Augmented reality display optics, optical systems, eyewear, and hud display systems

Abstract

The application provides an augmented reality display optical device, which comprises a substrate layer, a plurality of photoluminescent bodies and a plurality of microlenses, the substrate layer comprises a first surface and a second surface opposite to the first surface, and the substrate layer transmits ambient light. The plurality of photoluminescent bodies are dispersedly arranged in the substrate layer according to a preset pixel pitch. The plurality of microlenses are correspondingly arranged on a side of the photoluminescent bodies away from the second surface to converge light emitted by the photoluminescent bodies. Meanwhile, the application also provides an augmented reality display system, an augmented reality display glasses and an augmented reality HUD display system with the augmented reality display optical device. The augmented reality display optical device utilizes the characteristics that the photoluminescent bodies can reflect light when excited, and the gaps between the dispersed photoluminescent bodies have extremely high transmittance to ambient light, so that the display information and the ambient light can be simultaneously imaged in the human eye, thereby realizing the augmented reality display with low cost and high light efficiency.

Description

Technical Field

[0001] This application relates to the field of augmented reality display technology, and more specifically, to an augmented reality display optical device, optical system, glasses, and HUD display system. Background Technology

[0002] Augmented reality (AR) technology is a new technology that seamlessly integrates real-world and virtual-world information. It uses computer technology to simulate and overlay information that is difficult to experience in a specific time and space in the real world, applying virtual information to the real world and making it perceptible to human senses. This achieves a sensory experience that transcends reality, with the real environment and virtual objects simultaneously superimposed on the same screen or space. This technology not only displays real-world information but also simultaneously displays virtual information, with the two types of information complementing and overlapping each other. Existing AR systems typically consist of an optical engine and an optical combiner. The optical combiner reflects the image from the optical engine into the human eye while maintaining a certain transmittance of ambient light. Current AR systems cannot achieve high performance in image reflection and ambient light transmission at low cost, which prevents them from achieving high image brightness. Summary of the Invention

[0003] The purpose of this invention is to provide an augmented reality display optical device, optical system, glasses, and HUD display system to improve the aforementioned problems. This invention achieves the above objective through the following technical solutions.

[0004] In a first aspect, this application provides an augmented reality display optical device, including a substrate layer, a plurality of photoluminescent elements, and a plurality of microlenses. The substrate layer includes a first surface and a second surface opposite to the first surface, and the substrate layer transmits ambient light. The plurality of photoluminescent elements are dispersed within the substrate layer according to a preset pixel spacing. The microlenses are correspondingly disposed on the side of the photoluminescent elements away from the second surface to converge the light reflected by the plurality of photoluminescent elements.

[0005] In one embodiment, multiple microlenses converge the light emitted by multiple photoluminescent organisms to the main optical axis of the substrate layer that transmits ambient light.

[0006] In one embodiment, the augmented reality display optics further includes a plurality of reflective elements, which are respectively disposed on the side of the photoluminescent body away from the first surface.

[0007] In one implementation, the reflective element is also used to block ambient light from passing through.

[0008] In one embodiment, the photoluminescent material is made of quantum dots or nano-phosphors.

[0009] In one embodiment, the pixel period of the plurality of photoluminescent elements is 25μm-30μm.

[0010] In one embodiment, the duty cycle of the plurality of photoluminescent elements is 8%-10%.

[0011] In a second aspect, the present invention provides an augmented reality display system, which includes an image projection device and the aforementioned augmented reality display optics; the image projection device is used to emit image excitation light to the augmented reality display optics; the augmented reality display optics is used to transmit ambient light; and the augmented reality display optics is also used to reflect the image excitation light for imaging.

[0012] In some implementations, the image projection device is configured to drive the generation of image excitation light in a pulse-driven manner.

[0013] In some embodiments, the image projection device is also configured to adjust the brightness of the image excitation light in a manner that adjusts the drive current.

[0014] Thirdly, the present invention provides augmented reality display glasses, which include a frame, lenses and the aforementioned augmented reality display system. The frame includes a lens frame and temple supports connected to each other. The lenses are disposed in the lens frame and the image projection device is disposed in the temple supports. The augmented reality display optics are attached to the inner surface of the lenses, or the lenses serve as the base layer of the augmented reality display optics.

[0015] Fourthly, the present invention provides an augmented reality HUD display system, including a windshield and the above-mentioned augmented reality display system, wherein the augmented reality display optics are attached to the inner surface of the windshield, or the windshield serves as the substrate layer of the augmented reality display optics.

[0016] Fifthly, the present invention provides an augmented reality HUD display system, including a stand-alone HUD screen and the above-mentioned augmented reality display system, wherein augmented reality display optics are attached to the inner surface of the stand-alone HUD screen, or the stand-alone HUD screen serves as the substrate layer for the augmented reality display optics.

[0017] Compared to existing technologies, the augmented reality display optical devices, optical systems, glasses, and HUD display systems provided by this invention utilize the characteristics of photoluminescent materials that reflect light when excited and the extremely high transmittance of ambient light through the gaps between discrete photoluminescent materials, enabling simultaneous imaging of display information and ambient light in the human eye, thereby achieving augmented reality display at low cost and high light efficiency.

[0018] These or other aspects of the invention will become more apparent from the following description of the embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an augmented reality display optical device provided in the first embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of another augmented reality display optical device provided in the first embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of an augmented reality display system provided in the second embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of an augmented reality display glasses from a first-view perspective, provided in the third embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the structure of an augmented reality display glasses from a second perspective, provided in the third embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of an augmented reality HUD display system provided in the fourth embodiment of the present invention from a first-view perspective.

[0026] Figure 7 This is a schematic diagram of the structure of an augmented reality HUD display system provided in the fourth embodiment of the present invention from a second perspective.

[0027] Figure 8 This is a schematic diagram of the structure of another augmented reality HUD display system provided in the fifth embodiment of the present invention from a first-view perspective.

[0028] Figure 9 This is a schematic diagram of the structure of another augmented reality HUD display system provided in the fifth embodiment of the present invention from a second perspective. Detailed Implementation

[0029] To facilitate understanding of this application, embodiments of the invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present application. However, embodiments of the present application can be implemented in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0030] Unless otherwise defined, 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 embodiments of this application is for the purpose of describing particular implementations only and is not intended to be limiting of this application.

[0031] In the field of augmented reality display technology, from the perspective of light sources, the main technologies include TFT-LCD / AM-OLED (TFT-LCD: Thin Film Transistor Liquid Crystal Display; AM-OLED: Active Matrix Organic Light Emitting Diode) display screens based on traditional display panels; LED (LED: Light Emitting Diode) / laser light source projection technology based on DLP (Digital Light Processing) and 3LCD (3LCD: decomposes the light emitted by the light source into three colors: R (red), G (green), and B (blue) – the three primary colors of light); LCOS (Liquid Crystal with Silicon) light source technology; and laser scanning schemes based on MEMS (Micro-Electro-Mechanical Systems) systems. From the perspective of optical combiners, the main technologies include Birdbath (curved mirror), freeform surfaces, geometric waveguides (also known as arrayed waveguides), and diffractive waveguide technologies (including surface relief gratings and holographic gratings). Among these, Birdbath, freeform surfaces, and arrayed waveguides are all technologies based on geometric optics. Birdbath and freeform surface technologies achieve optical functionality through directional light reflection and a semi-reflective coating on the surface. These technologies have relatively low production costs and can achieve a wide field of view. However, because such technologies are difficult to implement on thin lenses, products based on these technologies typically lack the lightweight form factor of ordinary eyeglasses. Furthermore, the presence of the semi-reflective coating can affect ambient light to some extent, compromising the user's ability to observe their surroundings. Arrayed waveguide technology uses a multi-layered reflective array coating on the reflective surface of a freeform surface to reduce product size; however, due to its extremely high manufacturing complexity, the cost remains substantial.

[0032] Currently, AR glasses based on diffractive waveguide technology exist on the market. Diffractive waveguide technology is based on micro-nano optics and often employs gratings or holographic gratings with surface relief structures. For surface relief gratings, while traditional rectangular gratings have mature manufacturing processes and good mass production capabilities, they suffer from issues with light efficiency. For holographic gratings, due to material and structural limitations, the achievable refractive index modulation is relatively limited, making them inferior to surface relief gratings in terms of viewing angle, light efficiency, and clarity. Furthermore, their fabrication process is costly and difficult to mass-produce. Additionally, optical combiners based on diffractive optics technology are highly selective for wavelength diffraction angles, easily causing dispersion phenomena and requiring extremely high manufacturing precision, further increasing the cost of this technology. Therefore, AR glasses based on diffractive waveguide technology are relatively expensive. Low-cost, low-power, miniaturized, high-brightness, and high-transmittance AR products are the main direction of future technological pursuit.

[0033] Therefore, after long-term research, the inventors have provided an augmented reality display optical device, optical system, glasses, and HUD display system to achieve low-cost, high-efficiency augmented reality display.

[0034] First Embodiment

[0035] Please see Figure 1 This application provides an augmented reality display optical device 10, which includes a substrate layer 200, a plurality of photoluminescent elements 100, and a plurality of microlenses 110. The substrate layer 200 is capable of transmitting ambient light and includes a first surface 210 and a second surface 220 opposite to the first surface 210. The photoluminescent elements 100 are dispersed within the substrate layer 200 at a predetermined pixel spacing and are spaced apart from each other. The plurality of microlenses 110 are correspondingly disposed on the side of the photoluminescent elements 100 away from the second surface 220 to converge the light emitted by the plurality of photoluminescent elements 100.

[0036] The substrate layer 200 is transparent to ambient light and can be attached to other display devices as an adhesive layer. In use, the first surface 210 can be close to the human eye. Ambient light, for example, can be incident on the substrate layer 200 through the second surface 220, pass through the substrate layer 200, and exit from the first surface 210 to form an image in the human eye. In some embodiments, the substrate layer 200 can be planar or freeform. In this embodiment, the first surface 210 is a freeform surface, and the second surface 220 can be mounted on various display systems, such as lenses for AR glasses, windshields for HUD devices, and independent HUD screens. The substrate layer 200 can also be directly used as all or part of the lenses for AR glasses, windshields for HUD devices, and independent HUD screens.

[0037] A photoluminescent material 100 refers to a luminescent material that emits light when excited by excitation light. The excitation light can be visible light, laser light, etc. As one implementation, the photoluminescent material 100 can be quantum dots or nano-phosphors. Quantum dots are nanoscale semiconductors; by applying a certain electric field or light pressure to these nano-semiconductor materials, they emit light of a specific frequency. The frequency of the emitted light changes with the size of the semiconductor, thus the color of the emitted light can be controlled by adjusting the size of the nano-semiconductor. Nano-phosphors are nanomaterials that fluoresce when excited.

[0038] Multiple photoluminescent elements 100 are discretely disposed within the substrate layer 200, and the multiple photoluminescent elements 100 are dispersed according to a preset pixel spacing, where pixel spacing refers to the distance between adjacent photoluminescent elements 100. Furthermore, in some embodiments, the multiple photoluminescent elements 100 are uniformly distributed within the substrate layer 200, that is, adjacent photoluminescent elements 100 have a predetermined gap or a predetermined pixel period, where pixel period refers to the distance between adjacent pixels.

[0039] In some embodiments, the pixels of the plane formed by the multiple photoluminescent elements 100 can be 720P, 1080P, 1920P, 2560P, etc. For example, in some embodiments, the pixel period of the multiple photoluminescent elements 100 is 25μm-30μm, that is, the pixel spacing between two adjacent photoluminescent elements 100 is 25μm-30μm. A suitable pixel period value can ensure that the image excitation light reflected by each photoluminescent element 100 can be completely stitched into an image, avoiding image overlap, while also allowing ambient light to have good transmittance.

[0040] As an example, the area of ​​the base layer 200 is 30 mm. 2 For example, to achieve a 1080P pixel resolution, the pixel period of multiple photoluminescent devices 100 is 30 / 1080*10. 3 (μm) 27.8μm. Of course, it is understandable that in some other implementations, a definite pixel period value can be obtained based on the pixel resolution and the area of ​​the substrate 200.

[0041] In some embodiments, the duty cycle of each photoluminescent element 100 is 8%-10%. Duty cycle refers to the proportion of each photoluminescent element 100 in each pixel. When the duty cycle is 8%-10%, the light-blocking area formed by the photoluminescent element 100 is smaller, allowing ambient light to pass through the second surface 220, the substrate layer, and the first surface 210 in sequence, thus improving the imaging effect of ambient light. Of course, it is understood that in other embodiments, the duty cycle may be other values.

[0042] Multiple photoluminescent elements 100 can be arranged in an array, such as a rectangular array or a circular array. For example, multiple photoluminescent elements 100 can be arranged in a rectangular array with perpendicular rows and columns. In this way, the magnified image light formed by each photoluminescent element 100 can be stitched together to form a complete image without overlap. At this time, the spacing between the photoluminescent elements 100 in each row can be equal, and the spacing between the photoluminescent elements 100 in each column can also be equal.

[0043] Multiple microlenses 110 are correspondingly disposed on the side of the multiple photoluminescent elements 100 away from the second surface 220 to converge the light reflected by the multiple photoluminescent elements 100, so that the light reflected by the multiple photoluminescent elements 100 can be converged to the human eye. Each microlens 110 is configured to deflect light at the required angle. In some embodiments, the multiple microlenses 110 converge the light emitted by the multiple photoluminescent elements 100 to the principal optical axis, which refers to the principal optical axis of the substrate layer transmitting ambient light, i.e., the optical axis where the focal point of the substrate layer is located. For example, when the substrate layer is attached to or is part of an eyeglass lens, the principal optical axis can refer to the focal axis of the lens, so that the light converged by the multiple microlenses 110 can be converged to form an image in the human eye.

[0044] When the photoluminescent body 100 is excited to generate light, most of the light is reflected toward the microlens 110 and passes through the first surface 210. However, some of the light still exits toward the second surface 220. This light exiting from the second surface 220 cannot enter the human eye, which will lead to a reduction in light efficiency.

[0045] Therefore, refer to Figure 2 In some embodiments, the augmented reality display optics may further include a plurality of reflective elements 120, the number of reflective elements 120, the number of photoluminescent elements 100, and the number of microlenses 110 may all be equal. The plurality of reflective elements 120 are correspondingly disposed on the side of the photoluminescent element 100 away from the first surface 210, that is, the photoluminescent element 100 is located between the microlenses 110 and the reflective elements 120, so that ambient light can pass through the substrate layer 200 through the gap between adjacent reflective elements 120.

[0046] The reflective element 120 can reflect a portion of the light emitted by the photoluminescent device 100 toward the first surface 210 to improve luminous efficiency and prevent light loss. Simultaneously, in some embodiments, the reflective element 120 also blocks ambient light from passing through, i.e., it prevents ambient light from entering the substrate layer 200 via the second surface 220 and then passing through the reflective element 120 to incident on the photoluminescent device 100, thus creating a light-shielding effect on the photoluminescent device 100. This prevents ambient light from overlapping with the image excitation light reflected by the photoluminescent device 100. The reflective element 120 can be a mirror with a light-shielding layer, in which case the light-shielding layer is positioned facing the second surface 220. The size of the mirror can match the size of the photoluminescent device 100 or be larger than the size of the photoluminescent device 100.

[0047] In summary, the augmented reality display optical device 10 provided in this application embodiment utilizes the light generated by the photoluminescent body 100 after being excited by the image excitation light. The light generated by all the photoluminescent bodies 100 is converged through the microlens 110, while the image light can pass through the gaps between the discretely distributed photoluminescent bodies 100, allowing the user to view both the image light and the ambient light at the same time. The entire augmented reality display optical device 10 is low in cost and has high light efficiency.

[0048] Second Embodiment

[0049] Please see Figure 3 This application also provides an augmented reality display system 20, which includes an image projection device 300 and the augmented reality display optics 10 from the first embodiment. The image projection device 300 emits image excitation light to the augmented reality display optics 10, which excites a photoluminescent body 100, causing the photoluminescent body 100 to produce corresponding image light. The augmented reality display optics 10 transmits ambient light and reflects image light. The image projection device 300 can be a laser display optical engine, and the image light emitted by the laser display optical engine can be a three-primary-color laser image to achieve better excitation of the photoluminescent body 100 and improve the imaging effect.

[0050] In one implementation, the image projection device 300 is configured to drive the generation of image excitation light in a pulse-driven manner. This method avoids the light efficiency loss that occurs when using a spatial light modulator for adjustment in the traditional way. Furthermore, the image projection device can also be configured to adjust the brightness of the image excitation light by adjusting the drive current. By adjusting the drive current, stepless brightness adjustment can be achieved, resulting in better and more uniform adjustment. Of course, it is understood that in other implementations, the image projection device 300 may also use a spatial light modulator to adjust the brightness of the image excitation light.

[0051] For clarity, please refer to the following document again. Figure 3 , Figure 3 The solid line represents the optical path of the image light, and the dashed line represents the optical path of the ambient light. Since the image projection device 300 can be a laser display optical engine, and laser light sources have advantages such as high brightness, small divergence angle, wide color gamut, and high energy efficiency, high luminous brightness can be guaranteed with low power consumption. Furthermore, this display system utilizes the augmented reality display optics 10 from the first embodiment. The image projection device 300 has high photoexcitation efficiency and high transmittance to ambient light, enabling it to maintain high-brightness imaging without affecting the user's observation of ambient light.

[0052] Third Embodiment

[0053] Please see Figure 4 This application provides an augmented reality display glasses 30, which includes a frame 500, lenses 400, and an augmented reality display system 20 as described in the second embodiment. The frame 500 includes a frame 520 and temple supports 510 connected to each other. The lenses 400 are disposed in the frame 520, and an image projection device 300 is disposed in the temple supports 510. Augmented reality display optics 10 are attached to the inner surface of the lenses 400.

[0054] Please refer to the following: Figure 4 and Figure 5 The frame 500 provides a mounting base for the lens 400 and the augmented reality display system 10. In some embodiments, the frame 500 includes interconnected lens frames 520 and temple supports 510. The lens frames 520 may be annular structures, and there may be two lens frames 520 connected to each other. The interior of the annular lens frames 520 is used to mount the lens 400. The temple supports 510 are rotatably mounted on the lens frames 510. Similarly, there may be two temple supports 510, each mounted on one of the two lens frames 520.

[0055] Please refer to it again. Figure 4 In some embodiments, the lens 400 and the frame 520 may have the same external shape to facilitate the fitting and installation of the lens 400 and the frame 520. Similarly, there may be two lenses 400, each disposed in one of two frames 520. The lens 400 may be an optical device with a curved surface structure made of optical materials such as glass or resin, exhibiting excellent transmittance to ambient light.

[0056] Specifically, the augmented reality display optics 10 is attached to the inner surface of the lens 400, that is, the surface of the lens 400 facing the temple support 510. In one embodiment, the second surface 220 of the substrate layer 200 of the augmented reality display optics 10 is attached to the inner surface of the lens 400.

[0057] In some embodiments, the substrate 200 of the augmented reality display optics 10 can also be directly used as a lens 400 and directly mounted on the lens frame 520. Alternatively, the substrate 200 can be embedded in the lens 400 as only a part of the lens 400.

[0058] Similarly, to improve the display effect of the augmented reality glasses 30, the augmented reality display system 20 can also include two systems. The augmented reality display optics 10 of the two systems are respectively mounted on two lenses 400, and the two image projection devices 300 are respectively mounted on two frame supports 510. By reasonably adjusting the projection angle of the image projection device 300, the augmented reality display optics 10 is positioned in the optical path of the image light, and the image light is completely projected onto the augmented reality display optics 10 and excites the photoluminescent device 100.

[0059] In some other embodiments, the image projection device 300 may also be disposed in the frame 520, such that the augmented reality display optics 10 is located in the optical path of the image light, and the augmented reality optics 10a has extremely high reflectivity to the image light.

[0060] Fourth embodiment

[0061] Please refer to the following: Figure 6 and Figure 7 This application also provides an augmented reality HUD display system 40, which includes a windshield 500 and the augmented reality display system 20 in the second embodiment.

[0062] The windshield 500 can be a car windshield, or the windshield of other equipment or buildings. The augmented reality display optics 10 is attached to the inner surface of the windshield 500. The image projection device 300 in the augmented reality display system 20 can be installed on the A-pillar inside the vehicle or on other components where the image projection device 300 can be mounted. The augmented reality display optics 10 is located in the optical path of the image projection device 300 so that the photoluminescent body 100 can be excited.

[0063] In some implementations, such as Figure 6As shown, the augmented reality display optics 10 can be attached to only a portion of the windshield 500, or it can be attached to the entire windshield 500. Specifically, the augmented reality display optics 10 is attached to the inner surface of the windshield 500. It is understood that the inner surface of the windshield 500 refers to the side of the windshield 500 located inside the vehicle (using a car as an example; similar implementations exist in other devices). As one implementation, the second surface 220 of the substrate layer 200 of the augmented reality display optics 10 is attached to the inner surface of the windshield 400.

[0064] In some embodiments, the substrate layer 200 of the augmented reality display optics 10 can also be directly used as the windshield 500, directly mounted on the frame of the windshield 500 or other equipment mounting frame. Alternatively, the substrate layer 200 can be embedded within the windshield 500 as only a part of it. In some embodiments, the image projection device 300 is disposed on one side of the inner surface of the windshield 400, specifically, for example, on the A-pillar of a car or other fixed devices, provided that the augmented reality display optics 10 is located in the optical path of the image light emitted by the image projection device 300.

[0065] Fifth embodiment

[0066] Please refer to the following: Figure 8 and Figure 9 This application also provides an augmented reality HUD display system 50, which includes an independent HUD screen 600 and an augmented reality display system 20 in the second embodiment, with augmented reality display optics 10 attached to the inner surface of the independent HUD screen 600.

[0067] The standalone HUD screen 600 can be configured to be portable and can be attached to the glass of a car or other vehicle using adhesive or other methods, serving as a display screen. For example, the standalone HUD screen 600 can be attached to the inner surface of the car's windshield, roughly in front of the steering wheel, serving as a head-up display for the driver and passengers.

[0068] Specifically, the augmented reality display optics 10 is attached to the inner surface of the standalone HUD screen, that is, located on the side of the standalone HUD screen closer to the rear optical system (in the automotive field, it is located on the side of the standalone HUD screen closer to the driver and passengers). As one embodiment, the second surface 220 of the substrate layer 200 of the augmented reality display optics 10 is attached to the inner surface of the standalone HUD screen 600.

[0069] In some embodiments, the substrate 200 of the augmented reality display optics 10 can also be directly used as a standalone HUD screen 600. Alternatively, the substrate 200 can be embedded within the standalone HUD screen 600 as only a part of it. In some embodiments, the image projection device 300 is disposed on one side of the inner surface of the standalone HUD screen. Specifically, for example, it can be disposed on the A-pillar of a car or other fixed devices, ensuring that the augmented reality display optics 10 is positioned in the optical path of the image light emitted by the image projection device 300, so that the photoluminescent device 100 can be excited.

[0070] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. An augmented reality display optical device, characterized in that, include: A substrate layer, the substrate layer including a first surface and a second surface opposite to the first surface, the substrate layer transmitting ambient light; Multiple photoluminescent elements are dispersed within the substrate layer according to a preset pixel interval; Multiple microlenses are disposed on the side of the photoluminescent body away from the second surface to converge the light emitted by the multiple photoluminescent bodies. The multiple microlenses converge the light emitted by the multiple photoluminescent bodies to the main optical axis of the substrate layer transmitting ambient light. as well as A plurality of reflective elements are disposed on the side of the photoluminescent body away from the first surface. The reflective elements are used to reflect a portion of the light emitted by the photoluminescent body toward the first surface, and the reflective elements are also used to block ambient light from passing through.

2. The augmented reality display optical device according to claim 1, characterized in that, The photoluminescent material is made of quantum dots or nano-phosphors.

3. The augmented reality display optical device according to claim 1, characterized in that, The pixel period of the plurality of photoluminescent elements is 25μm-30μm.

4. The augmented reality display optical device according to claim 1, characterized in that, The duty cycle of each photoluminescent body is 8%-10%.

5. An augmented reality display system, characterized in that, include: Image projection device and augmented reality display optics as described in any one of claims 1-4; The image projection device is used to emit image excitation light to the augmented reality display optics; The augmented reality display optics are used to transmit ambient light; The augmented reality display optics are also used to reflect the image excitation light for imaging.

6. The augmented reality display system according to claim 5, characterized in that, The image projection device is configured to generate the image excitation light in a pulse-driven manner.

7. The augmented reality display system according to claim 6, characterized in that, The image projection device is also configured to adjust the brightness of the image excitation light by adjusting the drive current.

8. An augmented reality display glasses, comprising a frame, lenses, and an augmented reality display system as described in any one of claims 5-7, characterized in that, The eyeglass frame includes an interconnected frame and temple supports. The lens is disposed in the frame, and the image projection device is disposed in the temple supports. The augmented reality display optics are attached to the inner surface of the lens; or the lens serves as the base layer of the augmented reality display optics.

9. An augmented reality display HUD system, comprising a windshield and an augmented reality display system as described in any one of claims 5-7, characterized in that, The augmented reality display optics are attached to the inner surface of the windshield; Alternatively, the windshield can serve as the base layer for the augmented reality display optics.

10. An augmented reality display HUD system, comprising a standalone HUD screen and an augmented reality display system as described in any one of claims 5-7, characterized in that, The augmented reality display optics are attached to the inner surface of the standalone HUD screen; or the standalone HUD screen serves as the base layer for the augmented reality display optics.

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