A direct-to-eye augmented reality display glasses

Abstract

The application provides a direct-throw type augmented reality display glasses, comprising a projection module, an optical module, a monitoring module and a micro display module arranged on a glasses body; the micro display module comprises a micro display chip; the projection module comprises a micro projection lens and a projection lens support, and the micro projection lens is connected with the micro display chip; the optical module comprises a single or multiple micro lens array; the monitoring module comprises a slide rail device and a monitoring lens; the micro projection lens projects an image on a glasses lens with the micro lens array, and the projection light is refracted by the micro lens unit and accurately focused on the retina or forms a virtual image in front of the eyes; the micro projection lens is extended and retracted and the projection distance is adjusted in real time through a rotating structure, so that the field of view and the diopter are adjusted and the pupil expansion function is realized; the monitoring module is used for real-time monitoring of the eyeball, and cooperates with the micro projection lens to realize local imaging of the lens array and focusing on the pupil.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of micro projection, near-eye display and augmented reality, and specifically relates to a direct projection type augmented reality display glasses. BACKGROUND

[0002] The main principle of micro projection technology is to use micro optical elements and projection light sources to project images or video content onto a screen or other flat surfaces, achieving image display function. Micro projection devices usually use LED or laser as light source, the light emitted by these light sources is focused into a beam after passing through lenses or reflectors, and then enters the eye or displays images after optical processing. Micro projection technology is a technology used to achieve projection function in small devices, commonly used in portable projectors, smart glasses, smartphones and other devices. Its main advantages include small size, easy to carry, energy saving and environmental protection, etc.

[0003] Near-eye display (NED) is a display technology that projects images or information directly into the user's eyes, commonly used in augmented reality (AR) and virtual reality (VR) devices. Its main principle is to use micro optical elements to project images onto the user's retina to achieve image display function. Near-eye display can directly project images onto the user's retina, providing a more immersive virtual experience. Compared with traditional large displays, near-eye display devices are usually smaller and more portable, making them easier to carry and use.

[0004] Traditional AR eye structures mostly use micro projection light machines and optical waveguides (refractive optical waveguides, diffractive optical waveguides, etc.), free-form surfaces and other structures to achieve the function of augmented reality. In these structures, the energy loss of light in the transmission process is high, and the final display effect may not be good. To improve the final display brightness, it is necessary to increase the output power of the micro projection light machine, but the display image brightness will also cause the heat generation of the machine to increase, which will increase the power consumption and reduce the user's wearing comfort. In these schemes, the display field of view and the pupil expansion range are relatively fixed, and the dioptric power cannot be flexibly adjusted to cope with different groups of people. SUMMARY

[0005] To address the aforementioned technical problems, this invention provides a direct-projection augmented reality display glasses. The glasses mainly consist of a projection module, an optical module, a monitoring module, and a micro-display module. The micro-display module comprises one or more micro-display chips, their driving circuits, and a driving power supply. The projection module consists of a micro-projection lens and a projection lens holder. The optical module consists of a multi-microlens array. The monitoring module consists of a sliding rail device, a monitoring lens mount, and a monitoring lens. This invention achieves a flexible augmented reality projection effect through the cooperation between the various modules, including the display module and the projection module. Through the micro-projection lens, the projection system can project a clear pattern onto the microlens array lenses. The projected light, after refraction by the microlens units, is precisely focused on the retina or forms a virtual image in front of the eyes. The rotating structure facilitates the extension and retraction of the micro-projection lens and real-time adjustment of the projection distance to adjust the field of view, refractive power, and achieve pupil dilation. The monitoring module enables real-time monitoring of the eyeball, ensuring tracking of the eyeball's position. Combined with the flexibly rotating micro-projection lens, it can achieve local imaging of the lens array and precise focusing of the pupil. All of the above structures can be applied to near-eye display devices such as smart glasses.

[0006] Furthermore, the glasses structure incorporates a perovskite quantum dot array and a filter. The perovskite quantum dot array receives pattern information from the micro-projection lens. The micro-projection lens uses blue light or other high-energy light sources, employing red and green perovskite quantum dots. It utilizes the photoluminescence properties of the perovskite quantum dots and the high-energy properties of blue light to achieve the final projection. The filter prevents the leakage of projected information. Simply put, the filter absorbs red and green light. When the quantum dots are excited by blue light to emit light, the emitted red and green light may be refracted or reflected from the microlens array in other directions instead of converging on the eye, leading to information leakage. The filter absorbs light from the wrong direction, thus preventing the leakage of projected information from the micro-projection lens and increasing security. All of these structures can be applied to near-eye display devices such as smart glasses.

[0007] The specific technical solution adopted by this invention to solve its technical problem is as follows:

[0008] A type of direct-projection augmented reality display glasses:

[0009] This includes the following components mounted on the glasses themselves: a projection module, an optical module, a monitoring module, and a micro-display module.

[0010] The microdisplay module includes a microdisplay chip; the projection module comprises a microprojection lens and a projection lens bracket with telescopic and rotating functions, the microprojection lens being connected to the microdisplay chip; the optical module includes a single or multiple microlens array; the monitoring module includes a sliding rail device and a monitoring lens;

[0011] The micro projection lens projects an image on the spectacle lens with a microlens array, and the projection light is refracted by the microlens unit and accurately focused on the retina or forms a virtual image in front of the eye; the micro projection lens is extended and retracted by rotating the structure, and the projection distance is adjusted in real time, so as to realize the adjustment of the field of view and the diopter and the function of pupil expansion.

[0012] The monitoring module is used for real-time monitoring of the eyeball, tracking the position of the eyeball, and cooperating with the micro projection lens to realize local imaging of the lens array and focusing on the pupil.

[0013] The micro display module includes one or more micro display chips, corresponding driving circuits and driving power supply parts. The micro display technologies that can be used include but are not limited to Mini-LED, Mini-OLED, Micro-LED and Micro-OLED, etc. In addition, other passive light-emitting structures capable of generating micro display images can also be used, such as LCD, DLP, LCOS, LED, laser projection technology, etc. The micro display chip used in the micro display module has the ability to drive monochrome and color images. When the spectacle structure only needs to display monochrome images or black and white images, the display module is composed of one or more monochrome micro display chips, corresponding driving circuits and driving power supply parts; when the structure needs to display color images, the display module can be composed of a full-color micro display chip, its driving circuit and driving power supply part, or it can be composed of red, green and blue single-chip micro display chips, their driving circuits and driving power supply parts, or it can use multiple color driving chips to drive different regions of the full-color image to enhance display driving.

[0014] The projection module is composed of a micro projection lens and a projection lens support that can be freely extended and retracted and rotated. The micro projection lens projects the content displayed by the micro display chip. The projection lens support can be made of flexible material, which is beneficial to the retraction of the projection lens and its support when the projection function is turned off, and is also beneficial to the wide-range flexible rotation of the projection lens, which can realize the adjustment of specific regions and specific focal lengths in cooperation with the optical module. The projection light beam can be modulated by the optical module to realize specific image entry into the eye or display on the screen.

[0015] The optical module is composed of a single or multiple microlens arrays. The microlens array is a planar or non-planar lens structure composed of many lens units of small size. Each microlens unit has an independent imaging function, usually with a diameter of several microns to tens of microns. The microlens array has the characteristics of high resolution, high density, optical modulation and strong integration. In order to accurately converge the image to the pupil of the human eye and ensure visual clarity, multiple microlens arrays are introduced to correct aberrations if necessary. The light rays passing through the microlens array are processed and can be directly entered into the eye or form a virtual image in front of the eye. As a preferred solution, when a perovskite quantum dot array and a filter are introduced, the optical module is composed of a pixelated perovskite quantum dot array and multiple microlens arrays. The perovskite quantum dot array is generated inside the glass by femtosecond laser, and further heat treatment and other treatments after femtosecond laser induction can realize the pixelation of the perovskite quantum dot array, so that it has the ability to emit light under light source excitation.

[0016] The monitoring module is composed of a slide rail device, a monitoring lens seat pad and a monitoring lens. The slide rail device allows the miniature lens to move freely forward and backward within a certain range under motor control, and the miniature monitoring lens can realize 360-degree rotation in situ, which is conducive to realizing real-time tracking of the eyeball by the monitoring module. The monitoring lens seat pad, as a preferred structure, is usually made of rubber material and can provide fixation and cushioning for the monitoring lens. In the case of severe shaking, it can prevent lens displacement and reduce the impact received by the monitoring lens.

[0017] When the glasses structure only needs to display monochrome images or black and white images, the display module is composed of one or more monochrome miniature display chips and their corresponding driving circuit and driving power supply parts; when displaying color images, the display module can use red, green and blue single-chip miniature display chips and their driving circuit and driving power supply parts to realize full color through spatial color mixing and other methods. When the display drive is driven by a full-color miniature display chip, it can be composed of a full-color miniature display chip and its driving circuit and driving power supply parts. At this time, the three primary color pixels mixed by the miniature projection lens display color.

[0018] Further, the light rays projected by the miniature projection lens enter the eye or form a virtual image after refraction by the microlens array, or directly enter the eye without any refraction treatment by the microlens array and other lenses; the light beam is modulated according to the eyeball position by the miniature projection lens cooperating with the monitoring module; when the projection light passes through the microlens array, the microlens array focuses or superimposes the light on the projection line to the user's eye; when the projection light does not pass through the microlens array and directly enters the eye, the miniature projection lens should move the projection distance in real time according to the eyeball movement information, so that the projection light is directly projected into the eye.

[0019] Each micro display driving chip can use micro display chips of different materials and different structures. By combining different types of chips, their respective advantages can be brought into play, making the overall display effect more outstanding. At the same time, the cost and performance are optimized, and the use of multiple chips in a screen or projection lens can optimize the cost and performance according to the needs. When a certain chip fails or is damaged, other chips can still work normally, thereby improving the stability and reliability of the overall display system. Each micro display driving chip can use micro display chips of different materials and different structures. By combining different types of chips, their respective advantages can be brought into play, making the overall display effect more outstanding. At the same time, the cost and performance are optimized, and the use of multiple chips in a screen or projection lens can optimize the cost and performance according to the needs. When a certain chip fails or is damaged, other chips can still work normally, thereby improving the stability and reliability of the overall display system.

[0020] The micro-projection lens can achieve different brightness, resolution and contrast projection effects, and the specific parameters include but are not limited to brightness, resolution, projection ratio, contrast, optical zoom ratio, lens diameter, micro-projection lens lens type, lens material, lens weight, lens structure and construction, etc. The bracket of the above-mentioned micro-projection lens can assist the micro-projection lens to achieve a wide range of flexible adjustment, facilitate the extension and retraction of the micro-projection lens and the adjustment of the projection direction and projection distance, and ensure the convenience and flexibility of use. In order to realize the telescopic function of the lens, as preferred by the present application, the bracket of the lens uses a sliding rail structure. This structure is similar to a telescopic telescope. It is composed of multiple parts, each of which can be telescoped within another. Usually, each part has grooves and protrusions between the inside and outside, which can be nested with each other to achieve the telescopic function. In the bracket of the direct projection type augmented reality display glasses, this structure can be used to control the forward and backward movement of the micro-projection lens. Other structures can also be used to achieve the telescopic function, such as a folding structure, which is similar to the design of a folding knife or a folding chair, connected by multiple hinges, to achieve the extension and retraction of the lens. The folding structure usually connects multiple rigid parts through hinges, providing a compact storage method and convenient telescopic function. Or a screw telescopic structure, which realizes the telescopic function of the lens through rotating threads, similar to the zoom function of a camera lens. By rotating the shell or the internal components, the lens can be smoothly extended or retracted, with precise control over the telescopic distance. Other structures that provide telescopic function to the lens bracket are also included, which are not listed here. The rotating function uses a structure similar to a ball-and-socket joint. This structure allows the lens to rotate in multiple directions. The ball-and-socket joint is usually composed of a spherical part and a groove part, and the spherical part can rotate freely in the groove while providing enough support to keep the lens in the desired position. By stretching or retracting the sliding rail and adjusting the rotation of the micro-projection lens, the distance between the lens and the eye in the front-back and up-down directions can be changed to adjust the eye structure to the field of view and diopter. Similarly, other structures can also be used to achieve the telescopic function of the bracket, such as a universal joint structure, which allows rotation in multiple directions, similar to the design of a car transmission shaft. By connecting two perpendicular hinges, the lens can rotate freely in all directions. Or a flexible rod structure, which realizes multi-directional rotation through its own bending and twisting, similar to a snake-shaped robot. This structure allows the lens to be adjusted within a larger range, providing flexible rotation capability. Other structures that provide rotation function to the lens bracket are also included, which are not listed here. The lens bracket material can be metal, plastic, carbon fiber, rubber, magnetic material and other composite materials.The lens holder should be strong and flexible. When the smart glasses are off, the lens holder should be flexible to retract in time. When the projection function is on, the lens holder should extend in time to ensure the correct projection area.

[0021] The image pixels of the micro-projection lens and the microlens units of the microlens array may have the following corresponding relationships according to actual conditions:

[0022] When the resolution of the micro-projection lens matches the number of microlens units of the microlens array, a one-to-one correspondence can be achieved. Each pixel of the micro-projection lens corresponds to a microlens unit of the microlens array. When the micro-projection lens is translated or rotated, the pixels of each micro-projection lens can still accurately correspond to a microlens unit.

[0023] When the pixel resolution of the micro-projection chip is lower than the number of microlens units of the microlens array, one display pixel will correspond to multiple microlens units. In this case, interpolation or other algorithms can be used to adjust the image pixel density to ensure the clarity and accuracy of the image.

[0024] When the micro-projection display resolution is higher than the number of microlens units of the microlens array, multiple display pixels may correspond to the same microlens unit. In this case, the pixel image corresponding to the same microlens unit area will share a microlens unit imaging and be imaged into the eye by the microlens unit.

[0025] The focal length of the micro-projection system can be adjusted to ensure that the distance from the micro-projection lens to the microlens array meets the best imaging conditions, thereby ensuring that the projected light can be correctly focused by the microlens. By adjusting the position of the micro-projection lens, the direction of light propagation and the focal point position can be controlled to achieve matching of the projected light and the microlens array. Eye position tracking technology is used to detect the position of the user's eyes and dynamically adjust the direction and focal length of the projected light to ensure that the light matches the position of the user's eyes.

[0026] The microlens array can employ an electrically controlled microlens array. The electrically controlled microlens array is composed of many microlens units, each equipped with one or more controllable electrodes. By controlling the electric field of each microlens unit, its optical properties can be changed. The adjustment of its refractive index, focal length, or phase can be achieved by adjusting the current or voltage. By controlling the current or voltage, the refractive index of each microlens unit can be adjusted, thereby changing its optical properties. This flexibility enables the electrically controlled microlens array to achieve wavefront modulation, depth of field control, dynamic focusing, and other functions. Each microlens unit is composed of a lens and one or more electrodes, which are used to control the shape or optical properties of the lens. The microlens unit structure includes but is not limited to electrofluidic lenses, electronic lenses, electromagnetic lenses, etc. When an electric field is applied to the microlens unit, the medium around the electrode changes, thereby changing the shape or optical properties of the lens. For example, for an electrofluidic lens, applying an electric field can change the shape of the liquid, thereby changing the radius of curvature of the lens, achieving focal length adjustment. The electrically controlled microlens array has flexibility, real-time performance, and adjustability. It can adjust the focal length, wavefront, and depth of field in real time according to the needs, making this micro-projection system more adaptable to complex user scenarios. When the user wears this projection system, the eye tracking module obtains the eye rotation information, and the micro-projection lens adjusts the position in real time, while the electrically controlled microlens array also adjusts the focal length by adjusting the current or voltage, and cooperates with the micro-projection lens to produce the appropriate focal length. The projection light passes through the electrically controlled microlens array, and finally the projection light is successfully focused on the eyeball.

[0027] Further, the spacing area between the microlens elements in the microlens array is not provided with imaging elements, and the light can directly pass through, determining the transparency of near-eye display imaging. The spacing of the lens elements determines the propagation and refraction of the projection light through the glasses: when the spacing is too small, the light will encounter more blockage or scattering during propagation, thereby increasing the loss of light, resulting in a decrease in the intensity of the projection light and a decrease in the transparency of the imaging. On the contrary, appropriate spacing can make the light propagate more smoothly, reduce loss, and improve the transparency of the imaging. The electrically controlled microlens array can adjust the spacing of the microlens elements in real time by controlling the current or voltage, thereby adjusting the transparency of the final imaging.

[0028] In addition, the different size and shape parameters of the microlens elements in the microlens array will directly affect the transparency of the imaging. By adjusting the projection brightness of the micro-projection lens, the intensity and uniformity of the projection light can be controlled, thereby affecting the transparency of the final imaging. In addition, an adjustable transparency control layer can be added behind the microlens array in the optical path, including but not limited to adjustable polarizers or electrically adjustable layers. These control layers can adjust the transparency according to the needs of the user, thereby enabling the user to obtain better visual experience under different environmental conditions.

[0029] Further, the monitoring module is provided with a monitoring lens seat pad for providing fixation and buffering for the monitoring lens.

[0030] The seat pad for buffering the monitoring lens needs to have certain performance to reduce the impact on the lens. It includes certain shock-absorbing performance to absorb impact energy and reduce the impact on the lens to prevent damage or destruction. Certain elasticity can restore to its original state after being stressed, providing lasting protection. Certain wear resistance can resist friction and wear, maintaining stability and reliability over a long period of use. Certain corrosion resistance can resist the erosion of chemicals, moisture or other environmental factors, maintaining the performance and functionality of the material. And the whole has a relatively light weight, which can reduce the weight of the overall product and improve the convenience of carrying and using. High temperature stability can maintain stability in high temperature environment and is not easy to soften or deform. The materials prepared include but are not limited to rubber, plastic, fiber material, air cushion material, etc. The material should have the above performance to protect the lens.

[0031] Further, in the optical module, the light beam emitted by the micro-projection lens is directly incident to the microlens array module to form direct coupling, or is indirectly coupled through the transition shaping of intermediate elements.

[0032] Further, when the light emitted by the micro-projection lens and the lens array are indirectly coupled, a micro-collimation element needs to be connected.

[0033] For example, collimating lens, optical waveguide, gradient refractive index lens, etc. Among them, the micro-collimation element can be an array structure composed of at least one of the diffractive optical elements such as superlens and photonic crystal, or can use geometric optical elements such as microlens, total reflection lens, and mirror. When the two are directly coupled, the specific parameters of each microlens need to be considered to achieve the best coupling efficiency and focusing effect, such as the surface smoothness, transmittance, and refractive index of the optical elements in the lens array. The precision of the optical elements and the wavelength matching between the elements, good wavelength matching can improve the coupling efficiency. The propagation path of the optical system will also affect the coupling efficiency. For spherical lenses (microlenses), the relationship between curvature and focal length also needs to be considered: , where: f is the focal length of the lens; n is the refractive index of the medium; R1 and R2 are the radii of curvature on both sides of the lens. For spherical lenses (microlenses), the curvature R is usually defined as the reciprocal of the radius of curvature of the spherical surface, i.e. wherein r is the radius of curvature of the sphere. Wherein the material of the lens array includes but is not limited to: lens array made of glass; lens array made of polymer (such as polycarbonate, polymethyl methacrylate, etc.); lens array made of crystal (such as silicon, magnesium aluminum spinel, perovskite, etc.); lens array made of nonlinear optical crystal (such as lithium strontium titanate, lithium potassium niobate, etc.); lens array made of semiconductor material (such as gallium nitride, zinc selenide, etc.); lens array made of metal-dielectric composite material (such as metal lithium niobate, etc.); and the like.

[0034] Further, the optical module further includes a perovskite quantum dot array induced by a femtosecond laser inside the lens; the perovskite quantum dot array is used to receive the pattern information of the micro-projection lens, and the photoluminescence characteristics of the perovskite quantum dot are used to realize the final projection.

[0035] Further, the quantum dot material adopts CsPbBr3 and MAPbI3, and adopts a matrix arrangement or a honeycomb arrangement.

[0036] Further, the optical module further includes a filter for preventing leakage of the projection information.

[0037] The light source of the micro-projection lens is blue light or other high-energy light, and the perovskite quantum dots used are red and green quantum dots. The photoluminescence characteristics of the perovskite quantum dots and the high-energy characteristics of the blue light are used to realize the final projection. The filter is used to prevent leakage of the projection information. In short, the filter can absorb red and green light. When the quantum dots are excited by blue light to emit red and green light, the red and green light may be refracted or reflected in other directions instead of passing through the microlens array and then converging to the eyes, resulting in information leakage. The filter can absorb light in the wrong direction to prevent leakage of the projection information of the micro-projection lens and increase the security. The above structure can be applied to smart glasses and other near-eye display devices.

[0038] The quantum dot material uses CsPbBr3 (cesium lead bromide) and MAPbI3 (methylamine lead iodide) and other high-efficiency perovskite quantum dots, with a size ranging from 3 to 10 nanometers. Regarding its spectral characteristics, the emission wavelength range of the quantum dot array needs to be controlled between 450 nm and 650 nm, with a spectral half-width of 20 nm for red quantum dots and 25 nm for green quantum dots, ensuring that the quantum dots provide pure red and green light. The photoluminescence quantum efficiency of the selected perovskite quantum dots exceeds 90%, and most of the absorbed light energy is converted into luminescence, ensuring high-brightness output and improving the energy efficiency of the display device. For the quantum dot array, the quantum dots can be arranged in a matrix, with a pixel pitch of 10 microns, ensuring high-definition display. At the same time, a compact honeycomb arrangement can be used to reduce space waste. In addition, considering the advantages and disadvantages of different arrangements and their impact on display performance and practical applications, stripe arrangement, random arrangement, and other arrangements can also be selected as needed.

[0039] The pixelated perovskite quantum dots have the characteristics that perovskite quantum dots should have, including but not limited to optoelectronic properties, quantum effects, bandwidth absorption, high stability, photoluminescence, etc. In addition, femtosecond lasers can achieve micron-level or even nanometer-level spatial resolution, allowing precise control of quantum dot position and arrangement for high-resolution pixelation. Femtosecond laser processing is fast and can complete large-area quantum dot pixelation in a short time, improving production efficiency. During femtosecond laser processing, there is almost no thermal damage and material damage, which can maintain the excellent performance and stability of perovskite quantum dots. Femtosecond lasers can process materials in three-dimensional space, enabling complex structures and shapes, providing more possibilities for perovskite quantum dot applications. Femtosecond laser processing has extremely high positioning accuracy and processing accuracy, allowing precise control of quantum dot shape, size, and arrangement. At the same time, the methods for inducing the growth of perovskite quantum dots inside glass and pixelating perovskite quantum dots include but are not limited to spin coating, inkjet printing, melt-doping, sol-gel, chemical vapor deposition (CVD), etc. Key parameters such as temperature and pressure need to be strictly controlled during the manufacturing process, and the processed perovskite quantum dots should have the above-mentioned properties and characteristics.

[0040] The filter uses high-transmittance optical glass material with good optical performance and thermal stability, such as borosilicate glass or quartz glass, with transmittance exceeding 95%, ensuring maximum transmission of optical signals and improving display brightness and clarity. In order to achieve large-scale transmission of blue light while absorbing red and green light, the filter is designed to have a transmittance of more than 95% in the blue light band (450-495 nm), an absorption rate of more than 90% in the red light band (620-750 nm), and an absorption rate of more than 90% in the green light band (495-570 nm), effectively blocking red and green light while ensuring smooth passage of blue light. PVD technology is used for multi-layer thin film coating, and the thickness and material selection of each layer are precisely calculated and optimized. The blue light transmission layer uses high-transmittance materials such as MgF2 or SiO2 to ensure high transmittance in the 450-495 nm range. The red and green light absorption layers use high-absorption materials such as TiO2 or Ta2O5 to ensure high absorption in the 495-750 nm range.

[0041] When a monochromatic micro display screen is used as the display chip of the projection lens, near-eye display colorization can also be achieved through quantum dot color conversion. Specifically, one or more perovskite quantum dot arrays can be tightly attached in front of the microlens array. The perovskite quantum dot array is treated in situ to crystallize inside the glass, and then subjected to appropriate heat treatment to obtain a pixelated perovskite quantum dot array. The perovskite quantum dot array is processed to match the lens for attachment. When the micro projection lens is driven by the micro display chip, it projects various images. The projected images excite the quantum dot light display pattern, and the light emitted by the quantum dots is coupled with the lens array and can be displayed in the eye or on the screen. Through the micro projection lens, a blue light pattern is projected as an excitation source. The blue light pattern can excite the pixelated perovskite quantum dots to emit light and project a clear pattern due to its high energy. The advantages of high color saturation and purity and wide color gamut of perovskite quantum dots are fully utilized. Red and green quantum dots are used to achieve high light-emitting efficiency. The quantum dots used are not limited to perovskite quantum dots, and other types of quantum dots can also be used to fully utilize the advantages of different quantum dots. Meanwhile, a filter device can be added in front of the perovskite quantum dot, including but not limited to a filter, a distributed Bragg reflector, etc. The introduction of the filter device such as the filter is to prevent the leakage of projected information. Specifically, the filter can absorb red and green light. When the quantum dots are excited by blue light photoluminescence, the red and green light emitted may be refracted or reflected in other directions instead of passing through the microlens array and then converging to the eye, causing information leakage. The introduction of the filter can absorb light in the wrong direction, thereby avoiding the leakage of the micro projection lens projection information and increasing the security.

[0042] Further, the micro-projection lens moves in units of the microlens unit to ensure that it corresponds to the layout of the microlens array and avoids moving to a position between two or more microlens units; the micro-projection lens cooperates with the electrically controlled microlens array to have an adjustable focal length, so as to adjust the sharpness of the image according to different vision requirements.

[0043] The microlens unit is a basic unit of image segmentation, and each microlens unit corresponds to a small area of the projected image. The micro-projection lens moves in units of the microlens unit and can accurately reach the center position of each microlens unit. Therefore, the movement of the micro-projection lens should be able to accurately correspond to the layout of the microlens array, which can maintain the sharpness and accuracy of the projected image.

[0044] The micro-projection lens cooperates with the electrically controlled microlens array to have an adjustable focal length, so that the user can adjust the sharpness of the image according to different vision requirements, including but not limited to myopia, hyperopia, astigmatism, and other refractive problems. The lens rotating structure includes but is not limited to the lens and the support rotating around the lens parallel to the lens, the lens and the support having a telescopic structure and generating displacement in the horizontal direction of the lens, the lens and the support having a selected suspension structure, etc.

[0045] Specifically, in order to adapt to the pupils of different sizes of various users, this system can realize accurate imaging for different pupil sizes under the cooperation of the micro-projection lens and the microlens array. At the same time, when the ambient light is too bright, the user's pupil may also shrink slightly to reduce the amount of light entering, and when the ambient light is too dark, the user's pupil may also expand slightly to increase the amount of light entering. When the size of the user's pupil changes, the micro-projection lens can adjust the distance between the lens and the microlens array according to the required focal length to realize rapid and accurate focal length matching.

[0046] Specifically, in order to increase the field of view, when the user's eyeball rotates, this system can realize accurate imaging of the eyeball under the cooperation of the micro-projection lens and the microlens array. For example, when the user looks down, the micro-projection lens system cooperates with the eyeball monitoring module to obtain the information of the eyeball rotation, and the micro-projection lens quickly moves to the position where the eyeball looks. In order to speed up the information projection, the micro-projection lens can also project light to the position where the eyeball looks in advance when moving, and continuously adjusts the position of the projection lens while the micro-projection lens is moving, while the electrically controlled microlens array also adjusts the focal length by adjusting the current or voltage, so that the projection light can be accurately focused when passing through the microlens array, until the micro-projection lens reaches the specified position, and the focal length of the electrically controlled microlens array is temporarily no longer changed. The same applies to the user's eyeball looking in other directions, which will not be described here.

[0047] Specifically, in order to adapt to different pupil positions of different users, the system can realize accurate imaging for different pupil positions under the cooperation of the micro-projection lens and the microlens array. The pupil positions of different people are different, which can be caused by various factors. For example, when the user's pupil is in a position above the upper side, the micro-projection system can identify the eye position, realize calibration, and take this position as the initial position. The micro-projection lens can adjust the distance of the microlens array according to the required focal length to realize accurate focusing on the eyeball.

[0048] Specifically, in order to adapt to different pupil positions of different users, the system can realize accurate imaging for different pupil positions under the cooperation of the micro-projection lens and the microlens array. The pupil positions of different people are different, which can be caused by various factors. For example, when the user's pupil is in a position above the upper side, the micro-projection system can identify the eye position, realize calibration, and take this position as the initial position. The micro-projection lens can adjust the distance of the microlens array according to the required focal length to realize accurate focusing on the eyeball.

[0049] The resolution of the device imaging is related to the resolution of the micro-projection lens projection image. The resolution of the micro-projection lens mainly depends on the following factors: (1) optical design: the optical design of the micro-projection lens determines its imaging quality and resolution. The lens combination, lens shape, curvature radius and other parameters in the design will directly affect the clarity and detail performance of the projection image. (2) lens material: the quality and light transmission performance of the lens material have important influence on the resolution. High-quality glass or special coating can reduce light scattering and reflection, improve the transmission efficiency of the optical system, and thus improve the resolution. (3) imaging sensor: the resolution of the micro-projection lens is also limited by the imaging sensor used by the projection device. The pixel density and pixel quality of the sensor will directly affect the clarity and detail performance of the projection image. (4) projection distance and projection size: the resolution of the micro-projection lens is also affected by the projection distance and projection size. In the case of a longer projection distance or a larger projection size, the resolution may be reduced because the same pixels need to cover a larger projection area. The micro-projection lens can still work normally when changing the front and rear positions, but the resolution of the projection image may fluctuate. The resolutions of micro-projection lenses with different structural designs and parameters are different. Different micro-projection lenses should be able to realize the projection function, but the final imaging quality will be different.

[0050] The monitoring module can realize real-time monitoring of the eyeball, ensuring tracking of the eyeball position, and can realize local imaging of the lens array and accurate focusing on the pupil in cooperation with the flexible rotating micro-projection lens. The position of the monitoring module can be located at any position of the glasses structure, including but not limited to the inside of the glasses leg, the glasses bridge, any position on the glasses frame, etc. The position of the monitoring module can also be located at an external structure added to the basic glasses structure, including but not limited to a hanging device, inside or outside the micro-projection lens, etc. The position of the monitoring module should enable the monitoring module to work correctly, i.e., the monitoring lens can monitor the eyeball position in real time, and the micro-projection lens can adjust the position of the micro-projection lens in time according to the data to realize accurate projection. The above monitoring module includes but is not limited to an infrared eyeball tracking module, a capacitive eyeball tracking module, an optical eyeball tracking module, a magnetic eyeball tracking module, etc.

[0051] At the same time, the monitoring lens is integrated with a luminosity sensor and other types of environmental sensors. The light intensity sensor usually contains a photosensitive element, such as a photoresistor or a photodiode. When the intensity of the light in the environment changes, the resistance or current of these photosensitive elements will also change accordingly. The projection system obtains the intensity information of the ambient light by measuring these changes. Once the intensity information of the ambient light is obtained, the projection system will adjust the brightness of the micro-projection lens projection pattern according to the preset algorithm and logic. For example, when the ambient light is dark, the projection system will increase the brightness of the micro-projection lens projection pattern to improve the visibility of the projected image; in a strong light environment, the projection system will reduce the brightness of the micro-projection lens projection pattern to save power and avoid glare. This real-time light intensity detection and brightness adjustment system can ensure that users can obtain comfortable projection image brightness in different environments, and also helps to prolong the battery life of the system. At the same time, other micro-projection lenses of the adaptive system should also have the function of adjusting the brightness of the light, including but not limited to pattern micro-projection lenses, laser micro-projection lenses.

[0052] Based on the above design, the eyewear device structure can be applied to VR display and AR display. When the structure is applied to AR display, the micro projection lens can project a clear pattern on the microlens array eyeglass, and the projected light is refracted by the microlens unit and focused on the retina, or forms a virtual image in front of the eye. The rotating structure of the eyewear facilitates the extension and retraction of the micro projection lens and the real-time adjustment of the projection distance to realize the adjustment of the field of view and the diopter and the function of pupil expansion. The monitoring module can realize real-time monitoring of the eyeball to ensure tracking of the eyeball position, and the flexible rotating micro projection lens can realize local imaging of the lens array and accurate focusing on the pupil. When the structure is applied to VR display, the system does not need to consider the influence of external environment light, and a light shield can be used to shield the front end of the micro projection lens, or the micro projection lens can be applied to a head-mounted virtual reality display device. The micro projection lens and the monitoring lens and other modules can be installed in a suitable position in the head-mounted device, and the in-eye coupling is realized through the optical module. The in-eye method is consistent with the method in augmented reality application.

[0053] The eyewear device structure can be applied to monocular, and the corresponding image is received by the left eye or the right eye. When applied to binocular, the two lenses can output different images or synchronously display the same image, and the corresponding two eyes can receive different images or the same image. BRIEF DESCRIPTION OF DRAWINGS

[0054] The application will be further described in detail below with reference to the drawings and specific embodiments:

[0055] Figure 1 Figure 1 is a structural schematic diagram of an embodiment of the application;

[0056] Figure 2 Figure 2 is a side view of the structure of the embodiment of the application and the corresponding observation angle;

[0057] Figure 3 Figure 3 is a Zemax simulation schematic diagram of the structure of the embodiment, the eye model used in the Zemax simulation is the Liou & Brennan 1997 model, the direction of light propagation in the Zemax simulation diagram is from left to right, and in addition to the light, the structures from left to right include the micro projection lens, the microlens array, the cornea, the pupil, and the retina (image plane), the Zemax simulation diagram demonstrates the field of view schematic diagram of the optical system, wherein:

[0058] (a) is a simulation schematic diagram of the eyeball looking straight ahead, the micro projection lens is moved to the corresponding position,

[0059] (b) and (d) are simulation schematic diagrams of the eyeball looking up, the field of view angles are different, and the micro projection lens is moved to the corresponding position,

[0060] (c) (e) are simulated schematic diagrams of the eyeball looking down, the field of view angle is different, at the same time, the micro-projection lens moves to the corresponding position,

[0061] In the simulation process, the microlens array is replaced by a lens with a curvature radius of 100, a thickness of 3mm and a material of POLYCARB, and the simulation results are also based on this,

[0062] In (a) to (e), the number of light rays displayed by each structure is 10, and the distance between the microlens array and the eyeball center is 13mm;

[0063] Figure 4 It is a structure schematic diagram of the second embodiment of the application;

[0064] Figure 5 It is a side view of the second embodiment of the application;

[0065] Figure 6 It is a schematic diagram of the filter refracted light rays of the second embodiment of the application;

[0066] Figure 7 It is a structure schematic diagram and an optical element structure diagram of the third embodiment of the application;

[0067] Figure 8 It is a working process schematic diagram of the first, second and third embodiments of the application;

[0068] Figure 9 It is a schematic diagram of the principle of adapting different sizes of pupils for the structure of the eyeglasses of the application;

[0069] Figure 10 It is a schematic diagram of the principle of the field of view size of the structure of the eyeglasses of the application;

[0070] Figure 11 It is a schematic diagram of the principle of pupil dilation of the structure of the eyeglasses of the application;

[0071] Figure 12 It is a schematic diagram of the principle of diopter adjustment of the structure of the eyeglasses of the application;

[0072] Figure 13 It is a typical microlens array structure and optical path schematic diagram of the embodiment of the application;

[0073] The reference signs in the drawings are explained as follows:

[0074] Figure 1 : 100: micro-projection lens support, 101: micro-projection lens, 200: microlens array, 300: monitoring device sliding rail, 301: monitoring lens seat pad, 302: monitoring lens, 400 / 401: eyeglass leg (containing micro display driving chip and driving power supply)

[0075] Figure 2100: micro-projection lens holder, 101: micro-projection lens, 102: projection incident light, 200: microlens array, 201: projection exit light, 300: monitoring device slide rail, 301: monitoring lens seat pad, 302: monitoring lens, 303: eyeball, 400: micro-display driving chip, 401: glasses leg (containing driving power supply)

[0076] Figure 4 100: micro-projection lens holder, 101: micro-projection lens, 200: microlens array, 202: perovskite quantum dot array, 203: optical filter, 300: monitoring device slide rail, 301: monitoring lens seat pad, 302: monitoring lens, 400 / 401: glasses leg (containing micro-display driving chip and driving power supply)

[0077] Figure 5 100: micro-projection lens holder, 101: micro-projection lens, 102: projection incident light, 200: microlens array, 201: projection incident light, 202: perovskite quantum dot array, 203: optical filter, 300: monitoring device slide rail, 301: monitoring lens seat pad, 302: monitoring lens, 303: eyeball, 400: micro-display driving chip, 401: glasses leg (containing driving power supply)

[0078] Figure 6 100: micro-projection lens holder, 101: micro-projection lens, 102: projection incident light, 200: microlens array, 201: projection incident light, 202: perovskite quantum dot array, 203: optical filter, 303: eyeball

[0079] Figure 7 500: helmet, 501: micro-projection lens packaging sheet, 502: optical element, 5021: microlens array, 5022: collimating element, 503: monitoring lens packaging sheet DETAILED DESCRIPTION

[0080] To make the features and advantages of the patent more obvious and easy to understand, the following specific examples are described in detail as follows:

[0081] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise indicated, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0082] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0083] Example 1

[0084] like Figure 1 As shown, this embodiment provides a direct-projection augmented reality display glasses. The glasses, from the image source to the eyeball, sequentially include: a micro-display module, a projection module, an optical module, and a monitoring module. The optical structure includes the micro-display module, projection module, optical module, and monitoring module. The micro-display module consists of a micro-display chip 400 capable of displaying miniature images and its driving power supply 401; the projection module consists of a micro-projection lens bracket 100 and a micro-projection lens 101. The structure of the micro-projection lens bracket allows for flexible adjustment of the front-to-back and vertical positions of the micro-projection lens, enabling pupil expansion and adjustable focal length and field of view of the projected image to suit individuals with different refractive errors. The optical module consists of a microlens array 200 and an outgoing light beam 201. The microlens array is introduced to precisely converge the image to the pupil of the eye, ensuring visual clarity. After processing by the microlens array 200, the projected light beam 102 from the micro-projection lens 101 can directly enter the eyeball 303. The monitoring module consists of a monitoring device slide rail 300, a monitoring lens mount 301, a monitoring lens 302, and an eyeball 303. The monitoring device slide rail 300 allows the monitoring lens 302 to move freely back and forth within a certain range via a motor control. Simultaneously, the miniature monitoring lens 302 can rotate 360° in place, all of which facilitate real-time eyeball tracking by the monitoring module. The monitoring lens mount 301 provides fixation and cushioning for the monitoring lens, preventing lens displacement during severe vibrations and reducing the impact on the monitoring lens.

[0085] The micro display module of the embodiment is used to generate a micro display image. The micro display technology that can be used includes, but is not limited to, Mini-LED, Mini-OLED, Micro-LED, Micro-OLED, and the like. In addition, other passive light-emitting structures capable of generating a micro display image can also be used, such as LCD, DLP, LCOS, LED, laser projection technology, and the like. The micro display chip 400 has the ability to drive monochrome and color images. When the eyewear structure only needs to display monochrome images or black and white images, the display module is composed of one or more monochrome micro display chips 400 and their corresponding driving circuit and driving power supply parts 401; when the structure needs to display color images, the display module can be composed of a full-color micro display chip 400 and its driving circuit and driving power supply part 401, or can be composed of a single micro display chip 400 of red, green, and blue three primary colors and its driving circuit and driving power supply part 401, or can use multiple color micro display driving chips 400 to drive different regions of the full-color image to enhance display driving. When the display driving is driven by a full-color micro display chip 400, at this time, the three pixel points inside the micro projection lens emit different colors of light according to the different three primary color ratios, and the three pixel points are integrated to display the color, thereby realizing full-color display. When the display driving is driven by three single-color display chips 400 of red, green, and blue three primary colors, at this time, a pixel point inside the micro projection lens displays a specific color according to the different three primary color ratios.

[0086] The projection module of the embodiment projects the image generated by the micro display chip 400 through the micro projection lens 101. The micro projection lens includes, but is not limited to, a DLP (digital light processing) micro projection lens, an LCOS (liquid crystal on silicon) micro projection lens, an LED micro projection lens, a laser micro projection lens, and other micro lens modules. The micro projection lens 101 can project various images through the driving of the micro display chip 400. The micro projection lens support 100 is made of flexible material, which is beneficial to the retraction of the micro projection lens 101 and the micro projection lens support 100 when the projection function is turned off, and is also beneficial to the flexible rotation of the micro projection lens 101 in a wide range, which can realize the adjustment of a specific area and a specific focal length in cooperation with the optical module. The projection incident light 101 line can realize the projection of a specific image into the eye or on the screen through the optical module. The material of the micro projection lens support 100 can be metal, plastic, carbon fiber, rubber, magnetic material, and other composite materials. The micro projection lens support 100 should be firm and flexible. When the smart eyewear function is turned off, the micro projection lens support 100 should have a certain flexibility to retract in time. When the projection function is turned on, the micro projection lens support 100 should extend in time to ensure that the micro projection lens 101 returns to the correct projection area.

[0087] The optical module of the embodiment is used to realize local accurate imaging. When the micro projection lens 101 moves to the position of the eyeball, the projected pattern will pass through the microlens array 200 in the same optical axis region as the eyeball, and the outgoing light rays 201 enter the eye after processing. The light emitted by the micro projection lens 101 can be directly coupled with the microlens array 200 or indirectly coupled. When the microlens array 200 is indirectly coupled, some micro collimation elements such as collimating lenses, optical waveguides, gradient refractive index lenses, etc. are needed to be accessed. The micro collimation elements can be an array structure composed of at least one of the diffractive optical elements such as superlenses, photonic crystals, etc., and can also use geometric optical elements such as microlenses, total reflection lenses, mirrors, etc. When the two are directly coupled, the specific parameters of the aspheric / spherical lens (microlens) need to be considered to achieve the best coupling efficiency and focusing effect, for example, the surface smoothness, transmittance, and refractive index of the optical elements in the lens array. The wavelength matching between the optical elements and the precision of the elements can improve the coupling efficiency. The propagation path of the optical system also affects the coupling efficiency.

[0088] The monitoring module of the embodiment is used to detect the movement of the eyeball, and the monitoring module can realize real-time monitoring of the eyeball, ensure tracking of the position of the eyeball, and cooperate with the flexible rotation of the micro-projection lens 101 to realize local imaging of the lens array and accurate focusing on the pupil. The monitoring lens 302 includes but is not limited to an infrared eyeball tracking module, a capacitive eyeball tracking module, an optical eyeball tracking module, a magnetic eyeball tracking module, etc. The seat pad 301 for buffering the monitoring lens needs to have certain performance to reduce the impact on the lens. It includes certain shock-absorbing performance to absorb impact energy and reduce the impact of impact on the lens to prevent damage or destruction. Certain elasticity can restore to its original state after being stressed, providing lasting protection. Certain wear resistance can resist friction and wear, maintaining stability and reliability during long-term use. Certain corrosion resistance can resist the corrosion of chemicals, moisture or other environmental factors, maintaining the performance and function of the material. The position of the monitoring module can be located at any position of the glasses structure, including but not limited to the inside of the glasses legs, the glasses bridge, any position on the glasses frame, etc. The position of the monitoring lens 302 can also be located in the external structure added to the basic glasses structure, including but not limited to a suspension device, inside or outside the micro-projection lens, etc. The monitoring lens 302 is integrated with a light intensity sensor. The light intensity sensor usually includes a photosensitive element, such as a photoresistor or a photodiode. When the intensity of light in the environment changes, the resistance or current of these photosensitive elements will also change accordingly. The projection system measures these changes to obtain the intensity information of the ambient light. Once the intensity information of the ambient light is obtained, the projection system will adjust the brightness of the projection pattern of the micro-projection lens 101 according to the preset algorithm and logic. For example, when the ambient light is dark, the projection system will increase the brightness of the projection pattern of the micro-projection lens 101 to improve the visibility of the projected image; and in a strong light environment, the projection system will reduce the brightness of the projection pattern of the micro-projection lens 101 to save power and avoid glare. This real-time light intensity detection and brightness adjustment system can ensure that users can obtain comfortable projection image brightness in different environments, while also helping to prolong the battery life of the system.

[0089] When the structure of the embodiment is applied to a near-eye display device, the above structure can be applied to the left eye or the right eye for image display; at the same time, the above optical structure can also be applied to the left eye and the right eye for image display.

[0090] The working process of the optical structure is as shown in Figure 8 The specific working state is as follows:

[0091] The optical device is started, the micro display chip 400 generates a micro display image, the incident light 102 is projected through the micro projection lens 101, the eye position information is acquired by the monitoring lens 302 in the monitoring module, the position of the micro projection lens 101 is moved under the cooperation of the micro projection support 100, and after the image is transmitted through the microlens array 200, the emergent light 201 can be directly entered into the eyeball 303 after processing.

[0092] Embodiment two

[0093] As Figure 2 shown, the direct projection type augmented reality display glasses provided by the embodiment. The glasses sequentially include a micro display module, a projection module, an optical module, and a monitoring module from an image source to an eyeball. The optical structure includes the micro display module, the projection module, the optical module, and a diffusion module. Compared with the first embodiment, the optical module increases the pixelated perovskite quantum dot array and the optical filter.

[0094] The micro display module of the embodiment is similar to that of the first embodiment, which is not repeated here.

[0095] The projection module of the embodiment is similar to that of the first embodiment, which is not repeated here.

[0096] The monitoring module of the embodiment is similar to that of the first embodiment, which is not repeated here.

[0097] The optical module of the embodiment is composed of a microlens array 200, a perovskite quantum dot array 202, and an optical filter 203. The perovskite quantum dots are induced to crystallize in situ in the glass by various physical or chemical methods, and then the perovskite quantum dots are pixelated in the glass by heat treatment and other processes to form the perovskite quantum dot array. The methods for inducing perovskite quantum dots to crystallize include but are not limited to spin coating, inkjet printing, melt doping, sol-gel method, chemical vapor deposition, etc. The perovskite quantum dot array 202 receives the pattern information of the micro projection lens. The light source of the micro projection lens 101 is blue light or other high-energy light, and the perovskite quantum dots used are red and green quantum dots. The light-induced luminescence characteristics of the perovskite quantum dots and the high-energy characteristics of the blue light are used to achieve the final projection. The introduction of the optical filter 203 is to prevent the leakage of the projection information. Specifically, the optical filter 203 can absorb red and green light. When the quantum dots are excited by blue light to emit red and green light, the red and green light may be refracted or reflected in other directions instead of passing through the microlens array 200 and then converging to the eye, resulting in information leakage. At this time, the introduction of the optical filter 203 can absorb the light in the wrong direction to avoid the leakage of the projection information of the micro projection lens 101, thereby increasing the security. The optical filter can be replaced by other optical elements with similar functions, such as a distributed Bragg reflector, an optical lens, a holographic optical element, an optical prism, etc.

[0098] The micro display module of the present embodiment is similar to that of Embodiment 1, which will not be repeated here.

[0099] The projection module of the present embodiment is similar to that of Embodiment 1, which will not be repeated here.

[0100] The monitoring module of the present embodiment is similar to that of Embodiment 1, which will not be repeated here.

[0101] The working process of the optical structure is as shown in Figure 8 The working state of the present embodiment is as follows:

[0102] The optical device is started, the micro display chip 400 generates a micro display image, the blue light incident light 102 is projected through the micro projection lens 101, the eye position information is obtained by the monitoring lens 302 in the monitoring module, the position of the micro projection lens 101 is moved under the cooperation of the micro projection support 100, after the transmission of the image through the microlens array 200, the image first passes through the optical filter 203, reaches the perovskite quantum dot array 202, after being excited by the blue light, the perovskite quantum dot array emits red or green pattern light, after refraction by the microlens array 200, the pattern projection is realized accurately into the eye. Some refracted or reflected light in the wrong direction is absorbed by the optical filter to prevent the leakage of projection information.

[0103] Embodiment Three

[0104] As shown in Figure 7 The present embodiment provides a direct projection type augmented reality display glasses. The glasses sequentially include a micro display module, a projection module, an optical module, and a monitoring module from an image source to an eyeball.

[0105] The characteristics of each module in the optical structure of the present embodiment are similar to those of Embodiment 1, which will not be repeated here.

[0106] The helmet 500 of the embodiment can be made of lightweight materials to achieve comfort, including but not limited to: plastic, lightweight metal alloy, soft material, rubber, silicone, etc. The driving display chip and driving power supply of the overall structure are integrated inside the helmet 500. The micro projection lens packaging sheet 501 encapsulates the micro projection lens. The purpose of encapsulation is to improve the integrity of the overall structure while protecting the micro projection lens. The micro lens lens can still move flexibly in the micro projection lens packaging sheet 501. The micro projection lens packaging sheet 501 has a certain thickness, so the micro projection lens can still adjust the imaging focal length to adapt to the refractive power of different people. The optical element 502 integrates the micro lens array 5021 and the collimating element 5022. Their main function is to transmit the image projected by the micro projection lens packaging sheet 501, and the light enters the eye after passing through the optical element 502. The monitoring lens packaging sheet / wearing goggles 503 integrates the monitoring module and the wearing goggles. The function of the monitoring module is similar to that of the first embodiment, mainly the movement data of the mobile phone eyeball, including movement information and pupil size, which can realize accurate imaging in cooperation with the micro projection lens packaging sheet 501. At the same time, the monitoring lens packaging sheet / wearing goggles 503 is also one of the wearing structures, and its recess directly contacts the nose bridge. All elements are integrated with the helmet 500, which means they will move together. If the helmet 500 is in a bumpy state, it may cause projection blur and affect user experience. However, due to the cooperation between the micro projection lens packaging sheet 501 and the monitoring lens packaging sheet 503, accurate tracking of the human eye can be achieved, so the impact of the bumpy or any other small displacement of the helmet 500 on the projection clarity can be greatly reduced. In addition, due to the slightly larger volume of the helmet 500, compared with the glasses structure of the first embodiment, it can integrate a larger power and capacity power supply and better heat dissipation conditions, which can theoretically improve user experience.

[0107] The working process of the optical structure is as shown in Figure 8 The working state of the embodiment is as follows:

[0108] The optical device is started. When the helmet of the above structure is started, the monitoring lens packaging sheet 503 first acquires the eyeball position by using the monitoring lens, and then the micro display driving chip integrated in the helmet 500 starts to display the corresponding image. The micro projection lens in the micro projection lens packaging sheet 501 starts to project the pattern. After the pattern is integrated by the optical element 502, including the micro lens array 5021 converging the pattern and the collimating element 5022 further calibrating the light beam, the light finally couples into the eye after passing through the wearing goggles 503.

[0109] As shown in Figures 9-12 respectively, the principles of using the above embodiments of the application to respectively realize the adaptation of the glasses structure to different sizes of pupils, the adjustment of the field of view size of the glasses structure, the realization of the pupil expansion of the glasses structure, and the realization of the refractive power adjustment of the glasses structure are disclosed.

[0110] Figure 13 Further, a typical microlens array structure and optical path design are provided.

[0111] The above merely provides the preferred embodiment of the present application, but does not represent other forms of the present application. Any person skilled in the art may make changes or modifications to the equivalent embodiments with the disclosed technical contents. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application and according to the technical essence of the present application shall still fall within the protection scope of the present application.

[0112] The present application is not limited to the above best mode, and anyone can derive other various forms of a direct injection type augmented reality display glasses under the inspiration of the present application. Any equivalent change and modification made within the scope of the present application shall fall within the scope of the present application.

Claims

1. A direct-projection augmented reality display glasses, characterized in that: This includes the following components mounted on the glasses themselves: a projection module, an optical module, a monitoring module, and a micro-display module. The microdisplay module includes a microdisplay chip; the projection module includes a microprojection lens and a projection lens bracket with telescopic and rotating functions, the microprojection lens being connected to the microdisplay chip; the optical module includes a single or multiple microlens array; the monitoring module includes a sliding rail device and a monitoring lens; The micro-projection lens projects an image onto a spectacle lens with a microlens array. The projected light is refracted by the microlens unit and then precisely focused on the retina, or forms a virtual image in front of the eyes. The micro-projection lens can be extended and retracted in real time by rotating the structure, and the projection distance can be adjusted to achieve the adjustment of the field of view and refractive power, as well as the function of pupil dilation. The monitoring module is used for real-time monitoring of the eyeball, tracking the eyeball position, and working with the micro-projection lens to achieve local imaging of the lens array and focusing on the pupil. The light projected by the micro-projection lens enters the eye after being refracted by the microlens array, either forming a virtual image or directly entering the eye without passing through the microlens array or other refraction processing. The micro-projection lens, in conjunction with the monitoring module, modulates the projected beam according to the eye position. When the projected light passes through the microlens array, the microlens array focuses or superimposes the light on the projection line onto the user's eye. When the projected light enters the eye directly without passing through the microlens array, the micro-projection lens should move the projection distance in real time according to the eye movement information so that the projected light is directly projected into the eye. Imaging elements are not placed in the spacing regions between the microlens elements in the microlens array; The optical module also includes a perovskite quantum dot array induced by a femtosecond laser inside the lens; the perovskite quantum dot array is used to receive pattern information from the micro-projection lens and utilizes the photoluminescence properties of the perovskite quantum dots to achieve the final projection.

2. The direct-projection augmented reality display glasses according to claim 1, characterized in that: The monitoring module is equipped with a monitoring lens mount to provide fixation and cushioning for the monitoring lens.

3. The direct-projection augmented reality display glasses according to claim 1, characterized in that: In the optical module, the light beam emitted by the micro-projection lens is directly incident on the microlens array to form direct coupling, or is indirectly coupled through the transition shaping of intermediate elements.

4. The direct-projection augmented reality display glasses according to claim 3, characterized in that: When the light emitted by the micro-projection lens is indirectly coupled to the microlens array, a micro-collimation element is also provided.

5. The direct-projection augmented reality display glasses according to claim 1, characterized in that: The quantum dot materials used are CsPbBr3 and MAPbI3, and the quantum dot arrays are arranged in a matrix or honeycomb pattern.

6. The direct-projection augmented reality display glasses according to claim 1, characterized in that: The optical module also includes a filter to prevent leakage of projected information.

7. The direct-projection augmented reality display glasses according to claim 1, characterized in that: When the micro-projection lens moves, it moves in units of microlens units to ensure that it corresponds to the layout of the microlens array and avoids moving to a position between multiple microlens units; the micro-projection lens, together with the microlens array, enables the glasses to have an adjustable focal length so that the image clarity can be adjusted according to different vision requirements.

Images