5538results about "Optical parts" patented technology

A computer-implemented system and method for pupil-directed retinal projection in near-eye displays are disclosed. The computer-implemented system provides smart glasses with directed physical pixels that project light beams / signals directly onto a user's retina based on pupil position and size. The glasses comprise a frame, lenses with directed pixel layers, and sensors for tracking pupil movement. Each directed pixel may generate multiple virtual pixels by rapidly changing its emission angle. The glasses function as prescription lenses, virtual reality displays, and augmented reality devices without traditional optical systems. Additional features include depth sensors, cameras, and connectivity to peripheral devices. The glasses enable a seamless blend of virtual and real-world experiences, creating an immersive “Mixverse” environment. Various input methods, including gesture recognition and brain-computer interfaces, allow for intuitive control and interaction.

There are provided a method for designing a spectacle lens and a related technique thereof, the method including: a modeling step of dividing a pattern into multiple models with a deviation from a normally worn state of the spectacle lens as decentering, in which a reference model, a decenter model, and a tilt model are prepared as the multiple model; a sensitivity calculation step of calculating a decenter sensitivity and a tilt sensitivity; and a design step of using a base curve value in the vicinity of a balance solution as a base curve of the spectacle lens, wherein a base curve value c [unit: diopter (D)] which is a curvature of a surface in a region H where the on-retinal non-convergence region is not provided on an object-side surface is taken as x-axis, and the decenter sensitivity and the tilt sensitivity [unit: diopter (D)] are taken as y-axis, and an intersection of a plot of the decenter sensitivity and a plot of the tilt sensitivity is taken as the balance solution.

The invention relates to the technical field of ophthalmology optics, in particular to a myopia control lens optical system integrating ray tracing and aberration correction, which comprises a wavefront phase acquisition module, a wavefront feature statistics module, a ray tracing simulation module, a microstructure form regulation and control module and a feedback control module. According to the method, accurate identification and datamation description of wavefront change under a dynamic vision condition can be realized by acquiring an eyeball wavefront phase matrix, performing gridding partition analysis and extracting local phase offset amplitude and time sequence characteristics, and a light propagation path model is constructed by combining statistical characteristics of an abnormal wavefront region; the self-adaptive compensation is carried out on the local focus deviation, and the spatial distribution optimization of the refractive index and the curvature is further realized based on the microstructure form regulation and control, so that the real-time matching of the optical parameters and the wavefront state is maintained during the processing and use of the lens, and therefore, the imaging quality is stabilized, the visual definition is improved, and the myopia control reliability is enhanced.

The invention provides a dynamic myopia management lens prescription customization method and system, and relates to the technical field of lens design and customization. According to the dynamic myopia management lens prescription customization technology provided by the invention, ophthalmic basic data of a patient is acquired; then periodically follow-up the patient to obtain ophthalmology measurement follow-up data of the patient; the joint evaluation model dynamically updates a myopia risk evaluation grade of the patient based on ophthalmology basic data and ophthalmology measurement follow-up visit data; and finally, dynamically updating the lens prescription based on the myopia risk assessment level of each time by the joint assessment model. According to the technical scheme, the combined evaluation model can perform dynamic lens prescription adjustment according to follow-up visit ocular axis progress and choroid change conditions, dynamic myopia management lens prescription customization, whole-course tracking of a myopia cycle and individualized prevention and control management are realized, and thus the effectiveness and continuity of myopia prevention and control are improved.

The present invention concerns an optical system intended to be held by a frame and worn by a wearer, the optical system comprising a lens, the lens further comprising a metasurface formed by at least a set of nanostructures, at least the lens and the metasurface being designed to achieve an optical system transmission target optical function and an optical system reflective target optical function.

The invention relates to the technical field of lens correction, and discloses an intelligent correction method and system for the optical performance of a functional lens, and the method comprises the steps: obtaining the original data of the lens, and carrying out the preprocessing of the original data of the lens, and obtaining the surface data of the lens; performing surface parameter calculation according to the lens surface data to obtain three-dimensional surface parameters; performing weighted residual calculation according to the three-dimensional surface parameters to obtain a residual matrix; performing spatial correlation analysis according to the three-dimensional surface parameters and the residual matrix to obtain an error region and a normal region; performing compensation analysis according to the residual matrix, the error region and the normal region to obtain a parameter compensation amount; and performing multi-objective optimization according to the parameter compensation amount to obtain an optimal compensation parameter, and correcting the lens according to the optimal compensation parameter. The method has the following effect that the correction accuracy of the optical performance of the functional lens can be improved.

The invention relates to the technical field of optical elements, and discloses a fog display point diffusion optical system and a preparation method thereof, and the preparation method comprises the steps: obtaining user visual parameters, and building a visual behavior probability density model through kernel density estimation; designing the front surface of the lens based on the model, and generating an asymmetric defocus system coupled with a gazing habit; the rear surface of the lens is designed, and the distribution density of a fog display point diffusion unit is cooperatively modulated by the front surface defocusing amount, the fixation probability and the pupil diameter; and finally integrating front and rear surface design to form an optical lens body. According to the method, the asymmetric defocus field on the front surface and the fog display point diffusion field on the rear surface are subjected to collaborative design, and the defocus intensity and the contrast modulation intensity are accurately applied to the effective retina area of the user through the visual behavior probability density model; the technical problem that a traditional out-of-focus lens is fixed in signal and cannot adapt to individual staring habits and physiological parameter changes is solved.

It is proposed a lens intended to be worn in front of or on an eye of a wearer and to provide a first refractive power (Rx) for correcting an abnormal refraction of the eye of the wearer; wherein the lens comprises a refractive area configured to provide the first refractive power (Rx) and a functional area configured to provide an optical function; and wherein on a first zone defined on the lens, more than 5% of the surface of said first zone has a local refractive power ranging from the first refractive power (Rx) minus 0.25 diopter and the first refractive power (Rx) plus 0.25 diopter, and more than 25% of the surface of said first zone covers the functional area.

Optical lens intended to be worn by a wearer An optical lens intended to be worn by a wearer comprising: —a refraction area having a refractive power based on a prescription for said eye of the wearer; —a plurality of optical elements having a transparent optical function of not focusing an image on the retina of the eye of the wearer when the optical lens is worn in standard wearing conditions, —a zone of interest comprising a subset of the optical elements, each optical elements in the subset bearing a cylinder component on its surface, wherein the zone of interest is of at least 50 mm2, and the standard deviation of the orientations of the cylinder axis of each optical element comprised in the zone of interest is smaller than or equal to 15° with respect to a common predefined direction.

The embodiment disclose a wearable augmented reality eyewear system including a frame supporting left and right transparent lenses. A plurality of outward-facing cameras mounted on the frame have overlapping fields of view for capturing real-time images of the environment. A plurality of inward-facing cameras integrated in the frame or lenses detect pupil size, pupil dilation, and gaze direction using infrared imaging. A digital processor analyzes gaze direction and fixation based on virtual grid coordinates, initiates an object or person recognition routine using images from the outward-facing cameras, and compares detected features with records in a database. At least one lens includes an AR projection system embedded therein and configured to superimpose data about the recognized object or person in the user's field of view. An audio speaker positioned near the user's ear outputs related audio. A wireless communication module enables real-time data exchange with a cloud-based platform.

A method for designing a spectacle lens and a related technique thereof, including: a modeling step of dividing a pattern into multiple models with a deviation from a normally worn state of the spectacle lens as decentering, wherein a reference model, decenter model, and tilt model are prepared as the multiple model; a sensitivity calculation step of calculating a decenter and a tilt sensitivity; and a design step of using a base curve value in the vicinity of a balance solution as a base curve of the spectacle lens, wherein a base curve value which is a curvature of a surface in a region where the on-retinal non-convergence region is not provided on an object-side surface is taken as x-axis, and the decenter and tilt sensitivities are taken as y-axis, and an intersection of a plot of the decenter sensitivity and the tilt sensitivity is taken as the balance solution.

The invention discloses a multi-effect ultrastructure composite lens for preventing and delaying myopia, which comprises a lens main body, a functional area is arranged in the lens main body, and the functional area comprises a central optical correction area and an ultrastructure area which are arranged on the inner side. Compared with the prior art, the method has the advantages that the small central optical area is adopted to correct vision, and the prevention and control effect is enhanced. The ultramicro soft light area has prevention and control and visual transition effects. The ultra-micro lenses and the ultra-micro structure ring cylindrical lenses are alternately arranged on the outer side, due to the fact that the area is reduced, the number of the ultra-micro structures in the unit area is increased, the filling rate of the functional area of the whole lens is increased, the ultra-micro structures enable the brain to be not easy to perceive, visual perception is not easy to interfere, and the three ultra-micro structures have the effect of improving visual activity along with eyeball movement of visual activity. Signals entering the eyes are kept in dynamic change all the time, so that the visual experience is further improved while the prevention and control effect and imaging intervention are guaranteed, and long-term wearing is facilitated.

The present disclosure is directed to methods for manufacturing ophthalmic lenses utilizing a freeform process, the method comprising: machining a lens blank, semi-finished lens blank and / or an intermediate ophthalmic lens precursor to form a surface of the spectacle lens with at least a portion of the surface comprising a curvature for the correction of the myopic prescription of the wearer; machining a pattern of a plurality of optical elements and / or spaces therebetween on the surface of the spectacle lens suitable for delivering an effective optical signal to the retinal receptors of a progressive myope to slow, significantly slow, stop and / or shorten / regress the progression of axial eye length growth; and / or polishing the surface of the spectacle lens; wherein, after polishing the spectacle lens, at least one of the plurality of optical elements may have a relative surface elevation change per millimeter interval substantially greater than at least a portion of the prescription surface over a comparable interval. The present disclosure is also directed devices and systems manufactured using the described manufacturing methods.

An optical system is provided. The optical system includes a fixed portion and a first optical assembly. The first optical assembly includes a first movable portion used for holding a first optical element, and a first driving assembly used for driving the first movable portion to move relative to the fixed portion. The fixed portion includes a first frame used for holding a second optical element, the first movable portion is movable relative to the fixed portion, and an image is projected to the second optical element.

The invention relates to the technical field of lenses, in particular to a film for vision correction and a lens, and the film for vision correction is deposited on the surface of a lens substrate and comprises a refractive index matching layer, a refraction compensation layer, an out-of-focus prevention and control layer, a blue light interference prevention layer and a super-hydrophobic wear-resistant layer which are sequentially arranged from bottom to top; the refraction compensation layer covers in a full-aperture mode and forms an optical area used for refraction correction in a central area, and the film thickness of the refraction compensation layer is decreased progressively from the center to the edge; the defocusing prevention and control layer covers the peripheral annular area of the optical area and comprises an annular transition belt and a main body defocusing area extending outwards from the outer edge of the annular transition belt; the out-of-focus prevention and control layer is composed of a ZrO2-epoxy resin compound; the inner film thickness of the annular transition zone is linearly increased from inside to outside, the concentration of the ZrO2 nanoparticles is induced to gradually change through a radial electric field, a refractive index radial gradient is formed, the concentration of the ZrO2 nanoparticles in the main body defocusing zone is constant, and peripheral defocusing is maintained through secondary increase of the film thickness.

A contact lens assembly includes a cup, a dry contact lens that is not for being worn on an eye, a sealing layer removably connected to the cup, and a wetting liquid supply. The sealing layer and the cup jointly form an enclosed space that receives the dry contact lens therein and that does not accommodate any liquid. After at least one of the sealing layer and the cup produces an opening, the cup can receive a wetting liquid from the wetting liquid supply through the opening, such that the dry contact lens is immersed in the wetting liquid to form a wet contact lens that is suitable for being worn on the eye and that has a water content greater than a water content of the dry contact lens.

A novel method for producing a contact lens whereby it is possible to solve at least one problem that becomes an obstacle when equipping a contact lens with a separate component such as an electronic element. When matching a component-supporting mold supporting a component to be embedded with a first mold, performing curing treatment of a first molding material, and thereby obtaining a primary molded article in which the component is inserted, the component-supporting mold is removed while curing of the first molding material is incomplete on the component-supporting mold side. A second mold is subsequently matched with the first mold in which the primary molded article is left, filled with a second molding material, and curing treatment is performed, thereby producing a contact lens as an integrally molded product in which the component is embedded.

The present disclosure generally relates to a lens that provides a stop signal for myopia over a substantial portion of a spectacle lens that is being used by a viewer. The present disclosure relates to an apparatus, method, and / or system for applying a stop signal for eye development using a spectacle lens in combination with an array of microlenses. The present disclosure also relates to an apparatus, method, and / or system for modifying incident light through a spectacle lens that utilizes color cues to slow the rate of myopia progression. The present disclosure relates to an apparatus, method, and / or system for applying a stop signal for eye development using a spectacle lens in combination with a refractive optical element and / or a diffractive optical element that provides conflicting or opposing optical signals at wavelengths between 510 nm and 610 nm.

The invention relates to a portable light apparatus configured to be worn by a user, the portable light apparatus comprising a front frame to house eyeglasses and a pair of side frames connected to the front frame, an operating device having at least a battery and at least one auxiliary electronic part having a light device configured to emit light towards the eyeglasses and / or the user's eyes. Further, the invention relates to a charging case for a portable light apparatus and a control system providing remote control for a portable light apparatus.

The invention discloses a preparation method of a bionic cornea stroma lens for refractive correction, which comprises the following steps: solution preparation: dissolving type I collagen in an acetic acid solution, adding a film aid, fully stirring, and centrifugally defoaming to obtain a type I collagen composite solution; the I-type collagen composite solution is poured into an assembling groove, the curvature radius of titanium metal is set to be 6.8-8.0 mm, the titanium metal serves as a working electrode material, platinum metal serves as a counter electrode material, current parameters are set according to the needed thickness of the lens blank, the density is 3.50-6.50 mA / cm < 2 >, and the thickness of the lens blank is set to be 3.50-6.50 mA / cm < 2 >; a high-transparency cornea embryo material which is uniform in curvature in all directions and similar to human cornea fiber structure arrangement is formed after electrochemical assembly and cross-linking curing, accurate cutting machining is carried out through excimer laser, a concave / convex matrix lens with the needed correction degree is obtained, the correction precision is high after cornea interlayer implantation, and the correction precision is high. And meanwhile, the compound has excellent performance in the aspects of in-vivo stability and biological safety.

A system includes a wearable device and an implantable device. The wearable device includes one or more signal transmitters and is configured to be positioned adjacent to or in contact with a human or animal body. The implantable device includes a signal receiver and is configured to be implanted onto or within the human or animal body. The one or more signal transmitters of the wearable device are configured to transmit the signals through the human or animal body to the signal receiver of the implanted device via a galvanic coupling operable using electro-quasistatic signal transmission. The system also includes a capacitive element positioned on an electrical current flow path of the galvanic coupling between at least one of the one or more signal transmitters and the signal receiver.

The invention provides an optical lens, and relates to the field of myopia prevention and control, and the optical lens comprises a lens body and an optical module. The side part of the lens body comprises a convex surface and a concave surface which are opposite; the optical module comprises at least two of a first optical piece, a second optical piece and a third optical piece which are connected to the side part of the lens body, and the distribution characteristic corresponds to the distribution of fundus visual function cells of a lens wearer so as to provide multiple optical signal stimulation; the first optical part is an optical device with a scattering effect, the second optical part is a multi-point defocusing optical device, and the third optical part is of a continuous cylindrical lens structure. According to the optical lens, the scattering effect, the multi-point defocusing technology and the cylindrical lens structure are integrated, multiple optical signal stimulation can be provided in a high-density visual function cell area close to the light spot center corresponding to fundus visual function cell distribution rules of various people, the lens can adapt to different people, and the myopia prevention and control effect is improved.

A user-wearable examination / visualization / collection system with light enhancement comprising a carrier suitable for the retention of a lighting assembly and a viewing and collection system is presented wherein images or video of objects may be collected under natural (e.g., white) light and / or non-visible light (e.g., IR, UV) conditions, processed and presented to a user on a local display. Further disclosed are lighting assemblies that provide for the light necessary to collect images different lighting conditions and optical filtering that allows for a limitation of the light viewable and collected.

The microstructure lens comprises a substrate, the substrate is provided with a bright vision area, a first optical area and a second optical area, and the first optical area and the second optical area are arranged around the bright vision area; the first optical area is located between the bright visual area and the second optical area and connected with the bright visual area and the second optical area. The bright vision area is used for generating a clear vision signal; the first microstructure array is arranged in the first optical area and is used for being matched with the substrate to provide a visual signal for stimulating the periphery of the retina; and the second microstructure array is arranged in the second optical area and is used for being matched with the substrate to provide at least two different visual signals for stimulating the periphery of the retina. The first optical area provides single-effect stimulation to compensate relative peripheral diopter close to the center of the retina macular, and lens wearing adaptability of a patient is considered; the second optical zone provides multiple-effect stimulation to compensate for gradually increasing relative peripheral diopter around the retina and delay the time of drug resistance generation of the product, thereby enhancing myopia management efficacy and prolonging efficacy time.

Sleep-aiding eyewear that prevents light which inhibits melatonin production from reaching the eye is described. The eyewear that is the object of the present disclosure has improved visibility over other methods of cutting off melatonin-inhibiting wavelengths of light, which enables the user to perform tasks, such as reading and typing, uninhibited. This is achieved in some embodiments using a Bragg grating comprising multiple layers of alternating reflective index material as a surface coating on the lens. This may be combined with lens-tinting, or antireflective coatings, in the eyewear. Furthermore, transition lenses which block melatonin-shifting light when there is a suitable external stimulus, such as blue light from a light emitting diode, are described. The presently described filters are also useful for electronic displays and functional light-transmitting materials.

The invention provides a high-precision dot matrix density cosmetic contact lens development method and system, a medium and a product, and relates to the technical field of cosmetic contact lens production, and the method comprises the steps: obtaining multi-mode fashion data through a crawler technology, and extracting a trend language intention vector from the multi-mode fashion data; based on a pre-trained neural network model, mapping the trend language intention vector into a microscopic physical parameter for defining a cosmetic contact lens pattern to obtain an initial dot matrix parameter set; performing graphical rendering on the initial dot matrix parameter set to obtain a plurality of initial cosmetic pupil dot matrix patterns; simulating the wearing effect of each initial cosmetic contact lens dot matrix pattern on the three-dimensional human eye model through simulation software to obtain a plurality of virtual wearing effect pictures; and determining the initial cosmetic contact lens dot matrix pattern of which the aesthetic evaluation score is greater than a preset score threshold as a final cosmetic contact lens dot matrix pattern. By implementing the method, the limitation of a traditional design element library can be broken, the generation of the cosmetic contact lens pattern is more innovative and diversified, and the innovativeness and the popular integrating degree of the cosmetic contact lens pattern are improved.

The utility model discloses a lens for delaying eye axis growth by using a negative defocus technology, particularly relates to the field of optical spectacle lenses, and aims to solve the problems that myopia of children and adolescents in China is severe, low-age and severe, existing common methods include angle molding, defocus and foggy vision (point diffusion), and the prevention and control efficiency is declined due to the large use of the methods. According to the utility model, myopia can be better prevented and controlled, and the prevention and control efficiency is improved. A composite ring belt design is adopted, the defocusing amount of an aspheric micro lens in a composite ring belt structure is negative defocusing, and the range of the defocusing amount of the aspheric micro lens is-5.0 D-(-6.5 D). While clear vision correction is ensured in an optical central area, the defocusing amount of a ring belt outside the central area is in an asymptotically increasing trend, so that continuous defocusing is formed in a peripheral area, and the visual acuity is improved. And personalized compensation is carried out on the defocusing amount of the field angle to form a continuous myopia defocusing state, so that excessive increase of the ocular axis and the diopter is delayed, and the purpose of controlling myopia is achieved.

A contact lens assembly 100 is disclosed. The contact lens assembly 100 comprises a second lens member 104 located between first and third lens members 102, 106. A structured anterior surface region 110 of the first lens member 102 that defines a diffractive optical element and a posterior surface region 115A of the second lens member 104 together define a first cavity. A structured posterior surface region 112 of the third lens member 106 that defines a diffractive optical element and an anterior surface region 113A of the second lens member 104 together define a second cavity. The posterior and anterior surface regions 115A, 113A of the second lens member 104 do not include a diffractive optical element.

An ophthalmic lens configured to correct and / or treat at least one condition of the eye (e.g., presbyopia, myopia, hyperopia, astigmatism, binocular vision disorders, night vision image quality, and / or visual fatigue syndrome) comprising: a base power profile; and at least one pulse selected to modify the base power profile.

The invention belongs to the technical field of contact lenses, and provides a moisturizing contact lens containing a hyaluronic acid coating and a preparation method of the moisturizing contact lens. The preparation method comprises the following steps: carrying out ultrasonic mixing on a hydrophilic monomer, a siloxane monomer, a cross-linking agent and an initiator, injecting the mixed solution into a contact lens mold, and carrying out polymerization reaction to obtain a contact lens material; mixing the chitosan solution, the shellac acid solution, the hyaluronic acid solution and the vitamin E succinate solution to obtain a hyaluronic acid mixed solution; and soaking the contact lens material in the hyaluronic acid mixed solution, adding a cross-linking agent, curing, and drying to obtain the moisturizing contact lens containing the hyaluronic acid coating. The contact lens disclosed by the invention has excellent moisture retention, good light transmission performance, swelling performance and excellent mechanical property, the wearing comfort is remarkably improved, and the contact lens is suitable for being worn for a long time; the preparation method disclosed by the invention is environment-friendly and easy to industrialize.