33 results about "Artificial Eyes" patented technology

The invention discloses a side defrosting air port arrangement checking method, which relates to the technical field of automobiles, and comprises the following steps: S1, inputting modeling data including an artificial eye ellipse, an outside rear-view mirror and front door glass; s2, a side defrosting and blowing target area is determined, specifically, the connecting line of the center of the outside rear-view mirror and the center of the dummy eye ellipse forms a curved surface along the direction of the connecting line and the tangent line of the dummy eye ellipse intersecting with the outer contour line of the outside rear-view mirror, the curved surface and the front door glass form an intersecting line area, and the intersecting line area is the side defrosting and blowing target area; s3, determining an airflow drop point: preliminarily determining the airflow drop point, analyzing and verifying the defrosting or demisting effect, and correcting the target blowing direction and the airflow drop point; s4, determining the blowing direction; and S5, the effective area of the side defrosting air opening is determined. According to the method, the ellipse of the artificial human eye and the contour line of the outside rear-view mirror form the curved surface, the intersecting line area of the curved surface and the front door glass serves as a side defrosting blowing target area, optimization design of air opening arrangement is achieved through simulation and correction, and the performance requirement of side defrosting is met.

The invention discloses a tablet type simulation eye which comprises an eyeball assembly, an up-down rotating assembly and a left-right rotating assembly. The eyeball assembly comprises an eyeball body, a ball head seat, a first ball head, two second ball heads and a ball head cover, the eyeball body is fixed on the ball head seat, three ball head holes are formed in the surface of the ball head seat, the first ball head and the two second ball heads are located in the three ball head holes respectively, and the front end of the first connecting rod penetrates through the ball head cover and is connected with the first ball head; the two second connecting rods are parallel, and the front ends of the two second connecting rods respectively penetrate through the ball head cover and are connected with the two second ball heads; according to the invention, the first ball head and the second ball head are jointly clamped by using two pressing piece type structures of the ball head seat and the ball head cover, so that compared with a traditional buckle type structure, the first ball head and the second ball head can be thoroughly prevented from falling off; moreover, due to the structure, the first ball head, the second ball head, the ball head seat and the ball head cover can be made of metal materials, so that the ball head is more durable, higher in size precision and suitable for batch production.

The invention relates to an artificial eye lens (1) having at least one optical part (2) which has a front side (3) and a rear side (4) opposite the front side (3), wherein the optical part (2) has at least one base lens body (10), which has a number n, where n is greater than or equal to 2, of base lens body foci (BFN; BFI; BFF), wherein the artificial eye lens (1) has a transmission filter system (12) comprising at least one transmission filter (16, 17, 18) which is optically operatively connected to the base lens body (10), wherein at least one base lens body focus (BFN; BFI; BFF) has chromatic aberration and, depending on the chromatic aberrations thereof, a number m, where m is greater than zero and less than n, of eye lens foci (AF1, AF2) of the artificial eye lens (1) is formed by the transmission filter system (12).

The invention relates to an artificial eye optical system. The artificial eye optical system comprises an optical acquisition assembly and a signal sensing assembly, the optical acquisition assembly comprises a corneal lens group, an aperture diaphragm and a conventional lens group which are sequentially arranged from an object side to an image side; external light is transmitted to the signal sensing assembly through the optical acquisition assembly; the corneal lens group has negative focal power; the conventional lens group comprises a first lens group, a second lens group, a third lens group, a focusing lens group and a spectroscope group; the first lens group, the second lens group and the third lens group all have positive focal power; the focusing lens group comprises a liquid lens and is used for adjusting focal power; the spectroscope group comprises a beam splitter prism and is used for carrying out beam splitting treatment on incident light; the signal sensing assembly is arranged on a light path formed by the optical acquisition assembly and is used for receiving light transmitted by the optical acquisition assembly; on the basis, not only can the physiological structure of human eyes be simulated, but also the human eyes can be simulated to comprehensively perceive various information in a visual field range, and comprehensive measurement of the display quality of the XR equipment is realized.

A latency time determination method and apparatus, an electronic device, and a storage medium. The method is used for measuring the latency time of eye tracking in an XR device to be measured. The method comprises: receiving output information of a sensor, and determining, on the basis of the output information, a first moment at which an artificial eye moves to a preset position, wherein the output information is used for representing actual movement information of the artificial eye; determining a moment at which a synchronization signal is received as a second moment, wherein the synchronization signal is a signal outputted when said XR device determines, by means of an eye tracking module, that the artificial eye has moved to the preset position; and determining a first latency time on the basis of the first moment and the second moment, capturing, by means of the sensor, a time point at which the artificial eye moves to the preset position, and capturing a time point at which the synchronization signal is generated when the eye tracking module determines that the artificial eye has moved to the preset position. Thus, the latency from the actual occurrence of an eye movement event to the detection of the eye movement event by said XR device by means of an algorithm is accurately determined, so as to determine a performance indicator of said XR device.

The utility model relates to the technical field of warp knitting machines, and discloses a defective cloth detection device of a warp knitting machine, which comprises a laser broken yarn monitoring device controlled by a warp knitting machine control cabinet and a light auxiliary device for assisting artificial eye detection, the light auxiliary device comprises a strip-shaped lamp and a lampshade, the strip-shaped lamp is fixedly connected with the lampshade, and the light auxiliary device is connected with the warp knitting machine control cabinet. The lampshade is fixed with the warp knitting machine box body; the lampshade comprises an inclined upper plate, a long-strip-shaped lamp fixing side plate and a horizontal lower plate. The lampshade is of an integrated bent structure. And the inclination angle of the inclined upper plate is 40-60 degrees. The laser broken yarn monitoring device is arranged below the horizontal lower plate and fixed to the warp knitting machine rack. According to the utility model, through combination of automatic laser broken yarn monitoring and artificial eye detection secrecy, the photo-assisted device for assisting artificial eye detection is simple in structure, low in cost and very good in use effect, and the combination of the two can effectively improve the weaving quality, so that the production cost is reduced.

The present invention relates to an automatic eye prosthesis extraction and disinfection device, belonging to the technical field of medical devices, including a protective eye frame. The protective eye frame is divided into an eye disinfection area, a partition area, and an eye prosthesis disinfection area. A controller is connected and arranged outside the protective eye frame to control the overall device. By proposing an automatic eye prosthesis extraction and disinfection device that simultaneously realizes automatic and precise extraction of the eye prosthesis and performs partition disinfection and anti-inflammatory treatment on the eye prosthesis and the eye, through fully automatic and precise recognition of the eye prosthesis for extraction operation, it is beneficial to avoid problems such as secondary infection and inconvenient operation caused by accidental touch during manual operation. By setting partition disinfection and anti-inflammatory treatment, it is beneficial to precisely perform specific disinfection and cleaning on both the eye prosthesis and the eyeball at the same time, ensuring the disinfection effect and greatly avoiding the possibility of infection.

Disclosed in the present invention is an optical quasi-three-dimensional space converter, which is capable of converting a three-dimensional space into a large number of position-fixed two-dimensional real images having different object-image distance-related parameters. The optical quasi-three-dimensional space converter comprises a variable-focus telephoto lens, a short-focus micro-lens array and an object-image distance-related parameter adjuster; one of two lenses is used for receiving light from an object side to form an intermediate image, and the other is used for converting the intermediate image into a virtual image or a real image in a three-dimensional space; an intermediate image horizontal flipper performs left-to-right flipping on the intermediate image in a horizontal direction for real-image space conversion; and the object-image distance-related parameter adjuster is used for adjusting the focal length of the variable-focus telephoto lens, the focal length of the short-focus micro-lens array, the focal length of a camera lens, and relative positions between the lenses. The optical quasi-three-dimensional space converter in the present invention can be used for wide-field-of-view three-dimensional photographic cameras, wide-field-of-view three-dimensional projectors for naked-eye observation, three-dimensional optical processing machines, artificial eyes, etc.

The present invention provides a device for measuring large-field imaging of an artificial eye. A medium tank is provided at the upper end of the posterior chamber of the artificial eye. A light-transmitting hole is provided on the side wall of the posterior chamber of the artificial eye, and an artificial cornea and an artificial lens are respectively and hermetically installed in the light-transmitting hole. The medium tank is filled with a liquid medium. The input end of the artificial retina detector is located in the liquid medium, and the periphery of the artificial retina detector is fixedly installed at one end of a support rod. The other end of the support rod is installed on a displacement platform, and the displacement platform can drive the artificial retina detector to displace through the support rod. The lower end of the displacement platform is fixedly installed on the upper end of a substrate, and a support and a light source are respectively arranged at the lower end of the substrate. The device for measuring large-field imaging of an artificial eye according to the present invention can achieve the detection of large-field imaging of the artificial eye. The detector of the artificial retina is waterproofed, so it can be placed in the waterproof liquid of the artificial human eye, thereby approaching the actual imaging of the human eye to the greatest extent.

The invention provides a normal eyeball motion trail capturing method and system, a terminal and a medium, which are used for controlling motion of a preset image in an artificial eye piece display device, and comprise the following steps: acquiring normal eyeball image data in real time based on an image acquisition device; preprocessing the normal eyeball image data; extracting features of the preprocessed image data to obtain eyeball feature points; and performing continuous frame analysis on the preprocessed image data by adopting a feature point matching method so as to obtain movement track information of normal eyeball feature points. According to the invention, through carrying out feature point extraction on normal eyeball image data, carrying out feature point matching analysis, only obtaining motion track information of normal eyeball feature points, and separating motion information from eyeball images, colors, brightness and other data, collected and transmitted data is simplified, the collected and transmitted data volume is reduced, signal delay is reduced, and the accuracy of the data is improved. Therefore, the synchronous movement of the preset image in the artificial eye piece display device is realized.

This utility model discloses a false eyelash, comprising a polyester mesh, a first adhesive layer, and one or more hair units composed of a plurality of hair materials. The polyester mesh and the hair units are fixedly connected together by the first adhesive layer. The false eyelashes of this utility model, while maintaining the softness of the material when the polyester mesh and hair units are fixed together by the first adhesive layer, can better conform to the skin and will not have the ends of the polyester mesh exposed due to the curvature of the eye. Furthermore, its color is close to human skin tone, making it difficult to detect that it is an artificial eyelash.

The invention provides a multifunctional artificial eye seat with polar radiation aperture distribution and a preparation method thereof, and belongs to the technical field of biomedical materials. The artificial eye seat is a porous spherical or ellipsoidal stent taking trace copper doped zinc melilite biological ceramic as a main component. The internal micropores are mutually communicated curved surface pore units, the pore diameters of the micropores are radially expanded from one end of the spherical surface to the opposite side in a macropore-mesopore-micropore gradient layout, a polar radiation pore diameter distribution three-dimensional bracket model is printed by adopting photocuring ceramic, and then the polar radiation pore diameter distribution three-dimensional bracket model is cleaned, dried and sintered to form the polar radiation pore diameter distribution three-dimensional bracket; the artificial eye seat gives consideration to the anatomical physiological structure of the orbit, the surface of the macropore area is attached to the deep soft tissue of the orbit, and the micropore area faces the ocular surface, so that vascularized soft tissue ingrowth is efficiently promoted, infection is durably resisted, common risks such as displacement and exposure of the artificial eye seat are effectively overcome, and the artificial eye seat has good application value in orbit reconstruction and reshaping.

According to the orbital tissue segmentation method and system provided by the invention, an orbital CT image of a meaning ocular table is obtained, and the interior of the meaning ocular table comprises a metal implant; the feature reconstruction is performed on the orbit CT image containing the metal implant to weaken the interference of the metal artifacts, and the target autologous anatomical structure is segmented in the metal artifact influence area in combination with the artificial eye table information and the preset anatomical relationship, so that the interference of the metal artifacts on the segmentation is effectively solved, and the segmentation accuracy is improved. The method has the advantages of effectively weakening the interference of metal artifacts on the autologous anatomical structure segmentation in the orbit CT image and improving the segmentation accuracy.

The utility model relates to the technical field of medical instrument inspection and detection equipment, in particular to a fundus camera inspection tool with a rapid clamping mechanism. The face support bracket plate is arranged perpendicular to the base mounting plate, the artificial eye bracket assembly is detachably connected to the face support bracket plate and used for testing, and a mounting opening matched with the artificial eye bracket assembly is formed in the face support bracket plate. The artificial eye bracket assembly comprises a connecting seat connected with the face support bracket plate, an eye simulation seat arranged above the connecting seat, two fundus camera simulation eyes inserted into the eye simulation seat, and a longitudinal connecting beam body fixedly connected between the connecting seat and the eye simulation seat; and the connecting seat is provided with a quick clamping mechanism which is used for quickly assembling and disassembling the face support bracket plate. The problem that the position of the inspection tool cannot be adjusted on the fundus camera is solved.

The utility model relates to the technical field of simulation toys, in particular to a simulation eye structure which is used on a simulation toy and comprises an eyeball, an eyelid piece and a fixing assembly, the eyeball is in positioning connection with the fixing assembly, and the eyelid piece is arranged on the fixing assembly in a sleeved mode and at least wraps part of the eyeball. When the fixing assembly is connected with the simulation toy, at least part of the eyelid piece is exposed out of the simulation toy, and the technical problems that in the prior art, an eyelid structure is prone to falling off, and production and manufacturing procedures are tedious are solved.

The invention relates to the technical field of specimen manufacturing, in particular to a safe manufacturing process of a small rodent high-fidelity ecological specimen. Comprising the following steps: taking a mouse corpse, and fixing the mouse corpse on a mouse dissecting disc; dissecting the mouse, taking out organs, cutting off mouse tongues, and releasing muscles; putting the anti-corrosion powder into released muscles of the abdominal cavity, the chest, the oral cavity and the neck of the mouse, and finally filling the mouse with the anti-corrosion powder; tearing the cotton ball into a sheet shape, covering the space between the mouse chest, abdominal cavity, neck preservative powder and skin, sewing, then taking down and inserting on a foam plate, adjusting the shape, and arranging hair; and putting the modeled mouse book into a paper box, pouring anti-corrosion powder, sealing the box, air-drying, taking out the mouse book, wiping off the anti-corrosion powder, installing an artificial eye, displaying and pasting an information label, thereby finishing the manufacturing. The ecological specimen prepared through the method is vivid in form, the operation method is simple, and no chemical hazard or risk exists.

The invention relates to an artificial eye lens (1) with at least one optical part (2) which has a front side (3) and a rear side (4) opposite the front side (3), wherein the optical part (2) has at least one base lens body (10) which has a number n, with n greater than or equal to 2, of base lens body foci (BFN; BF1; BFF), wherein the artificial eye lens (1) has a transmission filter system (12) with at least one transmission filter (16, 17, 18) which is in optically operative connection with the base lens body (10), wherein at least one base lens body focus (BFN; BF1; BFF) has chromatic aberration and, depending on the chromatic aberrations thereof, a number m, with m greater than zero and less than n, of eye lens foci (AF1, AF2) of the artificial eye lens (1) is formed with the transmission filter system (12).

The invention discloses a steel structure welding seam on-line detection device and method, a mounting rack on a detection body rack is provided with a driving rotating shaft, the driving rotating shaft is connected with the mounting rack through a support frame, and the driving rotating shaft is provided with a detection unit; the detection unit rotates on the driving rotating shaft along with the driving rotating shaft, so that the detection angle is greatly improved, and the edge part of a to-be-detected welding seam can be covered; the detection unit comprises an ultrasonic detection module and a sensor module; and the ultrasonic detection module and the sensor module are used for detecting a welding seam and transmitting detected welding seam information to an external controller. According to the method, the ultrasonic detection module and the sensor module are adopted to conduct online detection at the same time, the ultrasonic detection module and the sensor module can detect the welding seam in real time and collect relevant welding seam characteristics and information, and welding seam detection errors caused by welding operation in the welding process are greatly reduced; and manual naked eye observation is not needed, so that the damage to the artificial eyes and the labor intensity are reduced.

The invention discloses a multi-degree-of-freedom human eye simulation device based on rope driving and a control method thereof, the human eye simulation device comprises an eyeball and imaging module, the eyeball and imaging module is composed of an eyeball, a camera and a lens module, the eyeball is a hollow sphere, and the camera and lens module is installed in an internal cavity of the eyeball and synchronously moves along with the eyeball; the spherical pair supporting structure comprises a base, and the base is provided with a ball socket which is in spherical hinge fit with the outer spherical surface of the eyeball; a base threading hole is formed in the base, the motion control rope is fixed to the eyeball through the base threading hole, a weft guide groove and a warp guide groove are machined in the surface of the eyeball, and the motion control rope passes through the weft guide groove and the warp guide groove to be routed outwards; the driving supporting structure comprises a rope-controlled supporting frame connected with the base, a rope guide hole is formed in the rope-controlled supporting frame, and the motion control rope is connected with a winding wheel of the rope-controlled motor through the rope guide hole. The structure size and rotational inertia can be reduced, the dynamic response capability and the degree of freedom are improved, and control is accurate.

Medical training device for surgical training in ophthalmology for learning and practicing medical manual and instrumental surgical techniques with a holder for fixing animal or artificial eyes, characterized in that the eye (2) is inserted into a socket (4) of an actuating cylinder (3) and is pressed against an orbital opening (6) of the mask (1) for positioning and fixing by means of the actuating cylinder (3) inserted in a guide (5) of a mask (1).

This item is a fishing lure primarily used to catch squid, octopus, etc. As shown in the "Reference Diagram for Explaining Each Part," this item comprises a core portion, a main body portion, a needle, and an artificial eye. The tubular main body portion is formed around one end of the shaft portion of the core portion. A needle is attached to the other end of the shaft portion of the core portion. The core portion is formed with a displacement prevention portion that is continuous with the shaft portion and expands in diameter toward the main body portion. The displacement prevention portion prevents the main body portion from dislocating from the shaft portion, and also provides a recess for installing the artificial eye.

One aspect of the invention relates to an artificial eye implant (1) with a carrier (4) and with an eye pressure measuring device (8), wherein the eye pressure measuring device (8) is arranged on the carrier (4) and a light source (10) has a light receiver (11) and at least one photonic light guide (9, 9') and / or at least one perforated light guide (9, 9'), wherein the photonic and / or perforated light guide (9, 9') is designed to change a conduction of light from the light source (10) depending on a deformation generated by a force, wherein the light receiver (11) is coupled to the photonic and / or perforated light guide (9, 9') in order to receive light guided by the photonic and / or perforated light guide (9, 9').

The invention provides a preset image type ocular prosthesis sheet display device, which is connected with a camera device arranged on a normal eyeball side and comprises an ocular prosthesis sheet base material, a power supply and a display screen which is carried on the ocular prosthesis sheet base material and is used for displaying a preset eyeball image, the device does not depend on an electronic ocular prosthesis table. According to the artificial eye piece display device, the position of the preset eyeball image on the display screen is adjusted by receiving the motion trail signal of the normal eyeball generated and sent by the camera device, and synchronous motion with the normal eyeball is achieved visually. By simplifying the movement track signal and controlling the movement of the preset eyeball image, the real-time synchronous movement with the normal eyeball is realized, meanwhile, the hardware requirement of the device is reduced, the miniaturization and the light weight of the ocular prosthesis display device are facilitated, and the wearing stability of the ocular prosthesis display device is improved.

The present invention discloses a method and system for evaluating the tracking angle range of an eye movement tracking device. An artificial eye is provided inside the eye movement tracking device. The method includes: controlling the artificial eye to continuously rotate with the center point as the starting measurement point along a preset measurement direction at a preset angle gradient value, collecting raw eye movement data through the eye movement tracking device, and stopping the rotation of the artificial eye and data collection when the data loss rate reaches a preset value; calculating the data loss rate of each tracking angle in the raw eye movement data, and determining the partition angles of the medium and low recognition areas of eye movement tracking in the corresponding measurement direction of the eye movement tracking device according to the data loss rate; calculating the accuracy of each tracking angle in the raw eye movement data, and determining the partition angles of the medium and high recognition areas of eye movement tracking in the corresponding measurement direction of the eye movement tracking device according to the accuracy. The present invention can calibrate the tracking range of the eye movement tracking system and is applicable to head-mounted eye movement tracking devices.

The present invention belongs to the field of medical device technology and discloses a method for manufacturing a 3D bionic structure prosthetic eye and the prosthetic eye, which solves the problems of long production cycle, complex process, non-reproducibility, large deviation in authenticity, morphological mismatch, and insufficient personalized demand in the prosthetic eye manufacturing process in the prior art. The present invention first obtains the fundus OCT scanning data of the patient's healthy eye and the three-dimensional data of the corneal model obtained by taking a liquid mold of the patient's affected eye as the basic data for the prosthetic eye design. These basic data are used in modeling software to perform reverse three-dimensional modeling, design the appearance structure, and perform texture design and color mapping design. Finally, a three-dimensional model of the prosthetic eye that is a 1:1 replica of the healthy eye is obtained. Finally, the prosthetic eye is manufactured using the three-dimensional model of the prosthetic eye with the help of 3D printing technology.

The application provides an artificial eye manufacturing method, an artificial eye and an artificial eye. The manufacturing method comprises the following steps: obtaining eye image data of a patient, wherein the eye image data comprises eye image data of an affected eye and eye image data of a healthy eye; constructing an initial three-dimensional data model of an artificial eye according to the eye image data of the affected eye, wherein the initial three-dimensional data model is a simulation model with a three-dimensional morphological feature; matching the eye image data of the healthy eye with data samples in a preset artificial eye database, and determining a mapping image data according to a similarity; fusing the mapping image data with the initial three-dimensional data model to obtain a target three-dimensional data model of the artificial eye; and manufacturing the artificial eye based on the target three-dimensional data model. The artificial eye manufacturing method, the artificial eye and the artificial eye provided by the application can imitate the shape of a real eyeball, improve the fidelity of the artificial eye, and effectively improve the manufacturing efficiency.

The invention relates to the technical field of assistance, in particular to a skin pressure sensing technology-based artificial eye auxiliary system for blind people, which comprises a structured light depth camera used for adapting to various environments, carrying out wide-angle detection and converting sceneries within 15 meters into depth sceneries and can be held by hand or fixed on the head; the controller comprises a wireless charging device and is used for converting the depth scene into a pressure array diagram and carrying out pressure touch linearization processing to drive the pressure array device; the system further comprises an external expansion interface connected with the controller, and the external expansion interface is used for being connected with external equipment, such as mobile storage equipment and network communication equipment, so that expansion storage and remote transmission and control functions of data are realized.

The invention provides a delay time determination method and apparatus, an electronic device and a storage medium, the method is used for determining the delay time of eye movement tracking in a to-be-tested XR device, and the method comprises the steps of receiving output information of a sensor, determining a first moment when an artificial eye moves to a preset position according to the output information, the output information is used for representing actual motion information of the artificial eye; the time when the synchronous signal is received is determined as a second time, the synchronous signal is a signal output when the to-be-tested XR device determines that the artificial eye moves to a preset position through the eye movement tracking module, first delay time is determined according to the first time and the second time, and the time point when the artificial eye moves to the preset position is captured through the sensor; and capturing a time point of a synchronization signal generated when the eye movement tracking module determines that the artificial eye moves to a preset position, thereby accurately determining delay from real occurrence of the eye movement event to detection of the eye movement event by the to-be-tested XR equipment through an algorithm, and determining a performance index of the to-be-tested XR equipment.

Functionalized spiropyran-based photo-hydrogels that include at least two different spiropyrans are disclosed herein. The disclosed photo-hydrogels may include two spiropyrans with differing chemical properties. In some variations, the spiropyran-based photo-hydrogel includes two functionalized spiropyrans, including a first functionalized spiropyran having a net positive charge and a second functionalized spiropyran having a net negative charge. The net positive and net negative charges are equal and opposite, such that the spiropyran-based photo-hydrogel has an overall net zero charge. In the absence of light, the spiropyrans are in their corresponding merocyanine forms and the photo-hydrogel has a high degree of aggregation. Irradiation, such as exposure to visible light, causes photo-isomerization of the merocyanines into spiropyrans, resulting in an increase in the amount of swelling of the photo-hydrogel. In some implementations, the disclosed photo-hydrogels may be used in a variety of applications such as light-controlled micropumps, artificial eye muscles, cameras, and drug delivery systems.

Artificial eye lens (1) with an optical part (2) which has a first optical side (4) viewed in the direction of a main optical axis (A) of the eye lens (1) and an opposite second optical side (5), wherein the optical part (2) is formed with a structure (2a) having birefringence, characterized in that the birefringent structure (2a) in the one-piece optical part (2) is formed as a laser structure.