WO2021190060A1 - 增强现实显示光学器件、光学系统、眼镜及hud显示系统 - Google Patents

增强现实显示光学器件、光学系统、眼镜及hud显示系统 Download PDF

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Publication number
WO2021190060A1
WO2021190060A1 PCT/CN2020/142145 CN2020142145W WO2021190060A1 WO 2021190060 A1 WO2021190060 A1 WO 2021190060A1 CN 2020142145 W CN2020142145 W CN 2020142145W WO 2021190060 A1 WO2021190060 A1 WO 2021190060A1
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WIPO (PCT)
Prior art keywords
augmented reality
reality display
nano
optical device
layer
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PCT/CN2020/142145
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English (en)
French (fr)
Inventor
张翠萍
胡飞
蒲栋
龚晨晟
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深圳光峰科技股份有限公司
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Publication of WO2021190060A1 publication Critical patent/WO2021190060A1/zh

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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
    • G02B27/017—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
    • 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
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • 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

Definitions

  • This application relates to the field of augmented reality display technology, and in particular to an augmented reality display optical device, optical system, glasses, and HUD display system.
  • Augmented reality display technology is a new technology that "seamlessly" integrates real world information and virtual world information. It uses computer and other science and technology to integrate physical information that is difficult to experience within a certain time and space of the real world. , The simulation is superimposed, the virtual information is applied to the real world, and is perceived by the human senses, so as to achieve a sensory experience that transcends reality.
  • the real environment and virtual objects are superimposed on the same picture or space in real time. This technology not only displays real-world information, but also displays virtual information at the same time. The two types of information complement and overlap each other.
  • the existing augmented reality display system usually consists of an optical engine and an optical combiner.
  • the optical combiner reflects the image of the optical engine into the human eye and maintains a certain transmittance of the ambient light.
  • the existing augmented reality display system cannot be In the case of cost, high performance realizes the reflection of the image and the transmission of the ambient light, which leads to the fact that the existing low-cost AR display system cannot achieve high imaging brightness.
  • the purpose of this application is to provide an augmented reality display optics, optical system, glasses, and HUD display system to improve the above-mentioned problems.
  • This application achieves the above-mentioned purpose through the following technical solutions.
  • the present application provides an augmented reality display optical device.
  • the augmented reality display optical device includes a base layer and a micro-nano optical reflective layer.
  • the base layer includes a first surface and a second surface opposite to the first surface.
  • the bottom layer transmits ambient light
  • the micro-nano optical reflective layer is disposed on the first surface of the base layer
  • the micro-nano optical reflective layer is configured to reflect light of the virtual image in a predetermined narrowband wavelength range.
  • the micro-nano optical reflective layer includes an intermediate layer and a nano-grating layer, the intermediate layer is arranged on the first surface of the base layer, and the nano-grating layer is arranged on a side of the intermediate layer away from the first surface.
  • the nano-grating layer is composed of a plurality of micro-nano grating structures arranged in an array, and the refractive index of each micro-nano grating structure is greater than 1.6.
  • the grating period of the nano-grating layer is 200 nm to 400 nm.
  • the duty cycle of the nano-grating layer is 0.1-0.9.
  • the nano-grating layer is prepared in the following manner: using resin as a raw material, the nano-grating layer is formed on the intermediate layer by embossing.
  • the refractive index of the intermediate layer is greater than 1.6.
  • the present application provides an augmented reality display system.
  • the augmented reality display system includes an image projection device and the above augmented reality display optics; the image projection device is used to send an image in a predetermined narrowband wavelength range to the augmented reality display optics Light; augmented reality display optics are used to transmit ambient light; augmented reality display optics are also used to reflect image light in a predetermined narrowband wavelength range for imaging.
  • the present application provides an augmented reality display glasses.
  • the augmented reality display glasses include a frame, a lens, and an augmented reality display system.
  • the frame includes a frame and a temple bracket that are connected to each other, the lenses are arranged in the frame, and the image projection device Set on the temple support; the augmented reality display optics is attached to the inner surface of the lens, or the lens is used as the base layer of the augmented reality display optics.
  • the present application provides an augmented reality HUD display system, including a windshield and an augmented reality display system, characterized in that the augmented reality display optics is attached to the inner surface of the windshield, or the windshield is used as augmented reality The base layer of the display optics.
  • this application provides an augmented reality HUD display system, including an independent HUD screen and an augmented reality display system, characterized in that the augmented reality display optics is attached to the inner surface of the independent HUD screen, or the independent HUD screen is used as augmented reality The base layer of the display optics.
  • the augmented reality display optics, optical system, glasses, and HUD display system utilize the micro-nano optical reflective layer to have extremely high reflectivity for image light at a predetermined narrow wavelength, and extreme resistance to ambient light.
  • FIG. 1 is a schematic structural diagram of an augmented reality display optical device provided by the first embodiment of the present application.
  • FIG. 2 is a schematic diagram of the reflectance and refractive index of the augmented reality display optical device provided by the first embodiment of the present application measured through experiments.
  • FIG. 3 is a schematic structural diagram of an implementation of the micro-nano optical reflective layer in the augmented reality display optical device provided by the first embodiment of the present application.
  • Fig. 4 is a schematic structural diagram of an augmented reality display system provided by a second embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of the augmented reality display glasses provided by the third embodiment of the present application at a first viewing angle.
  • FIG. 6 is a schematic diagram of the structure of the augmented reality display glasses provided by the third embodiment of the present application in a second viewing angle.
  • FIG. 7 is a schematic structural diagram of an augmented reality HUD display system from a first perspective according to a fourth embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an augmented reality HUD display system from a second perspective according to the fourth embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another augmented reality HUD display system provided by the fifth embodiment of the present application from a first perspective.
  • FIG. 10 is a schematic structural diagram of another augmented reality HUD display system from a second perspective provided by the fifth embodiment of the present application.
  • TFT-LCD thin film transistor liquid crystal display
  • AM-OLED active matrix organic light-emitting diode Or active matrix organic light emitting diode
  • display screen based on DLP (DLP: digital light processing) and 3LCD (3LCD: decompose the light emitted by the light source into R (red), G (green), B (blue) three colors (Light of the three primary colors of light) LED (LED: Light Emitting Diode)/laser light source projection technology, LCOS (LCOS: Liquid Crystal with Silicon)-based light source technology, and MEMS (MEMS: Micro Electro Mechanical System) system-based laser scanning solution.
  • DLP digital light processing
  • 3LCD decompose the light emitted by the light source into R (red), G (green), B (blue) three colors (Light of the three primary colors of light)
  • LED Light Emitting Diode
  • laser light source projection technology LCOS (LCOS: Liquid Crystal with Silicon)-based light source technology
  • optical combiners mainly includes Birdbath (Birdbath: curved mirror), free-form surface, geometric optical waveguide (also known as array optical waveguide) and diffractive optical waveguide technology (including surface relief grating and holographic volume grating).
  • Birdbath, free-form surfaces, and arrayed optical waveguides are all technologies based on geometric optics.
  • Birdbath and free-form surface technology realize the function of optical combination through the directional reflection of light and the transflective coating on the surface.
  • the related technology has low production cost and can achieve a large field of view.
  • this type of technology is difficult to implement on thin-film lenses, it is usually difficult for products based on this technology to have the lightweight form of ordinary glasses.
  • Array optical waveguide technology is to make the reflective surface of the free-form surface into a multilayer reflective array film to reduce the volume of the product, but due to the extremely difficult process, the cost has always been high.
  • Diffractive optical waveguide technology is based on micro-nano optics technology.
  • Diffractive optical waveguides mostly use gratings with surface relief structures or holographic volume gratings.
  • surface relief grating although the traditional rectangular grating has mature processing technology and can be mass-produced, it will bring about the problem of light efficiency utilization.
  • holographic volume gratings due to the limitations of materials and structures, the refractive index modulation that can be achieved is relatively limited, making it still lagging behind surface relief gratings in terms of viewing angle, light efficiency, and clarity, and the manufacturing process also has high costs, The problem of difficult mass production.
  • the optical combiner based on diffractive optics technology due to its high selectivity of the wavelength diffraction angle, is very easy to cause dispersion, and requires extremely high process accuracy, which further increases the cost of the technology. Therefore, AR glasses based on diffractive optical waveguide technology are more expensive. AR products with low cost, low power consumption, miniaturization, high imaging brightness, and high light transmittance are the main pursuits of future technology.
  • the inventor provides an augmented reality display optics, optical system, glasses, and HUD display system based on low power consumption, miniaturization, low cost, high brightness, and high light transmittance.
  • an embodiment of the present application provides an augmented reality display optical device 10.
  • the augmented reality display optical device 10 includes a base layer 200 and a micro-nano optical reflective layer 100.
  • the base layer 200 can transmit ambient light, and the base layer 200 includes a first surface 210 and a second surface 220 opposite to the first surface 210, the micro-nano optical reflective layer 100 is disposed on the first surface 210, and the micro-nano optical reflective layer 100 It is configured to reflect image light in a predetermined narrowband wavelength band.
  • the predetermined narrowband wavelength range refers to a predetermined narrower-width wavelength range.
  • the predetermined narrowband wavelength range may be a specific monochromatic light wavelength range, and the predetermined narrowband wavelength range may be a blue wavelength range (450nm-480nm), Any one of the green light wavelength range (500nm-560nm) and the red light wavelength range (605nm-700nm).
  • the predetermined narrowband wavelength range refers to light with a wavelength of 450nm-480nm.
  • the base layer 200 can transmit ambient light, and can be used as an attachment layer to be attached to other display devices.
  • the base layer 200 may be a planar configuration or a free-form surface.
  • the first surface 210 is a free-form surface
  • the second surface 220 can be attached to various display systems, such as lenses of AR glasses, windshields of HUD devices, and independent HUD screens.
  • the base layer 200 can also be directly attached to various display systems. As the lens of AR glasses, the windshield of HUD device and all or part of independent HUD screen.
  • the intermediate layer 120 can provide the basis for the nano-grating layer 110.
  • the intermediate layer 120 can be disposed on the first surface 210.
  • the refractive index of the intermediate layer 120 can be greater than 1.6, and the intermediate layer 120 with a refractive index greater than 1.6 can be used when the ambient light
  • the ambient light from the air (refractive index of 1.0, optically thin medium) to the intermediate layer 120 (refractive index of 1.6, optically dense medium) is incident at any angle, Total reflection will not occur, thereby ensuring that the ambient light incident on the micro-nano optical reflective layer 100 from the side of the nano-grating layer 110 will not be reflected, thereby improving the imaging effect.
  • ambient light incident from the base layer 200 to the micro-nano optical reflective layer 100 (the same principle as the air incident on the intermediate layer 120) will not be totally reflected, thereby increasing the transmittance of the ambient light.
  • the micro-nano optical reflective layer 100 has extremely high reflectivity for image light in a predetermined narrowband wavelength range.
  • the micro-nano optical reflective layer 100 includes an intermediate layer 120 and a nano-grating layer 110.
  • the intermediate layer 120 is disposed on the first surface 210 of the base layer 200, and the nano-grating layer 110 is disposed on the intermediate layer 120 away from the first surface 210.
  • the micro-nano optical reflective layer 100 can receive image light emitted by an external device (such as a laser display light machine), reflect the image light, and have a certain magnification imaging function, and reflect the image light into the rear optical system.
  • an external device such as a laser display light machine
  • Nano-grating has extremely high reflectivity to light in narrow band wavelengths, and high transmittance to other wavelength bands, which enables high reflection of image light and high transmittance to ambient light in other wavelength bands. Achieve selective wavelength imaging.
  • the nano-grating layer 110 may be composed of a plurality of micro-nano grating structures arranged in an array, and there is a certain gap between each nano-grating, so that when ambient light enters the nano-grating layer 110 from the intermediate layer 120, You can enter the human eye or the rear image receiving device through these gaps.
  • each nano-grating reflects local image light, and all the local image light is spliced into the entire image light, which enters the human eye or behind.
  • the image receiving device so that the human eye or the rear image receiving device can receive the complete image light, and can also receive the ambient light.
  • the refractive index of each micro-nano grating structure may be greater than or equal to 1.6, and may be the same or approximately the same as the refractive index of the intermediate layer, so that the ambient light from the intermediate layer 120 to the nano-grating layer 110 will not be reflected. , And can directly penetrate the nano-grating layer 110.
  • the refractive index of the micro-nano grating structure is greater than the refractive index of air.
  • the grating period of the nano-grating layer 110 can be selected from 200 nm to 400 nm, and the grating period refers to the length from a refractive index change point to an adjacent refractive index change point.
  • the nano-grating layer 110 has a very high reflectivity at a specific monochromatic light wavelength and a very high transmittance to ambient light.
  • the duty cycle of the nano-grating layer 110 can be 0.1-0.9, and the duty cycle can be adjusted to 0.1-0.9. On the one hand, it can improve the high reflectivity of the image light at the predetermined narrowband wavelength, and on the other hand, On the one hand, the distribution position of each nano-grating on the intermediate layer 120 is adjusted to improve the transmittance of ambient light.
  • the height of the grating can be selected to be in the range of 10 nm to 500 nm, and the height of the nano-grating layer 110 is adjusted to adjust the imaging distance of each nano-grating to ensure the imaging effect of the image light within a certain range.
  • the refractive index of the nano-grating layer 110 is adjusted to be greater than 1.6, the period is 200-400 nm, the duty cycle is 0.1-0.9, and the height is 10 nm-500 nm. Measured through experiments, as shown in Figure 2, the abscissa in the figure is the wavelength of light, and the ordinate is the transmittance/reflectance.
  • the nanograting layer 110 with this structure (refractive index greater than 1.6, period 200nm ⁇ 400nm, duty cycle Ratio 0.1 ⁇ 0.9, height 10nm ⁇ 500nm) to achieve a reflectivity of more than 60% at specific wavelengths (such as blue aurora 455nm, green laser 525nm and red laser 632nm), especially at the wavelength of 525nm to achieve extremely high reflectivity, It is about 97%, while ensuring that the half-maximum width is within 15nm, and has a good transmittance to ambient light and a very narrow bandwidth (5nm).
  • specific wavelengths such as blue aurora 455nm, green laser 525nm and red laser 632nm
  • the nano-grating layer 110 includes a plurality of nano-gratings arranged in an array, for example, arranged in a rectangular array to form the nano-grating layer 110.
  • the nano-grating layer 110 may be arranged in rows and columns perpendicular to each other in a rectangular array. In this way, the magnified image light formed by each nano-grating layer 110 can just be spliced into a complete image without overlapping. Therefore, the spacing between the nano-grating layers 110 in each row can be equal, and the nano-grating layers 110 in each column can be equal to each other. The spacing between them can also be equal.
  • the nano-grating layer 110 may also be arranged in other ways.
  • the nano-grating can also be arranged in the form of a ring array to form the nano-grating layer 110. With proper arrangement, the spacing between each nano-grating is the same, so that a complete image light can also be formed.
  • the nano-grating layer 110 may be formed of resin on the intermediate layer 120 by embossing.
  • the resin material is cheap, light in weight, and has good light transmittance, ensuring excellent transmittance to ambient light.
  • Imprinting that is, superimposing nano-gratings on the intermediate layer 120 to form the nano-grating layer 110, and forming the nano-grating layer 110 by embossing, which can ensure that the interval between the nano-gratings is within a predetermined range and improve the narrow band of the nano-grating layer 110.
  • the image light has extremely high reflectivity, it has excellent transmittance to ambient light, and the embossing process is simple and easy to mass produce, thereby reducing costs.
  • the augmented reality display optical device 10 utilizes the nano-grating layer 110 to arrange the nano-grating layer 110 on the intermediate layer 120 in an array, so that the image light reflected by each nano-grating can be spliced. Out the complete image.
  • the refractive index of the nano-grating layer 110 is set to be greater than 1.6 to achieve the reflectivity of the image light at the predetermined narrow wavelength; the period is selected to be 200nm ⁇ 400nm, to achieve extremely high reflectivity to the image light, and to the ambient light. Very high transmittance; it is prepared by hot embossing to achieve low cost.
  • an embodiment of the present application also provides an augmented reality display system 20, the augmented reality display system 20 includes an image projection device 300 and the augmented reality display optics 10 in the first embodiment, the image projection device 300 is used In order to emit image light of a predetermined narrowband wavelength band to the augmented reality display optical device 10, the augmented reality display optical device 10 is used to transmit ambient light, and is also used to reflect image light at a predetermined narrowband wavelength for imaging.
  • the image projection device 300 may be a laser display light machine, and the image light emitted by the laser display light machine may be a laser image of three primary colors, so as to achieve extremely high reflectivity and improve the imaging effect.
  • the solid line is the optical path of the image light
  • the dashed line is the optical path of the ambient light.
  • the image projection device 300 may be a laser display light machine
  • the laser light source has the advantages of high brightness, small divergence angle, wide color gamut, and high energy efficiency. Therefore, it can ensure high light emission brightness under the condition of low power consumption.
  • this display system uses the augmented reality display optics 10 in the first embodiment, which has high light reflectivity to the image projection device and high ambient light transmittance, so that it can ensure high-brightness imaging effects. , Will not affect the user's observation of ambient light.
  • an embodiment of the present application provides an augmented reality display glasses 30, which includes a frame 500, a lens 400, and the augmented reality display system 20 in the second embodiment.
  • the spectacle frame 500 includes a spectacle frame 520 and a temple support 510 connected to each other.
  • the lens 400 is disposed in the spectacle frame 520, and the image projection device 300 is disposed in the temple support 510.
  • the augmented reality display optics 10 is attached to the inner surface of the lens 400.
  • the frame 500 provides an installation basis for the lens 400 and the augmented reality display system 10b.
  • the spectacle frame 500 includes a spectacle frame 520 and a temple support 510 that are connected to each other.
  • the spectacle frame 520 may have a ring structure.
  • the interior is used to install the lens 400.
  • the temple supports 510 are rotatably arranged on the mirror frame 510.
  • the lens 400 and the lens frame 520 may have the same external structure, so as to satisfy the matching installation of the lens 400 and the lens frame 520.
  • the number of lenses 400 may be two, and the two lenses 400 are respectively disposed in the two lens frames 520.
  • the lens 400 may be an optical device with a curved structure made of optical materials such as glass or resin, and has excellent transmittance to ambient light.
  • the augmented reality display optical device 10 is attached to the inner surface of the lens 400, that is, the surface of the lens 400 facing the temple support 510.
  • the surface of the base layer 200 of the augmented reality display optical device 10 away from the micro-nano optical reflective layer 100 is attached to the inner surface of the lens 400.
  • the base layer 200 of the augmented reality display optical device 10 can also be directly used as the lens 400 and directly installed in the lens frame 520.
  • the base layer 200 can also be embedded in the lens 400 only as a part of the lens 400.
  • the augmented reality display system 20 may also include two, and the augmented reality display optical devices 10 of the two augmented reality display systems 20 are respectively arranged on the two lenses 400, The two image projection devices 300 are respectively arranged on the two mirror frame supports 510. And by reasonably adjusting the projection angle of the image projection device 300, the augmented reality display optical device 10 is located in the optical path of the image light, and the image light is completely projected on the augmented reality display optical device 10.
  • the image projection device 300 can also be arranged in the mirror frame 520 to satisfy the requirement that the augmented reality display optics 10 is located on the optical path of the image light, and the augmented reality optics 10a has extremely high reflectivity to the image light. That's it.
  • An embodiment of the present application also provides an augmented reality HUD display system 40.
  • the augmented reality HUD display system 40 includes a windshield 500 and the augmented reality display system 20 in the second embodiment. .
  • the windshield 500 may be a windshield of an automobile, or may be a windshield of some other equipment or buildings.
  • the augmented reality display optics 10 is attached to the inner surface of the windshield 500, and the image projection device 300 in the augmented reality display system 20 can be installed on the A-pillar in the car or other components that can be installed with the image projection device 300, and the micro The nano-optical reflection layer 100 is located on the optical path of the image projection device 300.
  • the augmented reality display optics 10 can be attached to only a part of the windshield 500.
  • the augmented reality display optics 10 can also be attached to all parts of the windshield 500.
  • Regionally. Specifically, the augmented reality display optics 10 is attached to the inner surface of the windshield 500. It can be understood that the inner surface of the windshield 500 even refers to the side of the windshield 500 located in the car (here, taking a car as an example) , Has the same implementation in some other devices).
  • the surface of the base layer 200 of the augmented reality display optical device 10 away from the micro-nano optical reflective layer 100 is attached to the inner surface of the windshield 400.
  • the base layer 200 of the augmented reality display optical device 10 can also be directly used as the windshield 500 and directly installed on the frame of the vehicle frame or other equipment where the windshield 500 is installed.
  • the base layer 200 can also only be used as the windshield 500. It is embedded in the windshield 500 as a part of the windshield 500.
  • the image projection device 300 is arranged on one side of the inner surface of the windshield 400. Specifically, for example, it can be arranged on the A-pillar of an automobile or some other fixing devices to satisfy the requirement that the augmented reality display optics 10 are located The light path of the image light emitted by the image projection device 300 is sufficient.
  • An embodiment of the present application also provides an augmented reality HUD display system 50.
  • the augmented reality HUD display system 50 includes an independent HUD screen 600 and the augmented reality display system in the second embodiment. 20.
  • the augmented reality display optical device 10 is attached to the inner surface of the independent HUD screen 600.
  • the independent HUD screen 600 can be configured in a form that can be carried independently, and can be fixed on the glass of a car or the like in a manner of pasting, etc., as a display screen.
  • the independent HUD screen 600 can be affixed to the inner surface of the front windshield of a car, and roughly located directly in front of the steering wheel, as a head-up display for drivers and passengers to watch.
  • the augmented reality display optics 10 is attached to the inner surface of the independent HUD screen, that is, located on the side of the independent HUD screen close to the rear optical system (when used in the automotive field, that is, the independent HUD screen is located close to 600 Person's side).
  • the surface of the base layer 200 of the augmented reality display optical device 10 away from the micro-nano optical reflective layer 100 is attached to the inner surface of the independent HUD screen 600.
  • the base layer 200 of the augmented reality display optical device 10 can also be directly used as the independent HUD screen 600, and the base layer 200 can also be embedded in the independent HUD screen 600 only as a part of the independent HUD screen 600.
  • the image projection device 300 is arranged on one side of the inner surface of the independent HUD screen. Specifically, for example, it can be arranged on the A-pillar of a car or some other fixing devices to satisfy the requirement that the augmented reality display optics 10 are located in the image. The light path of the image light emitted by the projection device 300 is sufficient.

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  • Optics & Photonics (AREA)

Abstract

一种增强现实显示光学器件（10）、具有增强现实显示光学器件（10）的增强现实显示系统（20）、增强现实显示眼镜（30）以及增强现实HUD显示系统（40、50），增强现实显示光学器件（10）包括基底层（200）和微纳光学反射层（100），基底层（200）包括第一表面（210）以及与第一表面（210）相背的第二表面（220），基底层（200）透射环境光，微纳光学反射层（100）设置于基底层（200）的第一表面（210），微纳光学反射层（100）被配置为将处于预定窄带波长段的虚拟影像的光线反射。增强现实显示光学器件（10）利用微纳光学反射层（100）对预定窄波长处图像光具有极高反射率、对环境光具有极高透射率的特性，从而以低成本、低功耗实现显示系统对预定窄波长处光源的高亮度、高透光率。

Description

增强现实显示光学器件、光学系统、眼镜及HUD显示系统 技术领域
本申请涉及增强现实显示技术领域，具体而言，涉及一种增强现实显示光学器件、光学系统、眼镜及HUD显示系统。
背景技术
增强现实显示技术，是一种将真实世界信息和虚拟世界信息“无缝”集成的新技术，是把原本在现实世界的一定时间空间范围内很难体验到的实体信息，通过电脑等科学技术，模拟仿真后再叠加，将虚拟的信息应用到真实世界，被人类感官所感知，从而达到超越现实的感官体验，真实的环境和虚拟的物体实时地叠加到了同一个画面或空间同时存在。这种技术不仅展现了真实世界的信息，而且将虚拟的信息同时显示出来，两种信息相互补充、叠加。现有的增强现实显示系统通常由光学引擎和光学组合器组成，光学组合器反射光学引擎的影像进入人眼，并对环境光线保持一定的透过率，现有的增强现实显示系统无法在低成本的情况下高性能实现对影像的反射以及环境光线的透射，这就导致了现有的低成本AR显示系统无法实现高成像亮度。
发明内容
本申请的目的在于提供一种增强现实显示光学器件、光学系统、眼镜及HUD显示系统，以改善上述问题。本申请通过以下技术方案来实现上述目的。
第一方面，本申请提供一种增强现实显示光学器件，该增强现实显示光学器 件包括基底层和微纳光学反射层，基底层包括第一表面以及与第一表面相背的第二表面，基底层透射环境光，微纳光学反射层设置于基底层的第一表面，微纳光学反射层被配置为将处于预定窄带波长段的虚拟影像的光线反射。
在一种实施方式中，微纳光学反射层包括中间层以及纳米光栅层，中间层设置于基底层的第一表面，纳米光栅层设置于中间层远离第一表面的一侧。
在一种实施方式中，纳米光栅层由多个呈阵列排布的微纳米光栅结构构成，每个微纳米光栅结构的折射率大于1.6。
在一种实施方式中，纳米光栅层的光栅周期为200nm～400nm。
在一种实施方式中，纳米光栅层的占空比为0.1～0.9。
在一种实施方式中，纳米光栅层由以下方式制备：以树脂为原料，通过压印的方式在中间层上形成纳米光栅层。
在一种实施方式中，中间层的折射率大于1.6。
第二方面，本申请提供一种增强现实显示系统，增强现实显示系统包括图像投影装置和如上的增强现实显示光学器件；图像投影装置用于向增强现实显示光学器件发出处于预定窄带波长段的图像光；增强现实显示光学器件用于透射环境光；增强现实显示光学器件还用于反射预定窄带波长段的图像光以成像。
第三方面，本申请提供一种增强现实显示眼镜，增强现实显示眼镜包括镜架、镜片和增强现实显示系统，镜架包括相互连接的镜框与镜腿支架，镜片设置于镜框中，图像投影装置设置于镜腿支架；增强现实显示光学器件贴附于镜片内表面，或者镜片作为增强现实显示光学器件的基底层。
第四方面，本申请提供一种增强现实HUD显示系统，包括挡风玻璃和增强现实显示系统，其特征在于，增强现实显示光学器件贴附于挡风玻璃内表面，或者 挡风玻璃作为增强现实显示光学器件的基底层。
第五方面，本申请提供一种增强现实HUD显示系统，包括独立HUD屏幕和增强现实显示系统，其特征在于，增强现实显示光学器件贴附于独立HUD屏幕内表面，或者独立HUD屏幕作为增强现实显示光学器件的基底层。
相较于现有技术，本申请提供的增强现实显示光学器件、光学系统、眼镜及HUD显示系统，利用微纳光学反射层对预定窄波长处图像光具有极高反射率、对环境光具有极高透射率的特性，从而实现以低成本、低功耗实现显示系统对预定窄波长处图像光的高亮度、高透光率。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请第一实施例提供的增强现实显示光学器件的结构示意图。
图2是本申请第一实施例提供的增强现实显示光学器件通过实验测得的反射率和折射率示意图。
图3是本申请第一实施例提供的增强现实显示光学器件中微纳光学反射层的一种实施方式的结构示意图。
图4是本申请第二实施例提供的一种增强现实显示系统的结构示意图。
图5是本申请第三实施例提供的一种增强现实显示眼镜的第一视角下的结构 示意图。
图6是本申请第三实施例提供的一种增强现实显示眼镜的第二视角下的结构示意图。
图7是本申请第四实施例提供的一种增强现实HUD显示系统在第一视角下的结构示意图。
图8是本申请第四实施例提供的一种增强现实HUD显示系统在第二视角下的结构示意图。
图9是本申请第五实施例提供的另一种增强现实HUD显示系统在第一视角下的结构示意图。
图10是本申请第五实施例提供的另一种增强现实HUD显示系统在第二视角下的结构示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请实施例进行更全面的描述。附图中给出了本申请实施例的较佳实施方式。但是，本申请实施例可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本申请的公开内容理解的更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请实施例中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。
在增强现实显示技术领域中，从光源的方面看，主要包括基于传统显示面板的TFT-LCD/AM-OLED(TFT-LCD：薄膜晶体管液晶显示器；AM-OLED：有源 矩阵有机发光二极体或主动矩阵有机发光二极体)显示屏幕、基于DLP(DLP：数字光处理)以及3LCD(3LCD：将光源发出的光分解成R(红)、G(绿)、B(蓝)三种颜色(光的三原色)的光)的LED(LED：发光二极管)/激光光源投影技术、基于LCOS(LCOS：液晶附硅)的光源技术以及基于MEMS(MEMS：微机电系统)系统的激光扫描方案。从光学组合器方面来看，主要包括Birdbath(Birdbath：曲面反射镜)、自由曲面、几何光波导(又称阵列光波导)以及衍射光波导技术(包括表面浮雕光栅和全息体光栅)。其中，Birdbath、自由曲面、阵列光波导都是基于几何光学的技术。Birdbath以及自由曲面技术通过对光线的定向反射以及表面的半透半反镀膜实现光学组合的功能，相关技术生产成本较低，并且可以实现很大的视场角。但是由于此类技术难以在薄片式镜片上实现，基于此技术的产品通常难以具有普通眼镜的轻便形态。并且由于半透半反膜层的存在，在一定程度上会影响周围环境的光线，无法保证不影响用户对周围环境的观察。阵列光波导技术是将自由曲面的反射面做成多层反射阵列膜层，以减小产品体积，但是由于工艺难度极高，成本一直居高不小。
目前，市场上也存在基于衍射光波导技术的AR眼镜，衍射光波导技术是基于微纳光学的技术，衍射光波导多采用具有表面浮雕结构的光栅或者全息体光栅。对于表面浮雕光栅来说，传统的矩形光栅虽然加工工艺成熟，可量产型好，但是会带来光效利用率的问题。对于全息体光栅来说，由于材料和结构的限制，能实现的折射率调制比较有限，使其在可视角、光效率和清晰度上依然落后于表面浮雕光栅，并且制备工艺也存在成本高、难量产的问题。另外，基于衍射光学技术的光学组合器，由于其对波长衍射角度的高度选择性，极易造成色散现象，对工艺精度要求极高，也进一步造成了该技术成本的提高。因此，基于衍射光波导技 术的AR眼镜价格较高。低成本、低功耗、小型化、高成像亮度、高透光率的AR产品是未来技术主要追求的方向。
因此，经过长期研究，发明人提供了一种基于低功耗、小型化，以及低成本、高亮度、高透光率的增强现实显示光学器件、光学系统、眼镜及HUD显示系统。
第一实施例
请参阅图1，本申请实施例提供了一种增强现实显示光学器件10，该增强现实显示光学器件10包括基底层200与微纳光学反射层100。基底层200能透射环境光，且基底层200包括第一表面210以及与第一表面210相背的第二表面220，微纳光学反射层100设置于第一表面210，微纳光学反射层100被配置为将处于预定窄带波长段的图像光反射。此处，预定窄带波长段是指：预定的较窄宽度波长段，例如：预定窄带波长段可以是特定的单色光波长段，其中预定窄带波长段可以是蓝光波长段(450nm-480nm)、绿光波长段(500nm-560nm)、红光波长段(605nm-700nm)中的任一者，示例性的，本实施例中，预定窄带波长段是指波长在450nm-480nm的光线。
基底层200可以透过环境光，可以作为贴附层贴附于其他显示设备。在一些实施方式中，基底层200可以是平面构型、也可以是自由曲面。本实施例中，第一表面210为自由曲面，第二表面220可以安装贴附于各类显示系统，例如AR眼镜的镜片、HUD装置的挡风玻璃以及独立HUD屏幕，基底层200也可以直接作为AR眼镜的镜片、HUD装置的挡风玻璃以及独立HUD屏幕的全部或者一部分。
中间层120可为纳米光栅层110提供基础，中间层120可设置于第一表面210，本实施方式中，中间层120的折射率可以大于1.6，折射率大于1.6的中间 层120，当环境光从纳米光栅层110一侧入射至中间层120时，由空气(折射率为1.0，光疏介质)射向中间层120(折射率为1.6，光密介质)环境光无论以何种角度入射，都不会发生全反射，从而保证从纳米光栅层110一侧入射至微纳光学反射层100的环境光不会被反射，从而提高成像效果。且，从基底层200入射至微纳光学反射层100环境光(与空气入射至中间层120具有相同的原理)，不会发生全反射，从而提高环境光的透射率。
微纳光学反射层100对预定窄带波长段的图像光具有极高的反射率。作为一种方式，微纳光学反射层100包括中间层120以及纳米光栅层110，中间层120设置于基底层200的第一表面210，纳米光栅层110设置于中间层120远离第一表面210的一侧的表面。微纳光学反射层100可接受外部设备(例如激光显示光机)所发出的图像光，并将图像光反射，并具有一定的放大成像功能，将图像光反射并，进入后方光学系统。
纳米光栅对窄带波长段的光线具有极高的反射率，对其他波长段具有极高的透射率，能使对图像光高反射的同时，对其他波长段的环境光具有极高的透射率，实现选择性波长的成像。在一些实施方式中，纳米光栅层110可以由多个呈阵列排布的微纳米光栅结构构成，每个纳米光栅之间存在一定的空隙，使得环境光从中间层120进入纳米光栅层110时，可以穿过这些空隙进入人眼或者后方图像接收设备。当图像光从纳米光栅层110的远离中间层120的一侧入射至纳米光栅层110时，每个纳米光栅反射局部的图像光，所有的局部图像光拼接成整个图像光，进入人眼或者后方图像接收设备，以使人眼或者后方图像接收设备能够接收到完整的图像光，且还能接收到环境光。
在一些实施方式中，每个微纳米光栅结构的折射率可以大于或等于1.6，并 可以与中间层的折射率相同或大致相等，使得从中间层120向纳米光栅层110的环境光不会反射，而可以直接透过纳米光栅层110。同时微纳米光栅结构的折射率大于空气折射率，当图像光入射于微纳米光栅结构后发生衍射，衍射光能发生全反射。
在一些实施方式中，纳米光栅层110的光栅周期可以选用200nm～400nm，光栅周期是指从一个折射率改变点到相邻一个折射率改变点的长度。从而使纳米光栅层110具有对特定单色光波长处极高的反射率，以及对环境光有极高的透射率。
在一些实施方式中，纳米光栅层110的占空比可以为0.1～0.9，占空比调整为0.1～0.9，一方面可以提高对预定窄带波长处的图像光具有极高的反射率，另一方面，调整每个纳米光栅位于中间层120的分布位置，以提高对环境光的透过率。在一些实施方式中，光栅高度可以选择为10nm～500nm范围，通过调整纳米光栅层110的高度，以调节每个纳米光栅的成像距离，保证一定范围内对图像光的成像效果。
将纳米光栅层110的折射率调整为大于1.6，周期选用200～400nm，占空比为0.1～0.9,高度选择为10nm～500nm。通过实验测得，如图2所示，图中横坐标为光的波长，纵坐标为透射率/反射率，具有该结构的纳米光栅层110(折射率大于1.6、周期200nm～400nm、占空比0.1～0.9、高度10nm～500nm)对特定波长处(如蓝极光455nm、绿激光525nm以及红激光632nm)达到超过60％的反射率，特别是在525nm处的波长实现极高的反射率，约为97％，同时保证半极值宽度在15nm以内，且对环境光有很好的透过率并保证极窄的带宽(为5nm)。
纳米光栅层110包括多个呈阵列排布的纳米光栅，例如以矩形阵列的方式排布，以形成纳米光栅层110。在一些实施方式中，请参阅图3，纳米光栅层110可 以在矩形阵列中按照彼此垂直的行和列来排列。这样各个纳米光栅层110形成的放大图像光刚好可以拼接成完整图像，同时不会发生重叠，因此每一行中的纳米光栅层110之间的间距可以相等，且每一列中的纳米光栅层110之间的间距也可以相等。
除了矩形阵列布置外，纳米光栅层110还可以按照其他方式排列。例如，纳米光栅还可以以环形阵列的形式进行排布，以形成纳米光栅层110。通过适当的排布，每个纳米光栅之间的间隔相同，这样同样可以形成完整的图像光。
在一些实施方式中，纳米光栅层110可以树脂为原料，通过压印的方式在中间层120上形成。树脂原料便宜，重量轻，透光性好，保证对环境光极好的透射率。压印，即在中间层120上叠印纳米光栅形成纳米光栅层110，通过压印的方式形成纳米光栅层110，能保证纳米光栅之间的间隔在预定范围内，提高纳米光栅层110对预定窄带图像光极高反射率的同时，对环境光具有极好的透射率，且压印工艺简单，易量产，从而降低成本。
综上，本申请实施例提供的增强现实显示光学器件10，利用纳米光栅层110，将纳米光栅层110通过阵列排布设置于中间层120，以使每个纳米光栅所反射的图像光能拼接出完整的图像。将纳米光栅层110的折射率设置为大于1.6，实现对预定窄波长处的图像光几号的反射率；周期选择为200nm～400nm，实现对图像光极高反射率的同时，对环境光具有极高的透过率；采用热压印的方式进行制备，实现低成本。
第二实施例
请参阅图4，本申请实施例还提供了一种增强现实显示系统20，该增强现实显示系统20包括图像投影装置300以及第一实施例中的增强现实显示光学器件 10，图像投影装置300用于向增强现实显示光学器件10发出预定窄带波长段的图像光，增强现实显示光学器件10用于透射环境光，还用于反射预定窄带波长处的图像光以成像。图像投影装置300可以是激光显示光机，激光显示光机所发出的图像光可以是三基色的激光图像，以实现极高的反射率，提高成像效果。
为便于说明，请再次参阅图4，图4中实线为图像光的光路，虚线为环境光的光路。由于图像投影装置300可以是激光显示光机，激光光源具有亮度高、发散角小、色域广、能效高等优点，因此可以在功耗较低的情况下，保证较高的发光亮度。此外，此显示系统利用了第一实施例中的增强现实显示光学器件10，对图像投影装置的光线反射率高，且对环境光线透射率高，使其能够在保证高亮度成像效果的情况下，不会影响用户对环境光线的观察。
第三实施例
请参阅图5，本申请实施例提供了一种增强现实显示眼镜30，增强现实现实眼镜30包括镜架500、镜片400以及第二实施例中的增强现实显示系统20。镜架500包括相互连接的镜框520与镜腿支架510，镜片400设置于镜框520中，图像投影装置300设置于镜腿支架510；增强现实显示光学器件10贴附于镜片400内表面。
请一并参阅图5与图6，镜架500为镜片400以及增强现实显示系统10b提供安装基础。在一些实施方式中，镜架500包括相互连接的镜框520与镜腿支架510，镜框520可以是环状结构，镜框520具有两个，两个镜框520相互连接，且呈环状结构的镜框520内部用于安装镜片400。镜腿支架510转动设置于镜框510，同样，镜腿支架510具有两个，两个镜腿支架510分别设置于两个镜框520。
请再次参阅图5，在一些实施方式中，镜片400与镜框520可以具有相同的 外形结构，以满足镜片400与镜框520的配合安装。同样，镜片400可以是两个，两个镜片400分别设置于两个镜框520。镜片400可以是采用玻璃或树脂等光学材料制作而成的具有曲面结构的光学器件，对环境光具有极好的透射率。
具体的，增强现实显示光学器件10贴附于镜片400内表面，即镜片400的朝向镜腿支架510的表面。作为一种实施方式，增强现实显示光学器件10的基底层200的远离微纳光学反射层100的表面贴附于镜片400的内表面。
在一些实施方式中，增强现实显示光学器件10的基底层200还可以直接作为镜片400，直接安装于镜框520，此外基底层200还可以仅作为镜片400的一部分嵌入镜片400中。
同样，为了使增强现实显示眼镜30具有更好的显示效果，增强现实显示系统20同样可以包括两个，两个增强现实显示系统20的增强现实显示光学器件10分别设置于两个镜片400上，两个图像投影装置300分别设置于两个镜框支架510上。且通过合理调节图像投影装置300的投影角度，使增强现实显示光学器件10位于图像光的光路，并且图像光完全投射于增强现实显示光学器件10。
在其他的一些实施方式中，图像投影装置300还可以设置于镜框520，满足使增强现实显示光学器件10位于图像光的光路上，且增强现实现实光学器件10a对图像光具有极高的反射率即可。
第四实施例
请一并参阅图7和图8，本申请实施例还提供了一种增强现实HUD显示系统40，该增强现实HUD显示系统40包括挡风玻璃500以及第二实施例中的增强现实显示系统20。
挡风玻璃500可以是汽车的挡风玻璃，也可以是其他一些设备或建筑等的挡 风玻璃。增强现实显示光学器件10贴附于挡风玻璃500的内表面，增强现实显示系统20中的图像投影装置300可以设置于车内的A柱或者其他可以安装图像投影装置300的部件上，且微纳光学反射层100位于图像投影装置300的光路上。
在一些实施方式中，如图7所示，增强现实显示光学器件10可以仅贴附于挡风玻璃500的一部分区域，当然，增强现实显示光学器件10也可以贴附于挡风玻璃500的全部区域上。具体的，增强现实显示光学器件10贴附于挡风玻璃500的内表面，可以理解的是，挡风玻璃500的内表面即使指挡风玻璃500位于车内的一侧(此处以汽车为例，在其他的一些设备中具有相同的实施方式)。作为一种实施方式，增强现实显示光学器件10的基底层200的远离微纳光学反射层100的表面贴附于挡风玻璃400的内表面。
在一些实施方式中，增强现实显示光学器件10的基底层200还可以直接作为挡风玻璃500，直接安装于车架或者其他设备的安装挡风玻璃500的框架上，此外基底层200还可以仅作为挡风玻璃500的一部分嵌入挡风玻璃500中。在一些实施方式中，图像投影装置300设置于挡风玻璃400内表面的一侧，具体的，例如可以设置于汽车的A柱以及其他的一些固定装置上，满足使增强现实显示光学器件10位于图像投影装置300所发出图像光的光路上即可。
第五实施例
请一并参阅图9和图10，本申请实施例还提供了一种增强现实HUD显示系统50，该增强现实HUD显示系统50包括独立HUD屏幕600和以及第二实施例中的增强现实显示系统20，增强现实显示光学器件10贴附于独立HUD屏幕600的内表面。
其中独立HUD屏幕600可以被配置为可以独立携带的形式，并可以以粘贴等方式固定于汽车等的玻璃上，作为一显示屏幕。例如：独立HUD屏幕600可以粘贴于汽车前挡风玻璃的内表面，并大致位于方向盘的正前方，作为一种抬头显示器，供司乘人员观看。
具体的，增强现实显示光学器件10贴附于独立HUD屏幕的内表面，即位于独立HUD屏幕靠近后方光学系统的一侧(在运用于汽车领域中时，即位于独立HUD屏幕靠600近司乘人员的一侧)。作为一种实施方式，增强现实显示光学器件10的基底层200的远离微纳光学反射层100的表面贴附于独立HUD屏幕600的内表面。
在一些实施方式中，增强现实显示光学器件10的基底层200还可以直接作为独立HUD屏幕600，此外基底层200还可以仅作为独立HUD屏幕600的一部分嵌入独立HUD屏幕600中。在一些实施方式中，图像投影装置300设置于独立HUD屏幕内表面的一侧，具体的，例如可以设置于汽车的A柱以及其他的一些固定装置上，满足使增强现实显示光学器件10位于图像投影装置300所发出图像光的光路上即可。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (11)

  1. 一种增强现实显示光学器件，其特征在于，包括：
    基底层，所述基底层包括第一表面以及与所述第一表面相背的第二表面，所述基底层透射环境光；以及
    微纳光学反射层，所述微纳光学反射层设置于所述基底层的第一表面，所述微纳光学反射层被配置为将处于预定窄带波长段的图像光反射。
  2. 根据权利要求1所述的增强现实显示光学器件，其特征在于，所述微纳光学反射层包括中间层以及纳米光栅层，所述中间层设置于所述基底层的第一表面，所述纳米光栅层设置于所述中间层远离所述第一表面的一侧。
  3. 根据权利要求2所述的增强现实显示光学器件，其特征在于，所述纳米光栅层由多个呈阵列排布的微纳米光栅结构构成，每个所述微纳米光栅结构的折射率大于1.6。
  4. 根据权利要求3所述的增强现实显示光学器件，其特征在于，所述纳米光栅层的光栅周期为200nm～400nm。
  5. 根据权利要求3所述的增强现实显示光学器件，其特征在于，所述纳米光栅层的占空比为0.1～0.9。
  6. 根据权利要求3所述的增强现实显示光学器件，其特征在于，所述纳米光栅层由以下方式制备：以树脂为原料，通过压印的方式在所述中间层上形成所述纳米光栅层。
  7. 根据权利要求3述的增强现实显示光学器件，其特征在于，所述中间层的折射率大于1.6。
  8. 一种增强现实显示系统，其特征在于，包括：
    图像投影装置和如权利要求1-7任一项所述的增强现实显示光学器件；
    所述图像投影装置用于向所述增强现实显示光学器件发出处于预定窄带波长段的图像光；
    所述增强现实显示光学器件用于透射环境光；
    所述增强现实显示光学器件还用于反射所述预定窄带波长段的图像光以成像。
  9. 一种增强现实显示眼镜，包括镜架、镜片和如权利要求8所述的增强现实显示系统，其特征在于，所述镜架包括相互连接的镜框与镜腿支架，所述镜片设置于所述镜框中，所述图像投影装置设置于所述镜腿支架；所述增强现实显示光学器件贴附于所述镜片内表面；
    或者所述镜片作为所述增强现实显示光学器件的基底层。
  10. 一种增强现实显示HUD显示系统，包括挡风玻璃和如权利要求8所述的增强现实显示系统，其特征在于，所述增强现实显示光学器件贴附于所述挡风玻璃内表面；
    或者所述挡风玻璃作为所述增强现实显示光学器件的基底层。
  11. 一种增强现实显示HUD显示系统，包括独立HUD屏幕和如权利要求8所述的增强现实显示系统，其特征在于，所述增强现实显示光学器件贴附于所述独立HUD屏幕内表面；
    或者所述独立HUD屏幕作为所述增强现实显示光学器件的基底层。
PCT/CN2020/142145 2020-03-27 2020-12-31 增强现实显示光学器件、光学系统、眼镜及hud显示系统 WO2021190060A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116203662A (zh) * 2023-03-15 2023-06-02 慕德微纳(杭州)科技有限公司 一种窄带高反膜及增强现实镜片

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106338832A (zh) * 2016-11-09 2017-01-18 苏州苏大维格光电科技股份有限公司 一种单片全息衍射光波导镜片及三维显示装置
CN106501938A (zh) * 2016-11-21 2017-03-15 苏州苏大维格光电科技股份有限公司 一种头戴式增强现实三维显示装置
CN106842397A (zh) * 2017-01-05 2017-06-13 苏州苏大维格光电科技股份有限公司 一种树脂全息波导镜片及其制备方法、及三维显示装置
CN109239920A (zh) * 2017-07-11 2019-01-18 苏州苏大维格光电科技股份有限公司 一种全息波导镜片及增强现实显示装置
US20190187482A1 (en) * 2017-12-18 2019-06-20 Facebook Technologies, Llc Integrated Augmented Reality Head-Mounted Display for Pupil Steering
WO2019221539A1 (ko) * 2018-05-17 2019-11-21 주식회사 프라젠 증강현실 디스플레이 장치
CN212160230U (zh) * 2020-03-27 2020-12-15 深圳光峰科技股份有限公司 增强现实显示光学器件、系统、眼镜及hud显示系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106338832A (zh) * 2016-11-09 2017-01-18 苏州苏大维格光电科技股份有限公司 一种单片全息衍射光波导镜片及三维显示装置
CN106501938A (zh) * 2016-11-21 2017-03-15 苏州苏大维格光电科技股份有限公司 一种头戴式增强现实三维显示装置
CN106842397A (zh) * 2017-01-05 2017-06-13 苏州苏大维格光电科技股份有限公司 一种树脂全息波导镜片及其制备方法、及三维显示装置
CN109239920A (zh) * 2017-07-11 2019-01-18 苏州苏大维格光电科技股份有限公司 一种全息波导镜片及增强现实显示装置
US20190187482A1 (en) * 2017-12-18 2019-06-20 Facebook Technologies, Llc Integrated Augmented Reality Head-Mounted Display for Pupil Steering
WO2019221539A1 (ko) * 2018-05-17 2019-11-21 주식회사 프라젠 증강현실 디스플레이 장치
CN212160230U (zh) * 2020-03-27 2020-12-15 深圳光峰科技股份有限公司 增强现实显示光学器件、系统、眼镜及hud显示系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116203662A (zh) * 2023-03-15 2023-06-02 慕德微纳(杭州)科技有限公司 一种窄带高反膜及增强现实镜片
CN116203662B (zh) * 2023-03-15 2024-05-14 慕德微纳(杭州)科技有限公司 一种窄带高反膜及增强现实镜片

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