94 results about "Eye structure" patented technology

The invention relates to the technical field of ophthalmology medical treatment, in particular to an excimer laser cutting parameter optimization method for presbyopia correction, which comprises the following steps: (1) collecting eye data of a patient: collecting eye structure data and vision information of the patient; (2) establishing a personalized eye model: constructing a personalized eye three-dimensional model of the patient based on the collected eye data; (3) determining an optimization objective function: comprehensively considering the correction effects of far vision, near vision and middle vision and the risk of postoperative complications, and determining the optimization objective function; and (4) constructing a cutting parameter constraint condition: setting the cutting parameter constraint condition according to the eye condition of the patient. The method aims at solving the problems that in the prior art, an excimer laser cutting parameter optimization method for presbyopia correction is insufficient in the aspects of individuation, accuracy, comprehensiveness, safety and the like.

The invention discloses a single-incision one-step method TICL implantation method based on a 3D navigation system, and relates to the technical field of medical device.The single-incision one-step method TICL implantation method comprises the steps of S1, data collection, S2, three-dimensional modeling, S3, incision path planning, S4, operation implementation, S5, single-incision TICL implantation and S6, postoperative evaluation.Ocular optical data of a patient is collected through ophthalmology imaging equipment, the three-dimensional modeling, the incision path planning, the operation implementation, the single-incision TICL implantation and the post-operation evaluation are carried out, and the three-dimensional modeling, the three-dimensional modeling, the incision path planning, the operation implementation, the An individualized eye structure model is constructed in combination with a three-dimensional modeling technology, accurate fusion of astigmatism axial direction and cornea morphological parameters is realized, an incision path is planned by using a dynamic optimization algorithm and a genetic algorithm, key anatomical structures such as an iris root and a ciliary body are avoided while the incision length is minimized, operation wounds are reduced, and the operation efficiency is improved. The astigmatism correction angle is automatically optimized through a weighted average formula, manual errors are effectively reduced, and it is ensured that operation planning better fits anatomical features of a patient.

A surgical guidewire device includes an outer tube and a guide needle. The outer tube has a needle tip formed at a tube distal end of the outer tube. The guide needle is movably disposed in the outer tube and has a needle eye structure. When the surgical guidewire device is in use, a suture extends through the needle eye structure, and is carried through the outer tube along with the needle eye structure as the guide needle is moved relatively toward the tube distal end and then away from the outer tube.

Low-cost, portable in-vivo confocal ophthalmoscopes (PICOs) and associated methods are described that are capable of producing microscopic images of the anterior segment of the eye and the external eye structures enabling visualization of cellular and some sub-cellular structures. Some of the features of the described ophthalmoscopes include the use of a non-contact objective lens in conjunction with a grating-based, scan-less confocal microscopy approach, integration of the capability of imaging the external eye and anterior segment en face, integration of a display as part of the microscope, increased signal level and imaging speed, reduction of detected specular reflection, and attachment methods onto a slit lamp biomicroscope or for hand-held use.

The invention provides a multi-chain bidirectional load-bearing suction anchor foundation structure which comprises an annular barrel wall, a barrel top cover plate is arranged at the top of the annular barrel wall, an in-barrel reinforcing structure is arranged in the annular barrel wall, a plurality of anchor eye units are arranged on the outer side of the annular barrel wall, and each anchor eye unit comprises anchor eye structures symmetrically arranged on the annular barrel wall. The anchor eye structure in each anchor eye unit is of a double-anchor-eye structure or a single-anchor-eye structure, and the included angles between the adjacent anchor eye structures on the annular barrel wall are equal. The invention provides a one-anchor multi-chain bidirectionally-loaded shared anchoring foundation, the bearing capacity of the anchoring foundation is effectively exerted, the cost of a mooring system is reduced, and a new choice of the anchoring foundation is provided for floating type wind power.

The present disclosure relates to the technical field of image processing. Provided are a model training method, a conversion method, an electronic device, a medium, and a program product. The model training method comprises: performing pixel-level alignment processing on a source-modality eye image and a corresponding target-modality eye structure diagnostic video; selecting a key frame from the target-modality eye structure diagnostic video which has been subjected to alignment processing; using, as a first initial domain, the source-modality eye image which has been subjected to alignment processing, using the corresponding target-modality key frame as a first target domain, and performing training to obtain a first model; and using the target-modality key frame as a second initial domain, using, as a second target domain, the target-modality eye structure diagnostic video which has been subjected to alignment processing, and performing training to obtain a second model, so as to obtain an eye dynamic sequence generation model. By means of the technical solution of the present disclosure, a source-modality static ophthalmic image is converted into a target-modality dynamic ophthalmic video; and the present disclosure has the characteristics of non-invasiveness, safety and a low cost.

Systems, devices and methods are provided that provide assistance in selecting appropriate interventions for treatment of disease and injury to the eye. Systems of the inventive concept provide cloud-based processing and storage of clinical and patient-specific data, which can provide treatment recommendations and projected outcomes to a practitioner using a local device. Systems, devices, and methods can generate interactive physiomechanical models of the eye of a specified individual, which are derived measurements of mechanical properties of structures of the eye. The physiomechanical model is interactive, and can be used to emulate the effects of one or more medical interventions in the eye in order to implement an optimized treatment plan for the individual.

The invention discloses a high-vibration-resistant blind hole fisheye structure, and relates to the technical field of connectors, the high-vibration-resistant blind hole fisheye structure comprises a fisheye terminal, the fisheye terminal is provided with an insertion part, a shoulder part, a rod part and a tail part, and the insertion part, the shoulder part, the rod part and the tail part are sequentially arranged in a linear crimping manner along a single direction; wherein the insertion part is sequentially composed of a pre-insertion area, an insertion area, a transition area, a mechanical holding area and a fisheye strength area, the pre-insertion area is used for providing a guiding effect to insert the PCB, the insertion area forms an acting force, the transition area is used for connecting the insertion area and the mechanical holding area, the mechanical holding area forms an anti-vibration effect, and the fisheye strength area is used for providing terminal strength. The insertion area, the transition area and the mechanical holding area form a fisheye groove with an anti-vibration effect; guide grooves are formed in the inner walls of the fisheye grooves, and elastic supporting assemblies for keeping the distance between every two adjacent guide grooves are arranged between the adjacent guide grooves. According to the invention, the blind hole fisheye structure has good guidance quality, forms retention, insertion and anti-vibration acting forces, and is suitable for a high-vibration environment.

Provided are a multilayer film having excellent hydrophilicity and photocatalytic properties, an optical member, an image pickup apparatus, and a method for manufacturing the multilayer film. This multilayer film is provided on a substrate, and is provided with: a silicon oxide layer having a moth-eye structure on the surface thereof and exhibiting hydrophilicity; and a titanium oxide layer disposed in contact with the silicon oxide layer and exhibiting a photocatalytic function.

A fisheye terminal structure comprises a butt joint piece, a limiting piece and a plug connector. And the butt joint piece is arranged to be electrically connected with a terminal of a counter electric connector. The limiting piece is connected to the butt joint piece, has the width larger than the diameter of the insertion hole and abuts against the circuit board. The plug connector is connected to the limiting piece, is provided with a fisheye structure and is arranged to be inserted into a plug hole of the circuit board, the fisheye structure comprises a plug part, a connecting part and a deformation abutting part, the plug part and the connecting part are arranged at the two opposite ends of the deformation abutting part respectively, the connecting part is connected to the limiting piece, and the deformation abutting part is connected to the limiting piece. The two arc-shaped stress deformation bodies of the deformation abutting part are connected with each other to form a symmetrical structure with a fisheye hole in the center. The joint of the inserting part and the arc-shaped elastic deformation body has a first curvature radius, the part, close to the inserting part, of the arc-shaped stress deformation body has a second curvature radius, the part, close to the connecting part, of the arc-shaped stress deformation body has a third curvature radius, the second curvature radius is larger than the third curvature radius, and the third curvature radius is larger than the first curvature radius.

Disclosed herein are systems and methods for the detection of neurological condition in a subject. The disclosed methods and systems provide, in certain embodiments, providing optical stimuli to a subject via a graphical display, capturing, using a camera, a plurality of images of eyes of the subject when the optical stimuli is provided to the subject via the graphical display, determining, by a processor, an occurrence of one or more ocular responses of structures of the eyes based on the plurality of images, identifying, by the processor, an occurrence of a neurological condition in the subject based on the one or more ocular responses, and providing the identification of the occurrence of the neurological condition to the subject via a graphical user interface.

The invention belongs to the technical field of deep learning and medical image processing, and particularly relates to a method for identifying eyelid retraction and eyeball dyskinesia for TAO, which solves the technical problems in the background technology and comprises the following steps: acquiring facial appearance images of first eye positions and rotating eye positions of multiple patients; eye cutting is carried out on all the facial appearance images to obtain a first eye position data set and a rotating eye position data set, eyelid retraction and eyeball dyskinesia conditions of all the data are marked, and a drawing scale is recognized; a semantic segmentation model of the eye structures is constructed, semantic segmentation is achieved, and coordinates of all the eye structures are obtained; constructing an auxiliary recognition model, and recognizing eyelid retraction and eyeball dyskinesia of the eye structure in combination with a drawing scale; and training the semantic segmentation model, carrying out semantic segmentation on the eye picture, then carrying out quantitative identification on eyelid retraction and eyeball dyskinesia of the eye picture by using the auxiliary identification model, and outputting an auxiliary identification result.

The utility model discloses a kind of moisture-absorbing jacquard fabrics, the fabric is double-sided weft-knitted fabric, the reverse of the fabric is designed as concave grid eye structure and concave-convex texture, the weaving structure of fabric adopts rib pair needle configuration, the loop vertical of fabric front face protruding is woven into by lower needle of needle cylinder, the loop vertical of fabric reverse protruding is woven into by upper needle of needle disc;The front of the fabric forms several loops, and the loops form the concave grid eye structure on the reverse of the fabric.The fabric reverse is concave-convex texture effect, the concave-convex texture formed by groove-like structure and the concave grid eye structure, not only can quickly absorb, export sweat, promote sweat evaporation, avoid a series of problems caused by sweat retention, but also can store still air, improve the warmth of clothes, based on special weaving structure and surface effect, the fabric can balance wearer's warmth demand and moisture-absorbing demand, suitable for making spring and autumn season sportswear.

The invention discloses an ultraviolet lens based on a lobster eye structure. The ultraviolet lens comprises a square lens body; the lens body is composed of one or more square lenses. Wherein the square lens is in the form of a micropore channel plate and comprises a plurality of micropore channels. The ultraviolet lens based on the lobster eye structure not only has the advantages of large field of view and zero chromatic aberration, but also can meet the requirements of light weight and miniaturization; meanwhile, the field of view of the ultraviolet lens can be further expanded through spherical splicing.

The present application relates to a kind of point light source collection systems, it is characterized in that, including: drive source, the drive source is configured to be aimed at the beam current to target material, to produce divergent light at light emitting point;And transmission collection element, the transmission collection element is configured to the divergent light from the target material is collected and converges;Wherein, the transmission collection element includes the lobster eye structure with hole, and wherein the collection solid angle of the transmission collection element is in the range of 2-5.

The present invention provides a cleaning sheet that offers excellent foreign matter removal performance without the concern of adhesive residue. [Solution] In one example, the cleaning sheet 1 has a base material 2 and a resin layer 3 provided on the surface of the base material, and a moth-eye structure is formed in the resin layer 3. The water contact angle of the surface on which the moth-eye structure is formed may be 25° or less, or 110° or more, and is not particularly limited.

An ophthalmic device for treating an eye includes a laser source, a scanner system and an application head with a focusing optic and a patient interface for docking the application head onto the eye. Moreover, the ophthalmic device includes a measurement system for optically capturing eye structures when the application head is docked to the eye and a circuit which is configured to determine reference structures of the eye, which are arranged in ring-shaped fashion about the center axis of the anterior chamber of the eye, from the captured eye structures and to arrange a defined three-dimensional treatment model with respect to these reference structures in order to process a three-dimensional treatment pattern in accordance with the arranged three-dimensional treatment model in the eye.

The utility model provides a combined eye structure capable of setting patterns based on lens wide-angle imaging. The combined eye structure comprises a shell, a convex lens, a bottom plate fixing piece and a screen. According to the combined eye structure capable of setting the pattern based on lens wide-angle imaging, a convex lens imaging principle is applied to form an eye structure expression mode, so that images of a screen can be clearly imaged in a large range, a great observation angle is provided for viewing from the outer side, and wireless communication, data storage and other modules are added, so that the image can be conveniently and quickly set. According to the utility model, screen content can be set or replaced more conveniently, a combined connecting groove is added according to a connecting mode, connection is more convenient when a plurality of eyes need to be combined, and the combined connecting groove is designed based on a convex lens imaging principle that an object image is a virtual image which is amplified on the same side within one time of focal length of a convex lens, so that the eyes can be orthogonally combined and arranged at will; modularized connection such as a screen assembly and an imaging assembly is independently designed for the maintenance problem, maintenance and replacement are convenient, and the practicability and flexibility of the device are improved.

A fly-eye lens group, a light source device, and a projection apparatus. The fly-eye lens group includes: a first fly-eye lens, a second fly-eye lens, and a third fly-eye lens. The first fly-eye lens is parallel to the second fly-eye lens, the first fly-eye lens is perpendicular to the third fly-eye lens, a double fly-eye structure is formed by the first fly-eye lens and the second fly-eye lens, and the third fly-eye lens and the first fly-eye lens also form a double fly-eye structure. The fly-eye lens group is used for homogenizing incident first excitation light, excited light, and second excitation light.

A multilayer film that is provided on a substrate includes: a silicon oxide layer that has a moth eye structure on a surface thereof and exhibits hydrophilicity; and a titanium oxide layer that is disposed in contact with the silicon oxide layer and exhibits a photocatalytic function.

In certain embodiments, a system for detecting an intraocular lens (IOL) in an image of an eye includes an imaging system and a computer system. An imaging system generates an image of the eye. The eye has a plurality of structures, including IOLs. The computer system receives an image of the eye from the imaging system and detects one or more Purkinje images in the image of the eye. The Purkinje image includes reflections from the eye structure. The computer system uses the Purkinje image to detect one or more surfaces of the IOL and determines the location of the IOL from the surfaces of the IOL.

The present invention belongs to the technical field of optoelectronic devices, and particularly relates to a compound-eye structure flexible infrared detector, a preparation method thereof, and an application. In the present invention, a two-dimensional semiconductor layer and a zero-dimensional semiconductor layer which are stacked form a low-dimensional semiconductor heterojunction. By utilizing the large Young's modulus and high stability under stress of the low-dimensional semiconductor heterojunction, the stability performance of the flexible detector is improved; through effective coupling with a curved micro-lens, a compound-eye structure flexible infrared detector with high stability, wide-spectrum detection, large linear dynamic range, and high sensitivity to moving targets is obtained.

To provide an image processing method for analyzing choroidal blood vessels.SOLUTION: The method includes a step of acquiring an OCT image of a subject's eye by optical coherence tomography (OCT), a step of extracting a region other than a structure of the subject's eye in the OCT image, and a step of generating a first display screen in which position information on a scan position for acquiring the OCT image is superimposed on the region.SELECTED DRAWING: Figure 10

The invention discloses vehicle-mounted charging integrated equipment with an aerial imaging function, and relates to the technical field of charging equipment, and the vehicle-mounted charging integrated equipment comprises an adjusting mechanism, a detection mechanism, a display mechanism and a charging mechanism. According to the device, the anti-peeping requirement of a user is guaranteed from multiple dimensions, a defensive line is built for information safety of the user, the anti-peeping interlayer simulates a moth eye structure, light only penetrates through the anti-peeping interlayer in the vertical direction through surface nanoscale protrusions, images can be seen clearly from the front face, light on the side face is scattered, other people cannot peep the images, privacy is effectively protected, the side edge of the protective cover can block the side peeping sight, and the anti-peeping effect is good. An infrared emitter on the outer surface wall is matched with a camera and is used for accurately judging information such as the watching angle of a user, an auxiliary adjusting mechanism enables an image to always directly face the user, an angle sensor monitors angle changes in real time, accurate adjustment ensures that the image directly faces the user, side peeping is prevented, and the user can enjoy high-quality visual experience at ease; and information leakage does not need to be worried.

The invention discloses an analogy modeling method and a delamination stress calculation method for an eye-shaped structure formed when an optical fiber is implanted into a carbon fiber composite material, and the method comprises the steps: obtaining the eye-shaped structure formed when the optical fiber is implanted into the carbon fiber composite material through a microscopic observation technology, and extracting the length-diameter ratio of the eye length to the diameter of the implanted optical fiber in the eye-shaped structure through a computer vision technology; constructing an optical fiber-carbon fiber composite material eye-shaped structure analogy finite element model by utilizing the determined length-diameter ratio, and converting the actual process of implanting the optical fiber into the carbon fiber into a numerical model; normal stress and shear stress are calculated through a finite element simulation analysis method, and prediction of delamination of a structure with a certain length-diameter ratio is completed by using a fracture criterion in fracture mechanics; according to the method, the influence of the optical fiber packaging size, the winding pre-tightening force and the interface resin enrichment structure on stress distribution is comprehensively considered, the influence of optical fiber implantation on the structural performance of the carbon fiber composite material can be quantitatively evaluated, and the structural integration reliability and the design efficiency when the intelligent carbon fiber material is embedded into the optical fiber sensor are effectively improved.

The present invention discloses a backlight module, which includes three light-emitting elements, a reverse prism lens, and a light guide assembly. The light guide assembly is disposed opposite to the reverse prism lens, and the light guide assembly includes a first light guide plate, a second light guide plate, and a third light guide plate. The first surface of the first light guide plate is located on the side facing away from the reverse prism lens. A first concave eye structure is formed on the first surface, and a connection line between two first eye corners of the first concave eye structure forms a first major axis. The second surface of the second light guide plate is located on the side facing away from the reverse prism lens. A second concave eye structure is formed on the second surface, and a connection line between two second eye corners of the second concave eye structure forms a second major axis. The third surface of the third light guide plate is located on the side facing away from the reverse prism lens. A third concave eye structure is formed on the third surface, and a connection line between two third eye corners of the third concave eye structure forms a third major axis. The positive projections of the second major axis and the third major axis on the first surface are inclined toward opposite sides of the reference direction respectively.

This invention belongs to the field of bionic robotics technology, specifically disclosing a bionic eye based on a two-degree-of-freedom parallel mechanism driven by artificial muscles. It includes a two-degree-of-freedom flexible driving parallel mechanism with a bionic eye structure on it. The bionic eye structure includes a flexible eyeball. The two-degree-of-freedom flexible driving parallel mechanism includes symmetrically arranged rectus muscle flexible bodies and rectus muscle ties connected to the flexible eyeball. The end of the rectus muscle flexible body has a common tendon ring platform that cooperates with the rectus muscle ties. This invention, by using a ball-joint connected bionic eye structure, combined with the four artificial muscles of the rectus muscle flexible body in the two-degree-of-freedom flexible driving parallel mechanism, enables the bionic eye to possess two movement postures: yaw and pitch. By conforming to the physiological structure and main movement patterns of the human eyeball, and through the stepless adjustment of the rectus muscle flexible body by the rectus muscle ties, precise two-degree-of-freedom adjustment of the bionic eye can be achieved.

The invention relates to the technical field of visual sensors, and discloses an intelligent compound eye visual sensor and a control method thereof.The intelligent compound eye visual sensor comprises an annular shell, a plurality of sub-visual modules evenly and annularly distributed in the annular shell and a lens visual angle adjusting module rotationally arranged on the annular shell; the lens visual angle adjusting module comprises an annular lens plate and a plurality of deflection lenses rotationally arranged on the annular lens plate, and the deflection lenses are used for deflecting the observation direction of the sub-vision module. Visual recognition is completed through the small-size compound eye recognition structure, the industrial robot is installed on the industrial robot, the stroke range of the industrial robot cannot be affected, meanwhile, the observation visual angle can be greatly avoided through recognition completed through the compound eye structure, and the whole sensor achieves comprehensive and clear observation; a more accurate front effect can be achieved on visual identification control of the industrial robot, and a comprehensive protection effect can also be achieved on the sub-visual modules.

To provide systems, devices and methods that provide assistance in selecting appropriate interventions for treatment of disease of and injury to the eye.SOLUTION: Systems 100 provide cloud-based processing 140 and storage of clinical data and patient-specific data, which can provide treatment recommendations and projected outcomes to a practitioner using a local device. Systems, devices and methods can generate interactive physiomechanical models of the eye of a specified individual, which are derived from measurements of mechanical properties of structures of the eye. The physiomechanical model is interactive, and can be used to emulate effects of one or more medical interventions in the eye in order to implement an optimized treatment plan for the individual.SELECTED DRAWING: Figure 1