Electronic myopia glasses with eye condition tracking and diopter adjustment feedback

Abstract

The utility model discloses an electronic myopia glasses of eye condition tracking diopter adjustment feedback in the technical field of intelligent wearing equipment, still includes: eye condition tracking sensor sets up on glasses frame for gathering user's eyeball movement data, diopter adjustment structure is built -in optical display module or external replaceable component, main control unit is connected with eye condition tracking sensor and diopter adjustment structure communication, and is configured as: according to eyeball movement data recognition user's gaze distance, based on the gaze distance of identification, generates control instruction to drive diopter adjustment structure carries out corresponding dynamic adjustment or switching, the utility model truly self -adaptation correction: has realized that diopter adjusts dynamically along with visual intention, has solved the pain point of fixed degree glasses fundamentally, flexible hardware path: provides built -in precision adjustment and external convenient replacement two kinds of schemes, adapts different user groups and cost demand.

Description

Technical Field

[0001] This utility model relates to the technical field of intelligent wearable myopia correction devices, specifically an electronic myopia glasses with eye-tracking refractive power adjustment feedback. Background Technology

[0002] Traditional eyeglasses rely on lenses with a fixed diopter, which cannot adapt to the dynamic changes in refractive requirements of the human eye when viewing objects at different distances. Users need to change glasses or endure blurred vision when switching between near and far vision. Wearing mismatched prescriptions for a long time can easily lead to visual fatigue and accelerate the progression of myopia.

[0003] With the development of augmented reality (AR) technology, smart glasses have become an important direction for revolutionizing traditional vision correction methods. Existing technologies have attempted to combine cameras with near-eye display systems to provide users with electronic visual assistance. In recent years, although some smart glasses have tried to introduce electronic focusing technology, most solutions have significant drawbacks: either slow adjustment speed causing dizziness; excessive power consumption affecting battery life; or isolated systems that fail to form a closed-loop feedback with the user's actual visual intent (reflected by eye movements), resulting in insufficient intelligence.

[0004] Therefore, there is an urgent need in this field for electronic myopia glasses that can understand the user's visual intent in real time and optimize the front-end image acquisition strategy intelligently, accurately and quickly to improve visual comfort, image quality and system energy efficiency.

[0005] Based on this, this invention designs an electronic myopia glasses with eye-tracking refractive power adjustment feedback to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an electronic myopia glasses with eye-tracking refractive power adjustment feedback. Its core objective is to determine the user's fixation distance by sensing the user's eye movements in real time, and then drive the refractive power adjustment structure to dynamically and accurately adapt accordingly. This provides the user with an unprecedented, comfortable, and intelligent clear visual experience throughout, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An electronic myopia glasses with eye-tracking diopter adjustment feedback includes a frame, a main control unit, and an optical display module;

[0009] Also includes:

[0010] An eye-tracking sensor, mounted on the eyeglasses frame, is used to collect the user's eye movement data;

[0011] The diopter adjustment structure is implemented in any one or a combination of the following ways:

[0012] a. Built-in optical display module: dynamically changes the refractive power by adjusting the physical parameters of the optical lenses;

[0013] b. External replaceable components: altering the overall refractive power by physically replacing or superimposing them onto the glasses;

[0014] The main control unit is communicatively connected to the eye-tracking sensor and the refractive adjustment structure, and is configured as follows:

[0015] The user's gaze distance is identified based on the eye movement data;

[0016] Based on the identified gaze distance, control commands are generated to drive the diopter adjustment structure to perform corresponding dynamic adjustments or switching.

[0017] As a further embodiment of this utility model, it also includes: an image acquisition unit, disposed on the eyeglass frame, for acquiring images of the external scene;

[0018] The main control unit is further configured to: synchronously adjust the working mode of the image acquisition unit based on the identified gaze distance, so that the image signal output by the image acquisition unit matches the adjustment state of the diopter adjustment structure.

[0019] As a further embodiment of this utility model, the image acquisition unit is any one of the following:

[0020] A focusing camera module is used to automatically focus within a preset focal length range;

[0021] The fixed-focus camera module assembly includes a close-up fixed-focus camera for capturing close-up images and a distant fixed-focus camera for capturing distant images.

[0022] As a further embodiment of this invention: the eye-tracking sensor is disposed on both sides of the bridge of the nose and / or the inside of the eyeglass frame.

[0023] As a further aspect of this utility model: the built-in optical module is a catadioptric optical module, and its adjustment method includes one or more combinations of the following:

[0024] The lens spacing is changed by moving the lens group along the optical axis using a miniature motor;

[0025] The curvature of the lens is adjusted by deforming the piezoelectric material.

[0026] As a further embodiment of this utility model: the external replaceable component is any one or more of the following combinations:

[0027] An attachable refractive patch is a transparent film with a microlens array on its surface;

[0028] Quick-release external lenses are connected to the eyeglass frame via magnetic, snap-on, or twist-lock mechanisms.

[0029] Variable focus film is an electrochromic material that controls the local refractive index change by applying voltage.

[0030] As a further aspect of this utility model: the working modes of the diopter adjustment structure include:

[0031] Automatic mode: Automatically adjusts the refractive power in real time based on data collected by the eye-tracking sensor;

[0032] Manual mode: The preset diopter can be switched via physical buttons, touch area or voice command.

[0033] As a further aspect of this invention, the adjustment response time of the diopter adjustment structure is ≤50 milliseconds, so as to achieve seamless synchronization with visual perception.

[0034] As a further aspect of this utility model: the main control unit is configured to record and analyze the user's historical refractive error adjustment data, and generate personalized refractive error adjustment strategies based on a machine learning model.

[0035] Compared with the prior art, the beneficial effects of this utility model are:

[0036] 1. True adaptive correction: It enables dynamic adjustment of refractive power according to visual intention, fundamentally solving the pain point of fixed-prescription glasses.

[0037] 2. Fast response and smooth experience: The response time can be adjusted to within 50 milliseconds, synchronized with visual perception, effectively avoiding dizziness caused by delay.

[0038] 3. High efficiency and low power consumption: Through the "intent-driven" strategy, the relevant adjustment unit is activated only when needed, avoiding continuous high-power operation.

[0039] 4. Flexible hardware options: Offers both built-in precision adjustment and convenient external replacement to suit different user groups and cost requirements.

[0040] 5. High level of intelligence: It has advanced functions such as environmental adaptation and personalized learning, and continuously optimizes the user experience. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0042] Figure 2 for Figure 1A schematic diagram of a localized explosion;

[0043] The attached diagram lists the components represented by each number as follows:

[0044] 1-Eyeglasses frame, 2-Image acquisition unit, 3-Main control unit, 4-Eye tracking sensor, 5-Reflective optical display module, quick-release external lens, 6-Micro motor, 7. Detailed Implementation

[0045] Example 1: Core System Architecture and Basic Workflow

[0046] like Figure 1 As shown, this embodiment demonstrates the most basic closed-loop system of this invention. After the user wears glasses, the eye-tracking sensor 4 (preferably installed on both sides of the bridge of the nose) continuously collects images of the eyeballs. The main control unit 3 processes the images, identifies the coordinates of the pupil center and the direction of the gaze, and then calculates the approximate distance to the gaze target (such as 0.3m, 1m, 5m or infinity).

[0047] Workflow: The main control unit 3 generates corresponding control commands based on the calculated distance value. If a built-in module is used, the catadioptric optical display module 5 integrates a micro motor 7, and the command drives the micro motor 7 to move the lens group inside the catadioptric optical display module 5; if an external lens is used, the user is prompted to replace it or the system will automatically identify it (see Embodiment 3). After adjustment, the user can obtain a clear vision without any operation.

[0048] Example 2: Precision mechanical adjustment of the built-in module

[0049] like Figure 2 As shown, this embodiment details a preferred implementation of the built-in folding optical display module 5.

[0050] Workflow: The main control unit 3 calculates the required increase in refractive power. It then sends pulse signals to the micro motor 7 (such as a micro stepper motor or voice coil motor) via the drive circuit. Figure 2 As shown, the micro motor 7 converts rotational motion into linear motion. A relatively simple implementation involves adding a gear ring to the outer ring of the existing rotary cylinder adjustment mechanism. The micro motor 7 then uses the precision gears to achieve electrically driven rotation. This allows the internal lens group to be moved a specific distance along the optical axis, thus changing the lens spacing and achieving precise and continuous adjustment of the refractive power. Closed-loop position feedback via an optical encoder or Hall sensor ensures accuracy throughout the process.

[0051] Example 3: Intelligent Recognition and Quick Replacement of External Lenses

[0052] This embodiment expands the intelligent application of external replaceable components. A passive RFID tag is embedded in the edge of the quick-release external lens 6, which contains key parameters such as the lens's diopter and batch number. The outer ring of the quick-release external lens 6 is provided with a magnetic ring, and a corresponding magnetic point is provided on the eyeglass frame 1 for engaging with the magnetic ring.

[0053] Workflow: such as Figure 2 As shown, when the user magnetically attaches the quick-release external lens 6 to the eyeglass frame 1, the RFID reader pre-installed inside the eyeglass frame 1 instantly reads the parameter information from the tag and immediately uploads it to the main control unit 3. The main control unit 3 can automatically determine the current lens power without manual input from the user and update its adjustment strategy baseline accordingly. For example, if the user installs a -2.0D base lens, the main control unit 3 will make dynamic fine adjustments (such as ±0.5D) based on this, thereby greatly improving the convenience and accuracy of the external solution.

[0054] There are many existing technologies for quick-release methods, such as adhesive patches, which will not be listed here.

[0055] In addition, the external or internal lenses used to adjust the refractive power can be adjusted using existing voltage-based methods to adjust parameters such as the curvature of the lens itself. There are many existing technologies for this, so we will not go into detail here.

[0056] Example 4: Ambient Light Adaptive Adjustment Strategy

[0057] This embodiment adds environmental awareness to the system to improve the reliability of tracking and adjustment under complex lighting conditions. An ambient light sensor is integrated into the eyeglass frame.

[0058] Workflow: The main control unit 3 continuously receives data from the ambient light sensor. When the ambient light intensity is below a certain threshold (e.g., 50 Lux), the main control unit 3 determines it to be a low-light environment. At this time, it performs the following operations: ① Reduces the trigger sensitivity of eye-tracking adjustment, such as increasing the gaze duration threshold from 200ms to 500ms, to avoid frequent adjustments caused by occasional gaze shifts; ② Simultaneously, it activates the supplementary lighting unit (infrared LED) and uses alternating "bright pupil" and "non-bright pupil" modes for illumination, accurately locating the pupil by calculating differential images to ensure tracking accuracy in low light. This strategy effectively avoids false triggering and performance degradation of the system in environments with changing light and shadow or dim lighting.

[0059] Example 5: Adjustment strategy based on specific distance threshold

[0060] This embodiment provides a preferred and refined scheme for the judgment logic of the main control unit.

[0061] Workflow: The main control unit 3 has multiple preset distance threshold ranges, for example:

[0062] Near-field reading zone (0.3m ~ 1.0m): When the viewing distance is detected to fall within this range, the main control unit 3 controls the diopter adjustment structure to perform a "reduce diopter" operation to adapt to near-field reading and reduce adjustment pressure.

[0063] Mid-range interactive zone (1.0m ~ 5.0m): When the viewing distance is within this range, the system maintains the current refractive power or makes minor optimization adjustments to adapt to intermediate distances such as computers and dining tables.

[0064] Distant viewing area (≥5.0m): When a viewing distance of 5 meters or more is detected, the main control unit 3 immediately controls the adjustment structure to perform an "increase diopter" operation to ensure the clarity of distant objects. These specific threshold parameters can be personalized by the user or optometrist through the APP.

[0065] Example 6: AI and Personalized Learning Functions

[0066] This embodiment demonstrates the advanced intelligence of the system. The main control unit 3 has a built-in memory that continuously records the user's refractive power adjustment preference data at different times and in different scenarios (for example, a preference to lower the power by -0.25D on weekday evenings to relax the eyes).

[0067] Workflow: After a period of learning, the machine learning model within the system will uncover the user's eye-use habits. Subsequently, the system can proactively predict the user's adjustment needs: for example, when it detects that the user starts reading at night, it proactively suggests or automatically applies the refractive power parameters for a "relaxation mode," thereby upgrading from a "passive response" to "proactive care" and effectively reducing visual fatigue.

[0068] Example 7: Coordinated Operation with Image Acquisition Unit

[0069] This embodiment illustrates the collaborative workflow for optimized image acquisition. The system also includes an image acquisition unit 2.

[0070] Workflow: While controlling the refractive adjustment structure based on eye condition data, the main control unit 3 also sends synchronous commands to the image acquisition unit 2. When it is determined that the user is looking at a distance, the main control unit 3 increases the refractive power on one hand, and controls the image acquisition unit 2 (such as a focusing camera) to switch to telephoto mode and improve center resolution on the other. When it is determined that the user is looking at a near object, it decreases the refractive power while controlling the camera to switch to close-up wide-angle mode. This synchronous optimization of "visual perception" and "visual correction" provides a seamless and immersive experience.

Claims

1. An electronic myopia glasses with eye-tracking refractive power adjustment feedback, comprising a glasses frame, a main control unit, and an optical display module, characterized in that: Also includes: An eye-tracking sensor, mounted on the eyeglasses frame, is used to collect the user's eye movement data; The diopter adjustment structure is implemented in any one or a combination of the following ways: a. Built-in optical display module: dynamically changes the refractive power by adjusting the physical parameters of the optical lenses; b. External replaceable components: altering the overall refractive power by physically replacing or superimposing them onto the glasses; The main control unit is communicatively connected to the eye-tracking sensor and the refractive adjustment structure, and is configured as follows: The user's gaze distance is identified based on the eye movement data; Based on the identified gaze distance, control commands are generated to drive the diopter adjustment structure to perform corresponding dynamic adjustments or switching.

2. The electronic myopia glasses with eye-tracking refractive power adjustment feedback according to claim 1, characterized in that: Also includes: An image acquisition unit is mounted on the eyeglasses frame and is used to acquire images of the external scene. The main control unit is further configured to: synchronously adjust the working mode of the image acquisition unit based on the identified gaze distance, so that the image signal output by the image acquisition unit matches the adjustment state of the diopter adjustment structure.

3. The electronic myopia glasses with eye-tracking refractive power adjustment feedback according to claim 2, characterized in that: The image acquisition unit is any one of the following: A focusing camera module is used to automatically focus within a preset focal length range; The fixed-focus camera module assembly includes a close-up fixed-focus camera for capturing close-up images and a distant fixed-focus camera for capturing distant images.

4. An electronic myopia glasses with eye-tracking refractive power adjustment feedback according to any one of claims 1 to 3, characterized in that: The eye-tracking sensors are located on both sides of the bridge of the nose and / or the inside of the eyeglass frame.

5. An electronic myopia glasses with eye-tracking refractive power adjustment feedback according to any one of claims 1 to 3, characterized in that: The built-in optical module is a catadioptric optical module, and its adjustment method includes one or more combinations of the following: The lens spacing is changed by moving the lens group along the optical axis using a miniature motor; The curvature of the lens is adjusted by deforming the piezoelectric material.

6. An electronic myopia glasses with eye-tracking refractive power adjustment feedback according to any one of claims 1 to 3, characterized in that: The external replaceable component is any one or more of the following combinations: An attachable refractive patch is a transparent film with a microlens array on its surface; Quick-release external lenses are connected to the eyeglass frame via magnetic, snap-on, or twist-lock mechanisms. Variable focus film is an electrochromic material that controls the local refractive index change by applying voltage.

7. An electronic myopia glasses with eye-tracking refractive power adjustment feedback according to any one of claims 1 to 3, characterized in that: The operating modes of the diopter adjustment structure include: Automatic mode: Automatically adjusts the refractive power in real time based on data collected by the eye-tracking sensor; Manual mode: The preset diopter can be switched via physical buttons, touch area or voice command.

8. An electronic myopia glasses with eye-tracking refractive power adjustment feedback according to any one of claims 1 to 3, characterized in that: The adjustment response time of the diopter adjustment structure is ≤50 milliseconds, so as to achieve seamless synchronization with visual perception.

9. An electronic myopia glasses with eye-tracking refractive power adjustment feedback according to any one of claims 1 to 3, characterized in that: The main control unit is configured to record and analyze the user's historical refractive error adjustment data, and generate personalized refractive error adjustment strategies based on machine learning models.

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