CN105629478B - Visual optical imaging device and the binocular near-eye display for using it - Google Patents
Visual optical imaging device and the binocular near-eye display for using it Download PDFInfo
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- 230000000007 visual effect Effects 0.000 title claims abstract description 39
- 238000012634 optical imaging Methods 0.000 title claims abstract description 37
- 230000003287 optical effect Effects 0.000 claims abstract description 89
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- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
-
- 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
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
-
- 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
- G02B2027/0178—Eyeglass type
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Abstract
The present invention relates to a kind of visual optical imaging device and use its ultra thin optical transmission-type near-eye display, near-eye display is placed by the identical visual optical imaging device bilateral symmetry in left and right two and is composed, each visual optical imaging device includes a free form surface waveguide component and Projection optics, Projection optics are used to project the image light signals that image source element issues the light incident surface of free form surface waveguide component, light is propagated by total reflection condition to emergent pupil direction in free form surface waveguide component, reach the glasses for entering user after being unsatisfactory for total internal reflection condition after by exit face, simultaneously transmission direction light can also regular transmission be directly entered human eye, to which the ultra-thin nearly eye realized is shown.
Description
Technical field
It is special the present invention relates to a kind of visual optical imaging device and using its ultra thin optical transmission-type near-eye display
It is other, it is related to a kind of ultra-thin visually displaying that technology for what free form surface was combined with waveguide component.
Background technique
Consumption electronic product has obtained vigorous growth in recent years, and after smart phone, consumer generally knows
The concept of road virtual reality (virtual reality) and augmented reality (augmented reality), and chase relevant each
Trial of the conception of species product as experience new technology.In the field VR, the companies such as Samsung, Sony, Oculus, HTC are made
Product, the VR display device for having provided the consumer with by smart phone or independently having used；And in the field AR, Google,
The product of the companies such as Microsoft also rests on conceptual product development and shows stage, commercially available limited amount.It is above-mentioned this
In a little products, in addition to the Hololens of Microsoft, mostly use the scheme of non-optical transmission-type greatly, i.e., user when in use with
Real world isolates, or is only capable of the single eyes individually for user, causes visible angle small, affects the vision body of user
It tests.Meanwhile in order to pursue feeling of immersion, most of existing VR product be located at the optical element of user at the moment have biggish thickness and
It is closed in eye circumference, when wearing even needs Weighting system to carry out counterpoise, has aggravated the burden of user's head, cannot achieve light
The binocular near-eye of thin Light Transmission is shown.
In order to realize the nearly eye displaying scheme of ultra thin optical transmission-type, some designs introduce free curved surface prism element,
By catadioptric optical path add compensating prism in the way of realize optical transmission, but reach the needs of curvature in view of free curved surface prism,
In the case where reaching good visual experience, the thickness of the optical system of this scheme cannot be accomplished very frivolous, limit double
The nearly eye of mesh is shown further lightening；And other design then uses planar optical waveguide scheme, using light in plane wave
Total internal reflection in guiding element effectively reduces the thickness of optical element, but slab guide element can not provide focal power, needs
Complicated optical projection system is cooperated to use.
Summary of the invention
The present invention is intended to provide a kind of visual optical imaging device, also, by two identical visual optical imaging devices
Bilateral symmetry is placed, and be can be realized ultra-thin Light Transmission binocular near-eye display, is applicable to the various applications of VR and AR
Scene.
A kind of visual optical imaging device according to the present invention, comprising: free form surface waveguide component and Projection optics,
Wherein, Projection optics are used to project the image light signals that image source element issues the light incidence of free form surface waveguide component
Face, the light incident surface are plane；The free form surface waveguide component is formed by two parts gluing, and wherein first part includes four
A optical surface, first and third optical surface be free form surface, second and the 4th optical surface be the plane being parallel to each other, and and optics
The emergent pupil of imaging device is parallel.
Specifically, the second part of the free form surface waveguide component includes three optical surfaces, wherein the five, the six optical surfaces
The plane of extension is integrally formed with above-mentioned second, the 4th optical surface for the plane being parallel to each other and after described two parts are glued,
7th optics is free form surface, and the angle of the 7th optical surface and the 5th optical surface is greater than 22 ° less than 33 °；7th optical surface is glue
It is used behind conjunction face, with the third optical surface gluing of first part.
In order to improve light utilization efficiency, first optical surface is coated with reflective coating, third optical surface be coated with reflective coating or
Half-reflection and half-transmission optical film layer.
Further, described first and three the angle of optical surface and the 4th optical surface be greater than 25 ° less than 38 °；
The distance of exit pupil of the visual optical imaging device reaches 15mm or more.
According to an embodiment of the present, the Projection optics include four optical lenses, what is advanced along light
It is arranged successively on optical axis direction, wherein first and third lens is non-spherical lens, material is optical resin；The second, four lens
For spherical lens, material is optical glass.The optical axis of the Projection optics and the light of the free form surface waveguide component enter
It is vertical to penetrate face；Or the light incident surface out of plumb of the optical axis of the Projection optics and the free form surface waveguide component, and
The vertical direction of the optical axis of the Projection optics and the light incident surface is in the inclination angle within about 20 degree.
The invention also includes a kind of nearly eye display devices with pair of right and left visual optical imaging device as above, are used
Image source element can be LCD, OLED or LCOS type Micro display element.Preferably, Micro display element is dismountable.
Visual optical imaging device and ultra thin optical transmission-type binocular near-eye display according to the present invention has frivolous
Optical texture, visible angle is big, and the nearly eye that binocular solid may be implemented is shown；Free form surface waveguide component and projecting lens can be adopted
Batch production is carried out with the mode of die cast and processing cost is lower；As the display device of Light Transmission, observation is virtual
Its observation to extraneous real scene is not influenced while scene；System distance of exit pupil is big, can be in free form surface waveguide component
Dispose vision correction lens to meet the demand for the user for needing wearing corrective lenses between eyes of user；Projection optics
And the distance between Micro display element and system exit pupil position are suitable for being placed in Projection optics and Micro display element
In the temple of glasses, the wear comfort of near-eye display device is improved.
Detailed description of the invention
Fig. 1 is the visual optical imaging device index path for binocular near-eye display according to first embodiment of the invention
Fig. 2 is the left side visual optical imaging device index path according to first embodiment of the invention
Fig. 3 is according to the free form surface waveguide component structure chart in first embodiment of the invention
Fig. 4 is the visual optical imaging device index path for binocular near-eye display according to second embodiment of the invention
Fig. 5 is the visual optical imaging device index path for binocular near-eye display according to third embodiment of the invention
Fig. 6 is the system block diagram that near-eye display according to the present invention is electrically connected after peripheral device
Fig. 7 is ultra thin optical transmission-type near-eye display schematic diagram according to the present invention
Specific embodiment
Specific implementation of the invention is specifically described with reference to the accompanying drawings below, the present invention can be with a variety of different shapes
Following each embodiments is realized and be should not be construed as limited by formula, but, these embodiments are provided so that the disclosure sufficiently and
Completely, and to those skilled in the art design of the invention is comprehensively conveyed.
First embodiment
As shown in Figure 1-3, dress is imaged in the visual optical for binocular near-eye display according to a first embodiment of the present invention
It sets including controlling two sets of visual optical imaging devices, the binocular near-eye display of first embodiment of the invention is shown in Fig. 1
Index path is embodied with the sectional view of the near-eye display, since two sets of visual optical imaging devices are in about central axis 1O
It is symmetrical, it will be to specifically describe object description specific reality of the invention with the visual optical imaging device in left side hereinafter
Scheme is applied, is similarly constructed it will be understood by those skilled in the art that the visual optical imaging device on right side has with left side, only
Left and right reversion.
As described in Figure 2, the left side visual optical imaging device of first embodiment of the invention includes free form surface waveguide component
11L and Projection optics 12L, Micro display element 13L are placed in the object side of Projection optics 12L, by Micro display element
The image light that 13L is issued is successively after each lens 121L, 122L, 123L, 124L of Projection optics 12L through free song
It is totally reflected inside the face 1114L incidence free form surface waveguide component 11L of surface wave guiding element 11L and on 1111L, light warp
It meets the total internal reflection condition of light after crossing 1111L reflection and is totally reflected between the face 1114L and face 1112L of waveguide component 11L
To complete to transmit, the total internal reflection condition of light is no longer met after light is incident on and instead gives birth to reflection on the 1113L of face, from face
1114L outgoing enters the eyes imaging of user.The environment light entered simultaneously from transmission direction passes through free form surface waveguide component
Face 1113L (or 1121L), 1113L and 1114L (or 1122L) transmission after aberrationless can be directly entered eyes imaging,
Realize that the nearly eye of Light Transmission is shown.
Specifically, as shown in figure 3, free form surface waveguide component 11L is by two parts 111L and 112L use glued together.
First part 111L include four optical surfaces 1111L, 1112L, 1113L and 1114L, wherein the first and third optical surface 1111L with
1113L is free form surface, and second, four optical surface 1112L and 1114L are plane.First and third optical surface 1111L and 1113L is coated with
Optical film layer, wherein face 1111L is coated with reflective coating, and face 1113L is coated with half-reflection and half-transmission optical film layer, and face 1113L can also be coated with
Reflective coating is to realize VR class application.The second, four optical surface 1112L and 1114L are parallel to each other, and with optical imaging device go out
Pupil is parallel, and the angle of first and third optical surface 1111L, 1113L and the 4th optical surface 1114L are greater than 25 ° less than 38 °.Third light
Face 1113L is cemented surface, with the 7th optical surface 1123L of second part 112L it is glued after use.Second part 112L includes
Three optical surfaces 1121L, 1122L and 1123L, wherein the five, the six optical surface 1121L, 1122L are plane, the 7th optics 1123L
For free form surface.Five, the six optical surface 1121L and 1122L are parallel to each other, the 7th optical surface 1123L and the 5th optical surface 1121L
Angle be greater than 22 ° less than 33 °.7th optical surface 1123L is cemented surface, the third optical surface 1113L with first part 111L
It is used after gluing.
In the first embodiment, Projection optics 12L is made of four optical mirror slips, wherein first, the third lens
121L and 123L front and rear surfaces 1211L, 1212L and 1231L, 1232L are aspherical；The second, before four lens 122L and 124L
Rear surface 1221L, 1222L and 1241L, 1242L are spherical surface.Contain aspherical lens and free form surface waveguide component 11L
Two-part material is all optical resin, and can be produced in batches by the way of die cast.
It is micro- that the Micro display element 13L as image source element in the present invention can be adapted to the high PPI such as LCD, OLED, LCOS
Type display element, and such display element can be used as modular installation and exist, when the generation of display element is realized more
When repeatedly, replacement can be realized as modular display element by disassembly, to make near-eye display of the invention can be with
Always state-of-the-art high PPI display element is used, realizes optimal visual effect.Micro display element 13L can be adapted to OLED,
LCOS, LCD etc., can be straight since its category is from the Micro display element of main light emission for the Micro display element of OLED class
It connects and is placed on object plane, and LCOS Micro display element belongs to non-autonomous luminescent micro display element, needs by PBS prism or PBS
Spectro-film.Image planes position and the Image display position of OLED Micro display element match in the present embodiment, can directly be applicable in；
The present embodiment can also be adapted to LCOS Micro display element, and image planes position needs and the miniature display member of LCOS after PBS prism is added
The Image display position of part is adjusted.
The visual optical imaging device on right side and left side be it is arranged symmetrically, each optical element 11R-14R is opposite with 11L-14L
Setting, and there is consistent effect.Left and right free form surface waveguide component 11L, 11R face human eye setting, with going out for optical system
Pupil is parallel.
For the convenient needs for manufacturing and installing, each free form surface waveguide component of the invention is also possible that other tables
Face, but usually do not have the effect of optical transmission or reflection in view of this kind of surface and carried out sanding etc. and handled, herein
It discusses not as the optical surface in the present invention.
It will be appreciated by those skilled in the art that, in the optical element 11L and 11R for facing eyes of user, it can be coated with and disappear
Except the protecting film of harmful light, to avoid the injury to human eyesight.When as Light Transmission near-eye display, light is penetrated
Reflectivity can be adjusted by the reflectivity of be coated with membrane system on adjusting face 1113L and 1113R to adapt under different scenes
Use demand.
Each optical surface parameter according to a first embodiment of the present invention can be indicated that table 1-2 is that two XY are multinomial by the following table 1-1
Formula free form surface surface coefficient, table 1-3 are four non-spherical surface coefficients:
Table 1-1
| Parameter | Face 1113L | Face 1111L |
| R | 83.32977671 | 39.27173711 |
| K | 0 | 0 |
| C10 | 0.0000E+00 | 0.0000E+00 |
| C01 | 0.00276936388 | 0.00440282022 |
| C20 | 0.00025808900 | -0.0744678536 |
| C11 | 0.0000E+00 | 0.0000E+00 |
| C02 | -0.00031729657 | -0.0002160335 |
| C30 | 0.0000E+00 | 0.0000E+00 |
| C21 | -4.051957438e-005 | -0.0023706414 |
| C12 | 0.0000E+00 | 0.0000E+00 |
| C03 | 1.0338598228e-005 | -1.30628048e-005 |
| C40 | 4.8903552421e-006 | -4.738576122 |
| C31 | 0.0000E+00 | 0.0000E+00 |
| C22 | 4.0895832451e-006 | -0.0001849847 |
| C13 | 0.0000E+00 | 0.0000E+00 |
| C04 | -5.988113261e-007 | -1.05384340e-006 |
Table 1-2
The XY polynomial free curved surface equation of the description free form surface are as follows:
Wherein R is the radius of curvature in each face, and x, y, z is the coordinate put on curved surface, and K is the quadratic coefficients of curved surface, C(m,n)
For corresponding Polynomial Terms XmYnCoefficient.
| Parameter | Face 2232L | Face 2231L | Face 2212L | Face 2211L |
| R | -15.8523659 | -8.03834413 | 9.36948983 | 91.83300365 |
| K | 0 | 0 | 0 | 0 |
| A | 6.1944861e-006 | 3.0202941e-006 | -8.07925198e-006 | 1.167414481e-005 |
| B | 1.9931786e-006 | -2.6057485e-007 | -2.86341594e-007 | 3.509645578e-007 |
| C | 2.2871660e-007 | -2.9283357e-008 | -8.87275656e-009 | 1.016122554e-008 |
Table 1-3
The non-spherical surface equation are as follows:
Wherein R is the radius of curvature in each face, and h is the point on curved surface with a distance from optical axis, and K is the quadratic coefficients of curved surface,
A, B, C ... are the high order aspheric surface coefficient of curved surface
Second embodiment
Similar with first embodiment, the second embodiment of the present invention is as shown in figure 4, also include symmetrical two sets visual
Optical imaging device is still illustrated by taking left side as an example below.Left side visual optical according to a second embodiment of the present invention at
As device includes free form surface waveguide component 21L and Projection optics 22L, Micro display element 23L is placed in projection optics group
The object side of part 22L.The image light signals issued by Micro display element 23L successively pass through each of Projection optics 22L
Face 2114L through free form surface waveguide component 21L after mirror 221L, 222L, 223L, 224L enters inside waveguide component and is incident on
It on the 2111L of face and reflects, light meets the total internal reflection condition of light in face 2114L and face into after crossing 2111L reflection
Total reflection no longer meets the complete interior anti-of light until light is incident on the 2113L of face to complete to transmit between 2112L after anti-raw reflection
Condition is penetrated, 2114L outgoing enters the eyes imaging of user in face.The light that environment light passes through as transmission direction simultaneously, by certainly
By curved surface waveguide component face 2113L (or 2121L), 2113L and 2114L (or 2122L) transmission after be directly entered human eye into
The aberrationless imaging of row, realizes that the nearly eye of Light Transmission is shown.
Different from the first embodiment Projection optics 22L (and the corresponding miniature display in second embodiment
Element 23L) there are certain inclination bias, the i.e. optical axis and freedom of Projection optics 22L with free form surface waveguide component 21L
The light incident surface 2114L out of plumb of curved surface waveguide component 21L, may be at relative to upright position inclination angle less than 20 degree
Range.
Each optical surface parameter according to a second embodiment of the present invention can be indicated that table 2-2 is that two XY are multinomial by the following table 2-1
Formula free form surface surface coefficient, table 2-3 are four non-spherical surface coefficients:
Table 2-1
| Parameter | Face 2113L | Face 2111L |
| R | 79.756975 | 211.04223 |
| K | 0.0000E+00 | 0.0000E+00 |
| C10 | 0.0000E+00 | 0.0000E+00 |
| C01 | 0.001150953 | 0.055875073 |
| C20 | 0.00046609 | -0.735387283 |
| C11 | 0.0000E+00 | 0.0000E+00 |
| C02 | -0.000479994 | -0.001393034 |
| C30 | 0.0000E+00 | 0.0000E+00 |
| C21 | -3.91E-05 | -0.143355847 |
| C12 | 0.0000E+00 | 0.0000E+00 |
| C03 | -3.16E-06 | -0.00022476 |
| C40 | -9.85E-08 | -5.75E-02 |
| C31 | 0.0000E+00 | 0.0000E+00 |
| C22 | 3.38E-07 | 0.019705615 |
| C13 | 0.0000E+00 | 0.0000E+00 |
| C04 | -1.03E-06 | 9.31E-06 |
Table 2-2
| Parameter | Face 2232L | Face 2231L | Face 2212L | Face 2211L |
| R | 18.93574 | -32.86509 | -27.20327 | -9.739446 |
| K | 0 | 0 | 0 | 0 |
| A | -0.0002169054 | 0.00022421837 | -8.21707335e-007 | -1.28130870e-005 |
| B | -1.7976035e-006 | -1.7635031e-006 | -5.75237331e-007 | 6.794475404e-008 |
| C | 3.6160017e-009 | 1.2026919e-007 | -3.01764067e-008 | 1.32734647e-008 |
Table 2-3
3rd embodiment
It is similar with the first and second embodiment, the third embodiment of the present invention as shown in figure 5, illustrate by taking left side as an example, including from
By curved surface waveguide component 31L and Projection optics 32L, Micro display element 33L is placed in the object side of Projection optics 32L.
Micro display element 33L issue image light signals successively pass through Projection optics 32L each lens 321L, 322L,
Face 3114L through free form surface waveguide component 31L after 323L, 324L enters inside waveguide component and is incident on the 3111L of face simultaneously
It reflects, light is totally reflected between face 3114L and face 3112L into the total internal reflection condition for meeting light is crossed after 3111L reflection
To complete transmission, the total internal reflection condition of light is no longer met after light is incident on and instead gives birth to reflection on the 3113L of face, in face
Outgoing enters eyes imaging on 3114L.Simultaneously transmission direction light by free form surface waveguide component face 3113L (or
3121L), it is directly entered eyes imaging after 3113L and 3114L (or 3122L) transmission, realizes that the nearly eye of Light Transmission is aobvious
Show.
Unlike second embodiment, the Micro display element 33L in 3rd embodiment uses the miniature display mould of LCOS
Group.LCOS micro display chip 333L is non-spontaneous light display device, needs extraneous offer illumination, and illumination light holds up the light of 331L sending
Line is radiated on LCOS display chip 333L after the PBS light splitting surface 3322L of PBS prism 332L reflection and provides illumination for it,
The light that LCOS chip 333L is issued enters Projection optics 32L after the PBS light splitting surface 3322L of PBS prism 332L transmission
It is normally shown with after free form surface waveguide component 31L.As the first and second embodiment, 3rd embodiment can also be adapted to OLED
Miniature display chip, it is only necessary to which suitable adjustment is carried out to image planes position.
Each optical surface parameter according to a third embodiment of the present invention can be indicated that table 3-2 is that two XY are multinomial by the following table 3-1
Formula free form surface surface coefficient, table 3-3 are four non-spherical surface coefficients:
Table 3-1
| Parameter | Face 3113L | Face 3111L |
| R | 83.096106 | 44.340676 |
| K | 0 | 0 |
| C10 | 0.0000E+00 | 0.0000E+00 |
| C01 | 0.001283509770 | 0.0691526785 |
| C20 | 0.000466992757 | -0.75765737668 |
| C11 | 0.0000E+00 | 0.0000E+00 |
| C02 | -0.00048563044 | -0.0001231618 |
| C30 | 0.0000E+00 | 0.0000E+00 |
| C21 | -3.812202188e-005 | -0.1392280286 |
| C12 | 0.0000E+00 | 0.0000E+00 |
| C03 | -1.441677017e-005 | -0.0002172178 |
| C40 | 1.975437465e-008 | -0.3226534488 |
| C31 | 0.0000E+00 | 0.0000E+00 |
| C22 | 5.128982846e-007 | 0.01827871570 |
| C13 | 0.0000E+00 | 0.0000E+00 |
| C04 | -1.174839491e-006 | 2.04575351e-006 |
Table 3-2
| Parameter | Face 3232L | Face 3231L | Face 3212L | Face 3211L |
| R | 13.302271 | -86.10613 | -117.8553 | -10.59705 |
| K | 0 | 0 | 0 | 0 |
| A | -0.00021188616 | 0.0002113978236 | -0.000248163750 | -2.222489747e-005 |
| B | -1.9791387e-006 | -3.0079293e-006 | -8.54328052e-006 | -1.80171044e-006 |
| C | 9.6072442e-009 | 6.62613152e-008 | 2.15544291e-007 | -1.587600560e-007 |
Table 3-3
The first to three embodiment according to the present invention, field of view angle, exit pupil diameter, distance of exit pupil and free form surface waveguide member
The thickness D of part can indicate by table 4-1,
| First embodiment | Second embodiment | 3rd embodiment | |
| Field of view angle (horizontal × vertical) | 22×16.5° | 22×16.5° | 22×16.5° |
| Exit pupil diameter | 10mm | 10mm | 10mm |
| Distance of exit pupil | 16mm | 16mm | 16mm |
| Thickness D | 8mm | 8mm | 8mm |
Table 4-1
Since the free form surface waveguide component thickness D in the present invention can be effectively controlled within 8mm, to realize
The binocular near-eye display of ultrathin type, and can reach 15mm or more in view of effective distance of exit pupil, there is diopter for eyes
User, can be disposed between free form surface waveguide component and eyes correcting lens 14L (24L, 34L) with meet use want
It asks.
In above-mentioned the first to three embodiment of the invention, Projection optics include four optical lenses, along light
It is arranged successively on the optical axis direction of traveling, it is preferred that first and third lens is non-spherical lens, and material is optical resin；The
Two, four lens are spherical lens, are made using optical glass；And further, the front and back two of first and third lens
Surface is all aspherical.But Projection optics of the invention are without being limited thereto, it will be appreciated by those skilled in the art that, using not
The other Projection optics structure types for being same as four optical lenses also can satisfy needs of the invention, for example, with first-class
The free curved surface prism of effect is as Projection optics, or using more multi-disc optical lens to realize smaller aberration.
For near-eye display of the invention when specifically used, Micro display element is as image display device, controller,
Image file memory, power supply etc. can be placed in peripheral device, as shown in fig. 6, peripheral device is micro- by being electrically connected to
Type display element is shown the image on Micro display element is powered and controlled to Micro display element.
Further, peripheral device may also include user interface and communication interface, to receive user instructions and and its
He communicates equipment.Under a kind of form, peripheral device can be such as PC, tablet computer, the universal meter such as smart phone
Equipment is calculated, various function and applications thereon are used equally for display device of the invention to be shown.By taking smart phone as an example,
Including such as general processor, include applying and the memory of non-volatile memories, processor can realize communication and any number
The application of amount is simultaneously used as controller.Memory may include non-volatile and volatile memory classes of semiconductors memory
Part.The function of user interface may be implemented in user interface for operation, and communication interface such as wireless communication interface WIFI is blue
Tooth, NFC etc. and various known limited communication interfaces, can be communicated with other equipment, receive the data from other equipment
Information.
Under another form, the components such as dedicated controller and memory are can be used in peripheral device, better to realize
Display performance simultaneously develops personalized function, such as various industrial applications.Also, it is utilized in view of binocular near-eye display of the invention
Two Micro display elements can support 3D display respectively as left and right image source element.
It is placed using two identical visual optical imaging device bilateral symmetries and realizes ultra-thin Light Transmission binocular
Near-eye display, the glasses shape that shape can be as shown in Figure 7, to be easily installed fixation, the free form surface waveguide of the left and right sides
Element can be formed as one, and middle part is provided with the nose support portion of user's bridge of the nose, and nose support portion may include common software in glasses
Material, to improve wear comfort.And Projection optics and Micro display element are then placed in the temple of glasses, make entirety
The brief easy protection of appearance, temple can use the width of gradual change, in the connection wider width to cover waveguide in waveguide component side
Then degree gradually reduces width until being properly worn on the bending of user ear.
The near-eye display that visual optical imaging device according to the present invention is realized is based on free form surface waveguide component, whole
Structure is frivolous；When near-eye display of the invention has the shape of glasses and is worn on user head, two sides projection optics
Component and Micro display element can be placed on temple, make stress at the bridge of the nose substantially to lower wearing, for real existing design sense, be worn
It wears comfortable product appearance and provides advantageous condition.
The above is only the embodiment of the present invention, is not made any form of restriction to structure of the invention.
Any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention, still belong to
In the range of technical solution of the present invention.
Claims (10)
1. a kind of visual optical imaging device, comprising: free form surface waveguide component and Projection optics, wherein projection optics
Component is used to project the image light signals that image source element issues the light incident surface of free form surface waveguide component, and the light is incident
Face is plane；The free form surface waveguide component is formed by two parts gluing, and wherein first part includes four optical surfaces
(1111L, 1112L, 1113L and 1114L), first and third optical surface be free form surface, second and the 4th optical surface be mutual
Parallel plane, and parallel with the emergent pupil of optical imaging device, and the free form surface waveguide component with a thickness of 8mm with
It is interior；
Projection optics include four optical lenses, are arranged successively along the optical axis direction that light is advanced, wherein close to freely
The surface (1242L, 2242L, 3242L) of the optical lens of curved surface waveguide component is in the spherical surface of the recessed lens.
2. visual optical imaging device as described in claim 1, which is characterized in that the second of the free form surface waveguide component
Part includes three optical surfaces (1121L, 1122L and 1123L), wherein the five, the six optical surfaces (1121L, 1122L) are mutually flat
Capable plane and the plane for being integrally formed extension with above-mentioned second, the 4th optical surface after described two parts are glued, the 7th optics
(1123L) is free form surface, and the angle of the 7th optical surface and the 5th optical surface 1121L are greater than 22 ° less than 33 °；7th optical surface
To be used after cemented surface, with the third optical surface gluing of first part.
3. visual optical imaging device as claimed in claim 2, which is characterized in that first optical surface is coated with reflectance coating
Layer, third optical surface are coated with reflective coating or half-reflection and half-transmission optical film layer.
4. visual optical imaging device as claimed in claim 2 or claim 3, which is characterized in that described first and three optical surfaces
The angle of (1111L, 1113L) and the 4th optical surface (1114L) is greater than 25 ° less than 38 °.
5. visual optical imaging device as claimed in claim 4, which is characterized in that the emergent pupil of the visual optical imaging device
Distance reaches 15mm or more.
6. visual optical imaging device as described in claim 1, it is characterised in that first and third of the Projection optics
Lens are non-spherical lens, and material is optical resin；The second, four lens are spherical lens, and material is optical glass.
7. visual optical imaging device as claimed in claim 6, which is characterized in that the optical axis of the Projection optics and institute
The light incident surface for stating free form surface waveguide component is vertical.
8. visual optical imaging device as claimed in claim 6, which is characterized in that the optical axis of the Projection optics and institute
State the light incident surface out of plumb of free form surface waveguide component, and the optical axis of the Projection optics and the light incident surface hang down
Histogram is in the inclination angle within about 20 degree.
9. a kind of near-eye display with the described in any item visual optical imaging devices of pair of right and left such as claim 1-8,
It is characterized in that, image source element is LCD, OLED or LCOS type Micro display element.
10. near-eye display as claimed in claim 9, which is characterized in that the Micro display element is dismountable.
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| CN107976807A (en) * | 2016-11-25 | 2018-05-01 | 上海渺视光学科技有限公司 | A kind of augmented reality formula head-mounted display and its light channel structure |
| CN108319015B (en) * | 2017-04-21 | 2023-02-10 | 北京耐德佳显示技术有限公司 | Retina projection type near-to-eye display device |
| CN108931850A (en) * | 2017-05-26 | 2018-12-04 | 上海真曦通信技术有限公司 | A kind of wearable optical system, device and method |
| WO2019056188A1 (en) * | 2017-09-19 | 2019-03-28 | 深圳市柔宇科技有限公司 | Smart glasses |
| JP2021033208A (en) * | 2019-08-29 | 2021-03-01 | セイコーエプソン株式会社 | Display unit and method for adjusting optical system of display unit |
| US20230023570A1 (en) * | 2019-12-13 | 2023-01-26 | Google Llc | Near-eye optical system implementing a waveguide with an output viewer element having a refractive beam-splitting convex lens |
| CN111399226A (en) * | 2020-04-27 | 2020-07-10 | 青岛韬谱光学科技有限公司 | Near-to-eye prism display system |
| CN111399321B (en) * | 2020-05-08 | 2022-04-15 | 北京耐德佳显示技术有限公司 | Small-size projection optical assembly and projection optical system suitable for near-eye display |
| CN111458884A (en) * | 2020-05-27 | 2020-07-28 | 歌尔光学科技有限公司 | Light conducting structure and head-mounted display device |
| CN111880363B (en) * | 2020-09-28 | 2024-04-05 | 歌尔股份有限公司 | Optical machines and AR equipment |
| KR20220131720A (en) * | 2021-03-22 | 2022-09-29 | 삼성전자주식회사 | Display device including a combiner having an asymmetric magnification |
| CN113099090A (en) * | 2021-04-08 | 2021-07-09 | 重庆工程职业技术学院 | Coal mine inspection auxiliary system and method |
| WO2022247377A1 (en) * | 2021-05-27 | 2022-12-01 | Oppo广东移动通信有限公司 | Display apparatus and wearable device |
| CN114236854A (en) * | 2021-12-14 | 2022-03-25 | 上海慧希电子科技有限公司 | Optical device, optical system, and AR apparatus |
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