76 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.

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.

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 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.

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.

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.

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.

The invention relates to the technical field of modular eye structures, and discloses an intelligent manufacturing robot modular eye structure which comprises a mechanical arm, the inner wall of the mechanical arm is rotationally connected with a rotating arm, the front portion of the rotating arm is fixedly connected with a chamfering block, and the inner wall of the chamfering block is rotationally connected with an output shaft. A rotating rod is fixedly connected to the circumferential surface of the output shaft, an L-shaped clamping plate is fixedly connected to the circumferential surface of the rotating rod, and an L-shaped plate I is fixedly connected to the top of the L-shaped clamping plate. According to the invention, the eye module can synchronously move along with the moving track of the rotating arm, so that the problem of view angle lag caused by static vision can be eliminated; and meanwhile, when the angle of the eye module needs to be adjusted, the observation range and the observation angle of the eye module can be enlarged, and then the view blind area caused to the eye module in the operation process of the rotating arm can be eliminated.

This application provides a pupil recognition method, system, medium, product, and terminal based on center localization. It performs a horizontal gradient transformation operation on distortion-corrected human eye image data to generate eye gradient amplitude image data. Through gradient transformation, it extracts edge features of the pupil and iris regions, effectively separating the pupil edge from complex eye structures such as eyelid occlusion, eyelash projection, and iris pigment spots / crypts, avoiding misidentification of these interferences as pupil edges and improving the accuracy of pupil edge feature recognition. Combining the distortion-corrected human eye image data and eye gradient amplitude image data, it performs a pupil template matching operation based on the Hough circle detection algorithm. By leveraging the edge features of the gradient amplitude image, it enhances the matching accuracy between the pupil edge and the template, effectively ensuring the continuity and integrity of pupil contour recognition, further improving the reliability and accuracy of pupil measurement results.

The utility model discloses a kind of integrated air conditioner outdoor unit installation maintenance and safety device of emergency escape, comprising: escape platform, escape platform and structural column anchoring connection;Structural beam, escape platform is set at the just above of structural beam with predetermined distance interval, and the space between structural beam and escape platform forms air conditioner position;Lifting eye, part of lifting eye is embedded in the inside of structural beam, and lifting eye and the corresponding position of lower escape platform position correspond.This utility model sets up escape platform on structural column, and forms sandwich space with structural beam to form air conditioner position, and embeds lifting eye structure on structural beam, and the part of lifting eye that exposes structural beam corresponds with the escape platform position of next floor, so that safety rope can be fixed by lifting eye, which can be used for installation, cleaning, disassembly and other operations of air conditioner outdoor unit, and can be used for refuge and escape in emergency, to provide effective self-help approach for residents, improve rescue rate.

The relative positions of a first low-reflection layer and a second low-reflection layer are variable in a bendable portion. A main low-reflection structure has, on a surface facing a secondary low-reflection structure, an asperity pattern and a moth-eye structure. The asperity pattern has a sine-wave shaped surface in a sectional view. A single period of a sine wave constituting the sine-wave shaped surface is equal to an integral multiple of the width of a single pixel of a display device in a direction where the asperity pattern is arranged.

The invention provides a model training method, a conversion method, electronic equipment, a medium and a program product, and relates to the technical field of image processing. The model training method comprises the following steps: carrying out pixel-level alignment processing on an eye image of a source mode and an eye structure diagnosis video of a corresponding target mode; selecting key frames in the eye structure diagnosis video of the target mode after alignment processing; taking the aligned eye image of the source mode as a first initial domain, and taking the key frame of the corresponding target mode as a first target domain for training to obtain a first model; and taking the key frame of the target modal as a second initial domain, and taking the eye structure diagnosis video of the target modal after alignment processing as a second target domain for training to obtain a second model so as to obtain an eye dynamic sequence generation model. According to the technical scheme, the static ophthalmologic image of the source mode is converted into the dynamic ophthalmologic video of the target mode, and the method has the advantages of being non-invasive, safe and low in cost.

The invention provides a three-dimensional high-frequency ultrasonic ophthalmic examination device and method, equipment and a medium. The three-dimensional high-frequency ultrasonic ophthalmic examination device comprises a mechanical arm, an ultrasonic probe and a host, wherein the ultrasonic probe is clamped at the tail end of the mechanical arm; in the dragging mode, the mechanical arm moves to adjust the position of the ultrasonic probe; in an imaging mode, the mechanical arm locks the joint so as to keep the position of the ultrasonic probe unchanged; and in the scanning process, the host sends a trigger signal to the ultrasonic probe, so that the ultrasonic probe performs rotary scanning imaging, records the real-time angle of the micro motor, emits an acoustic beam and records an echo signal until the whole scanning process is completed. And after scanning is finished, signal processing and image reconstruction are carried out. According to the invention, scanning and reconstruction of eyeballs are realized by using a linear array ultrasonic probe rotation mode. The result can visually present the spatial form of the eye structure and the relationship between the eye structure and surrounding tissues, the limitation that traditional two-dimensional ultrasound depends on doctor imagination splicing is changed, and the diagnosis precision of diseases such as glaucoma, intraocular tumors and complex retinal detachment is improved.

This invention belongs to the field of biomimetic robot technology, specifically disclosing a three-degree-of-freedom parallel biomimetic eye actuator based on flexible artificial muscle actuation. It includes a hemispherical biomimetic eye structure, on which a three-degree-of-freedom flexible body actuation structure is mounted. At the end of the three-degree-of-freedom flexible body actuation structure furthest from the hemispherical biomimetic eye structure, there is a base platform connected to the hemispherical biomimetic eye structure via a ball joint. A trolley structure that cooperates with the three-degree-of-freedom flexible body actuation structure is mounted on the base platform. This invention uses a universal ball joint to connect the hemispherical biomimetic eye structure to the base platform, and coordinates with the flexible eye muscle of the three-degree-of-freedom flexible body actuation structure for actuation. By adjusting six artificial muscles (rectus and oblique muscles), the biomimetic eye using this actuator can achieve yaw, pitch, and roll motion postures, meeting the requirements of a compact structure, high precision, low noise, and high motion flexibility.

A method for manufacturing anti-reflective optical glass and its products, wherein the method for manufacturing anti-reflective optical glass involves having several diamond-cut lines on a carrier, and then centrifugally and elastically polishing and grinding the surface of the optical glass with the diamond-cut lines to create moth-eye structure grooves on the surface of the optical glass, thereby reducing light reflection and increasing light transmittance.