Method and system for forming non-random optical distribution limited state space for user face

Abstract

The invention discloses a method and system for forming a limited state space of non-random optical distribution for the face of a user, and the method comprises the steps: enabling the system to be in a wearing state, and enabling the system to be in a fixed wearing geometrical relationship with the eyes of the user; under the combined action of the relative space position between the light source and the face and the eyes of the user, the light emitting direction limitation and the eye safety constraint, the face optical distribution formed by the system is inevitably limited in a limited optical distribution state space. According to the invention, by selecting, adjusting or maintaining the spatial directivity, the intensity distribution, the time characteristic or the spectral composition of the optical radiation in the optical distribution state space, the optical radiation acts on at least two spatially distinguishable face areas of the face in a non-random manner; a stable, repeatable and non-random relative optical relationship is formed between the regions. Cooperative regulation and control of multiple face areas are achieved, and the problems that in the prior art, optical distribution has no clear constraint, potential safety hazards are likely to be caused, and adaptability is poor are solved.

Description

Technical Field

[0001] This invention relates to the fields of near-eye wearable devices, optical distribution control, and facial appearance adjustment technology. Specifically, it relates to a constrained optical distribution state space method and system that, when forming a non-random optical distribution facing the user's face under near-eye wear conditions, is determined by the wearing geometry, light emission direction restrictions, and eye safety constraints. Background Technology

[0002] Under near-eye wearing conditions, a relatively fixed spatial position and posture relationship is formed between the system and the user's eyes. This is determined by the physical structure and ergonomic design of the wearable device. When the system attempts to adjust the user's facial appearance optically, its achievable optical distribution is not arbitrary. On the one hand, the wearing geometry limits the spatial position range of the light source relative to the face and eyes; on the other hand, the device structure, obstruction relationships, and available space restrict the direction of light radiation emission. Simultaneously, to prevent unwanted light radiation from entering the user's eyes, the system must meet eye safety-related constraints such as irradiance, radiance, energy density, and time duty cycle.

[0003] The aforementioned constraints combine to mean that when forming an optical distribution facing the user's face under near-eye wearing conditions, the optical distribution that the system can form is inevitably limited to a finite optical distribution state space. However, existing systems mainly describe the implementation scheme from a single dimension such as specific structure, specific light source, or specific control algorithm. This not only leads to the limitation of fixed optical path design, making it difficult to simultaneously achieve internal display and external facial optical control, but also makes it difficult to abstract this limited state space from the method and system level, thus failing to achieve multi-level and multi-state control. Summary of the Invention

[0004] The purpose of this invention is to provide a constrained state space method and system for forming a non-random optical distribution on a user's face, so as to solve the problems mentioned in the background art.

[0005] The specific technical solution provided by this invention is as follows: A constrained state space method for forming a non-random optical distribution for a user's face, comprising:

[0006] Under the premise that the system is in the wearing state and forms a fixed wearing geometry with the user's eyes, the facial optical distribution that the system can form in the wearing state is limited to a finite optical distribution state space based on the relative spatial position between the light source and the user's face and eyes, the limitation of the light emission direction, and the eye safety constraints. Within the optical distribution state space, by selecting, adjusting or maintaining at least one of the spatial directionality, intensity distribution, temporal characteristics or spectral composition of light radiation, light radiation is applied to at least two spatially distinguishable facial regions in a non-random manner. A stable, repeatable, and non-random relative optical relationship is formed by at least two spatially distinguishable facial regions.

[0007] Preferably, the optical distribution state space is jointly defined by the intersection of the defined constraints, which include: wearing geometry constraints, light emission direction constraints, and eye safety constraints.

[0008] Preferably, when a fixed wearing geometry is formed with the user's eyes, the wearing geometry is jointly determined by the system's positional and posture relative to the user's eyes when the system is in the wearing state.

[0009] Preferably, the light emission direction is limited by the spatial directional relationship of the light radiation relative to at least one predefined direction, including: the user's line of sight direction, the user's eye position direction, and the facial region normal direction.

[0010] Preferably, the eye safety constraints include: limiting light radiation entering the user's eye in at least one of the following aspects: irradiance, radiance, energy density, time duty cycle, and spatial distribution.

[0011] Preferably, the optical radiation parameters include: the spatial directionality of optical radiation, the intensity distribution of optical radiation, the temporal characteristics of optical radiation, the spectral composition of optical radiation, and the blocking or distribution pattern of optical radiation.

[0012] Preferably, the non-random relative optical relationship is characterized by at least one parameter difference, which includes: inter-regional illuminance difference or illuminance ratio, inter-regional brightness difference or brightness ratio, inter-regional chromaticity difference, inter-regional spectral composition difference, and inter-regional light emission directionality difference.

[0013] Preferably, the non-random relative optical relationship also includes dynamic adjustment based on changes in the wearing status of different carriers, changes in ambient light, or changes in facial reflective characteristics.

[0014] On the other hand, the present invention also provides a system for forming a non-random optical distribution facing the user's face under near-eye wearing conditions, and performs a constrained state-space method for forming a non-random optical distribution facing the user's face. The system includes: Near-eye wearing devices, which form a fixed wearing geometry with the user's eyes when worn; The light radiation generation and modulation unit is used to generate and adjust the spatial directionality, intensity distribution, temporal characteristics, or spectral composition of light radiation. An optical path guiding and spatial distribution system is used to guide regulated light radiation to the user's facial area; When the system is in the wearing state, the facial optical distribution that the system can form is necessarily limited to a finite optical distribution state space due to the combined effects of the wearing geometry, the light emission direction limitation, and the eye safety constraints. The system is configured to form a non-random facial optical distribution state only within the optical distribution state space, so that the light radiation forms a stable, repeatable and non-random relative optical relationship between at least two spatially distinguishable facial regions.

[0015] Preferably, in the constrained state space method for forming a non-random optical distribution on the user's face, the selection, adjustment, or maintenance of optical radiation parameters are all constrained by the optical distribution state space. This means that when the system is in the wearing state, the facial optical distribution state can only be formed within the optical distribution state space, and cannot form an optical distribution beyond the optical distribution state space.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) In this invention, the fixed geometric relationship of the system wearing state, the relative spatial position of the light source, the restriction of the light output direction and the eye safety constraint are combined to define a limited optical distribution state space, so as to achieve a high degree of matching between the facial optical distribution and the wearing state, and solve the problems of the lack of clear constraints on optical distribution in the prior art, which easily leads to safety hazards and poor adaptability.

[0017] (2) In this invention, light radiation parameters are selected, adjusted or maintained in a non-random manner so that light radiation acts directionally on at least two spatially distinguishable areas of the face. This breaks through the limitations of existing technologies where light radiation acts on multiple single areas or randomly, and achieves coordinated regulation of multiple facial areas, avoiding problems such as chaotic regulation effects and uneven improvement of facial appearance.

[0018] (3) The present invention enables the formation of repeatable and non-random relative optical relationships between multiple facial regions, making the facial appearance control effect stable and controllable, and solving the problem that the control effect in the prior art is irregular and unrepeatable, resulting in poor user experience.

[0019] (4) This invention defines the physical premise for the formation of a non-random optical distribution on the face under near-eye wearing conditions from the perspective of method and system. It attributes the boundary of the reachable optical distribution to the combined effect of wearing geometry, light emission direction limitation and eye safety constraints. Through multi-level system structure and instantiation, a set of progressive and controllable control process is formed, realizing the unity of platform-level technical abstraction and engineering feasibility, improving the controllability of the control process and the effectiveness of the control results. It establishes a clear and unavoidable industry entry standard for the field of near-eye wearing facial optical control. Moreover, the formation mechanism of the constrained optical distribution state space and non-random relative optical relationship provided by this invention can be widely applied to a variety of facial optical application scenarios. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating the steps of the constrained state space method provided in this embodiment of the invention. Figure 2 This is a schematic diagram of the functional modules of the confined state-space system provided in an embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0022] In this embodiment of the invention, when the system is in a wearing state and forms a fixed wearing geometry with the user's eyes, based on the relative spatial position between the light source and the user's face and eyes, the limitation of the light emission direction, and the eye safety constraints, it is determined that the facial optical distribution that the system can form in the wearing state is limited to a finite optical distribution state space; within the optical distribution state space, by selecting, adjusting, or maintaining at least one light radiation parameter, the light radiation acts on at least two spatially distinguishable facial regions in a non-random manner; and then a repeatable and non-random relative optical relationship is formed between at least two facial regions.

[0023] Example 1 Combination Figure 1 As shown, this embodiment provides a constrained state space method for forming a non-random optical distribution on a user's face. The specific steps of the method are as follows: Step 1: Construct the state space of the constrained optical distribution.

[0024] For example, when the system is in a wearing state and forms a fixed wearing geometry with the user's eyes, the present invention constructs a constrained state space for the facial optical distribution that the system can form: Collect geometric relationship information of wearing: The spatial position and posture features of the user's face, as well as the relative position and direction of the light source with respect to the face, are collected through the perception and detection system.

[0025] Determine the light emission direction restrictions: Based on the installation location, light emission port structure, light shielding structure, and light limiting structure of the light source platform system, determine the set of directions in which light radiation can be emitted and the set of directions in which it cannot be emitted.

[0026] Determine eye safety constraints: Based on eye location, light source direction, optical modulation structure, and safety threshold table, determine the maximum permissible intensity, directional range, and time duty cycle of light radiation entering the eye.

[0027] Constructing a constrained state space: The intersection of the aforementioned geometric constraints, directional constraints, and safety constraints is performed to form a finite optical distribution state space composed of feasible combinations of optical radiation parameters. Furthermore, this constrained optical distribution state space formed in this invention is used to limit the feasible range of subsequent candidate combinations of optical radiation parameters and participates in the calculation as a constraint condition for illumination prediction, optimization, and adjustment steps.

[0028] Step 2: Generate candidate combinations of optical radiation parameters.

[0029] For example, the present invention generates multiple candidate combinations of optical radiation parameters within a constrained optical distribution state space. The parameters in the combination include at least: the spatial directionality of optical radiation, the intensity distribution of optical radiation, the temporal characteristics of optical radiation, the spectral composition of optical radiation, and the occlusion or distribution form of optical radiation. The parameters in the combination are used as inputs for subsequent prediction and optimization.

[0030] Step 3: Predict the lighting effects of candidate combinations.

[0031] For example, a facial optical presentation state model is constructed using a target modeling and optimization system, and the following technical actions are performed for each candidate combination of light radiation parameters: Regional illumination response prediction: Based on the surface normal direction, reflection characteristics, relative light source position, and ambient light conditions of the facial region, the illuminance, brightness, chromaticity, and directional response of each region under this combination are predicted. In this invention, the prediction is not an independent calculation of a single light source parameter, but rather an evaluation of the comprehensive illumination effect of multiple parameter combinations within a confined state space.

[0032] Calculate the relative optical relationship between regions: calculate the illuminance ratio, luminance ratio, chromaticity difference or directionality difference between each region to characterize the relative optical relationship formed by the combination.

[0033] Constraint filtering: Eliminate combinations that may cause eye radiation to exceed the threshold, power consumption to exceed the limit, or temperature rise to exceed the limit.

[0034] Step 4: Determine the optimization objective and select the optimal combination.

[0035] For example, in this invention, the desired range of the target relative optical relationship is determined based on a preset or dynamically set target relative optical relationship. The target includes, but is not limited to: increasing the brightness of a certain area, reducing shadow contrast, adjusting the chromatic difference between areas, and controlling the directionality of illumination to weaken or enhance the outline. After determining the desired range of the target relative optical relationship, the following evaluation and selection are further performed: Deviation assessment: Calculate the deviation between the candidate combination and the relative optical relationship of the target.

[0036] Optimal optical radiation parameter combination selection: Under the premise of satisfying all constraints, the optical radiation parameter combination with the smallest deviation is selected as the final output. The selection process in this invention includes a complete technical action chain of generating, screening, predicting, evaluating and selecting optical radiation parameter combinations, rather than independently adjusting a single parameter.

[0037] Step 5: Perform optical radiation output and modulation.

[0038] For example, based on the optimal combination of light radiation parameters, a light source generation system outputs basic light radiation; and a light source modulation and shaping system adjusts the directionality, intensity, spectrum, occlusion, or distribution of the basic light radiation; then, a light path guiding and spatial distribution system guides the modulated light radiation to the target facial area, ultimately forming the target optical distribution.

[0039] Step Six: Establishing a non-random relative optical relationship.

[0040] For example, the light radiation output by the present invention through the above steps forms a stable, repeatable, predictable, and non-random relative optical relationship between at least two spatially distinguishable facial regions. The non-random relative optical relationship is formed by the system selecting and adjusting the light radiation parameters based on an optimization objective within a constrained optical distribution state space, rather than by changes in ambient light or random user operations.

[0041] Step 7: Closed-loop feedback and dynamic adjustment.

[0042] For example, the present invention collects the lighting effect in real time through a sensing and detection system and performs the following technical actions: Effect deviation detection: Calculate the deviation between the relative optical relationship between the actual area and the target.

[0043] Parameter update: If the deviation exceeds the threshold, a new candidate combination is generated in the constrained state space and a new optimal combination is selected.

[0044] Smooth adjustment: Achieving a smooth transition in light radiation output through time modulation or gradual control.

[0045] Example 2 In this embodiment, combined with Figure 2As shown, this embodiment describes, from a system-level perspective, the constrained optical distribution state space that inevitably exists when a non-random optical distribution is formed facing the user's face under near-eye wearing conditions. Based on this, through multi-level system construction and instantiation, stable control of the user's facial appearance optics is achieved. This establishes a constrained state space system for forming a non-random optical distribution facing the user's face, independent of specific structures, light source forms, and control methods. Furthermore, the system of this invention can be used for optical beauty, optical therapy, skin optical stimulation, optical treatment, or other facial optical effects based on light radiation. Among these, the light radiation effect, depending on its target and mechanism of action, can be used for at least one of the following application categories: (1) Optical appearance control for the purpose of improving the visual presentation of the face; (2) Optical control applications for the purpose of adjusting specific presentation states; (3) Optical adjustment for auxiliary adjustment purposes; (4) Optical aids for acting on facial tissues with specific spectral or energy parameters.

[0046] Furthermore, the technical solution of the present invention is not limited to the specific application categories mentioned above. Its core lies in the formation mechanism of the constrained optical distribution state space and the non-random relative optical relationship, which is unrelated to the specific type of optical action.

[0047] In this embodiment, a constrained state space system for forming a non-random optical distribution on a user's face includes at least the following functional modules: a near-eye wearing device, a sensing and detection system, a data processing and decision-making system, a target modeling and optimization system, a light source platform system, a light source generation system, a light source modulation and shaping system, an optical path guidance and spatial distribution system, an energy and power management system, a human-computer interaction and mode management system, and a closed-loop feedback and adaptive adjustment system. In this invention, the above-mentioned system modules logically cooperate to jointly constitute a complete system for forming a non-random facial optical distribution within a constrained optical distribution state space. When the complete system is worn, the wearing geometry, light emission direction limitations, and eye safety constraints work together to ensure that the facial optical distribution that the system can form is necessarily limited to a finite optical distribution state space. Since the selection, adjustment, or maintenance of light radiation parameters in the method of Embodiment 1 is limited to the optical distribution state space, when the system is worn, it can only form a facial optical distribution state within the optical distribution state space and cannot form an optical distribution beyond the optical distribution state space. Furthermore, the system is configured to form a non-random facial optical distribution state only within the optical distribution state space, so that the light radiation forms a stable, repeatable, and non-random relative optical relationship between at least two spatially distinguishable facial regions.

[0048] For example, the functions of each module are as follows: Near-eye wearing device: When worn, it forms a fixed wearing geometry with the user's eyes; Sensing and Detection System: Used to collect information on ambient light conditions, spatial position, posture features, and surface optical state of the target face related to the formation of facial optical distribution when the system is in the wearing state; Data processing and decision-making system: used to analyze, extract features and determine the state of data collected by the sensing and detection system, and generate control decisions for subsequent light radiation regulation; Target Modeling and Optimization System: Used to construct an optical presentation state model of a target face based on the parsed data, and determine the optimized target parameters for light radiation adjustment according to the facial appearance control target; Light source platform system: used to define the spatial installation position, light emission direction, and combination method of the light source relative to the target face when worn; Light source generation system: used to generate basic light output with predetermined intensity, direction or temporal characteristics according to predefined control decisions; Light source modulation and shaping system: used to adjust the spatial directionality, distribution range, occlusion relationship or other optical characteristics of the basic light output; Among them, the light source generation system and the light source modulation and shaping system together form a light radiation generation and modulation unit, which is used to generate and adjust the spatial directionality, intensity distribution, temporal characteristics or spectral composition of light radiation. Optical path guidance and spatial distribution system: used to guide modulated light radiation to the target face and its surrounding area; Energy and power management system: used to coordinate and manage the energy supply of various functional modules of the system to ensure stable system operation; Human-Computer Interaction and Mode Management System: Used to receive user input and set system operating modes or adjust parameters; Closed-loop feedback and adaptive adjustment system: used to dynamically adjust the optical radiation output based on real-time detection results.

[0049] For example, the overall operation flow of the system of the present invention is as follows: Step a1: The sensing and detection system starts up and collects information. The system first collects information about the environment and target object through the sensing and detection system. The collected information includes ambient light conditions, spatial position, posture characteristics and surface condition of the target object.

[0050] Step a2: The data processing and decision system receives and parses the raw data collected from the data collection. The raw data is transmitted to the data processing and decision system, where it is preprocessed, features extracted, and status determined to form structured information.

[0051] Step a3: The target modeling and optimization system generates the target state. Based on the ambient light information, facial spatial structure information, and facial surface reflectivity information output by the data processing and decision-making system, the target face optical presentation state model is constructed. The optical presentation state model includes the following: Facial region segmentation model: Based on the facial geometry, the face is divided into multiple spatially distinguishable regions, and a corresponding set of illumination response parameters is established for each region.

[0052] Regional illumination response model (illumination effect calculation logic): For each region, based on its surface normal direction, reflection characteristics, relative light source position, and ambient light conditions, the optical response of that region under different light radiation directions, intensities, or spectral combinations is calculated. Specifically, this includes: the influence of the angle between the light source direction and the region normal on brightness; the influence of light source distance on brightness; the influence of regional reflection characteristics on spectral composition; and the superposition effect of ambient light and system light. This calculation is used to obtain the "predicted value of regional illumination effect." The prediction of regional illumination effect is not an independent calculation of a single light source parameter, but rather an evaluation of the comprehensive influence of multiple combinations of light radiation parameters and their relative optical relationships on different facial regions within a constrained optical distribution state space.

[0053] Relative optical relationship model: Based on the predicted illumination effect values ​​of each region, the illuminance ratio, brightness ratio, chromaticity difference or directionality difference between regions are calculated to characterize the relative optical relationship between facial regions.

[0054] Optimization target definition (technical logic of optimization direction): Based on the preset or dynamically set target relative optical relationship (such as increasing the brightness of a certain area, reducing shadow contrast, enhancing skin tone uniformity, etc.), determine the desired range of the target relative optical relationship. The optimization direction is defined as: making the illuminance ratio between areas approach the target value; making the brightness difference between areas decrease or increase to the target range; making the chromaticity difference shift towards the target skin tone; making the directionality of illumination meet the targets such as "weak shadows" or "softened contours".

[0055] Illumination adjustment parameter output: Based on the above optimization direction, control parameters for the light source generation system and the light source modulation and shaping system are generated, including: light source brightness adjustment amount, light source direction adjustment amount, spectral composition adjustment amount, time modulation parameter, and occlusion or distribution adjustment parameter.

[0056] Step a4: Determine the spatial layout of the light source platform system. Based on the target model and optimization results, the light source platform system determines the installation position, relative direction, and combination method of the light source, providing stable spatial support for the light source.

[0057] Step a5: The light source generation system generates basic light output. According to the control instructions, the light source generation system generates basic light output with specific intensity, direction and time characteristics.

[0058] Step a6: The light generated by the light source modulation and shaping system is processed by the light source modulation and shaping system. By adjusting the polarization state, occlusion range or spatial distribution of the light radiation, the modulated light radiation meets the requirements for forming the relative optical relationship between the target facial areas.

[0059] Step a7: The optical path guiding and spatial distribution system guides the light to the target. The modulated light is guided to the target object and its surrounding area through the optical path guiding and spatial distribution system.

[0060] Step a8: Energy and Power Management System Coordinates System Operation. The energy and power management system coordinates the energy supply to each functional module to ensure the safe and stable operation of the system.

[0061] Step a9: The human-computer interaction and mode management system provides a control interface. The human-computer interaction and mode management system allows users to select or adjust the system's operating mode and transmit user preferences to the system.

[0062] Step a10: Closed-loop feedback and adaptive adjustment system continuously optimizes the sensing and detection system, which continuously monitors the lighting effect. The feedback information is then fed back into the data processing and decision-making system, forming a closed-loop adaptive adjustment.

[0063] Example 3 In this embodiment, the present invention is based on a complete system in Embodiment 2 that includes at least the following functional modules: a near-eye wearing device, a sensing and detection system, a data processing and decision-making system, a target modeling and optimization system, a light source platform system, a light source generation system, a light source modulation and shaping system, an optical path guidance and spatial distribution system, an energy and power management system, a human-computer interaction and mode management system, and a closed-loop feedback and adaptive adjustment system. In another specific embodiment, the following workflow can also be implemented: Step b1: The perception and detection system uses an ambient light sensing sensor and a target imaging device to collect real-time data on the surrounding light environment and the target face, thereby obtaining environmental and target information data.

[0064] Step b2: The control processing unit in the data processing and decision-making system parses the collected data and transmits the parsed data to the control processing unit, which then runs the algorithm model for analysis.

[0065] Step b3: Construct the target face model using the target face modeling and optimization system, and calculate the required lighting parameters based on the preset optimization target.

[0066] Step b4: Determine the installation and combination method of the light source platform system. Determine the installation position of the light source on single or combined carriers such as glasses, hair clips, and brooches.

[0067] Step b5: The controllable light source module built into the light source generation system generates light with specific brightness, direction and time characteristics according to the control signal.

[0068] Step b6: The optical modulation components in the light source modulation and shaping system adjust the polarization, occlusion, or distribution generated in the light output.

[0069] Step b7: The optical path blocking and orientation components in the optical path guidance and spatial distribution system guide the modulated light to the target face and surrounding skin area.

[0070] Step b8: The power supply and power control module in the energy and power management system ensures the operation of power supply and provides stable energy to the various functional terminals of the system.

[0071] Step b9: The user control interface in the human-computer interaction and mode management system sets the operating mode. Users can select the system operating mode or adjust parameters through the control interface.

[0072] Step b10: In the closed-loop feedback and adaptive adjustment system, the real-time feedback and dynamic adjustment system continuously monitors the lighting effect and adjusts the light source output in real time to form a closed-loop optimization.

[0073] Example 4 In this embodiment, guided by the operational logic of steps b1-b10 in the system implementation of Embodiment 3, the present invention further combines two preferred exemplary engineering implementation methods selected based on different user wearing conditions and device carrier availability. That is, the present invention is not limited to the following specific devices, structures, or combinations. Those skilled in the art can achieve the same or similar technical effects using other equivalent devices or structures without departing from the directional guidance of the operational logic of steps b1-b10 in the system implementation of Embodiment 3. It should be understood that the operational logic of steps b1-b10 in the system implementation of Embodiment 3 is used to define the technical direction and functional boundaries of the present invention. Other preferred implementation methods are merely specific implementation examples selected under this directional guidance, and the two are independent of each other in terms of technical level and protection purpose.

[0074] For example, as a preferred embodiment, this embodiment is merely an exemplary engineering implementation and does not affect the implementation of other equivalent solutions, nor is it intended to limit the technical solutions of Embodiments 1, 2, and 3. In this embodiment, the present invention selects a male user with myopia and relies on the glasses carrier he wears. From an engineering level perspective, based on Embodiment 2, the present invention includes at least the following functional modules: a myopia wearing device, a sensing and detection system, a data processing and decision-making system, a target modeling and optimization system, a light source platform system, a light source generation system, a light source modulation and shaping system, an optical path guidance and spatial distribution system, an energy and power management system, a human-computer interaction and mode management system, and a closed-loop feedback and adaptive adjustment system. Furthermore, a system comprising the following sub-functional modules is constructed: The perception and detection system includes a wide-angle camera, an ambient light sensor, an inertial measurement unit (IMU), and a distance sensing device (optional). The wide-angle camera is mounted inside the frame or above the nose pads to acquire facial images, wearing posture, and facial region distribution information. The ambient light sensor collects data on ambient illumination and color temperature trends. The IMU detects changes in head posture to correct for changes in the wearing geometry. Optional distance sensing devices include a ToF ranging module or a binocular wide-angle camera to estimate the relative distance between the frame and key facial areas.

[0075] Data processing and decision-making system: This includes a main control processing unit (MCU or SoC) and a storage unit. The main control processing unit is used for sensor data fusion, status judgment, and control strategy generation; the storage unit is used to store wear calibration parameters, user preferences, and safety thresholds.

[0076] The target modeling and optimization system includes a facial region segmentation module, an illumination effect prediction module, and an optimized target management module. The facial region segmentation module divides the face into multiple spatial regions based on wide-angle camera images; the illumination effect prediction module predicts the illumination response of each region under different light source combinations and modulation states; and the optimized target management module defines the relative optical relationships between regions and generates adjustment directions.

[0077] Light source platform system: includes a frame carrier structure and an adjustable mounting structure. The frame carrier structure has light source mounting positions at the front edge of the frame, temples, or nose pad area; the adjustable mounting structure is used to fine-tune the light emission direction of the light source to adapt to different facial geometries.

[0078] Light source generation system: includes a multi-channel LED light source module and a constant current drive circuit. The multi-channel LED light source module includes white, warm white, or multi-color LEDs to provide basic light output with adjustable brightness and color temperature; the constant current drive circuit is used to independently control the output of each light source channel.

[0079] The light source modulation and shaping system includes a collimating lens or aspherical lens, a diffuser, a polarizer, a filter or light filter, a grid or honeycomb light limiter, and a light-shielding plate. The collimating lens or aspherical lens controls the beam divergence angle; the diffuser reduces beam inhomogeneity; the polarizer adjusts reflection characteristics and reduces highlights; the filter or light filter controls the spectral composition; the grid or honeycomb light limiter restricts the light emission angle; and the light-shielding plate forms a physical barrier in the direction of entry into the eye.

[0080] Optical path guidance and spatial distribution system: includes fiber optic / optical guide strips and slit / linear light exit structures. The fiber optic / optical guide strips guide light from inside the temple or frame to a designated light exit position; the slit / linear light exit structure forms a light distribution with distinct directional differences.

[0081] Energy and power management system: includes a rechargeable battery and a power management chip. The rechargeable battery is integrated into the temple of the eyeglasses; the power management chip is used for power distribution, charge and discharge management, and temperature rise control.

[0082] Human-Computer Interaction and Mode Management System: Includes physical buttons or touch areas and a wireless communication module (optional). The physical buttons or touch areas are used for mode switching; the optional wireless communication module is used for interaction with external devices.

[0083] Closed-loop feedback and adaptive adjustment system: This includes camera-based effect feedback and IMU-based dynamic compensation. Camera-based effect feedback is used to detect changes in brightness or chromaticity between areas; IMU-based dynamic compensation is used for real-time correction when wearing the device changes.

[0084] In this preferred embodiment, after the system is powered on, the wearing geometry calibration is completed using a wide-angle camera and an IMU. The target modeling and optimization system sets the target relative optical relationship between regions based on the facial region segmentation results. Within the constrained optical distribution state space, candidate light source outputs and modulation combinations are generated. The impact of each candidate combination on the facial region illumination effect is predicted, and combinations that do not meet the safety constraints are eliminated; the optimal combination is selected and the LED light source is driven, forming the target light distribution through lenses, diffusers, polarizers, filters, and light-limiting structures; finally, the effect deviation is detected through camera feedback and closed-loop adjustment is performed.

[0085] Example 5 In this embodiment, as another preferred embodiment, this embodiment is only an exemplary engineering implementation method and does not affect the implementation of other equivalent solutions, nor is it a limitation of the technical solutions of Embodiments 1, 2, and 3. In this embodiment, the present invention selects female users with normal vision and relies on the combination kit carriers such as hair accessories / earrings / necklaces / breast clips they wear. From an engineering level, based on Embodiment 2, it includes at least the following functional modules: a near-eye wearing device, a sensing and detection system, a data processing and decision-making system, a target modeling and optimization system, a light source platform system, a light source generation system, a light source modulation and shaping system, an optical path guidance and spatial distribution system, an energy and power management system, a human-computer interaction and mode management system, and a closed-loop feedback and adaptive adjustment system. Furthermore, it constructs a system including the following sub-functional modules: Sensing and Detection System: Includes a forward-facing wide-angle camera, an ambient light multi-channel sensor, and a photodiode array (optional). The forward-facing wide-angle camera is integrated into a hair accessory or bra clip for facial region recognition and effect feedback; the ambient light multi-channel sensor is integrated into a bra clip or necklace for collecting changes in ambient light; the optional photodiode array is used for close-range sampling of changes in skin reflection.

[0086] Data processing and decision-making system: includes a master control unit, slave control units, and wireless communication links. The master control unit is located in a chest clip or necklace for centralized decision-making; the slave control units are located in earrings or hair ornaments for local operation; and the wireless communication links are used for multi-node synchronous control.

[0087] The target modeling and optimization system includes a multi-carrier geometric fusion module and a directional combination optimization module. The multi-carrier geometric fusion module is used to fuse the positional relationships of hair ornaments, earrings, necklaces, and breast clips relative to the face; the directional combination optimization module is used to select the optimal solution from the combination of multiple light source directions.

[0088] Light source platform system: includes hair accessory platform, earring platform, necklace platform and chest clip platform. The hair accessory platform is located near the forehead area; the earring platform is located near the side of the cheekbone; the necklace platform is located near the lower jaw; and the chest clip platform is located near the chest area.

[0089] Light source generation system: For carriers such as hair accessories, earrings, necklaces, and brooches, linear LED light strips, point light source micro LEDs, multi-channel RGBCW LEDs, and high color rendering index white LEDs are used to generate corresponding basic light.

[0090] Light source modulation and shaping system: Different structures are used to adjust the light source for carriers such as hair accessories, earrings, necklaces, and bra clips. Hair accessories use diffuser sheets and light-blocking edge structures; earrings use honeycomb light-limiting sheets and micro-shading masks; necklaces use filter groups and polarizers; and bra clips use replaceable diffuser sheets and grid sheets.

[0091] The optical path guiding and spatial distribution system comprises a short light guide strip or reflector cup structure and a large-area soft light surface. The short light guide strip or reflector cup structure is used to adjust the light output direction; the large-area soft light surface is used to create background fill light.

[0092] Energy and power management system: includes main battery, micro batteries, and power distribution strategy. The main battery is located in a brooch or necklace; the micro batteries are located in earrings or hair accessories; the power distribution strategy prioritizes output from directional nodes.

[0093] Human-computer interaction and mode management system: includes touch area or mobile terminal application, used to select appearance control mode.

[0094] Closed-loop feedback and adaptive adjustment system: It includes camera feedback as the priority, photoelectric feedback as a supplement, and integrates a multi-node synchronous adjustment mechanism to perform adaptive adjustment.

[0095] In this preferred embodiment, the main control unit of the system identifies each wearing node and establishes communication; constructs a multi-carrier relative facial geometric model; defines regional targets and directional combination targets; generates multi-node output combinations within a confined state space; predicts and filters the contribution of each combination to the regional illumination effect; synchronously drives the light sources of each node and performs closed-loop correction. Furthermore, the wide-angle camera, LED light source, optical fiber, polarizer, filter, grating, and cellular light limiter listed in this preferred embodiment are merely exemplary devices, and those skilled in the art can replace them with devices having the same or similar functions. Moreover, the descriptions of the user's visual state or gender in this preferred embodiment are only used to illustrate the selection logic of different wearing carrier and device combinations and do not constitute a limitation on the applicable objects of this invention.

[0096] This invention defines the physical prerequisites for forming a non-random optical distribution on the face under near-eye wearing conditions from a methodological and system perspective. It attributes the boundary of the achievable optical distribution to the combined effects of wearing geometry, light emission direction limitations, and eye safety constraints. Through a multi-level system structure and instantiation, it achieves a unity of platform-level technical abstraction and engineering feasibility. This establishes a clear and unavoidable industry standard for the field of near-eye wearing facial optical control. The formation mechanism of the constrained optical distribution state space and non-random relative optical relationships provided by this invention is applicable to various facial optical applications, including appearance control, optical beauty, optical therapy, and optical treatment.

[0097] It should be noted that Embodiments 4 and 5 of this invention exist as exemplary and alternative engineering implementations, and do not constitute a limitation on the scope of protection of the technical solutions in Embodiments 1, 2, and 3. Furthermore, in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0098] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A constrained state-space method for forming a non-random optical distribution on a user's face, characterized in that: The restricted state space method includes: When the system is in the wearing state and forms a fixed wearing geometry with the user's eyes, the facial optical distribution that the system can form in the wearing state is limited to a finite optical distribution state space based on the relative spatial position between the light source and the user's face and eyes, the limitation of the light emission direction, and the eye safety constraints. Within the optical distribution state space, by selecting, adjusting, or maintaining at least one optical radiation parameter, optical radiation is applied to at least two spatially distinguishable facial regions in a non-random manner. A repeatable and non-random relative optical relationship is formed by at least two spatially distinguishable facial regions.

2. The constrained state-space method for forming a non-random optical distribution facing a user's face according to claim 1, characterized in that: The optical distribution state space is jointly defined by the intersection of the defined constraints, which include: wearing geometry constraints, light emission direction constraints, and eye safety constraints.

3. The constrained state-space method for forming a non-random optical distribution facing a user's face according to claim 2, characterized in that: When a fixed wearing geometry is formed with the user's eyes, the wearing geometry is determined by the system's position and posture relative to the user's eyes when the system is in the wearing state.

4. The constrained state-space method for forming a non-random optical distribution facing a user's face according to claim 3, characterized in that: The light emission direction limitation is defined by the spatial directional relationship of the light radiation relative to at least one predefined direction, which includes: the user's line of sight direction, the user's eye position direction, and the facial region normal direction.

5. The constrained state-space method for forming a non-random optical distribution facing a user's face according to claim 4, characterized in that: The eye safety constraints include: limiting light radiation entering the user's eye in at least one of the following aspects: irradiance, radiance, energy density, time duty cycle, and spatial distribution.

6. A constrained state-space method for forming a non-random optical distribution facing a user's face according to claim 5, characterized in that: The optical radiation parameters include: the spatial directionality of optical radiation, the intensity distribution of optical radiation, the temporal characteristics of optical radiation, the spectral composition of optical radiation, and the blocking or distribution pattern of optical radiation.

7. A constrained state-space method for forming a non-random optical distribution for a user's face according to claim 6, characterized in that: The non-random relative optical relationship is characterized by at least one parameter difference, which includes: inter-regional illuminance difference or illuminance ratio, inter-regional brightness difference or brightness ratio, inter-regional chromaticity difference, inter-regional spectral composition difference, and inter-regional light emission directionality difference.

8. A constrained state-space method for forming a non-random optical distribution facing a user's face according to claim 7, characterized in that: The non-random relative optical relationship also includes dynamic adjustment based on changes in the wearing status of different carriers, changes in ambient light, or changes in facial reflective characteristics.

9. A system for forming a non-random optical distribution facing a user's face under near-eye wearing conditions, executing the constrained state-space method for forming a non-random optical distribution facing a user's face as described in any one of claims 1-8, characterized in that: The system includes: Near-eye wearing devices, which form a fixed wearing geometry with the user's eyes when worn; The light radiation generation and modulation unit is used to generate and adjust the spatial directionality, intensity distribution, temporal characteristics, or spectral composition of light radiation. An optical path guiding and spatial distribution system is used to guide regulated light radiation to the user's facial area; When the system is in the wearing state, the combined effects of the wearing geometry, light emission direction limitation and eye safety constraints mean that the facial optical distribution that the system can form is necessarily limited to a finite optical distribution state space. The system is configured to form a non-random facial optical distribution state only within the optical distribution state space, such that light radiation forms a repeatable and non-random relative optical relationship between at least two spatially distinguishable facial regions.

10. A system for forming a non-random optical distribution facing the user's face under near-eye wearing conditions, as described in claim 9, characterized in that: In the restricted state space method for forming a non-random optical distribution on the user's face, the selection, adjustment, or maintenance of light radiation parameters are all restricted by the optical distribution state space, so that when the system is in the wearing state, the facial optical distribution state can only be formed within the optical distribution state space.

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