66 results about "Low vision" patented technology

Users exploiting near-to-eye (NR2I) displays for augmented reality and / or correction of low vision are typically wearing these NR2I displays for specific tasks or for extended periods of time, potentially all their time awake. Conflicting tradeoffs between user comfort and minimal fatigue and strain during use, ease of attachment, minimizing intrusiveness and aesthetics should be concurrently balanced with providing an optical vision system that provides the user with a wide field of view, high image resolution, and a large exit pupil for eye placement with sufficient eye clearance. Accordingly, embodiments of the invention provide NR2I displays meeting these conflicts whilst also addressing the inherent variations between user in respect of their head dimensions, head and eye geometry, as well as adapting the displayed content to reflect the user's task at-hand, visual defects or degradations, visual focus and intent upon various regions-of-interest within their field of view. Such HMDs providing enhanced user experiences.

The invention relates to the technical field of semiconductors, in particular to a die bonder and a correction method thereof, a computer readable storage medium and packaging equipment. The device is applied to a die bonder, and the die bonder comprises a swing arm capable of rotating, a suction nozzle fixedly connected with the swing arm, a die bonding lens and a die taking lens which are located above the swing arm, and a downward-looking flying shooting lens located below the swing arm. When the swing arm rotates, the suction nozzle passes through the visual fields of the three camera lenses, and a calibration jig is arranged on the swing arm; the correction method of the die bonder comprises the following steps: driving a swing arm to swing, and respectively acquiring camera pixel ratios and camera coordinate calibration of three camera lenses based on a calibration jig; the center coordinate of the center point of the suction nozzle is obtained through the down-looking flying shooting lens, the crystal taking coordinate of the suction nozzle is obtained through the crystal taking lens, and the crystal fixing coordinate of the suction nozzle is obtained through the crystal fixing lens; and based on the center coordinate, the die bond coordinate, the die pick-up coordinate, the die bond pixel ratio and the camera pixel ratio, acquiring a die pick-up position offset and a die bond position offset. The position of the suction nozzle can be accurately obtained.

A low vision aid system including a camera module to be used with a mobile device, including a macro camera configured to focus on near-field objects that is integrated within the low vision aid camera module and an illumination source structured to illuminate a field of view associated with the macro camera, a battery power supply and a wireless communication module. The wireless communication module establishes an isolated Wi-Fi connection to the mobile device. The isolated Wi-Fi connection prevents the mobile device from communicating over other Wi-Fi networks while the isolated Wi-Fi connection is maintained. The wireless communication module receives, via the isolated Wi-Fi connection, instructions from the mobile device, that are associated with operation of the macro camera, and sends via the isolated Wi-Fi connection, a video bitstream to the mobile device based on the instructions.

The utility model provides a feeding machine used for PCB testing, comprising a feeding machine workbench, the workbench is provided with a tray feeding mechanism, a multi-joint manipulator, a lower visual camera, a defective product blanking module and a carrier transportation module, and the multi-joint manipulator comprises a rotating arm rotating seat, a material taking module, an upper visual camera and a multi-joint rotating arm. The multi-joint rotating arm is composed of a plurality of rotating driving arms, the rear end of the multi-joint rotating arm is fixedly arranged on the rotating arm rotating seat, and a lifting mechanism is further arranged at the front end of the multi-joint rotating arm. According to the PCB feeding machine, the problem that testing resources are wasted in a PCB feeding machine in the prior art can be solved, defect detection can be efficiently carried out through the product structure, the upper visual camera and the lower visual camera, after defective products are detected, the defective products are placed into the defective product discharging module to be discharged efficiently, the automation level of feeding equipment is improved, and the production efficiency is improved. The economic benefit of testing and the use experience of operators are improved, and the competitiveness of enterprises is improved.

An extended reality (XR) system is described herein. The XR system includes a display system mounted to the headset for displaying a display screen including computer-generated images thereon, and a controller that includes one or more processors programmed to execute an algorithm for operating in an optical character recognition (OCR) mode to display a text selection screen by generating an image distortion zone within the text selection screen associated with a non-viewable boundary and modifying received video images to adjust a viewable image attribute of a portion of the received video images displayed within the image distortion zone, and operating in the scrolling text mode to display a text display screen by generating machine-readable text OCR and modifying the generating machine-readable text using a lightweight language model for text correction.

The present invention relates to a multi-luminance visual navigation test field for performing a vision test on a test subject. The multi-luminance visual navigation test field comprises: a test map, which can be operated to form a plurality of test scenes, each of which is provided with a preset walking route; a plurality of static obstacles, which are arranged on the test map and are used to form obstacles on the test map to hinder the test subject's progress; and a light source assembly, which is used to provide a plurality of light intensities. The multi-luminance visual navigation test field solves the problem in the prior art that the route design of the MLMT scheme is a full white background and arrows are used to indicate the direction of travel, but since most RP patients have extremely low vision and show decreased panretinal light sensitivity mainly due to rod cell damage, the problem that patients have difficulty distinguishing route markings and thus have difficulty in detection is solved. The multi-luminance visual navigation test field has a wide range of applications, low cost and higher detection accuracy.

1. The name of the design product: magnifier. 2. The use of the design product: the design product is used to help low vision population to read and study on the desktop. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: the main view A part is made of translucent material.

Exemplary light control devices and methods provide a regional variation of visual information and sampling (“V-VIS”) of an ocular field of view that improves or stabilizes vision, ameliorates a visual symptom, reduces the rate of vision loss, or reduces the progression of an ophthalmic or neurologic condition, disease, injury or disorder. The V-VIS devices and methods generate a moving aperture effect anterior to a retina that samples and delivers to the retina environmental light from an ocular field of view at a sampling rate between 50 hertz and 50 kilohertz. Certain of these V-VIS devices and methods may be combined with augmented or virtual reality, vision measurement, vision monitoring, or other therapies including, but not limited to, pharmacological, gene, retinal replacement and stem cell therapies.

The invention discloses a full-automatic assembling, detecting and oiling all-in-one machine for elastic pieces and rotary knobs. The full-automatic assembling, detecting and oiling all-in-one machine comprises a rotary knob feeding and discharging device, a rotary disc mechanism arranged on one side of the rotary knob feeding and discharging device, an elastic piece feeding device, a hot riveting device, a visual detecting device and an oiling device, an elastic piece assembling device is further arranged between the elastic piece feeding device and the rotary disc mechanism. A lower vision mechanism is further arranged between the knob feeding and discharging device and the rotary disc mechanism. A series of procedures such as automatic assembly, hot riveting, detection and oil injection of the elastic pieces and the rotary knobs can be achieved, the automation degree is high, and the working efficiency is high.

The application relates to a zero-character full-symbol medication guidance system based on a fool-proof design, and belongs to the technical field of medical safety. The system comprises seven pure graphical symbol modules of medication frequency, medication time, medication dose, medication route, contraindication warning, adverse reaction treatment and missed medication treatment. The modules are visually distinguished by unified color, shape and line type, and are combined into a complete information chain in a fixed order of frequency, time, dose, route, contraindication, adverse reaction and missed medication, and are printed or displayed on a medicine box, a medication guidance sheet or a prescription carrier. The application migrates the picture priority and fool-proof and error-proof operation national standard system in the construction industry to a medical medication scene, fundamentally eliminates medication misreading risks caused by ambiguous characters, character ambiguity and cultural level differences, realizes the instinctive recognition and accurate execution of the whole population such as illiterates, the elderly with low vision and cognitive impairment, and has the remarkable technical effects of zero learning cost, full-process coverage and low cost and easy popularization.

The invention provides an intelligent visual perception training method and system based on a micro-view and a Gabor sighting mark, a medium, a program product and a terminal, and the method can generate personalized initial training regions and training sighting marks for different patients through importing a micro-view inspection result and combining with the positioning of a residual function region and micro-view sensitivity, thereby improving the training efficiency. Therefore, the training effect is obviously improved. Meanwhile, stimulation parameters are dynamically adjusted according to patient performance, so that the training content is always matched with the visual ability level of the patient. The characteristics of controllable spatial frequency, direction, contrast ratio and the like of the Gabor sighting target are utilized to construct a multi-level task from easy to difficult, and the diversity and suitability of training are improved. The data-driven weight mechanism not only enhances the scientificity of training, but also provides visual rehabilitation progress reference for clinicians. According to the method, the precise positioning capability of the micro-view and the multi-dimensional stimulation advantage of the Gabor visual target are fully utilized, and the rehabilitation effect and compliance of the low-vision patient are remarkably improved by combining the precise positioning capability with the multi-dimensional stimulation advantage of the Gabor visual target.

1. Name of the product in this design: Vision imaging device. 2. Purpose of this design: This design is intended to be used as a visual magnification device for people with low vision when reading, and the screen can be adjusted to landscape or portrait mode as needed. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

A supporting case for use with a smart device such as a smart phone to assist a visually impaired individual. The case has a lower surface for positioning over a viewing surface containing material to be viewed by the individual and a pocket configured and dimensioned to receive and support the smart device. The case includes one or both of a lifting system for lifting and holding the case hands-free at a pre-set distance above the material to be viewed and a distance viewing system to view material not underneath the case.

The utility model belongs to the technical field of PCB processing, and particularly relates to an AI visual inspection machine which comprises a rack, a lower visual mechanism, a glass detection platform, a glass upper cover plate, a glass upper cover moving mechanism, an upper visual mechanism, a feeding box mechanism, a plate taking mechanism and a discharging box mechanism. And the glass upper cover plate and the glass detection platform form a detection channel. The lower vision mechanism comprises a lower vision moving assembly and a lower vision detecting assembly. The upper visual mechanism comprises an upper visual moving assembly and an upper visual detection assembly, the upper visual moving assembly is connected to the rack, the upper visual detection assembly is connected to the upper visual moving assembly, and the upper visual detection assembly is arranged above the glass upper cover plate. According to the AI visual inspection machine provided by the invention, all the mechanisms cooperate with one another, high-definition images are simultaneously and quickly obtained from two sides, and AI automatic judgment is performed to complete the detection work, so that manpower is reduced, risks of manual misjudgment and product contact are avoided, and the detection precision and efficiency are improved.

The invention belongs to the technical field of product assembly and detection, and discloses an assembly and test production line for various small products, which comprises a first workbench, a second workbench, a third workbench and a fourth workbench, and a shuttle module assembly and a manual operation unit are arranged between the adjacent workbenches. A six-axis mechanical arm with an upper vision is arranged in the middle of each workbench, a combined suction tool is arranged at the free end of each six-axis mechanical arm, each workbench is further provided with a lower vision, an NG belt line and a quick-change disc supporting frame, and each workbench is provided with various modules used for assembly and detection around the corresponding six-axis mechanical arm. The assembly test production line is small in occupied area, high in integration level, high in assembly production efficiency, low in manual labor intensity, good in applicability, capable of conducting assembly detection on small products of different types, and lower in manufacturing cost compared with an original multiple production line.

The invention particularly relates to a training system for improving a low-vision crowd contour recognition function, and relates to the technical field of visual function training. A training image generation module; a training process control module; and a data recording and analyzing module. According to the invention, based on the functional condition characteristics of the low-vision crowd, through targeted training image design, rigorous training process control and synchronous combination of training auxiliary equipment, the low-vision crowd is effectively helped to improve the ability of integrating multiple visual features into contour features, various visual difficulties encountered by the low-vision crowd in daily life are reduced, and the visual experience of the low-vision crowd is improved. The life quality is improved.

The utility model relates to an automatic earphone cabin loudspeaker assembling device, the specific structure is that the automatic earphone cabin loudspeaker assembling device comprises a streamline mechanism and a material conveying module arranged on the streamline mechanism, the material conveying module comprises a material conveying motion module and a material conveying clamping jaw, and the streamline mechanism comprises a return line module and a main line module. The motion trail of the material conveying clamping jaw covers the return line module and the main line module, a mechanical arm module, a visual module and a feeding module are sequentially arranged along the main line module, and the visual module is divided into an upper visual system, a lower visual system and a feeding visual system. The feeding module comprises a feeding conveying belt and a feeding supporting frame arranged on one side of the feeding conveying belt, a feeding tray is detachably connected to the feeding supporting frame, a feeding hole matched with the feeding tray is formed in the feeding supporting frame, a discharging carrying module and a material throwing module are fixedly arranged at the tail end of the main flow line module, the surface of the material throwing module is inclined, and the discharging carrying module and the material throwing module are fixedly arranged on the main flow line module. And by arranging an automatic material conveying and feeding structure, the automatic assembling effect is achieved.

The present application relates to the technical field of human-computer interaction, and provides a line-of-sight tracking method for a head-mounted optical visual aid, comprising the following steps: firstly, pre-processing the collected image; secondly, judging the region where the visual aid is located; thirdly, solving the problems of occlusion and deformation of the pupil to obtain the pupil contour; fourthly, modeling the pupil and the eyeball according to the pupil contour and solving the parameters; and finally, realizing line-of-sight tracking through coordinate system conversion and single-point calibration. The present application can be used for line-of-sight tracking of a user in the case of wearing a head-mounted optical visual aid, can quickly and accurately complete the line-of-sight tracking task of the head-mounted optical visual aid, has good accuracy and robustness, and has positive significance for the attention mechanism research of low-vision people.

The invention provides a multi-modal interaction system suitable for a low-vision user to use an AR device, and belongs to the technical field of augmented reality. A multi-mode input device, wherein the multi-mode input device is connected with the AR device; the multi-modal input equipment is used for acquiring multi-modal information of a low-vision user and sending the multi-modal information to the AR equipment; the AR equipment is used for fusing the multi-mode information to interact with the low-vision user. By adopting the technical scheme of the invention, a low-vision user can stably and conveniently use the AR equipment in different environments and tasks, so that diversified requirements of daily life and work can be better met.

A smoke evacuation flow regulator for use with a suction source to rapidly remove excess smoke during an endoscopic surgical procedure is described. The smoke evacuation regulator may include a body having a gas pathway and a knob assembly threadably attached to the body that is sized to completely open or completely close the gas pathway in a single revolution of the knob assembly. The head of the knob assembly may be sized and shaped to permit tactile determination of the rotational position of the knob assembly in low vision situations. The body of the smoke evacuation flow regulator may include a knob assembly retaining arm that cooperates with a disk or extension on the knob assembly to allow rotational freedom of the knob assembly, but prevent inadvertent removal of the knob assembly from the body during use.

The present invention provides a method for treating age-related macular degeneration or retinal degeneration such as hereditary retinal degeneration by photostimulation, in which light of a specific wavelength range such as purple light is irradiated at a specific flicker frequency; the invention also provides a device for the method. In the present invention, at least one symptom selected from the group consisting of low vision, visual deformation, central dark spot, and complete blindness is improved or suppressed by irradiating an organism with light of a specific wavelength range such as purple light, and age-related macular degeneration or retinal degeneration such as hereditary retinal degeneration is treated and / or prevented.

The invention discloses a visual impaired person behavior ability assessment method and system, and relates to the technical field of visual rehabilitation, and the method comprises the steps: obtaining a dynamic behavior video of a visual impaired person; analyzing the dynamic behavior video by using a human body posture recognition library and a deep learning algorithm, and determining a head rotation direction and rotation times of the visually impaired person; and comparing and analyzing the head rotation direction and the rotation frequency of the visually impaired person with a pre-established standardized reference table, evaluating the actual use effect of the magnifying visual aid or the visual field expanding visual aid worn by the visually impaired person, and generating a personalized rehabilitation scheme according to the actual use effect. According to the method and the system provided by the invention, the visual behavior capability of a low-vision group is reflected more comprehensively and accurately by evaluating the head rotation frequency index of the visually impaired person in dynamic behaviors such as obstacle avoidance and search, so that powerful support is provided for formulating a personalized rehabilitation scheme.

Disclosed is an apparatus and method for combating light sensitivity, or photophobia, for people with low vision. Both the apparatus and method filter particular wavelengths of light associated with photophobia. This filtering is achieved while maintaining a luminance that is acceptable to the user and that maintains contrast. The apparatus of the disclosure is a mechanical filter that can be applied over an electronic screen. The method utilizes software and a filtering module associated with either the CPU or GPU of a computer. The filtering module processes a video signal by eliminating certain targeted wavelengths of light.

The invention discloses surface flaw detection equipment for a heat dissipation cover. The surface flaw detection equipment comprises a feeding unit, a lower visual detection unit, a transfer unit, an upper visual detection unit and a discharging unit, the feeding unit adopts a three-stage progressive transplanting mechanism, and high-precision material positioning and reversing are achieved in combination with a dynamic distance adjusting mechanism and a double-station synchronous carrying table. The lower visual detection unit adopts a double-camera structure to detect the lower end surface defects of the heat dissipation cover material; and the transfer unit realizes seamless connection of upper and lower visual detection stations through a servo turntable. The upper visual detection unit detects upper end face flaws through a high-speed camera, and the discharging unit completes classified discharging through an XYZ three-axis transplanting mechanism. Linear motion control is adopted to replace a traditional rotating mechanism, servo synchronous adjustment and double-station parallel detection are combined, the detection efficiency and compatibility are improved, an automatic correction system and an automatic transfer system are integrated, manual intervention is remarkably reduced, and the device is suitable for high-precision automatic detection scenes.

A workpiece front and back surface auxiliary material and flatness inspection device includes a conveying device and a transfer device, and further includes: a fixture device, which is disposed beside the conveying device, including a positioning fixture and a first linear module that drives the positioning fixture to reciprocate; the positioning fixture includes a fixture plate and a plurality of positioning components disposed on the fixture plate and defining a clamping area, and a window is also provided on the fixture plate in the clamping area for exposing the lower surface of the workpiece to be inspected; and an inspection device, which is disposed on the moving path of the positioning fixture, and includes an upper vision camera assembly and a lower vision camera assembly symmetrically arranged in the vertical direction. This technical solution can greatly improve the efficiency of inspecting double-sided workpieces, while also reducing the degree of manual intervention and lowering the labor intensity of workers.

The invention relates to an automatic cooling fin putting method applied to crystal assembly locking. The automatic cooling fin putting method comprises the following steps that cooling fins are conveyed to a material taking station through a belt conveying mechanism; the position of the locking face of the cooling fin is recognized through an upper visual camera arranged over the belt conveying mechanism, and the suction position of a mechanical arm is positioned; according to the recognition result of the upper visual camera, a mechanical arm is driven to move to a positioned suction position, and the cooling fins are grabbed through a suction nozzle; the grabbed cooling fins are photographed and recognized through a lower visual camera arranged on the side of the mechanical arm so as to determine the placement direction of the cooling fins; and according to the recognition result of the lower vision camera, the mechanical arm is driven to accurately place the cooling fin into the automatic locking mold according to the preset direction. The full-process automation of feeding, identifying, grabbing and putting of the cooling fins is achieved, a low-efficiency manual putting mode is replaced, and the overall production efficiency is greatly improved.

Disclosed is an electronic device. One or more processors, when instructions are individually or collectively executed, cause the electronic device to: control a display to display a multi-view image including a plurality of images when a user input for viewing the plurality of images is received while one image is displayed via the display; when a user input for selecting one image from among the plurality of images and viewing the selected image in a low vision mode is received, acquire a first image in which an outline of an object included in the selected image is emphasized; acquire an output image which includes the first image and the remaining images other than the first image among the plurality of images and in which an edge of the first image is emphasized; and control the display to display the output image thereon.

The invention discloses a projection imaging method of a night vision device and circuit design, which are applied to application scenes needing night vision auxiliary equipment, such as night walking of low-vision people and night driving of healthy people. Wherein the control circuit part takes an FPGA (Field Programmable Gate Array) chip as a core, communicates with a projection control chip through an I2C protocol, transmits optimized image data in real time, remarkably improves the image definition in a low-light environment, and has the performances of high performance, low power consumption and the like. A projection control chip is adopted to control a projector to project an image, and light is reflected by a customized prism and finally converged to a C surface of the prism for imaging. The optical structure of the triangular prism is improved, and the micro curved surface design is introduced to the B surface of the triangular prism, so that incident light is diverged and amplified in the reflection process. And meanwhile, the B surface of the prism is plated with a high-transmittance blue light inhibition coating, so that harmful blue light in the wave band of 415-455nm can be effectively absorbed, and a soft light diffusion effect is achieved. According to the structure, the completeness, the size, the brightness and the angle of the picture are adaptive to the visual acceptance range of human eyes, a good visual effect is provided for a user, and the problem of visual fatigue caused by long-term wearing is effectively solved.