CN103345065A - Wearable head up optical system - Google Patents

Wearable head up optical system Download PDF

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Publication number
CN103345065A
CN103345065A CN2013102978048A CN201310297804A CN103345065A CN 103345065 A CN103345065 A CN 103345065A CN 2013102978048 A CN2013102978048 A CN 2013102978048A CN 201310297804 A CN201310297804 A CN 201310297804A CN 103345065 A CN103345065 A CN 103345065A
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light
optical system
light source
medium block
imaging
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CN103345065B (en
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谈顺毅
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JIANGSU HUIGUANG ELECTRONIC TECHNOLOGY Co Ltd
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JIANGSU HUIGUANG ELECTRONIC TECHNOLOGY Co Ltd
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Priority to PCT/CN2014/082226 priority patent/WO2015007201A1/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/32Holograms used as optical elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01Head-up displays
    • G02B27/0149Head-up displays characterised by mechanical features
    • G02B2027/015Head-up displays characterised by mechanical features involving arrangement aiming to get less bulky devices

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

The invention provides a wearable head up optical system which comprises an imaging system, output imaging light rays and a light guide system which guides the imaging light rays into human eyes. The imaging system is provided with a light source interface, the imaging system receives light source rays emitted by an outside light source through the light source interface and light ray transmission media, and the light source rays are used for generating imaging light rays. The wearable head up optical system is beneficial to decreasing the size and lowering the weight of the system and capable of improving the comfort degree in the wearing process.

Description

The wearable optical system of looking squarely
Technical field
The present invention relates to a kind of wearable optical system of looking squarely.
Background technology
At present, the Wearable electronic product is fast-developing, and has portioned product to begin practical application, for example Google's glasses.The product that is similar to Google's glasses belongs to the wearable optical system of looking squarely, it mainly comprises imaging system and light-conducting system, the image of imaging system output conducts to human eye via light-conducting system, in addition, light-conducting system is normally transparent, therefore when showing image, can't influence user's the visual field, realize the fusion of virtual scene and demonstration scene.
In the prior art, look squarely in the imaging system of optical system and be integrated with light source and electronic chip usually, in order to producing and output image, integrated light source and electronic chip cause the whole volume and weight of looking squarely optical system bigger, comfortableness and portability when influence is worn.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of wearable optical system of looking squarely, and is conducive to reduce system bulk and weight, can improve the comfortableness when wearing.
For solving the problems of the technologies described above, the invention provides a kind of wearable optical system of looking squarely, comprising:
Imaging system is output into picture light;
Light-conducting system guides to human eye with described imaging light;
It is characterized in that,
Described imaging system has light source interface, and described imaging system receives the source light that external light source sends via this light source interface and light transmission medium, and uses this source light to generate described imaging light.
According to one embodiment of present invention, described light transmission medium is optical fiber.
According to one embodiment of present invention, described light source interface comprises wedge shape light guide plate or lens combination.
According to one embodiment of present invention, described external light source is LASER Light Source.
According to one embodiment of present invention, described imaging system comprises:
Image device;
The reflection and transmission element is inducted into described source light and is incident upon described image device by reflection or transmission, and the imaging light of described image device reflection is inducted into by transmission or reflection is incident upon described light-conducting system.
According to one embodiment of present invention, described image device display holography image or real image.
According to one embodiment of present invention, described image device is liquid crystal on silicon chip or digital micromirror elements.
According to one embodiment of present invention, the demonstration data of described image device insert by external data line or wireless mode.
According to one embodiment of present invention, described reflection and transmission element is polarizing prism or semi-transparent semi-reflecting prism or total reflection prism.
According to one embodiment of present invention, described imaging system also comprises: be arranged on the lens combination on described image device surface, described lens combination comprises one or more lens.
According to one embodiment of present invention, described light-conducting system comprises first medium block and second medium block of mutual applying, the binding face of described first medium block and second medium block is that inclined-plane and this inclined-plane are provided with semi-reflective and semitransmittable thin film, described imaging light is from the described first medium block incident, transfer to described semi-reflective and semitransmittable thin film via this first medium block, and reflex to human eye by described semi-reflective and semitransmittable thin film.
According to one embodiment of present invention, the angle a between the outside surface of the binding face of described first medium block and second medium block and described first medium block satisfies following relation:
Figure BDA00003519185300021
Wherein, n 1The refractive index of the dielectric material that adopts for described first medium block, n 0Refractive index for the external agency material that contacts with described first medium block.
According to one embodiment of present invention, the plane of incidence that described imaging light is incident to described light-conducting system is the curved surface that curved surface or gummed have different refractivity, to realize lens function.
Compared with prior art, the present invention has the following advantages:
The Wearable of the embodiment of the invention is looked squarely in the optical system, and imaging system has light source interface, and this light source interface can be configured to link to each other with the light transmission medium of optical fiber and so on, thereby the source light that external light source sends is imported, in order to imaging.Because light source is in and looks squarely outside the optical system, therefore be conducive to reduce system bulk and weight, the comfortableness when being conducive to improve portability and improvement and wearing.
In addition, the displaying contents that shows the image device that uses on the image planes also can insert by external cable (wrapping in the light pricker) or wireless mode, thereby electronic chip is external, further reduces volume and weight, reduce wearable system simultaneously and produce heat, improve the comfortable wearing degree.Also can be external in order to the power supply that drives image device, insert by external cable (wrapping in light pricker and communication data line) then, further reduce volume and weight, reduce wearable system simultaneously and produce heat, improve the comfortable wearing degree.
Furthermore, in the imaging system of the embodiment of the invention, image device can the display holography image, because hologram image itself can light modulated, therefore can realize the function of lens by the mode of software adjustment, realize being equivalent to the function that changes the focal length of lens by changing hologram image, make the beholder under the situation that does not change any hardware, see the image of being presented in different distance.
Description of drawings
Fig. 1 is the wearable one-piece construction synoptic diagram of looking squarely optical system of the embodiment of the invention;
Fig. 2 is the wearable structural representation of looking squarely first example of optical system of the embodiment of the invention;
Fig. 3 is the wearable structural representation of looking squarely second example of optical system of the embodiment of the invention;
Fig. 4 is the wearable structural representation of looking squarely the 3rd example of optical system of the embodiment of the invention;
Fig. 5 is the wearable structural representation of looking squarely the 4th example of optical system of the embodiment of the invention;
Fig. 6 is the structural representation of the 5th example of looking squarely optical system of the embodiment of the invention;
Fig. 7 is the structural representation of the 6th example of looking squarely optical system of the embodiment of the invention;
Fig. 8 is the structural representation of the 7th example of looking squarely optical system of the embodiment of the invention;
Fig. 9 is the structural representation of the 8th example of looking squarely optical system of the embodiment of the invention;
Figure 10 is the structural representation of looking squarely a kind of light-conducting system in the optical system of the embodiment of the invention;
Figure 11 is the structural representation of looking squarely another kind of light-conducting system in the optical system of the embodiment of the invention;
Figure 12 is the structural representation of looking squarely another light-conducting system in the optical system of the embodiment of the invention;
Figure 13 is the structural representation of looking squarely another light-conducting system in the optical system of the embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with specific embodiments and the drawings, but should not limit protection scope of the present invention with this.
With reference to figure 1, the wearable optical system of looking squarely of present embodiment comprises imaging system 11 and light-conducting system 12.Wherein, imaging system 11 is output into picture light, and this imaging light is incident to light-conducting system 12 and guides to human eye by light-conducting system 12.
Furthermore, imaging system 11 has light source interface, this light source interface is configured to link to each other with the light transmission medium of optical fiber and so on, the source light that external light source is sent via this light transmission medium and light source interface is directed into imaging system 11, and imaging system 11 utilizes the source light that imports to produce and be output into picture light.Imaging system 11 can adopt any suitable structure in the prior art, because light source is positioned at the whole optical system outside of looking squarely, make that the volume and weight of looking squarely the optical system outside is all smaller, in addition, also can avoid the more high-power problems such as heating that cause of light source.
Wherein, external light source can be laser or led light source.The light transmission medium can be optical fiber, but is not limited to this.
In addition, can be integrated with semi-reflective and semitransmittable thin film in the light-conducting system 12, the imaging line reflection that will propagate along light-conducting system 12 is to human eye, and in addition, human eye also can see through semi-reflective and semitransmittable thin film see outside visions of reality.Certainly, it will be appreciated by those skilled in the art that semi-reflective and semitransmittable thin film herein only is example, can also adopt modes such as polarizing prism, semi-transparent semi-reflecting prism to realize similar function.
With reference to figure 2, in first embodiment, light source interface adopts lens combination 15 to realize that this lens combination 15 for example can comprise the fiber optic collimator mirror.The source light that external light source 10 sends is used for generating imaging light via optical fiber 14 and lens combination 15 inputs.Wherein, external light source 10 for example can be LASER Light Source.
With reference to figure 3, in a second embodiment, light source interface adopts wedge shape light guide plate 16 to realize, the source light that external light source 10 sends is used for generating imaging light via optical fiber 14 and 16 inputs of wedge shape light guide plate.Wherein, external light source 10 for example can be LASER Light Source.
Fig. 2 and shown in Figure 3 be example only, it will be appreciated by those skilled in the art that the specific implementation of light source interface is not limited to lens combination or wedge shape light guide plate.
With reference to figure 4, in the 3rd embodiment, the lens combination 112 that imaging system 11 comprises image device 111 and is arranged on image device 111 surfaces, image device 111 shows real image, lens combination 112 comprises one or more lens.
Particularly, image device 111 for example can be liquid crystal on silicon chip (LCoS) or digital micromirror elements (DMD) or crystal projection chip (LCD chip) etc., light emitting diode (LED) or LASER Light Source illumination back by the outside show image, and this image is real image.And lens combination 112 can be made of convex lens or Fresnel Lenses.In this example, image device 111 can be less than the whole focal length of lens combination 112 with the distance of lens combination 112.
Image device 111 utilizes the source light of external light source 10 to produce imaging light, enters light-conducting system via lens combination 112.Wherein, the source light of external light source 10 enters image device 111 via light transmission medium 14 and light source interface 17.Light-conducting system can comprise first medium block 121 and second medium block 122 of mutual applying, and the binding face of the two is the inclined-plane, and this inclined-plane is provided with semi-reflective and semitransmittable thin film 13.Wherein, the material of first medium block 121 and second medium block 122 can be identical; Semi-reflective and semitransmittable thin film 13 can be coated on the binding face, also can be plated on the binding face.The effect of semi-reflective and semitransmittable thin film 13 is that control enters the optical transmission rate that is mapped on the binding face (interphase in other words) from imaging system 11, forms the effect of part transmissive portion reflection, for example 70% transmission, 30% reflection.
Semi-reflective and semitransmittable thin film 13 to human eye, makes the imaging line reflection human eye see and focuses on virtual image image planes at a distance.
With reference to figure 5, Fig. 5 shows the 4th embodiment that looks squarely optical system, and its structure and the 3rd embodiment are basic identical.Difference is that among the 4th embodiment, first medium block 121 in the light-conducting system is different with the material of second medium block 122.
With reference to figure 6, Fig. 6 shows the 5th embodiment that looks squarely optical system.In the 5th embodiment, imaging system comprises image device 41 and polarizing prism (PBS) 42.Wherein, polarizing prism 42 can be integrated in the light-conducting system 12, just is combined into one with light-conducting system 12.
In the 5th embodiment, image device 41 can be liquid crystal on silicon chip (LCoS) or digital micromirror elements (DMD), its demonstration be hologram image, utilize outside light source (for example laser or led light source) illumination, imaging behind the diffraction interference, because hologram image (perhaps being called kinoform) itself can transfer to light, therefore can realize lens function by software adjustment, by change hologram image can so that the beholder under the condition that does not change any hardware, see the image of being presented in different distance, so this is looked squarely in the optical system and can not install lens combination additional.
Furthermore, image device 41 is positioned at a side of light-conducting system 12, and the source light that light source sends is injected from the relative opposite side of light-conducting system 12 via light source interface 17.The light that light source sends can be polarized light, will see through when entering polarizing prism 42 for the first time, illuminates image device 41.The source light that image device 41 modulated light sources 10 are sent, and change its polarization direction back reflection, light modulated after the reflection enters polarizing prism 42 backs again because the polarization direction becomes, will be polarized prism 42 reflections and enter light-conducting system 12, and in light-conducting system 12, be transmitted to the left side semi-reflective and semitransmittable thin film or also can be polarization or unpolarized prism, and the reflection enter in beholder's eye.Wherein, light source can be placed on outside the imaging system, and by the mode of optical fiber source light is imported, thereby reduces system bulk and weight.
With reference to figure 7, Fig. 7 shows the 6th embodiment that looks squarely optical system.In the 6th embodiment, imaging system comprises image device 51 and total reflection prism (TIR) 52.Wherein, total reflection prism 52 can be integrated in the light-conducting system 12, just is combined into one with light-conducting system 12.
Among the 6th embodiment, what image device 51 showed is hologram image, it can be liquid crystal on silicon chip (LCoS) or digital micromirror elements (DMD) or hologram, utilizes outside light source (for example laser or led light source) illumination, imaging behind the diffraction interference.
Furthermore, image device 51 is positioned at a side of light-conducting system 12, and the source light that light source sends is injected from adjacent opposite side via light source interface 17.Will total reflection when the light that light source sends enters total reflection prism 52 for the first time, illuminate image device 51.Image device 51 is imager chip such as liquid crystal on silicon chip or digital micromirror elements for example, the source light that can modulated light source sends, and with its reflection, light modulated after the reflection enters total reflection prism 52 backs again because incident angle becomes, will transmission cross total reflection prism 52 and enter light-conducting system 12, and be transmitted to left side semi-reflective and semitransmittable thin film or polarization or unpolarized prism in light-conducting system 12, and reflection enters in beholder's eye.Wherein, light source 10 can be placed on outside the imaging system, and by the mode of optical fiber illuminating ray is imported, thereby reduces system bulk and weight.
Need to prove, though among the 5th and the 6th embodiment, what image device showed is hologram image, can realize lens function by the adjusting of image device itself, but in order further to improve display effect, also can be provided with lens combination in the surface of image device.In addition, among the 5th and the 6th embodiment, what the reflection and transmission element adopted is respectively polarizing prism and total reflection prism, but is not limited to this, and this reflection and transmission element can also adopt semi-transparent semi-reflecting prism or other suitable devices to realize.
With reference to figure 8, Fig. 8 shows the 7th embodiment that looks squarely optical system.In the 7th embodiment, imaging system comprises that light source interface 16(is specially the wedge shape light guide plate), image device 51 and polarizing prism (PBS) 42, lens combination 112.Wherein, polarizing prism 42 and lens combination 112 can be integrated in the light-conducting system 12, just are combined into one with light-conducting system 12.
Among the 7th embodiment, what image device 51 showed is real image, and it can be liquid crystal on silicon chip (LCoS) or digital micromirror elements (DMD), utilizes external light source 10(for example laser or led light source) illumination.
Furthermore, image device 51 is positioned at a side of light-conducting system 12, and the source light that light source 10 sends is from the light source interface 16(wedge shape light guide plate of the relative opposite side that is positioned at light-conducting system 12) inject.The light that light source 10 sends can be polarized light, will see through when entering polarizing prism 42 for the first time, illuminates image device 51.The source light that image device 51 modulated light sources 10 are sent, and change its polarization direction back reflection, light modulated after the reflection enters polarizing prism 42 backs again because the polarization direction becomes, will be polarized prism 42 reflections and enter lens combination, the lens combination two sides is glued at light-conducting system 12 and polarizing prism 42 surfaces respectively, light is transmitted to the semi-reflective and semitransmittable thin film in left side or also can is polarization or unpolarized prism in light-conducting system 12, and reflection enters in beholder's eye.Wherein, light source 10 can be placed on outside the imaging system, and by the mode of optical fiber source light is imported, thereby reduces system bulk and weight.
With reference to figure 9, Fig. 9 shows the 8th embodiment that looks squarely optical system.In the 8th embodiment, imaging system comprises that image device 51, polarizing prism (PBS) 42, light source interface 15(are specially lens combination), curved reflector 112,1/4 slide 113.Wherein, polarizing prism 42 can be integrated in the light-conducting system 12, just is combined into one with light-conducting system 12.Furthermore, imaging system is arranged on an end of light-conducting system 12, and curved reflector 112 and 1/4 slide 113 are arranged on the other end of light-conducting system 12.
Among the 8th embodiment, what image device 51 showed is real image, and it can be liquid crystal on silicon chip (LCoS) or digital micromirror elements (DMD), utilizes outside light source 10(for example laser or led light source) illumination.
Furthermore, image device 51 is positioned at a side of light-conducting system 12, and the source light that light source 10 sends is from the light source interface 15(lens combination of the relative opposite side that is positioned at light-conducting system 12) inject.The light that light source 10 sends can be polarized light, will see through when entering polarizing prism 42 for the first time, illuminates image device 51.The source light that image device 51 modulated light sources 10 are sent, and change its polarization direction back reflection, light modulated after the reflection enters polarizing prism 42 backs again because the polarization direction becomes, will be polarized prism 42 reflections and enter light-conducting system 12, light is transmitted to the polarizing prism in left side in light-conducting system 12, will see through during the incident polarization prism for the first time, back by curved reflector 112 reflection modulation through 1/4 slide 113, again through inciding polarizing prism again behind 1/4 slide 113, because its polarization direction is changed by 1/4 slide 113, light will be reflected and enter in beholder's eye.Wherein, light source 10 can be placed on outside the imaging system, and by the mode of optical fiber source light is imported, thereby reduces system bulk and weight.
Below in conjunction with a plurality of examples this light-conducting system of looking squarely in the optical system is elaborated.
With reference to Figure 10, in first example, light-conducting system comprises first medium block 121 and second medium block 122 of mutual applying, and light-conducting system is the plane near the end face of imaging system, and just to be used for the end face of imaging light incident vertical with outside surface (side in other words) for first medium block 121.
The binding face of first medium block 121 and second medium block 122 is the inclined-plane, and also namely the outside surface (side in other words) of this binding face and first medium block 121 and second medium block 122 is also non-perpendicular.Angle a between the binding face of first medium block 121 and second medium block 122 and the outside surface of first medium block 121 satisfies following relation:
Figure BDA00003519185300081
Wherein, n 1Be the refractive index of the dielectric material that adopts of first medium block 121, n 0Refractive index for the external agency material that contacts with first medium block 121 (for example air or be arranged on film on first medium block, 121 outside surfaces).
Can be provided with semi-transparent semi-reflecting film on the binding face of first medium block 121 and second medium block 122, realize the effect of part transmissive portion reflection.See also the associated description of preamble about the details of semi-transparent semi-reflecting film, repeat no more here.In addition, can also adopt modes such as semi-transparent semi-reflecting prism or polarizing prism to realize similar function.
With reference to Figure 11, in second example, light-conducting system comprises first medium block 121 and second medium block 122 of mutual applying, and light-conducting system is the inclined-plane near the end face 71 of imaging system, and just first medium block 121 is non-perpendicular with outside surface (side in other words) for the end face 71 of imaging light incident.The plane of incidence adopts the inclined-plane, can effectively increase to the incident area of picture light.
With reference to Figure 12, in the 3rd example, light-conducting system comprises first medium block 121 and second medium block 122 of mutual applying, and light-conducting system has the curved surface of different refractivity near the end face 81 of imaging system for curved surface or gummed, to realize lens function.Furthermore, in the 3rd embodiment, end face 81 is the curved surface of indent.
With reference to Figure 13, in the 4th example, light-conducting system comprises first medium block 121 and second medium block 122 of mutual applying, and the end face setting that light-conducting system is opposite with imaging system (for example adopting the mode of gummed) has 1/4 slide 92 and curved reflector 91, when the light that transmits from imaging system will see through during the incident polarization prism for the first time, back by curved reflector 91 reflection modulation through 1/4 slide 92, again through inciding polarizing prism again behind 1/4 slide 92, because its polarization direction is changed by 1/4 slide 92, light will be reflected and enter in beholder's eye.Furthermore, in the 4th example, light-conducting system has 1/4 slide 92 and polarizing prism 91 away from gummed on the end face of imaging system.
Need to prove, in third and fourth example, when the end face of light-conducting system adopts curved-surface structure to realize lens function, also can integrated other lenses in the imaging system to improve imaging effect, perhaps also lens can be set in the imaging system, only adopt the curved surface of light-conducting system to realize lens function.
In addition, light-conducting system can be made the frosted structure or apply blackwash or rete away from the end face of imaging system, and in other words, the end face of the other end that light-conducting system is opposite with the imaging plane of light incidence can be made the frosted structure or apply blackwash or rete.
To sum up, present embodiment wearable looked squarely the product that optical system can be made similar glasses, and the image that adopts the mode of holographic imaging to make the user see is presented on than actual range farther place, thereby alleviates visual fatigue; In addition by transparent light-conducting system with the image planes translation, and do not stop the light in human eye front, form a kind of transparent display system, realize the fusion of virtual scene and visions of reality.
Though the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.

Claims (13)

1. wearable optical system of looking squarely comprises:
Imaging system is output into picture light;
Light-conducting system guides to human eye with described imaging light;
It is characterized in that,
Described imaging system has light source interface, and described imaging system receives the source light that external light source sends via this light source interface and light transmission medium, and uses this source light to generate described imaging light.
2. the optical system of looking squarely according to claim 1 is characterized in that, described light transmission medium is optical fiber.
3. the optical system of looking squarely according to claim 1 is characterized in that, described light source interface comprises wedge shape light guide plate or lens combination.
4. the optical system of looking squarely according to claim 1 is characterized in that, described external light source is LASER Light Source.
5. the optical system of looking squarely according to claim 1 is characterized in that, described imaging system comprises:
Image device;
The reflection and transmission element is inducted into described source light and is incident upon described image device by reflection or transmission, and the imaging light of described image device reflection is inducted into by transmission or reflection is incident upon described light-conducting system.
6. the optical system of looking squarely according to claim 5 is characterized in that, described image device display holography image or real image.
7. the optical system of looking squarely according to claim 5 is characterized in that, described image device is liquid crystal on silicon chip or digital micromirror elements.
8. according to each described optical system of looking squarely in the claim 5 to 7, it is characterized in that the demonstration data of described image device insert by external data line or wireless mode.
9. the optical system of looking squarely according to claim 5 is characterized in that, described reflection and transmission element is polarizing prism or semi-transparent semi-reflecting prism or total reflection prism.
10. the optical system of looking squarely according to claim 5 is characterized in that, described imaging system also comprises: be arranged on the lens combination on described image device surface, described lens combination comprises one or more lens.
11. the optical system of looking squarely according to claim 1, it is characterized in that, described light-conducting system comprises first medium block and second medium block of mutual applying, the binding face of described first medium block and second medium block is that inclined-plane and this inclined-plane are provided with semi-reflective and semitransmittable thin film, described imaging light is from the described first medium block incident, transfer to described semi-reflective and semitransmittable thin film via this first medium block, and reflex to human eye by described semi-reflective and semitransmittable thin film.
12. the optical system of looking squarely according to claim 12 is characterized in that, the angle a between the binding face of described first medium block and second medium block and the outside surface of described first medium block satisfies following relation:
Figure FDA00003519185200021
Wherein, n 1The refractive index of the dielectric material that adopts for described first medium block, n 0Refractive index for the external agency material that contacts with described first medium block.
13. the optical system of looking squarely according to claim 1 is characterized in that, the plane of incidence that described imaging light is incident to described light-conducting system is the curved surface that curved surface or gummed have different refractivity, to realize lens function.
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WO2015007201A1 (en) * 2013-07-16 2015-01-22 江苏慧光电子科技有限公司 Wearable flat optical system
CN106094204A (en) * 2016-06-22 2016-11-09 马秋平 A kind of modified model VR glasses
CN106199961A (en) * 2014-11-26 2016-12-07 中强光电股份有限公司 virtual image display device
CN106257319A (en) * 2015-06-18 2016-12-28 中强光电股份有限公司 Display device
CN107085306A (en) * 2017-06-15 2017-08-22 杭州太若科技有限公司 Display device, augmented reality equipment and the head-up display of augmented reality equipment
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