CN112415656A - Holographic diffraction waveguide lens and augmented reality color display device - Google Patents
Holographic diffraction waveguide lens and augmented reality color display device Download PDFInfo
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- G—PHYSICS
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/124—Geodesic lenses or integrated gratings
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- G—PHYSICS
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- 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
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- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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- G—PHYSICS
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
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Abstract
The invention provides a holographic diffraction waveguide lens which comprises a lens body and two functional areas positioned on the surface of the lens body, wherein the functional areas are periodic grating structures, the two functional areas are a coupling-in area and a coupling-out area respectively, incident image light is projected to the coupling-in area and is diffracted by the periodic grating structures of the coupling-in area, and diffracted light is conducted and coupled to the coupling-out area along the total reflection of a waveguide and is output after being diffracted by the periodic grating structures of the coupling-out area. The invention also provides an augmented reality color three-dimensional display device applying the holographic diffraction waveguide lens. The holographic diffraction waveguide lens adopts the ultrathin optical lens and is distributed with the grating structure with the nanometer scale, and compared with the traditional geometric optical method, the holographic diffraction waveguide lens has better portability. The augmented reality color three-dimensional display device adopts the holographic diffraction waveguide lens group made of two layers or three layers or multiple layers of waveguide lenses, so that the viewing experience is better.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a holographic diffraction waveguide lens and an augmented reality color three-dimensional display device adopting the same.
Background
The augmented reality technology is a new technology for seamlessly integrating real world information and virtual world information, not only shows the real world information, but also simultaneously displays the virtual information, and the two kinds of information are mutually supplemented and superposed. In visual augmented reality, the user can see the real world around it by re-composing the real world with computer graphics using a head mounted display. With the development of virtual reality and augmented reality technologies, near-to-eye display devices have been rapidly developed, and a method of coupling image light into human eyes using a conventional optical element has been adopted, including the use of a prism, a mirror, a free-form surface, and the like. For example, the thickness of a prism adopted by Google glasses is generally about 10 millimeters, and the field angle is only 15 degrees, so that people can only see a very pocket image after wearing the glasses; the Epson free-form surface prism and the Meta semi-reflecting and semi-transmitting curved surface scheme have larger field angle, but the volume and the thickness are still difficult to reduce, the picture effect and the permeability are common, and the good AR perspective visual effect is difficult to generate. Most of the current mainstream near-eye augmented reality display devices adopt the optical waveguide principle. For example, Lumus implements AR display by an array grating design, which display has a pupil-expanding effect, but there is a shutter effect, affecting the viewing experience. Therefore, the current mainstream display schemes cannot achieve good display effects while achieving the light and thin display units.
Disclosure of Invention
The invention aims to provide a holographic diffraction waveguide lens and an augmented reality color display device adopting the lens.
According to one aspect of the invention, there is provided a holographic diffractive waveguide lens comprising a lens body, two functional areas on a surface of the lens body,
the functional region is a periodic grating structure,
the two functional areas are respectively an in-coupling area and an out-coupling area, incident image light is projected to the in-coupling area, diffracted by the periodic grating structure of the in-coupling area, diffracted light is transmitted and coupled to the out-coupling area along waveguide total reflection, and then diffracted by the periodic grating structure of the out-coupling area and output.
In some embodiments, the shape of the functional region is, but is not limited to, circular, rectangular, conical.
In some embodiments, the functional zones are located on the same surface of the lens body.
In some embodiments, the periodic grating structure includes tilted gratings, volume holographic gratings, and rectangular gratings with wavelength selectivity and high diffraction efficiency.
In some embodiments, the periodic grating structure is a nano-diffraction grating having a period and orientation determined by the wavelength of the incident light, the angle of incidence, the angle of diffraction of the diffracted light, and the azimuth angle of diffraction.
In some embodiments, the nano-diffraction grating is fabricated using holographic interference techniques, photolithography techniques, or nanoimprint techniques.
According to another aspect of the present invention, there is provided a holographic diffraction waveguide lens set, comprising two holographic diffraction waveguide lenses, wherein the two holographic diffraction waveguide lenses are tightly attached in a vertical space, the two holographic diffraction waveguide lenses are a single-channel diffraction waveguide lens and a dual-channel diffraction waveguide lens,
the single-channel diffraction waveguide lens is used for coupling monochromatic image light to waveguide internal conduction, and other color image light penetrates through the single-channel diffraction waveguide lens and enters the double-channel diffraction waveguide lens which is used for coupling other color image light.
In some embodiments, the single channel diffractive waveguide optic is configured to couple green image light into the waveguide for transmission, and blue and red image light is transmitted through the single channel diffractive waveguide optic into the two channel waveguide diffractive optic, which is configured to couple blue image light and red image light.
According to another aspect of the present invention, there is provided another holographic diffractive waveguide lens assembly, comprising three or more holographic diffractive waveguide lenses as described above, wherein three or more of said holographic diffractive waveguide lenses are closely attached in a vertical space,
parameters such as the period, the height, the duty ratio and the like of the nanometer diffraction grating corresponding to each holographic diffraction waveguide lens are different, each holographic diffraction waveguide lens only carries out coupling transmission on one color image light, and the other color image lights do not meet the transmission requirement and cannot form light crosstalk.
In some embodiments, three pieces of the holographic diffractive waveguide lens are used for transmitting light of three color images of red, green and blue, respectively.
According to another aspect of the present invention, there is provided an augmented reality color three-dimensional display device, comprising two sets of the holographic diffractive waveguide lens set and an image source,
the two groups of holographic diffraction waveguide lens groups are respectively arranged corresponding to the left eye and the right eye and are respectively used for transmitting light to the left eye and the right eye;
the image source includes a light source, an optical system, and an image information device for outputting image light.
In some embodiments, the light source of the image source includes a red, green, and blue tricolor point light source and a parallel light source thereof, or a white light point light source and a parallel light source thereof.
In some embodiments, the image source is configured to implement a three-dimensional display, output left-eye image light corresponding to a left eye and right-eye image light corresponding to a right eye,
the left eye image light is coupled to the left holographic diffraction waveguide lens group, and coupled light is output to a left eye; the right eye image light is coupled to the right holographic diffraction waveguide lens group, the coupled light is output to the right eye, the left eye and the right eye receive the output image light simultaneously, and color three-dimensional display is presented in the space in front of the eyes.
In some embodiments, it is applied to traffic driving, childhood education, game entertainment, military training and warfare, shopping areas and product displays, medical care, home video entertainment, virtual fitting of apparel, business meetings, or remote interactions.
The beneficial effects are as follows: the holographic diffraction waveguide lens adopts the ultrathin optical lens and is distributed with the grating structure with the nanometer scale, and compared with the traditional geometric optical method, the holographic diffraction waveguide lens has better portability.
The three-color image light coupling does not interfere with each other, the output light is combined and the color display is realized, and compared with the technologies such as array grating and the like, the viewing experience of the three-color image light coupling device is better.
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FIG. 1 is a schematic cross-sectional view of a holographic diffractive waveguide lens according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of one embodiment of the holographic diffractive waveguide lens of FIG. 1;
FIG. 3 is a schematic structural diagram of a holographic diffractive waveguide lens according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a holographic diffractive waveguide lens set according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the holographic diffractive waveguide guide set of FIG. 4;
FIG. 6 is a schematic diagram of the holographic diffractive waveguide guide set of FIG. 4;
FIG. 7 is a schematic diagram of a holographic diffractive waveguide lens set according to another embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an augmented reality color three-dimensional display device according to an embodiment of the invention;
FIG. 9 is a schematic diagram of an augmented reality color three-dimensional display device according to an embodiment of the invention applied to traffic driving;
FIG. 10 is a schematic diagram of an augmented reality color three-dimensional display device according to an embodiment of the present invention applied to children education;
FIG. 11 is a schematic view of an augmented reality color three-dimensional display device according to an embodiment of the present invention applied to the fields of game play, military training, war, etc.;
FIG. 12 is a schematic diagram of an augmented reality color three-dimensional display device according to an embodiment of the present invention applied to the shopping area or product display;
figure 13 is a schematic view of an augmented reality color three-dimensional display device according to an embodiment of the present invention applied to the medical field,
FIG. 14 is a schematic diagram of an augmented reality color three-dimensional display device applied to the field of home video entertainment according to an embodiment of the invention,
figure 15 is a schematic diagram of an augmented reality color three-dimensional display device according to an embodiment of the present invention applied to virtual fitting of clothing,
FIG. 16 is a schematic diagram of an augmented reality color three-dimensional display device applied to the field of business conferences according to an embodiment of the invention
Fig. 17 is a schematic diagram of an augmented reality color three-dimensional display device according to an embodiment of the invention applied to the field of remote interaction.
Detailed Description
As shown in fig. 1, the holographic diffractive waveguide lens 1 includes a lens body 10, and two functional areas, a coupling-in area 11 and a coupling-out area 13, are present on the surface of the lens body 10. The light beam is projected to the coupling-in area 11, and the coupled light beam enters the coupling-out area 13 through the grating diffraction and the waveguide total reflection, and the light beam is output in a certain direction. Wherein the functional region is composed of a periodic nano-grating structure, including any one or more of a tilted grating 61, a bulk grating or a rectangular grating 62. Incident image light is coupled and output to human eyes in the coupling-out area 13 through grating diffraction of the coupling-in area 11 and total reflection in the waveguide, and augmented reality display of the holographic diffraction waveguide lens is achieved. Further, the image light enters from the waveguide lens coupling-in area 11 and exits from the coupling-out area 13, thereby realizing an expansion of the field of view in the horizontal direction. The shape of the two functional regions of the holographic diffractive waveguide lens 1 may be circular, rectangular, tapered, or the like, and is not limited to the above shape.
Fig. 2 schematically shows a holographic diffractive waveguide lens 1 according to an embodiment of the present invention. As shown in fig. 2, two functional regions of the hologram diffraction waveguide lens 1 are formed by the inclined grating 61, and the wavelength selective function is realized by designing parameters such as the period, depth, duty ratio, and inclination angle of the inclined grating 61 to efficiently select light of a specific wavelength or wavelength band. The single lens only conducts the image light with a certain color, and the rest color image light enters the next layer of holographic diffraction waveguide lens through the single lens, so that the mutual noninterference between the light rays is realized.
In other embodiments, a three-zone type or a multi-zone type can be adopted, and referring to fig. 3, specifically, the holographic diffractive waveguide lens 1 includes a lens body 10, a coupling-in zone 11, a turning zone 12 and a coupling-out zone 13 disposed on the lens body 10. The incident image light is coupled to the diffraction waveguide lens 1, firstly enters the coupling-in area 11, is diffracted by the nano structure, the angle of the diffraction light meets the requirement of waveguide total reflection, the light is conducted along the total reflection direction, is coupled to the turning area 12, is turned by the diffraction of the nano structure, is conducted to the coupling-out area 13, and is output to human eyes by the diffraction of the nano structure. The image light enters from the waveguide lens coupling-in area 11, is conducted to the coupling-out area 13 through the turning area 12, and exits from the coupling-out area 13, so that the field of view in the horizontal direction and the vertical direction is expanded.
As shown in fig. 4, image light is emitted from the display screen 3, has a certain spread angle, and is focused by the lens 4 into coupled light beams, which include red, green, and blue image light, and contain color image information. The color holographic diffraction waveguide consists of two layers of holographic diffraction waveguide lenses. The two layers of holographic diffraction waveguide lens are a first diffraction waveguide lens 101 and a second diffraction waveguide lens 102 respectively. The first diffractive waveguide lens 101 is a single channel diffractive waveguide lens and the second diffractive waveguide lens 102 is a dual channel diffractive waveguide lens. The single-channel diffraction waveguide lens is used for coupling monochromatic image light to the waveguide for conduction, and the rest color image light enters the double-channel diffraction waveguide lens through the single-channel diffraction waveguide lens. Preferably, the single channel diffractive waveguide optic is configured to couple the green image light into the waveguide for transmission, and the blue and red image light is transmitted through the single channel diffractive waveguide optic into the dual channel diffractive waveguide optic. The two-channel diffractive waveguide optic is used to couple the remaining color image light, preferably the two-channel diffractive waveguide optic is used to couple the blue image light and the red image light. The first diffractive waveguide lens 101 and the second diffractive waveguide lens 102 are vertically and closely attached to each other in space, and are used for transmitting green image light and red and blue image light respectively. The functional areas of the two holographic diffraction waveguide lenses are formed by the nanometer diffraction gratings, parameters such as the period, the height, the duty ratio and the like of the nanometer diffraction gratings corresponding to different lenses are different, the single-channel diffraction waveguide lens only performs coupling transmission on one color image light, and the rest color image lights do not meet the conduction requirement and cannot form light crosstalk. The light beam is coupled to the waveguide at a certain diffusion angle, the upper surface or the lower surface (not shown) of the waveguide is provided with a functional structure area, and the light beam is coupled to the waveguide and directionally outputs image light to human eyes through total reflection and diffraction.
As shown in fig. 5, the two pieces of holographic diffractive waveguide lens are a first diffractive waveguide lens 101 and a second diffractive waveguide lens 102, respectively. The first diffractive waveguide lens 101 is a single channel diffractive waveguide lens and the second diffractive waveguide lens 102 is a dual channel diffractive waveguide lens. The single-channel diffraction waveguide lens is used for coupling monochromatic image light to the waveguide for conduction, and the rest color image light enters the double-channel waveguide diffraction lens through the single-channel diffraction waveguide lens. Preferably, the single channel diffractive waveguide optic is configured to couple the green image light into the waveguide for transmission, and the blue and red image light is transmitted through the single channel diffractive waveguide optic into the dual channel waveguide diffractive optic. The two-channel diffractive waveguide optic is used to couple the remaining color image light, preferably the two-channel diffractive waveguide optic is used to couple the blue image light and the red image light.
As shown in fig. 6, the two functional regions of the single-channel diffractive waveguide lens are formed by the tilted grating 61, and the wavelength selective function is realized by designing parameters such as the period, depth, duty ratio, and tilt angle of the tilted grating 61 to efficiently select light of a specific wavelength or wavelength band. Preferably, the green image light is coupled and then guided by bending in the waveguide, without affecting the blue and red image light, which is transmitted through the single channel diffractive waveguide lens to the two channel diffractive waveguide lens. Two functional areas of the two-channel diffraction waveguide lens are formed by the rectangular grating 62, and the light of blue and red wave bands is selected efficiently by designing parameters such as the period, the depth, the duty ratio and the like of the rectangular grating 62, so that the two-channel light diffraction is realized. The single-channel diffraction waveguide lens only conducts certain color image light, and other color image light enters the next layer of double-channel diffraction waveguide lens through the single-channel diffraction waveguide lens, so that mutual noninterference between light rays is realized.
In the second embodiment, as shown in fig. 7, the color hologram diffraction waveguide is constituted by three layers of hologram diffraction waveguide lenses, which are a first diffraction waveguide lens 101, a second diffraction waveguide lens 102, and a third diffraction waveguide lens 103, respectively. The first diffractive waveguide lens 101, the second diffractive waveguide lens 102 and the third diffractive waveguide lens 103 are closely attached in a vertical space and are respectively used for transmitting red, green and blue image light rays. As shown in fig. 7, image light is emitted from the display screen 3, has a certain spread angle, and is focused and coupled through the lens 4 into light beams, which include red, green and blue three-color image light and contain color image information. The functional areas of the three holographic diffraction waveguide lenses are formed by the nanometer diffraction gratings, parameters such as the period, the height, the duty ratio and the like of the nanometer diffraction gratings corresponding to different lenses are different, different lenses only carry out coupling transmission on one color image light, and the rest color image lights do not meet the transmission requirement and cannot form light crosstalk. The light beam is coupled to the waveguide at a certain diffusion angle, the upper surface or the lower surface (not shown) of the waveguide is provided with a functional structure area, and the light beam is coupled to the waveguide and directionally outputs image light to human eyes through total reflection and diffraction.
As shown in fig. 8, the color three-dimensional display device 5 includes a left holographic diffractive waveguide lens group 51, a right holographic diffractive waveguide lens group 52, and an image source. The left holographic diffraction waveguide lens group 51 and the right holographic diffraction waveguide lens group 52 correspond to the left eye and the right eye, respectively, and are used for transmitting light to the left eye and the right eye, respectively. The image source includes a light source, an optical system, and an image information device for outputting image light. The light source of the image source comprises a red, green and blue tricolor point light source or a parallel light source, or a white light point light source or a parallel light source. Preferably, the image source is configured to implement a three-dimensional display, and includes a left-eye image light coupled to the left holographic diffractive waveguide lens set 51, and outputting the coupled light to the left eye; the right eye image light is coupled to the right holographic diffraction waveguide lens group 52, the coupled light is output to the right eye, the left eye and the right eye receive the output image light simultaneously, and color three-dimensional display is presented in the space in front of the eyes.
The virtual reality and augmented reality display technology can be applied to social activities such as video games, event live broadcasting, video entertainment, medical care, real estate, retail, education, engineering and military affairs.
As shown in fig. 9, the virtual image in the figure is, for example, an image-text prompt of "600 meters of a rear star road" and a right turn driving mark on an actual road surface, and the virtual image is accurately projected to a position matched with a real scene through adjustment of a focal length, so that the virtual image and the real scene are organically fused together, natural and accurate, real augmented display is realized, and traffic accidents caused by switching of visual scenes in the conventional vehicle-mounted navigation system can be effectively avoided.
As shown in fig. 10, the invention is applied to children education, and can be applied to any other multimedia information display fields, and the fields of movies, televisions and the like, two children watch or share the consultation about dinosaur together by the device of the invention, including text display and dinosaur stereoscopic display.
As shown in fig. 11, the building and the person may be fully virtual, or may be a reality enhancement mode in which virtual and real things are merged. The method is applied to game entertainment and military training, can greatly improve the fidelity of games and military training, improve the fun and playability of games, and improve the actual combat effect of military training. The system is applied to military combat, and by cloud information acquisition and information interaction, soldiers can quickly acquire information such as positions, motions, combat characteristics and the like of enemy and our army on a battlefield and battlefield appearance information, so that the information acquisition capacity, real-time judgment accuracy and unified combat coordination of the soldiers are greatly improved, and the overall combat power of the military is improved.
As shown in fig. 12, the present invention can truly and comprehensively understand the appearance information of the product, and combine the text and sound information to realize a brand new shopping experience or display effect.
As shown in fig. 13, the invention can realize more abundant information communication between the doctor and the patient, and as shown in the figure, the doctor can visually see the three-dimensional information of the patient to know the state of illness and synchronously display character information such as diagnosis results in a window.
As shown in FIG. 14, the present invention can achieve a visual experience that is nearly as immersive as well as greatly reduce the symptoms of visual fatigue.
As shown in fig. 15, the try-on person can obtain real visual experience similar to looking into a mirror by the head-mounted three-dimensional display device of the present invention by performing three-dimensional scanning or multi-angle photographing on the try-on person to perform three-dimensional synthesis, and then fusing the garment with the three-dimensional virtual image of the try-on person to obtain a three-dimensional image of wearing a new garment.
As shown in FIG. 16, the present invention can truly and vividly display the product or document to be discussed, and has more intuitive advantages compared with the conventional ppt. This is especially true for large equipment displays.
As shown in fig. 17, in the figure, in the case that a parent and a woman go through the remote interaction to get the chess, each party only needs to put the own chess pieces, then the own chess pieces are shot dynamically, even together with the appearance of the chess player himself (in a three-dimensional scanning mode, a multi-angle video or a photographing mode) through a digital camera additionally arranged on the chess player, and are subjected to three-dimensional conversion, and finally the chess pieces are projected to the front of the other party through the chess shooting method, so that the chess pieces are face to face, and have high simulation feeling.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and similar parts between the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (14)
1. A holographic diffractive waveguide lens comprising a lens body, two functional areas on a surface of said lens body,
the functional region is a periodic grating structure,
the two functional areas are respectively an in-coupling area and an out-coupling area, incident image light is projected to the in-coupling area, diffracted by the periodic grating structure of the in-coupling area, diffracted light is transmitted and coupled to the out-coupling area along waveguide total reflection, and then diffracted by the periodic grating structure of the out-coupling area and output.
2. The holographic diffractive waveguide lens according to claim 1, characterized in that the shape of the functional area is, but not limited to, circular, rectangular, conical.
3. The holographic diffractive waveguide lens according to claim 1, characterized in that said functional areas are located on the same surface of the lens body.
4. The holographic diffractive waveguide lens according to claim 1, wherein the periodic grating structure comprises tilted gratings, volume holographic gratings and rectangular gratings with wavelength selectivity and high diffraction efficiency.
5. The holographic diffractive waveguide lens according to claim 4, wherein the periodic grating structure is a nano-diffraction grating having a period and orientation determined by the wavelength of incident light, the angle of incidence, the angle of diffraction of diffracted light, and the azimuth angle of diffraction.
6. The holographic diffractive waveguide lens according to claim 5, wherein the nano-diffraction grating is fabricated using holographic interference technology, photolithography technology or nano-imprinting technology.
7. A holographic diffractive waveguide lens assembly comprising two holographic diffractive waveguide lenses according to any of claims 1-6, closely attached in vertical space, said holographic diffractive waveguide lenses being a single channel diffractive waveguide lens and a dual channel diffractive waveguide lens,
the single-channel diffraction waveguide lens is used for coupling monochromatic image light to waveguide internal conduction, and other color image light penetrates through the single-channel diffraction waveguide lens and enters the double-channel diffraction waveguide lens which is used for coupling other color image light.
8. The set of holographic diffractive waveguide lenses of claim 7, wherein said single channel diffractive waveguide lens is configured to couple green image light into a waveguide for transmission, blue and red image light is transmitted through said single channel diffractive waveguide lens into said dual channel waveguide diffractive lens, said dual channel diffractive waveguide lens is configured to couple blue image light and red image light.
9. A holographic diffractive waveguide lens assembly comprising three or more holographic diffractive waveguide lenses according to any of claims 1 to 6, wherein three or more of said holographic diffractive waveguide lenses are closely attached in vertical space,
parameters such as the period, the height, the duty ratio and the like of the nanometer diffraction grating corresponding to each holographic diffraction waveguide lens are different, each holographic diffraction waveguide lens only carries out coupling transmission on one color image light, and the other color image lights do not meet the transmission requirement and cannot form light crosstalk.
10. The set of holographic diffractive waveguide lenses of claim 9, wherein three said holographic diffractive waveguide lenses are configured to transmit red, green and blue color image light, respectively.
11. An augmented reality color three-dimensional display device comprising two sets of the holographic diffractive waveguide lens set according to any one of claims 7 to 10 and an image source,
the two groups of holographic diffraction waveguide lens groups are respectively arranged corresponding to the left eye and the right eye and are respectively used for transmitting light to the left eye and the right eye;
the image source includes a light source, an optical system, and an image information device for outputting image light.
12. The augmented reality color three-dimensional display device of claim 11,
the light source of the image source comprises a red, green and blue tricolor point light source and a parallel light source thereof, or a white light point light source and a parallel light source thereof.
13. The augmented reality color three-dimensional display device of claim 12,
the image source is configured to implement three-dimensional display, output left-eye image light corresponding to a left eye and right-eye image light corresponding to an eye,
the left eye image light is coupled to the left holographic diffraction waveguide lens group, and coupled light is output to a left eye; the right eye image light is coupled to the right holographic diffraction waveguide lens group, the coupled light is output to the right eye, the left eye and the right eye receive the output image light simultaneously, and color three-dimensional display is presented in the space in front of the eyes.
14. An application of an augmented reality color three-dimensional display device is characterized in that it is applied to traffic driving, childhood education, game entertainment, military training and war, shopping field and product display, medical treatment, home video entertainment, dress virtual try-on, business meeting or remote interaction.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113009698A (en) * | 2021-03-29 | 2021-06-22 | 奥提赞光晶(山东)显示科技有限公司 | Color display system and method and AR glasses |
| CN114355613A (en) * | 2022-01-06 | 2022-04-15 | 西湖大学 | Optical device for diffraction waveguide type augmented reality glasses and application |
| CN114488523A (en) * | 2022-01-28 | 2022-05-13 | 东南大学 | Optical display system and method for expanding holographic display eye box and field angle |
| WO2024077907A1 (en) * | 2022-10-12 | 2024-04-18 | 深圳市光途显示科技有限公司 | Display device, virtual image display method, and manufacturing method for display device |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009698A (en) * | 2021-03-29 | 2021-06-22 | 奥提赞光晶(山东)显示科技有限公司 | Color display system and method and AR glasses |
| CN114355613A (en) * | 2022-01-06 | 2022-04-15 | 西湖大学 | Optical device for diffraction waveguide type augmented reality glasses and application |
| CN114488523A (en) * | 2022-01-28 | 2022-05-13 | 东南大学 | Optical display system and method for expanding holographic display eye box and field angle |
| WO2024077907A1 (en) * | 2022-10-12 | 2024-04-18 | 深圳市光途显示科技有限公司 | Display device, virtual image display method, and manufacturing method for display device |
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