31results about How to "Avoid visual impairment" patented technology

Pan, tilt and zoom sensors are coupled to a broadcast camera in order to determine the field of view of the broadcast camera and to make a rough estimate of a target's location in the broadcast camera's field of view. Pattern recognition techniques can be used to determine the exact location of the target in the broadcast camera's field of view. If a preselected target is at least partially within the field of view of the broadcast camera, all or part of the target's image is enhanced. The enhancements include replacing the target image with a second image, overlaying the target image or highlighting the target image. Examples of a target include a billboard, a portion of a playing field or another location at a live event. The enhancements made to the target's image can be seen by the television viewer but are not visible to persons at the live event.

The invention provides peptide derivatives designed to deliver peptides having growth factor inhibitory activity, especially somatostatin analogs, to the retina by sequential metabolism. The peptide derivatives, which comprise a dihydropyridine<CUSTOM-CHARACTER FILE="US06440933-20020827-P00900.TIF" ALT="custom character" HE="20" WI="20" ID="CUSTOM-CHARACTER-00001" / >pyridinium salt-type redox targetor moiety, a bulky lipophilic function and an amino acid / dipeptide / tripeptide spacer, are used in the prevention and treatment of diabetic retinopathy.

Through a plurality of consecutive frames, a display controller produces a multi-gradation image on a display device formed by a plurality of binary-state pixels in an array. The display controller includes an image memory for providing each of the pixels with gradation data. A waveform pattern selector outputs a waveform pattern selecting signal for causing a waveform pattern memory to provide any two adjacent pixels with two different sets of waveform pattern signals. The plurality of consecutive frames are operated at a fixed frame rate, which is set high enough for preventing visual disturbances.

An intra-regional vehicle driving status information sharing informing platform system comprises at least two mobile stations which are arranged on different vehicles within the region and with a driving status information sharing function. Each of the mobile stations comprises an information-sending module used for sending self-driving-status information, an information-receiving module used for receiving driving status information of other vehicles within the region, an information-processing module used for expressing and processing vehicle driving status information and a terminal display used for displaying a processing result of the information-processing module, wherein the information-sending module, the information-receiving module and the terminal display are respectively connected with the information-processing module. According to the intra-regional vehicle driving status information sharing informing platform system, transmission modes such as electromagnetic wave are used, vehicle driving status information transmission and sharing are conducted among the mobile stations, visual disorder of drivers within the region can be overcome and driving status information of other vehicles out of sight can be acquired, and thus the problem that vehicle collision is prone to occurring at the corner or at the crossroads and the potential safety hazard of out of sight when overtaking is conducted are effectively resolved.

The embodiment of the invention discloses a method and device for protecting the eyesight of a user. The method includes the following steps that: an eyesight protection instruction triggered by the user is received; information is obtained through a detection sensor, wherein the information includes the information of a distance from the user to the display screen of a mobile terminal and / or the luminance information of an environment where the mobile terminal is located; the information is compared with pre-stored information; and if time information is greater than or equal to preset time information, promoting information is triggered, and the brightness of the screen is decreased, or the brightness of the screen is reduced. Thus, with the method and device adopted, when the user uses the mobile terminal under a near-distance condition, the user can be prompted to keep a far distance from the mobile terminal, or when the user uses the mobile terminal under a weak-light condition, the brightness of the mobile terminal is reduced, and therefore, the problem of harm to the eyesight of the user when the user uses the mobile terminal under the near-distance condition or the weak-light condition can be solved.

The embodiment of the invention discloses a method and a device for prompting the distance between a user and a screen. An instruction of starting on distance protection, which is triggered by the user, is received; the distance between the user and the screen of a mobile terminal is obtained through a distance sensor; the distance between the user and the screen of the mobile terminal is compared with prestored distance; if the distance between the user and the screen of the mobile terminal is less than or equal to the prestored distance and is kept for preset time, a prompting message is started, and the prompting message is used for reminding the user to be far from the screen of the mobile terminal, so that the problems that the user is reminded to be far from the mobile terminal when the user uses the mobile terminal at short distance and the vision of the user is damaged because the user uses the mobile terminal at short distance are solved.

The invention relates to VR glasses possessing automatic focusing and eye protection functions. The VR glasses comprise a main body, a moving block, an elastic cord and two lens cones. Two through holes, two grooves and two chutes are arranged in the main body. A focusing mechanism, a prompting mechanism and two protection mechanisms are arranged in the main body. The focusing mechanism comprisesa double-shaft motor and two adjusting units. Each adjusting unit comprises a tooth bar, a first gear, a worm, a second gear and a connecting rod. Each protection mechanism comprises a driving unit and a shielding unit. The driving unit comprises a motor, a driving wheel, a fixed rope, a fixed pulley and a slide rod. The shielding unit comprises a swing plate and a rotation rod. By using the VR glasses possessing the automatic focusing and eye protection functions, through the focusing mechanism, a pupil distance can be automatically adjusted so that a user does not need to manually adjust eyeglasses and an eye distance. Besides, through the protection mechanisms, visual impairment of the user, which is generated because of long-time VR glasses usage, can be avoided.

The invention provides a smart glasses case which consists of a glasses case (1), a lining pressure plate (2), a functional circuit board (3), a photosensitive detector (4), a pressure-sensitive sensor (5), a play speaker (6), a lithium battery (7), a power switch (8), a charge socket (9), an earphone socket (10), an earphone (11) and a charger (12). According to the smart glasses case, on the basis of maintaining the glasses containing function of the traditional glasses case and in combination with the objective need for timely eyesight protection of a glasses wearer, the eyesight protection voice and music timing reminding functions are set in the glasses case; when the wearer opens the glasses case and takes out the glasses to wear, an eyesight protection prompt system in the glasses case enters a timing state and drives a voice circuit to play pleasant music, and the wearer feels comfortable and happy and stays in a relax state, thereby avoiding the visual damage caused by over fatigue of the eyes.

The invention relates to smart VR (virtual reality) glasses with a focal length adjustment function. The smart VR (virtual reality) glasses comprise a main body, a storage rack, a lens barrel and a fixing belt; a PLC, a prompting mechanism and an adjusting mechanism are arranged in the main body; the prompting mechanism comprises a driving room and two moving units; a driving unit comprises a first motor, a rotating rod, a swinging rod and a moving block, the moving unit comprises a first pulley, a second pulley, a fixing rope, a limiting slot, a spring and an elastic block; and the adjustingmechanism comprises a transmission unit and two telescopic units, wherein the transmission unit includes a second motor, a first gear, a second gear and a rotating shaft. With the prompting mechanismadopted, the smart VR glasses with the focus length adjustment function can prompt people to rest regularly, so that the impairment of the vision of a user caused by the long-time use of the VR (virtual reality) glasses can be prevented; and with the adjusting mechanism adopted, the VR glasses can automatically adjust a distance between the lenses and the eyes of the user, and therefore, the convenience of the VR glasses can be improved.

The invention discloses edge visual field training equipment based on visual field center damage. The edge visual field training equipment comprises an eye scanning equipment for inputting a picture,a camera for acquiring an external real-time image, an electronic screen for displaying the external real-time image picture to a patient, an eye sensor for monitoring the eyeball rotation angle and the holding time of the patient, a control handle for adjusting the picture, and a processor connected with each part and used for processing data. According to the equipment, the problem of central visual field defect is improved through the electronic image training equipment with the edge visual field, retina fixation point displacement is carried out on an original image obtained in the centerof the eyes of a patient with central visual field defect by means of the external equipment with an electronic screen, and the patient is trained by adopting reading practice or line-graph tracking practice to form special eye position observation, the formed image deflects to the edge visual field, the eye sensor is synchronized to acquire the corresponding correction feedback value and an auxiliary guide system and the image contrast parallax are adjusted to form benign correction, so that the visual field of the patient is obviously improved.

The invention relates to a highway tunnel light buffer device which is an arched shed frame body. The length of the highway tunnel light buffer device is 60-110 m. Light holes are formed in the shed frame body. According to the device, when a vehicle enters a tunnel at a high speed in the daytime, the visual disturbance of a driver due to the light difference inside a tunnel entrance and outside the tunnel entrance can be avoided.

The invention provides a reflection type virtual reality helmet which comprises a display screen, an optical lens and a reflector, wherein the display screen is arranged above the optical lens which is arranged above the reflector and right opposite to the display screen, and the light ray emitted by the display screen enters the eyes of an observer through reflection of a light reflection deviceafter refraction of the optical lens. Compared with the prior art, by the aid of the position arrangement of the display screen, the optical lens and the reflector, the light ray of the display screenenters the eyes through the actions of the optical lens and the reflector. The area of the display screen can be reduced greatly by the aid of the convergence action of the optical lens to the lightray and the convergence action of the reflector to the light ray, so that the whole reflection type virtual reality helmet can be more portable.

The invention belongs to the technical field of inspection equipment, and particularly relates to a cylinder sleeve surface smoothness inspection device which comprises a belt conveyor, a cylinder sleeve is vertically arranged on a belt, a tunnel type camera room is arranged on the belt conveyor, a side lamp, a top lamp and a bottom lamp are arranged in the camera room, an electric telescopic rod is arranged in the center of the top of the camera room, and the lower end of the telescopic rod is connected with a rotating motor. The lower end of a motor shaft is connected with an h-shaped camera shooting frame, an inner camera used for checking the inner wall of the cylinder sleeve and an outer camera used for checking the outer side wall of the cylinder sleeve are arranged on the camera shooting frame, an inductive switch is arranged on the inlet side of the camera shooting chamber, and a displayer, an alarm and an electric cabinet are installed on the outer side of the camera shooting chamber. According to the inspection device, visual detection of the surface smoothness of the inner wall and the outer wall of the cylinder sleeve is achieved through the camera shooting and display system, the cylinder sleeve detection efficiency is improved, the labor intensity of detection personnel is reduced, the conditions of false detection and missing detection caused by human factors are avoided, the cylinder sleeve detection reliability is improved, and the quality hidden danger of assembled engine finished products is reduced.

The invention discloses a cloud technology intelligent multimedia audio-video game entertainment bed. Comprising a headstock, a tailstock, a backrest plate, a left side plate, a right side plate, a bed plate, a bed frame, a mattress, an intelligent control module, a high-definition projector, an audio-video system lifting motor driving module, a projector lifting motor, an audio effector, a 5.1 surround sound power amplifier, a middle loudspeaker, a left front loudspeaker, a right front loudspeaker, a left surround loudspeaker, a right surround loudspeaker, a bass loudspeaker and a loudspeaker lifting motor. The system comprises a left / right control panel, a left / right storage box, a PC / game console extension bin, a monitoring camera, a left / right side plate wiring groove, a bedstead lifting motor driving module and a head / leg lifting motor. According to the intelligent bed provided by the invention, the bedroom of people can be changed into a 3D home theater projection hall, a music appreciation hall and an immersive game room, so that people can experience audio and video works and game works at a higher level in the bedroom, and meanwhile, the space utilization rate is greatly improved.

The invention discloses a ciliary muscle training device. The device comprises a shell (15), a front window (6) arranged at the front end of the shell, a pair of eyepieces (3) detachably installed atthe front end of the shell and located in the front window, a training assembly and a controller arranged in the shell, and a control panel (14) installed on the shell and electrically connected to the controller; and the training assembly comprises a guide mechanism, a transmission mechanism installed on the guide mechanism and a displayer (1) moving back and forth along the guide mechanism through the transmission mechanism, and the guide mechanism is linearly arranged in the visual direction of the eyepiece, so that the displayer can always move within the visual range of the eyepieces. According to the invention, the training of fine adjustment ability and flexibility improvement of the crystalline lens form can be realized, visual impairment caused by defocusing is solved, the abilityof human eyes to see near, far and brain images is improved, the adjustment ability of eye muscle groups is improved, and the purposes of vision stability and normal visual state are realized throughcontinuous stimulation and activation of visual cells.

The invention discloses a cloud technology intelligent multimedia audio-video game entertainment bed. Comprising a headstock, a tailstock, a backrest plate, a left side plate, a right side plate, a bed plate, a bed frame, a mattress, an intelligent control module, a laser television, an audio-video system lifting motor driving module, a laser television telescopic motor, an audio effector, a 5.1 surround sound power amplifier, a middle loudspeaker, a left front loudspeaker, a right front loudspeaker, a left surround loudspeaker, a right surround loudspeaker, a bass loudspeaker and a loudspeaker lifting motor. The system comprises a left / right control panel, a left / right storage box, a PC / game console extension bin, a monitoring camera, a left / right side plate wiring groove, a bedstead lifting motor driving module and a head / leg lifting motor. According to the intelligent bed provided by the invention, the bedroom of people can be changed into a 3D home theater projection hall, a music appreciation hall and an immersive game room, so that people can experience audio and video works and game works at a higher level in the bedroom, and meanwhile, the space utilization rate is greatly improved.

The invention discloses a method for displaying the title bar and window controls of an application window in an X window manager, which can display the title bar and window controls on demand while ensuring that the application window retains the title bar and window controls, and retains good information Presentation and window interaction effect, avoiding the visual damage of the title bar to the application window and maximizing the application window at the same time, making full use of the display space of the monitor, unifying part of the display effect of the QT program and the GTK program, and improving the management of different applications in the X window The window display effect under the monitor.

The invention relates to a composition for protecting eyes as well as a health-protection food and a preparation method thereof. The composition for protecting eyes is prepared from the following raw material components in parts by weight: 2-8 parts of haematococcus pluvialis astaxanthin microcapsule powder, 20-40 parts of lutein ester microcapsule powder and 8-15 parts of zeaxanthin microcapsule powder. The composition for protecting eyes contains rich eye protection components, can effectively relieve eyestrain, improve eye microcirculation and prevent eyes from photic injury and inflammation injury, and can effectively prevent various eye problems such as visual impairment, cataract, glaucoma and macular degeneration. The composition is especially suitable for people with uncomfortable symptoms such as eye soreness, ophthalmodynia, eye dryness and impaired vision caused by eye overuse due to various reasons, as well as eye postoperative nursing.

Improvements in a cosmetic equipment shield that provides a cosmetic shield that can cover all of the equipment that can exist on the roof of a building is disclosed. The cosmetic shield convers the roof equipment on one or more sides to improve the visual appearance of the building. The shield allows air movement through the cosmetic shield. The metal strips are staggered, offset or otherwise configured so they prevent viewing through the metal strips or louvers, but allows air flow. The cosmetic equipment shield is secured to the roof to resist most weather conditions from rain to wind, hot temperatures and freezing temperatures. The cosmetic equipment shield is configured for nearly infinite straight walls and can also include angle brackets to change the direction of the shield to 90 degrees or 270 degrees or can be angled slightly in a curved appearance.

The invention discloses an electronic sports chair with an eyesight protection function. The electronic sports chair comprises a chair back, a seat cushion, a supporting seat arranged at the bottom of the seat cushion and armrests arranged on the two sides of the seat cushion, wherein the chair back and the seat cushion are connected with each other; a buzzer is arranged at a headrest of the chair back; each armrest comprises two elastic connecting parts, two upper supporting plates and a lower supporting plate; the two upper supporting plates are folded and attached to the position over the lower supporting plate through the two elastic connecting parts respectively; and infrared timers are arranged on the end faces, used for supporting the arms of the human body, of the two upper supporting plates and the lower supporting plate. The foldable armrests are composed of the connecting part, the upper supporting plates and the lower supporting plate, the infrared timers are arranged on the upper supporting plates and the lower supporting plate, and the buzzer is arranged on the chair back, so that when a user puts the arm on the armrests for a long time, the infrared timers can time, and after the time calculated by the infrared timers reaches a limit value, the buzzer gives an alarm to remind the user to change the sitting posture, so that the visual impairment of the user caused by the incorrect sitting posture is avoided.

The invention relates to a local coil positioning method, a magnetic resonance system and a computer readable storage medium. The local coil positioning method comprises the steps of acquiring first position information based on relative position information between a local coil and an imaging space of the magnetic resonance system; displaying a mark representing the local coil on an operation interface according to the first position information; receiving the mark selected on the operation interface; and moving the local coil corresponding to the selected mark to the imaging space. Accordingto the invention, the distance between the local coil and the imaging space is acquired, and thus the local coil is moved to the imaging space, so that the accuracy is greatly improved. In addition,the mark corresponding to the local coil can also be displayed on the operation interface, and a user can select the mark through the operation interface so as to realize automatic follow-up operations of the magnetic resonance system, so that the operation time is greatly reduced, requirements for relevant operating experience of technicians are lowered, and visual impairments for patients and technicians are avoided.

The invention discloses a rear projection device, which comprises a screen and a projection unit. The projection unit comprises a first projector, a second projector, a first reflector and a second reflector. The light beam emitted by the first projector is reflected by the first reflector. The mirror is reflected to the screen to form the first light domain, and the light beam emitted by the second projector is reflected to the screen by the second reflector to form the second light domain, and the edge of the first light domain and the edge of the second light domain have a common side. The rear projection device provided by the present invention can realize seamless splicing of multiple images on a large screen, so that the images displayed on the screen are more integrated and beautiful; it avoids the visual barrier caused by the frame blocking the image, and has more advantages. Rich expressiveness.

The invention discloses a welding device for a three-gear and four-gear shifting fork shaft. The welding device comprises a sealed welding box, a shaft lever feed device, a gear shifting guide block feed device, a vacuumizing device, a controller and a drive motor, wherein a welding die, an arc welding machine and a moving mechanism used for controlling the arc welding machine to move are arranged in the welding box, the shaft lever feed device and the gear shifting guide block feed device are communicated with the welding box, the vacuumizing device and the controller are arranged on the welding box, an observation window is arranged on the operating face of the welding box, rolling curtain cloth is arranged above the observation window, and two operation gloves are arranged below the observation window. The drive motor is used for driving the rolling curtain cloth to be rolled down to seal the observation window before welding and to be rolled up after welding, and electrically connected with the controller. The welding device has the advantages that an operator places a shaft lever and a gear shifting guide block to the designed positions on the welding die by means of the operation gloves, then the controller controls the drive motor to roll the rolling curtain cloth down to seal the observation window, under the vacuum condition, the connecting portion of the shaft lever and the gear shifting guide block is welded, the situation that the high-temperature part of the shaft lever is oxidized in the welding process is avoided, and injuries to eyesight of the operator in the welding process can be prevented.

The invention provides a smart glasses case which consists of a glasses case (1), a lining pressure plate (2), a functional circuit board (3), a photosensitive detector (4), a pressure-sensitive sensor (5), a play speaker (6), a lithium battery (7), a power switch (8), a charge socket (9), an earphone socket (10), an earphone (11) and a charger (12). According to the smart glasses case, on the basis of maintaining the glasses containing function of the traditional glasses case and in combination with the objective need for timely eyesight protection of a glasses wearer, the eyesight protection voice and music timing reminding functions are set in the glasses case; when the wearer opens the glasses case and takes out the glasses to wear, an eyesight protection prompt system in the glasses case enters a timing state and drives a voice circuit to play pleasant music, and the wearer feels comfortable and happy and stays in a relax state, thereby avoiding the visual damage caused by over fatigue of the eyes.

The invention relates to a local coil positioning method, a magnetic resonance system and a computer readable storage medium. The local coil positioning method comprises the steps of acquiring first position information based on relative position information between a local coil and an imaging space of the magnetic resonance system; displaying a mark representing the local coil on an operation interface according to the first position information; receiving the mark selected on the operation interface; and moving the local coil corresponding to the selected mark to the imaging space. Accordingto the invention, the distance between the local coil and the imaging space is acquired, and thus the local coil is moved to the imaging space, so that the accuracy is greatly improved. In addition,the mark corresponding to the local coil can also be displayed on the operation interface, and a user can select the mark through the operation interface so as to realize automatic follow-up operations of the magnetic resonance system, so that the operation time is greatly reduced, requirements for relevant operating experience of technicians are lowered, and visual impairments for patients and technicians are avoided.

The invention discloses a welding device for a three-gear and four-gear shifting fork shaft. The welding device comprises a sealed welding box, a shaft lever feed device, a gear shifting guide block feed device, a vacuumizing device, a controller and a drive motor, wherein a welding die, an arc welding machine and a moving mechanism used for controlling the arc welding machine to move are arranged in the welding box, the shaft lever feed device and the gear shifting guide block feed device are communicated with the welding box, the vacuumizing device and the controller are arranged on the welding box, an observation window is arranged on the operating face of the welding box, rolling curtain cloth is arranged above the observation window, and two operation gloves are arranged below the observation window. The drive motor is used for driving the rolling curtain cloth to be rolled down to seal the observation window before welding and to be rolled up after welding, and electrically connected with the controller. The welding device has the advantages that an operator places a shaft lever and a gear shifting guide block to the designed positions on the welding die by means of the operation gloves, then the controller controls the drive motor to roll the rolling curtain cloth down to seal the observation window, under the vacuum condition, the connecting portion of the shaft lever and the gear shifting guide block is welded, the situation that the high-temperature part of the shaft lever is oxidized in the welding process is avoided, and injuries to eyesight of the operator in the welding process can be prevented.

The invention discloses a structural member of a cloud technology intelligent multimedia video game entertainment bed. Comprising a headstock, a tailstock, a backrest plate, a left side plate, a right side plate, an intelligent control module, a laser television, an audio-video system lifting motor driving module, a laser television telescopic motor, an audio effector, a 5.1 surround sound power amplifier, a middle loudspeaker, a left front loudspeaker, a right front loudspeaker, a left surround loudspeaker, a right surround loudspeaker, a bass loudspeaker, a loudspeaker lifting motor, a left control panel, a right control panel and a left storage box. The PC / game host extension bin, the monitoring camera and the left / right side plate wiring groove are arranged on the left / right side plate. According to the intelligent bed structural member, bedrooms of people can be changed into 3D home theater projection halls, music appreciation halls and immersive game rooms, people can experience audio and video works and game works in the bedrooms of themselves in a higher level, and meanwhile the space utilization rate is greatly increased.