15 results about "Artificial Eyes" patented technology

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.

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.

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 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.

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 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.

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.

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 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.

An applicator for an artificial eyelash extension system having a plurality of filaments, a first adhesive disposed on a first surface of the filaments and to be attached to a natural eyelash of a user, the applicator comprising: a tip portion, the tip part is provided with a bonding area located at a preset position of the upper surface of the tip part and a second adhesive applied to the bonding area; and a tab portion connected to the tip portion and configured to be grasped by a user, the second surface of the filament of the artificial eyelash extension system being temporarily fixed to a second adhesive, and the second adhesive having a second adhesive strength less than the first adhesive strength of the first adhesive.

The present application relates to the technical field of composite materials, and provides a ceramic framework and a preparation method therefor and the use thereof, and a resin-ceramic composite material and a preparation method therefor and the use thereof. In the present application, ceramic frameworks having different porous structures exhibit varying hardness and strength, and can adapt to the demands of biomedical materials for different uses. In the present application, the hardness, strength and toughness of the resin-ceramic composite material can be regulated by means of the combination of the ceramic frameworks having different porous structures and different resins, and the composite material can be applied to biomedical materials such as dentures, artificial eyes or biomimetic bones.