Intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects

The image collector and image processor of smart vision assisted glasses fuse the binocular images of patients with visual field defects, and use the near-eye display optical system to display, the problem that the prior art cannot effectively expand the visual range of patients with visual field defects is solved, and the field of view is widened and stereoscopic vision is improved.

CN117676120BActive Publication Date: 2025-03-28SHENZHEN EYE HOSPITAL
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Patent Information

Application Number
CN202311719391.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-14
Publication Date
2025-03-28
Estimated Expiration
2043-12-14

AI Technical Summary

Technical Problem

The prior art cannot effectively expand the visual range of patients with visual field defects, and the existing electronic visual aids cannot provide targeted visual aids and corrections to the unique visual characteristics of patients with visual field impairment.

Method used

An intelligent vision assisted glasses are designed, using an image collector corresponding to the left and right eyes, and the acquired images are algorithmically fused through an image processor, using the advantages of visual superposition of human binocular vision to form three-dimensional vision, and display it through a high-quality near-eye display optical system.

Benefits of technology

Effectively expand the vision field, help patients with visual field defects achieve stereoscopic vision and improve their visual ability.

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Abstract

The present invention relates to a kind of intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects, comprising: left and right near-eye display optical systems corresponding to the left and right eyes, left and right image collectors corresponding to the left and right eyes, and an image processor; the image collector is electrically connected to the image processor, and is used to perform algorithm fusion on the images respectively collected by the left and right image collectors; the near-eye display optical system is electrically connected to the image processor, and is used to transmit the fused image to the near-eye display optical system for display, so that the fused visual field is larger than the visual field collected by any one of the image collectors, and the enhancement effect of binocular vision superposition of human eyes is better than monocular vision to form stereoscopic vision. The present application restores 3D stereoscopic vision through an image processor in conjunction with a high-quality near-eye display optical system, which can effectively expand the visual field, and is conducive to patients with visual field defects to achieve stereoscopic vision and improve visual ability.
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Description

Technical Field

[0001] The present invention relates to the technical field of visual field defect, and more specifically to a pair of intelligent vision-aiding glasses for expanding the visual field of patients with visual field defect. Background Art

[0002] Irreversible visual field loss and reduction is one of the main manifestations of visual disability, which seriously affects the quality of life of patients. Peripheral visual field loss refers to the reduction of the visual field, leaving only a small range of visual field centered on the point of fixation, and the eyes are like looking at the world through a thin paper tube (i.e., tubular vision). The World Health Organization stipulates that a visual field of less than 10 degrees is considered blind. Visual field loss makes patients unable to walk normally, lose their ability to live and work normally, seriously endanger their personal quality of life, and impose a heavy burden on their families and society. Glaucoma, retinitis pigmentosa, pituitary tumors, and diseases related to the visual pathway and visual center can all cause varying degrees of visual field loss, and the resulting disability and blindness problems are becoming more and more common. Taking glaucoma, the world's largest irreversible blinding eye disease, as an example, visual field loss is an inevitable result of the development of glaucoma. Although the progression of the disease can be controlled to a certain extent after intraocular pressure reduction treatment, a considerable number of patients have irreversible visual damage due to untimely medical treatment. Therefore, how to utilize the patient's residual visual function to perform visual impairment rehabilitation to effectively improve the patient's quality of life not only meets the visual aid needs of a large number of patients with visual field defects, but also has practical significance for reducing the medical and security burden of the entire society.

[0003] Compared with the research on the pathogenesis and treatment of eye diseases, the current research on the visual impairment caused by eye diseases and the visual aid technology is still insufficient. This also leads to the fact that compared with the mature hearing aid industry, the visual aid industry is still in its early stages of development, the market technology is still in the stage of being improved, and there is an even greater lack of visual aid products for visual field damage.

[0004] Traditional vision aids can be divided into two categories: optical and non-optical. Optical vision aids use the magnifying effect of convex lenses or optical systems. The most common and easily available handheld magnifiers are a type of optical vision aid. Others include single / binocular telescopes, mid-range glasses, near-view glasses, paperweight-type vision aids, etc. Non-optical vision aids do not improve patients' vision through the magnifying effect of convex lenses or optical systems, but by changing the surrounding environment. For example, improving lighting conditions in the patient's environment, large-print printing, enhancing contrast, and reducing glare are all such vision aids. However, most traditional optical vision aids have fixed zoom ratios, single application scenarios, and a small visual range. People with low vision have difficulty reading with a magnifier, and their efficiency and experience need to be improved.

[0005] In the existing technology, with the rapid development of technology, electronic visual aids have been applied. For example, ODGR-7, a smart glasses released in 2016 to help visually impaired people, uses AR technology to improve users' vision. The device is equipped with an adjustable high-definition magnification camera, which can present high-definition, holographic images at a refresh rate of 60 Hz through a pair of 720p lenses through voice commands. Through this smart glasses, users can easily read small words on books and play the piano by looking at the five-line music score. The glasses released in 2017, eSight3. This pair of glasses is equipped with a high-speed, high-definition camera, which uses algorithms to enhance the quality and contrast of the video and project it on two OLED screens in front of the user's eyes to help low-vision patients regain their sight. Although these electronic visual aids can provide visual aids for low-vision patients to a certain extent, these devices are only suitable for patients with low vision but normal visual field, and cannot provide targeted visual aids and corrections for the unique visual characteristics of patients with impaired visual field. In addition, they have disadvantages such as high price, single function, and uncomfortable wearing, which are not conducive to the promotion and use of electronic visual aids. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a pair of intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects in view of the above-mentioned defects in the prior art.

[0007] The technical solution adopted by the present invention to solve its technical problems is: constructing a pair of intelligent aid glasses for expanding the visual field of patients with visual field defects, including: left and right near-eye display optical systems arranged corresponding to the left and right eyes, left and right image collectors arranged corresponding to the left and right eyes, and an image processor; the image collector is electrically connected to the image processor, and is used to perform algorithmic fusion on the images respectively collected by the left and right image collectors; the near-eye display optical system is electrically connected to the image processor, and is used to transmit the fused image to the near-eye display optical system for display, so that the fused visual field range is larger than the visual field range collected by any one image collector, and the enhancement effect of binocular vision superposition of the human eye is better than monocular vision to form stereoscopic vision.

[0008] Furthermore, the image processor comprises:

[0009] An image input unit, used for receiving left and right images respectively input by left and right image collectors;

[0010] An image recognition unit, used for recognizing the left and right images input by the image input unit;

[0011] An image processing unit, used for dividing the left and right images into frames to confirm the focus of the images;

[0012] An image fusion unit, used for fusing and outputting the left and right images with confirmed focus;

[0013] The image output unit is used to output the fused image to the near-eye display optical system for display.

[0014] Furthermore, the image collector comprises:

[0015] A sensing unit for recording and transmitting images;

[0016] A zoom unit for changing the shooting range;

[0017] A driving unit, used for adjusting the focal length of the zoom unit;

[0018] The zoom unit is drivingly connected to the driving unit, and the sensor unit is electrically connected to the image input unit.

[0019] Furthermore, the near-eye display optical system comprises: a light splitting unit, a polarization conversion unit and a reflection unit coaxially arranged in sequence along the incident direction of the human eye optical axis, and a lens group unit located on the optical axis of the micro-image display;

[0020] The lens group unit is used to refract the image light emitted by the micro-image display; the splitter unit is used to reflect the image light refracted by the lens group unit onto the reflection unit and transmit the image light reflected by the reflection unit to the human eye; the polarization conversion unit is used to convert the image light into polarized light that can pass through the splitter unit.

[0021] Furthermore, the light splitting unit is a semi-transmissive and semi-reflective optical element; the angle between the semi-transmissive and semi-reflective optical element and the optical axis of the human eye is 45°.

[0022] Furthermore, the reflection unit is a reflection optical element; the reflection optical element comprises an optical reflection surface, and the optical reflection surface is concave toward the viewing direction of human eyes.

[0023] Furthermore, the polarization conversion unit is a polarization optical element; the polarization optical element is perpendicular to the optical axis of the human eye.

[0024] Furthermore, the lens group unit is composed of a piece of lens; the lens group unit includes a first lens arranged along the optical axis direction of the micro image display; the first lens is a double convex lens; the optical surface of the first lens facing the micro image display is convex toward the micro image display; the optical surface of the first lens facing the human eye observation side is convex toward the human eye.

[0025] Furthermore, the lens group unit is composed of three lenses, namely a first lens, a second lens and a third lens which are arranged in sequence along the optical axis direction from the human eye viewing side to the micro image display side.

[0026] Furthermore, the optical surfaces of the first lens and the third lens facing the micro image display are both concave toward the micro image display; the optical surfaces of the first lens and the third lens facing the human eye observation side are both convex toward the human eye; the optical surface of the second lens facing the micro image display is convex toward the micro image display, and the optical surface of the second lens facing the human eye observation side is convex toward the human eye.

[0027] The beneficial effects of the present invention are as follows: the intelligent vision-aiding glasses of the present application adopt image collectors respectively arranged corresponding to the left and right eyes, independently collect images of the left and right eyes, and fuse the left and right images through an image processor, utilize the enhancement effect of binocular vision superposition of the human eye that is better than monocular vision, and cooperate with a high-image quality near-eye display optical system to restore 3D stereoscopic vision, which can effectively expand the field of vision, help patients with visual field defects to achieve stereoscopic vision, and improve visual ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0029] Figure 1 This is a structural block diagram of a pair of smart vision-aiding glasses for expanding the visual field of patients with visual field defects according to an embodiment of the present invention;

[0030] Figure 2 This is a principle block diagram of a pair of smart vision-aiding glasses for expanding the visual field of patients with visual field defects according to an embodiment of the present invention;

[0031] Figure 3 This is a diagram of the optical path structure of smart vision-aiding glasses for expanding the visual field of patients with visual field defects according to an embodiment of the present invention;

[0032] Figure 4 is a light path structure diagram of a lens assembly unit according to a first embodiment of the present invention;

[0033] Figure 5 This is a diagram of the optical path structure of the lens assembly unit according to the second embodiment of the present invention.

[0034] In the figure, 1. image processor; 2. image collector; 3. near-eye display optical system; 4. human eye; 5. micro image display; 11. image input unit; 12. image recognition unit; 13. image processing unit; 14. image fusion unit; 15. image output unit; 21. sensing unit; 22. zoom unit; 23. driving unit; 31. spectroscopic unit; 32. polarization conversion unit; 33. reflection unit; 34. lens group unit; 341. first lens; 342. second lens; 343. third lens. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention. Example

[0036] Embodiment of the present invention Figures 1 to 4 As shown, a pair of intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects is provided, comprising: left and right near-eye display optical systems 3 corresponding to the left and right eyes, left and right image collectors 2 corresponding to the left and right eyes, and an image processor 1; the image collector 2 is electrically connected to the image processor 1, and is used to perform algorithm fusion on the images respectively collected by the left and right image collectors 2; the near-eye display optical system 3 is electrically connected to the image processor 1, and is used to transmit the fused image to the near-eye display optical system 3 for display, so that the fused visual field is larger than the visual field collected by any one of the image collectors, and the enhancement effect of binocular vision superposition of the human eye is better than that of monocular vision to form stereoscopic vision.

[0037] The left and right eyes have independent near-eye display optical systems 3 and image collectors 2, respectively. The two image collectors 2 are equivalent to two eyes, which continuously capture the patient's front field of view. Since the field of view captured by the two image collectors 2 is different, the left and right images are transmitted to the image processor 1 for algorithm fusion, that is, the two images are fused. The fused field of view is larger than the field of view captured by any image collector 2. The human eye 4 uses the enhancement effect of binocular vision superposition that is better than monocular vision, and cooperates with the near-eye display optical system 3 to restore 3D stereoscopic vision, so that patients with visual field damage can better form stereoscopic vision while obtaining a wider field of view, and obtain a field of view expansion that exceeds the monocular camera through binocular superposition, thereby achieving visual ability improvement. This is also the most significant technical feature of the electronic visual aid that distinguishes this application from the existing monocular camera.

[0038] In a further embodiment, the image processor 1 comprises:

[0039] The image input unit 11 is used to receive the left and right images respectively input by the left and right image collectors 2;

[0040] The image recognition unit 12 is used to recognize the left and right images input by the image input unit 11;

[0041] An image processing unit 13, used for dividing the left and right images into frames to confirm the focus of the image;

[0042] An image fusion unit 14 is used to fuse and output the left and right images of which the focus has been confirmed;

[0043] The image output unit 15 is used to output the fused image to the near-eye display optical system 3 for display.

[0044] Specifically, the output of the image input unit 11 is connected to the image recognition unit 12, that is, after the left and right image collectors 2 transmit the left and right images through the image input unit 11, the image recognition unit 12 will recognize the content of the left and right images to perform the next step according to the image content. For example, if it is recognized that the current left and right image content is mainly text content, then the image recognition unit 12 will send a reading signal to the image processing unit 13, and the image processing unit 13 confirms the focus of the left and right images, focuses on the text and its text background, and improves the contrast, while other backgrounds other than the text will be blurred. After the left and right images are processed in the same way, the image fusion unit 14 fuses the two images to provide the patient with a text image that is highlighted for the patient to read, such as the words on the book, which will be fused to generate an image with a three-dimensional book and text, and the rest of the background will be blurred. In non-text-oriented images, such as the scenery in front of us, since the angles captured by the left and right image collectors 2 may be different, after the image processing unit 13 cuts the two images, the overlapping and identical parts of the two images are retained, such as the sky and white clouds. In the overlapping part of the image, for objects such as trees, since the visual angles of the left and right eyes are different, the image processing unit 13 will perform three-dimensional modeling based on the shapes of the trees in the left and right images, and then send the three-dimensional model, the non-overlapping parts of the left and right images, and the overlapping but identical retained parts to the image fusion unit, which fuses them to form a fused image with stereoscopic vision. The image output unit 15 transmits the fused image to the near-eye display optical system 3 for display.

[0045] The image processing unit 13 performs synchronous processing on each left and right frame of the image, so that the content seen by the left and right eyes of the patient can be synchronized and the patient can view the field of view in front of the body in real time.

[0046] In a further embodiment, the image collector 2 comprises:

[0047] A sensor unit 21, used for recording and transmitting images;

[0048] A zoom unit 22, used to change the shooting range;

[0049] A driving unit 23, used for adjusting the focal length of the zoom lens;

[0050] The zoom unit 22 is drivingly connected to the driving unit 23 , and the sensor unit 21 is electrically connected to the image input unit 11 .

[0051] The image in front of the patient is captured by the cooperation of the sensor unit 21 and the zoom unit 22. The driving unit 23 can adopt a transmission mode of a screw and a nut or a rack and a gear. The zoom unit 22 is an internal zoom. The patient can actively input the desired picture size through the controller to realize the zooming in or out of the vision in front of the patient.

[0052] In the above embodiment, the internal zoom of the left and right image collectors 2 is performed synchronously with the same zoom multiple, so as to avoid the situation where one eye sees a small visual range and the other eye sees a large visual range, and to avoid the left and right eye images being unable to be processed and fused.

[0053] In a further embodiment, the near-eye display optical system 3 includes: a light splitting unit 31, a polarization conversion unit 32 and a reflection unit 33 which are coaxially arranged in sequence along the incident direction of the optical axis of the human eye 4, and a lens group unit 34 located on the optical axis of the micro-image display 5;

[0054] The lens group unit 34 is used to refract the image light emitted by the micro-image display 5; the splitter unit 31 is used to reflect the image light refracted by the lens group unit 34 to the reflection unit 33 and transmit the image light reflected by the reflection unit 33 to the human eye 4; the polarization conversion unit 32 is used to convert the image light into polarized light that can pass through the splitter unit 31.

[0055] Specifically, the image light emitted by the micro-image display 5 is first refracted and magnified by the lens group, and then emitted to the spectroscopic unit 31. At this time, the spectroscopic unit 31 cannot transmit the image light, and can only reflect the image light to the reflection unit 33. In this process, the image light reflected by the spectroscopic unit 31 will pass through the polarization conversion unit 32 and then reach the reflection unit 33. The reflection unit 33 reflects the light to the human eye 4. In this process, the image light passes through the polarization conversion unit 32 again. After two polarization conversions, the image light can pass through the spectroscopic unit 31 and enter the human eye 4. With the near-eye display optical system 3, the patient can see objects at close range.

[0056] In the above embodiment, the micro image display 5 is an organic electroluminescent device, and the micro image display 5 includes a display driving unit 23 , which is electrically connected to the image output unit 15 for receiving the fused image and transmitting it to the micro image display 5 for display.

[0057] In the above embodiment, the smart assisted vision glasses are also provided with a diopter adjustment device and a pupil distance adjustment device to adjust the diopter of each pair of glasses and the distance between the two eyes according to the patient's vision, so as to adapt to the vision conditions of different patients and bring better visual experience to the patients.

[0058] In a further embodiment, the light splitting unit 31 is a semi-transmissive and semi-reflective optical element; the angle between the semi-transmissive and semi-reflective optical element and the optical axis of the human eye 4 is 45°.

[0059] Part of the light reflected by the semi-transmissive and semi-reflective optical element, that is, the image light emitted by the micro-image display 5, is refracted and magnified by the lens group unit 34, and then reflected by the semi-transmissive and semi-reflective optical element to the reflective element, and then reflected by the reflective element to the human eye 4. In this process, the image light passes through the polarization conversion unit 32 twice, and after two polarization conversions, it can pass through the semi-transmissive and semi-reflective optical element and enter the human eye 4.

[0060] In a further embodiment, the reflection unit 33 is a reflection optical element; the reflection optical element includes an optical reflection surface, and the optical reflection surface is concave toward the viewing direction of the human eye 4 .

[0061] The reflective optical element is a lens with a reflective function, which is concave toward the human eye 4 in order to reflect the image light to the human eye 4 , thereby shortening the entire near-eye display optical system 3 .

[0062] In a further embodiment, the polarization conversion unit 32 is a polarization optical element; the polarization optical element is perpendicular to the optical axis of the human eye 4.

[0063] In a further embodiment, the lens assembly unit 34 is composed of three lenses, namely a first lens 341 , a second lens 342 and a third lens 343 which are arranged in sequence along the optical axis from the viewing side of the human eye 4 to the micro image display 5 side.

[0064] In a further embodiment, the optical surfaces of the first lens 341 and the third lens 343 facing the micro image display 5 are both concave toward the micro image display 5; the optical surfaces of the first lens 341 and the third lens 343 facing the observation side of the human eye 4 are both convex toward the human eye 4; the optical surface of the second lens 342 facing the micro image display 5 is convex toward the micro image display 5, and the optical surface of the second lens 342 facing the observation side of the human eye 4 is convex toward the human eye 4.

[0065] The more lenses the lens group unit 34 has, the higher the quality of the image viewed by the patient's eyes 4 will be, and the clearer it will be.

[0066] The optical surfaces of the first lens 341 and the third lens 343 close to the human eye 4 are convex toward the human eye 4, and the optical surfaces close to the micro image display 5 are concave toward the micro image display 5, which effectively reduces the overall size of the near-eye display optical system 3, improves the system image quality, corrects distortion, and improves the system's aberrations such as astigmatism and field curvature, which is beneficial for the near-eye display optical system 3 to achieve a high-resolution optical effect with full-frame uniform image quality. Example

[0067] Embodiment 2 of the present invention Figures 1 to 3 , Figure 5 As shown, there is provided a pair of intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects, comprising: left and right near-eye display optical systems 3 arranged corresponding to the left and right eyes, left and right image collectors 2 arranged corresponding to the left and right eyes, and an image processor 1; the image collector 2 is electrically connected to the image processor 1, and is used for algorithmically fusing the images respectively collected by the left and right image collectors 2; the near-eye display optical system 3 is electrically connected to the image processor 1, and is used for transmitting the fused image to the near-eye display optical system 3 for display.

[0068] The near-eye display optical system 3 includes: a light splitting unit 31, a polarization conversion unit 32 and a reflection unit 33 which are coaxially arranged in sequence along the incident direction of the optical axis of the human eye 4, and a lens group unit 34 located on the optical axis of the micro-image display 5;

[0069] The lens assembly unit 34 is used to refract the image light emitted by the micro-image display 5; the light splitting unit 31 is used to reflect the image light refracted by the lens assembly unit 34 to the reflection unit 33 and transmit the image light reflected by the reflection unit 33 to the human eye 4; the polarization conversion unit 32 is used to convert the image light into polarized light that can pass through the light splitting unit 31. The lens assembly unit 34 is composed of a piece of lens; the lens assembly unit 34 includes a first lens 341 arranged along the optical axis direction of the micro-image display 5; the first lens 341 is a double convex lens; the optical surface of the first lens 341 facing the micro-image display 5 is convex toward the micro-image display 5; the optical surface of the first lens 341 facing the observation side of the human eye 4 is convex toward the human eye 4.

[0070] The second embodiment uses one lens, and the image quality is slightly lower than that of the first embodiment. However, the second embodiment has a smaller number of lenses, so the overall weight is lighter.

[0071] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A pair of smart vision glasses for expanding the visual field of patients with visual field defects, characterized in that: include: Left and right near-eye display optical systems arranged corresponding to the left eye and the right eye, left and right image collectors arranged corresponding to the left eye and the right eye, and an image processor; The image processor is electrically connected to the image collector, and is used to perform algorithm fusion on the images respectively collected by the left and right image collectors; the near-eye display optical system is electrically connected to the image processor, and is used to transmit the fused image to the near-eye display optical system for display, so that the fused field of view is larger than the field of view collected by any one of the image collectors, and the enhancement effect of binocular vision superposition of human eyes is better than monocular vision to form stereoscopic vision; The image processor comprises: An image input unit, used for receiving a left image and a right image respectively input by a left image collector and a right image collector; An image recognition unit, used to recognize the left image and the right image input by the image input unit, so as to recognize whether the main contents of the left image and the right image are text content or non-text content; An image processing unit, used for processing the left image and the right image recognized by the image recognition unit; An image fusion unit, used for fusing the left image and the right image processed by the image processing unit to form a fused image with stereoscopic vision; An image output unit, used for outputting the fused image to the left and right near-eye display optical systems for display; The image processing unit synchronously processes each frame of the image collected by the left image collector and the right image collector; When it is recognized that the main contents of the current left image and the right image are text contents, the image recognition unit will send a reading signal to the image processing unit, and the image processing unit will confirm the focus of the left image and the right image, and perform the same processing on the left image and the right image as follows, specifically, the focus is placed on the text, and the background other than the text is blurred, and then the image fusion unit fuses the left image and the right image that have been processed in the same way to form a fused image of stereoscopic vision; When it is recognized that the main contents of the current left image and right image are non-text content, due to the different shooting angles of the left and right image collectors, the image processing unit cuts the left image and the right image to obtain the overlapping part of the left image and the right image and the non-overlapping part of the left image and the right image; wherein, for some objects existing in the overlapping part of the left image and the right image, due to the different visual angles of the left eye and the right eye, the image processing unit will perform three-dimensional modeling according to the shape of the part of the object in the left image and the right image to obtain a three-dimensional model, wherein when the left image and the right image are fused, the part of the overlapping part of the left image and the right image except the part of the object is retained; the three-dimensional model, the non-overlapping part of the left image and the right image, and the retained part of the overlapping part of the left image and the right image are sent together to the image fusion unit, and the image fusion unit fuses them to form a fused image with stereoscopic vision.

2. The smart vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 1, characterized in that: The image collector comprises: A sensor unit for recording and transmitting images; A zoom unit for changing the shooting range; A driving unit, used for adjusting the focal length of the zoom unit; The zoom unit is drivingly connected to the driving unit, and the sensor unit is electrically connected to the image input unit.

3. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 1, characterized in that: The near-eye display optical system comprises: a light splitting unit, a polarization conversion unit and a reflection unit which are coaxially arranged in sequence along the incident direction of the human eye optical axis, and a lens group unit located on the optical axis of the micro-image display; The lens group unit is used to refract the image light emitted by the micro-image display; the splitter unit is used to reflect the image light refracted by the lens group unit onto the reflection unit and transmit the image light reflected by the reflection unit to the human eye; the polarization conversion unit is used to convert the image light into polarized light that can pass through the splitter unit.

4. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 3, characterized in that: The light splitting unit is a semi-transparent and semi-reflective optical element; the angle between the semi-transparent and semi-reflective optical element and the optical axis of the human eye is 45°.

5. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 3, characterized in that: The reflection unit is a reflection optical element; the reflection optical element comprises an optical reflection surface, and the optical reflection surface is concave toward the viewing direction of human eyes.

6. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 3, characterized in that: The polarization conversion unit is a polarization optical element; the polarization optical element is perpendicular to the optical axis of the human eye.

7. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 3, characterized in that: The lens group unit is composed of a piece of lens; the lens group unit includes a first lens arranged along the optical axis direction of the micro image display; the first lens is a double convex lens; the optical surface of the first lens facing the micro image display is convex toward the micro image display; the optical surface of the first lens facing the human eye observation side is convex toward the human eye.

8. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 3, characterized in that: The lens group unit is composed of three lenses, namely a first lens, a second lens and a third lens, which are arranged in sequence along the optical axis direction from the human eye viewing side to the micro-image display side.

9. The intelligent vision-aiding glasses for expanding the visual field of patients with visual field defects according to claim 8, characterized in that: The optical surfaces of the first lens and the third lens facing the micro image display are both concave toward the micro image display; the optical surfaces of the first lens and the third lens facing the human eye observation side are both convex toward the human eye; the optical surface of the second lens facing the micro image display is convex toward the micro image display, and the optical surface of the second lens facing the human eye observation side is convex toward the human eye.

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