Cascaded artificial vision substitution compensation mechanism and vision auxiliary enhancement equipment

Abstract

The invention provides a cascade artificial vision substitution compensation mechanism and vision auxiliary enhancement equipment, and relates to the technical field of artificial vision enhancement, and the mechanism comprises an equivalent convex lens imaging system and a photoelectric imaging system. The equivalent convex lens imaging system is an ultra-short-focus high-convergence equivalent convex lens imaging system formed by one or a series of optical lenses; the photoelectric imaging system captures external image information in real time through the image acquisition equipment, removes depth-of-field information, generates a focus real image for compensating visual adaptation after focal length optimization, and outputs the focus real image to the display equipment to be displayed in front of the visual field of a user; the equivalent convex lens imaging system serves as a substitution mechanism and is located at the near end of a visual axis, the photoelectric imaging system serves as a compensation imaging mechanism and is located at the far end, and the substitution mechanism and the compensation imaging mechanism are sequentially arranged on a light path in a cascading mode from the near end to the far end to form a cascading structure for compensating visual defects. Visual replacement and compensation are achieved at the near end and the far end respectively, and the visual ability of an amblyopia patient is improved.

Description

Technical Field

[0001] The present invention relates to the field of artificial vision enhancement technology, and in particular to a cascaded artificial vision replacement compensation mechanism for replacing and compensating human visual functions, and a visual assistance enhancement device made based on the mechanism. Background Art

[0002] With the development of modern medicine, many visual diseases such as cataracts, glaucoma, macular degeneration, optic nerve diseases, craniocerebral trauma, etc. may lead to damage to the visual pathway, especially the damage to the ciliary muscle function that adjusts the visual focus, making patients face problems such as difficulty in adapting to near and far vision, depth of field imbalance, and reduced color and contrast sensitivity. Traditional optical correction methods such as glasses and contact lenses are difficult to effectively solve these problems, especially when the optic nerve or ciliary muscle is severely damaged.

[0003] Most of the existing amblyopia correction methods rely on visual magnification, but ignore the compensation of visual adaptation functions (such as near-far adaptation, light adaptation, etc.). Therefore, there is an urgent need for a new type of artificial visual replacement and compensation mechanism that can effectively improve the visual perception ability of amblyopia patients, especially for those who cannot restore their vision through traditional correction methods. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a cascaded artificial vision substitution compensation mechanism and visual assistance enhancement equipment, which aims to significantly improve the visual ability of patients with severe amblyopia by replacing and compensating oculomotor nerve regulation, removing depth of field information, improving visual adaptation, etc. The mechanism forms a cascade structure through two core modules, the equivalent convex lens imaging system and the optoelectronic imaging system, respectively, to achieve visual substitution and compensation at the near end and the far end, thereby effectively expanding the patient's visual adaptation range and restoring his perception of the real world.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] Based on the above objectives, in a first aspect, the present invention provides a cascaded artificial vision substitution compensation mechanism, comprising:

[0007] The equivalent convex lens imaging system is an ultra-short-focus high-convergence equivalent convex lens imaging system composed of one or a series of optical lenses, which is used to present the virtual image of the object at a fixed distance to the visual range at the far end of the user's visual axis, and the focal length is set to a fixed visual range, which is used to replace and release the adjustment of the oculomotor nerve to the ciliary muscle, and fully compensate for or even replace the convergence of the lens on the light entering the visual field;

[0008] The optoelectronic imaging system uses an image acquisition device to capture external image information in real time, removes depth of field information to generate a focused real image that compensates for visual adaptation after optimizing the focal length, and outputs the processed focused real image to a display device to present it in front of the user's field of vision, compensating for visual defects caused by optic nerve damage;

[0009] The equivalent convex lens imaging system is located at the proximal end of the visual axis as a replacement mechanism, and the photoelectric imaging system is located at the distal end as a compensation imaging mechanism. The replacement mechanism and the compensation imaging mechanism are arranged in cascade sequence on the optical path, arranged in sequence from the proximal end to the distal end, to form a cascade structure that compensates for visual defects.

[0010] As a further solution of the present invention, the optical lens of the equivalent convex lens imaging system is used for focal length correction, and the focal length f of the optical lens is not greater than 30 mm. The equivalent convex lens imaging system presents images of near and far objects at a fixed visual distance by fixing the focal length.

[0011] As a further solution of the present invention, the optical path of the optical lens in the equivalent convex lens imaging system is configured as a minimum convex lens model through a Fresnel lens and a folded optical path, and the equivalent convex lens imaging system thus constructed provides a magnification of no less than eight times.

[0012] As a further solution of the present invention, the equivalent convex lens imaging system presents the images of near and far objects at an optometric equivalent visual infinity distance range of 600 cm by fixing the focal length, thereby avoiding blurred vision and visual adaptation problems caused by impaired vision.

[0013] As a further solution of the present invention, the photoelectric imaging system also includes an autofocus component for automatically focusing and adjusting image clarity according to changes in distance. The photoelectric imaging system including the autofocus component collects surrounding external images through an image acquisition device and presents a real image on a display device at least 12 mm in front of the user's field of view.

[0014] As a further solution of the present invention, the display device is a display medium with a flat and fixed-distance output arranged in front of the user's field of vision.

[0015] As a further solution of the present invention, in the cascade structure formed by the equivalent convex lens imaging system and the photoelectric imaging system, the lens imaging formula when the optical lens is imaging is:

[0016]

[0017] In the formula, f is the focal length of the lens, u is the object distance, and ν is the image distance, where the image distance ν is n times the focal length f, that is:

[0018] ν=-n·f

[0019] After substituting into the lens imaging formula, we get:

[0020]

[0021] The left side of the equation Simplifying the right side, we get the relationship between object distance u and focal length f:

[0022]

[0023] therefore:

[0024]

[0025] Among them, the object distance u is positively correlated with the magnification coefficient n and the focal length f. When the magnification coefficient n increases, the difference between the object distance u and the focal length f decreases, which is manifested in the cascade structure as the observer actually experiencing the significant characteristic of the object being presented to the far end of the visual axis.

[0026] As a further solution of the present invention, a correction coefficient m is also introduced into the cascade structure formed by the equivalent convex lens imaging system and the photoelectric imaging system. The correction coefficient m represents the influence of the lens degradation on the external optical system. The original focal length is adjusted according to the correction coefficient m. When the focal length f of the equivalent convex lens imaging system is 15 mm, the typical value of the multiplication coefficient is 400, and the virtual image distance v presented thereby is 600 cm. The value range of the correction coefficient m is a positive real number not greater than 1, wherein the corrected focal length f m Defined as:

[0027] f m =m·f

[0028] Where f is the focal length of the original external optical system, m is the correction factor, which describes the effect of the lens on the focal length of the external optical system. The corrected focal length f m is the corrected focal length, reflecting the effect of the residual lens on the convergence of light;

[0029] After introducing the correction coefficient m, the corrected imaging formula is:

[0030]

[0031] f m =m·f Substituting into the formula, we get:

[0032]

[0033] This shows that the corrected focal length affects the relationship between the object distance u and the image distance v;

[0034] The corrected relationship between object distance and focal length is:

[0035]

[0036] It shows that the object distance u is linearly related to the correction coefficient m, that is, the correction coefficient m will affect the size of the object distance. As the correction coefficient increases, the object distance u increases.

[0037] As a further solution of the present invention, the optoelectronic imaging system is used to perform real-time image recognition on the collected images, and display the image recognition results using information carriers including text, voice, audio prompts, and graphic prompts, and use natural language processing mechanisms including generative models based on transformer architecture to conduct continuous human-computer interaction with the user.

[0038] In a second aspect, the present invention provides a visual assistance enhancement device, including the cascaded artificial vision substitution compensation mechanism, suitable for patients with ophthalmic diseases, people with visual degeneration or patients with optic nerve damage, and used to provide a visual restoration solution for near and far adaptation, light adaptation, color adaptation and contrast adaptation. The visual assistance enhancement device includes:

[0039] Monocular display glasses: suitable for users with low vision to help magnify and enhance images;

[0040] Handheld devices: can be carried flexibly and enhance the user's dynamic visual ability;

[0041] Glasses-type handheld device is a combination of glasses and handheld devices in which the equivalent convex lens imaging system and the photoelectric imaging system are separated. The equivalent convex lens imaging system and the photoelectric imaging system in the handheld device are separated, wherein the photoelectric imaging system remains in a handheld state, and the equivalent convex lens imaging system is in the form of glasses. After separation, the distance between the two systems is not a fixed value, but is presented on the retina of the human eye as the user's hand-holding position changes;

[0042] Head-mounted artificial vision device: implemented in the form of head-mounted glasses, suitable for long-term wear, providing stable visual compensation and replacement; or

[0043] Audio and video output devices: Combined with audio output devices, interact with users through video output devices, and enhance the human-computer interaction experience through expanded visual perception capabilities.

[0044] In a third aspect, the present invention also provides a monocular fixed-distance output visual assistance enhancement device, including the cascaded artificial vision substitution compensation mechanism, and the monocular fixed-distance output visual assistance enhancement device is used to form a visual enhancement solution for non-visually impaired users.

[0045] The cascaded artificial visual substitution compensation mechanism and visual assistance enhancement device are suitable for people with low vision, especially those with visual dysfunction caused by cataracts, glaucoma, macular degeneration, optic nerve damage, etc. These patients are usually unable to restore normal vision through traditional glasses or other optical correction methods. The device is particularly suitable for patients with low vision. It improves the user's visual perception of the real world and various electronic devices (such as flat-panel displays) by "enhancing visual perception" rather than simply magnifying the image.

[0046] Compared with the prior art, the cascaded artificial vision replacement compensation mechanism and visual assistance enhancement device proposed in the present invention can effectively improve the visual function of the amblyopic group, especially the patients with optic nerve damage, ophthalmic diseases and vision degeneration, and has the following beneficial effects:

[0047] 1. By adopting a cascaded artificial vision replacement compensation mechanism, visual defects can be effectively compensated and normal visual perception can be restored. The present invention can effectively replace and compensate for visual defects caused by optic nerve damage or lens degeneration. The combination of the equivalent convex lens imaging system and the photoelectric imaging system can not only magnify the image of the object, but also compensate for visual adaptation problems through real-time image acquisition and optimized focal length, helping amblyopic users to restore clear visual perception. Especially for patients with cataracts, glaucoma, macular degeneration, etc., fixed-focus magnification and focus adjustment can effectively overcome visual problems that cannot be corrected by traditional glasses.

[0048] 2. The design of the present invention allows the focal length and compensation mechanism to be flexibly adjusted according to the user's vision condition and needs, providing a personalized vision compensation solution. By introducing a correction coefficient, the focal length can be adjusted according to the degree of lens degeneration, thereby customizing a personalized vision recovery solution. Whether it is a patient with vision degeneration or a specific visual impairment caused by an eye disease, the user can obtain effective visual compensation according to their specific needs.

[0049] 3. The equivalent convex lens imaging system of the present invention presents the images of near and far objects at a fixed visual distance by fixing the focal length, especially within the range of the optometric equivalent visual infinity distance beyond 600 cm, which solves the problem of visual distance adaptation and avoids blurred vision. This design effectively solves the problems of blurred vision and difficulty in adjusting the focal length due to vision problems. Amblyopic users usually have visual impairments that make it difficult to adapt to objects at different distances. The compensation mechanism of the present invention can ensure that users obtain clear images at a stable visual distance, significantly reducing the burden of visual adaptation.

[0050] 4. The auto-focus components in the optoelectronic imaging system of the present invention can automatically adjust the focal length and image clarity according to the change of the object distance, ensuring that users can obtain clear views in different environments, enhancing image clarity and dynamic visual ability. This function is particularly important for the enhancement of dynamic visual ability, and can help amblyopic patients accurately identify objects and environments in fast-moving scenes, improving their daily living ability.

[0051] 5. The present invention is not only suitable for visual compensation in fixed scenes, but also can dynamically adjust its compensation effect in complex environments (such as light changes, visual requirements of near and far objects, etc.). For example, through the autofocus function, the system can automatically adjust the focal length to adapt to the light changes and object positions in the user's surrounding environment to ensure the best visual experience. The visual aid enhancement equipment of the present invention (such as head-mounted glasses, handheld devices, etc.) reduces the common visual fatigue problems in traditional visual aids by optimizing optical paths, fixed focal lengths and personalized adjustments. The device can effectively reduce the visual burden caused by wearing discomfort through stable visual output and comfortable wearing design, and is particularly suitable for long-term use.

[0052] 6. The present invention uses a cascade structure of an equivalent convex lens imaging system and an optoelectronic imaging system to enable users to enhance their stereoscopic and depth perception of the surrounding environment, as well as their stereoscopic and spatial perception when wearing the device. Especially for patients with optic nerve damage, who usually face more serious spatial perception disorders, the cascade system can help users restore stereoscopic vision and improve their perception of the distance of objects by optimizing the imaging principle. The system uses a cascade optical design to ensure that visual compensation remains stable during long-term wear and use. Compared with traditional glasses or magnifying glasses, the device in the present invention can effectively avoid focal drift, visual fatigue and other problems through precise optical design and compensation mechanism, ensuring that the visual effect remains unchanged under long-term use.

[0053] 7. The visual assistance enhancement device of the present invention has a variety of device forms to meet the needs of different scenarios, including head-mounted artificial vision devices, handheld devices, monocular display glasses, and audio and video output devices, etc., which can be flexibly selected according to the actual needs and usage scenarios of users. Head-mounted devices are suitable for long-term wear and provide stable visual compensation; handheld devices are convenient for users to use in dynamic environments; monocular display glasses are suitable for rapid magnification and enhancement of images; audio and video output devices enhance reality perception and human-computer interaction functions. The visual assistance enhancement device of the present invention can greatly improve the quality of life of the visually impaired group and help them better adapt to and handle daily tasks in various scenarios. By enhancing visual perception, patients can better carry out activities such as reading, socializing, and going out, which not only improves their ability to live independently, but also enhances their self-confidence and quality of life.

[0054] In summary, the cascaded artificial vision substitution compensation mechanism and visual assistance enhancement device provided by the present invention, by introducing a cascaded artificial vision substitution compensation mechanism, combined with an equivalent convex lens imaging system and a photoelectric imaging system, can effectively compensate for visual defects caused by optic nerve damage, ciliary muscle failure or other eye diseases, restore or expand the user's visual adaptation ability, and significantly improve visual impairment caused by ophthalmic diseases or optic nerve damage. Through the cascade design of a high-power fixed-focus magnification mechanism and a photoelectric imaging mechanism, the present invention not only improves the ability to adapt to distance, but also can compensate for visual problems such as light adaptation, color adaptation and contrast adaptation, thereby significantly improving the visual perception ability of amblyopic patients. The system is suitable for patients with various ophthalmic diseases, especially those with amblyopia who cannot be corrected by traditional optical means. Through this technology, the quality of life of patients has been significantly improved.

[0055] These and other aspects of the present application will be more concise and understandable in the following description of the embodiments. It should be understood that the above general description and the following detailed description are only exemplary and explanatory and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the exemplary embodiments or related technical descriptions. The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0057] Figure 1 The figure is a schematic diagram of a cascaded artificial vision substitution compensation mechanism according to an embodiment of the present invention.

[0058] Figure 2 A schematic diagram of a cascade structure in a cascaded artificial vision substitution compensation mechanism according to an embodiment of the present invention.

[0059] Figure 3 This is a structural diagram of a head-mounted artificial vision device in a visual assistance enhancement device according to an embodiment of the present invention.

[0060] Figure 4 The present invention is a structural diagram of monocular display glasses in a visual aid enhancement device according to an embodiment of the present invention.

[0061] Figure 5 The present invention is a structural diagram of a handheld device in a visual assistance enhancement device according to an embodiment of the present invention.

[0062] Figure 6 This is a structural diagram of an ear-hook device in a visual aid enhancement device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0063] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0064] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0065] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are intended to distinguish two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, other steps or units inherent to a process, method, system, product or device that includes a series of steps or units.

[0066] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0067] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0068] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0069] Most of the existing amblyopia correction methods rely on visual magnification, but ignore the problem of compensation for visual adaptation functions (such as near and far adaptation, light adaptation, etc.). The present invention proposes a cascaded artificial vision replacement compensation mechanism and visual auxiliary enhancement equipment, which are mainly used to improve and replace visual defects caused by eye diseases, trauma or nerve damage, especially for the visual recovery of patients with severe amblyopia. The mechanism works in cascade through two core modules: an equivalent convex lens imaging system and a photoelectric imaging system, which compensates for the failure of the oculomotor nerve to adjust the ciliary muscle from the proximal end to the distal end, and restores or expands the visual adaptation ability. Its innovation lies in combining high-power magnification, depth of field compensation, near and far adaptation adjustment, light adaptation, color adaptation, contrast adaptation and other functions, and effectively improving visual perception ability and compensating for vision defects through technical means.

[0070] See also Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a cascaded artificial vision replacement compensation mechanism, including an equivalent convex lens imaging system 1 and an optoelectronic imaging system 2. The equivalent convex lens imaging system 1 is an ultra-short focal and high convergence equivalent convex lens imaging system composed of one or a series of optical lenses, which presents the virtual image of the object at a fixed distance to the visual range at the far end of the user's visual axis, and the focal length is set to a fixed viewing distance range, which is used to replace and release the regulation of the oculomotor nerve on the ciliary muscle, and fully compensate for or even replace the convergence of the lens on the light entering the field of view. The optoelectronic imaging system 2 captures external image information in real time through an image acquisition device, removes the depth of field information to generate a focused real image that compensates for visual adaptation after optimizing the focal length, and outputs the processed focused real image to the display device 4 to present it in front of the user's field of view, compensating for the visual defects caused by optic nerve damage.

[0071] Among them, the equivalent convex lens imaging system 1 is located at the proximal end of the visual axis as a replacement mechanism, and the photoelectric imaging system 2 is located at the distal end as a compensation imaging mechanism. The replacement mechanism and the compensation imaging mechanism are arranged in cascade sequence on the optical path, arranged in sequence from the proximal end to the distal end, to form a cascade structure for compensating visual defects.

[0072] The present invention adopts a cascaded artificial vision replacement compensation mechanism to effectively compensate for visual defects and restore normal visual perception. It can effectively replace and compensate for visual defects caused by optic nerve damage or lens degeneration. The combination of the equivalent convex lens imaging system 1 and the photoelectric imaging system 2 can not only magnify the image of the object, but also compensate for visual adaptation problems through real-time image acquisition and optimized focal length, helping amblyopic users to restore clear visual perception. Especially for patients with cataracts, glaucoma, macular degeneration, etc., fixed-focus magnification and focus adjustment can effectively overcome visual problems that cannot be corrected by traditional glasses.

[0073] In this embodiment, the optical lens 3 of the equivalent convex lens imaging system 1 is used for focal length correction, and the focal length f of the optical lens 3 is not greater than 30 mm. The equivalent convex lens imaging system 1 presents the images of distant and near objects at a fixed visual distance by fixing the focal length.

[0074] Among them, the optical path of the optical lens 3 in the equivalent convex lens imaging system 1 is configured as a minimum convex lens model through a Fresnel lens and a folded optical path. The equivalent convex lens imaging system 1 thus constructed provides a magnification of no less than eight times. Optionally, the optical lens 3 is a convex lens.

[0075] In this embodiment, the equivalent convex lens imaging system 1 presents the images of near and far objects at an optometric equivalent visual infinity distance range of 600 cm by fixing the focal length, thereby avoiding blurred vision and visual adaptation problems caused by impaired vision.

[0076] The equivalent convex lens imaging system 1 of the present invention presents the images of near and far objects at a fixed visual distance by fixing the focal length, especially within the range of the optometric equivalent visual infinity distance beyond 600 cm, thereby solving the problem of visual distance adaptation and avoiding blurred vision. This design effectively solves the problems of blurred vision and difficulty in adjusting the focal length due to vision problems. Amblyopic users usually have visual impairments that make it difficult to adapt to objects at different distances. The compensation mechanism of the present invention can ensure that users obtain clear images at a stable visual distance, significantly reducing the burden of visual adaptation.

[0077] In this embodiment, the photoelectric imaging system 2 also includes an autofocus component for automatically focusing and adjusting the image clarity according to the distance change. The photoelectric imaging system 2 including the autofocus component collects the surrounding external images through the image acquisition device and presents the real image on the display device 4 at least 12 mm in front of the user's field of view.

[0078] The auto-focus components in the optoelectronic imaging system 2 of the present invention can automatically adjust the focal length and image clarity according to the change in the distance of the object, ensuring that the user can obtain a clear view in different environments, enhancing image clarity and dynamic visual ability. This function is particularly important for enhancing dynamic visual ability, and can help amblyopic patients accurately identify objects and environments in fast-moving scenes, thereby improving their daily living ability.

[0079] In some embodiments, the optoelectronic imaging system 2 is also used to perform real-time image recognition on the captured images, and display the image recognition results using information carriers including text, voice, audio prompts, and graphic prompts, and use natural language processing mechanisms including generative models based on transformer architecture to conduct continuous human-computer interaction with the user.

[0080] The display device 4 is a flat, fixed-distance output display medium arranged in front of the user's field of vision.

[0081] In this embodiment, in the cascade structure formed by the equivalent convex lens imaging system 1 and the optoelectronic imaging system 2, the lens imaging formula when the optical lens 3 is imaging is:

[0082]

[0083] In the formula, f is the focal length of the lens, u is the object distance, and v is the image distance, where the image distance v is n times the focal length f, that is:

[0084] v=-n·f

[0085] After substituting into the lens imaging formula, we get:

[0086]

[0087] The left side of the equation Simplifying the right side, we get the relationship between object distance u and focal length f:

[0088]

[0089] therefore:

[0090]

[0091] Among them, the object distance u is positively correlated with the magnification coefficient n and the focal length f. When the magnification coefficient n increases, the difference between the object distance u and the focal length f decreases, which is manifested in the cascade structure as the observer actually experiencing the significant characteristic of the object being presented to the far end of the visual axis.

[0092] The correction coefficient m is also introduced into the cascade structure formed by the equivalent convex lens imaging system 1 and the photoelectric imaging system 2. The correction coefficient m represents the influence of the lens degradation on the external optical system. The original focal length is adjusted according to the correction coefficient m. The corrected focal length f m Defined as:

[0093] f m =m·f

[0094] Where f is the focal length of the original external optical system, m is the correction factor, which describes the effect of the lens on the focal length of the external optical system. The corrected focal length f m is the corrected focal length, reflecting the effect of the residual lens on the convergence of light;

[0095] After introducing the correction coefficient m, the corrected imaging formula is:

[0096]

[0097] fm =m·f Substituting into the formula, we get:

[0098]

[0099] This shows that the corrected focal length affects the relationship between the object distance u and the image distance v;

[0100] The corrected relationship between object distance and focal length is:

[0101]

[0102] It shows that the object distance u is linearly related to the correction coefficient m, that is, the correction coefficient m will affect the size of the object distance. As the correction coefficient increases, the object distance u increases.

[0103] The design of the present invention allows the focal length and compensation mechanism to be flexibly adjusted according to the user's vision condition and needs, providing a personalized vision compensation solution. By introducing the correction coefficient m, the focal length can be adjusted according to the degree of lens degeneration, thereby customizing a personalized vision restoration solution. Whether it is a patient with vision degeneration or a specific visual impairment caused by an eye disease, the user can obtain effective vision compensation according to their specific needs.

[0104] In some embodiments, see Figures 3 to 5 As shown, an embodiment of the present invention provides a visual assistance enhancement device, including the cascaded artificial vision substitution compensation mechanism, which is suitable for patients with ophthalmic diseases, people with visual degeneration or patients with optic nerve damage, and is used to provide a visual restoration solution for near and far adaptation, light adaptation, color adaptation and contrast adaptation. The visual assistance enhancement device includes:

[0105] Monocular display glasses: Monocular installation using head-mounted glasses 5, suitable for low-vision users to help magnify and enhance images;

[0106] Handheld devices: can be carried flexibly and enhance the user's dynamic visual ability;

[0107] Glasses-type handheld device is a combination of glasses and handheld devices in which the equivalent convex lens imaging system and the photoelectric imaging system are separated. The equivalent convex lens imaging system and the photoelectric imaging system in the handheld device are separated, wherein the photoelectric imaging system remains in a handheld state, and the equivalent convex lens imaging system is in the form of glasses. After separation, the distance between the two systems is not a fixed value, but is presented on the retina of the human eye as the user's hand-holding position changes;

[0108] Head-mounted artificial vision device: implemented in the form of head-mounted glasses 5, suitable for long-term wear, providing stable visual compensation and replacement; or

[0109] Audio and video output devices: Combined with audio output devices, interact with users through video output devices, and enhance the human-computer interaction experience through expanded visual perception capabilities.

[0110] In some embodiments, the present invention also provides a monocular fixed-distance output visual assistance enhancement device, including the cascaded artificial vision substitution compensation mechanism, and the monocular fixed-distance output visual assistance enhancement device is used to form a visual enhancement solution for non-visually impaired users.

[0111] See also Figure 6 As shown, an embodiment of the present invention provides an auxiliary device which also includes an image acquisition device 6 and an ear-hook device 7. The auxiliary device is a group of devices for providing non-visual extended compensation information. The image acquired by the image acquisition device 6 independently provides non-visual prompt information through image recognition, and is combined with the ear-hook device 7 or other devices with a display to provide compensatory visual information from different perspectives. Among them, the ear-hook device 7 in the auxiliary device is placed behind the human ear to provide audio signals as a supplement to the visual information. The image acquisition device 6 in the auxiliary device is simultaneously or selectively arranged near the supratragic notch and the intertragic notch to facilitate the fixation and acquisition of visual information. The supratragic notch refers to the recessed area between the upper edge of the tragus (the front part of the auricle) and the helix (the back part of the auricle). The supratragic notch can be regarded as a part of the auricle anatomically. It is an important consideration in the design of the headphone arm to facilitate the fixation of headphones or other auxiliary devices; the intertragic notch, also known as the intertragic notch, is a depression below the tragus, a physiological depression between the two sides of the tragus, also known as the "Interatragic notch", is a feature below the tragus and is where the headphone arm protrudes. This position is also an important consideration in the design of the auxiliary device to facilitate the fixation and acquisition of visual information. In addition, the image acquisition device 6 can also be set to a position between the lower jaw and the chest. The image acquisition device 6 arranged at this position can be used as a replacement for the handheld device. Alternatively, the display device can be omitted and the image acquisition device 6 can be arranged separately to provide visual compensation in combination with the ear-hook device 7.

[0112] The present invention is not only suitable for visual compensation in fixed scenes, but also can dynamically adjust its compensation effect in complex environments (such as light changes, visual requirements of near and far objects, etc.). For example, through the autofocus function, the system can automatically adjust the focal length to adapt to the light changes and object positions in the user's surrounding environment to ensure the best visual experience. The visual aid enhancement device of the present invention (such as head-mounted glasses 5, handheld devices, etc.) reduces the common visual fatigue problems in traditional visual aids by optimizing optical paths, fixing focal lengths, and personalized adjustments. The device can effectively reduce the visual burden caused by wearing discomfort through stable visual output and comfortable wearing design, and is particularly suitable for long-term use.

[0113] The cascaded artificial visual substitution compensation mechanism and visual assistance enhancement device are suitable for people with low vision, especially those with visual dysfunction caused by cataracts, glaucoma, macular degeneration, optic nerve damage, etc. These patients are usually unable to restore normal vision through traditional glasses or other optical correction methods. The device is particularly suitable for patients with low vision. It improves the user's visual perception of the real world and various electronic devices (such as flat-panel displays) by "enhancing visual perception" rather than simply magnifying the image.

[0114] The present invention uses a cascade structure of an equivalent convex lens imaging system 1 and an optoelectronic imaging system 2 to enable users to enhance their stereoscopic sense and depth perception of the surrounding environment, as well as their stereoscopic sense and spatial perception when wearing the device. Especially for patients with optic nerve damage, who usually face more serious spatial perception disorders, the cascade system can help users restore stereoscopic vision and improve their perception of the distance of objects by optimizing the imaging principle. The system uses a cascade optical design to ensure that visual compensation remains stable during long-term wear and use. Compared with traditional glasses or magnifying glasses, the device in the present invention can effectively avoid problems such as focal drift and visual fatigue through precise optical design and compensation mechanism, thereby ensuring that the visual effect remains unchanged under long-term use.

[0115] The visual assistance enhancement device of the present invention has a variety of device forms to meet the needs of different scenarios, including head-mounted artificial vision devices, handheld devices, monocular display glasses, and audio and video output devices, etc., which can be flexibly selected according to the actual needs and usage scenarios of users. Head-mounted devices are suitable for long-term wear and provide stable visual compensation; handheld devices are convenient for users to use in dynamic environments; monocular display glasses are suitable for rapid magnification and enhancement of images; audio and video output devices enhance reality perception and human-computer interaction functions. The visual assistance enhancement device of the present invention can greatly improve the quality of life of the visually impaired group and help them better adapt to and handle daily tasks in various scenarios. By enhancing visual perception, patients can better carry out activities such as reading, socializing, and going out, which not only improves their ability to live independently, but also enhances their self-confidence and quality of life.

[0116] In summary, the cascaded artificial vision substitution compensation mechanism and visual assistance enhancement device provided by the present invention, by introducing a cascaded artificial vision substitution compensation mechanism, combined with an equivalent convex lens imaging system 1 and a photoelectric imaging system 2, can effectively compensate for visual defects caused by optic nerve damage, ciliary muscle failure or other eye diseases, restore or expand the user's visual adaptation ability, and significantly improve visual impairment caused by ophthalmic diseases or optic nerve damage. Through the cascade design of a high-power fixed-focus magnification mechanism and a photoelectric imaging mechanism, the present invention not only improves the ability to adapt to distance, but also can compensate for visual problems such as light adaptation, color adaptation and contrast adaptation, thereby significantly improving the visual perception ability of amblyopic patients. The system is suitable for patients with various ophthalmic diseases, especially those with amblyopia who cannot be corrected by traditional optical means. Through this technology, the quality of life of patients has been significantly improved.

[0117] The above are exemplary embodiments disclosed in the present invention, but it should be noted that various changes and modifications may be made without departing from the scope disclosed in the embodiments of the present invention as defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0118] It should be understood that, as used herein, the singular form "a" or "an" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the items listed in association. The serial numbers of the embodiments disclosed in the above embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0119] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A cascaded artificial vision substitution compensation mechanism, characterized in that: include: The equivalent convex lens imaging system is an ultra-short-focus high-convergence equivalent convex lens imaging system composed of one or a series of optical lenses, which is used to present the virtual image of the object at a fixed distance to the visual range at the far end of the user's visual axis, and the focal length is set to a fixed visual range, which is used to replace and release the adjustment of the oculomotor nerve to the ciliary muscle, and fully compensate for or even replace the convergence of the lens on the light entering the visual field; The optoelectronic imaging system uses an image acquisition device to capture external image information in real time, removes depth of field information to generate a focused real image that compensates for visual adaptation after optimizing the focal length, and outputs the processed focused real image to a display device to present it in front of the user's field of vision, compensating for visual defects caused by optic nerve damage; The equivalent convex lens imaging system is located at the proximal end of the visual axis as a replacement mechanism, and the photoelectric imaging system is located at the distal end as a compensation imaging mechanism. The replacement mechanism and the compensation imaging mechanism are arranged in cascade sequence on the optical path, arranged in sequence from the proximal end to the distal end, to form a cascade structure that compensates for visual defects.

2. The cascaded artificial vision substitution compensation mechanism according to claim 1, characterized in that: The optical lens of the equivalent convex lens imaging system is used for focal length correction, and the focal length f of the optical lens is not greater than 30 mm. The equivalent convex lens imaging system presents images of near and far objects at a fixed visual distance by fixing the focal length.

3. The cascaded artificial vision substitution compensation mechanism according to claim 2, characterized in that: The optical path of the optical lens in the equivalent convex lens imaging system is configured as a minimum convex lens model through a Fresnel lens and a folded optical path, and the equivalent convex lens imaging system thus constructed provides a magnification of no less than eight times.

4. The cascaded artificial vision substitution compensation mechanism according to claim 3, characterized in that: The equivalent convex lens imaging system presents images of near and far objects in an optometric equivalent visual infinity distance range of 600 cm by fixing the focal length.

5. The cascaded artificial vision substitution compensation mechanism according to claim 1, characterized in that: The photoelectric imaging system also includes an autofocus component for automatically focusing and adjusting image clarity according to distance changes. The photoelectric imaging system including the autofocus component collects surrounding external images through an image acquisition device and presents a real image on a display device at least 12 mm in front of the user's field of view; the display device is a display medium with a flat fixed-distance output arranged in front of the user's field of view.

6. The cascaded artificial vision substitution compensation mechanism according to claim 1, characterized in that: In the cascade structure formed by the equivalent convex lens imaging system and the photoelectric imaging system, the lens imaging formula when the optical lens is imaging is: In the formula, f is the focal length of the lens, u is the object distance, and v is the image distance, where the image distance v is n times the focal length f, that is: v=-n·f After substituting into the lens imaging formula, we get: The left side of the equation Simplifying the right side, we get the relationship between object distance u and focal length f: therefore: Among them, the relationship between the object distance u, the magnification coefficient n and the focal length f is positively correlated. When the magnification coefficient n increases, the difference between the object distance u and the focal length f decreases.

7. The cascaded artificial vision substitution compensation mechanism according to claim 6, characterized in that: The cascade structure formed by the equivalent convex lens imaging system and the photoelectric imaging system also introduces a correction coefficient m, which represents the influence of lens degradation on the external optical system. The original focal length is adjusted according to the correction coefficient m, wherein the corrected focal length f m Defined as: f m =m·f Where f is the focal length of the original external optical system, m is the correction factor, which describes the effect of the lens on the focal length of the external optical system. The corrected focal length f m is the corrected focal length, reflecting the effect of the residual lens on the convergence of light; After introducing the correction coefficient m, the corrected imaging formula is: f m =m·f Substituting into the formula, we get: This shows that the corrected focal length affects the relationship between the object distance u and the image distance v; The corrected relationship between object distance and focal length is: It shows that the object distance u is linearly related to the correction coefficient m, that is, the correction coefficient m will affect the size of the object distance. As the correction coefficient increases, the object distance u increases.

8. The cascaded artificial vision substitution compensation mechanism according to claim 1, characterized in that: The optoelectronic imaging system is used to perform real-time image recognition on the collected images, and display the image recognition results using information carriers including text, voice, audio prompts, and graphic prompts, and use natural language processing mechanisms including generative models based on the transformer architecture to conduct continuous human-computer interaction with the user.

9. A visual aid enhancement device, characterized in that: The cascaded artificial vision substitution compensation mechanism according to any one of claims 1 to 8 is included in the visual assistance enhancement device, comprising: Monocular display glasses: suitable for users with low vision to magnify and enhance images; Handheld devices: used to enhance the user's dynamic visual ability; Glasses-type handheld device is a combination of glasses and handheld devices in which the equivalent convex lens imaging system and the photoelectric imaging system are separated. The equivalent convex lens imaging system and the photoelectric imaging system in the handheld device are separated, wherein the photoelectric imaging system remains in a handheld state, and the equivalent convex lens imaging system is in the form of glasses. After separation, the distance between the two systems is not a fixed value, but is presented on the retina of the human eye as the user's hand-holding position changes; Head-mounted artificial vision devices: implemented in the form of head-mounted glasses, used to provide visual compensation and replacement; or Audio and video output devices: Combined with audio output devices, interact with users through video output devices.

10. A visual aid enhancement device with monocular fixed-distance output, characterized in that: Including the cascaded artificial vision substitution compensation mechanism described in any one of claims 1-8, the monocular fixed-distance output visual auxiliary enhancement device is used to form a visual enhancement solution for non-visually impaired users.

Images