation unit generation
Fixed focal length.Lens 21 can be the uniform lens of material, and its material do not limit, for example, can be glass or transparent organic glass, this
Outward, lens 21 can also be the balsaming lens or lens group of two or more materials composition.Additionally, any in the two sides of lens 21
The face type of side can be plane, it is also possible to certain curvature, such as sphere, extension double cubic surface or free form surface.
Optical system of the invention includes spectrum groupware 22, in the image optical information for making image generation unit generation
Target light is come and gone repeatedly by entering human eye 3 after lens 21.The spectrum groupware includes the first optical splitter 221 and the second optical splitter
222, the first optical splitter 221 is located between lens 21 and image generation unit 1, and the second optical splitter 222 is located at lens 21 and human eye 2
Between.First optical splitter 221 is used to transmit the linearly polarized light with the first polarization state and reflect with the second orthogonal polarization
The linearly polarized light of state, can be attached to lens 3 towards the polarization beam splitter in the one side of image generation unit 1, as an alternative
The polarization spectro piece between lens 3 and image generation unit 1 can also be provided in.Second optical splitter 222 is used for incidence
Light transmits a portion and reflection remainder, can be spectroscope, makes a light part incident thereon through simultaneously
And another part reflects, the ratio through light and reflected light can be determined according to specific requirement, be not specifically limited herein.
Optical system of the invention includes quarter-wave plate component 23, for increasing quarter-wave to transmitted light
Phase.Quarter-wave plate component 23 includes the first quarter-wave plate 231 and the second quarter-wave plate 232.
Optical system of the invention includes polarization filter 24, the image optical information for stopping image generation unit generation
In spurious rays enter human eye 3.Polarization filter 24 can be a polarizer.
Lens 21, spectrum groupware 22, quarter-wave plate component 23 and polarization filter 24 fit together to form hidden
Shape glasses.
Head-mounted display apparatus of the invention include above-mentioned contact lenses formula optical system 2 and with it in same optical axis
Image generation unit 1.Structure of the whole head-mounted display similar to glasses.
Image generation unit 1 is image source, and image generation unit 1 can be mobile phone display screen, or micro-display, all
It is that the display that can be emitted beam can serve as image source and be applied in this optical system.Image generation unit 1 is integral type
Display or including left and right two displays.
In one embodiment, the light of the outgoing of image generation unit 1 does not have polarization characteristic, and the light is incided and is attached to
Towards the polarization shaper 25 in the one side of image generation unit 1, polarization shaper 25 sends out the light of incidence to first optical splitter 221
Raw polarization forms linearly polarized light.Polarization shaper 25 for example can be a polarizer.As the polarizer of polarization shaper 25
Linear polarizer is with as the polarizer of polarization filter 24, polarization direction can be made parallel with linear polarizer printing opacity direction
Light passes through, and the polarization direction light vertical with linear polarizer printing opacity direction is blocked, such that it is able to specific light is passed through.
In another embodiment, image generation unit 1 and polarization shaper 25 can be realized using mobile phone display screen, hand
The light that machine display screen sends usually linearly polarized light, therefore can directly with mobile phone alternate image generation unit 1 and polarization shape
Grow up to be a useful person 25.Image generation unit 1 can also be micro-display or micro projector, and every display that can be emitted beam all may be used
As image source.The micro-projector of liquid crystal on silicon (LCOS) three color (RGB) shadow casting technique can such as be used as the present embodiment
Head-mounted display apparatus image generation unit 1.
As shown in Fig. 2 the contact lenses formula optical system 1 described in the embodiment of the present invention 1 is included along optical axis direction from mobile phone
11 to the polarization spectro piece 2211, lens 21, the first quarter-wave plate 231, spectroscope 2221 set gradually between human eye 3,
Second quarter-wave plate 232 and polarizer 241.Specifically, image optical information is from the display screen outgoing of mobile phone 11, from hand
The light of the display screen outgoing of machine 11 has polarization characteristic, referred to as the first linearly polarized light, and the first linearly polarized light is by polarization spectro piece
2211 and lens 21 transmission after incide the first quarter-wave plate 231, the phase by the first quarter-wave plate 231 is prolonged
Lag to form the circularly polarized light of the first direction of rotation, the circularly polarized light of the first direction of rotation forms after inciding spectroscope 2221
One reflected light and the first transmitted light.First transmitted light after the second quarter-wave plate 232 by being changed into polarization direction and polarizer
The vertical linearly polarized light in 241 printing opacity direction, the linearly polarized light can not be by the printing opacity direction polarization vertical with its polarization direction
Piece 241.First reflected light is again incident on the first quarter-wave plate 231, and the phase by the first quarter-wave plate 231 is prolonged
Lag to form polarization direction second linearly polarized light vertical with the polarization direction of the first linearly polarized light, the second linearly polarized light is by saturating
Reflected by polarization spectro piece 2211 after the deviation of mirror 21, the first quarter-wave plate 231, and quilt are incided after being again passed through lens 21
Direction of rotation is formed after the phase delay of first quarter-wave plate 231 opposite with the direction of rotation of the first direction of rotation circularly polarized light
The second direction of rotation circularly polarized light, the circularly polarized light of the second direction of rotation by spectroscope 2221 formed the second reflected light and
Second transmitted light, the second transmitted light forms the printing opacity direction of polarization direction and polarizer 241 by the second quarter-wave plate 232
The second parallel linearly polarized light, the second linearly polarized light is by entering human eye 3 after polarizer 241.
Wherein, the circularly polarized light of the first direction of rotation is right-handed polarized light or left-hand polarization light.
In the above-described embodiments, the printing opacity direction of principal axis of polarizer 241 is vertical with the polarization direction of the first linearly polarized light, and first
Polarization direction of the transmitted light by formation polarization direction and the first linearly polarized light after the phase delay of the second quarter-wave plate 232
The second parallel linearly polarized light, because its polarization direction is vertical with the printing opacity direction of polarizer 241, therefore is hidden by polarizer 241
Gear, it is impossible to enter into human eye 3.Additionally, the second transmitted light incides human eye, the second reflected light is again by the first quarter-wave
Piece 231 and lens 21, then pass through polarization spectro piece 2211, no longer turn back in the optical path afterwards.
This contact lenses formula optical system only needs a piece of lens.Lens 21 can be simple lens, or reach identical
The lens group of lens or the poly-lens composition of the multi-disc lens gluing of effect.Surface of the lens 21 towards the side of mobile phone 11
Can be any one in plane, common sphere, aspherical, free form surface and extension double cubic surface.The direction of lens 21
The surface of the side of human eye 3 can be plane, common sphere, aspherical, free form surface and extension double cubic surface in it is any
It is a kind of.
Polarization spectro piece 2211 is used to transmit the linearly polarized light parallel with the polarization direction of the first linearly polarized light and reflect
The linearly polarized light vertical with the polarization direction of the first linearly polarized light.
First quarter-wave plate 231 and the second quarter-wave plate 232 are used to increase transmitted light the phase of 1/4 wavelength
Position, and the fast axle of the first quarter-wave plate 231 and the polarization direction angle of the first linearly polarized light are 45 °, the two or four/
The fast axle of one wave plate 232 and the polarization direction angle of the first linearly polarized light are -45 °.
Spectroscope 2221 is mainly used in reflecting light and being transmitted, and does not play a part of to change polarization of light state.
The light splitting ratio of spectroscope 2221 sets according to system actual demand.
Preferably, polarization spectro piece 2211, the first quarter-wave plate 231, spectroscope 2221, the second quarter-wave plate
232 and polarizer 241 grow, be deposited with or be fitted in lens successively according to order by way of crystal production or plated film
21 surface.
The advantage of above-mentioned contact lenses formula optical system is to realize two panels or more multi-disc lens just using a piece of lens
The picture matter that can be reached, it is achieved thereby that the requirement of identical image quality is realized using smaller thickness and volume, it is small to the optics
System can make the thin slice similar to contact lenses.The system completes a piece of lens and reaches several image quality of lens
Reason is multiple by reflecting reflection, using lens material and marginal refractive, so as to form what a piece of lens were repeatedly utilized
Physical essence.
Contact lenses formula optical system described in embodiments of the invention 2 is as shown in Figure 3.What image generation unit 1 was produced
Light can consider without polarization characteristic, by after the first polarizer 251, it is assumed that light is direction of vibration along the first of x-axis
There is deviation in linearly polarized light, the first linearly polarized light, attached then when by the first quarter-wave plate 231 at lens 21
Plus the phase of 1/4 wavelength, so as to be modulated to right-handed polarized light, this light has been divided into two beams in the presence of spectroscope 2221,
Respectively spurious rays and target light.
The light as veiling glare transmitted on spectroscope 2221 by the light of the first quarter-wave plate 231
Line.Spurious rays continue to propagate forward through spectroscope 2221, then by the wavelength of 232 affix of the second quarter-wave plate 1/4
Phase, be modulated to linearly polarized light, polarization direction is along x-axis.Due to the printing opacity direction of principal axis and the first polarizer of the second polarizer 241
251 is vertical, is that along the y-axis direction, so spurious rays can not pass through the second polarizer 241, human eye is not it is observed that this light.
Therefore, this Optical devices can prevent spurious rays from passing through, and target light is normally passed through, the mesh that realization is screened to light
's.
By the light of the first quarter-wave plate 231 be split mirror 2221 reflection light as target light.Due to
Reflection is that occur on the interface of optically thinner medium to optically denser medium, so target light can add a phase difference of π, it is incident
Become for left-hand polarization light after right-handed polarized light reflection.The left-hand polarization light is attached by the first quarter-wave plate 231
The phase of 1/4 wavelength, is modulated to second linearly polarized light of the polarization direction along y-axis, and then the second linearly polarized light is passed through in lens 21
Certain deviation is crossed, is reflected towards the one side 2212 for being coated with polarization beam splitter of image generation unit 1 by lens 21, now anti-
Generation is penetrated on the interface of optically denser medium to optically thinner medium, there is no additive phase.Then target light third time is by the one or four
/ mono- wave plate 231, is modulated to the second left-hand polarization light.The second left-hand polarization light propagates across forward spectroscope 2221 afterwards
Linearly polarized light of the polarization direction along y-axis, this polarization state and the second polarizer 241 are modulated to the second quarter-wave plate 232
Printing opacity direction be consistent, can normally outgoing, received by human eye.
First polarizer 251 and the second polarizer 241 of the present embodiment are linear polarizer and the He of the first polarizer 251
The printing opacity direction of principal axis of the second polarizer 241 is vertical, such that it is able to realize the selectivity to the light for passing through.
The fast axle of the first quarter-wave plate 231 is 45 ° with the angle of the printing opacity direction of principal axis of the first polarizer 251.Second
The fast axle of quarter-wave plate 232 is vertical with the fast axle of the first quarter-wave plate 231, i.e. the second quarter-wave plate 231
Fast axle is -45 ° with the light transmission shaft angular separation of the first polarizer 251.Additionally, spectroscope 2221 is primarily served being carried out instead to light
Penetrate and transmission effect, do not change polarization of light state.So as to by setting the first polarizer 251, the first quarter-wave plate
231st, the second quarter-wave plate 232 and the second polarizer 241 realize the transmission to specific light.
In the present embodiment, the first polarizer 251, the first quarter-wave plate 231, spectroscope the 2221, the 2nd 4/
One wave plate 232 and the second polarizer 241 can be planar structure, or curved-surface structure, be carried out according to specific display requirement
Specific design.
By the first polarizer 251, lens 21, the first quarter-wave plate 231, spectroscope 2221, the second quarter-wave
The polarizer 241 of piece 232 and second attaches form contact lenses successively.
Contact lenses formula optical system of the invention is further described below by design parameter.
Optical system as shown in Figure 1, the angle of visual field is 90 °, and emergent pupil size is 15mm, and away from being 15mm, overall length (is included emergent pupil
Emergent pupil away from) be about 40mm, image height is about 40mm.The preceding surface of lens 13 is sphere, and radius of curvature is 115.165mm；Thoroughly
The rear surface of mirror 13 is even aspheric surface, and radius of curvature is -135.322mm, and Conic coefficients are 4.749, and lens center thickness is
10mm, material is PMMA.First polarizer 11, polarization spectro piece 12, the first quarter-wave plate 14, spectroscope the 15, the 2nd 4
/ mono- wave plate 16 and the laminating of the second polarizer 17 are placed.Because the volume of head-mounted display of the invention is worn less than existing
The volume of display, so frame eyeglasses form can be made worn, it is lightweight, it is convenient for carrying, wear comfort is high.
The image quality evaluation result of contact lenses formula optical system is as shown in Figure 4 and Figure 5 in the present embodiment.As can be known from Fig. 4,
The disc of confusion radius of the peripheral field of optical system is about 100 μm in the present embodiment, the disc of confusion radius ratio of non-edge visual field compared with
It is moderate.As can be known from Fig. 5, the distortion of the peripheral field of optical system is 25% in the present embodiment, although distortion is excessive, to institute
State image generation unit 1 display image carry out predistortion correction process after, image seen by person is substantially undistorted.
Fig. 6 is the overall structure figure of the head-mounted display described in one embodiment of the invention.As shown in fig. 6, image is generated
Although unit 1 is an entirety, left and right two parts are divided into, correspond respectively to the first contact lenses formula light in left and right eye
System 2A and the second contact lenses formula optical system 2B, the first contact lenses formula optical system 2A and the second contact lenses formula light
System 2B is contact lenses formula optical system of the present invention.Two parts image of the display of image generation unit 1 is carried
Certain parallax.
Fig. 7 is the overall structure figure of the head-mounted display described in another embodiment of the present invention.As shown in fig. 7, image is given birth to
Include left and right two displays 1A and 1B into unit 1, left and right two display 1A and 1B are separately fixed at frame or so mirror
On the position of piece, the first contact lenses formula optical system 2A and the second contact lenses formula optics in left and right eye are corresponded respectively to
System 2B, the first contact lenses formula optical system 2A and the second contact lenses formula optical system 2B are stealth of the present invention
Spectacle optical system.Left and right two the display 1A and 1B of image generation unit 1 show the corresponding image with parallax.
The different display portion 1A in the left and right of image generation unit 1 is with the image that 1B shows is with parallax and left and right is different
Display portion 1A it is different with the direction of vibration that 1B sends light, contact lenses formula optical system 2 receive simultaneously from image generation
The image optical information of the left and right of unit 1 different display portion 1A and 1B, contact lenses formula optical system 2 or so eyeglass 2A and 2B
On polarization filter 24 direction of vibration of the polarizing axis respectively with the polarised light of corresponding display portion it is parallel, therefore correspondence is aobvious
Show that the image optical information of part is stopped by corresponding eyeglass and by another eyeglass, prevent picture crosstalk.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (18)
1. a kind of contact lenses formula optical system, between image generation unit and human eye, it is characterised in that the contact lenses
Formula optical system includes：
Lens, the image optical information for being generated to image generation unit forms predetermined focal length；
Spectrum groupware, comes and goes repeatedly by after lens for the target light in the image optical information for making image generation unit generation
Into picture receiver, including the first optical splitter and the second optical splitter, the first optical splitter be located at lens and image generation unit it
Between, the second optical splitter is located between lens and human eye；
Quarter-wave plate component, for increasing quarter-wave phase to transmitted light；And
Polarization filter, image-receptive is entered for the spurious rays in the image optical information for stopping image generation unit generation
Device,
Wherein, lens, spectrum groupware, quarter-wave plate component and polarization filter fit together to form contact lenses.
2. contact lenses formula optical system according to claim 1, it is characterised in that the first optical splitter has for transmission
The light of light and reflection with second polarization state orthogonal with the first polarization state of the first polarization state.
3. contact lenses formula optical system according to claim 2, it is characterised in that the first optical splitter is lens near figure
As generation unit side is coated with the surface of polarization beam splitter or the polarization spectro between lens and image generation unit
Piece.
4. contact lenses formula optical system according to claim 1, it is characterised in that the second optical splitter is used for incident
Light transmits a portion and reflection remainder.
5. contact lenses formula optical system according to claim 4, it is characterised in that the second optical splitter is spectroscope.
6. contact lenses formula optical system according to claim 1, it is characterised in that the image of image generation unit generation
Optical information is polarised light, or the optical system also include be attached to the first optical splitter towards image generation unit one side on it is inclined
Shake shaper, for retaining the linearly polarized light parallel with its light transmission shaft.
7. contact lenses formula optical system according to claim 6, it is characterised in that polarization shaper is polarizer.
8. contact lenses formula optical system according to claim 7, it is characterised in that as the polarizer of polarization shaper
The polarised light that sends of light transmission shaft and image generation unit or the image generation unit light that sends formed through first time polarization
The polarization direction of polarised light is vertical.
9. contact lenses formula optical system according to claim 1, it is characterised in that quarter-wave plate component includes position
The first quarter-wave plate between lens and the second optical splitter and between the second optical splitter and polarization filter
Two quarter-wave plates.
10. contact lenses formula optical system according to claim 9, it is characterised in that the first quarter-wave plate it is fast
The polarised light that the light that the polarised light or image generation unit that axle sends with image generation unit send is formed through first time polarization
Polarization direction angle be 45 °.
The 11. contact lenses formula optical system according to claim 9 or 10, it is characterised in that the second quarter-wave plate
Fast axle it is vertical with the fast axle of the first quarter-wave plate.
12. contact lenses formula optical systems according to claim 1, it is characterised in that polarization filter is polarizer.
13. contact lenses formula optical systems according to claim 1, it is characterised in that lens are simple lens or multiple
The lens group of lens gluing.
14. contact lenses formula optical systems according to claim 1, it is characterised in that lens two sides type is respectively flat
Face, sphere, extension double cubic surface or free form surface in any one.
15. a kind of head-mounted displays, it is characterised in that including the contact lenses formula optical system described in any of the above-described claim
System and the image generation unit with it in same optical axis.
16. head-mounted displays as claimed in claim 15, it is characterised in that the head-mounted display global shape is frame eyeglasses
Shape.
17. head-mounted display as described in claim 15 or 16, it is characterised in that image generation unit is integral type display
And including left and right two parts, or including two displays in left and right.
18. head-mounted displays as claimed in claim 17, it is characterised in that left and right two parts of image generation unit or left and right
There is parallax between the image that two displays show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154265.2A CN106707510A (en) | 2016-12-14 | 2016-12-14 | Contact lens type optical system and head-mounted display equipped with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611154265.2A CN106707510A (en) | 2016-12-14 | 2016-12-14 | Contact lens type optical system and head-mounted display equipped with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707510A true CN106707510A (en) | 2017-05-24 |
Family
ID=58935843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611154265.2A Pending CN106707510A (en) | 2016-12-14 | 2016-12-14 | Contact lens type optical system and head-mounted display equipped with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707510A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024773A (en) * | 2017-06-02 | 2017-08-08 | 北京耐德佳显示技术有限公司 | A kind of light and thin type virtual image forming device |
| CN108897137A (en) * | 2018-09-10 | 2018-11-27 | 深圳多哚新技术有限责任公司 | A kind of helmet |
| WO2020042576A1 (en) * | 2018-08-31 | 2020-03-05 | 华为技术有限公司 | Optical imaging system |
| CN111433656A (en) * | 2017-12-19 | 2020-07-17 | 深圳市柔宇科技有限公司 | Optical system and near-to-eye display device |
| CN112596240A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN112596238A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN113050275A (en) * | 2019-12-27 | 2021-06-29 | 宏碁股份有限公司 | Near-to-eye display device |
| CN113219665A (en) * | 2021-04-30 | 2021-08-06 | 歌尔股份有限公司 | Optical lens group, optical system and head-mounted display device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08327940A (en) * | 1994-12-19 | 1996-12-13 | Sharp Corp | Optical device and head-mounted display formed by using this optical device |
| US5966242A (en) * | 1996-04-24 | 1999-10-12 | Sharp Kabushiki Kaisha | Optical device and HMD using said optical device |
| EP1096293A2 (en) * | 1999-10-26 | 2001-05-02 | Agilent Technologies Inc | Folded optical system adapted for head-mounted displays |
| CN1316063A (en) * | 1999-07-02 | 2001-10-03 | 皇家菲利浦电子有限公司 | Head-mounted display |
| CN1930511A (en) * | 2003-11-26 | 2007-03-14 | 吕勒公司 | Collimating optical member for real world simulation |
| US20100053030A1 (en) * | 2008-09-04 | 2010-03-04 | Sprague Randall B | Method and apparatus to process display and non-display information |
| CN103942019A (en) * | 2013-01-21 | 2014-07-23 | 索尼公司 | Image display device and image display method |
| CN104483755A (en) * | 2014-12-29 | 2015-04-01 | 蓝景恒 | Head-mounted displayer and achievement method thereof |
| CN104813218A (en) * | 2012-09-11 | 2015-07-29 | 奇跃公司 | Ergonomic head mounted display device and optical system |
| US20150362734A1 (en) * | 2013-01-28 | 2015-12-17 | Ecole Polytechnique Federale De Lausanne (Epfl) | Transflective holographic film for head worn display |
| CN105467615A (en) * | 2014-09-26 | 2016-04-06 | 三星电子株式会社 | Smart contact lenses for augmented reality and methods of manufacturing and operating the same |
| CN206321883U (en) * | 2016-12-14 | 2017-07-11 | 浙江舜通智能科技有限公司 | The optical system of contact lenses formula and the head-mounted display for assembling the optical system |
-
2016
- 2016-12-14 CN CN201611154265.2A patent/CN106707510A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08327940A (en) * | 1994-12-19 | 1996-12-13 | Sharp Corp | Optical device and head-mounted display formed by using this optical device |
| US6304303B1 (en) * | 1994-12-19 | 2001-10-16 | Sharp Kabushiki Kaisha | Optical device and head-mounted display using said optical device |
| US5966242A (en) * | 1996-04-24 | 1999-10-12 | Sharp Kabushiki Kaisha | Optical device and HMD using said optical device |
| CN1316063A (en) * | 1999-07-02 | 2001-10-03 | 皇家菲利浦电子有限公司 | Head-mounted display |
| EP1096293A2 (en) * | 1999-10-26 | 2001-05-02 | Agilent Technologies Inc | Folded optical system adapted for head-mounted displays |
| CN1930511A (en) * | 2003-11-26 | 2007-03-14 | 吕勒公司 | Collimating optical member for real world simulation |
| US20100053030A1 (en) * | 2008-09-04 | 2010-03-04 | Sprague Randall B | Method and apparatus to process display and non-display information |
| CN104813218A (en) * | 2012-09-11 | 2015-07-29 | 奇跃公司 | Ergonomic head mounted display device and optical system |
| CN103942019A (en) * | 2013-01-21 | 2014-07-23 | 索尼公司 | Image display device and image display method |
| US20150362734A1 (en) * | 2013-01-28 | 2015-12-17 | Ecole Polytechnique Federale De Lausanne (Epfl) | Transflective holographic film for head worn display |
| CN105467615A (en) * | 2014-09-26 | 2016-04-06 | 三星电子株式会社 | Smart contact lenses for augmented reality and methods of manufacturing and operating the same |
| CN104483755A (en) * | 2014-12-29 | 2015-04-01 | 蓝景恒 | Head-mounted displayer and achievement method thereof |
| CN206321883U (en) * | 2016-12-14 | 2017-07-11 | 浙江舜通智能科技有限公司 | The optical system of contact lenses formula and the head-mounted display for assembling the optical system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024773A (en) * | 2017-06-02 | 2017-08-08 | 北京耐德佳显示技术有限公司 | A kind of light and thin type virtual image forming device |
| CN107024773B (en) * | 2017-06-02 | 2023-12-19 | 北京耐德佳显示技术有限公司 | Light and thin virtual image imaging device |
| CN111433656A (en) * | 2017-12-19 | 2020-07-17 | 深圳市柔宇科技有限公司 | Optical system and near-to-eye display device |
| WO2020042576A1 (en) * | 2018-08-31 | 2020-03-05 | 华为技术有限公司 | Optical imaging system |
| CN108897137A (en) * | 2018-09-10 | 2018-11-27 | 深圳多哚新技术有限责任公司 | A kind of helmet |
| CN113050275A (en) * | 2019-12-27 | 2021-06-29 | 宏碁股份有限公司 | Near-to-eye display device |
| CN112596240A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN112596238A (en) * | 2020-12-21 | 2021-04-02 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| WO2022135106A1 (en) * | 2020-12-21 | 2022-06-30 | 歌尔股份有限公司 | Imaging light path and head-mounted display device |
| CN112596238B (en) * | 2020-12-21 | 2022-09-20 | 歌尔光学科技有限公司 | Imaging optical path and head-mounted display device |
| CN113219665A (en) * | 2021-04-30 | 2021-08-06 | 歌尔股份有限公司 | Optical lens group, optical system and head-mounted display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11042040B2 (en) | Augmented reality apparatus and optical system therefor | |
| CN106707510A (en) | Contact lens type optical system and head-mounted display equipped with same | |
| CN110603477A (en) | Wearable AR system and AR display device | |
| US5886822A (en) | Image combining system for eyeglasses and face masks | |
| US8079713B2 (en) | Near eye display system | |
| CN107111132A (en) | The compact wear-type display system protected by hyperfine structure | |
| CN106444046A (en) | Optical system and head-mounted display device provided with optical system | |
| CN206321882U (en) | A kind of optical system and the head-mounted display apparatus for assembling the optical system | |
| CN206321883U (en) | The optical system of contact lenses formula and the head-mounted display for assembling the optical system | |
| CN214751111U (en) | Ultra-short distance ocular lens system | |
| CN210776039U (en) | Miniaturized short-distance optical system | |
| EP1808722A2 (en) | Image Combining System for Eyeglasses and Face Masks | |
| CN210776034U (en) | Short-distance optical system | |
| CN116974082A (en) | Near-to-eye display optical device with adjustable diopter | |
| CN116449566A (en) | Near-to-eye display module and head-mounted display device | |
| CN216210238U (en) | Optical module and near-to-eye display optical system | |
| CN116027532A (en) | Short-focus folded back projection system and near-eye display device | |
| CN115657310A (en) | Near-to-eye display module and head-mounted display equipment | |
| CN112505920A (en) | Miniaturized short-distance optical system | |
| CN218413066U (en) | Optical module and head-mounted display equipment | |
| US20230324669A1 (en) | Reflective hollow singlet folded optical lens structure | |
| US20230333382A1 (en) | Optical assembly for a head-mount display (hmd) device | |
| CN117471694A (en) | Augmented reality optical device with large field angle | |
| CN114967135A (en) | Ultra-short distance ocular lens system | |
| TW202405504A (en) | Reflective hollow singlet folded optical lens structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
|
| RJ01 | Rejection of invention patent application after publication |