CN111399228A - Near-to-eye display optical system - Google Patents
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- CN111399228A CN111399228A CN202010381863.3A CN202010381863A CN111399228A CN 111399228 A CN111399228 A CN 111399228A CN 202010381863 A CN202010381863 A CN 202010381863A CN 111399228 A CN111399228 A CN 111399228A
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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
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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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
- G02B2027/0178—Eyeglass type
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Abstract
A near-to-eye display optical system relates to the field of optical engineering, solves the problems of small field angle, small exit pupil diameter and heavy system of the existing AR glasses, and comprises a display system and a spherical reflector; the spherical reflector has two surfaces, the first surface is a partial reflection surface, and the second surface is a transmission surface; a display system is arranged in front of the pupil, the display system is positioned on the focal plane of the spherical reflector, and the spherical centers of the display system and the spherical reflector are both positioned within 1cm of the center of the pupil; the display system comprises linear array display pixels adhered to the transparent substrate, a substrate extension part at the outer edge of the transparent substrate, an outer frame, a driving system and an electronic control system; the driving system comprises a driven gear, a driving gear, a rotary bearing and a motor; the invention can realize large field angle, large exit pupil diameter and high resolution, keeps the glasses light, has simple manufacture, low cost, easy realization, fixed parts and stable structure, and has no stray light interference.
Description
Technical Field
The invention relates to the field of optical engineering, in particular to a near-to-eye display optical system.
Background
Near-eye display systems are capable of providing virtual images to humans, the most important of which is Augmented Reality (AR), a new technology that "seamlessly" integrates real world information and virtual world information. Augmented reality glasses are the primary implementation of AR. Which can provide a user with a large picture and a 3D effect. The method has the potential to replace the prior display and calculation terminals such as mobile phones, computers, televisions and the like, and has very wide application prospect.
At present, a plurality of AR technologies including an off-axis catadioptric structure, a free-form surface prism, waveguide glasses and the like are difficult to solve the contradiction between a large field angle, a large exit pupil diameter and volume due to the constraint of Lagrangian invariants. The off-axis catadioptric structure is generally helmet-shaped and heavy. The free-form surface prism has a small field angle and small exit pupil diameter, and the system is thick and heavy. Although the waveguide AR can enlarge the exit pupil diameter, it is difficult to make the angle of view large, and the energy efficiency is low. None of the prior art addresses the conflict between optical performance and system volume and mass.
Microsoft discloses a scheme based on a rotating display (WO2019059991a 1). In contrast to this, this solution uses a lens array or lenses as means for focusing the light beam, which lens or lens array has no symmetry between the rotating display and the eye pupil for different fields of view. The system is still bulky.
Disclosure of Invention
The invention provides a near-to-eye display optical system, aiming at solving the problems of small field angle, small exit pupil diameter and heavy system of the existing AR glasses.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: a near-to-eye display optical system is characterized in that a display system is arranged in front of a pupil at a reference position, and a spherical reflection lens is arranged in front of the display system;
the display pixels in the display system are distributed on the convex surface, the display pixels in the display system emit light to the spherical reflector, and the spherical reflector reflects the light to the pupil at the reference position; by utilizing the visual persistence effect of human eyes, the display system generates images by emitting light in motion, and the images are amplified and reflected to the pupils at the reference position through the spherical reflection lens.
A near-eye display optical system comprises a display system and a spherical reflector; the spherical reflection lens is provided with two surfaces, the first surface is a partial reflection surface and is used for amplifying and reflecting an image on a display system to the reference position pupil, the second surface is a transmission surface and is used for correcting ambient light to adapt to the degree of a wearer, and the positions of the partial reflection surface and the transmission surface can be interchanged;
a display system is arranged in front of a pupil at a reference position, a spherical reflection lens is arranged in front of the display system, and the display system is composed of a hole-shaped structure array and an array outer area which are distributed on a spherical transparent substrate;
the area outside the array is a display pixel distribution area, and light emitted by the display pixels enters the pupil at the reference position through the porous structure array after being reflected by the spherical reflection lens.
A near-eye display optical system, characterized by: comprises a display system and a spherical reflector;
a display system is arranged in front of a pupil at a reference position, and a surface reflecting lens is arranged in front of the display system;
the display system is composed of a transparent display screen alone or a combination of a dynamic shading layer and the transparent display screen, wherein the dynamic shading layer is positioned on one side of human eyes and is configured to shade the light of the transparent display screen directly towards one side of the human eyes and transmit the light reflected by the spherical reflection lens.
The spherical mirror plate has two faces: the first surface is a partial reflecting surface and is used for amplifying and reflecting an image on the display system to a reference position pupil; the second surface is a transmission surface used for correcting the ambient light to adapt to the degree of the wearer; the positions of the partially reflective surface and the transmissive surface may be interchanged.
Compared with the prior art, the near-to-eye display optical system at least has the following beneficial effects: the near-to-eye display optical system can realize large field angle, large exit pupil diameter and high resolution, and keep the glasses light.
The near-to-eye display system can realize a field angle larger than 100 degrees, the diameter of an exit pupil can be larger than 8mm, the resolution can reach 2um pixels, the resolutions of different fields are kept consistent, and meanwhile, the system is small in overall size and similar to glasses in appearance.
The near-to-eye display optical system adopts a linear array display pixel rotation mode, is simple to manufacture, low in cost and easy to realize.
The near-to-eye display optical system provided by the invention adopts the hole-shaped display screen, and has the advantages that the near-to-eye display optical system is a fixed part, is stable in structure and does not have stray light interference.
The near-to-eye display optical system provided by the invention combines the transparent display screen and the dynamic shading screen, and has the advantages that the near-to-eye display optical system is a fixed part, has a stable structure and is relatively easy to manufacture.
Drawings
Fig. 1 is a schematic diagram illustrating an overall structure of a near-eye display optical system according to the present invention;
FIG. 2 is a diagram illustrating a modulation function curve of a near-eye display optical system according to the present invention;
FIG. 3 is a schematic diagram of a display system having a protective layer and using rotating linear arrays;
FIG. 4 is a schematic diagram of a display system having a row of linear array pixels;
FIG. 5 is a schematic structural diagram of a cross-shaped linear array pixel display system;
FIG. 6 is a schematic diagram of a pixel display system of a Mi-word line array;
FIG. 7 is a block diagram of a driving system for a near-eye display optical system according to the present invention; wherein, fig. 7a is a schematic structural view driven by a gear to rotate; FIG. 7b is a schematic view of a rotary bearing;
FIG. 8 is a schematic diagram of a gear drive of a near-eye display optical system according to the present invention with the drive gear in the neutral position;
FIG. 9 is a schematic diagram illustrating a positional relationship between a stator coil and a permanent magnet in a near-eye display optical system according to the present invention;
FIG. 10 is a schematic diagram illustrating the rotation of the magnetic levitation coil in the near-eye display optical system according to the present invention;
FIG. 11 is a schematic diagram of a display system in a near-eye display optical system according to another configuration of the present invention; FIG. 11a is a schematic structural diagram of a hole-shaped display system; FIG. 11b is a schematic diagram of a square display system; FIG. 11c is a schematic diagram of a hexagonal display system;
FIG. 12 is a schematic diagram of another near-eye display optical system using a transparent display screen and a dynamic light-shielding layer according to the present invention.
In the figure: 1. the display system comprises 1-1 part of a display system, 1-2 parts of a transparent substrate, 1-2 parts of a substrate extension part, 1-3 parts of an outer frame, 1-4 parts of a linear array display pixel, 1-5 parts of an electronic control system, 1-6 parts of a control connecting line, 1-7 parts of a driven gear, 1-8 parts of a driving gear, 1-9 parts of a rotary bearing, 1-9-1 parts of a rotary bearing rotating part, 1-9-2 parts of a rotary bearing fixing part, 1-9-3 parts of a bearing ball, 1-10 parts of a driving motor, 1-11 parts of a permanent magnet, 1-12a parts of a stator coil, 1-12b parts of a magnetic suspension coil, 1-13 parts of a circular hole array, 1-14 parts of an area outside the circular hole array, 1-15 parts of a square hole array, 1, 1-17 parts of polygonal hole array, 1-18 parts of area outside the polygonal hole array, 1-19 parts of dynamic shading layer, 1-19-1 parts of shading area, 1-19-2 parts of transparent area, 1-20 parts of transparent display screen, 2 parts of spherical reflection lens, 2-1 parts of partial reflection surface, 2-2 parts of transmission surface, 2-3 parts of picture frame, 3 parts of reference position pupil, 4 parts of ambient light, 5 parts of light emitted by display system, 6 parts of light overlapped by the ambient light and the display system, 7 parts of transparent thin layer, 8 parts of connecting piece, 9 parts of glasses leg.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In a first embodiment, which is described in conjunction with fig. 1 to 10, a near-eye display optical system includes a display system 1 and a spherical mirror 2; a display system 1 is arranged in front of a pupil 3 at a reference position, and a spherical mirror 2 is arranged in front of the display system 1; the display pixels in the display system 1 are distributed on the convex surface, the display pixels in the display system 1 emit light to the spherical reflector 2, and the spherical reflector 2 reflects the light to the pupil 3 at the reference position; the display system 1 generates an image by emitting light in motion using the effect of human visual persistence, and enlarges and reflects the image to the reference position pupil 3 through the spherical mirror 2. The spherical mirror 2 has two surfaces, the first surface is a partial reflection surface 2-1 used for amplifying an image on the display system 1 and placing the image in a visible range of human eyes, the reflectivity can be between 1% and 99%, and the second surface is a transmission surface 2-2 used for correcting ambient light to adapt to the degree of a wearer.
The positions of the partial reflecting surface and the transmission surface of the spherical reflecting lens 2 can be interchanged, the radius of the spherical surface of the reflecting surface is within the range of 10mm-90mm, and the radius error is less than 45 percent of the radius value;
the spherical radius of the display pixel distribution in the display system 1 is within the range of 5mm-45mm, and the radius error of the display pixel distribution is less than 45% of the spherical radius value; a display system 1 is arranged in front of a pupil 3 at a reference position, a spherical mirror 2 is arranged in front of the display system 1, the display system 1 is positioned on the focal plane of the spherical mirror 2, the centers of the display system 1 and the spherical mirror 2 are both near the center of the pupil 3 at the reference position, and the range is within 1 cm;
by way of example, with the present embodiment, the system entrance pupil size is set to 8mm, the field angle is set to 90 °, and the following table lists one of the possible optical parameters:
the system obtained in the above example can have a transfer function value of more than 0.2 at 100lp/mm as shown in fig. 2, and therefore, this embodiment can obtain a very high resolution. The data prove that the optical performance of the system is extremely excellent, the main reason is that the system keeps the highest symmetry, the Lagrangian invariant does not change along with the increase of the field of view, the burden of the increase of the field of view on the optical system is completely eliminated, and the field of view can reach more than 100 degrees.
In the embodiment described with reference to fig. 3, it is preferable to mount a protective transparent sheet 7 on the side close to the eyes of a person in order to avoid touching the rotating display system with other objects or persons.
In this embodiment, the display system 1 includes a driving motor for rotating the display system and an electronic control system for controlling the display of the display system, and the electronic control system loads corresponding image information and drives the display pixels to emit light according to the movement position of the display system 1.
The embodiment is described with reference to fig. 4 to 7, the display system 1 is generated by linear array display pixels 1-4 through rotation, the display system 1 comprises linear array display pixels 1-4 adhered on a spherical transparent substrate 1-1 or a rigid linear substrate, substrate extension parts 1-2 at the outer edges of the transparent substrate, outer frames 1-3, a driving system and an electronic control system 1-5; the driving system comprises driven gears 1-7, driving gears 1-8, rotary bearings 1-9 and motors 1-10; an electronic control system 1-5 and control connection lines 1-6 may be disposed on the base extension 1-2. The electronic control system 1-5 is connected with the linear array display pixel 1-4 through a control connecting line.
The outer edge of the base extension 1-2 is in contact with the inner edge of the rotary bearing 1-9, and the base extension 1-2 protrudes from the rotary bearing 1-9 by a length, for example, 1-10mm, where the driven gear 1-7 is mounted. The outer edge of the rotary bearing 1-9 is contacted with the inner side of the outer frame 1-3, and the outer side of the outer frame 1-3 is rigidly connected with the spherical reflection lens 2 through a connecting piece 8; the motors 1-10 are fixed on the outer frames 1-3 at positions close to the glasses legs; the front end of the motor 1-10 is connected with a driving gear 1-8;
the rotation speed of the linear array display pixels 1-4 is controlled by the motors 1-10, the rotation speed can be monitored in real time by a driving system, input images are adjusted, and finally, coherent pictures are displayed.
The width of the linear array display pixels 1-4 is smaller than the diameter of the pupil of the human eye, the linear array display pixels can be formed by a single-row or multi-row linear micro-pixel point array, light emitted by the linear array display pixels 1-4 is reflected by a part of reflecting surface 2-1 to enter the human eye for imaging, and the width of the linear array display pixels 1-4 is smaller than the pupil, so that the reflected light part can enter the human eye for imaging. Obviously, the smaller the width of the linear array display pixels 1-4, the more light intensity enters the human eye. Due to the persistence of vision of the human eye, the human eye will perceive that the images are coherent when displaying more than 24 pictures per second, and of course, the more pictures displayed per second the human eye will perceive that the images are coherent. In this method, the speed of rotation determines how many frames are displayed per second. If there is only one line display element, as shown in fig. 4, the human eye will perceive the image as continuous, 12 revolutions per second, and to reach 60Hz, the rotation speed is 30 revolutions per second. Obviously, the required rotating speed can be further reduced by increasing the number of the linear array display pixels. As shown in fig. 5, when two linear array display pixels are arranged in a cross, the rotation speed to achieve continuity is 6 turns per second, and the rotation speed to achieve 60Hz is 15 turns per second. As shown in fig. 6, when 4 linear array display pixels are arranged in a meter shape, the rotation speed for achieving continuous display is 3 turns per second, and the rotation speed for achieving 60Hz is 7.5 turns per second.
In the present embodiment, in order to reduce the overall weight of the system, the driving gears 1 to 8 may be placed between the two display systems, and the two display systems may be driven to rotate at the same time.
In the present embodiment, in order to make the structure more compact, the outer edge of the extension part 1-2 of the display system substrate is provided with the protruding part of the protruding rotary bearing 1-9, which is provided with the permanent magnet 1-11, and the outer frame 1-3 is provided with the stator coil 1-12a as the stator, without additional motor driving, and the coil and the arranged permanent magnet 1-11 form a motor system after being electrified, which can rotate by itself.
In the embodiment, in order to reduce friction and realize non-contact rotation, magnetic suspension coils 1-12b are arranged on outer frames 1-3 of a display system, a gap is reserved between the outer frame of a bearing and the inner sides of the outer frames 1-3 of the display system, the magnetic suspension coils 1-12b and stator coils 1-12a can be arranged in the outer frames 1-3 in a crossed manner, after the magnetic suspension coils 1-12b are electrified, a rotating part (the display system 1) can be controlled to float in the air to rotate, and after the rotary bearing is powered off, sliding friction between the display system and the outer frames is avoided, so that the display system is protected.
In this embodiment, the connecting member 8 may be a connecting member made of metal or nonmetal material and having a radian. The shape is flexible since the base extension 1-2 has no optical effect. In this embodiment, the outer frame 1-3 and the frame 2-3 can be designed as one body by the shape design of the outer frame.
In this embodiment, the power supply method of the electronic control system 1-5 may be: the method of using the electric motor brush and the power supply integrated inside the electronic control system or between the rotating part and the mirror frame supply power to the control system by means of wireless electromagnetic induction.
In a second embodiment, the present embodiment is described with reference to fig. 1 and 11, and is another example of the near-eye display optical system according to the first embodiment: comprises a display system 1 and a spherical mirror 2;
the spherical mirror 2 has two surfaces, the first surface is a partial reflection surface 2-1 used for amplifying an image on the display system 1 and placing the image in a visible range of human eyes, the reflectivity can be between 1% and 99%, and the second surface is a transmission surface 2-2 used for correcting ambient light to adapt to the degree of a wearer. The positions of the partial reflecting surface and the transmission surface can be interchanged;
a display system 1 is arranged in front of a pupil 3 at a reference position, a spherical mirror 2 is arranged in front of the display system 1, the display system 1 is positioned on the focal plane of the spherical mirror 2, the centers of the display system 1 and the spherical mirror 2 are both near the center of the pupil 3 at the reference position, and the range is within 1 cm; the display system 1 consists of a hole-shaped structure array distributed on a spherical transparent substrate and an area outside the array; the area outside the array is a display pixel distribution area, and light emitted by the display pixels enters the pupil 3 at the reference position through the hole-shaped structure array after being reflected by the spherical reflection lens 2. The array of pore structures is interchangeable with the area outside the array, i.e.: the hole-shaped structure array is used as a pixel distribution area, and the area outside the array is used as a light transmission area.
Referring to fig. 11a, the display system 1 is composed of an array of circular holes 1-13 distributed on a spherical surface and areas 1-14 outside the array of circular holes, the array of circular holes can transmit light reflected by a reflector and ambient light 4, which can be air, transparent glass or resin or a transparent optical element capable of reducing diffraction effect. The area outside the array is a display pixel distribution area. Light emitted by the display pixels enters the human eye through the array of apertures after being reflected by the mirror. Obviously, the hole array can also be a pixel distribution area, and a light transmission area is arranged outside the array. The pixel area is not transparent, and light can not directly enter human eyes through pixel luminescence so as to eliminate stray light interference.
Referring to fig. 11b, the display system 1 is composed of an array of square holes 1-15 distributed on a spherical surface and areas 1-16 outside the array of square holes, wherein the array of square holes can transmit light reflected by a reflector and ambient light, and the array of square holes can be air, transparent substance or transparent optical element capable of reducing diffraction effect. The area outside the array is a display pixel distribution area. Light emitted by the display pixels enters human eyes through the square hole array after being reflected by the reflecting mirror. Obviously, the square hole array can also be a pixel distribution area, and a light transmission area is arranged outside the array. The pixel area is not transparent, and light can not directly enter human eyes through pixel luminescence so as to eliminate stray light interference.
Referring to fig. 11c, the display system 1 of the present embodiment is composed of a polygonal hole 1-17 array distributed on a spherical surface or regions 1-18 outside the polygonal hole array, which can transmit light reflected by a reflector and ambient light, and which can be air, a transparent substance, or a transparent optical element capable of reducing diffraction effect. The area outside the array is a display pixel distribution area. Light emitted by the display pixels enters human eyes through the polygonal hole array after being reflected by the reflector. Obviously, the polygonal hole array can also be a pixel distribution area, and a light-transmitting area is arranged outside the array. The pixel area is not transparent, and light can not directly enter human eyes through pixel luminescence so as to eliminate stray light interference.
In a third embodiment, the present embodiment is described with reference to fig. 1, fig. 2, and fig. 12, and is another example of a near-eye display optical system according to the first embodiment: comprises a display system 1, a spherical mirror 2 and a reference position pupil 3; the display system 1 is arranged in front of a pupil 3 at a reference position in a coaxial symmetrical mode, a spherical reflector 2 is arranged in front of the display system 1, the display system 1 is positioned on a focal plane of the spherical reflector 2, the spherical centers of the display system 1 and the spherical reflector 2 are both near the center of the pupil 3 at the reference position and are within 1 cm; the spherical mirror 2 has two surfaces, the surface close to the display system is a partial reflecting surface 2-1, and the reflectivity of the partial reflecting surface can be between 1% and 99%. The face remote from the display system is the transmissive face 2-2 which corrects the ambient light to accommodate the degree of myopia of the wearer. In the system, the fields of view at various angles have symmetry relative to the pupil, and the central field of view has the same display effect as that of other directions. Therefore, the optical performance of the system is greatly improved.
The display system 1 is composed of spherical transparent display screens 1-20 alone or a combination of the transparent display screens 1-20 and dynamic shading layers 1-19, wherein the dynamic shading layers 1-19 are positioned on one side close to human eyes and are pasted below the transparent display screens 1-20. The dynamic shading layers 1-19 can be formed by liquid crystal pixels or electrochromic material arrays, and the transmission or the light transmission of each pixel is controlled by adopting the existing control board card to output HDMI signals or VGA signals; the control board card can be fixed on the glasses legs. In the range that the lightening position of the pixels of the spherical transparent display screen 1-20 is smaller than the pupils of human eyes, the dynamic shading layer 1-19 is a shading area 1-19-1 in an opaque state, and the other parts are transparent areas 1-19-2. The light emitted by the lighted pixels towards the human eyes is shielded by the shading area 1-19-1 and cannot directly enter the human eyes, so that the stray light directly entering the human eyes is blocked. The light emitted by the transparent display screen 1-20 in the direction opposite to the human eyes enters the human eyes through the spherical mirror reflection and then passes through the transparent display screen 1-20 and the transparent area 1-19-2 of the dynamic light shielding layer 1-19, because the size of the light shielding area 1-19-1 is smaller than that of the human eyes, part of the reflected light can still enter the human eyes and is perceived by the human eyes, meanwhile, the size of the light shielding area 1-19-1 needs to ensure that the light emitted by the transparent display screen 1-20 directly towards the pupils can be blocked, and the light emitted towards the area outside the pupils of the human eyes can not be blocked.
The positions of the partial reflecting surface and the transmission surface of the spherical reflecting lens 2 can be interchanged, the radius of the spherical surface of the reflecting surface is within the range of 10mm-90mm, and the radius error is less than 45 percent of the radius value;
the spherical radius of the display pixel distribution in the display system 1 is within the range of 5mm-45mm, and the radius error of the display pixel distribution is less than 45% of the spherical radius value;
by way of example, with the present embodiment, the system entrance pupil size is set to 8mm, the field angle is set to 90 °, and the following table lists one of the possible optical parameters:
| surface of | Radius (mm) | Thickness (mm) | Material |
| |
Infinity(s) | 36 | Air (a) |
| Partially reflecting surface 2-1 | 36 | -17.926 | Mirror surface |
| Display system 1 | -18.027 | - | - |
The system obtained in the above example can have a transfer function value of more than 0.2 at 100lp/mm as shown in fig. 2, and therefore, this embodiment can obtain a very high resolution. The data prove that the optical performance of the system is extremely excellent, the main reason is that the system keeps the highest symmetry, the Lagrangian invariant does not change along with the increase of the field of view, the burden of the increase of the field of view on the optical system is completely eliminated, and the field of view can reach more than 100 degrees.
It should be noted that, while the near-eye display optical system provided by the present application utilizes the screen and the reflector to reflect and display dynamic images in spherical symmetry, the near-eye display optical system can be combined with one or more existing additional structures, such as a wireless communication chip, an IMU sensor, an image sensor, and the like, so that the functions of the AR glasses are more complete.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A near-eye display optical system, characterized by: comprises a display system (1) and a spherical mirror (2);
a display system (1) is arranged in front of a reference position pupil (3), and a spherical reflection lens (2) is arranged in front of the display system (1);
display pixels in the display system (1) are distributed on the convex surface, the display pixels in the display system (1) emit light to the spherical reflector (2), and the spherical reflector (2) reflects light rays to the pupil (3) at the reference position; by using the effect of human vision persistence, the display system (1) generates an image by emitting light in motion, and enlarges and reflects the image to the pupil (3) at the reference position through the spherical reflection lens (2).
2. The near-eye display optical system according to claim 1, wherein: the display system (1) comprises a driving motor for rotating the display system and an electronic control system for controlling the display of the display system, and the electronic control system loads corresponding image information and drives the display pixels to emit light according to the movement position of the display system (1).
3. The near-eye display optical system according to claim 1, wherein: the spherical reflector (2) is a part of a spherical surface and allows deformation error within a range of 1 cm; the spherical mirror (2) has two faces: the first surface is a partial reflecting surface (2-1) which is used for enlarging and reflecting the image on the display system (1) to the reference position pupil (3); the second face is a transmission face (2-2) for correcting the ambient light to the degree of the wearer; the positions of the partially reflective surface and the transmissive surface may be interchanged.
4. The near-eye display optical system according to claim 1, wherein: the display system (1) is formed by randomly arranging single or multiple linear array display pixels (1-4) on a convex surface.
5. The near-eye display optical system according to claim 1, wherein: a transparent protective layer (7) is included on the side of the display system (1) adjacent to the human eye.
6. A near-eye display optical system, characterized by: comprises a display system (1) and a spherical mirror (2); the spherical mirror (2) has two surfaces, the first surface is a partial reflecting surface (2-1) used for magnifying and reflecting the image on the display system (1) to the reference position pupil (3), the second surface is a transmitting surface (2-2) used for correcting the ambient light to adapt to the degree of the wearer, and the positions of the partial reflecting surface and the transmitting surface can be interchanged;
a display system (1) is arranged in front of a reference position pupil (3), and a spherical reflection lens (2) is arranged in front of the display system (1);
the display system (1) is composed of a hole-shaped structure array distributed on a spherical transparent substrate and an area outside the array;
the area outside the array is a display pixel distribution area, and light emitted by the display pixels enters the pupil (3) at the reference position through the hole-shaped structure array after being reflected by the spherical reflection lens (2).
7. The near-eye display optical system according to claim 6, wherein: the array of pore structures is interchangeable with the area outside the array, i.e.: the hole-shaped structure array is used as a pixel distribution area, and the area outside the array is used as a light transmission area.
8. The near-eye display optical system according to claim 7, wherein: the hole-shaped structure array is a circular hole array, an elliptical hole array, a square hole array or a polygonal hole array.
9. A near-eye display optical system, characterized by: comprises a display system (1) and a spherical mirror (2);
a display system (1) is arranged in front of a reference position pupil (3), and a spherical reflection lens (2) is arranged in front of the display system (1);
the display system (1) is composed of transparent display screens (1-20) alone or a combination of dynamic shading layers (1-19) and the transparent display screens (1-20), wherein the dynamic shading layers (1-19) are positioned on one side of human eyes and are configured to shade the light which is directly emitted to one side of the human eyes by the transparent display screens (1-20) and transmit the light reflected by the spherical reflection lens (2);
the spherical mirror (2) has two faces: the first surface is a partial reflecting surface (2-1) used for enlarging and reflecting the image on the display system (1) to the pupil (3) at the reference position; the second face is a transmission face (2-2) for correcting the ambient light to the degree of the wearer; the positions of the partially reflective surface and the transmissive surface may be interchanged.
10. The near-eye display optical system according to claim 9, wherein: the shapes of the dynamic shading layers (1-19), the transparent display screens (1-20) and the spherical mirror plates (2) in the display system (1) are parts of a spherical surface, and deformation errors within a range of 1cm are allowed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/132189 WO2021109935A1 (en) | 2019-12-05 | 2020-11-27 | Near-to-eye display optical system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019112313512 | 2019-12-05 | ||
| CN201911231351.2A CN110780447A (en) | 2019-12-05 | 2019-12-05 | Optical system for augmented reality glasses |
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| Publication Number | Publication Date |
|---|---|
| CN111399228A true CN111399228A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911231351.2A Pending CN110780447A (en) | 2019-12-05 | 2019-12-05 | Optical system for augmented reality glasses |
| CN202010381863.3A Pending CN111399228A (en) | 2019-12-05 | 2020-05-08 | Near-to-eye display optical system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911231351.2A Pending CN110780447A (en) | 2019-12-05 | 2019-12-05 | Optical system for augmented reality glasses |
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| Country | Link |
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| CN (2) | CN110780447A (en) |
| WO (1) | WO2021109935A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109935A1 (en) * | 2019-12-05 | 2021-06-10 | 光感(上海)科技有限公司 | Near-to-eye display optical system |
| CN113253466A (en) * | 2021-02-04 | 2021-08-13 | 光感(上海)科技有限公司 | Short-focus near-to-eye display system |
| CN113540304A (en) * | 2021-07-08 | 2021-10-22 | 光感(上海)科技有限公司 | Side-emitting linear display system |
| WO2022193808A1 (en) * | 2021-03-19 | 2022-09-22 | 光感(上海)科技有限公司 | Light short-focus near-eye display system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175982B (en) * | 2020-02-24 | 2023-01-17 | 京东方科技集团股份有限公司 | Near-to-eye display device and wearable equipment |
| CN111538157B (en) * | 2020-05-14 | 2022-04-12 | 南昌欧菲显示科技有限公司 | AR (augmented reality) lens, preparation method of AR lens and AR glasses |
| CN113589536B (en) * | 2021-09-14 | 2022-11-11 | 维沃移动通信有限公司 | Intelligent glasses |
| CN113960797A (en) * | 2021-10-29 | 2022-01-21 | 歌尔光学科技有限公司 | Head-mounted display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014013320B4 (en) * | 2014-09-15 | 2022-02-10 | Rolf Hainich | Apparatus and method for near-eye display of computer-generated images |
| CN105652450B (en) * | 2016-03-31 | 2018-02-09 | 高霞辉 | Image display device and the head-mounted display with the image display device |
| CN109425985B (en) * | 2017-08-30 | 2020-08-28 | 芋头科技（杭州）有限公司 | Near-eye display system and near-eye display |
| CN207488620U (en) * | 2017-11-16 | 2018-06-12 | 北京蚁视科技有限公司 | A kind of rotary nearly eye display device |
| CN110780447A (en) * | 2019-12-05 | 2020-02-11 | 杨建明 | Optical system for augmented reality glasses |
| CN212060744U (en) * | 2019-12-05 | 2020-12-01 | 光感(上海)科技有限公司 | Near-to-eye display optical system |
-
2019
- 2019-12-05 CN CN201911231351.2A patent/CN110780447A/en active Pending
-
2020
- 2020-05-08 CN CN202010381863.3A patent/CN111399228A/en active Pending
- 2020-11-27 WO PCT/CN2020/132189 patent/WO2021109935A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109935A1 (en) * | 2019-12-05 | 2021-06-10 | 光感(上海)科技有限公司 | Near-to-eye display optical system |
| CN113253466A (en) * | 2021-02-04 | 2021-08-13 | 光感(上海)科技有限公司 | Short-focus near-to-eye display system |
| CN113253466B (en) * | 2021-02-04 | 2023-03-14 | 光感(上海)科技有限公司 | Short-focus near-to-eye display system |
| WO2022193808A1 (en) * | 2021-03-19 | 2022-09-22 | 光感(上海)科技有限公司 | Light short-focus near-eye display system |
| CN113540304A (en) * | 2021-07-08 | 2021-10-22 | 光感(上海)科技有限公司 | Side-emitting linear display system |
| CN113540304B (en) * | 2021-07-08 | 2022-10-11 | 光感(上海)科技有限公司 | Side-emitting linear display system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110780447A (en) | 2020-02-11 |
| WO2021109935A1 (en) | 2021-06-10 |
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